From jeff.liu@oracle.com Fri Aug 1 01:09:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 24F407FB6 for ; Fri, 1 Aug 2014 01:09:28 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 021248F808F for ; Thu, 31 Jul 2014 23:09:27 -0700 (PDT) X-ASG-Debug-ID: 1406873365-04cbb02d849eba0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id 41JoU8fWc5D6O6G0 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 31 Jul 2014 23:09:26 -0700 (PDT) X-Barracuda-Envelope-From: jeff.liu@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s7169H0M019497 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 1 Aug 2014 06:09:18 GMT Received: from aserz7021.oracle.com (aserz7021.oracle.com [141.146.126.230]) by ucsinet22.oracle.com (8.14.5+Sun/8.14.5) with ESMTP id s7169GVf026593 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 1 Aug 2014 06:09:17 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s7169GN8024542; Fri, 1 Aug 2014 06:09:16 GMT Received: from [192.168.1.106] (/221.223.108.37) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 31 Jul 2014 23:09:16 -0700 Message-ID: <53DB2F08.2090703@oracle.com> Date: Fri, 01 Aug 2014 14:09:12 +0800 From: Jeff Liu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Dave Chinner CC: "xfs@oss.sgi.com" Subject: Re: [PATCH v3 00/10] xfs_ioc_bulkstat code refactoring and consolidation References: <538D92B6.5050402@oracle.com> <20140729232748.GI26465@dastard> <53D9F67F.9060609@oracle.com> X-ASG-Orig-Subj: Re: [PATCH v3 00/10] xfs_ioc_bulkstat code refactoring and consolidation In-Reply-To: <53D9F67F.9060609@oracle.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: ucsinet22.oracle.com [156.151.31.94] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1406873366 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8023 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 07/31/2014 15:55 PM, Jeff Liu wrote: > Hi Dave, > > On 07/30/2014 07:27 AM, Dave Chinner wrote: >> On Tue, Jun 03, 2014 at 05:17:42PM +0800, Jeff Liu wrote: >>> Hi folk, >>> >>> This is the revised patches for xfs_ioc_bulkstat consolidation and code >>> refactoring. As per Christoph's comments, I'm not include the per AG >>> inumber patch in this series given that I don't actually introduce the >>> relevant inumbers interface now. Similar to that reason, I also dropped >>> the per AG bulkstat patch, it would be included in parallel quota check >>> series. >>> >>> >>> v3->v2: >>> - one major bug fix is at xfs_bulkstat_ag_ichunk() regarding the user buffer >>> pointer operations, it should be defined as a pointer-to-pointer since it >>> would be updated inside xfs_bulkstat_ag_ichunk(). >>> >>> - separate xfs_inumber consolidate patch into two patches, the first one >>> fix the formater function return value and consolidate the codes, another >>> one does the actual logic changes for better error handling. >>> >>> - Add a separate patch to get rid of the redundant user buffer count >>> checks at xfs_bulkstat() >>> >>> - fixed agino calculation issue at xfs_bulkstat_grab_ichunk(). >>> >>> v2: http://oss.sgi.com/archives/xfs/2014-04/msg00554.html >>> v1: http://oss.sgi.com/archives/xfs/2013-12/msg00901.html >>> >>> >>> Any comments are welcome! >> >> Hi Jeff, I ported this to the current dev tree based on the >> xfs-libxfs-restructure branch, and I keep seeing fsstress failing >> with memory corruption after random bulkstat ioctls. I see regular >> failures with generic/013, generic/068, xfs/167 and the other >> fstress tests also randomly fail. The typical failure is glibc >> detected memory heap corruption on freeing the bulkstat structure >> after the ioctl: >> >> generic/068 42s ...*** Error in `./ltp/fsstress': double free or corruption (!prev): 0x00007f0224000b70 *** >> ======= Backtrace: ========= > > Sorry for my late response and thanks for help porting this patch series. > > Now I can reproduce this issue frequently with generic/013, will try to fix > it ASAP. Hi Dave, Could you please check the patch below for this issue? From: Jie Liu Subject: xfs: always updating acp elements at xfs_bulkstat_ag_ichunk After processing the inodes in chunk, we should always updating the last inode number and the left user buffer info no matter anything wrong while formatting an inode to the user buffer. Otherwise, the related info might be updated improperly at xfs_bulkstat() for the next round of inode processing. Signed-off-by: Jie Liu --- fs/xfs/xfs_itable.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 9959a05..f71be9c 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -328,11 +328,9 @@ xfs_bulkstat_ag_ichunk( lastino = ino; } - if (!error) { - acp->ac_lastino = lastino; - acp->ac_ubleft = ubleft; - acp->ac_ubelem = ubelem; - } + acp->ac_lastino = lastino; + acp->ac_ubleft = ubleft; + acp->ac_ubelem = ubelem; return error; } -- 1.8.3.2 Cheers, -Jeff From fmorision3@gmail.com Fri Aug 1 06:03:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.6 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,FREEMAIL_REPLY,HK_SCAM_S7,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ACC697FC2 for ; Fri, 1 Aug 2014 06:03:37 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2CD78AC003 for ; Fri, 1 Aug 2014 04:03:34 -0700 (PDT) X-ASG-Debug-ID: 1406891009-04cbb02d84aaa90001-NocioJ Received: from mail-ig0-f194.google.com (mail-ig0-f194.google.com [209.85.213.194]) by cuda.sgi.com with ESMTP id 2iZGeXDVQuXupUBO (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 01 Aug 2014 04:03:29 -0700 (PDT) X-Barracuda-Envelope-From: fmorision3@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.194 X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.194] Received: by mail-ig0-f194.google.com with SMTP id r2so295487igi.9 for ; Fri, 01 Aug 2014 04:03:29 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.194] X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.194] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=5XRVcBxeVCG6+pmEfKeKt9DzUVnW7CsanpipSxZddLc=; b=dw7VRp6Mt9T10Lpl/PvODgfjsaDBoxpOh6EqwGS7AQKV0RItBIcP5qXtiCCSWv549i aqqXMWTJk1CsVILqFvtlDGjz/hWf1V9UdTKqtMQF93S4MjxG2XFz67FS42K48SFyZHah Sj+4EEvNx4RRCSWFQ4UCSasnhoMYg+LErDVn0cLxp+7G2AtltoIE41nUyoWGMGpfnu6e kRV/BCZYS55HYmblnswFD0uNvVlIydCx7R19E2cqGgjXER7UFRQY2BqSylBmNBU2kuFW gYUH842ljhPssbccu9kmNO9u426LHsFFTCmf+LzFrNovDeIQCU/9JyUkREqOplfqRegR YMhA== MIME-Version: 1.0 X-Received: by 10.50.33.100 with SMTP id q4mr6327284igi.8.1406889581259; Fri, 01 Aug 2014 03:39:41 -0700 (PDT) Received: by 10.64.243.135 with HTTP; Fri, 1 Aug 2014 03:39:41 -0700 (PDT) Date: Fri, 1 Aug 2014 12:39:41 +0200 Message-ID: Subject: Re: Very Urgent............ From: Fabian Morision X-ASG-Orig-Subj: Re: Very Urgent............ To: undisclosed-recipients:; Content-Type: multipart/alternative; boundary=089e0158b034bab6a604ff8f01ba X-Barracuda-Connect: mail-ig0-f194.google.com[209.85.213.194] X-Barracuda-Start-Time: 1406891009 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8030 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --089e0158b034bab6a604ff8f01ba Content-Type: text/plain; charset=UTF-8 -- Greetings from gulf region Thanks for the e-mail. I am very interested on funding lucrative business partnership with you acting as the manager and sole controller of the investment while i remain a silent investor for a period of ten yrs , though I am only looking at investment opportunities within the range you specified for a start. You can reply me here (fmorision@yahoo.com) Let me know your thought asap. Regards Financial Consultant Mr.Fabian Morision --089e0158b034bab6a604ff8f01ba Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


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Greetings from gulf r= egion

Thanks for the e-mail. I am very interested on funding lucrati= ve business partnership with you acting as the manager and sole controller = of the investment while i remain a silent investor for a period of ten yrs = , though I am only looking at investment opportunities within the range you= specified for a start. You can reply me here (fmorision@yahoo.com)

Let me know your thought asap.

Regards

Financial Consulta= nt

Mr.Fabian Morision
--089e0158b034bab6a604ff8f01ba-- From bfoster@redhat.com Fri Aug 1 07:44:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1BEF07FC0 for ; Fri, 1 Aug 2014 07:44:15 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id BB949AC00A for ; Fri, 1 Aug 2014 05:44:11 -0700 (PDT) X-ASG-Debug-ID: 1406897047-04bdf03d43b58c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 4jvasqUxhuL7rV6V (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 05:44:07 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s71Ci5WA023217 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Aug 2014 08:44:05 -0400 Received: from laptop.bfoster (vpn-239-219.phx2.redhat.com [10.3.239.219]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s71Ci2tb010773 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 1 Aug 2014 08:44:04 -0400 Date: Fri, 1 Aug 2014 08:44:02 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: flush both inodes in xfs_swap_extents Message-ID: <20140801124401.GA3582@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: flush both inodes in xfs_swap_extents References: <1406787128-11897-1-git-send-email-david@fromorbit.com> <1406787128-11897-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406787128-11897-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1406897047 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Jul 31, 2014 at 04:12:08PM +1000, Dave Chinner wrote: > From: Dave Chinner > > We need to treat both inodes identically from a page cache point of > view when prepareing them for extent swapping. We don't do this > right now - we assume that one of the inodes empty, because that's > what xfs_fsr currently does. Remove this assumption from the code. > > While factoring out the flushing and related checks, move the > transactions reservation to immeidately after the flushes so that we > don't need to pick up and then drop the ilock to do the transaction > reservation. There are no issues with aborting the transaction it if > the checks fail before we join the inodes to the transaction and > dirty them, so this is a safe change to make. > > Signed-off-by: Dave Chinner > --- Both of these looked fine to me, but I couldn't apply this one to for-next or master... Brian > fs/xfs/xfs_bmap_util.c | 81 +++++++++++++++++++++++--------------------------- > 1 file changed, 37 insertions(+), 44 deletions(-) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 3c60c43..2f1e30d 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1619,6 +1619,30 @@ xfs_swap_extents_check_format( > } > > int > +xfs_swap_extent_flush( > + struct xfs_inode *ip) > +{ > + int error; > + > + error = filemap_write_and_wait(VFS_I(ip)->i_mapping); > + if (error) > + return error; > + truncate_pagecache_range(VFS_I(ip), 0, -1); > + > + /* Verify O_DIRECT for ftmp */ > + if (VFS_I(ip)->i_mapping->nrpages) > + return -EINVAL; > + > + /* > + * Don't try to swap extents on mmap()d files because we can't lock > + * out races against page faults safely. > + */ > + if (mapping_mapped(VFS_I(ip)->i_mapping)) > + return -EBUSY; > + return 0; > +} > + > +int > xfs_swap_extents( > xfs_inode_t *ip, /* target inode */ > xfs_inode_t *tip, /* tmp inode */ > @@ -1662,26 +1686,28 @@ xfs_swap_extents( > goto out_unlock; > } > > - error = filemap_write_and_wait(VFS_I(tip)->i_mapping); > + error = xfs_swap_extent_flush(ip); > + if (error) > + goto out_unlock; > + error = xfs_swap_extent_flush(tip); > if (error) > goto out_unlock; > - truncate_pagecache_range(VFS_I(tip), 0, -1); > - > - xfs_lock_two_inodes(ip, tip, XFS_ILOCK_EXCL); > - lock_flags |= XFS_ILOCK_EXCL; > > - /* Verify O_DIRECT for ftmp */ > - if (VFS_I(tip)->i_mapping->nrpages) { > - error = -EINVAL; > + tp = xfs_trans_alloc(mp, XFS_TRANS_SWAPEXT); > + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ichange, 0, 0); > + if (error) { > + xfs_trans_cancel(tp, 0); > goto out_unlock; > } > + xfs_lock_two_inodes(ip, tip, XFS_ILOCK_EXCL); > + lock_flags |= XFS_ILOCK_EXCL; > > /* Verify all data are being swapped */ > if (sxp->sx_offset != 0 || > sxp->sx_length != ip->i_d.di_size || > sxp->sx_length != tip->i_d.di_size) { > error = -EFAULT; > - goto out_unlock; > + goto out_trans_cancel; > } > > trace_xfs_swap_extent_before(ip, 0); > @@ -1693,7 +1719,7 @@ xfs_swap_extents( > xfs_notice(mp, > "%s: inode 0x%llx format is incompatible for exchanging.", > __func__, ip->i_ino); > - goto out_unlock; > + goto out_trans_cancel; > } > > /* > @@ -1708,41 +1734,8 @@ xfs_swap_extents( > (sbp->bs_mtime.tv_sec != VFS_I(ip)->i_mtime.tv_sec) || > (sbp->bs_mtime.tv_nsec != VFS_I(ip)->i_mtime.tv_nsec)) { > error = -EBUSY; > - goto out_unlock; > - } > - > - /* We need to fail if the file is memory mapped. Once we have tossed > - * all existing pages, the page fault will have no option > - * but to go to the filesystem for pages. By making the page fault call > - * vop_read (or write in the case of autogrow) they block on the iolock > - * until we have switched the extents. > - */ > - if (mapping_mapped(VFS_I(ip)->i_mapping)) { > - error = -EBUSY; > - goto out_unlock; > - } > - > - xfs_iunlock(ip, XFS_ILOCK_EXCL); > - xfs_iunlock(tip, XFS_ILOCK_EXCL); > - lock_flags &= ~XFS_ILOCK_EXCL; > - > - /* > - * There is a race condition here since we gave up the > - * ilock. However, the data fork will not change since > - * we have the iolock (locked for truncation too) so we > - * are safe. We don't really care if non-io related > - * fields change. > - */ > - truncate_pagecache_range(VFS_I(ip), 0, -1); > - > - tp = xfs_trans_alloc(mp, XFS_TRANS_SWAPEXT); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ichange, 0, 0); > - if (error) > goto out_trans_cancel; > - > - xfs_lock_two_inodes(ip, tip, XFS_ILOCK_EXCL); > - lock_flags |= XFS_ILOCK_EXCL; > - > + } > /* > * Count the number of extended attribute blocks > */ > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 1 08:53:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1E5B17F57 for ; Fri, 1 Aug 2014 08:53:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0C7B330406B for ; Fri, 1 Aug 2014 06:53:10 -0700 (PDT) X-ASG-Debug-ID: 1406901185-04cbb02d84b0780001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id eaDBXtd1irko3Shb (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 06:53:06 -0700 (PDT) X-Barracuda-Envelope-From: BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XDDGb-0008Nr-8G; Fri, 01 Aug 2014 13:53:05 +0000 Date: Fri, 1 Aug 2014 06:53:05 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: xfs-oss Subject: Re: Is jdm_delete_filehandle part of a public API? Message-ID: <20140801135305.GA31894@infradead.org> X-ASG-Orig-Subj: Re: Is jdm_delete_filehandle part of a public API? References: <53D7DA7F.2040706@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53D7DA7F.2040706@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1406901185 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8034 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Jul 29, 2014 at 12:31:43PM -0500, Eric Sandeen wrote: > I was cleaning up xfsprogs to plug some leaks, and wanted to use > jdm_delete_filehandle(). I noticed that it has an "hlen" argument which > is unused. > > Can we remove that, or is this part of a public API? It's not in any > manpage (or even called anywhere in xfsprogs/xfstests/xfsdump/dmapi) > but it is in a public header... > > anyone know? > > If needed I guess I can just call it with hlen==0, but that seems odd. If it's in a public header we shouldn't touch it unless there's a pressing need. Talking about libhandle: this one has been a bit bitrotted. Maybe it's a good time to move everything over to the kernel by handle syscalls and deprecated it? From BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 1 09:26:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DF1E87F37 for ; Fri, 1 Aug 2014 09:26:48 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id CDBE48F8071 for ; Fri, 1 Aug 2014 07:26:45 -0700 (PDT) X-ASG-Debug-ID: 1406903204-04cbb02d84b17f0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id VS8fyJaEbQJ9FKrM (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 07:26:44 -0700 (PDT) X-Barracuda-Envelope-From: BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XDDn9-00072m-UR; Fri, 01 Aug 2014 14:26:43 +0000 Date: Fri, 1 Aug 2014 07:26:43 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: catch buffers written without verifiers attached Message-ID: <20140801142643.GA26455@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: catch buffers written without verifiers attached References: <1406768509-32556-1-git-send-email-david@fromorbit.com> <1406768509-32556-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406768509-32556-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1406903204 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, Reviewed-by: Christoph Hellwig From BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 1 09:27:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3703D7F37 for ; Fri, 1 Aug 2014 09:27:42 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 16146304051 for ; Fri, 1 Aug 2014 07:27:39 -0700 (PDT) X-ASG-Debug-ID: 1406903257-04bdf03d43b9960001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id VY56FnbxgjQd7s1O (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 07:27:37 -0700 (PDT) X-Barracuda-Envelope-From: BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XDDo1-00077Y-RB; Fri, 01 Aug 2014 14:27:37 +0000 Date: Fri, 1 Aug 2014 07:27:37 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: ensure verifiers are attached to recovered buffers Message-ID: <20140801142737.GB26455@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: ensure verifiers are attached to recovered buffers References: <1406768509-32556-1-git-send-email-david@fromorbit.com> <1406768509-32556-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406768509-32556-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1406903257 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 1 09:28:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 498F87F37 for ; Fri, 1 Aug 2014 09:28:31 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D93F2AC00C for ; Fri, 1 Aug 2014 07:28:27 -0700 (PDT) X-ASG-Debug-ID: 1406903306-04cb6c555daa7e0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id A51ghBfx8LcMr61c (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 07:28:26 -0700 (PDT) X-Barracuda-Envelope-From: BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XDDoo-0007CW-9I; Fri, 01 Aug 2014 14:28:26 +0000 Date: Fri, 1 Aug 2014 07:28:26 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/4] xfs: quotacheck leaves dquot buffers without verifiers Message-ID: <20140801142826.GC26455@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: quotacheck leaves dquot buffers without verifiers References: <1406768509-32556-1-git-send-email-david@fromorbit.com> <1406768509-32556-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406768509-32556-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1406903306 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, Reviewed-by: Christoph Hellwig From BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 1 09:30:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7AE287F37 for ; Fri, 1 Aug 2014 09:30:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 16550AC005 for ; Fri, 1 Aug 2014 07:30:24 -0700 (PDT) X-ASG-Debug-ID: 1406903423-04bdf03d43b9a90001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id HqoJdEl0AWBjEGHI (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 07:30:23 -0700 (PDT) X-Barracuda-Envelope-From: BATV+4041ec451d47f32d1b83+3995+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XDDqh-0000DG-QH; Fri, 01 Aug 2014 14:30:23 +0000 Date: Fri, 1 Aug 2014 07:30:23 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/4] xfs: dquot recovery needs verifiers Message-ID: <20140801143023.GD26455@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: dquot recovery needs verifiers References: <1406768509-32556-1-git-send-email-david@fromorbit.com> <1406768509-32556-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406768509-32556-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1406903423 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Jul 31, 2014 at 11:01:49AM +1000, Dave Chinner wrote: > From: Dave Chinner > > dquot recovery should add verifiers to the dquot buffers that it > recovers changes into. Unfortunately, it doesn't attached the > verifiers to the buffers in a consistent manner. For example, > xlog_recover_dquot_pass2() reads dquot buffers without a verifier > and then writes it without ever having attached a verifier to the > buffer. > > Further, dquot buffer recovery may write a dquot buffer that has not > been modified, or indeed, shoul dbe written because quotas are not > enabled and hence changes to the buffer were not replayed. In this > case, we again write buffers without verifiers attached because that > doesn't happen until after the buffer changes have been replayed. > > Signed-off-by: Dave Chinner The xlog_recover_do_reg_buffer look fine to me, but what's the rationale for removing the xfs_dqcheck call? From bfoster@redhat.com Fri Aug 1 09:37:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E3D417F37 for ; Fri, 1 Aug 2014 09:37:59 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D0BA9304067 for ; Fri, 1 Aug 2014 07:37:59 -0700 (PDT) X-ASG-Debug-ID: 1406903876-04cb6c555eaabb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id mpOQQ8Huc9xPlfhy (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 07:37:57 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s71Ebs7v000751 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Aug 2014 10:37:54 -0400 Received: from laptop.bfoster (vpn-239-219.phx2.redhat.com [10.3.239.219]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s71EbqJw014040 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 1 Aug 2014 10:37:54 -0400 Date: Fri, 1 Aug 2014 10:37:51 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/6] xfs: remove bitfield based superblock updates Message-ID: <20140801143751.GB3582@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: remove bitfield based superblock updates References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406791995-14723-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1406903877 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Jul 31, 2014 at 05:33:10PM +1000, Dave Chinner wrote: > From: Dave Chinner > > When we log changes to the superblock, we first have to write them > to the on-disk buffer, and then log that. Right now we have a > complex bitfield based arrangement to only write the modified field > to the buffer before we log it. > > This used to be necessary as a performance optimisation because we > logged the superblock buffer in every extent or inode allocation or > freeing, and so performance was extremely important. We haven't done > this for years, however, ever since the lazy superblock counters > pulled the superblock logging out of the transaction commit > fast path. > > Hence we have a bunch of complexity that is not necessary that makes > writing the in-core superblock to disk much more complex than it > needs to be. We only need to log the superblock now during > management operations (e.g. during mount, unmount or quota control > operations) so it is not a performance critical path anymore. > > As such, remove the complex field based logging mechanism and > replace it with a simple conversion function similar to what we use > for all other on-disk structures. > > This means we always log the entirity of the superblock, but again > because we rarely modify the superblock this is not an issue for log > bandwidth or CPU time. Indeed, if we do log the superblock > frequently, delayed logging will minimise the impact of this > overhead. > > Signed-off-by: Dave Chinner > Signed-off-by: Dave Chinner > --- > fs/xfs/libxfs/xfs_attr_leaf.c | 2 +- > fs/xfs/libxfs/xfs_bmap.c | 14 +-- > fs/xfs/libxfs/xfs_sb.c | 287 +++++++++++++++--------------------------- > fs/xfs/libxfs/xfs_sb.h | 10 +- > fs/xfs/xfs_fsops.c | 6 +- > fs/xfs/xfs_mount.c | 18 +-- > fs/xfs/xfs_mount.h | 2 +- > fs/xfs/xfs_qm.c | 26 +--- > fs/xfs/xfs_qm.h | 2 +- > fs/xfs/xfs_qm_syscalls.c | 13 +- > fs/xfs/xfs_super.c | 2 +- > 11 files changed, 130 insertions(+), 252 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c > index b1f73db..f4a47a7 100644 > --- a/fs/xfs/libxfs/xfs_attr_leaf.c > +++ b/fs/xfs/libxfs/xfs_attr_leaf.c > @@ -405,7 +405,7 @@ xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp) > if (!xfs_sb_version_hasattr2(&mp->m_sb)) { > xfs_sb_version_addattr2(&mp->m_sb); > spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp, XFS_SB_VERSIONNUM | XFS_SB_FEATURES2); > + xfs_mod_sb(tp); > } else > spin_unlock(&mp->m_sb_lock); > } > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index de2d26d..15e8c09 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -1224,22 +1224,20 @@ xfs_bmap_add_attrfork( > goto bmap_cancel; > if (!xfs_sb_version_hasattr(&mp->m_sb) || > (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) { > - __int64_t sbfields = 0; > + bool mod_sb = false; > > spin_lock(&mp->m_sb_lock); > if (!xfs_sb_version_hasattr(&mp->m_sb)) { > xfs_sb_version_addattr(&mp->m_sb); > - sbfields |= XFS_SB_VERSIONNUM; > + mod_sb = true; > } > if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) { > xfs_sb_version_addattr2(&mp->m_sb); > - sbfields |= (XFS_SB_VERSIONNUM | XFS_SB_FEATURES2); > + mod_sb = true; > } > - if (sbfields) { > - spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp, sbfields); > - } else > - spin_unlock(&mp->m_sb_lock); > + spin_unlock(&mp->m_sb_lock); > + if (mod_sb) > + xfs_mod_sb(tp); > } > > error = xfs_bmap_finish(&tp, &flist, &committed); > diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c > index 6e93b5e..d16b549 100644 > --- a/fs/xfs/libxfs/xfs_sb.c > +++ b/fs/xfs/libxfs/xfs_sb.c > @@ -42,69 +42,6 @@ > * Physical superblock buffer manipulations. Shared with libxfs in userspace. > */ > > -static const struct { > - short offset; > - short type; /* 0 = integer > - * 1 = binary / string (no translation) > - */ > -} xfs_sb_info[] = { > - { offsetof(xfs_sb_t, sb_magicnum), 0 }, > - { offsetof(xfs_sb_t, sb_blocksize), 0 }, > - { offsetof(xfs_sb_t, sb_dblocks), 0 }, > - { offsetof(xfs_sb_t, sb_rblocks), 0 }, > - { offsetof(xfs_sb_t, sb_rextents), 0 }, > - { offsetof(xfs_sb_t, sb_uuid), 1 }, > - { offsetof(xfs_sb_t, sb_logstart), 0 }, > - { offsetof(xfs_sb_t, sb_rootino), 0 }, > - { offsetof(xfs_sb_t, sb_rbmino), 0 }, > - { offsetof(xfs_sb_t, sb_rsumino), 0 }, > - { offsetof(xfs_sb_t, sb_rextsize), 0 }, > - { offsetof(xfs_sb_t, sb_agblocks), 0 }, > - { offsetof(xfs_sb_t, sb_agcount), 0 }, > - { offsetof(xfs_sb_t, sb_rbmblocks), 0 }, > - { offsetof(xfs_sb_t, sb_logblocks), 0 }, > - { offsetof(xfs_sb_t, sb_versionnum), 0 }, > - { offsetof(xfs_sb_t, sb_sectsize), 0 }, > - { offsetof(xfs_sb_t, sb_inodesize), 0 }, > - { offsetof(xfs_sb_t, sb_inopblock), 0 }, > - { offsetof(xfs_sb_t, sb_fname[0]), 1 }, > - { offsetof(xfs_sb_t, sb_blocklog), 0 }, > - { offsetof(xfs_sb_t, sb_sectlog), 0 }, > - { offsetof(xfs_sb_t, sb_inodelog), 0 }, > - { offsetof(xfs_sb_t, sb_inopblog), 0 }, > - { offsetof(xfs_sb_t, sb_agblklog), 0 }, > - { offsetof(xfs_sb_t, sb_rextslog), 0 }, > - { offsetof(xfs_sb_t, sb_inprogress), 0 }, > - { offsetof(xfs_sb_t, sb_imax_pct), 0 }, > - { offsetof(xfs_sb_t, sb_icount), 0 }, > - { offsetof(xfs_sb_t, sb_ifree), 0 }, > - { offsetof(xfs_sb_t, sb_fdblocks), 0 }, > - { offsetof(xfs_sb_t, sb_frextents), 0 }, > - { offsetof(xfs_sb_t, sb_uquotino), 0 }, > - { offsetof(xfs_sb_t, sb_gquotino), 0 }, > - { offsetof(xfs_sb_t, sb_qflags), 0 }, > - { offsetof(xfs_sb_t, sb_flags), 0 }, > - { offsetof(xfs_sb_t, sb_shared_vn), 0 }, > - { offsetof(xfs_sb_t, sb_inoalignmt), 0 }, > - { offsetof(xfs_sb_t, sb_unit), 0 }, > - { offsetof(xfs_sb_t, sb_width), 0 }, > - { offsetof(xfs_sb_t, sb_dirblklog), 0 }, > - { offsetof(xfs_sb_t, sb_logsectlog), 0 }, > - { offsetof(xfs_sb_t, sb_logsectsize), 0 }, > - { offsetof(xfs_sb_t, sb_logsunit), 0 }, > - { offsetof(xfs_sb_t, sb_features2), 0 }, > - { offsetof(xfs_sb_t, sb_bad_features2), 0 }, > - { offsetof(xfs_sb_t, sb_features_compat), 0 }, > - { offsetof(xfs_sb_t, sb_features_ro_compat), 0 }, > - { offsetof(xfs_sb_t, sb_features_incompat), 0 }, > - { offsetof(xfs_sb_t, sb_features_log_incompat), 0 }, > - { offsetof(xfs_sb_t, sb_crc), 0 }, > - { offsetof(xfs_sb_t, sb_pad), 0 }, > - { offsetof(xfs_sb_t, sb_pquotino), 0 }, > - { offsetof(xfs_sb_t, sb_lsn), 0 }, > - { sizeof(xfs_sb_t), 0 } > -}; > - > /* > * Reference counting access wrappers to the perag structures. > * Because we never free per-ag structures, the only thing we > @@ -447,125 +384,119 @@ xfs_sb_from_disk( > to->sb_lsn = be64_to_cpu(from->sb_lsn); > } > > -static inline void > +static void > xfs_sb_quota_to_disk( > - xfs_dsb_t *to, > - xfs_sb_t *from, > - __int64_t *fields) > + struct xfs_dsb *to, > + struct xfs_sb *from) > { > __uint16_t qflags = from->sb_qflags; > > + to->sb_uquotino = cpu_to_be64(from->sb_uquotino); > + if (xfs_sb_version_has_pquotino(from)) { > + to->sb_qflags = be16_to_cpu(from->sb_qflags); > + to->sb_gquotino = cpu_to_be64(from->sb_gquotino); > + to->sb_pquotino = cpu_to_be64(from->sb_pquotino); > + return; > + } > + Ok, so we're inheriting the quota conversion from xfs_sb_to_disk() unconditionally (as opposed to previously being solely a has_pquotino() fixup function). > /* > - * We need to do these manipilations only if we are working > - * with an older version of on-disk superblock. > + * The in-core version of sb_qflags do not have XFS_OQUOTA_* > + * flags, whereas the on-disk version does. So, convert incore > + * XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags. > */ > - if (xfs_sb_version_has_pquotino(from)) > - return; > + qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | > + XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); > > - if (*fields & XFS_SB_QFLAGS) { > - /* > - * The in-core version of sb_qflags do not have > - * XFS_OQUOTA_* flags, whereas the on-disk version > - * does. So, convert incore XFS_{PG}QUOTA_* flags > - * to on-disk XFS_OQUOTA_* flags. > - */ > - qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | > - XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); > - > - if (from->sb_qflags & > - (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) > - qflags |= XFS_OQUOTA_ENFD; > - if (from->sb_qflags & > - (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) > - qflags |= XFS_OQUOTA_CHKD; > - to->sb_qflags = cpu_to_be16(qflags); > - *fields &= ~XFS_SB_QFLAGS; > - } > + if (from->sb_qflags & > + (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) > + qflags |= XFS_OQUOTA_ENFD; > + if (from->sb_qflags & > + (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) > + qflags |= XFS_OQUOTA_CHKD; > + to->sb_qflags = cpu_to_be16(qflags); > > /* > - * GQUOTINO and PQUOTINO cannot be used together in versions of > - * superblock that do not have pquotino. from->sb_flags tells us which > - * quota is active and should be copied to disk. If neither are active, > - * make sure we write NULLFSINO to the sb_gquotino field as a quota > - * inode value of "0" is invalid when the XFS_SB_VERSION_QUOTA feature > - * bit is set. > + * GQUOTINO and PQUOTINO cannot be used together in versions > + * of superblock that do not have pquotino. from->sb_flags > + * tells us which quota is active and should be copied to > + * disk. If neither are active, we should NULL the inode. > * > - * Note that we don't need to handle the sb_uquotino or sb_pquotino here > - * as they do not require any translation. Hence the main sb field loop > - * will write them appropriately from the in-core superblock. > + * In all cases, the separate pquotino must remain 0 because it > + * it beyond the "end" of the valid non-pquotino superblock. > */ > - if ((*fields & XFS_SB_GQUOTINO) && > - (from->sb_qflags & XFS_GQUOTA_ACCT)) > + if (from->sb_qflags & XFS_GQUOTA_ACCT) > to->sb_gquotino = cpu_to_be64(from->sb_gquotino); > - else if ((*fields & XFS_SB_PQUOTINO) && > - (from->sb_qflags & XFS_PQUOTA_ACCT)) > + else if (from->sb_qflags & XFS_PQUOTA_ACCT) > to->sb_gquotino = cpu_to_be64(from->sb_pquotino); > - else { > - /* > - * We can't rely on just the fields being logged to tell us > - * that it is safe to write NULLFSINO - we should only do that > - * if quotas are not actually enabled. Hence only write > - * NULLFSINO if both in-core quota inodes are NULL. > - */ > - if (from->sb_gquotino == NULLFSINO && > - from->sb_pquotino == NULLFSINO) > - to->sb_gquotino = cpu_to_be64(NULLFSINO); > - } > + else > + to->sb_gquotino = cpu_to_be64(NULLFSINO); I'll ask since I'm not 100% on the backwards compatibility fixup here... but this else condition is effectively the same logic as the previous NULLFSINO checks due to the *QUOTA_ACCT flags checks, yes? If so, the rest looks fine: Reviewed-by: Brian Foster Brian > > - *fields &= ~(XFS_SB_PQUOTINO | XFS_SB_GQUOTINO); > + to->sb_pquotino = 0; > } > > -/* > - * Copy in core superblock to ondisk one. > - * > - * The fields argument is mask of superblock fields to copy. > - */ > void > xfs_sb_to_disk( > - xfs_dsb_t *to, > - xfs_sb_t *from, > - __int64_t fields) > + struct xfs_dsb *to, > + struct xfs_sb *from) > { > - xfs_caddr_t to_ptr = (xfs_caddr_t)to; > - xfs_caddr_t from_ptr = (xfs_caddr_t)from; > - xfs_sb_field_t f; > - int first; > - int size; > - > - ASSERT(fields); > - if (!fields) > - return; > + xfs_sb_quota_to_disk(to, from); > > - xfs_sb_quota_to_disk(to, from, &fields); > - while (fields) { > - f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields); > - first = xfs_sb_info[f].offset; > - size = xfs_sb_info[f + 1].offset - first; > - > - ASSERT(xfs_sb_info[f].type == 0 || xfs_sb_info[f].type == 1); > - > - if (size == 1 || xfs_sb_info[f].type == 1) { > - memcpy(to_ptr + first, from_ptr + first, size); > - } else { > - switch (size) { > - case 2: > - *(__be16 *)(to_ptr + first) = > - cpu_to_be16(*(__u16 *)(from_ptr + first)); > - break; > - case 4: > - *(__be32 *)(to_ptr + first) = > - cpu_to_be32(*(__u32 *)(from_ptr + first)); > - break; > - case 8: > - *(__be64 *)(to_ptr + first) = > - cpu_to_be64(*(__u64 *)(from_ptr + first)); > - break; > - default: > - ASSERT(0); > - } > - } > + to->sb_magicnum = cpu_to_be32(from->sb_magicnum); > + to->sb_blocksize = cpu_to_be32(from->sb_blocksize); > + to->sb_dblocks = cpu_to_be64(from->sb_dblocks); > + to->sb_rblocks = cpu_to_be64(from->sb_rblocks); > + to->sb_rextents = cpu_to_be64(from->sb_rextents); > + memcpy(&to->sb_uuid, &from->sb_uuid, sizeof(to->sb_uuid)); > + to->sb_logstart = cpu_to_be64(from->sb_logstart); > + to->sb_rootino = cpu_to_be64(from->sb_rootino); > + to->sb_rbmino = cpu_to_be64(from->sb_rbmino); > + to->sb_rsumino = cpu_to_be64(from->sb_rsumino); > + to->sb_rextsize = cpu_to_be32(from->sb_rextsize); > + to->sb_agblocks = cpu_to_be32(from->sb_agblocks); > + to->sb_agcount = cpu_to_be32(from->sb_agcount); > + to->sb_rbmblocks = cpu_to_be32(from->sb_rbmblocks); > + to->sb_logblocks = cpu_to_be32(from->sb_logblocks); > + to->sb_versionnum = cpu_to_be16(from->sb_versionnum); > + to->sb_sectsize = cpu_to_be16(from->sb_sectsize); > + to->sb_inodesize = cpu_to_be16(from->sb_inodesize); > + to->sb_inopblock = cpu_to_be16(from->sb_inopblock); > + memcpy(&to->sb_fname, &from->sb_fname, sizeof(to->sb_fname)); > + to->sb_blocklog = from->sb_blocklog; > + to->sb_sectlog = from->sb_sectlog; > + to->sb_inodelog = from->sb_inodelog; > + to->sb_inopblog = from->sb_inopblog; > + to->sb_agblklog = from->sb_agblklog; > + to->sb_rextslog = from->sb_rextslog; > + to->sb_inprogress = from->sb_inprogress; > + to->sb_imax_pct = from->sb_imax_pct; > + to->sb_icount = cpu_to_be64(from->sb_icount); > + to->sb_ifree = cpu_to_be64(from->sb_ifree); > + to->sb_fdblocks = cpu_to_be64(from->sb_fdblocks); > + to->sb_frextents = cpu_to_be64(from->sb_frextents); > > - fields &= ~(1LL << f); > + > + to->sb_flags = from->sb_flags; > + to->sb_shared_vn = from->sb_shared_vn; > + to->sb_inoalignmt = cpu_to_be32(from->sb_inoalignmt); > + to->sb_unit = cpu_to_be32(from->sb_unit); > + to->sb_width = cpu_to_be32(from->sb_width); > + to->sb_dirblklog = from->sb_dirblklog; > + to->sb_logsectlog = from->sb_logsectlog; > + to->sb_logsectsize = cpu_to_be16(from->sb_logsectsize); > + to->sb_logsunit = cpu_to_be32(from->sb_logsunit); > + to->sb_features2 = cpu_to_be32(from->sb_features2); > + to->sb_bad_features2 = cpu_to_be32(from->sb_bad_features2); > + > + if (xfs_sb_version_hascrc(from)) { > + to->sb_features_compat = cpu_to_be32(from->sb_features_compat); > + to->sb_features_ro_compat = > + cpu_to_be32(from->sb_features_ro_compat); > + to->sb_features_incompat = > + cpu_to_be32(from->sb_features_incompat); > + to->sb_features_log_incompat = > + cpu_to_be32(from->sb_features_log_incompat); > + to->sb_pad = 0; > + to->sb_lsn = cpu_to_be64(from->sb_lsn); > } > } > > @@ -802,35 +733,13 @@ xfs_initialize_perag_data( > * access. > */ > void > -xfs_mod_sb(xfs_trans_t *tp, __int64_t fields) > +xfs_mod_sb( > + struct xfs_trans *tp) > { > - xfs_buf_t *bp; > - int first; > - int last; > - xfs_mount_t *mp; > - xfs_sb_field_t f; > - > - ASSERT(fields); > - if (!fields) > - return; > - mp = tp->t_mountp; > - bp = xfs_trans_getsb(tp, mp, 0); > - first = sizeof(xfs_sb_t); > - last = 0; > - > - /* translate/copy */ > - > - xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, fields); > - > - /* find modified range */ > - f = (xfs_sb_field_t)xfs_highbit64((__uint64_t)fields); > - ASSERT((1LL << f) & XFS_SB_MOD_BITS); > - last = xfs_sb_info[f + 1].offset - 1; > - > - f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields); > - ASSERT((1LL << f) & XFS_SB_MOD_BITS); > - first = xfs_sb_info[f].offset; > + struct xfs_mount *mp = tp->t_mountp; > + struct xfs_buf *bp = xfs_trans_getsb(tp, mp, 0); > > + xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); > xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); > - xfs_trans_log_buf(tp, bp, first, last); > + xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb)); > } > diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h > index 2e73970..c28b3c1 100644 > --- a/fs/xfs/libxfs/xfs_sb.h > +++ b/fs/xfs/libxfs/xfs_sb.h > @@ -611,11 +611,11 @@ extern struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t, > extern void xfs_perag_put(struct xfs_perag *pag); > extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t); > > -extern void xfs_sb_calc_crc(struct xfs_buf *); > -extern void xfs_mod_sb(struct xfs_trans *, __int64_t); > -extern void xfs_sb_mount_common(struct xfs_mount *, struct xfs_sb *); > -extern void xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *); > -extern void xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t); > +extern void xfs_sb_calc_crc(struct xfs_buf *bp); > +extern void xfs_mod_sb(struct xfs_trans *tp); > +extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp); > +extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from); > +extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from); > extern void xfs_sb_quota_from_disk(struct xfs_sb *sbp); > > #endif /* __XFS_SB_H__ */ > diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c > index f91de1e..2c44e0b 100644 > --- a/fs/xfs/xfs_fsops.c > +++ b/fs/xfs/xfs_fsops.c > @@ -548,7 +548,7 @@ xfs_growfs_data_private( > saved_error = error; > continue; > } > - xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS); > + xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb); > > error = xfs_bwrite(bp); > xfs_buf_relse(bp); > @@ -787,9 +787,7 @@ xfs_fs_log_dummy( > xfs_trans_cancel(tp, 0); > return error; > } > - > - /* log the UUID because it is an unchanging field */ > - xfs_mod_sb(tp, XFS_SB_UUID); > + xfs_mod_sb(tp); > xfs_trans_set_sync(tp); > return xfs_trans_commit(tp, 0); > } > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > index 6dbad45..592e169 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -621,7 +621,7 @@ xfs_mount_reset_sbqflags( > return error; > } > > - xfs_mod_sb(tp, XFS_SB_QFLAGS); > + xfs_mod_sb(tp); > return xfs_trans_commit(tp, 0); > } > > @@ -905,7 +905,7 @@ xfs_mountfs( > * perform the update e.g. for the root filesystem. > */ > if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) { > - error = xfs_mount_log_sb(mp, mp->m_update_flags); > + error = xfs_mount_log_sb(mp); > if (error) { > xfs_warn(mp, "failed to write sb changes"); > goto out_rtunmount; > @@ -1122,7 +1122,7 @@ xfs_log_sbcount(xfs_mount_t *mp) > return error; > } > > - xfs_mod_sb(tp, XFS_SB_IFREE | XFS_SB_ICOUNT | XFS_SB_FDBLOCKS); > + xfs_mod_sb(tp); > xfs_trans_set_sync(tp); > error = xfs_trans_commit(tp, 0); > return error; > @@ -1425,25 +1425,19 @@ xfs_freesb( > */ > int > xfs_mount_log_sb( > - xfs_mount_t *mp, > - __int64_t fields) > + xfs_mount_t *mp) > { > xfs_trans_t *tp; > int error; > > - ASSERT(fields & (XFS_SB_UNIT | XFS_SB_WIDTH | XFS_SB_UUID | > - XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2 | > - XFS_SB_VERSIONNUM)); > - > tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT); > error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > if (error) { > xfs_trans_cancel(tp, 0); > return error; > } > - xfs_mod_sb(tp, fields); > - error = xfs_trans_commit(tp, 0); > - return error; > + xfs_mod_sb(tp); > + return xfs_trans_commit(tp, 0); > } > > /* > diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h > index b0447c8..1ae9f56 100644 > --- a/fs/xfs/xfs_mount.h > +++ b/fs/xfs/xfs_mount.h > @@ -380,7 +380,7 @@ extern void xfs_unmountfs(xfs_mount_t *); > extern int xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int); > extern int xfs_mod_incore_sb_batch(xfs_mount_t *, xfs_mod_sb_t *, > uint, int); > -extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); > +extern int xfs_mount_log_sb(xfs_mount_t *); > extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); > extern int xfs_readsb(xfs_mount_t *, int); > extern void xfs_freesb(xfs_mount_t *); > diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c > index 1023210..170f951 100644 > --- a/fs/xfs/xfs_qm.c > +++ b/fs/xfs/xfs_qm.c > @@ -715,7 +715,6 @@ STATIC int > xfs_qm_qino_alloc( > xfs_mount_t *mp, > xfs_inode_t **ip, > - __int64_t sbfields, > uint flags) > { > xfs_trans_t *tp; > @@ -778,11 +777,6 @@ xfs_qm_qino_alloc( > spin_lock(&mp->m_sb_lock); > if (flags & XFS_QMOPT_SBVERSION) { > ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); > - ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | > - XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) == > - (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | > - XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | > - XFS_SB_QFLAGS)); > > xfs_sb_version_addquota(&mp->m_sb); > mp->m_sb.sb_uquotino = NULLFSINO; > @@ -799,7 +793,7 @@ xfs_qm_qino_alloc( > else > mp->m_sb.sb_pquotino = (*ip)->i_ino; > spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp, sbfields); > + xfs_mod_sb(tp); > > if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { > xfs_alert(mp, "%s failed (error %d)!", __func__, error); > @@ -1452,7 +1446,7 @@ xfs_qm_mount_quotas( > spin_unlock(&mp->m_sb_lock); > > if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { > - if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { > + if (xfs_qm_write_sb_changes(mp)) { > /* > * We could only have been turning quotas off. > * We aren't in very good shape actually because > @@ -1483,7 +1477,6 @@ xfs_qm_init_quotainos( > struct xfs_inode *gip = NULL; > struct xfs_inode *pip = NULL; > int error; > - __int64_t sbflags = 0; > uint flags = 0; > > ASSERT(mp->m_quotainfo); > @@ -1518,9 +1511,6 @@ xfs_qm_init_quotainos( > } > } else { > flags |= XFS_QMOPT_SBVERSION; > - sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | > - XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | > - XFS_SB_QFLAGS); > } > > /* > @@ -1531,7 +1521,6 @@ xfs_qm_init_quotainos( > */ > if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { > error = xfs_qm_qino_alloc(mp, &uip, > - sbflags | XFS_SB_UQUOTINO, > flags | XFS_QMOPT_UQUOTA); > if (error) > goto error_rele; > @@ -1540,7 +1529,6 @@ xfs_qm_init_quotainos( > } > if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { > error = xfs_qm_qino_alloc(mp, &gip, > - sbflags | XFS_SB_GQUOTINO, > flags | XFS_QMOPT_GQUOTA); > if (error) > goto error_rele; > @@ -1549,7 +1537,6 @@ xfs_qm_init_quotainos( > } > if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { > error = xfs_qm_qino_alloc(mp, &pip, > - sbflags | XFS_SB_PQUOTINO, > flags | XFS_QMOPT_PQUOTA); > if (error) > goto error_rele; > @@ -1594,8 +1581,7 @@ xfs_qm_dqfree_one( > */ > int > xfs_qm_write_sb_changes( > - xfs_mount_t *mp, > - __int64_t flags) > + struct xfs_mount *mp) > { > xfs_trans_t *tp; > int error; > @@ -1607,10 +1593,8 @@ xfs_qm_write_sb_changes( > return error; > } > > - xfs_mod_sb(tp, flags); > - error = xfs_trans_commit(tp, 0); > - > - return error; > + xfs_mod_sb(tp); > + return xfs_trans_commit(tp, 0); > } > > > diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h > index 3a07a93..bddd23f 100644 > --- a/fs/xfs/xfs_qm.h > +++ b/fs/xfs/xfs_qm.h > @@ -157,7 +157,7 @@ struct xfs_dquot_acct { > #define XFS_QM_RTBWARNLIMIT 5 > > extern void xfs_qm_destroy_quotainfo(struct xfs_mount *); > -extern int xfs_qm_write_sb_changes(struct xfs_mount *, __int64_t); > +extern int xfs_qm_write_sb_changes(struct xfs_mount *); > > /* dquot stuff */ > extern void xfs_qm_dqpurge_all(struct xfs_mount *, uint); > diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c > index 80f2d77..45f28f1 100644 > --- a/fs/xfs/xfs_qm_syscalls.c > +++ b/fs/xfs/xfs_qm_syscalls.c > @@ -93,8 +93,7 @@ xfs_qm_scall_quotaoff( > mutex_unlock(&q->qi_quotaofflock); > > /* XXX what to do if error ? Revert back to old vals incore ? */ > - error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); > - return error; > + return xfs_qm_write_sb_changes(mp); > } > > dqtype = 0; > @@ -315,7 +314,6 @@ xfs_qm_scall_quotaon( > { > int error; > uint qf; > - __int64_t sbflags; > > flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); > /* > @@ -323,8 +321,6 @@ xfs_qm_scall_quotaon( > */ > flags &= ~(XFS_ALL_QUOTA_ACCT); > > - sbflags = 0; > - > if (flags == 0) { > xfs_debug(mp, "%s: zero flags, m_qflags=%x", > __func__, mp->m_qflags); > @@ -371,11 +367,10 @@ xfs_qm_scall_quotaon( > /* > * There's nothing to change if it's the same. > */ > - if ((qf & flags) == flags && sbflags == 0) > + if ((qf & flags) == flags) > return -EEXIST; > - sbflags |= XFS_SB_QFLAGS; > > - if ((error = xfs_qm_write_sb_changes(mp, sbflags))) > + if ((error = xfs_qm_write_sb_changes(mp))) > return error; > /* > * If we aren't trying to switch on quota enforcement, we are done. > @@ -800,7 +795,7 @@ xfs_qm_log_quotaoff( > mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; > spin_unlock(&mp->m_sb_lock); > > - xfs_mod_sb(tp, XFS_SB_QFLAGS); > + xfs_mod_sb(tp); > > /* > * We have to make sure that the transaction is secure on disk before we > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c > index b194652..8aa9eb4 100644 > --- a/fs/xfs/xfs_super.c > +++ b/fs/xfs/xfs_super.c > @@ -1250,7 +1250,7 @@ xfs_fs_remount( > * might have some superblock changes to update. > */ > if (mp->m_update_flags) { > - error = xfs_mount_log_sb(mp, mp->m_update_flags); > + error = xfs_mount_log_sb(mp); > if (error) { > xfs_warn(mp, "failed to write sb changes"); > return error; > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 1 09:39:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 93FAA7F37 for ; Fri, 1 Aug 2014 09:39:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 71A8C8F8071 for ; Fri, 1 Aug 2014 07:39:36 -0700 (PDT) X-ASG-Debug-ID: 1406903974-04cbb02d83b1d30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id fgL7apAvCNmD5C7z (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 07:39:35 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s71EdWkj030952 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 Aug 2014 10:39:32 -0400 Received: from laptop.bfoster (vpn-239-219.phx2.redhat.com [10.3.239.219]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s71EdUAU031232 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 1 Aug 2014 10:39:31 -0400 Date: Fri, 1 Aug 2014 10:39:29 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140801143929.GC3582@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406791995-14723-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1406903974 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Jul 31, 2014 at 05:33:11PM +1000, Dave Chinner wrote: > From: Dave Chinner > > We now have several superblock loggin functions that are identical > except for the transaction reservation and whether it shoul dbe a > synchronous transaction or not. Consolidate these all into a single > function, a single reserveration and a sync flag and call it > xfs_sync_sb(). > > Also, xfs_mod_sb() is not really a modification function - it's the > operation of logging the superblock buffer. hence change the name of > it to reflect this. > > Note that we have to change the mp->m_update_flags that are passed > around at mount time to a boolean simply to indicate a superblock > update is needed. > > Signed-off-by: Dave Chinner > Signed-off-by: Dave Chinner > --- > fs/xfs/libxfs/xfs_attr_leaf.c | 2 +- > fs/xfs/libxfs/xfs_bmap.c | 10 +++--- > fs/xfs/libxfs/xfs_sb.c | 41 ++++++++++++++++++---- > fs/xfs/libxfs/xfs_sb.h | 42 ++--------------------- > fs/xfs/libxfs/xfs_shared.h | 26 ++++++-------- > fs/xfs/libxfs/xfs_trans_resv.c | 14 -------- > fs/xfs/libxfs/xfs_trans_resv.h | 1 - > fs/xfs/xfs_fsops.c | 29 ---------------- > fs/xfs/xfs_log.c | 17 +++++++-- > fs/xfs/xfs_mount.c | 78 +++++++----------------------------------- > fs/xfs/xfs_mount.h | 3 +- > fs/xfs/xfs_qm.c | 27 ++------------- > fs/xfs/xfs_qm_syscalls.c | 7 ++-- > fs/xfs/xfs_super.c | 13 +++---- > 14 files changed, 94 insertions(+), 216 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c > index f4a47a7..bcb0ab1 100644 > --- a/fs/xfs/libxfs/xfs_attr_leaf.c > +++ b/fs/xfs/libxfs/xfs_attr_leaf.c > @@ -405,7 +405,7 @@ xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp) > if (!xfs_sb_version_hasattr2(&mp->m_sb)) { > xfs_sb_version_addattr2(&mp->m_sb); > spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp); > + xfs_log_sb(tp); > } else > spin_unlock(&mp->m_sb_lock); > } > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index 15e8c09..3a6a700 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -1224,20 +1224,20 @@ xfs_bmap_add_attrfork( > goto bmap_cancel; > if (!xfs_sb_version_hasattr(&mp->m_sb) || > (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) { > - bool mod_sb = false; > + bool log_sb = false; > > spin_lock(&mp->m_sb_lock); > if (!xfs_sb_version_hasattr(&mp->m_sb)) { > xfs_sb_version_addattr(&mp->m_sb); > - mod_sb = true; > + log_sb = true; > } > if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) { > xfs_sb_version_addattr2(&mp->m_sb); > - mod_sb = true; > + log_sb = true; > } > spin_unlock(&mp->m_sb_lock); > - if (mod_sb) > - xfs_mod_sb(tp); > + if (log_sb) > + xfs_log_sb(tp); > } > > error = xfs_bmap_finish(&tp, &flist, &committed); > diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c > index d16b549..d77d344 100644 > --- a/fs/xfs/libxfs/xfs_sb.c > +++ b/fs/xfs/libxfs/xfs_sb.c > @@ -726,14 +726,13 @@ xfs_initialize_perag_data( > } > > /* > - * xfs_mod_sb() can be used to copy arbitrary changes to the > - * in-core superblock into the superblock buffer to be logged. > - * It does not provide the higher level of locking that is > - * needed to protect the in-core superblock from concurrent > - * access. > + * xfs_log_sb() can be used to copy arbitrary changes to the in-core superblock > + * into the superblock buffer to be logged. It does not provide the higher > + * level of locking that is needed to protect the in-core superblock from > + * concurrent access. > */ > void > -xfs_mod_sb( > +xfs_log_sb( > struct xfs_trans *tp) > { > struct xfs_mount *mp = tp->t_mountp; > @@ -743,3 +742,33 @@ xfs_mod_sb( > xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF); > xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb)); > } > + > +/* > + * xfs_sync_sb > + * > + * Sync the superblock to disk. > + * > + * Note this code can be called during the process of freezing, so > + * we may need to use the transaction allocator which does not > + * block when the transaction subsystem is in its frozen state. > + */ > +int > +xfs_sync_sb( > + struct xfs_mount *mp, > + bool wait) > +{ > + struct xfs_trans *tp; > + int error; > + > + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); We're converting some previous calls of xfs_trans_alloc() to the _xfs_trans_alloc() variant. The only difference is the dropped call to sb_start_intwrite() and I see that technically we handle that with the xfs_fs_writeable() check. Unless I misunderstand, the sb_start_inwrite() call is what will block us on internal transaction allocs once the fs is already frozen. It seems a little dicey to me to offer up this single helper without much indication that a frozen check might be a requirement, particularly since this is expected to be built into the transaction infrastructure. How would we expect a new caller to identify that? Even the current xfs_fs_writable() check seems like it might be unnecessary, given some brief testing. I don't hit the mount path at all on a frozen fs. I'm not sure of the mechanics behind that, but I'm guessing some kind of reference remains on the sb of a frozen fs and a subsequent umount/mount is purely namespace magic. Point being... this appears to be implicit and confusing. IMO, using an _xfs_sync_sb() variant that allocates a nonblocking tp if one isn't provided as a parameter (for example) and using that only in the contexts we know it's Ok to avoid freeze interaction issues might be more clear. Brian > + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > + if (error) { > + xfs_trans_cancel(tp, 0); > + return error; > + } > + > + xfs_log_sb(tp); > + if (wait) > + xfs_trans_set_sync(tp); > + return xfs_trans_commit(tp, 0); > +} > diff --git a/fs/xfs/libxfs/xfs_sb.h b/fs/xfs/libxfs/xfs_sb.h > index c28b3c1..73dff28 100644 > --- a/fs/xfs/libxfs/xfs_sb.h > +++ b/fs/xfs/libxfs/xfs_sb.h > @@ -274,45 +274,6 @@ typedef enum { > XFS_SBS_FIELDCOUNT > } xfs_sb_field_t; > > -/* > - * Mask values, defined based on the xfs_sb_field_t values. > - * Only define the ones we're using. > - */ > -#define XFS_SB_MVAL(x) (1LL << XFS_SBS_ ## x) > -#define XFS_SB_UUID XFS_SB_MVAL(UUID) > -#define XFS_SB_FNAME XFS_SB_MVAL(FNAME) > -#define XFS_SB_ROOTINO XFS_SB_MVAL(ROOTINO) > -#define XFS_SB_RBMINO XFS_SB_MVAL(RBMINO) > -#define XFS_SB_RSUMINO XFS_SB_MVAL(RSUMINO) > -#define XFS_SB_VERSIONNUM XFS_SB_MVAL(VERSIONNUM) > -#define XFS_SB_UQUOTINO XFS_SB_MVAL(UQUOTINO) > -#define XFS_SB_GQUOTINO XFS_SB_MVAL(GQUOTINO) > -#define XFS_SB_QFLAGS XFS_SB_MVAL(QFLAGS) > -#define XFS_SB_SHARED_VN XFS_SB_MVAL(SHARED_VN) > -#define XFS_SB_UNIT XFS_SB_MVAL(UNIT) > -#define XFS_SB_WIDTH XFS_SB_MVAL(WIDTH) > -#define XFS_SB_ICOUNT XFS_SB_MVAL(ICOUNT) > -#define XFS_SB_IFREE XFS_SB_MVAL(IFREE) > -#define XFS_SB_FDBLOCKS XFS_SB_MVAL(FDBLOCKS) > -#define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2) > -#define XFS_SB_BAD_FEATURES2 XFS_SB_MVAL(BAD_FEATURES2) > -#define XFS_SB_FEATURES_COMPAT XFS_SB_MVAL(FEATURES_COMPAT) > -#define XFS_SB_FEATURES_RO_COMPAT XFS_SB_MVAL(FEATURES_RO_COMPAT) > -#define XFS_SB_FEATURES_INCOMPAT XFS_SB_MVAL(FEATURES_INCOMPAT) > -#define XFS_SB_FEATURES_LOG_INCOMPAT XFS_SB_MVAL(FEATURES_LOG_INCOMPAT) > -#define XFS_SB_CRC XFS_SB_MVAL(CRC) > -#define XFS_SB_PQUOTINO XFS_SB_MVAL(PQUOTINO) > -#define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT) > -#define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1) > -#define XFS_SB_MOD_BITS \ > - (XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \ > - XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \ > - XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \ > - XFS_SB_ICOUNT | XFS_SB_IFREE | XFS_SB_FDBLOCKS | XFS_SB_FEATURES2 | \ > - XFS_SB_BAD_FEATURES2 | XFS_SB_FEATURES_COMPAT | \ > - XFS_SB_FEATURES_RO_COMPAT | XFS_SB_FEATURES_INCOMPAT | \ > - XFS_SB_FEATURES_LOG_INCOMPAT | XFS_SB_PQUOTINO) > - > > /* > * Misc. Flags - warning - these will be cleared by xfs_repair unless > @@ -612,7 +573,8 @@ extern void xfs_perag_put(struct xfs_perag *pag); > extern int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t); > > extern void xfs_sb_calc_crc(struct xfs_buf *bp); > -extern void xfs_mod_sb(struct xfs_trans *tp); > +extern void xfs_log_sb(struct xfs_trans *tp); > +extern int xfs_sync_sb(struct xfs_mount *mp, bool wait); > extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp); > extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from); > extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from); > diff --git a/fs/xfs/libxfs/xfs_shared.h b/fs/xfs/libxfs/xfs_shared.h > index 82404da..4ae617a 100644 > --- a/fs/xfs/libxfs/xfs_shared.h > +++ b/fs/xfs/libxfs/xfs_shared.h > @@ -82,7 +82,7 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; > #define XFS_TRANS_ATTR_RM 23 > #define XFS_TRANS_ATTR_FLAG 24 > #define XFS_TRANS_CLEAR_AGI_BUCKET 25 > -#define XFS_TRANS_QM_SBCHANGE 26 > +#define XFS_TRANS_SB_CHANGE 26 > /* > * Dummy entries since we use the transaction type to index into the > * trans_type[] in xlog_recover_print_trans_head() > @@ -95,17 +95,15 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; > #define XFS_TRANS_QM_DQCLUSTER 32 > #define XFS_TRANS_QM_QINOCREATE 33 > #define XFS_TRANS_QM_QUOTAOFF_END 34 > -#define XFS_TRANS_SB_UNIT 35 > -#define XFS_TRANS_FSYNC_TS 36 > -#define XFS_TRANS_GROWFSRT_ALLOC 37 > -#define XFS_TRANS_GROWFSRT_ZERO 38 > -#define XFS_TRANS_GROWFSRT_FREE 39 > -#define XFS_TRANS_SWAPEXT 40 > -#define XFS_TRANS_SB_COUNT 41 > -#define XFS_TRANS_CHECKPOINT 42 > -#define XFS_TRANS_ICREATE 43 > -#define XFS_TRANS_CREATE_TMPFILE 44 > -#define XFS_TRANS_TYPE_MAX 44 > +#define XFS_TRANS_FSYNC_TS 35 > +#define XFS_TRANS_GROWFSRT_ALLOC 36 > +#define XFS_TRANS_GROWFSRT_ZERO 37 > +#define XFS_TRANS_GROWFSRT_FREE 37 > +#define XFS_TRANS_SWAPEXT 39 > +#define XFS_TRANS_CHECKPOINT 40 > +#define XFS_TRANS_ICREATE 41 > +#define XFS_TRANS_CREATE_TMPFILE 42 > +#define XFS_TRANS_TYPE_MAX 43 > /* new transaction types need to be reflected in xfs_logprint(8) */ > > #define XFS_TRANS_TYPES \ > @@ -134,20 +132,18 @@ extern const struct xfs_buf_ops xfs_symlink_buf_ops; > { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \ > { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \ > { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \ > - { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \ > + { XFS_TRANS_SB_CHANGE, "SBCHANGE" }, \ > { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \ > { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \ > { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \ > { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \ > { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \ > { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \ > - { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \ > { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \ > { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \ > { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \ > { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \ > { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \ > - { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \ > { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \ > { XFS_TRANS_DUMMY1, "DUMMY1" }, \ > { XFS_TRANS_DUMMY2, "DUMMY2" }, \ > diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c > index f2bda7c..7c42e2c 100644 > --- a/fs/xfs/libxfs/xfs_trans_resv.c > +++ b/fs/xfs/libxfs/xfs_trans_resv.c > @@ -718,17 +718,6 @@ xfs_calc_clear_agi_bucket_reservation( > } > > /* > - * Clearing the quotaflags in the superblock. > - * the super block for changing quota flags: sector size > - */ > -STATIC uint > -xfs_calc_qm_sbchange_reservation( > - struct xfs_mount *mp) > -{ > - return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize); > -} > - > -/* > * Adjusting quota limits. > * the xfs_disk_dquot_t: sizeof(struct xfs_disk_dquot) > */ > @@ -866,9 +855,6 @@ xfs_trans_resv_calc( > * The following transactions are logged in logical format with > * a default log count. > */ > - resp->tr_qm_sbchange.tr_logres = xfs_calc_qm_sbchange_reservation(mp); > - resp->tr_qm_sbchange.tr_logcount = XFS_DEFAULT_LOG_COUNT; > - > resp->tr_qm_setqlim.tr_logres = xfs_calc_qm_setqlim_reservation(mp); > resp->tr_qm_setqlim.tr_logcount = XFS_DEFAULT_LOG_COUNT; > > diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h > index 1097d14..2d5bdfc 100644 > --- a/fs/xfs/libxfs/xfs_trans_resv.h > +++ b/fs/xfs/libxfs/xfs_trans_resv.h > @@ -56,7 +56,6 @@ struct xfs_trans_resv { > struct xfs_trans_res tr_growrtalloc; /* grow realtime allocations */ > struct xfs_trans_res tr_growrtzero; /* grow realtime zeroing */ > struct xfs_trans_res tr_growrtfree; /* grow realtime freeing */ > - struct xfs_trans_res tr_qm_sbchange; /* change quota flags */ > struct xfs_trans_res tr_qm_setqlim; /* adjust quota limits */ > struct xfs_trans_res tr_qm_dqalloc; /* allocate quota on disk */ > struct xfs_trans_res tr_qm_quotaoff; /* turn quota off */ > diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c > index 2c44e0b..126b4b3 100644 > --- a/fs/xfs/xfs_fsops.c > +++ b/fs/xfs/xfs_fsops.c > @@ -763,35 +763,6 @@ out: > return 0; > } > > -/* > - * Dump a transaction into the log that contains no real change. This is needed > - * to be able to make the log dirty or stamp the current tail LSN into the log > - * during the covering operation. > - * > - * We cannot use an inode here for this - that will push dirty state back up > - * into the VFS and then periodic inode flushing will prevent log covering from > - * making progress. Hence we log a field in the superblock instead and use a > - * synchronous transaction to ensure the superblock is immediately unpinned > - * and can be written back. > - */ > -int > -xfs_fs_log_dummy( > - xfs_mount_t *mp) > -{ > - xfs_trans_t *tp; > - int error; > - > - tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - xfs_mod_sb(tp); > - xfs_trans_set_sync(tp); > - return xfs_trans_commit(tp, 0); > -} > - > int > xfs_fs_goingdown( > xfs_mount_t *mp, > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index ca4fd5b..8eaa8f5 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -1292,9 +1292,20 @@ xfs_log_worker( > struct xfs_mount *mp = log->l_mp; > > /* dgc: errors ignored - not fatal and nowhere to report them */ > - if (xfs_log_need_covered(mp)) > - xfs_fs_log_dummy(mp); > - else > + if (xfs_log_need_covered(mp)) { > + /* > + * Dump a transaction into the log that contains no real change. > + * This is needed stamp the current tail LSN into the log during > + * the covering operation. > + * > + * We cannot use an inode here for this - that will push dirty > + * state back up into the VFS and then periodic inode flushing > + * will prevent log covering from making progress. Hence we > + * synchronously log the superblock instead to ensure the > + * superblock is immediately unpinned and can be written back. > + */ > + xfs_sync_sb(mp, true); > + } else > xfs_log_force(mp, 0); > > /* start pushing all the metadata that is currently dirty */ > diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c > index 592e169..af4e01f 100644 > --- a/fs/xfs/xfs_mount.c > +++ b/fs/xfs/xfs_mount.c > @@ -419,11 +419,11 @@ xfs_update_alignment(xfs_mount_t *mp) > if (xfs_sb_version_hasdalign(sbp)) { > if (sbp->sb_unit != mp->m_dalign) { > sbp->sb_unit = mp->m_dalign; > - mp->m_update_flags |= XFS_SB_UNIT; > + mp->m_update_sb = true; > } > if (sbp->sb_width != mp->m_swidth) { > sbp->sb_width = mp->m_swidth; > - mp->m_update_flags |= XFS_SB_WIDTH; > + mp->m_update_sb = true; > } > } else { > xfs_warn(mp, > @@ -591,38 +591,19 @@ int > xfs_mount_reset_sbqflags( > struct xfs_mount *mp) > { > - int error; > - struct xfs_trans *tp; > - > mp->m_qflags = 0; > > - /* > - * It is OK to look at sb_qflags here in mount path, > - * without m_sb_lock. > - */ > + /* It is OK to look at sb_qflags in the mount path without m_sb_lock. */ > if (mp->m_sb.sb_qflags == 0) > return 0; > spin_lock(&mp->m_sb_lock); > mp->m_sb.sb_qflags = 0; > spin_unlock(&mp->m_sb_lock); > > - /* > - * If the fs is readonly, let the incore superblock run > - * with quotas off but don't flush the update out to disk > - */ > - if (mp->m_flags & XFS_MOUNT_RDONLY) > + if (!xfs_fs_writable(mp)) > return 0; > > - tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - xfs_alert(mp, "%s: Superblock update failed!", __func__); > - return error; > - } > - > - xfs_mod_sb(tp); > - return xfs_trans_commit(tp, 0); > + return xfs_sync_sb(mp, false); > } > > __uint64_t > @@ -686,7 +667,7 @@ xfs_mountfs( > xfs_warn(mp, "correcting sb_features alignment problem"); > sbp->sb_features2 |= sbp->sb_bad_features2; > sbp->sb_bad_features2 = sbp->sb_features2; > - mp->m_update_flags |= XFS_SB_FEATURES2 | XFS_SB_BAD_FEATURES2; > + mp->m_update_sb = true; > > /* > * Re-check for ATTR2 in case it was found in bad_features2 > @@ -700,17 +681,17 @@ xfs_mountfs( > if (xfs_sb_version_hasattr2(&mp->m_sb) && > (mp->m_flags & XFS_MOUNT_NOATTR2)) { > xfs_sb_version_removeattr2(&mp->m_sb); > - mp->m_update_flags |= XFS_SB_FEATURES2; > + mp->m_update_sb = true; > > /* update sb_versionnum for the clearing of the morebits */ > if (!sbp->sb_features2) > - mp->m_update_flags |= XFS_SB_VERSIONNUM; > + mp->m_update_sb = true; > } > > /* always use v2 inodes by default now */ > if (!(mp->m_sb.sb_versionnum & XFS_SB_VERSION_NLINKBIT)) { > mp->m_sb.sb_versionnum |= XFS_SB_VERSION_NLINKBIT; > - mp->m_update_flags |= XFS_SB_VERSIONNUM; > + mp->m_update_sb = true; > } > > /* > @@ -904,8 +885,8 @@ xfs_mountfs( > * the next remount into writeable mode. Otherwise we would never > * perform the update e.g. for the root filesystem. > */ > - if (mp->m_update_flags && !(mp->m_flags & XFS_MOUNT_RDONLY)) { > - error = xfs_mount_log_sb(mp); > + if (mp->m_update_sb && !(mp->m_flags & XFS_MOUNT_RDONLY)) { > + error = xfs_sync_sb(mp, false); > if (error) { > xfs_warn(mp, "failed to write sb changes"); > goto out_rtunmount; > @@ -1100,9 +1081,6 @@ xfs_fs_writable(xfs_mount_t *mp) > int > xfs_log_sbcount(xfs_mount_t *mp) > { > - xfs_trans_t *tp; > - int error; > - > if (!xfs_fs_writable(mp)) > return 0; > > @@ -1115,17 +1093,7 @@ xfs_log_sbcount(xfs_mount_t *mp) > if (!xfs_sb_version_haslazysbcount(&mp->m_sb)) > return 0; > > - tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_COUNT, KM_SLEEP); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - > - xfs_mod_sb(tp); > - xfs_trans_set_sync(tp); > - error = xfs_trans_commit(tp, 0); > - return error; > + return xfs_sync_sb(mp, true); > } > > /* > @@ -1419,28 +1387,6 @@ xfs_freesb( > } > > /* > - * Used to log changes to the superblock unit and width fields which could > - * be altered by the mount options, as well as any potential sb_features2 > - * fixup. Only the first superblock is updated. > - */ > -int > -xfs_mount_log_sb( > - xfs_mount_t *mp) > -{ > - xfs_trans_t *tp; > - int error; > - > - tp = xfs_trans_alloc(mp, XFS_TRANS_SB_UNIT); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - xfs_mod_sb(tp); > - return xfs_trans_commit(tp, 0); > -} > - > -/* > * If the underlying (data/log/rt) device is readonly, there are some > * operations that cannot proceed. > */ > diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h > index 1ae9f56..40e72e3 100644 > --- a/fs/xfs/xfs_mount.h > +++ b/fs/xfs/xfs_mount.h > @@ -162,8 +162,7 @@ typedef struct xfs_mount { > struct delayed_work m_reclaim_work; /* background inode reclaim */ > struct delayed_work m_eofblocks_work; /* background eof blocks > trimming */ > - __int64_t m_update_flags; /* sb flags we need to update > - on the next remount,rw */ > + bool m_update_sb; /* sb needs update in mount */ > int64_t m_low_space[XFS_LOWSP_MAX]; > /* low free space thresholds */ > struct xfs_kobj m_kobj; > diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c > index 170f951..37486c1 100644 > --- a/fs/xfs/xfs_qm.c > +++ b/fs/xfs/xfs_qm.c > @@ -793,7 +793,7 @@ xfs_qm_qino_alloc( > else > mp->m_sb.sb_pquotino = (*ip)->i_ino; > spin_unlock(&mp->m_sb_lock); > - xfs_mod_sb(tp); > + xfs_log_sb(tp); > > if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { > xfs_alert(mp, "%s failed (error %d)!", __func__, error); > @@ -1446,7 +1446,7 @@ xfs_qm_mount_quotas( > spin_unlock(&mp->m_sb_lock); > > if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { > - if (xfs_qm_write_sb_changes(mp)) { > + if (xfs_sync_sb(mp, false)) { > /* > * We could only have been turning quotas off. > * We aren't in very good shape actually because > @@ -1575,29 +1575,6 @@ xfs_qm_dqfree_one( > xfs_qm_dqdestroy(dqp); > } > > -/* > - * Start a transaction and write the incore superblock changes to > - * disk. flags parameter indicates which fields have changed. > - */ > -int > -xfs_qm_write_sb_changes( > - struct xfs_mount *mp) > -{ > - xfs_trans_t *tp; > - int error; > - > - tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); > - error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); > - if (error) { > - xfs_trans_cancel(tp, 0); > - return error; > - } > - > - xfs_mod_sb(tp); > - return xfs_trans_commit(tp, 0); > -} > - > - > /* --------------- utility functions for vnodeops ---------------- */ > > > diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c > index 45f28f1..d558306 100644 > --- a/fs/xfs/xfs_qm_syscalls.c > +++ b/fs/xfs/xfs_qm_syscalls.c > @@ -93,7 +93,7 @@ xfs_qm_scall_quotaoff( > mutex_unlock(&q->qi_quotaofflock); > > /* XXX what to do if error ? Revert back to old vals incore ? */ > - return xfs_qm_write_sb_changes(mp); > + return xfs_sync_sb(mp, false); > } > > dqtype = 0; > @@ -370,7 +370,8 @@ xfs_qm_scall_quotaon( > if ((qf & flags) == flags) > return -EEXIST; > > - if ((error = xfs_qm_write_sb_changes(mp))) > + error = xfs_sync_sb(mp, false); > + if (error) > return error; > /* > * If we aren't trying to switch on quota enforcement, we are done. > @@ -795,7 +796,7 @@ xfs_qm_log_quotaoff( > mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; > spin_unlock(&mp->m_sb_lock); > > - xfs_mod_sb(tp); > + xfs_log_sb(tp); > > /* > * We have to make sure that the transaction is secure on disk before we > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c > index 8aa9eb4..1c52726 100644 > --- a/fs/xfs/xfs_super.c > +++ b/fs/xfs/xfs_super.c > @@ -1249,13 +1249,13 @@ xfs_fs_remount( > * If this is the first remount to writeable state we > * might have some superblock changes to update. > */ > - if (mp->m_update_flags) { > - error = xfs_mount_log_sb(mp); > + if (mp->m_update_sb) { > + error = xfs_sync_sb(mp, false); > if (error) { > xfs_warn(mp, "failed to write sb changes"); > return error; > } > - mp->m_update_flags = 0; > + mp->m_update_sb = false; > } > > /* > @@ -1285,8 +1285,9 @@ xfs_fs_remount( > > /* > * Second stage of a freeze. The data is already frozen so we only > - * need to take care of the metadata. Once that's done write a dummy > - * record to dirty the log in case of a crash while frozen. > + * need to take care of the metadata. Once that's done sync the superblock > + * to the log to dirty it in case of a crash while frozen. This ensures that we > + * will recover the unlinked inode lists on the next mount. > */ > STATIC int > xfs_fs_freeze( > @@ -1296,7 +1297,7 @@ xfs_fs_freeze( > > xfs_save_resvblks(mp); > xfs_quiesce_attr(mp); > - return xfs_fs_log_dummy(mp); > + return xfs_sync_sb(mp, true); > } > > STATIC int > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Fri Aug 1 09:59:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D44A57F54 for ; Fri, 1 Aug 2014 09:59:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id C19C4304067 for ; Fri, 1 Aug 2014 07:59:23 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cb6c555dab770001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id vE2ysIRnQD699UT1 for ; Fri, 01 Aug 2014 07:59:22 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 2599D6CC1C13; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 0/6] xfsprogs: fix resource leaks Date: Fri, 1 Aug 2014 09:59:13 -0500 X-ASG-Orig-Subj: [PATCH 0/6] xfsprogs: fix resource leaks Message-Id: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is the result of getting bored while on "vacation: ;) It knocks out all coverity-reported resource leaks, eliminating 16 reported defects. Thanks, -Eric From sandeen@sandeen.net Fri Aug 1 09:59:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E3F627F56 for ; Fri, 1 Aug 2014 09:59:23 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C19EA8F8081 for ; Fri, 1 Aug 2014 07:59:23 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cbb02d86b28e0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id BjV2QovJXtGYtDbT for ; Fri, 01 Aug 2014 07:59:23 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 73F516CC1C18; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 5/6] xfs_io: fix leaks in parent_list() Date: Fri, 1 Aug 2014 09:59:18 -0500 X-ASG-Orig-Subj: [PATCH 5/6] xfs_io: fix leaks in parent_list() Message-Id: <1406905159-12415-6-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1406905159-12415-1-git-send-email-sandeen@redhat.com> References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- parent_list() has instances where a handle is leaked, both by going out of scope, and on error paths. Signed-off-by: Eric Sandeen --- io/parent.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-) diff --git a/io/parent.c b/io/parent.c index 56e126d..0313119 100644 --- a/io/parent.c +++ b/io/parent.c @@ -293,7 +293,7 @@ print_parent_entry(parent_t *parent, int fullpath) static int parent_list(int fullpath) { - void *handlep; + void *handlep = NULL; size_t handlen; int error, i; int retval = 1; @@ -313,6 +313,7 @@ parent_list(int fullpath) progname, path, strerror(errno)); goto error; } + free_handle(fshandle, fshlen); } if (path_to_handle(path, &handlep, &handlen) != 0) { @@ -325,7 +326,7 @@ parent_list(int fullpath) if (!parentbuf) { fprintf(stderr, _("%s: unable to allocate parent buffer: %s\n"), progname, strerror(errno)); - return 1; + goto error; } if (fullpath) { @@ -365,6 +366,7 @@ parent_list(int fullpath) retval = 0; error: + free(handlep); free(parentbuf); return retval; } -- 1.7.1 From sandeen@sandeen.net Fri Aug 1 09:59:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EA8BB7F57 for ; Fri, 1 Aug 2014 09:59:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D94778F807A for ; Fri, 1 Aug 2014 07:59:23 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cb6c555dab780001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id T9B1mcDpzxqQwGl1 for ; Fri, 01 Aug 2014 07:59:23 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 80E776CC1C19; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 6/6] xfs_db: free flist on error in write_struct() Date: Fri, 1 Aug 2014 09:59:19 -0500 X-ASG-Orig-Subj: [PATCH 6/6] xfs_db: free flist on error in write_struct() Message-Id: <1406905159-12415-7-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1406905159-12415-1-git-send-email-sandeen@redhat.com> References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0249, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 2.00 BSF_SC0_MV0249 Custom rule MV0249 One error path in write_struct() wasn't freeing the flist_t *fl which was allocated, so it leaks. Signed-off-by: Eric Sandeen --- db/write.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/db/write.c b/db/write.c index 0157a44..a0f14f4 100644 --- a/db/write.c +++ b/db/write.c @@ -652,6 +652,7 @@ write_struct( buf = convert_arg(argv[1], bit_length); if (!buf) { dbprintf(_("unable to convert value '%s'.\n"), argv[1]); + flist_free(fl); return; } -- 1.7.1 From sandeen@sandeen.net Fri Aug 1 09:59:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F11367F58 for ; Fri, 1 Aug 2014 09:59:23 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id DECD78F8089 for ; Fri, 1 Aug 2014 07:59:23 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cbb02d83b28d0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id AB3g992LHLcpQrHx for ; Fri, 01 Aug 2014 07:59:22 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 55A8E6CC1C16; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 3/6] xfs_fsr: free handlep in fsrfs Date: Fri, 1 Aug 2014 09:59:16 -0500 X-ASG-Orig-Subj: [PATCH 3/6] xfs_fsr: free handlep in fsrfs Message-Id: <1406905159-12415-4-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1406905159-12415-1-git-send-email-sandeen@redhat.com> References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0249, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 2.00 BSF_SC0_MV0249 Custom rule MV0249 We leaked the fshandlep in both error returns and normal function exit. Signed-off-by: Eric Sandeen --- fsr/xfs_fsr.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index 752d2db..580604c 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -702,6 +702,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) if ((fsfd = open(mntdir, O_RDONLY)) < 0) { fsrprintf(_("unable to open: %s: %s\n"), mntdir, strerror( errno )); + free(fshandlep); return -1; } @@ -709,6 +710,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) fsrprintf(_("Skipping %s: could not get XFS geometry\n"), mntdir); close(fsfd); + free(fshandlep); return -1; } @@ -774,6 +776,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) out0: tmp_close(mntdir); close(fsfd); + free(fshandlep); return 0; } -- 1.7.1 From sandeen@sandeen.net Fri Aug 1 09:59:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0ABEF7F59 for ; Fri, 1 Aug 2014 09:59:24 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DECBD8F8087 for ; Fri, 1 Aug 2014 07:59:23 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cb6c555cab770001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id AaYn0icRcb7CeThx for ; Fri, 01 Aug 2014 07:59:22 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 357946CC1C14; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 1/6] xfs_io: free fshandlep in parent_check() Date: Fri, 1 Aug 2014 09:59:14 -0500 X-ASG-Orig-Subj: [PATCH 1/6] xfs_io: free fshandlep in parent_check() Message-Id: <1406905159-12415-2-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1406905159-12415-1-git-send-email-sandeen@redhat.com> References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0249, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 2.00 BSF_SC0_MV0249 Custom rule MV0249 The allocated fshandle wasn't freed in either normal exit or error paths. Do this, and consolidate cleanup into an out: target. Signed-off-by: Eric Sandeen --- io/parent.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/io/parent.c b/io/parent.c index ca989e9..56e126d 100644 --- a/io/parent.c +++ b/io/parent.c @@ -258,9 +258,8 @@ parent_check(void) if (!bstatbuf || !parentbuf) { fprintf(stderr, _("unable to allocate buffers: %s\n"), strerror(errno)); - free(bstatbuf); - free(parentbuf); - return 1; + err_status = 1; + goto out; } if (do_bulkstat(parentbuf, &parentbuf_size, bstatbuf, fsfd, fshandlep) != 0) @@ -272,8 +271,10 @@ parent_check(void) printf(_("succeeded checking %llu inodes\n"), (unsigned long long) inodes_checked); +out: free(bstatbuf); free(parentbuf); + free(fshandlep); return err_status; } -- 1.7.1 From sandeen@sandeen.net Fri Aug 1 09:59:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E23BC7F55 for ; Fri, 1 Aug 2014 09:59:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id C1BA48F8084 for ; Fri, 1 Aug 2014 07:59:23 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cb6c555eab780001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id BIb2PNDe9MOCSeeu for ; Fri, 01 Aug 2014 07:59:22 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 6590B6CC1C17; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 4/6] libhandle: Fix handle leak in path_to_fshandle error paths Date: Fri, 1 Aug 2014 09:59:17 -0500 X-ASG-Orig-Subj: [PATCH 4/6] libhandle: Fix handle leak in path_to_fshandle error paths Message-Id: <1406905159-12415-5-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1406905159-12415-1-git-send-email-sandeen@redhat.com> References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- path_to_fshandle calls obj_to_handle, which potentially allocates a handle, but the handle isn't freed on a subsequent error path. Signed-off-by: Eric Sandeen --- libhandle/handle.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/libhandle/handle.c b/libhandle/handle.c index 9f81483..3c1395a 100644 --- a/libhandle/handle.c +++ b/libhandle/handle.c @@ -97,6 +97,7 @@ path_to_fshandle( /* new filesystem. add it to the cache */ fdhp = malloc(sizeof(struct fdhash)); if (fdhp == NULL) { + free(*fshanp); close(fd); errno = ENOMEM; return -1; -- 1.7.1 From sandeen@sandeen.net Fri Aug 1 09:59:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9558B7F54 for ; Fri, 1 Aug 2014 09:59:24 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2B200AC006 for ; Fri, 1 Aug 2014 07:59:24 -0700 (PDT) X-ASG-Debug-ID: 1406905162-04cb6c555fab780001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id zDau82bNwKjszAz3 for ; Fri, 01 Aug 2014 07:59:22 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: by sandeen.net (Postfix, from userid 500) id 473376CC1C15; Fri, 1 Aug 2014 09:59:22 -0500 (CDT) From: Eric Sandeen To: xfs@oss.sgi.com Subject: [PATCH 2/6] xfs_fsr: fix leaks & catch error in fsrfile() Date: Fri, 1 Aug 2014 09:59:15 -0500 X-ASG-Orig-Subj: [PATCH 2/6] xfs_fsr: fix leaks & catch error in fsrfile() Message-Id: <1406905159-12415-3-git-send-email-sandeen@redhat.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1406905159-12415-1-git-send-email-sandeen@redhat.com> References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406905162 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- The allocated fshandlep leaks on most error paths; restructure with an out: target that does all necessary freeing, and initialize filehandles to -1 so that we know whether they need to be closed on the error path. While we're at it, if gettmpname() fails, we still return 0 for an error, because error is initialized to 0 and only set otherwise by fsrfile_common. So if gettmpname() fails, we return success from the function even though we did no work. Fix that as well by initializing error to -1. Signed-off-by: Eric Sandeen --- fsr/xfs_fsr.c | 28 ++++++++++++++-------------- 1 files changed, 14 insertions(+), 14 deletions(-) diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c index 48629fd..752d2db 100644 --- a/fsr/xfs_fsr.c +++ b/fsr/xfs_fsr.c @@ -809,15 +809,15 @@ fsrfile(char *fname, xfs_ino_t ino) { xfs_bstat_t statbuf; jdm_fshandle_t *fshandlep; - int fd, fsfd; - int error = 0; + int fd = -1, fsfd = -1; + int error = -1; char *tname; fshandlep = jdm_getfshandle(getparent (fname) ); - if (! fshandlep) { + if (!fshandlep) { fsrprintf(_("unable to construct sys handle for %s: %s\n"), fname, strerror(errno)); - return -1; + goto out; } /* @@ -828,39 +828,39 @@ fsrfile(char *fname, xfs_ino_t ino) if (fsfd < 0) { fsrprintf(_("unable to open sys handle for %s: %s\n"), fname, strerror(errno)); - return -1; + goto out; } if ((xfs_bulkstat_single(fsfd, &ino, &statbuf)) < 0) { fsrprintf(_("unable to get bstat on %s: %s\n"), fname, strerror(errno)); - close(fsfd); - return -1; + goto out; } fd = jdm_open(fshandlep, &statbuf, O_RDWR|O_DIRECT); if (fd < 0) { fsrprintf(_("unable to open handle %s: %s\n"), fname, strerror(errno)); - close(fsfd); - return -1; + goto out; } /* Get the fs geometry */ if (xfs_getgeom(fsfd, &fsgeom) < 0 ) { fsrprintf(_("Unable to get geom on fs for: %s\n"), fname); - close(fsfd); - return -1; + goto out; } - close(fsfd); - tname = gettmpname(fname); if (tname) error = fsrfile_common(fname, tname, NULL, fd, &statbuf); - close(fd); +out: + if (fsfd >= 0) + close(fsfd); + if (fd >= 0) + close(fd); + free(fshandlep); return error; } -- 1.7.1 From sandeen@redhat.com Fri Aug 1 10:11:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 36AC87F50 for ; Fri, 1 Aug 2014 10:11:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 16A1F30405F for ; Fri, 1 Aug 2014 08:11:09 -0700 (PDT) X-ASG-Debug-ID: 1406905868-04cbb02d86b31a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id EubJ1rkM3EG72z7G (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 08:11:09 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s71FB8Md022779 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 1 Aug 2014 11:11:08 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s71FB7GQ000950 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Fri, 1 Aug 2014 11:11:07 -0400 Message-ID: <53DBAE0B.6020000@redhat.com> Date: Fri, 01 Aug 2014 10:11:07 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfs: avoid double free on xlog_recover_commit_trans error X-Enigmail-Version: 1.6 X-ASG-Orig-Subj: [PATCH] xfs: avoid double free on xlog_recover_commit_trans error Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1406905868 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xlog_recover_process_data() frees the transaction on any error out of the oh_flags switch statement, but in the XLOG_COMMIT_TRANS / xlog_recover_commit_trans() case, the transaction has already been freed in xlog_recover_commit_trans() before the error is returned. Avoid this by only freeing the transaction in xlog_recover_commit_trans() if no error will be returned. (Coverity spotted this) Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 981af0f..e634ffd 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3514,9 +3514,11 @@ out: if (!list_empty(&done_list)) list_splice_init(&done_list, &trans->r_itemq); - xlog_recover_free_trans(trans); - error2 = xfs_buf_delwri_submit(&buffer_list); + /* caller will free trans on error */ + if (!error && !error2) + xlog_recover_free_trans(trans); + return error ? error : error2; } From noreply@release.debian.org Fri Aug 1 11:39:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1ABD07F51 for ; Fri, 1 Aug 2014 11:39:30 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0943A30405F for ; Fri, 1 Aug 2014 09:39:29 -0700 (PDT) X-ASG-Debug-ID: 1406911165-04cbb02d86b71e0001-NocioJ Received: from picconi.debian.org (picconi.debian.org [5.153.231.3]) by cuda.sgi.com with ESMTP id AFpjtOZ9UvVHeEEV (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Fri, 01 Aug 2014 09:39:26 -0700 (PDT) X-Barracuda-Envelope-From: noreply@release.debian.org X-Barracuda-Apparent-Source-IP: 5.153.231.3 Received: from mailly.debian.org ([2001:41b8:202:deb:6564:a62:52c3:4b72]) from C=NA,ST=NA,L=Ankh Morpork,O=Debian SMTP,OU=Debian SMTP CA,CN=mailly.debian.org,EMAIL=hostmaster@mailly.debian.org (verified) by picconi.debian.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1XDFrY-0001nI-Gd for xfsprogs@packages.debian.org; Fri, 01 Aug 2014 16:39:24 +0000 Received: from franck.debian.org ([138.16.160.12]) from C=NA,ST=NA,L=Ankh Morpork,O=Debian SMTP,OU=Debian SMTP CA,CN=franck.debian.org,EMAIL=hostmaster@franck.debian.org (verified) by mailly.debian.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1XDFrV-0007uK-7x; Fri, 01 Aug 2014 16:39:21 +0000 Received: from release by franck.debian.org with local (Exim 4.80) (envelope-from ) id 1XDFrT-00017p-Et; Fri, 01 Aug 2014 16:39:19 +0000 From: Debian testing watch Precedence: bulk X-Trille: 0.120315.1711 Subject: xfsprogs 3.2.1 MIGRATED to testing X-Testing-Watch-Package: xfsprogs X-ASG-Orig-Subj: xfsprogs 3.2.1 MIGRATED to testing X-Testing-Watch-Version: 3.2.1 To: xfsprogs@packages.debian.org Message-Id: Sender: Release Managers Date: Fri, 01 Aug 2014 16:39:19 +0000 Delivered-To: xfsprogs@packages.debian.org X-Barracuda-Connect: picconi.debian.org[5.153.231.3] X-Barracuda-Start-Time: 1406911165 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8038 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header FYI: The status of the xfsprogs source package in Debian's testing distribution has changed. Previous version: 3.2.0 Current version: 3.2.1 -- This email is automatically generated once a day. As the installation of new packages into testing happens multiple times a day you will receive later changes on the next day. See https://release.debian.org/testing-watch/ for more information. From david@fromorbit.com Fri Aug 1 22:19:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id EE70B7F51 for ; Fri, 1 Aug 2014 22:19:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8B26EAC005 for ; Fri, 1 Aug 2014 20:19:54 -0700 (PDT) X-ASG-Debug-ID: 1406949589-04bdf03d45d9050001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id y7M9aZ5ih2T9fPgB for ; Fri, 01 Aug 2014 20:19:49 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtIJADpY3FN5LKl0PGdsb2JhbABagw2BKYcvpyEBAQEBAQEGpQYBgQMXBQEBAQE4NoQDAQEFOhwjEAgDDgcDCSUPBSUDBxoTiEHIDhcYhWSJUAeESwWbeYt6jDwrLw Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail06.adl6.internode.on.net with ESMTP; 02 Aug 2014 12:49:48 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XDPr1-0003HG-Ly; Sat, 02 Aug 2014 13:19:31 +1000 Date: Sat, 2 Aug 2014 13:19:31 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: flush both inodes in xfs_swap_extents Message-ID: <20140802031931.GS20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: flush both inodes in xfs_swap_extents References: <1406787128-11897-1-git-send-email-david@fromorbit.com> <1406787128-11897-3-git-send-email-david@fromorbit.com> <20140801124401.GA3582@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140801124401.GA3582@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1406949589 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8056 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 01, 2014 at 08:44:02AM -0400, Brian Foster wrote: > On Thu, Jul 31, 2014 at 04:12:08PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > We need to treat both inodes identically from a page cache point of > > view when prepareing them for extent swapping. We don't do this > > right now - we assume that one of the inodes empty, because that's > > what xfs_fsr currently does. Remove this assumption from the code. > > > > While factoring out the flushing and related checks, move the > > transactions reservation to immeidately after the flushes so that we > > don't need to pick up and then drop the ilock to do the transaction > > reservation. There are no issues with aborting the transaction it if > > the checks fail before we join the inodes to the transaction and > > dirty them, so this is a safe change to make. > > > > Signed-off-by: Dave Chinner > > --- > > Both of these looked fine to me, but I couldn't apply this one to > for-next or master... It's actually in my working branch, which means it's based on 3.16-rc5 + random-outside-xfs-patches + for-next + verifier fixes + sb discombobulation and then this patch set. I didn't check that it applied directly against for-next - do you want me to rebase and resend it? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 1 22:20:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1D22F7F51 for ; Fri, 1 Aug 2014 22:20:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9F506AC00A for ; Fri, 1 Aug 2014 20:20:10 -0700 (PDT) X-ASG-Debug-ID: 1406949607-04cbb02d85cffd0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id OtHlioWmDBjdomSk for ; Fri, 01 Aug 2014 20:20:08 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtIJADpY3FN5LKl0PGdsb2JhbABagw2BKYcvpyEBAQEBAQEGpQYBgQMXBQEBAQE4NoQDAQEFOhwjEAgDDgcDCSUPBSUDBxoTiEHIDhcYhWSJUAeESwWbeZg2Ky8 Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail06.adl6.internode.on.net with ESMTP; 02 Aug 2014 12:50:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XDPra-0003HP-FL; Sat, 02 Aug 2014 13:20:06 +1000 Date: Sat, 2 Aug 2014 13:20:06 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/4] xfs: dquot recovery needs verifiers Message-ID: <20140802032006.GT20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: dquot recovery needs verifiers References: <1406768509-32556-1-git-send-email-david@fromorbit.com> <1406768509-32556-5-git-send-email-david@fromorbit.com> <20140801143023.GD26455@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140801143023.GD26455@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1406949608 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8056 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 01, 2014 at 07:30:23AM -0700, Christoph Hellwig wrote: > On Thu, Jul 31, 2014 at 11:01:49AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > dquot recovery should add verifiers to the dquot buffers that it > > recovers changes into. Unfortunately, it doesn't attached the > > verifiers to the buffers in a consistent manner. For example, > > xlog_recover_dquot_pass2() reads dquot buffers without a verifier > > and then writes it without ever having attached a verifier to the > > buffer. > > > > Further, dquot buffer recovery may write a dquot buffer that has not > > been modified, or indeed, shoul dbe written because quotas are not > > enabled and hence changes to the buffer were not replayed. In this > > case, we again write buffers without verifiers attached because that > > doesn't happen until after the buffer changes have been replayed. > > > > Signed-off-by: Dave Chinner > > The xlog_recover_do_reg_buffer look fine to me, but what's the rationale > for removing the xfs_dqcheck call? It's done by the verifier. Cheers, Dave. -- Dave Chinner david@fromorbit.com From bounces@plexpr.tk Fri Aug 1 22:26:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6AD337F5A for ; Fri, 1 Aug 2014 22:26:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 550AB8F8039 for ; Fri, 1 Aug 2014 20:26:19 -0700 (PDT) X-ASG-Debug-ID: 1406949976-04cbb02d85d0270001-NocioJ Received: from coro3.isol-servers.net (london189.startdedicated.net [62.75.252.189]) by cuda.sgi.com with ESMTP id I8KexNmt1c6TuoQ3 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 01 Aug 2014 20:26:17 -0700 (PDT) X-Barracuda-Envelope-From: bounces@plexpr.tk X-Barracuda-Apparent-Source-IP: 62.75.252.189 Received: by coro3.isol-servers.net (Postfix, from userid 0) id 4DEF1DD2ED0; 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relay3.corp.sgi.com (Postfix) with ESMTP id 20DB8AC002 for ; Sat, 2 Aug 2014 04:24:19 -0700 (PDT) X-ASG-Debug-ID: 1406978655-04cbb02d84e1aa0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id FeNN8W37nGdS5mF1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 02 Aug 2014 04:24:15 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s72BO7qJ029453 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 2 Aug 2014 07:24:07 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s72BO7FU018060; Sat, 2 Aug 2014 07:24:07 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 51C6412577C; Sat, 2 Aug 2014 07:24:06 -0400 (EDT) Date: Sat, 2 Aug 2014 07:24:06 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: flush both inodes in xfs_swap_extents Message-ID: <20140802112404.GA36014@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: flush both inodes in xfs_swap_extents References: <1406787128-11897-1-git-send-email-david@fromorbit.com> <1406787128-11897-3-git-send-email-david@fromorbit.com> <20140801124401.GA3582@laptop.bfoster> <20140802031931.GS20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140802031931.GS20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1406978655 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Aug 02, 2014 at 01:19:31PM +1000, Dave Chinner wrote: > On Fri, Aug 01, 2014 at 08:44:02AM -0400, Brian Foster wrote: > > On Thu, Jul 31, 2014 at 04:12:08PM +1000, Dave Chinner wrote: > > > From: Dave Chinner > > > > > > We need to treat both inodes identically from a page cache point of > > > view when prepareing them for extent swapping. We don't do this > > > right now - we assume that one of the inodes empty, because that's > > > what xfs_fsr currently does. Remove this assumption from the code. > > > > > > While factoring out the flushing and related checks, move the > > > transactions reservation to immeidately after the flushes so that we > > > don't need to pick up and then drop the ilock to do the transaction > > > reservation. There are no issues with aborting the transaction it if > > > the checks fail before we join the inodes to the transaction and > > > dirty them, so this is a safe change to make. > > > > > > Signed-off-by: Dave Chinner > > > --- > > > > Both of these looked fine to me, but I couldn't apply this one to > > for-next or master... > > It's actually in my working branch, which means it's based on > 3.16-rc5 + random-outside-xfs-patches + for-next + verifier fixes + > sb discombobulation and then this patch set. I didn't check that it > applied directly against for-next - do you want me to rebase and > resend it? > Ok, no worries. I was just trying to compile test and verify that nothing was unexpected with the patch as posted. I'm good as long we get some lead team for testing and whatnot when this gets merged to a dev. branch. :) Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From info@info.com Sat Aug 2 09:14:40 2014 Return-Path: X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7C03A7F55 for ; Sat, 2 Aug 2014 09:14:40 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B469D304048 for ; Sat, 2 Aug 2014 07:14:36 -0700 (PDT) X-ASG-Debug-ID: 1406988867-04bdf03d44f4920001-NocioJ Received: from mail.giniandjony.com (webmail.giniandjony.com [119.226.129.5]) by cuda.sgi.com with ESMTP id UlJQbe1OfAt8bkaj for ; Sat, 02 Aug 2014 07:14:28 -0700 (PDT) X-Barracuda-Envelope-From: info@info.com X-Barracuda-Apparent-Source-IP: 119.226.129.5 Received: from giniandjony.com (localhost [127.0.0.1]) by mail.giniandjony.com (Postfix-outgoing) with ESMTP id F193729FAE for ; Sat, 2 Aug 2014 19:50:02 +0530 (IST) Received: (qmail 27070 invoked by uid 65205); 2 Aug 2014 14:20:02 -0000 Received: from 115.242.27.252 by gnjXFmail (envelope-from , uid 0) with qmail-scanner-1.25 (clamscan: 0.60. 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ZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZm ZmZmZmZmZmZmZmZmZmZmZmZmZg0KZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmY1MjAw NmYwMDZmMDA3NDAwMjAwMDQ1MDA2ZTAwNzQwMDcyMDA3OTAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDE2MDAwNTAwZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZWM2OWQ5ODg4YjhiM2Q0 Yzg1OWVhZjZjZDE1OGJlMGYwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDIzDQpmY2NlZmZhNGNm MDFmZWZmZmZmZjAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwZmZmZmZmZmZm ZmZmZmZmZmZmZmZmZmZmMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDANCjAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMA0KMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwZmZmZmZm ZmZmZmZmZmZmZmZmZmZmZmZmMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMDAwMDAwDQowMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAw MDAwMTA1MDAwMDAwMDAwMDAwfX0= --===============2021110225==-- From sandeen@sandeen.net Sat Aug 2 11:37:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C1AB57F54 for ; Sat, 2 Aug 2014 11:37:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A145A304043 for ; Sat, 2 Aug 2014 09:37:10 -0700 (PDT) X-ASG-Debug-ID: 1406997427-04cb6c555ce7290001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 7SwzCDNHx1lWKZGM for ; Sat, 02 Aug 2014 09:37:08 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 9BC89612F31A; Sat, 2 Aug 2014 11:37:07 -0500 (CDT) Message-ID: <53DD13B5.5050000@sandeen.net> Date: Sat, 02 Aug 2014 11:37:09 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: avoid double free on xlog_recover_commit_trans error References: <53DBAE0B.6020000@redhat.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: avoid double free on xlog_recover_commit_trans error In-Reply-To: <53DBAE0B.6020000@redhat.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1406997427 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0249, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8062 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 2.00 BSF_SC0_MV0249 Custom rule MV0249 On 8/1/14, 10:11 AM, Eric Sandeen wrote: > xlog_recover_process_data() frees the transaction on > any error out of the oh_flags switch statement, but > in the XLOG_COMMIT_TRANS / xlog_recover_commit_trans() case, > the transaction has already been freed in > xlog_recover_commit_trans() before the error is returned. > > Avoid this by only freeing the transaction in > xlog_recover_commit_trans() if no error will be returned. > > (Coverity spotted this) Ok, I see that Mark already sent this (thanks Mark, sorry for not seeing / remembering) and he was scolded for not thinking hard enough about the problem. I guess I'm not thinking hard enough either... Sorry 'bout that. -Eric > Signed-off-by: Eric Sandeen > --- > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 981af0f..e634ffd 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -3514,9 +3514,11 @@ out: > if (!list_empty(&done_list)) > list_splice_init(&done_list, &trans->r_itemq); > > - xlog_recover_free_trans(trans); > - > error2 = xfs_buf_delwri_submit(&buffer_list); > + /* caller will free trans on error */ > + if (!error && !error2) > + xlog_recover_free_trans(trans); > + > return error ? error : error2; > } > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From info@rockpoolitdecisionmakers.com Sat Aug 2 18:56:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE, T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2DEDF7F51 for ; Sat, 2 Aug 2014 18:56:51 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id A11A4AC006 for ; Sat, 2 Aug 2014 16:56:50 -0700 (PDT) X-ASG-Debug-ID: 1407023804-04cbb02d84f9fc0001-NocioJ Received: from outmail148064.authsmtp.co.uk (outmail148064.authsmtp.co.uk [62.13.148.64]) by cuda.sgi.com with ESMTP id 4tpj1OiGRwkEcgKA for ; Sat, 02 Aug 2014 16:56:45 -0700 (PDT) X-Barracuda-Envelope-From: info@rockpoolitdecisionmakers.com X-Barracuda-Apparent-Source-IP: 62.13.148.64 Received: from punt18.authsmtp.com (punt18.authsmtp.com [62.13.128.225]) by punt14.authsmtp.com (8.14.2/8.14.2) with ESMTP id s72NuiXD022174 for ; Sun, 3 Aug 2014 00:56:44 +0100 (BST) Received: from mail-c237.authsmtp.com (mail-c237.authsmtp.com [62.13.128.237]) by punt18.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s72NuibO066844 for ; Sun, 3 Aug 2014 00:56:44 +0100 (BST) Received: from 176-227-133-86.ip.skylogicnet.com (176-227-133-86.ip.skylogicnet.com [176.227.133.86]) (authenticated bits=0) by mail.authsmtp.com (8.14.2/8.14.2/) with ESMTP id s72NtxWH058978 for ; Sun, 3 Aug 2014 00:56:40 +0100 (BST) Message-Id: <201408022356.s72NtxWH058978@mail.authsmtp.com> From: "IT Decision Makers Database" Subject: IT Decision Makers Database To: "xfs" X-ASG-Orig-Subj: IT Decision Makers Database Content-Type: multipart/alternative; boundary="KSHBoy5NhWpNPXt=_F5DZ9HCoiT2trWnD0" MIME-Version: 1.0 Organization: IT Decision Makers Database Date: Sun, 3 Aug 2014 00:56:40 +0100 X-Server-Quench: a6f750ef-1aa0-11e4-9f74-002590a135d3 X-AuthReport-Spam: If SPAM / abuse - report it at: http://www.authsmtp.com/abuse X-AuthRoute: OCd1ZgoWBVZUSgod IjkDByxYTgIhJwFA DBQCNgpdJl8AVglL KQBRKV9FIFMHbVZC QHhIDA1KAwIsF2N2 dHsUOhpfYktKTwVq Wk1PSFZQWgRvBwID BBkAUxpxaQ1AZ3xz ekYsHXdZIgAyEj59 R0ZdEmVIYGZkYC5O VhZfcgMBJh5LL05F d1F+AXcQaDMAYmdg R1Vubmg4ZG4CJH9D Yz1FAV8ZQF0KGTh0 YhkBEC80VWEMWyw5 JgcrQmFr X-Authentic-SMTP: 61633636323336.1024:706 X-AuthFastPath: 0 (Was 255) X-AuthVirus-Status: No virus detected - but ensure you scan with your own anti-virus system. X-Barracuda-Connect: outmail148064.authsmtp.co.uk[62.13.148.64] X-Barracuda-Start-Time: 1407023804 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8070 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format --KSHBoy5NhWpNPXt=_F5DZ9HCoiT2trWnD0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline =EF=BB=BFIT Decision Makers Database Our IT Decision Makers Database is completely new to the market place = and is exclusively owned and researched. Containing 23,000 IT Decision Makers this database is the most robust = and information packed solution for marketing to UK IT Decision Makers= available. This database is extremely accurate and completely up to date as of Ju= ly 2014. Information included: Company Name, Full Address, Decision Maker Name,= Job Title, Business Description, Turnover, Number of Employees and De= cision Maker Email Address. The database is opted in at decision maker level to receive relevant t= hird party marketing communication via email, telephone, fax or direct= mail.=20 This database is currently reduced on our website to =C2=A3399 instead= of the usual =C2=A3599. This will remain in place for the first five= purchases after which normal pricing will resume. Website: rockpoolmarketing (dot) com You can contact us on 0113 871 5004 or reply to this email. We also h= ave live chat on our website. Many thanks Rockpool Marketing Unsubscribe by email --KSHBoy5NhWpNPXt=_F5DZ9HCoiT2trWnD0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline =EF=BB=BF<= HEAD>

IT De= cision Makers Database

Our I= T Decision Makers Database is completely new to the market place and i= s exclusively owned and researched.

Containing 23,000 IT Decision Makers this database is the = most robust and information packed solution for marketing to UK IT Dec= ision Makers available.

Th= is database is extremely accurate and completely up to date as of July= 2014.

Information include= d: Company Name, Full Address, Decision Maker Name, Job Title, Busines= s Description, Turnover, Number of Employees and Decision Maker Email = Address.

The database is o= pted in at decision maker level to receive relevant third party market= ing communication via email, telephone, fax or direct mail. 

This database is currently reduced on our website to =C2=A3399 inste= ad of the usual =C2=A3599.  This will remain in place for the first five purchases after which= normal pricing will resume.

Website: rockpoolmarketing (dot) com

You can contact us on 0113 871 5004 or reply to this email.  We also have live chat on our w= ebsite.

Many thanks

Rockpool Marketing

Unsubscribe by email

--KSHBoy5NhWpNPXt=_F5DZ9HCoiT2trWnD0-- From david@fromorbit.com Sat Aug 2 19:09:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EFC867F53 for ; Sat, 2 Aug 2014 19:09:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C1ACC8F8037 for ; Sat, 2 Aug 2014 17:09:47 -0700 (PDT) X-ASG-Debug-ID: 1407024584-04bdf03d43107190001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id b4oA7o4Vb8SC7Y0n for ; Sat, 02 Aug 2014 17:09:45 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmsJAIB93VN5LKl0PGdsb2JhbABagw1SV65EDAEBAQEBAQadPIFdhW8BgQUXBQEBAQE4NoN8BwEBBScTHCMQCAMVAgEJJQ8FJQMHDA4ThUmCeA7GLhcYhWSHQIFDTQeESwWcBYt8jEMrLwGBBA Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail05.adl6.internode.on.net with ESMTP; 03 Aug 2014 09:37:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XDjKL-0005RT-KT; Sun, 03 Aug 2014 10:07:05 +1000 Date: Sun, 3 Aug 2014 10:07:05 +1000 From: Dave Chinner To: Jeff Liu Cc: "xfs@oss.sgi.com" Subject: Re: [PATCH v3 00/10] xfs_ioc_bulkstat code refactoring and consolidation Message-ID: <20140803000705.GU20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v3 00/10] xfs_ioc_bulkstat code refactoring and consolidation References: <538D92B6.5050402@oracle.com> <20140729232748.GI26465@dastard> <53D9F67F.9060609@oracle.com> <53DB2F08.2090703@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53DB2F08.2090703@oracle.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407024585 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8070 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 01, 2014 at 02:09:12PM +0800, Jeff Liu wrote: > > On 07/31/2014 15:55 PM, Jeff Liu wrote: > > Hi Dave, > > > > On 07/30/2014 07:27 AM, Dave Chinner wrote: > >> On Tue, Jun 03, 2014 at 05:17:42PM +0800, Jeff Liu wrote: > >>> Hi folk, > >>> > >>> This is the revised patches for xfs_ioc_bulkstat consolidation and code > >>> refactoring. As per Christoph's comments, I'm not include the per AG > >>> inumber patch in this series given that I don't actually introduce the > >>> relevant inumbers interface now. Similar to that reason, I also dropped > >>> the per AG bulkstat patch, it would be included in parallel quota check > >>> series. > >>> > >>> > >>> v3->v2: > >>> - one major bug fix is at xfs_bulkstat_ag_ichunk() regarding the user buffer > >>> pointer operations, it should be defined as a pointer-to-pointer since it > >>> would be updated inside xfs_bulkstat_ag_ichunk(). > >>> > >>> - separate xfs_inumber consolidate patch into two patches, the first one > >>> fix the formater function return value and consolidate the codes, another > >>> one does the actual logic changes for better error handling. > >>> > >>> - Add a separate patch to get rid of the redundant user buffer count > >>> checks at xfs_bulkstat() > >>> > >>> - fixed agino calculation issue at xfs_bulkstat_grab_ichunk(). > >>> > >>> v2: http://oss.sgi.com/archives/xfs/2014-04/msg00554.html > >>> v1: http://oss.sgi.com/archives/xfs/2013-12/msg00901.html > >>> > >>> > >>> Any comments are welcome! > >> > >> Hi Jeff, I ported this to the current dev tree based on the > >> xfs-libxfs-restructure branch, and I keep seeing fsstress failing > >> with memory corruption after random bulkstat ioctls. I see regular > >> failures with generic/013, generic/068, xfs/167 and the other > >> fstress tests also randomly fail. The typical failure is glibc > >> detected memory heap corruption on freeing the bulkstat structure > >> after the ioctl: > >> > >> generic/068 42s ...*** Error in `./ltp/fsstress': double free or corruption (!prev): 0x00007f0224000b70 *** > >> ======= Backtrace: ========= > > > > Sorry for my late response and thanks for help porting this patch series. > > > > Now I can reproduce this issue frequently with generic/013, will try to fix > > it ASAP. > > Hi Dave, > > Could you please check the patch below for this issue? > > > From: Jie Liu > Subject: xfs: always updating acp elements at xfs_bulkstat_ag_ichunk > > After processing the inodes in chunk, we should always updating the > last inode number and the left user buffer info no matter anything > wrong while formatting an inode to the user buffer. Otherwise, the > related info might be updated improperly at xfs_bulkstat() for the > next round of inode processing. > > Signed-off-by: Jie Liu > --- > fs/xfs/xfs_itable.c | 8 +++----- > 1 file changed, 3 insertions(+), 5 deletions(-) > > diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c > index 9959a05..f71be9c 100644 > --- a/fs/xfs/xfs_itable.c > +++ b/fs/xfs/xfs_itable.c > @@ -328,11 +328,9 @@ xfs_bulkstat_ag_ichunk( > lastino = ino; > } > > - if (!error) { > - acp->ac_lastino = lastino; > - acp->ac_ubleft = ubleft; > - acp->ac_ubelem = ubelem; > - } > + acp->ac_lastino = lastino; > + acp->ac_ubleft = ubleft; > + acp->ac_ubelem = ubelem; Yes, that looks like it fixes the issues I'm seeing here. I'll fold this into the patch that introduces this code (the last patch, if I'm not mistaken) so we don't have a point in a bisection where bulkstat is busted. I'll run it through some more testing and if everything goes well I'll push it into for-next early in the week. Thanks for the quick turn-around and finding the problem for me, Jeff! Cheers, Dave. -- Dave Chinner david@fromorbit.com From ben@decadent.org.uk Sat Aug 2 19:50:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B16497F54 for ; Sat, 2 Aug 2014 19:50:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 908F98F8037 for ; Sat, 2 Aug 2014 17:50:06 -0700 (PDT) X-ASG-Debug-ID: 1407026999-04cb6c555cf5f70001-NocioJ Received: from shadbolt.e.decadent.org.uk (shadbolt.e.decadent.org.uk [88.96.1.126]) by cuda.sgi.com with ESMTP id RsmMfJegyMMssfIG (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Sat, 02 Aug 2014 17:50:00 -0700 (PDT) X-Barracuda-Envelope-From: ben@decadent.org.uk X-Barracuda-Apparent-Source-IP: 88.96.1.126 Received: from deadeye.wl.decadent.org.uk ([192.168.4.249] helo=deadeye) by shadbolt.decadent.org.uk with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1XDjzp-0005Se-TH; Sun, 03 Aug 2014 01:49:57 +0100 Received: from ben by deadeye with local (Exim 4.83) (envelope-from ) id 1XDjzk-0001UY-N9; Sun, 03 Aug 2014 01:49:52 +0100 Message-ID: <1407026987.30258.60.camel@deadeye.wl.decadent.org.uk> Subject: Re: [PATCH][v3.2.y] xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near From: Ben Hutchings X-ASG-Orig-Subj: Re: [PATCH][v3.2.y] xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near To: Joseph Salisbury Cc: david@fromorbit.com, xfs@oss.sgi.com, "stable@vger.kernel.org" , linux-kernel@vger.kernel.org Date: Sun, 03 Aug 2014 01:49:47 +0100 In-Reply-To: <53D91CBC.1000901@canonical.com> References: <53D91CBC.1000901@canonical.com> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-2k+LEOsAS2On6GRrQsko" X-Mailer: Evolution 3.12.2-1+b1 Mime-Version: 1.0 X-SA-Exim-Connect-IP: 192.168.4.249 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false X-Barracuda-Connect: shadbolt.e.decadent.org.uk[88.96.1.126] X-Barracuda-Start-Time: 1407027000 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8071 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --=-2k+LEOsAS2On6GRrQsko Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, 2014-07-30 at 12:26 -0400, Joseph Salisbury wrote: > Hello, > =20 > Please consider including mainline commit > e3a746f5aab71f2dd0a83116772922fb37ae29d6 in the next v3.2.y release. It > was included in the mainline tree as of v3.5. It has been tested and > confirmed > to resolve http://bugs.launchpad.net/bugs/1327360 . >=20 >=20 > commit e3a746f5aab71f2dd0a83116772922fb37ae29d6 > Author: Dave Chinner > Date: Thu Jul 12 07:40:42 2012 +1000 >=20 > xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near I assume I'm supposed to apply this first: commit 76d095388b040229ea1aad7dea45be0cfa20f589 Author: Dave Chinner Date: Tue Jun 12 14:20:26 2012 +1000 xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near So I've queued up both of these. Ben. --=20 Ben Hutchings Kids! Bringing about Armageddon can be dangerous. 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=0Aamj --b1_1ce7a6282235e4b6c0f35717903536b6-- From dgc@oss.sgi.com Sun Aug 3 20:25:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id B66437F47; Sun, 3 Aug 2014 20:25:56 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-bulkstat-refactor, created. xfs-for-linus-3.16-rc1-13116-g1e773c4 X-Git-Refname: refs/heads/xfs-bulkstat-refactor X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: 1e773c4989d2dfe08332b4c18f7e1d7ad633015c Message-Id: <20140804012556.B66437F47@oss.sgi.com> Date: Sun, 3 Aug 2014 20:25:56 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, xfs-bulkstat-refactor has been created at 1e773c4989d2dfe08332b4c18f7e1d7ad633015c (commit) - Log ----------------------------------------------------------------- commit 1e773c4989d2dfe08332b4c18f7e1d7ad633015c Author: Jie Liu Date: Mon Aug 4 11:22:31 2014 +1000 xfs: introduce xfs_bulkstat_ag_ichunk Introduce xfs_bulkstat_ag_ichunk() to process inodes in chunk with a pointer to a formatter function that will iget the inode and fill in the appropriate structure. Refactor xfs_bulkstat() with it. Signed-off-by: Jie Liu Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Sun Aug 3 20:26:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 436A07F54; Sun, 3 Aug 2014 20:26:38 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.16-rc5-36-g61cd578 X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: c3dd0d14e34aa901af41b1737dd5e78c60e71ef2 X-Git-Newrev: 61cd57814b16d1e76e0ec53259c9cb255ef789a4 Message-Id: <20140804012638.436A07F54@oss.sgi.com> Date: Sun, 3 Aug 2014 20:26:38 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, for-next has been updated 61cd578 Merge branch 'xfs-bulkstat-refactor' into for-next 1e773c4 xfs: introduce xfs_bulkstat_ag_ichunk f3d1e58 xfs: introduce xfs_bulkstat_grab_ichunk 4b8fdfe xfs: introduce xfs_bulkstat_ichunk_ra d4c2734 xfs: fix error handling at xfs_bulkstat 296dfd7 xfs: remove redundant user buffer count checks at xfs_bulkstat c7cb51d xfs: fix error handling at xfs_inumbers 549fa00 xfs: consolidate xfs_inumbers d716f8e xfs: remove xfs_bulkstat_single 8fe6577 xfs: remove redundant stat assignment in xfs_bulkstat_one_int from c3dd0d14e34aa901af41b1737dd5e78c60e71ef2 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 61cd57814b16d1e76e0ec53259c9cb255ef789a4 Merge: c3dd0d1 1e773c4 Author: Dave Chinner Date: Mon Aug 4 11:24:57 2014 +1000 Merge branch 'xfs-bulkstat-refactor' into for-next ----------------------------------------------------------------------- Summary of changes: fs/xfs/xfs_ioctl.c | 4 +- fs/xfs/xfs_ioctl32.c | 2 +- fs/xfs/xfs_itable.c | 569 ++++++++++++++++++++++++--------------------------- fs/xfs/xfs_itable.h | 23 ++- 4 files changed, 283 insertions(+), 315 deletions(-) hooks/post-receive -- XFS development tree From david@fromorbit.com Sun Aug 3 21:20:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B6CBF7F55 for ; Sun, 3 Aug 2014 21:20:14 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A478C8F8040 for ; Sun, 3 Aug 2014 19:20:11 -0700 (PDT) X-ASG-Debug-ID: 1407118808-04cbb02d83118d50001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id HLSjFeOMLWEkwEz8 for ; Sun, 03 Aug 2014 19:20:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmULALHs3lN5LKl0PGdsb2JhbABbgw2BKYInhQinJQEBAQEBAQalCAGBFBcFAQEBATg2hAQBBTocIxAIAw4KCSUPBSUDBxoTiEHFehcYhWSJUAeESwWcBYt8jEMrLw Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail05.adl6.internode.on.net with ESMTP; 04 Aug 2014 11:50:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XE7sb-00088y-Vz; Mon, 04 Aug 2014 12:20:06 +1000 Date: Mon, 4 Aug 2014 12:20:05 +1000 From: Dave Chinner To: Christoph Hellwig Cc: Eric Sandeen , xfs-oss Subject: Re: Is jdm_delete_filehandle part of a public API? Message-ID: <20140804022005.GV20518@dastard> X-ASG-Orig-Subj: Re: Is jdm_delete_filehandle part of a public API? References: <53D7DA7F.2040706@redhat.com> <20140801135305.GA31894@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140801135305.GA31894@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407118808 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8100 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 01, 2014 at 06:53:05AM -0700, Christoph Hellwig wrote: > Talking about libhandle: this one has been a bit bitrotted. Maybe it's > a good time to move everything over to the kernel by handle syscalls > and deprecated it? First you need to make the kernel by-handle interfaces handle the sae functionality as the XFS by-handle ioctls. 1. O_NOCMTIME doesn't exist, and so there's no way to do invisible IO on files. 2. Can we construct VFs filehandles in userspace from bulkstat information (dump, xfs_fsr and others rely on this capability)? 3. The kernel by-handle interfaces cannot manipulate attributes at all (i.e. attr-list, attr-multi functionality). So until the VFS by-handle interfaces can do these things, we can't change libhandle over to use the newer kernel interfaces. I'm also pretty sure the incompatible handle format would mean big problems if someone were to be storing file handles in userspace and they upgrade their version of libhandle. i.e. such a library implementation change is not forwards or backwards compatible with existing applications, but bumping the major shared library version should solve that problem. However, these are all solvable problems. It's definitely a low priority for me to do this, but if you want to do it patches will definitely be accepted ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Sun Aug 3 22:20:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 911387F5E for ; Sun, 3 Aug 2014 22:20:24 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7FE69304048 for ; Sun, 3 Aug 2014 20:20:24 -0700 (PDT) X-ASG-Debug-ID: 1407122418-04cb6c555c112ce0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id dIwKTPnzHuuZ4zEZ for ; Sun, 03 Aug 2014 20:20:19 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ap8IAPf63lN5LKl0PGdsb2JhbABbgw2BKYInrC4BAQEBAQalCAGBFRcFAQEBATg2hAQBBScTHCMQCBEHDCUPBSUDBxoTiEHFchcYhWSJRQsHhEsFnAWLfIxDKy8 Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail05.adl6.internode.on.net with ESMTP; 04 Aug 2014 12:50:18 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XE8oq-0008Gc-VZ; Mon, 04 Aug 2014 13:20:17 +1000 Date: Mon, 4 Aug 2014 13:20:16 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: [PATCH 3/6 V2] xfs: kill VN_DIRTY() Message-ID: <20140804032016.GW20518@dastard> X-ASG-Orig-Subj: [PATCH 3/6 V2] xfs: kill VN_DIRTY() References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-4-git-send-email-david@fromorbit.com> <20140731171302.GA22173@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140731171302.GA22173@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407122419 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8101 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Only one user and the use of a dirty page cache check is redundant, so just get rid of it. Signed-off-by: Dave Chinner --- fs/xfs/xfs_inode.c | 2 +- fs/xfs/xfs_vnode.h | 2 -- 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 1a5e068..fea3c92 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1635,7 +1635,7 @@ xfs_release( truncated = xfs_iflags_test_and_clear(ip, XFS_ITRUNCATED); if (truncated) { xfs_iflags_clear(ip, XFS_IDIRTY_RELEASE); - if (VN_DIRTY(VFS_I(ip)) && ip->i_delayed_blks > 0) { + if (ip->i_delayed_blks > 0) { error = filemap_flush(VFS_I(ip)->i_mapping); if (error) return error; diff --git a/fs/xfs/xfs_vnode.h b/fs/xfs/xfs_vnode.h index e8a7738..07b475a 100644 --- a/fs/xfs/xfs_vnode.h +++ b/fs/xfs/xfs_vnode.h @@ -39,8 +39,6 @@ struct attrlist_cursor_kern; */ #define VN_MAPPED(vp) mapping_mapped(vp->i_mapping) #define VN_CACHED(vp) (vp->i_mapping->nrpages) -#define VN_DIRTY(vp) mapping_tagged(vp->i_mapping, \ - PAGECACHE_TAG_DIRTY) #endif /* __XFS_VNODE_H__ */ From dgc@oss.sgi.com Sun Aug 3 23:05:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 630237F63; Sun, 3 Aug 2014 23:05:17 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-sysfs-support, updated. xfs-for-linus-3.16-rc5-14-g6eee897 X-Git-Refname: refs/heads/xfs-sysfs-support X-Git-Reftype: branch X-Git-Oldrev: a087481811bed920eb5eedbb5574b915881adbea X-Git-Newrev: 6eee8972cc1799d3dde3f1e699abf286ed3adbaf Message-Id: <20140804040517.630237F63@oss.sgi.com> Date: Sun, 3 Aug 2014 23:05:17 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, xfs-sysfs-support has been updated 6eee897 xfs: fix coccinelle warnings from a087481811bed920eb5eedbb5574b915881adbea (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 6eee8972cc1799d3dde3f1e699abf286ed3adbaf Author: kbuild test robot Date: Mon Aug 4 13:49:40 2014 +1000 xfs: fix coccinelle warnings Removes unneeded semicolon, introduced by commit a70a4fa5 ("xfs: fix a couple error sequence jumps in xfs_mountfs"): fs/xfs/xfs_mount.c:858:24-25: Unneeded semicolon Generated by: scripts/coccinelle/misc/semicolon.cocci Signed-off-by: Fengguang Wu Reviewed-by: Brian Foster Signed-off-by: Dave Chinner ----------------------------------------------------------------------- Summary of changes: fs/xfs/xfs_mount.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Sun Aug 3 23:05:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 2CFF27F6A; Sun, 3 Aug 2014 23:05:45 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, xfs-misc-fixes-3.17-2, created. xfs-for-linus-3.16-rc1-13119-g4ef897a X-Git-Refname: refs/heads/xfs-misc-fixes-3.17-2 X-Git-Reftype: branch X-Git-Oldrev: 0000000000000000000000000000000000000000 X-Git-Newrev: 4ef897a27543b513351262881660147366c042a1 Message-Id: <20140804040545.2CFF27F6A@oss.sgi.com> Date: Sun, 3 Aug 2014 23:05:43 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, xfs-misc-fixes-3.17-2 has been created at 4ef897a27543b513351262881660147366c042a1 (commit) - Log ----------------------------------------------------------------- commit 4ef897a27543b513351262881660147366c042a1 Author: Dave Chinner Date: Mon Aug 4 13:44:08 2014 +1000 xfs: flush both inodes in xfs_swap_extents We need to treat both inodes identically from a page cache point of view when prepareing them for extent swapping. We don't do this right now - we assume that one of the inodes empty, because that's what xfs_fsr currently does. Remove this assumption from the code. While factoring out the flushing and related checks, move the transactions reservation to immeidately after the flushes so that we don't need to pick up and then drop the ilock to do the transaction reservation. There are no issues with aborting the transaction it if the checks fail before we join the inodes to the transaction and dirty them, so this is a safe change to make. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 812176832169c77b4bacddd01edc3e55340263fd Author: Dave Chinner Date: Mon Aug 4 13:29:32 2014 +1000 xfs: fix swapext ilock deadlock xfs_swap_extents() holds the ilock over a call to filemap_write_and_wait(), which can then try to write data and take the ilock. That causes a self-deadlock. Fix the deadlock and clean up the code by separating the locking appropriately. Add a lockflags variable to track what locks we are holding as we gain and drop them and cleanup the error handling to always use "out_unlock" with the lockflags variable. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit b92cc59f69537f26d5a42e4171ccc864ae4d9383 Author: Dave Chinner Date: Mon Aug 4 13:28:20 2014 +1000 xfs: kill xfs_vnode.h Move the IO flag definitions to xfs_inode.h and kill the header file as it is now empty. Removing the xfs_vnode.h file showed up an implicit header include path: xfs_linux.h -> xfs_vnode.h -> xfs_fs.h And so every xfs header file has been inplicitly been including xfs_fs.h where it is needed or not. Hence the removal of xfs_vnode.h causes all sorts of build issues because BBTOB() and friends are no longer automatically included in the build. This also gets fixed. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit dd8c38bab0d88615e0bdf013e6de3d4345f8cda2 Author: Dave Chinner Date: Mon Aug 4 13:23:35 2014 +1000 xfs: kill VN_MAPPED Only one user, no longer needed. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 2667c6f935d979cea1ab7fa58568fd0fd725525f Author: Dave Chinner Date: Mon Aug 4 13:23:15 2014 +1000 xfs: kill VN_CACHED Only has 2 users, has outlived it's usefulness. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit eac152b4742ec5f1ed04d73d699ae2be3607d56b Author: Dave Chinner Date: Mon Aug 4 13:22:49 2014 +1000 xfs: kill VN_DIRTY() Only one user of the macro and the dirty mapping check is redundant so just get rid of it. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit ad3714b82c631a34724da09a7daa53afcab952fa Author: Dave Chinner Date: Mon Aug 4 12:59:31 2014 +1000 xfs: dquot recovery needs verifiers dquot recovery should add verifiers to the dquot buffers that it recovers changes into. Unfortunately, it doesn't attached the verifiers to the buffers in a consistent manner. For example, xlog_recover_dquot_pass2() reads dquot buffers without a verifier and then writes it without ever having attached a verifier to the buffer. Further, dquot buffer recovery may write a dquot buffer that has not been modified, or indeed, shoul dbe written because quotas are not enabled and hence changes to the buffer were not replayed. In this case, we again write buffers without verifiers attached because that doesn't happen until after the buffer changes have been replayed. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner commit 5fd364fee81a7888af806e42ed8a91c845894f2d Author: Dave Chinner Date: Mon Aug 4 12:43:26 2014 +1000 xfs: quotacheck leaves dquot buffers without verifiers When running xfs/305, I noticed that quotacheck was flushing dquot buffers that did not have the xfs_dquot_buf_ops verifiers attached: XFS (vdb): _xfs_buf_ioapply: no ops on block 0x1dc8/0x1dc8 ffff880052489000: 44 51 01 04 00 00 65 b8 00 00 00 00 00 00 00 00 DQ....e......... ffff880052489010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ffff880052489020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ffff880052489030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ CPU: 1 PID: 2376 Comm: mount Not tainted 3.16.0-rc2-dgc+ #306 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 ffff88006fe38000 ffff88004a0ffae8 ffffffff81cf1cca 0000000000000001 ffff88004a0ffb88 ffffffff814d50ca 000010004a0ffc70 0000000000000000 ffff88006be56dc4 0000000000000021 0000000000001dc8 ffff88007c773d80 Call Trace: [] dump_stack+0x45/0x56 [] _xfs_buf_ioapply+0x3ca/0x3d0 [] ? wake_up_state+0x20/0x20 [] ? xfs_bdstrat_cb+0x55/0xb0 [] xfs_buf_iorequest+0x6b/0xd0 [] xfs_bdstrat_cb+0x55/0xb0 [] __xfs_buf_delwri_submit+0x15b/0x220 [] ? xfs_buf_delwri_submit+0x30/0x90 [] xfs_buf_delwri_submit+0x30/0x90 [] xfs_qm_quotacheck+0x17d/0x3c0 [] xfs_qm_mount_quotas+0x151/0x1e0 [] xfs_mountfs+0x56c/0x7d0 [] xfs_fs_fill_super+0x2c2/0x340 [] mount_bdev+0x194/0x1d0 [] ? xfs_finish_flags+0x170/0x170 [] xfs_fs_mount+0x15/0x20 [] mount_fs+0x39/0x1b0 [] vfs_kern_mount+0x67/0x120 [] do_mount+0x23e/0xad0 [] ? __get_free_pages+0xe/0x50 [] ? copy_mount_options+0x36/0x150 [] SyS_mount+0x83/0xc0 [] tracesys+0xdd/0xe2 This was caused by dquot buffer readahead not attaching a verifier structure to the buffer when readahead was issued, resulting in the followup read of the buffer finding a valid buffer and so not attaching new verifiers to the buffer as part of the read. Also, when a verifier failure occurs, we then read the buffer without verifiers. Attach the verifiers manually after this read so that if the buffer is then written it will be verified that the corruption has been repaired. Further, when flushing a dquot we don't ask for a verifier when reading in the dquot buffer the dquot belongs to. Most of the time this isn't an issue because the buffer is still cached, but when it is not cached it will result in writing the dquot buffer without having the verfier attached. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 67dc288c21064b31a98a53dc64f6b9714b819fd6 Author: Dave Chinner Date: Mon Aug 4 12:43:06 2014 +1000 xfs: ensure verifiers are attached to recovered buffers Crash testing of CRC enabled filesystems has resulted in a number of reports of bad CRCs being detected after the filesystem was mounted. Errors such as the following were being seen: XFS (sdb3): Mounting V5 Filesystem XFS (sdb3): Starting recovery (logdev: internal) XFS (sdb3): Metadata CRC error detected at xfs_agf_read_verify+0x5a/0x100 [xfs], block 0x1 XFS (sdb3): Unmount and run xfs_repair XFS (sdb3): First 64 bytes of corrupted metadata buffer: ffff880136ffd600: 58 41 47 46 00 00 00 01 00 00 00 00 00 0f aa 40 XAGF...........@ ffff880136ffd610: 00 02 6d 53 00 02 77 f8 00 00 00 00 00 00 00 01 ..mS..w......... ffff880136ffd620: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 03 ................ ffff880136ffd630: 00 00 00 04 00 08 81 d0 00 08 81 a7 00 00 00 00 ................ XFS (sdb3): metadata I/O error: block 0x1 ("xfs_trans_read_buf_map") error 74 numblks 1 The errors were typically being seen in AGF, AGI and their related btree block buffers some time after log recovery had run. Often it wasn't until later subsequent mounts that the problem was discovered. The common symptom was a buffer with the correct contents, but a CRC and an LSN that matched an older version of the contents. Some debug added to _xfs_buf_ioapply() indicated that buffers were being written without verifiers attached to them from log recovery, and Jan Kara isolated the cause to log recovery readahead an dit's interactions with buffers that had a more recent LSN on disk than the transaction being recovered. In this case, the buffer did not get a verifier attached, and os when the second phase of log recovery ran and recovered EFIs and unlinked inodes, the buffers were modified and written without the verifier running. Hence they had up to date contents, but stale LSNs and CRCs. Fix it by attaching verifiers to buffers we skip due to future LSN values so they don't escape into the buffer cache without the correct verifier attached. This patch is based on analysis and a patch from Jan Kara. cc: Reported-by: Jan Kara Reported-by: Fanael Linithien Reported-by: Grozdan Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 400b9d88757c0bfbdfa97014e090ec40a31c1282 Author: Dave Chinner Date: Mon Aug 4 12:42:40 2014 +1000 xfs: catch buffers written without verifiers attached We recently had a bug where buffers were slipping through log recovery without any verifier attached to them. This was resulting in on-disk CRC mismatches for valid data. Add some warning code to catch this occurrence so that we catch such bugs during development rather than not being aware they exist. Note that we cannot do this verification unconditionally as non-CRC filesystems don't always attach verifiers to the buffers being written. e.g. during log recovery we cannot identify all the different types of buffers correctly on non-CRC filesystems, so we can't attach the correct verifiers in all cases and so we don't attach any. Hence we don't want on non-CRC filesystems to avoid spamming the logs with false indications. Signed-off-by: Dave Chinner Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner commit 5ef828c4152726f56751c78ea844f08d2b2a4fa3 Author: Eric Sandeen Date: Mon Aug 4 11:35:44 2014 +1000 xfs: avoid false quotacheck after unclean shutdown The commit 83e782e xfs: Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD added a new function xfs_sb_quota_from_disk() which swaps on-disk XFS_OQUOTA_* flags for in-core XFS_GQUOTA_* and XFS_PQUOTA_* flags after the superblock is read. However, if log recovery is required, the superblock is read again, and the modified in-core flags are re-read from disk, so we have XFS_OQUOTA_* flags in memory again. This causes the XFS_QM_NEED_QUOTACHECK() test to be true, because the XFS_OQUOTA_CHKD is still set, and not XFS_GQUOTA_CHKD or XFS_PQUOTA_CHKD. Change xfs_sb_from_disk to call xfs_sb_quota_from disk and always convert the disk flags to in-memory flags. Add a lower-level function which can be called with "false" to not convert the flags, so that the sb verifier can verify exactly what was on disk, per Brian Foster's suggestion. Reported-by: Cyril B. Signed-off-by: Eric Sandeen commit eedf32bfcace7d8e20cc66757d74fc68f3439ff7 Author: Brian Foster Date: Mon Aug 4 11:35:35 2014 +1000 xfs: fix rounding error of fiemap length parameter The offset and length parameters are converted from bytes to basic blocks by xfs_vn_fiemap(). The BTOBB() converter rounds the value up to the nearest basic block. This leads to unexpected behavior when unaligned offsets are provided to FIEMAP. Fix the conversions of byte values to block values to cover the provided offsets. Round down the start offset to the nearest basic block. Calculate the end offset based on the provided values, round up and calculate length based on the start block offset. Reported-by: Chandan Rajendra Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner ----------------------------------------------------------------------- hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Sun Aug 3 23:10:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 28EF97F6F; Sun, 3 Aug 2014 23:10:14 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.16-rc5-50-g645f985 X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: 61cd57814b16d1e76e0ec53259c9cb255ef789a4 X-Git-Newrev: 645f9857213476407d8ed1b59619fdff7128d3e6 Message-Id: <20140804041014.28EF97F6F@oss.sgi.com> Date: Sun, 3 Aug 2014 23:10:13 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, for-next has been updated discards 61cd57814b16d1e76e0ec53259c9cb255ef789a4 (commit) discards c3dd0d14e34aa901af41b1737dd5e78c60e71ef2 (commit) discards 05e7126eaeca45586282176cdbacf75730182e26 (commit) 645f985 Merge branch 'xfs-misc-fixes-3.17-2' into for-next b076d87 Merge branch 'xfs-bulkstat-refactor' into for-next 4d7eece Merge branch 'xfs-misc-fixes-3.17-1' into for-next e0ac6d4 Merge branch 'xfs-quota-eofblocks-scan' into for-next 6eee897 xfs: fix coccinelle warnings 4ef897a xfs: flush both inodes in xfs_swap_extents 8121768 xfs: fix swapext ilock deadlock b92cc59 xfs: kill xfs_vnode.h dd8c38b xfs: kill VN_MAPPED 2667c6f xfs: kill VN_CACHED eac152b xfs: kill VN_DIRTY() ad3714b xfs: dquot recovery needs verifiers 5fd364f xfs: quotacheck leaves dquot buffers without verifiers 67dc288 xfs: ensure verifiers are attached to recovered buffers 400b9d8 xfs: catch buffers written without verifiers attached 5ef828c xfs: avoid false quotacheck after unclean shutdown eedf32b xfs: fix rounding error of fiemap length parameter from 61cd57814b16d1e76e0ec53259c9cb255ef789a4 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 645f9857213476407d8ed1b59619fdff7128d3e6 Merge: b076d87 4ef897a Author: Dave Chinner Date: Mon Aug 4 13:55:27 2014 +1000 Merge branch 'xfs-misc-fixes-3.17-2' into for-next commit b076d8720d793cde04b75b4941b8774e209649b4 Merge: 4d7eece 1e773c4 Author: Dave Chinner Date: Mon Aug 4 13:54:46 2014 +1000 Merge branch 'xfs-bulkstat-refactor' into for-next commit 4d7eece2c0dad832c5f224629eba3cced3f2d6cd Merge: e0ac6d4 d5cf09b Author: Dave Chinner Date: Mon Aug 4 13:54:14 2014 +1000 Merge branch 'xfs-misc-fixes-3.17-1' into for-next commit e0ac6d45bc52065d388b5aa153b58233af25a429 Merge: 6eee897 f074051 Author: Dave Chinner Date: Mon Aug 4 13:53:47 2014 +1000 Merge branch 'xfs-quota-eofblocks-scan' into for-next ----------------------------------------------------------------------- Summary of changes: fs/xfs/libxfs/xfs_sb.c | 24 ++++++++++-- fs/xfs/xfs_bmap_util.c | 100 +++++++++++++++++++++++------------------------ fs/xfs/xfs_buf.c | 14 +++++++ fs/xfs/xfs_dquot.c | 3 +- fs/xfs/xfs_file.c | 10 ++--- fs/xfs/xfs_inode.c | 2 +- fs/xfs/xfs_inode.h | 10 +++++ fs/xfs/xfs_ioctl.c | 6 +-- fs/xfs/xfs_ioctl32.c | 3 +- fs/xfs/xfs_iops.c | 4 +- fs/xfs/xfs_linux.h | 2 +- fs/xfs/xfs_log.c | 8 +++- fs/xfs/xfs_log_recover.c | 95 +++++++++++++++++++++++++------------------- fs/xfs/xfs_mount.c | 3 +- fs/xfs/xfs_qm.c | 8 +++- fs/xfs/xfs_vnode.h | 46 ---------------------- 16 files changed, 176 insertions(+), 162 deletions(-) delete mode 100644 fs/xfs/xfs_vnode.h hooks/post-receive -- XFS development tree From david@fromorbit.com Mon Aug 4 02:34:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 530DA7F56 for ; Mon, 4 Aug 2014 02:34:53 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 4155B30404E for ; Mon, 4 Aug 2014 00:34:50 -0700 (PDT) X-ASG-Debug-ID: 1407137687-04cb6c555c119160001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id HrkCsRADCv69B2Rg for ; Mon, 04 Aug 2014 00:34:47 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ap8IAAE331N5LKl0PGdsb2JhbABbgw2BKYInrDUBAQEBAQalCAGBFhcFAQEBATg2hAMBAQUnExwjEAgDDgcDCSUPBSUDBxoTiEHEXhcYhWSJA00HhEsFnAWYPysvgQU Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail06.adl6.internode.on.net with ESMTP; 04 Aug 2014 17:04:45 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XECn5-0000a3-Cl; Mon, 04 Aug 2014 17:34:43 +1000 Date: Mon, 4 Aug 2014 17:34:43 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/6] xfs: remove bitfield based superblock updates Message-ID: <20140804073443.GX20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: remove bitfield based superblock updates References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-2-git-send-email-david@fromorbit.com> <20140801143751.GB3582@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140801143751.GB3582@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407137687 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8105 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 01, 2014 at 10:37:51AM -0400, Brian Foster wrote: > On Thu, Jul 31, 2014 at 05:33:10PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > When we log changes to the superblock, we first have to write them > > to the on-disk buffer, and then log that. Right now we have a > > complex bitfield based arrangement to only write the modified field > > to the buffer before we log it. > > > > This used to be necessary as a performance optimisation because we > > logged the superblock buffer in every extent or inode allocation or > > freeing, and so performance was extremely important. We haven't done > > this for years, however, ever since the lazy superblock counters > > pulled the superblock logging out of the transaction commit > > fast path. > > > > Hence we have a bunch of complexity that is not necessary that makes > > writing the in-core superblock to disk much more complex than it > > needs to be. We only need to log the superblock now during > > management operations (e.g. during mount, unmount or quota control > > operations) so it is not a performance critical path anymore. > > > > As such, remove the complex field based logging mechanism and > > replace it with a simple conversion function similar to what we use > > for all other on-disk structures. > > > > This means we always log the entirity of the superblock, but again > > because we rarely modify the superblock this is not an issue for log > > bandwidth or CPU time. Indeed, if we do log the superblock > > frequently, delayed logging will minimise the impact of this > > overhead. ... > > @@ -447,125 +384,119 @@ xfs_sb_from_disk( > > to->sb_lsn = be64_to_cpu(from->sb_lsn); > > } > > > > -static inline void > > +static void > > xfs_sb_quota_to_disk( > > - xfs_dsb_t *to, > > - xfs_sb_t *from, > > - __int64_t *fields) > > + struct xfs_dsb *to, > > + struct xfs_sb *from) > > { > > __uint16_t qflags = from->sb_qflags; > > > > + to->sb_uquotino = cpu_to_be64(from->sb_uquotino); > > + if (xfs_sb_version_has_pquotino(from)) { > > + to->sb_qflags = be16_to_cpu(from->sb_qflags); > > + to->sb_gquotino = cpu_to_be64(from->sb_gquotino); > > + to->sb_pquotino = cpu_to_be64(from->sb_pquotino); > > + return; > > + } > > + > > Ok, so we're inheriting the quota conversion from xfs_sb_to_disk() > unconditionally (as opposed to previously being solely a has_pquotino() > fixup function). Right - that's one of the problems with this function - it modifies some fields and modifies flags for other code to do the right thing. It's kinda confusing to split it up like that rather than have all the quota translation in one place. > > > /* > > - * We need to do these manipilations only if we are working > > - * with an older version of on-disk superblock. > > + * The in-core version of sb_qflags do not have XFS_OQUOTA_* > > + * flags, whereas the on-disk version does. So, convert incore > > + * XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags. > > */ > > - if (xfs_sb_version_has_pquotino(from)) > > - return; > > + qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | > > + XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); > > > > - if (*fields & XFS_SB_QFLAGS) { > > - /* > > - * The in-core version of sb_qflags do not have > > - * XFS_OQUOTA_* flags, whereas the on-disk version > > - * does. So, convert incore XFS_{PG}QUOTA_* flags > > - * to on-disk XFS_OQUOTA_* flags. > > - */ > > - qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD | > > - XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD); > > - > > - if (from->sb_qflags & > > - (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) > > - qflags |= XFS_OQUOTA_ENFD; > > - if (from->sb_qflags & > > - (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) > > - qflags |= XFS_OQUOTA_CHKD; > > - to->sb_qflags = cpu_to_be16(qflags); > > - *fields &= ~XFS_SB_QFLAGS; > > - } > > + if (from->sb_qflags & > > + (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD)) > > + qflags |= XFS_OQUOTA_ENFD; > > + if (from->sb_qflags & > > + (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) > > + qflags |= XFS_OQUOTA_CHKD; > > + to->sb_qflags = cpu_to_be16(qflags); > > > > /* > > - * GQUOTINO and PQUOTINO cannot be used together in versions of > > - * superblock that do not have pquotino. from->sb_flags tells us which > > - * quota is active and should be copied to disk. If neither are active, > > - * make sure we write NULLFSINO to the sb_gquotino field as a quota > > - * inode value of "0" is invalid when the XFS_SB_VERSION_QUOTA feature > > - * bit is set. > > + * GQUOTINO and PQUOTINO cannot be used together in versions > > + * of superblock that do not have pquotino. from->sb_flags > > + * tells us which quota is active and should be copied to > > + * disk. If neither are active, we should NULL the inode. > > * > > - * Note that we don't need to handle the sb_uquotino or sb_pquotino here > > - * as they do not require any translation. Hence the main sb field loop > > - * will write them appropriately from the in-core superblock. > > + * In all cases, the separate pquotino must remain 0 because it > > + * it beyond the "end" of the valid non-pquotino superblock. > > */ > > - if ((*fields & XFS_SB_GQUOTINO) && > > - (from->sb_qflags & XFS_GQUOTA_ACCT)) > > + if (from->sb_qflags & XFS_GQUOTA_ACCT) > > to->sb_gquotino = cpu_to_be64(from->sb_gquotino); > > - else if ((*fields & XFS_SB_PQUOTINO) && > > - (from->sb_qflags & XFS_PQUOTA_ACCT)) > > + else if (from->sb_qflags & XFS_PQUOTA_ACCT) > > to->sb_gquotino = cpu_to_be64(from->sb_pquotino); > > - else { > > - /* > > - * We can't rely on just the fields being logged to tell us > > - * that it is safe to write NULLFSINO - we should only do that > > - * if quotas are not actually enabled. Hence only write > > - * NULLFSINO if both in-core quota inodes are NULL. > > - */ > > - if (from->sb_gquotino == NULLFSINO && > > - from->sb_pquotino == NULLFSINO) > > - to->sb_gquotino = cpu_to_be64(NULLFSINO); > > - } > > + else > > + to->sb_gquotino = cpu_to_be64(NULLFSINO); > > I'll ask since I'm not 100% on the backwards compatibility fixup here... > but this else condition is effectively the same logic as the previous > NULLFSINO checks due to the *QUOTA_ACCT flags checks, yes? If so, the > rest looks fine: *nod*. The in-core NULLFSINO checks were required because we couldn't trust either the superblock quota flags or the modified fields mask to tell us if we needed to convert the gquotino field from zero to NULLFSINO. >From a compatibility POV on older kernels, if usr quota is turned on but not grp/prj then the expected the value iof sb_gquotino is NULLFSINO. If quota is turned off, then either 0 or NULLFSINO are valid values. IOWs, the logic in the absence of the logging field bitmask is much, much simpler: if we don't write a real inode number to the field because quotas are not on then just write NULLFSINO. Clear as mud, huh? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 4 03:09:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6848F7F5E for ; Mon, 4 Aug 2014 03:09:44 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id EC3B0AC001 for ; Mon, 4 Aug 2014 01:09:40 -0700 (PDT) X-ASG-Debug-ID: 1407139774-04cbb02d86121540001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id iy1k4AoHao75XYwd for ; Mon, 04 Aug 2014 01:09:35 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ap8IADo/31N5LKl0PGdsb2JhbABRCoMNgSmCJ6w2AQEBAQEGpQgBgRYXBQEBAQE4NoQDAQEEAScTHCMFCwgDDgcDCSUPBSUDBxoTiDoHxEMXGIVkiHQPTQeESwWcBZg/Ky+BBQ Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail06.adl6.internode.on.net with ESMTP; 04 Aug 2014 17:39:33 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XEDKk-0000ek-Jc; Mon, 04 Aug 2014 18:09:30 +1000 Date: Mon, 4 Aug 2014 18:09:30 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140804080930.GY20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140801143929.GC3582@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407139774 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8106 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 01, 2014 at 10:39:29AM -0400, Brian Foster wrote: > On Thu, Jul 31, 2014 at 05:33:11PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > We now have several superblock loggin functions that are identical > > except for the transaction reservation and whether it shoul dbe a > > synchronous transaction or not. Consolidate these all into a single > > function, a single reserveration and a sync flag and call it > > xfs_sync_sb(). > > > > Also, xfs_mod_sb() is not really a modification function - it's the > > operation of logging the superblock buffer. hence change the name of > > it to reflect this. > > > > Note that we have to change the mp->m_update_flags that are passed > > around at mount time to a boolean simply to indicate a superblock > > update is needed. ..... > > + > > +/* > > + * xfs_sync_sb > > + * > > + * Sync the superblock to disk. > > + * > > + * Note this code can be called during the process of freezing, so > > + * we may need to use the transaction allocator which does not > > + * block when the transaction subsystem is in its frozen state. > > + */ > > +int > > +xfs_sync_sb( > > + struct xfs_mount *mp, > > + bool wait) > > +{ > > + struct xfs_trans *tp; > > + int error; > > + > > + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); > > We're converting some previous calls of xfs_trans_alloc() to the > _xfs_trans_alloc() variant. The only difference is the dropped call to > sb_start_intwrite() and I see that technically we handle that with the > xfs_fs_writeable() check. Writing a change to the superblock is not something that normal operations do. They are something that is typically done as a standalone management operation, and hence the xfs_fs_writeable() check is usually enough. So, the callers are: xfs_fs_log_dummy -> occurs during freeze _xfs_trans_alloc -> no change and xfs_log_sbcount -> occurs during freeze, unmount _xfs_trans_alloc -> no change and xfs_mount_reset_sbqflags -> called only in mount path xfs_fs_writable -> was just a RO check _xfs_trans_alloc -> was xfs_trans_alloc and xfs_mount_log_sb -> called only in mount path _xfs_trans_alloc -> was xfs_trans_alloc and xfs_qm_write_sb_changes -> quota on/off syscalls _xfs_trans_alloc -> was xfs_trans_alloc So the first 4 are effectively unchanged - there can be no racing freeze while we are in the mount path, so the change from xfs_trans_alloc to _xfs_trans_alloc makes no difference at all. Similarly, the change from an open-coded RO check to xfs_fs_writable() makes no difference, either. It's only the last function - xfs_qm_write_sb_changes() - where there is a difference. However, let's walk all the way back up the stack to the syscall quotactl(): sys_quotactl quotactl_block() if (quotactl_cmd_write()) get_super_thawed() which will only proceed with an unfrozen superblock, and it holds the sb->s_umount lock in read mode across the quotactl operation. Hence it will prevent the filesystem from being frozen during quota on/off operations. Hence we don't need or want freeze accounting on those operations because they need to complete before a freeze can be started. > Unless I misunderstand, the sb_start_inwrite() call is what will > block us on internal transaction allocs once the fs is already > frozen. It seems a little dicey to me to offer up this single > helper without much indication that a frozen check might be a > requirement, particularly since this is expected to be built into > the transaction infrastructure. Right, but none of the callers actually are run in a situation where they should block on freezes, either complete or in progress. i.e. there is no requirement for freeze checks - there is the opposite: requirements to avoid freeze checks so the code doesn't deadlock. > How would we expect a new caller to identify that? Same as we always do: by code review. > Even the current xfs_fs_writable() check seems like it might be > unnecessary, given some brief testing. I don't hit the mount path at all > on a frozen fs. xfs_fs_writable() checks more than whether the filesystem is frozen. ;) > I'm not sure of the mechanics behind that, but I'm > guessing some kind of reference remains on the sb of a frozen fs and a > subsequent umount/mount is purely namespace magic. Point being... this > appears to be implicit and confusing. IMO, using an _xfs_sync_sb() > variant that allocates a nonblocking tp if one isn't provided as a > parameter (for example) and using that only in the contexts we know it's > Ok to avoid freeze interaction issues might be more clear. Well, it was pretty clear to me that the code paths were free of freeze interactions. Looking at this - especially the quota on/off paths - I guess it's not as obvious as I thought it was... :/ Cheers, Dave. -- Dave Chinner david@fromorbit.com From alex@zadarastorage.com Mon Aug 4 06:00:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 084AE7F61 for ; Mon, 4 Aug 2014 06:00:17 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9917AAC002 for ; Mon, 4 Aug 2014 04:00:13 -0700 (PDT) X-ASG-Debug-ID: 1407150009-04bdf03d4513e2c0001-NocioJ Received: from mail-wi0-f177.google.com (mail-wi0-f177.google.com [209.85.212.177]) by cuda.sgi.com with ESMTP id 9RjgfqnkWOJzKPrb (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 04 Aug 2014 04:00:10 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.177 Received: by mail-wi0-f177.google.com with SMTP id ho1so4802532wib.4 for ; Mon, 04 Aug 2014 04:00:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=mK3uSX5vJv87v0dEL4SL0NTa1WkycH9lxhDlrS5Fc7o=; b=bz+5lO9ToundgVp7BFM609BorjXaSSU1mu2G1Gj13RERzvf95CxUOm+6yMNjV7L85F FBC827lmmJIeDBZjqmpD38CiHi3h6+rB17bCqrKxEBKBLUteZtp+wcRcSYD7BX5trlbJ xrjnNQAcExQciNf2eHx+2fNG0ioKMfX9olH/e4PS7hCHTAqQJAuCDgwmCi5tz4dUEXYf LlXCuWpxFj1Q5fer4liRBARtG+1SAfQlcavXx9Rc4I6c3/4l5hxlQmVujIDu05o9pZLc YdiOvDNmWOLPXp1seAoLnGlPRP1TQEEb3Ic/S12H9tOqBMK5wHGf8sf1BHPYdOCarvu2 zJkg== X-Gm-Message-State: ALoCoQkeoOZHt9MwoB9L6z2mvYAo8pWgXA4PV1F6/pxKgorw0Mxf6wkPN45dtd0BQ59i0Qnv32w/ X-Received: by 10.180.210.167 with SMTP id mv7mr29234058wic.72.1407150007359; Mon, 04 Aug 2014 04:00:07 -0700 (PDT) Received: from alyakaslap ([212.143.144.103]) by mx.google.com with ESMTPSA id ex2sm39638660wic.24.2014.08.04.04.00.06 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 04 Aug 2014 04:00:06 -0700 (PDT) Message-ID: <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> From: "Alex Lyakas" To: References: <20131219105513.GZ31386@dastard> <8155F3F9D6094F40B4DA71BD561D2DE8@alyakaslap> <20131226230018.GJ20579@dastard> <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> In-Reply-To: <4B2A412C75324EE9880358513C069476@alyakaslap> Subject: use-after-free on log replay failure Date: Mon, 4 Aug 2014 14:00:05 +0300 X-ASG-Orig-Subj: use-after-free on log replay failure MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-wi0-f177.google.com[209.85.212.177] X-Barracuda-Start-Time: 1407150009 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8109 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words Greetings, we had a log replay failure due to some errors that the underlying block device returned: [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 ("xlog_recover_iodone") error 28 numblks 16 [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 [49133.802644] XFS (dm-95): log mount failed and then kernel panicked [1]. Looking at the code, when xfs_mountfs() fails, xfs_fs_fill_super() goes and cleans up and eventually frees the "xfs_mount" structure. But then xfs_buf_iodone_work() can still be delivered through "xfslogd_workqueue", which is static and not per-XFS. But this callback has a pointer to "xfs_mount", and may try to access it as in [1]. Does this analysis sound correct? Kernel is 3.8.13, but looking at the XFS master branch, it might have the same issue. Should we flush this static workqueue before unmounting? Thanks, Alex. [1] [49133.804546] general protection fault: 0000 [#1] SMP [49133.808033] xcbc rmd160 crypto_null af_key xfrm_algo scsi_dh cirrus psmouse ttm drm_kms_helper serio_raw drm i2c_piix4 sysimgblt virtio_balloon sysfillrect syscopyarea nfsd(OF) kvm nfs_acl auth_rpcgss nfs fscache microcode lockd mac_hid sunrpc lp parport floppy ixgbevf(OF) [49133.808033] CPU 2 [49133.808033] Pid: 2907, comm: kworker/2:1H Tainted: GF W O 3.8.13-030813-generic #201305111843 Bochs Bochs [49133.808033] RIP: 0010:[] [] strnlen+0xb/0x30 [49133.808033] RSP: 0018:ffff8801e31c5b08 EFLAGS: 00010086 [49133.808033] RAX: 0000000000000000 RBX: ffffffff81e4e527 RCX: 0000000000000000 [49133.808033] RDX: 640000450008cf9d RSI: ffffffffffffffff RDI: 640000450008cf9d [49133.808033] RBP: ffff8801e31c5b08 R08: 000000000000ffff R09: 000000000000ffff [49133.808033] R10: 0000000000000000 R11: 0000000000000ffe R12: 640000450008cf9d [49133.808033] R13: ffffffff81e4e900 R14: 0000000000000000 R15: 000000000000ffff [49133.808033] FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [49133.808033] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [49133.808033] CR2: 00007fa4a91abd80 CR3: 000000020e783000 CR4: 00000000000006e0 [49133.808033] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [49133.808033] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [49133.808033] Process kworker/2:1H (pid: 2907, threadinfo ffff8801e31c4000, task ffff8802124f45c0) [49133.808033] Stack: [49133.808033] ffff8801e31c5b48 ffffffff81359d8e ffff8801e31c5b28 ffffffff81e4e527 [49133.808033] ffffffffa0636a1e ffff8801e31c5c80 ffffffffa0636a1e ffffffff81e4e900 [49133.808033] ffff8801e31c5bc8 ffffffff8135af89 ffff8801e31c5bc8 ffffffff8105a4e7 [49133.808033] Call Trace: [49133.808033] [] string.isra.4+0x3e/0xd0 [49133.808033] [] vsnprintf+0x219/0x640 [49133.808033] [] ? msg_print_text+0xb7/0x1b0 [49133.808033] [] vscnprintf+0x11/0x30 [49133.808033] [] vprintk_emit+0xc1/0x490 [49133.808033] [] ? vprintk_emit+0x170/0x490 [49133.808033] [] printk+0x61/0x63 [49133.808033] [] __xfs_printk+0x31/0x50 [xfs] [49133.808033] [] xfs_notice+0x53/0x60 [xfs] [49133.808033] [] xfs_do_force_shutdown+0xf5/0x180 [xfs] [49133.808033] [] ? xlog_recover_iodone+0x48/0x70 [xfs] [49133.808033] [] xlog_recover_iodone+0x48/0x70 [xfs] [49133.808033] [] xfs_buf_iodone_work+0x4d/0xa0 [xfs] [49133.808033] [] process_one_work+0x141/0x490 [49133.808033] [] worker_thread+0x168/0x400 [49133.808033] [] ? manage_workers+0x120/0x120 [49133.808033] [] kthread+0xc0/0xd0 [49133.808033] [] ? flush_kthread_worker+0xb0/0xb0 [49133.808033] [] ret_from_fork+0x7c/0xb0 [49133.808033] [] ? flush_kthread_worker+0xb0/0xb0 From bfoster@redhat.com Mon Aug 4 07:48:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AD2427F66 for ; Mon, 4 Aug 2014 07:48:48 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 93C468F8049 for ; Mon, 4 Aug 2014 05:48:48 -0700 (PDT) X-ASG-Debug-ID: 1407156526-04cb6c555d128d70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id HlzneBr0z5w9knMj (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 04 Aug 2014 05:48:47 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s74Cmcmh001004 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 4 Aug 2014 08:48:38 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s74Cmb9G017902; Mon, 4 Aug 2014 08:48:38 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E325012577C; Mon, 4 Aug 2014 08:48:36 -0400 (EDT) Date: Mon, 4 Aug 2014 08:48:36 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140804124836.GA4049@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140804080930.GY20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407156527 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Aug 04, 2014 at 06:09:30PM +1000, Dave Chinner wrote: > On Fri, Aug 01, 2014 at 10:39:29AM -0400, Brian Foster wrote: > > On Thu, Jul 31, 2014 at 05:33:11PM +1000, Dave Chinner wrote: > > > From: Dave Chinner > > > > > > We now have several superblock loggin functions that are identical > > > except for the transaction reservation and whether it shoul dbe a > > > synchronous transaction or not. Consolidate these all into a single > > > function, a single reserveration and a sync flag and call it > > > xfs_sync_sb(). > > > > > > Also, xfs_mod_sb() is not really a modification function - it's the > > > operation of logging the superblock buffer. hence change the name of > > > it to reflect this. > > > > > > Note that we have to change the mp->m_update_flags that are passed > > > around at mount time to a boolean simply to indicate a superblock > > > update is needed. > ..... > > > + > > > +/* > > > + * xfs_sync_sb > > > + * > > > + * Sync the superblock to disk. > > > + * > > > + * Note this code can be called during the process of freezing, so > > > + * we may need to use the transaction allocator which does not > > > + * block when the transaction subsystem is in its frozen state. > > > + */ > > > +int > > > +xfs_sync_sb( > > > + struct xfs_mount *mp, > > > + bool wait) > > > +{ > > > + struct xfs_trans *tp; > > > + int error; > > > + > > > + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); > > > > We're converting some previous calls of xfs_trans_alloc() to the > > _xfs_trans_alloc() variant. The only difference is the dropped call to > > sb_start_intwrite() and I see that technically we handle that with the > > xfs_fs_writeable() check. > > Writing a change to the superblock is not something that normal > operations do. They are something that is typically done as a > standalone management operation, and hence the xfs_fs_writeable() > check is usually enough. > Fair point, an sb modification is something that should stand out. I think the characteristic of the new api is somewhat subtle, however. > So, the callers are: > > xfs_fs_log_dummy -> occurs during freeze > _xfs_trans_alloc -> no change > > and > xfs_log_sbcount -> occurs during freeze, unmount > _xfs_trans_alloc -> no change > > and > xfs_mount_reset_sbqflags -> called only in mount path > xfs_fs_writable -> was just a RO check > _xfs_trans_alloc -> was xfs_trans_alloc > > and > xfs_mount_log_sb -> called only in mount path > _xfs_trans_alloc -> was xfs_trans_alloc > > and > xfs_qm_write_sb_changes -> quota on/off syscalls > _xfs_trans_alloc -> was xfs_trans_alloc > > So the first 4 are effectively unchanged - there can be no racing > freeze while we are in the mount path, so the change from > xfs_trans_alloc to _xfs_trans_alloc makes no difference at all. > Similarly, the change from an open-coded RO check to > xfs_fs_writable() makes no difference, either. > Indeed, there wasn't anything technically wrong with the changes that I could identify. > It's only the last function - xfs_qm_write_sb_changes() - where > there is a difference. However, let's walk all the way back up the > stack to the syscall quotactl(): > > sys_quotactl > quotactl_block() > if (quotactl_cmd_write()) > get_super_thawed() > > which will only proceed with an unfrozen superblock, and it holds > the sb->s_umount lock in read mode across the quotactl operation. > Hence it will prevent the filesystem from being frozen during quota > on/off operations. Hence we don't need or want freeze accounting on > those operations because they need to complete before a freeze can > be started. > I didn't catch that one though. > > Unless I misunderstand, the sb_start_inwrite() call is what will > > block us on internal transaction allocs once the fs is already > > frozen. It seems a little dicey to me to offer up this single > > helper without much indication that a frozen check might be a > > requirement, particularly since this is expected to be built into > > the transaction infrastructure. > > Right, but none of the callers actually are run in a situation where > they should block on freezes, either complete or in progress. i.e. > there is no requirement for freeze checks - there is the opposite: > requirements to avoid freeze checks so the code doesn't deadlock. > Sure, but the codepaths with that requirement were previously explicitly and exclusively using _xfs_trans_alloc(). > > How would we expect a new caller to identify that? > > Same as we always do: by code review. > Fair enough, but what happens if^Wwhen something is missed? :) I think that means we can potentially modify a frozen fs. I'd feel better if we had a BUG_ON() or assert at the very least, but the obvious problem is the couple of contexts we have where we explicitly make a modification as part of the freeze sequence. > > Even the current xfs_fs_writable() check seems like it might be > > unnecessary, given some brief testing. I don't hit the mount path at all > > on a frozen fs. > > xfs_fs_writable() checks more than whether the filesystem is > frozen. ;) > Sure, so there's a new shutdown check before the xfs_trans_commit() that would fail anyways due to already having a shutdown check. ;) > > I'm not sure of the mechanics behind that, but I'm > > guessing some kind of reference remains on the sb of a frozen fs and a > > subsequent umount/mount is purely namespace magic. Point being... this > > appears to be implicit and confusing. IMO, using an _xfs_sync_sb() > > variant that allocates a nonblocking tp if one isn't provided as a > > parameter (for example) and using that only in the contexts we know it's > > Ok to avoid freeze interaction issues might be more clear. > > Well, it was pretty clear to me that the code paths were free of > freeze interactions. Looking at this - especially the quota on/off > paths - I guess it's not as obvious as I thought it was... :/ > My point was more geared towards future use. E.g., we have frozen fs management built into transaction management, which is nice and clean and easy to understand. We have a couple freeze path contexts that require to jump around that interface, which is also fairly straightforward. That is code that probably shouldn't have to change that much, and if it does, chances are you're dealing with some kind of freeze issue and have that context in mind. Now we have a generic superblock logging/sync mechanism that is built on top of the shortcut that's been built in for freeze. Technically that's Ok because sb modifications are special and rare (or already handle freeze blocking), but freeze management just isn't quite as contained as it used to be. An API change probably isn't necessary since it appears that the other uses are all "don't cares" as far as freeze context goes, but IMO the comment ("we may need to use the transaction allocator that doesn't block") could be made a little more explicit and point out that callers are responsible for freeze management. A bug_on() or assert would help, but looking again it appears we already have a warn_on() in _xfs_trans_alloc() that I suspect handles the freeze phases correctly. I didn't notice that before and that should be sufficiently noisy if something is amiss. :) Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From BATV+adb65c0d132a6d6529a6+3998+infradead.org+hch@bombadil.srs.infradead.org Mon Aug 4 08:14:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 586747F69 for ; Mon, 4 Aug 2014 08:14:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 38A308F8039 for ; Mon, 4 Aug 2014 06:14:40 -0700 (PDT) X-ASG-Debug-ID: 1407158078-04cb6c555d12a1c0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id kG9V2ZJmREGGEN7H (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 04 Aug 2014 06:14:38 -0700 (PDT) X-Barracuda-Envelope-From: BATV+adb65c0d132a6d6529a6+3998+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XEI61-000639-RJ; Mon, 04 Aug 2014 13:14:37 +0000 Date: Mon, 4 Aug 2014 06:14:37 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH 3/6 V2] xfs: kill VN_DIRTY() Message-ID: <20140804131437.GA22365@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 3/6 V2] xfs: kill VN_DIRTY() References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-4-git-send-email-david@fromorbit.com> <20140731171302.GA22173@infradead.org> <20140804032016.GW20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140804032016.GW20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1407158078 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8111 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 04, 2014 at 01:20:16PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Only one user and the use of a dirty page cache check is redundant, > so just get rid of it. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From bfoster@redhat.com Mon Aug 4 09:13:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 238147F6C for ; Mon, 4 Aug 2014 09:13:06 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DB8868F8049 for ; Mon, 4 Aug 2014 07:13:05 -0700 (PDT) X-ASG-Debug-ID: 1407161581-04bdf03d44149f70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 6RgcKx8faAKFXGpw (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 04 Aug 2014 07:13:01 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s74ECxAY005250 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 4 Aug 2014 10:13:00 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s74ECwaZ024818; Mon, 4 Aug 2014 10:12:59 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id DF62E12577C; Mon, 4 Aug 2014 10:12:57 -0400 (EDT) Date: Mon, 4 Aug 2014 10:12:57 -0400 From: Brian Foster To: Alex Lyakas Cc: xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140804141257.GB4049@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407161581 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > Greetings, > > we had a log replay failure due to some errors that the underlying block > device returned: > [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > ("xlog_recover_iodone") error 28 numblks 16 > [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > [49133.802644] XFS (dm-95): log mount failed > > and then kernel panicked [1]. > > Looking at the code, when xfs_mountfs() fails, xfs_fs_fill_super() goes and > cleans up and eventually frees the "xfs_mount" structure. But then > xfs_buf_iodone_work() can still be delivered through "xfslogd_workqueue", > which is static and not per-XFS. But this callback has a pointer to > "xfs_mount", and may try to access it as in [1]. Does this analysis sound > correct? Kernel is 3.8.13, but looking at the XFS master branch, it might > have the same issue. > Seems possible... we call xfs_buf_delwri_submit() via log recovery which does an xfs_buf_iowait() on each buffer for synchronous I/O. xfs_buf_iowait() doesn't wait on b_iowait if b_error is set, however. In the callback side, xfs_buf_ioerror() is called before the _xfs_buf_ioend() sequence that calls into the workqueue. Perhaps the error can be detected by the iowait before the xfslogd_workqueue job can run..? > Should we flush this static workqueue before unmounting? > It's not totally clear that fixes the problem since we set b_error on the buffer before we even schedule on the workqueue. Perhaps it depends on the nature of the race. Another option could be to not use the wq on error, but that may or may not be ideal for other contexts besides log recovery. It looks like the bio code always returns error via the callback and the xlog_recover_iodone() handler does call back into ioend, presumably to do the io completion. It might not be appropriate to remove the b_error bypass in xfs_buf_iowait() as we have ioerror() callers on the buffer that can occur before I/O submission, but I wonder if it could be made conditional for this particular case. That would be an interesting experiment at least to see if it fixes this problem. Brian > Thanks, > Alex. > > > [1] > [49133.804546] general protection fault: 0000 [#1] SMP > [49133.808033] xcbc rmd160 crypto_null af_key xfrm_algo scsi_dh cirrus > psmouse ttm drm_kms_helper serio_raw drm i2c_piix4 sysimgblt virtio_balloon > sysfillrect syscopyarea nfsd(OF) kvm nfs_acl auth_rpcgss nfs fscache > microcode lockd mac_hid sunrpc lp parport floppy ixgbevf(OF) > [49133.808033] CPU 2 > [49133.808033] Pid: 2907, comm: kworker/2:1H Tainted: GF W O > 3.8.13-030813-generic #201305111843 Bochs Bochs > [49133.808033] RIP: 0010:[] [] > strnlen+0xb/0x30 > [49133.808033] RSP: 0018:ffff8801e31c5b08 EFLAGS: 00010086 > [49133.808033] RAX: 0000000000000000 RBX: ffffffff81e4e527 RCX: > 0000000000000000 > [49133.808033] RDX: 640000450008cf9d RSI: ffffffffffffffff RDI: > 640000450008cf9d > [49133.808033] RBP: ffff8801e31c5b08 R08: 000000000000ffff R09: > 000000000000ffff > [49133.808033] R10: 0000000000000000 R11: 0000000000000ffe R12: > 640000450008cf9d > [49133.808033] R13: ffffffff81e4e900 R14: 0000000000000000 R15: > 000000000000ffff > [49133.808033] FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) > knlGS:0000000000000000 > [49133.808033] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [49133.808033] CR2: 00007fa4a91abd80 CR3: 000000020e783000 CR4: > 00000000000006e0 > [49133.808033] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [49133.808033] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [49133.808033] Process kworker/2:1H (pid: 2907, threadinfo ffff8801e31c4000, > task ffff8802124f45c0) > [49133.808033] Stack: > [49133.808033] ffff8801e31c5b48 ffffffff81359d8e ffff8801e31c5b28 > ffffffff81e4e527 > [49133.808033] ffffffffa0636a1e ffff8801e31c5c80 ffffffffa0636a1e > ffffffff81e4e900 > [49133.808033] ffff8801e31c5bc8 ffffffff8135af89 ffff8801e31c5bc8 > ffffffff8105a4e7 > [49133.808033] Call Trace: > [49133.808033] [] string.isra.4+0x3e/0xd0 > [49133.808033] [] vsnprintf+0x219/0x640 > [49133.808033] [] ? msg_print_text+0xb7/0x1b0 > [49133.808033] [] vscnprintf+0x11/0x30 > [49133.808033] [] vprintk_emit+0xc1/0x490 > [49133.808033] [] ? vprintk_emit+0x170/0x490 > [49133.808033] [] printk+0x61/0x63 > [49133.808033] [] __xfs_printk+0x31/0x50 [xfs] > [49133.808033] [] xfs_notice+0x53/0x60 [xfs] > [49133.808033] [] xfs_do_force_shutdown+0xf5/0x180 [xfs] > [49133.808033] [] ? xlog_recover_iodone+0x48/0x70 [xfs] > [49133.808033] [] xlog_recover_iodone+0x48/0x70 [xfs] > [49133.808033] [] xfs_buf_iodone_work+0x4d/0xa0 [xfs] > [49133.808033] [] process_one_work+0x141/0x490 > [49133.808033] [] worker_thread+0x168/0x400 > [49133.808033] [] ? manage_workers+0x120/0x120 > [49133.808033] [] kthread+0xc0/0xd0 > [49133.808033] [] ? flush_kthread_worker+0xb0/0xb0 > [49133.808033] [] ret_from_fork+0x7c/0xb0 > [49133.808033] [] ? flush_kthread_worker+0xb0/0xb0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Mon Aug 4 13:15:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 129AD7F72 for ; Mon, 4 Aug 2014 13:15:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id B2604AC001 for ; Mon, 4 Aug 2014 11:15:04 -0700 (PDT) X-ASG-Debug-ID: 1407176101-04bdf03d42159c10001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id ygt97VPfceuLy4Lb for ; Mon, 04 Aug 2014 11:15:02 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 5491C6539281; Mon, 4 Aug 2014 13:15:01 -0500 (CDT) Message-ID: <53DFCDA4.9000605@sandeen.net> Date: Mon, 04 Aug 2014 13:15:00 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Alex Lyakas , Dave Chinner CC: xfs@oss.sgi.com Subject: Re: xfs_growfs_data_private memory leak References: <20131226230018.GJ20579@dastard> <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <20140701215626.GE9508@dastard> X-ASG-Orig-Subj: Re: xfs_growfs_data_private memory leak In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407176102 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8117 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 7/2/14, 7:27 AM, Alex Lyakas wrote: > Hi Dave, > Thank you for your comments. > > I realize that secondary superblocks are needed mostly for repairing s/mostly/only/ > a broken filesystem. However, I don't see that they get updated > regularly, i.e., during normal operation they don't seem to get > updated at all. I put a print in xfs_sb_write_verify, and it gets > called only with: bp->b_bn==XFS_SB_DADDR. See the comments above verify_sb(): not everything is validated, so not everything needs to be constantly updated. It's just the basic fs geometry, not counters, etc. /* * verify a superblock -- does not verify root inode # * can only check that geometry info is internally * consistent. because of growfs, that's no guarantee * of correctness (e.g. geometry may have changed) * * fields verified or consistency checked: * * sb_magicnum * * sb_versionnum * * sb_inprogress * * sb_blocksize (as a group) * sb_blocklog * * geometry info - sb_dblocks (as a group) * sb_agcount * sb_agblocks * sb_agblklog * * inode info - sb_inodesize (x-checked with geo info) * sb_inopblock * * sector size info - * sb_sectsize * sb_sectlog * sb_logsectsize * sb_logsectlog * * not checked here - * sb_rootino * sb_fname * sb_fpack * sb_logstart * sb_uuid * * ALL real-time fields * final 4 summary counters */ > So do I understand correctly (also from comments in > xfs_growfs_data_private), that it is safe to operate a filesystem > while having broken secondary superblocks? For me, it appears to > mount properly, and all the data seems to be there, but xfs_check > complains like: > bad sb magic # 0xc2a4baf2 in ag 6144 > bad sb version # 0x4b5d in ag 6144 > blocks 6144/65536..2192631388 out of range > blocks 6144/65536..2192631388 claimed by block 6144/0 > bad sb magic # 0xb20f3079 in ag 6145 > bad sb version # 0x6505 in ag 6145 > blocks 6145/65536..3530010017 out of range > blocks 6145/65536..3530010017 claimed by block 6145/0 > ... some of that looks more serious than "just" bad backup sb's. But the bad secondaries shouldn't cause runtime problems AFAIK. > Also, if secondary superblocks do not get updated regularly, and > there is no way to ask an operational XFS to update them, then during > repair we may not find a good secondary superblock. You seem to have 6144 (!) allocation groups; one would hope that a majority of those supers would be "good" and the others will be properly corrected by an xfs_repair. > As for the patch, I cannot post a patch against the upstream kernel, > because I am running an older kernel. Unfortunately, I cannot qualify > an upstream patch properly in a reasonable time. Is there a value in > posting a patch against 3.8.13? Otherwise, it's fine by me if > somebody else posts it and takes the credit. If the patch applies cleanly to both kernels, probably fine to go ahead and post it, with that caveat. -Eric > Thanks, > Alex. > > > > -----Original Message----- From: Dave Chinner > Sent: 02 July, 2014 12:56 AM > To: Alex Lyakas > Cc: xfs@oss.sgi.com > Subject: Re: xfs_growfs_data_private memory leak > > On Tue, Jul 01, 2014 at 06:06:38PM +0300, Alex Lyakas wrote: >> Greetings, >> >> It appears that if xfs_growfs_data_private fails during the "new AG >> headers" loop, it does not free all the per-AG structures for the >> new AGs. When XFS is unmounted later, they are not freed as well, >> because xfs_growfs_data_private did not update the "sb_agcount" >> field, so xfs_free_perag will not free them. This happens on 3.8.13, >> but looking at the latest master branch, it seems to have the same >> issue. >> >> Code like [1] in xfs_growfs_data, seems to fix the issue. > > Why not just do this in the appropriate error stack, like is > done inside xfs_initialize_perag() on error? > > for (i = oagcount; i < nagcount; i++) { > pag = radix_tree_delete(&mp->m_perag_tree, index); > kmem_free(pag); > } > > (though it might need RCU freeing) > > When you have a fix, can you send a proper patch with a sign-off on > it? > >> A follow-up question: if xfs_grows_data_private fails during the >> loop that updates all the secondary superblocks, what is the >> consequence? (I am aware that in the latest master branch, the loop >> is not broken on first error, but attempts to initialize whatever >> possible). When these secondary superblocks will get updated? Is >> there a way to force-update them? Otherwise, what can be the >> consequence of leaving them not updated? > > The consequence is documented in mainline tree - if we don't update > them all, then repair will do the wrong thing. Repair requires a > majority iof identical secondaries to determine if the primary is > correct or out of date. The old behaviour of not updating after the > first error meant that the majority were old superblocks and so at > some time in the future repair could decide your filesystem is > smaller than it really is and hence truncate away the grown section > of the filesystem. i.e. trigger catastrophic, unrecoverable data > loss. > > Hence it's far better to write every seconday we can than to leave > a majority in a bad state.... > > Cheers, > > Dave. From david@fromorbit.com Mon Aug 4 17:15:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 452C77F74 for ; Mon, 4 Aug 2014 17:15:47 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 135BF30406B for ; Mon, 4 Aug 2014 15:15:46 -0700 (PDT) X-ASG-Debug-ID: 1407190541-04bdf03d451674c0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id PMgBnv6BGYNecUfB for ; Mon, 04 Aug 2014 15:15:41 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As8GANQE4FN5LKl0/2dsb2JhbABRCoMNgSmCJ6xRAQEBAQEGpQUBgRQXd4QDAQEEAScTHCMFCwgDDgcDCSUPBSUDIROIOgfEORcYhWSEA4RxD00HhEsFnAWUYINfKy+BBQ Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail07.adl2.internode.on.net with ESMTP; 05 Aug 2014 07:45:40 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XEQXO-0002tl-NX; Tue, 05 Aug 2014 08:15:26 +1000 Date: Tue, 5 Aug 2014 08:15:26 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140804221526.GZ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> <20140804124836.GA4049@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140804124836.GA4049@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407190541 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8124 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 04, 2014 at 08:48:36AM -0400, Brian Foster wrote: > On Mon, Aug 04, 2014 at 06:09:30PM +1000, Dave Chinner wrote: > > On Fri, Aug 01, 2014 at 10:39:29AM -0400, Brian Foster wrote: > > > On Thu, Jul 31, 2014 at 05:33:11PM +1000, Dave Chinner wrote: > > > > From: Dave Chinner > > > > > > > > We now have several superblock loggin functions that are identical > > > > except for the transaction reservation and whether it shoul dbe a > > > > synchronous transaction or not. Consolidate these all into a single > > > > function, a single reserveration and a sync flag and call it > > > > xfs_sync_sb(). > > > > > > > > Also, xfs_mod_sb() is not really a modification function - it's the > > > > operation of logging the superblock buffer. hence change the name of > > > > it to reflect this. > > > > > > > > Note that we have to change the mp->m_update_flags that are passed > > > > around at mount time to a boolean simply to indicate a superblock > > > > update is needed. > > ..... > > > > + > > > > +/* > > > > + * xfs_sync_sb > > > > + * > > > > + * Sync the superblock to disk. > > > > + * > > > > + * Note this code can be called during the process of freezing, so > > > > + * we may need to use the transaction allocator which does not > > > > + * block when the transaction subsystem is in its frozen state. > > > > + */ > > > > +int > > > > +xfs_sync_sb( > > > > + struct xfs_mount *mp, > > > > + bool wait) > > > > +{ > > > > + struct xfs_trans *tp; > > > > + int error; > > > > + > > > > + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); > > > > > > We're converting some previous calls of xfs_trans_alloc() to the > > > _xfs_trans_alloc() variant. The only difference is the dropped call to > > > sb_start_intwrite() and I see that technically we handle that with the > > > xfs_fs_writeable() check. > > > > Writing a change to the superblock is not something that normal > > operations do. They are something that is typically done as a > > standalone management operation, and hence the xfs_fs_writeable() > > check is usually enough. > > > > Fair point, an sb modification is something that should stand out. I > think the characteristic of the new api is somewhat subtle, however. Which is why there's a comment explaining it. Is there anything I can add to that comment to make it clearer? > > > Unless I misunderstand, the sb_start_inwrite() call is what will > > > block us on internal transaction allocs once the fs is already > > > frozen. It seems a little dicey to me to offer up this single > > > helper without much indication that a frozen check might be a > > > requirement, particularly since this is expected to be built into > > > the transaction infrastructure. > > > > Right, but none of the callers actually are run in a situation where > > they should block on freezes, either complete or in progress. i.e. > > there is no requirement for freeze checks - there is the opposite: > > requirements to avoid freeze checks so the code doesn't deadlock. > > > > Sure, but the codepaths with that requirement were previously explicitly > and exclusively using _xfs_trans_alloc(). And they still are. It's just now explicit for a bunch more use cases that previously weren't.... > > > How would we expect a new caller to identify that? > > > > Same as we always do: by code review. > > > > Fair enough, but what happens if^Wwhen something is missed? :) I think > that means we can potentially modify a frozen fs. Sure, but that can happen if we make any number of mistakes..... > I'd feel better if we > had a BUG_ON() or assert at the very least, but the obvious problem is > the couple of contexts we have where we explicitly make a modification > as part of the freeze sequence. Yup, and that's why I put a comment there instead of trying to add asserts - there is no single freeze condition we can actually assert on because the code is called from non-freeze situations where the s_umount is held as well as situations where the freeze is in progress. I guess that the only thing we might see as common is that the s_umount is held in all these code paths, but I'm not sure that we should be looking at that lock this deep inside the XFS code... > > > Even the current xfs_fs_writable() check seems like it might be > > > unnecessary, given some brief testing. I don't hit the mount path at all > > > on a frozen fs. > > > > xfs_fs_writable() checks more than whether the filesystem is > > frozen. ;) > > > > Sure, so there's a new shutdown check before the xfs_trans_commit() that > would fail anyways due to already having a shutdown check. ;) There isn't any new check before a transaction commit in this patch. The only change involving xfs_fs_writeable() was this in xfs_mount_reset_sbqflags(): - if (mp->m_flags & XFS_MOUNT_RDONLY) + if (!xfs_fs_writable(mp)) I can revert that if you're really concerned about it.... > > > I'm not sure of the mechanics behind that, but I'm > > > guessing some kind of reference remains on the sb of a frozen fs and a > > > subsequent umount/mount is purely namespace magic. Point being... this > > > appears to be implicit and confusing. IMO, using an _xfs_sync_sb() > > > variant that allocates a nonblocking tp if one isn't provided as a > > > parameter (for example) and using that only in the contexts we know it's > > > Ok to avoid freeze interaction issues might be more clear. > > > > Well, it was pretty clear to me that the code paths were free of > > freeze interactions. Looking at this - especially the quota on/off > > paths - I guess it's not as obvious as I thought it was... :/ > > > > My point was more geared towards future use. E.g., we have frozen fs > management built into transaction management, which is nice and clean > and easy to understand. Actually, it's nowhere near as clean as you think. :/ e.g. did you know that the xfs_fs_writable() check in xfs_log_sbcount() is to prevent it from writing anything when unmounting a fully frozen filesystem? i.e. xfs_log_sbcount needs to succeed while a freeze is in progress, but fail when a freeze is fully complete? i.e. we *already have* micro-management of frozen state for superblock writes, even if it's not explicitly stated. Factoring the logging implementation does not change the fact we already have higher level management of freeze state and will continue to need it in the future. I realise that all the freeze complexities are not exactly obvious, so if there are new comments that would help please suggest what you'd like to see ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 4 18:07:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9F2257F76 for ; Mon, 4 Aug 2014 18:07:51 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 37D8AAC001 for ; Mon, 4 Aug 2014 16:07:48 -0700 (PDT) X-ASG-Debug-ID: 1407193665-04cbb02d851521b0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 2ekXUivm3HbVXq7W for ; Mon, 04 Aug 2014 16:07:45 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As4GAOYR4FN5LKl0/2dsb2JhbABbgw2BKYInrFEBAQEBAQalBQGBERd3hAQBBTocIxAIAxgJJQ8FJQMhE4hBxDsXGIVkiVAHgy+BHAWcBZRgg18rLw Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail07.adl2.internode.on.net with ESMTP; 05 Aug 2014 08:37:35 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XERLd-00030P-D9; Tue, 05 Aug 2014 09:07:21 +1000 Date: Tue, 5 Aug 2014 09:07:21 +1000 From: Dave Chinner To: Alex Lyakas Cc: xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140804230721.GA20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407193665 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8126 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > Greetings, > > we had a log replay failure due to some errors that the underlying > block device returned: > [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > ("xlog_recover_iodone") error 28 numblks 16 > [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > [49133.802644] XFS (dm-95): log mount failed #define ENOSPC 28 /* No space left on device */ You're getting an ENOSPC as a metadata IO error during log recovery? Thin provisioning problem, perhaps, and the error is occurring on submission rather than completion? If so: 8d6c121 xfs: fix buffer use after free on IO error Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Mon Aug 4 19:03:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CAAE07F78 for ; Mon, 4 Aug 2014 19:03:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id B328F304053 for ; Mon, 4 Aug 2014 17:03:42 -0700 (PDT) X-ASG-Debug-ID: 1407197017-04cbb02d84153f60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9Dk1EakjXzbqKAPf (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 04 Aug 2014 17:03:38 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7503afs026274 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 4 Aug 2014 20:03:36 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7503ZJ3001283; Mon, 4 Aug 2014 20:03:35 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id C671B12577C; Mon, 4 Aug 2014 20:03:33 -0400 (EDT) Date: Mon, 4 Aug 2014 20:03:33 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140805000333.GA27760@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> <20140804124836.GA4049@bfoster.bfoster> <20140804221526.GZ20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140804221526.GZ20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407197018 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 05, 2014 at 08:15:26AM +1000, Dave Chinner wrote: > On Mon, Aug 04, 2014 at 08:48:36AM -0400, Brian Foster wrote: > > On Mon, Aug 04, 2014 at 06:09:30PM +1000, Dave Chinner wrote: > > > On Fri, Aug 01, 2014 at 10:39:29AM -0400, Brian Foster wrote: > > > > On Thu, Jul 31, 2014 at 05:33:11PM +1000, Dave Chinner wrote: > > > > > From: Dave Chinner > > > > > > > > > > We now have several superblock loggin functions that are identical > > > > > except for the transaction reservation and whether it shoul dbe a > > > > > synchronous transaction or not. Consolidate these all into a single > > > > > function, a single reserveration and a sync flag and call it > > > > > xfs_sync_sb(). > > > > > > > > > > Also, xfs_mod_sb() is not really a modification function - it's the > > > > > operation of logging the superblock buffer. hence change the name of > > > > > it to reflect this. > > > > > > > > > > Note that we have to change the mp->m_update_flags that are passed > > > > > around at mount time to a boolean simply to indicate a superblock > > > > > update is needed. > > > ..... > > > > > + > > > > > +/* > > > > > + * xfs_sync_sb > > > > > + * > > > > > + * Sync the superblock to disk. > > > > > + * > > > > > + * Note this code can be called during the process of freezing, so > > > > > + * we may need to use the transaction allocator which does not > > > > > + * block when the transaction subsystem is in its frozen state. > > > > > + */ > > > > > +int > > > > > +xfs_sync_sb( > > > > > + struct xfs_mount *mp, > > > > > + bool wait) > > > > > +{ > > > > > + struct xfs_trans *tp; > > > > > + int error; > > > > > + > > > > > + tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP); > > > > > > > > We're converting some previous calls of xfs_trans_alloc() to the > > > > _xfs_trans_alloc() variant. The only difference is the dropped call to > > > > sb_start_intwrite() and I see that technically we handle that with the > > > > xfs_fs_writeable() check. > > > > > > Writing a change to the superblock is not something that normal > > > operations do. They are something that is typically done as a > > > standalone management operation, and hence the xfs_fs_writeable() > > > check is usually enough. > > > > > > > Fair point, an sb modification is something that should stand out. I > > think the characteristic of the new api is somewhat subtle, however. > > Which is why there's a comment explaining it. Is there anything I > can add to that comment to make it clearer? > I would change this: /* * ... * * Note this code can be called during the process of freezing, so * we may need to use the transaction allocator which does not * block when the transaction subsystem is in its frozen state. */ ... to something like: /* * ... * * Note that the caller is responsible for checking the frozen state of * the filesystem. This procedure uses the non-blocking transaction * allocator and thus will allow modifications to a frozen fs. This is * required because this code can be called during the process of * freezing where use of the high-level allocator would deadlock. */ > > > > Unless I misunderstand, the sb_start_inwrite() call is what will > > > > block us on internal transaction allocs once the fs is already > > > > frozen. It seems a little dicey to me to offer up this single > > > > helper without much indication that a frozen check might be a > > > > requirement, particularly since this is expected to be built into > > > > the transaction infrastructure. > > > > > > Right, but none of the callers actually are run in a situation where > > > they should block on freezes, either complete or in progress. i.e. > > > there is no requirement for freeze checks - there is the opposite: > > > requirements to avoid freeze checks so the code doesn't deadlock. > > > > > > > Sure, but the codepaths with that requirement were previously explicitly > > and exclusively using _xfs_trans_alloc(). > > And they still are. It's just now explicit for a bunch more use > cases that previously weren't.... > > > > > How would we expect a new caller to identify that? > > > > > > Same as we always do: by code review. > > > > > > > Fair enough, but what happens if^Wwhen something is missed? :) I think > > that means we can potentially modify a frozen fs. > > Sure, but that can happen if we make any number of mistakes..... > Indeed. My point was that we should add some kind of warning/bug/assert mechanism to catch a problem if at all possible. > > I'd feel better if we > > had a BUG_ON() or assert at the very least, but the obvious problem is > > the couple of contexts we have where we explicitly make a modification > > as part of the freeze sequence. > > Yup, and that's why I put a comment there instead of trying to add > asserts - there is no single freeze condition we can actually assert > on because the code is called from non-freeze situations where the > s_umount is held as well as situations where the freeze is in > progress. I guess that the only thing we might see as common is that > the s_umount is held in all these code paths, but I'm not sure that > we should be looking at that lock this deep inside the XFS code... > > > > > Even the current xfs_fs_writable() check seems like it might be > > > > unnecessary, given some brief testing. I don't hit the mount path at all > > > > on a frozen fs. > > > > > > xfs_fs_writable() checks more than whether the filesystem is > > > frozen. ;) > > > > > > > Sure, so there's a new shutdown check before the xfs_trans_commit() that > > would fail anyways due to already having a shutdown check. ;) > > There isn't any new check before a transaction commit in this patch. > The only change involving xfs_fs_writeable() was this in > xfs_mount_reset_sbqflags(): > > - if (mp->m_flags & XFS_MOUNT_RDONLY) > + if (!xfs_fs_writable(mp)) > > I can revert that if you're really concerned about it.... > Not really... I was commenting that the only real difference with this change is the shutdown check, and that clearly wasn't the intent behind the change, this being one of the paths that changed to use the non-blocking tp allocator. > > > > I'm not sure of the mechanics behind that, but I'm > > > > guessing some kind of reference remains on the sb of a frozen fs and a > > > > subsequent umount/mount is purely namespace magic. Point being... this > > > > appears to be implicit and confusing. IMO, using an _xfs_sync_sb() > > > > variant that allocates a nonblocking tp if one isn't provided as a > > > > parameter (for example) and using that only in the contexts we know it's > > > > Ok to avoid freeze interaction issues might be more clear. > > > > > > Well, it was pretty clear to me that the code paths were free of > > > freeze interactions. Looking at this - especially the quota on/off > > > paths - I guess it's not as obvious as I thought it was... :/ > > > > > > > My point was more geared towards future use. E.g., we have frozen fs > > management built into transaction management, which is nice and clean > > and easy to understand. > > Actually, it's nowhere near as clean as you think. :/ > > e.g. did you know that the xfs_fs_writable() check in > xfs_log_sbcount() is to prevent it from writing anything when > unmounting a fully frozen filesystem? i.e. xfs_log_sbcount needs to > succeed while a freeze is in progress, but fail when a freeze is > fully complete? > Hmm, so freeze_super() sets s_frozen to SB_FREEZE_FS before it calls into the fs. Given the xfs_fs_writable() logic, how is that going to differentiate a freezing fs from a frozen fs? It makes sense that this would avoid blocking on umount of a frozen fs, but it seems like we'd skip out just the same during the freeze sequence. Maybe I'm missing something... > i.e. we *already have* micro-management of frozen state for > superblock writes, even if it's not explicitly stated. > > Factoring the logging implementation does not change the fact we > already have higher level management of freeze state and will > continue to need it in the future. I realise that all the freeze > complexities are not exactly obvious, so if there are new comments > that would help please suggest what you'd like to see ;) > The comment suggestion above addresses my concern. The assert/bug/warning safety net I was looking for already exists down in _xfs_trans_alloc(): WARN_ON(mp->m_super->s_writers.frozen == SB_FREEZE_COMPLETE); ... which looks designed to acknowledge that we can/do use this interface while freezing, but never once frozen. Sorry for the noise, thanks. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From billstuff2001@sbcglobal.net Mon Aug 4 19:26:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2285D7F78 for ; Mon, 4 Aug 2014 19:26:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C1AB5304059 for ; Mon, 4 Aug 2014 17:26:01 -0700 (PDT) X-ASG-Debug-ID: 1407198358-04bdf03d4216bc00001-NocioJ Received: from nm14-vm8.access.bullet.mail.gq1.yahoo.com (nm14-vm8.access.bullet.mail.gq1.yahoo.com [216.39.63.222]) by cuda.sgi.com with ESMTP id Ox124GkUZ59mmrIr (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; 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Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: xfs hang in 3.14.15 Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-ASG-Orig-Subj: xfs hang in 3.14.15 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: nm14-vm8.access.bullet.mail.gq1.yahoo.com[216.39.63.222] X-Barracuda-Start-Time: 1407198359 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8126 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi, I've been running a stress test on 3.14.15 and eventually my xfs filesystem hangs. Both 3.10.50 and 3.16 seem to work ok. The test is a continual loop building a kernel. Once it hangs, the machine needs to be hard reset. xfs_info shows this: meta-data=/dev/md3 isize=256 agcount=16, agsize=1627664 blks = sectsz=4096 attr=2 data = bsize=4096 blocks=26042624, imaxpct=25 = sunit=16 swidth=80 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=12716, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 It's on a raid5, although I've gotten the hang on a regular single disk fs as well. md3 : active raid5 sda1[0] sdf1[5] sde1[4] sdd1[3] sdc1[2] sdb1[1] 104171200 blocks level 5, 64k chunk, algorithm 2 [6/6] [UUUUUU] bitmap: 0/5 pages [0KB], 2048KB chunk Here's the mount options: /dev/md3 on /mnt/md3 type xfs (rw,noatime,swalloc) Things usually run well for a while before hanging - in this instance it ran nearly 24 hours before it hung. A whole bunch of message info is below. Any idea what's happening here? Thanks Bill /var/log/messages shows this shortly after the hang: Aug 4 17:34:34 xplane kernel: kworker/u16:0 D 00000286 0 26574 2 0x00000000 Aug 4 17:34:34 xplane kernel: Workqueue: writeback bdi_writeback_workfn (flush-9:3) Aug 4 17:34:34 xplane kernel: kworker/0:1 D ea649638 0 17883 2 0x00000000 Aug 4 17:34:34 xplane kernel: Workqueue: xfs-log/md3 xfs_log_worker [xfs] Aug 4 17:34:34 xplane kernel: sh D 00000000 0 3237 3234 0x00000000 Aug 4 17:34:34 xplane kernel: mv D c1506cc8 0 17651 13354 0x00000000 Aug 4 17:34:34 xplane kernel: recordmcount D 00000000 0 17655 17580 0x00000000 Aug 4 17:34:34 xplane kernel: sh D 00001000 0 17677 17675 0x00000000 Aug 4 17:36:34 xplane kernel: kworker/u16:0 D 00000286 0 26574 2 0x00000000 Aug 4 17:36:34 xplane kernel: Workqueue: writeback bdi_writeback_workfn (flush-9:3) Aug 4 17:36:34 xplane kernel: kworker/0:1 D ea649638 0 17883 2 0x00000000 Aug 4 17:36:34 xplane kernel: Workqueue: xfs-log/md3 xfs_log_worker [xfs] Aug 4 17:36:34 xplane kernel: sh D 00000000 0 3237 3234 0x00000000 Aug 4 17:36:34 xplane kernel: mv D c1506cc8 0 17651 13354 0x00000000 and dmesg is here: INFO: task kworker/u16:0:26574 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u16:0 D 00000286 0 26574 2 0x00000000 Workqueue: writeback bdi_writeback_workfn (flush-9:3) ce385b84 00000046 df51bb30 00000286 f3e8a097 df51ba78 df51bb30 c1787600 c1787600 c16a5e40 d03a3160 00000065 ce385b64 f3e8b14f 00000004 f3ec8986 e65bccf8 ce385b80 c10f457e dcc9e740 e925e800 e92b2e00 000000fa e8593c00 Call Trace: [] ? xfs_trans_free+0x57/0x60 [xfs] [] ? xfs_trans_commit+0x12f/0x230 [xfs] [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_setfilesize_trans_alloc.isra.7+0x38/0x90 [xfs] [] xfs_vm_writepage+0x465/0x580 [xfs] [] __writepage+0x10/0x40 [] ? mapping_tagged+0x20/0x20 [] write_cache_pages+0x170/0x3d0 [] ? mapping_tagged+0x20/0x20 [] ? blk_flush_plug_list+0x86/0x1b0 [] generic_writepages+0x33/0x60 [] xfs_vm_writepages+0x33/0x40 [xfs] [] do_writepages+0x1a/0x40 [] __writeback_single_inode+0x42/0x1f0 [] ? wake_up_bit+0x1c/0x20 [] writeback_sb_inodes+0x193/0x2e0 [] __writeback_inodes_wb+0x7c/0xb0 [] wb_writeback+0x1d2/0x270 [] bdi_writeback_workfn+0x20c/0x380 [] process_one_work+0x108/0x340 [] ? mod_timer+0xd5/0x180 [] worker_thread+0x101/0x330 [] ? manage_workers.isra.28+0x250/0x250 [] kthread+0xa1/0xc0 [] ret_from_kernel_thread+0x1b/0x28 [] ? kthread_create_on_node+0x110/0x110 INFO: task kworker/0:1:17883 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:1 D ea649638 0 17883 2 0x00000000 Workqueue: xfs-log/md3 xfs_log_worker [xfs] e385be50 00000046 00000001 ea649638 ced77c5f 00004ed9 ea649638 c1787600 c1787600 e741b1a0 e0f872a0 e385be84 c106aaec 00000000 00000000 f3ec8986 e2c8bda8 e385be4c c10f457e 00000000 00000000 0000b40e 000000fa e8593c00 Call Trace: [] ? load_balance+0x16c/0x5b0 [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_fs_log_dummy+0x34/0x80 [xfs] [] xfs_log_worker+0x3f/0x50 [xfs] [] process_one_work+0x108/0x340 [] ? destroy_worker+0x83/0xc0 [] ? manage_workers.isra.28+0x1a5/0x250 [] worker_thread+0x101/0x330 [] ? manage_workers.isra.28+0x250/0x250 [] kthread+0xa1/0xc0 [] ret_from_kernel_thread+0x1b/0x28 [] ? kthread_create_on_node+0x110/0x110 INFO: task sh:3237 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. sh D 00000000 0 3237 3234 0x00000000 c094dd48 00000082 00000000 00000000 c094dd04 f3ec8b16 e8593e04 c1787600 c1787600 ea18f630 e741ad50 e8593c00 e8593e00 e8593c74 c094dd24 f3ec8986 c697c058 c094dd44 c10f457e c094dd2c c10379be ea81d180 000000fa e8593c00 Call Trace: [] ? xlog_grant_head_wake+0x56/0xc0 [xfs] [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? kmap_atomic_prot+0x3e/0xd0 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_vn_update_time+0x58/0x150 [xfs] [] ? xfs_vn_getattr+0x200/0x200 [xfs] [] update_time+0x1e/0xa0 [] file_update_time+0x6b/0xa0 [] xfs_file_aio_write_checks+0x8d/0x140 [xfs] [] xfs_file_buffered_aio_write+0x68/0x180 [xfs] [] ? do_wp_page+0x2e5/0x740 [] xfs_file_aio_write+0xc9/0x180 [xfs] [] do_sync_write+0x57/0x90 [] ? do_sync_read+0x90/0x90 [] vfs_write+0x90/0x180 [] SyS_write+0x4c/0xb0 [] syscall_call+0x7/0x7 INFO: task mv:17651 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. mv D c1506cc8 0 17651 13354 0x00000000 cfbabd0c 00000086 cfbabca0 c1506cc8 00000001 c16e4c74 00000003 c1787600 c1787600 ea15ed50 cace76b0 c106f28f 00000000 00000000 00000001 f3ec8986 c697c108 cfbabd08 c10f457e c14de398 00000000 ce29bd80 000000fa e8593c00 Call Trace: [] ? _raw_spin_unlock_bh+0x18/0x20 [] ? __wake_up+0x3f/0x50 [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? rpc_release_client+0x78/0x80 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_rename+0xeb/0x5a0 [xfs] [] ? inode_permission+0x16/0x50 [] ? filldir64+0x44/0x110 [] xfs_vn_rename+0x8b/0xa0 [xfs] [] vfs_rename+0x4fe/0x510 [] ? lookup_dcache+0x24/0xa0 [] SyS_renameat+0x21e/0x340 [] ? __do_page_fault+0x28f/0x4d0 [] SyS_rename+0x2d/0x30 [] syscall_call+0x7/0x7 INFO: task recordmcount:17655 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. recordmcount D 00000000 0 17655 17580 0x00000000 dbf57d48 00000086 00000000 00000000 c14e099e c5690160 e8593e04 c1787600 c1787600 e9989670 d01551e0 e8593c00 e8593e00 e8593c74 dbf57d24 f3ec8986 cf59aa38 dbf57d44 c10f457e cf72c73c 00000000 dbf57d2c 000000fa e8593c00 Call Trace: [] ? xprt_release+0x11e/0x250 [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_vn_update_time+0x58/0x150 [xfs] [] ? xfs_vn_getattr+0x200/0x200 [xfs] [] update_time+0x1e/0xa0 [] file_update_time+0x6b/0xa0 [] xfs_file_aio_write_checks+0x8d/0x140 [xfs] [] xfs_file_buffered_aio_write+0x68/0x180 [xfs] [] xfs_file_aio_write+0xc9/0x180 [xfs] [] do_sync_write+0x57/0x90 [] ? do_sync_read+0x90/0x90 [] vfs_write+0x90/0x180 [] SyS_write+0x4c/0xb0 [] syscall_call+0x7/0x7 INFO: task sh:17677 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. sh D 00001000 0 17677 17675 0x00000000 e3d73cd4 00000086 dc9e2420 00001000 e3d73c90 c1122497 f0bbcb20 c1787600 c1787600 c16a5e40 e91bbb40 00000287 00000001 00000288 e93b5400 f3ec8986 c63862a8 e3d73cd0 c10f457e e3d73cd0 c112259b 00001287 000000fa e8593c00 Call Trace: [] ? __block_commit_write.isra.18+0x67/0x90 [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? generic_write_end+0x7b/0xb0 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_create+0x113/0x490 [xfs] [] xfs_vn_mknod+0x84/0xe0 [xfs] [] xfs_vn_create+0x1a/0x20 [xfs] [] vfs_create+0x9c/0xe0 [] do_last.isra.46+0x7aa/0xbf0 [] ? link_path_walk+0x1ed/0x6f0 [] ? kmem_cache_alloc+0xae/0x110 [] path_openat+0xac/0x590 [] ? handle_mm_fault+0x132/0x850 [] do_filp_open+0x31/0x80 [] do_sys_open+0x121/0x220 [] ? sigprocmask+0x67/0xb0 [] SyS_open+0x22/0x30 [] syscall_call+0x7/0x7 INFO: task kworker/u16:0:26574 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u16:0 D 00000286 0 26574 2 0x00000000 Workqueue: writeback bdi_writeback_workfn (flush-9:3) ce385b84 00000046 df51bb30 00000286 f3e8a097 df51ba78 df51bb30 c1787600 c1787600 c16a5e40 d03a3160 00000065 ce385b64 f3e8b14f 00000004 f3ec8986 e65bccf8 ce385b80 c10f457e dcc9e740 e925e800 e92b2e00 000000fa e8593c00 Call Trace: [] ? xfs_trans_free+0x57/0x60 [xfs] [] ? xfs_trans_commit+0x12f/0x230 [xfs] [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_setfilesize_trans_alloc.isra.7+0x38/0x90 [xfs] [] xfs_vm_writepage+0x465/0x580 [xfs] [] __writepage+0x10/0x40 [] ? mapping_tagged+0x20/0x20 [] write_cache_pages+0x170/0x3d0 [] ? mapping_tagged+0x20/0x20 [] ? blk_flush_plug_list+0x86/0x1b0 [] generic_writepages+0x33/0x60 [] xfs_vm_writepages+0x33/0x40 [xfs] [] do_writepages+0x1a/0x40 [] __writeback_single_inode+0x42/0x1f0 [] ? wake_up_bit+0x1c/0x20 [] writeback_sb_inodes+0x193/0x2e0 [] __writeback_inodes_wb+0x7c/0xb0 [] wb_writeback+0x1d2/0x270 [] bdi_writeback_workfn+0x20c/0x380 [] process_one_work+0x108/0x340 [] ? mod_timer+0xd5/0x180 [] worker_thread+0x101/0x330 [] ? manage_workers.isra.28+0x250/0x250 [] kthread+0xa1/0xc0 [] ret_from_kernel_thread+0x1b/0x28 [] ? kthread_create_on_node+0x110/0x110 INFO: task kworker/0:1:17883 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:1 D ea649638 0 17883 2 0x00000000 Workqueue: xfs-log/md3 xfs_log_worker [xfs] e385be50 00000046 00000001 ea649638 ced77c5f 00004ed9 ea649638 c1787600 c1787600 e741b1a0 e0f872a0 e385be84 c106aaec 00000000 00000000 f3ec8986 e2c8bda8 e385be4c c10f457e 00000000 00000000 0000b40e 000000fa e8593c00 Call Trace: [] ? load_balance+0x16c/0x5b0 [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_fs_log_dummy+0x34/0x80 [xfs] [] xfs_log_worker+0x3f/0x50 [xfs] [] process_one_work+0x108/0x340 [] ? destroy_worker+0x83/0xc0 [] ? manage_workers.isra.28+0x1a5/0x250 [] worker_thread+0x101/0x330 [] ? manage_workers.isra.28+0x250/0x250 [] kthread+0xa1/0xc0 [] ret_from_kernel_thread+0x1b/0x28 [] ? kthread_create_on_node+0x110/0x110 INFO: task sh:3237 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. sh D 00000000 0 3237 3234 0x00000000 c094dd48 00000082 00000000 00000000 c094dd04 f3ec8b16 e8593e04 c1787600 c1787600 ea18f630 e741ad50 e8593c00 e8593e00 e8593c74 c094dd24 f3ec8986 c697c058 c094dd44 c10f457e c094dd2c c10379be ea81d180 000000fa e8593c00 Call Trace: [] ? xlog_grant_head_wake+0x56/0xc0 [xfs] [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? kmap_atomic_prot+0x3e/0xd0 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_vn_update_time+0x58/0x150 [xfs] [] ? xfs_vn_getattr+0x200/0x200 [xfs] [] update_time+0x1e/0xa0 [] file_update_time+0x6b/0xa0 [] xfs_file_aio_write_checks+0x8d/0x140 [xfs] [] xfs_file_buffered_aio_write+0x68/0x180 [xfs] [] ? do_wp_page+0x2e5/0x740 [] xfs_file_aio_write+0xc9/0x180 [xfs] [] do_sync_write+0x57/0x90 [] ? do_sync_read+0x90/0x90 [] vfs_write+0x90/0x180 [] SyS_write+0x4c/0xb0 [] syscall_call+0x7/0x7 INFO: task mv:17651 blocked for more than 120 seconds. Tainted: P O 3.14.15fe-dirty #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. mv D c1506cc8 0 17651 13354 0x00000000 cfbabd0c 00000086 cfbabca0 c1506cc8 00000001 c16e4c74 00000003 c1787600 c1787600 ea15ed50 cace76b0 c106f28f 00000000 00000000 00000001 f3ec8986 c697c108 cfbabd08 c10f457e c14de398 00000000 ce29bd80 000000fa e8593c00 Call Trace: [] ? _raw_spin_unlock_bh+0x18/0x20 [] ? __wake_up+0x3f/0x50 [] ? xlog_space_left+0x26/0xa0 [xfs] [] ? kmem_cache_alloc+0xae/0x110 [] ? rpc_release_client+0x78/0x80 [] ? xlog_grant_push_ail+0xa1/0xc0 [xfs] [] schedule+0x23/0x60 [] xlog_grant_head_wait+0x75/0x130 [xfs] [] xlog_grant_head_check+0x72/0xc0 [xfs] [] xfs_log_reserve+0xbf/0x160 [xfs] [] xfs_trans_reserve+0x214/0x220 [xfs] [] xfs_rename+0xeb/0x5a0 [xfs] [] ? inode_permission+0x16/0x50 [] ? filldir64+0x44/0x110 [] xfs_vn_rename+0x8b/0xa0 [xfs] [] vfs_rename+0x4fe/0x510 [] ? lookup_dcache+0x24/0xa0 [] SyS_renameat+0x21e/0x340 [] ? __do_page_fault+0x28f/0x4d0 [] SyS_rename+0x2d/0x30 [] syscall_call+0x7/0x7 From david@fromorbit.com Mon Aug 4 19:35:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BD56E7F78 for ; Mon, 4 Aug 2014 19:35:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2B631AC002 for ; Mon, 4 Aug 2014 17:35:20 -0700 (PDT) X-ASG-Debug-ID: 1407198918-04cb6c555f14d1d0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 7Jqn6Td3xQ2rSYxc for ; Mon, 04 Aug 2014 17:35:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As8GAM8l4FN5LKl0/2dsb2JhbABbgw2BKYInrBIBAQEBAQalBQGBFBd3hAQBBTocIxAIAw4KCSUPBSUDIROIQcRLFxiFZIkDTQeDL4EcBZwFlGCDXysvgQU Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail07.adl2.internode.on.net with ESMTP; 05 Aug 2014 10:04:53 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XESi8-0003Ah-Tl; Tue, 05 Aug 2014 10:34:40 +1000 Date: Tue, 5 Aug 2014 10:34:40 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140805003440.GB20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> <20140804124836.GA4049@bfoster.bfoster> <20140804221526.GZ20518@dastard> <20140805000333.GA27760@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140805000333.GA27760@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407198918 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8126 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 04, 2014 at 08:03:33PM -0400, Brian Foster wrote: > On Tue, Aug 05, 2014 at 08:15:26AM +1000, Dave Chinner wrote: > > On Mon, Aug 04, 2014 at 08:48:36AM -0400, Brian Foster wrote: > > > On Mon, Aug 04, 2014 at 06:09:30PM +1000, Dave Chinner wrote: > > > > On Fri, Aug 01, 2014 at 10:39:29AM -0400, Brian Foster wrote: > > > Fair point, an sb modification is something that should stand out. I > > > think the characteristic of the new api is somewhat subtle, however. > > > > Which is why there's a comment explaining it. Is there anything I > > can add to that comment to make it clearer? > > > > I would change this: > > /* > * ... > * > * Note this code can be called during the process of freezing, so > * we may need to use the transaction allocator which does not > * block when the transaction subsystem is in its frozen state. > */ > > ... to something like: > > /* > * ... > * > * Note that the caller is responsible for checking the frozen state of > * the filesystem. This procedure uses the non-blocking transaction > * allocator and thus will allow modifications to a frozen fs. This is > * required because this code can be called during the process of > * freezing where use of the high-level allocator would deadlock. > */ OK, I can do that. > > > > > I'm not sure of the mechanics behind that, but I'm > > > > > guessing some kind of reference remains on the sb of a frozen fs and a > > > > > subsequent umount/mount is purely namespace magic. Point being... this > > > > > appears to be implicit and confusing. IMO, using an _xfs_sync_sb() > > > > > variant that allocates a nonblocking tp if one isn't provided as a > > > > > parameter (for example) and using that only in the contexts we know it's > > > > > Ok to avoid freeze interaction issues might be more clear. > > > > > > > > Well, it was pretty clear to me that the code paths were free of > > > > freeze interactions. Looking at this - especially the quota on/off > > > > paths - I guess it's not as obvious as I thought it was... :/ > > > > > > > > > > My point was more geared towards future use. E.g., we have frozen fs > > > management built into transaction management, which is nice and clean > > > and easy to understand. > > > > Actually, it's nowhere near as clean as you think. :/ > > > > e.g. did you know that the xfs_fs_writable() check in > > xfs_log_sbcount() is to prevent it from writing anything when > > unmounting a fully frozen filesystem? i.e. xfs_log_sbcount needs to > > succeed while a freeze is in progress, but fail when a freeze is > > fully complete? > > > > Hmm, so freeze_super() sets s_frozen to SB_FREEZE_FS before it calls > into the fs. Given the xfs_fs_writable() logic, how is that going to > differentiate a freezing fs from a frozen fs? It makes sense that this > would avoid blocking on umount of a frozen fs, but it seems like we'd > skip out just the same during the freeze sequence. Maybe I'm missing > something... Hmmm - that means we broke it at some point. xfs_attr_quiesce is supposed to make the metadata uptodate on disk, so if it's not updating the superblock (i.e. syncing all the counters) then it's not doing the right thing - the sb counters on disk while the fs is frozen are not uptodate and hence correct behaviour if we crash with a frozen fs is dependent on log recovery finding a dirty log. That's a nasty little landmine and needs to be fixed, even though it's not causing issues at the moment (because we dirty the log after quiescing the filesystem). Did I mention this code is not at all obvious? :/ Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 4 20:18:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D6A977F81 for ; Mon, 4 Aug 2014 20:18:27 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B16F830404E for ; Mon, 4 Aug 2014 18:18:24 -0700 (PDT) X-ASG-Debug-ID: 1407201502-04bdf03d4416d850001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id BOshEQKw3MyQaIMS for ; Mon, 04 Aug 2014 18:18:22 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArwJACIw4FN5LKl0PGdsb2JhbABbgw2BKYInhQinCwEBAQEBBqUFAYEUFwUBAQEBODaEBAEFOhwjEAgDGAklDwUlAwcaE4hBxEQXGIVkiVAHgy+BHAEEjneNDpg/Ky8 Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail06.adl2.internode.on.net with ESMTP; 05 Aug 2014 10:48:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XETO5-0003I3-17; Tue, 05 Aug 2014 11:18:01 +1000 Date: Tue, 5 Aug 2014 11:18:00 +1000 From: Dave Chinner To: Bill Cc: xfs@oss.sgi.com Subject: Re: xfs hang in 3.14.15 Message-ID: <20140805011800.GC20518@dastard> X-ASG-Orig-Subj: Re: xfs hang in 3.14.15 References: <53E02495.4080208@sbcglobal.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E02495.4080208@sbcglobal.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1407201502 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8127 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 04, 2014 at 07:25:57PM -0500, Bill wrote: > Hi, > > I've been running a stress test on 3.14.15 and eventually my xfs > filesystem hangs. Both 3.10.50 and 3.16 seem to work ok. log space hang. 110dc24 xfs: log vector rounding leaks log space Cheers, Dave. -- Dave Chinner david@fromorbit.com From webmaster@dev101.magizz.com Tue Aug 5 02:08:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.1 required=5.0 tests=HTML_IMAGE_RATIO_04, HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 77AAE7F76 for ; Tue, 5 Aug 2014 02:08:31 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2A63E304053 for ; Tue, 5 Aug 2014 00:08:28 -0700 (PDT) X-ASG-Debug-ID: 1407222504-04bdf03d4217c430001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id WJoQdUZPoWup0FDv (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 00:08:24 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev101.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev101.magizz.com; s=default; h=Content-Type:MIME-Version:List-Owner:List-Subscribe:List-Unsubscribe:List-Help:Message-ID:Reply-To:From:Date:Subject:To; bh=gM3wc9DtemqsQqBX0o+hbbeD83hIXpcT0ItO89FOq9U=; b=fNRTgtd5HjMnTIDWnapHdNYE7Sfw75bCKGVZSFa9ti730nnwV4R52y9bJteoy16K9DqXzh5stKh6oq8/3A4VK+iiQ9Xq4faiFwnvzBP5dC5luTXN924xhCrnErAnwlTzYYdUG0U2Ytexsxxxxvh9xyuCNIXArPksQoDgdJG6Pqk=; Received: from dev101magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XEYrC-0000VM-Ce for xfs@oss.sgi.com; Tue, 05 Aug 2014 11:08:26 +0400 To: xfs@oss.sgi.com Subject: Best Deals for All Business Owners X-PHP-Script: dev101.magizz.com/mailz/admin/index.php for 122.169.9.116 X-ASG-Orig-Subj: Best Deals for All Business Owners Received: from abts-mum-dynamic-116.9.169.122.airtelbroadband.in [122.169.9.116] by dev101.magizz.com with HTTP; Tue, 05 Aug 2014 07:04:24 +0000 Date: Tue, 5 Aug 2014 07:08:26 +0000 From: Vistaprint Reply-To: Vistaprint Message-ID: <03bb72fdaaaae3fab513188568756adb@dev101.magizz.com> X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: 5 X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev101.magizz.com List-Help: List-Unsubscribe: List-Subscribe: List-Owner: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="b1_03bb72fdaaaae3fab513188568756adb" X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [502 513] / [47 12] X-AntiAbuse: Sender Address Domain - dev101.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev101magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1407222504 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.17 X-Barracuda-Spam-Status: No, SCORE=0.17 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_IMAGE_RATIO_04, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8127 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.17 HTML_IMAGE_RATIO_04 BODY: HTML has a low ratio of text to image area 0.00 HTML_MESSAGE BODY: HTML included in message --b1_03bb72fdaaaae3fab513188568756adb Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable =20 Make An Impression Every Time You Interact With Your Customers ! 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=0Aamj --b1_03bb72fdaaaae3fab513188568756adb-- From bfoster@redhat.com Tue Aug 5 07:31:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3F8F87F83 for ; Tue, 5 Aug 2014 07:31:04 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0F3A6304059 for ; Tue, 5 Aug 2014 05:31:01 -0700 (PDT) X-ASG-Debug-ID: 1407241859-04bdf03d42188a90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id sKalsXBE8mtwGxW8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 05:30:59 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75CUq5d002332 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 5 Aug 2014 08:30:52 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75CUqsJ003973; Tue, 5 Aug 2014 08:30:52 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 233CC12577C; Tue, 5 Aug 2014 08:30:51 -0400 (EDT) Date: Tue, 5 Aug 2014 08:30:51 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140805123050.GA53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> <20140804124836.GA4049@bfoster.bfoster> <20140804221526.GZ20518@dastard> <20140805000333.GA27760@bfoster.bfoster> <20140805003440.GB20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140805003440.GB20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407241859 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 05, 2014 at 10:34:40AM +1000, Dave Chinner wrote: > On Mon, Aug 04, 2014 at 08:03:33PM -0400, Brian Foster wrote: > > On Tue, Aug 05, 2014 at 08:15:26AM +1000, Dave Chinner wrote: > > > On Mon, Aug 04, 2014 at 08:48:36AM -0400, Brian Foster wrote: > > > > On Mon, Aug 04, 2014 at 06:09:30PM +1000, Dave Chinner wrote: > > > > > On Fri, Aug 01, 2014 at 10:39:29AM -0400, Brian Foster wrote: > > > > Fair point, an sb modification is something that should stand out. I > > > > think the characteristic of the new api is somewhat subtle, however. > > > > > > Which is why there's a comment explaining it. Is there anything I > > > can add to that comment to make it clearer? > > > > > > > I would change this: > > > > /* > > * ... > > * > > * Note this code can be called during the process of freezing, so > > * we may need to use the transaction allocator which does not > > * block when the transaction subsystem is in its frozen state. > > */ > > > > ... to something like: > > > > /* > > * ... > > * > > * Note that the caller is responsible for checking the frozen state of > > * the filesystem. This procedure uses the non-blocking transaction > > * allocator and thus will allow modifications to a frozen fs. This is > > * required because this code can be called during the process of > > * freezing where use of the high-level allocator would deadlock. > > */ > > OK, I can do that. > > > > > > > I'm not sure of the mechanics behind that, but I'm > > > > > > guessing some kind of reference remains on the sb of a frozen fs and a > > > > > > subsequent umount/mount is purely namespace magic. Point being... this > > > > > > appears to be implicit and confusing. IMO, using an _xfs_sync_sb() > > > > > > variant that allocates a nonblocking tp if one isn't provided as a > > > > > > parameter (for example) and using that only in the contexts we know it's > > > > > > Ok to avoid freeze interaction issues might be more clear. > > > > > > > > > > Well, it was pretty clear to me that the code paths were free of > > > > > freeze interactions. Looking at this - especially the quota on/off > > > > > paths - I guess it's not as obvious as I thought it was... :/ > > > > > > > > > > > > > My point was more geared towards future use. E.g., we have frozen fs > > > > management built into transaction management, which is nice and clean > > > > and easy to understand. > > > > > > Actually, it's nowhere near as clean as you think. :/ > > > > > > e.g. did you know that the xfs_fs_writable() check in > > > xfs_log_sbcount() is to prevent it from writing anything when > > > unmounting a fully frozen filesystem? i.e. xfs_log_sbcount needs to > > > succeed while a freeze is in progress, but fail when a freeze is > > > fully complete? > > > > > > > Hmm, so freeze_super() sets s_frozen to SB_FREEZE_FS before it calls > > into the fs. Given the xfs_fs_writable() logic, how is that going to > > differentiate a freezing fs from a frozen fs? It makes sense that this > > would avoid blocking on umount of a frozen fs, but it seems like we'd > > skip out just the same during the freeze sequence. Maybe I'm missing > > something... > > Hmmm - that means we broke it at some point. xfs_attr_quiesce is > supposed to make the metadata uptodate on disk, so if it's not > updating the superblock (i.e. syncing all the counters) then it's > not doing the right thing - the sb counters on disk while the fs is > frozen are not uptodate and hence correct behaviour if we crash with > a frozen fs is dependent on log recovery finding a dirty log. That's > a nasty little landmine and needs to be fixed, even though it's not > causing issues at the moment (because we dirty the log after > quiescing the filesystem). > I'm wondering if that even helps in the case of a crash. It looks like we would skip the counter sync and subsequent action of logging the sb entirely. Oh, according to the lazy sb counter commit log description we do some kind of counter rebuild across the AGI/AGF structures and log the result of that. So I take it that should a crash occur while in the frozen state, the simple act of causing a log recovery to occur on subsequent mount should rebuild everything correctly. > Did I mention this code is not at all obvious? :/ > Heh. :P From what I can see, it looks like this has been the case since commit 92821e2b, which introduced xfs_log_sbcount(). That goes way back... there's a vfs_test_for_freeze() macro (xfs_vfs.h) used by xfs_fs_writable() that looks like this: #define vfs_test_for_freeze(vfs) ((vfs)->vfs_super->s_frozen) ... and SB_FREEZE_TRANS is set before a ->write_super_lockfs() call into the fs. The mechanism looks to have changed quite a bit since then, though. Perhaps xfs_log_sbcount() requires an open coded s_frozen check a la the _xfs_trans_alloc() logic. E.g., skip out of SB_FREEZE_COMPLETE, proceed otherwise..? Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 5 08:16:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DC7F47F85 for ; Tue, 5 Aug 2014 08:16:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id BA7BA304064 for ; Tue, 5 Aug 2014 06:16:08 -0700 (PDT) X-ASG-Debug-ID: 1407244567-04cb6c555c166d00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id J1IJnAGFHlowgR4x (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 06:16:07 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75DG6sn021890 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 5 Aug 2014 09:16:07 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75DG6da031507; Tue, 5 Aug 2014 09:16:06 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 4EE3A12577C; Tue, 5 Aug 2014 09:16:05 -0400 (EDT) Date: Tue, 5 Aug 2014 09:16:05 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/6] xfs_io: free fshandlep in parent_check() Message-ID: <20140805131604.GB53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs_io: free fshandlep in parent_check() References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> <1406905159-12415-2-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406905159-12415-2-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407244567 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 01, 2014 at 09:59:14AM -0500, Eric Sandeen wrote: > The allocated fshandle wasn't freed in either normal > exit or error paths. > > Do this, and consolidate cleanup into an out: target. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > io/parent.c | 7 ++++--- > 1 files changed, 4 insertions(+), 3 deletions(-) > > diff --git a/io/parent.c b/io/parent.c > index ca989e9..56e126d 100644 > --- a/io/parent.c > +++ b/io/parent.c > @@ -258,9 +258,8 @@ parent_check(void) > if (!bstatbuf || !parentbuf) { > fprintf(stderr, _("unable to allocate buffers: %s\n"), > strerror(errno)); > - free(bstatbuf); > - free(parentbuf); > - return 1; > + err_status = 1; > + goto out; > } > > if (do_bulkstat(parentbuf, &parentbuf_size, bstatbuf, fsfd, fshandlep) != 0) > @@ -272,8 +271,10 @@ parent_check(void) > printf(_("succeeded checking %llu inodes\n"), > (unsigned long long) inodes_checked); > > +out: > free(bstatbuf); > free(parentbuf); > + free(fshandlep); > return err_status; > } > > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 5 08:16:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E5CE27F85 for ; Tue, 5 Aug 2014 08:16:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 71955AC005 for ; Tue, 5 Aug 2014 06:16:22 -0700 (PDT) X-ASG-Debug-ID: 1407244580-04cbb02d83174cb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AJBe3UkXtmWJLdja (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 06:16:21 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75DGKcM001449 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 5 Aug 2014 09:16:20 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75DGJKR010900; Tue, 5 Aug 2014 09:16:20 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 063D512577C; Tue, 5 Aug 2014 09:16:18 -0400 (EDT) Date: Tue, 5 Aug 2014 09:16:18 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs_fsr: fix leaks & catch error in fsrfile() Message-ID: <20140805131618.GC53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs_fsr: fix leaks & catch error in fsrfile() References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> <1406905159-12415-3-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406905159-12415-3-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407244580 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 01, 2014 at 09:59:15AM -0500, Eric Sandeen wrote: > The allocated fshandlep leaks on most error paths; > restructure with an out: target that does all necessary > freeing, and initialize filehandles to -1 so that we > know whether they need to be closed on the error path. > > While we're at it, if gettmpname() fails, we still > return 0 for an error, because error is initialized > to 0 and only set otherwise by fsrfile_common. > So if gettmpname() fails, we return success from the > function even though we did no work. Fix that > as well by initializing error to -1. > > Signed-off-by: Eric Sandeen > --- > fsr/xfs_fsr.c | 28 ++++++++++++++-------------- > 1 files changed, 14 insertions(+), 14 deletions(-) > > diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c > index 48629fd..752d2db 100644 > --- a/fsr/xfs_fsr.c > +++ b/fsr/xfs_fsr.c > @@ -809,15 +809,15 @@ fsrfile(char *fname, xfs_ino_t ino) > { > xfs_bstat_t statbuf; > jdm_fshandle_t *fshandlep; > - int fd, fsfd; > - int error = 0; > + int fd = -1, fsfd = -1; > + int error = -1; > char *tname; > > fshandlep = jdm_getfshandle(getparent (fname) ); > - if (! fshandlep) { > + if (!fshandlep) { > fsrprintf(_("unable to construct sys handle for %s: %s\n"), > fname, strerror(errno)); > - return -1; > + goto out; > } > > /* > @@ -828,39 +828,39 @@ fsrfile(char *fname, xfs_ino_t ino) > if (fsfd < 0) { > fsrprintf(_("unable to open sys handle for %s: %s\n"), > fname, strerror(errno)); > - return -1; > + goto out; > } > > if ((xfs_bulkstat_single(fsfd, &ino, &statbuf)) < 0) { > fsrprintf(_("unable to get bstat on %s: %s\n"), > fname, strerror(errno)); > - close(fsfd); > - return -1; > + goto out; > } > > fd = jdm_open(fshandlep, &statbuf, O_RDWR|O_DIRECT); > if (fd < 0) { > fsrprintf(_("unable to open handle %s: %s\n"), > fname, strerror(errno)); > - close(fsfd); > - return -1; > + goto out; > } > > /* Get the fs geometry */ > if (xfs_getgeom(fsfd, &fsgeom) < 0 ) { > fsrprintf(_("Unable to get geom on fs for: %s\n"), fname); > - close(fsfd); > - return -1; > + goto out; > } > > - close(fsfd); > - > tname = gettmpname(fname); > > if (tname) > error = fsrfile_common(fname, tname, NULL, fd, &statbuf); > I was wondering whether this bit to not fail if the path is bad was intentional (e.g., to avoid breaking through a higher-level loop or something), but we don't check the return value of this function anyways. :-| Reviewed-by: Brian Foster > - close(fd); > +out: > + if (fsfd >= 0) > + close(fsfd); > + if (fd >= 0) > + close(fd); > + free(fshandlep); > > return error; > } > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 5 08:16:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E74527F8C for ; Tue, 5 Aug 2014 08:16:31 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D5446304064 for ; Tue, 5 Aug 2014 06:16:31 -0700 (PDT) X-ASG-Debug-ID: 1407244590-04cb6c555e166d50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id d6U9G9SyIBlO22Jy (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 06:16:31 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75DGUrQ003959 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 5 Aug 2014 09:16:30 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75DGTo5028590; Tue, 5 Aug 2014 09:16:30 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 08E1012577C; Tue, 5 Aug 2014 09:16:29 -0400 (EDT) Date: Tue, 5 Aug 2014 09:16:28 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/6] xfs_fsr: free handlep in fsrfs Message-ID: <20140805131628.GD53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs_fsr: free handlep in fsrfs References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> <1406905159-12415-4-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406905159-12415-4-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407244590 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 01, 2014 at 09:59:16AM -0500, Eric Sandeen wrote: > We leaked the fshandlep in both error returns and > normal function exit. > > Signed-off-by: Eric Sandeen > --- Same thing in the 'if (endtime && endtime < time(0))' thing towards the end of the for loop, but that ends with an exit(), so: Reviewed-by: Brian Foster > fsr/xfs_fsr.c | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c > index 752d2db..580604c 100644 > --- a/fsr/xfs_fsr.c > +++ b/fsr/xfs_fsr.c > @@ -702,6 +702,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) > if ((fsfd = open(mntdir, O_RDONLY)) < 0) { > fsrprintf(_("unable to open: %s: %s\n"), > mntdir, strerror( errno )); > + free(fshandlep); > return -1; > } > > @@ -709,6 +710,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) > fsrprintf(_("Skipping %s: could not get XFS geometry\n"), > mntdir); > close(fsfd); > + free(fshandlep); > return -1; > } > > @@ -774,6 +776,7 @@ fsrfs(char *mntdir, xfs_ino_t startino, int targetrange) > out0: > tmp_close(mntdir); > close(fsfd); > + free(fshandlep); > return 0; > } > > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 5 08:31:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DB32E7F88 for ; Tue, 5 Aug 2014 08:31:46 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C93FB8F8037 for ; Tue, 5 Aug 2014 06:31:43 -0700 (PDT) X-ASG-Debug-ID: 1407245502-04cbb02d831760a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id drid8jKrkJJTavRE (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 06:31:43 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75DVgTt021131 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 5 Aug 2014 09:31:42 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75DVfUO005877; Tue, 5 Aug 2014 09:31:42 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id F292512577C; Tue, 5 Aug 2014 09:31:40 -0400 (EDT) Date: Tue, 5 Aug 2014 09:31:40 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/6] libhandle: Fix handle leak in path_to_fshandle error paths Message-ID: <20140805133140.GE53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 4/6] libhandle: Fix handle leak in path_to_fshandle error paths References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> <1406905159-12415-5-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406905159-12415-5-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407245502 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 01, 2014 at 09:59:17AM -0500, Eric Sandeen wrote: > path_to_fshandle calls obj_to_handle, which potentially > allocates a handle, but the handle isn't freed on > a subsequent error path. > > Signed-off-by: Eric Sandeen > --- > libhandle/handle.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/libhandle/handle.c b/libhandle/handle.c > index 9f81483..3c1395a 100644 > --- a/libhandle/handle.c > +++ b/libhandle/handle.c > @@ -97,6 +97,7 @@ path_to_fshandle( > /* new filesystem. add it to the cache */ > fdhp = malloc(sizeof(struct fdhash)); > if (fdhp == NULL) { > + free(*fshanp); Might be a good idea to set *fshanp back to NULL here. It doesn't appear to be an issue with current callers, however: Reviewed-by: Brian Foster > close(fd); > errno = ENOMEM; > return -1; > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 5 08:31:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 22B617F91 for ; Tue, 5 Aug 2014 08:31:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0FAD28F8037 for ; Tue, 5 Aug 2014 06:31:51 -0700 (PDT) X-ASG-Debug-ID: 1407245509-04cb6c555d1679e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id qo70brVD5BF2rJRs (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 06:31:50 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75DVnQq010181 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 5 Aug 2014 09:31:49 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75DVmWW008615; Tue, 5 Aug 2014 09:31:48 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D2B9612577C; Tue, 5 Aug 2014 09:31:47 -0400 (EDT) Date: Tue, 5 Aug 2014 09:31:47 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/6] xfs_io: fix leaks in parent_list() Message-ID: <20140805133147.GF53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 5/6] xfs_io: fix leaks in parent_list() References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> <1406905159-12415-6-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406905159-12415-6-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407245509 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 01, 2014 at 09:59:18AM -0500, Eric Sandeen wrote: > parent_list() has instances where a handle is leaked, > both by going out of scope, and on error paths. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > io/parent.c | 6 ++++-- > 1 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/io/parent.c b/io/parent.c > index 56e126d..0313119 100644 > --- a/io/parent.c > +++ b/io/parent.c > @@ -293,7 +293,7 @@ print_parent_entry(parent_t *parent, int fullpath) > static int > parent_list(int fullpath) > { > - void *handlep; > + void *handlep = NULL; > size_t handlen; > int error, i; > int retval = 1; > @@ -313,6 +313,7 @@ parent_list(int fullpath) > progname, path, strerror(errno)); > goto error; > } > + free_handle(fshandle, fshlen); > } > > if (path_to_handle(path, &handlep, &handlen) != 0) { > @@ -325,7 +326,7 @@ parent_list(int fullpath) > if (!parentbuf) { > fprintf(stderr, _("%s: unable to allocate parent buffer: %s\n"), > progname, strerror(errno)); > - return 1; > + goto error; > } > > if (fullpath) { > @@ -365,6 +366,7 @@ parent_list(int fullpath) > > retval = 0; > error: > + free(handlep); > free(parentbuf); > return retval; > } > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 5 08:31:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3B6ED7F96 for ; Tue, 5 Aug 2014 08:31:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id BC2B0AC006 for ; Tue, 5 Aug 2014 06:31:56 -0700 (PDT) X-ASG-Debug-ID: 1407245515-04cb6c555f167a00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id bW473NbznPlNCkq8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 06:31:55 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s75DVsDT000683 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 5 Aug 2014 09:31:55 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s75DVsnh009798; Tue, 5 Aug 2014 09:31:54 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 85CC912577C; Tue, 5 Aug 2014 09:31:53 -0400 (EDT) Date: Tue, 5 Aug 2014 09:31:53 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs@oss.sgi.com Subject: Re: [PATCH 6/6] xfs_db: free flist on error in write_struct() Message-ID: <20140805133153.GG53538@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 6/6] xfs_db: free flist on error in write_struct() References: <1406905159-12415-1-git-send-email-sandeen@redhat.com> <1406905159-12415-7-git-send-email-sandeen@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1406905159-12415-7-git-send-email-sandeen@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407245515 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 01, 2014 at 09:59:19AM -0500, Eric Sandeen wrote: > One error path in write_struct() wasn't freeing > the flist_t *fl which was allocated, so it leaks. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > db/write.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/db/write.c b/db/write.c > index 0157a44..a0f14f4 100644 > --- a/db/write.c > +++ b/db/write.c > @@ -652,6 +652,7 @@ write_struct( > buf = convert_arg(argv[1], bit_length); > if (!buf) { > dbprintf(_("unable to convert value '%s'.\n"), argv[1]); > + flist_free(fl); > return; > } > > -- > 1.7.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sanderwazir10@gmail.com Tue Aug 5 13:09:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FORGED_HOTMAIL_RCVD2, FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 38F527F90 for ; Tue, 5 Aug 2014 13:09:51 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C9D16AC006 for ; Tue, 5 Aug 2014 11:09:47 -0700 (PDT) X-ASG-Debug-ID: 1407262185-04bdf06ed203ed0001-NocioJ Received: from mail-vc0-f193.google.com (mail-vc0-f193.google.com [209.85.220.193]) by cuda.sgi.com with ESMTP id 4GyI8BcNyEBWTzIk (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; 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--001a11c310665fad5404ffe56434-- From david@fromorbit.com Tue Aug 5 14:59:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 164127F90 for ; Tue, 5 Aug 2014 14:59:17 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E9C10304053 for ; Tue, 5 Aug 2014 12:59:13 -0700 (PDT) X-ASG-Debug-ID: 1407268748-04cb6c75ad08660001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id TvXQWb0Ep2nI52S9 for ; Tue, 05 Aug 2014 12:59:08 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApMHACY24VN5LKl0PGdsb2JhbABbgw2BKYcupwABAQEBBqUGAYEVFwUBAQEBODaEAwEBBAE6HCMFCwgDDgoJJQ8FJQMHGhOIOgfDbBcYhWSJUAeESwWOe40RmEErLw Received: from ppp121-44-169-116.lns20.syd7.internode.on.net (HELO dastard) ([121.44.169.116]) by ipmail06.adl6.internode.on.net with ESMTP; 06 Aug 2014 05:29:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XEkt0-0005wc-6E; Wed, 06 Aug 2014 05:59:06 +1000 Date: Wed, 6 Aug 2014 05:59:06 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140805195906.GY26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> <20140804124836.GA4049@bfoster.bfoster> <20140804221526.GZ20518@dastard> <20140805000333.GA27760@bfoster.bfoster> <20140805003440.GB20518@dastard> <20140805123050.GA53538@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140805123050.GA53538@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407268748 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8147 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 05, 2014 at 08:30:51AM -0400, Brian Foster wrote: > On Tue, Aug 05, 2014 at 10:34:40AM +1000, Dave Chinner wrote: > > On Mon, Aug 04, 2014 at 08:03:33PM -0400, Brian Foster wrote: > > > On Tue, Aug 05, 2014 at 08:15:26AM +1000, Dave Chinner wrote: > > > > e.g. did you know that the xfs_fs_writable() check in > > > > xfs_log_sbcount() is to prevent it from writing anything when > > > > unmounting a fully frozen filesystem? i.e. xfs_log_sbcount needs to > > > > succeed while a freeze is in progress, but fail when a freeze is > > > > fully complete? > > > > > > > > > > Hmm, so freeze_super() sets s_frozen to SB_FREEZE_FS before it calls > > > into the fs. Given the xfs_fs_writable() logic, how is that going to > > > differentiate a freezing fs from a frozen fs? It makes sense that this > > > would avoid blocking on umount of a frozen fs, but it seems like we'd > > > skip out just the same during the freeze sequence. Maybe I'm missing > > > something... > > > > Hmmm - that means we broke it at some point. xfs_attr_quiesce is > > supposed to make the metadata uptodate on disk, so if it's not > > updating the superblock (i.e. syncing all the counters) then it's > > not doing the right thing - the sb counters on disk while the fs is > > frozen are not uptodate and hence correct behaviour if we crash with > > a frozen fs is dependent on log recovery finding a dirty log. That's > > a nasty little landmine and needs to be fixed, even though it's not > > causing issues at the moment (because we dirty the log after > > quiescing the filesystem). > > > > I'm wondering if that even helps in the case of a crash. It looks like > we would skip the counter sync and subsequent action of logging the sb > entirely. > > Oh, according to the lazy sb counter commit log description we do some > kind of counter rebuild across the AGI/AGF structures and log the result > of that. So I take it that should a crash occur while in the frozen > state, the simple act of causing a log recovery to occur on subsequent > mount should rebuild everything correctly. Right - it's log recovery that is hiding that little gem. We've been talking about whether we can change freeze to leave the log clean and so avoid the need for log recovery in snapshot images. If we did that, then we'd have exposed this bug.... > > Did I mention this code is not at all obvious? :/ > > > > Heh. :P From what I can see, it looks like this has been the case since > commit 92821e2b, which introduced xfs_log_sbcount(). *nod* > Perhaps xfs_log_sbcount() requires an open coded s_frozen check a la > the _xfs_trans_alloc() logic. E.g., skip out of SB_FREEZE_COMPLETE, > proceed otherwise..? Possibly. But it still also needs the RO and shutdown checks. Perhaps passing xfs_fs_writable() a freeze level and checking against that? Cheers, Dave. -- Dave Chinner david@fromorbit.com From hans@hanshq.net Tue Aug 5 23:44:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 49ACA7F58 for ; Tue, 5 Aug 2014 23:44:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2611C304064 for ; Tue, 5 Aug 2014 21:44:30 -0700 (PDT) X-ASG-Debug-ID: 1407300267-04cbb03b9c1bf40001-NocioJ Received: from s87.loopia.se (s87.loopia.se [194.9.94.112]) by cuda.sgi.com with ESMTP id yjvCA7m70iwltkNd (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 05 Aug 2014 21:44:28 -0700 (PDT) X-Barracuda-Envelope-From: hans@hanshq.net X-Barracuda-Apparent-Source-IP: 194.9.94.112 Received: from s87.loopia.se (localhost [127.0.0.1]) by s87.loopia.se (Postfix) with ESMTP id DE6E61CF4CFE; Wed, 6 Aug 2014 06:44:26 +0200 (CEST) X-Virus-Scanned: amavisd-new at outgoing-smtp.loopia.se Received: from s87.loopia.se ([127.0.0.1]) by s87.loopia.se (s87.loopia.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id AJ_g23kLzzD1; Wed, 6 Aug 2014 06:44:26 +0200 (CEST) Received: from s498.loopia.se (unknown [172.21.200.96]) by s87.loopia.se (Postfix) with ESMTP id A5E2C1CF4CF6; Wed, 6 Aug 2014 06:44:26 +0200 (CEST) Received: from s405.loopia.se (unknown [172.21.200.105]) by s498.loopia.se (Postfix) with ESMTP id A0403C52AD3; Wed, 6 Aug 2014 06:44:26 +0200 (CEST) X-Virus-Scanned: amavisd-new at amavis.loopia.se Received: from s499.loopia.se ([172.21.200.105]) by s405.loopia.se (s405.loopia.se [172.21.200.135]) (amavisd-new, port 10024) with LMTP id bGu3thrE0yYK; Wed, 6 Aug 2014 06:44:25 +0200 (CEST) Received: from hwennborg.mtv.corp.google.com (unknown [216.239.45.94]) (Authenticated sender: out@wennborg.se) by s499.loopia.se (Postfix) with ESMTPSA id 5816F1533855; Wed, 6 Aug 2014 06:44:24 +0200 (CEST) From: Hans Wennborg To: david@fromorbit.com, xfs@oss.sgi.com, linux-kernel@vger.kernel.org Cc: Hans Wennborg Subject: [PATCH 14/15] xfs: fix decimal printf format specifiers prefixed with 0x Date: Tue, 5 Aug 2014 21:44:16 -0700 X-ASG-Orig-Subj: [PATCH 14/15] xfs: fix decimal printf format specifiers prefixed with 0x Message-Id: <1407300256-495-1-git-send-email-hans@hanshq.net> X-Mailer: git-send-email 2.0.0.526.g5318336 X-Barracuda-Connect: s87.loopia.se[194.9.94.112] X-Barracuda-Start-Time: 1407300268 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8165 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- The prefix suggests the number should be printed in hex, so use the %x specifier to do that. Found by using regex suggested by Joe Perches. Signed-off-by: Hans Wennborg --- fs/xfs/xfs_discard.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c index 13d08a1..b4a2415 100644 --- a/fs/xfs/xfs_discard.c +++ b/fs/xfs/xfs_discard.c @@ -228,7 +228,7 @@ xfs_discard_extents( GFP_NOFS, 0); if (error && error != -EOPNOTSUPP) { xfs_info(mp, - "discard failed for extent [0x%llu,%u], error %d", + "discard failed for extent [0x%llx,%u], error %d", (unsigned long long)busyp->bno, busyp->length, error); -- 2.0.0.526.g5318336 From alex@zadarastorage.com Wed Aug 6 03:56:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B567E7F63 for ; Wed, 6 Aug 2014 03:56:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A2FC78F8035 for ; Wed, 6 Aug 2014 01:56:28 -0700 (PDT) X-ASG-Debug-ID: 1407315383-04cbb03b9a25250001-NocioJ Received: from mail-we0-f181.google.com (mail-we0-f181.google.com [74.125.82.181]) by cuda.sgi.com with ESMTP id w2VN4aD0cx55anXM (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 01:56:23 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 74.125.82.181 Received: by mail-we0-f181.google.com with SMTP id k48so2336065wev.12 for ; Wed, 06 Aug 2014 01:56:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=jN1OHHosFgxGeX+yj20rl9ZSOSB7VWh+fwB1qvc7BqA=; b=JoHYP2aSRFvNmy/+WdLH+sBhToxVs6yNchmpdmH0ThLz+KxZcA1XmZSvOeEkPLkXFe xWknuB7pynCdcLPm4jOnyiK+ZD0RC5TH/JMSv7xy71ZfLOEDqs6PoqUG+rNjclkN/XZ+ BdwEXpDNqDTxQqhy95D/2G9f1A6cKloV6j8FVKgYKWzVvw+nieQHPC5tPMzU0o5ctbV5 v28HfMhPqW1hzL5MpsgiBpb0nnsBfHOUKZpGyo1YABaYG10pRtP8VXdw95EU9qxdCCg0 o+bSBOkLnKYNScA+833T1fXK4l/RpV5djhjgNicfIGVIQCOJRO4Y4iy9t6sluVv+STxF qjvg== X-Gm-Message-State: ALoCoQkjqyMU853JzlFTQmL+mL95me/tH1SPnHs3MjDqwD8uS7LSqI1ZqrYxvFWd01Lb3hxtIjMs X-Received: by 10.194.59.42 with SMTP id w10mr13926508wjq.15.1407315382715; Wed, 06 Aug 2014 01:56:22 -0700 (PDT) Received: from alyakaslap ([212.143.144.103]) by mx.google.com with ESMTPSA id 20sm888605wjt.42.2014.08.06.01.56.21 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 06 Aug 2014 01:56:22 -0700 (PDT) Message-ID: <9A75EE5EE1C3431EAB982257E1CBDC4D@alyakaslap> From: "Alex Lyakas" To: "Eric Sandeen" Cc: , "Dave Chinner" References: <20131226230018.GJ20579@dastard> <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <20140701215626.GE9508@dastard> <53DFCDA4.9000605@sandeen.net> In-Reply-To: <53DFCDA4.9000605@sandeen.net> Subject: Re: xfs_growfs_data_private memory leak Date: Wed, 6 Aug 2014 11:56:25 +0300 X-ASG-Orig-Subj: Re: xfs_growfs_data_private memory leak MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-we0-f181.google.com[74.125.82.181] X-Barracuda-Start-Time: 1407315383 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8171 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Eric, What I was trying to achieve is to allow aborting XFS resize in the middle. I am not sure whether a typical user needs this feature, but for my use case it is needed. So XFS resize is performed in two steps: 1) Initialize the newly-added AGs (AGFL, BNO btree, CNT btree etc) 2) Commit this by updating the primary superblock 3) Update all the existing secondary superblocks, and initialize all the newly-added secondary superblocks So I added a custom IOCTL, which can tell this sequence to abort gracefully (just checking a flag on each loop iteration). Aborting during step 1 works perfectly (apart from the memory leak that I discovered and fixed). Since the primary superblock has not been updated, XFS doesn't know about the newly-added AGs, so it doesn't care what's written there. Resize can be restarted, and XFS will redo this step from the beginning. Aborting during step 3 can leave some of the secondary superblocks totally uninitialized. However, from XFS standpoint, the resize has been committed already. That's where my question came from. I realize that kernel can crash during step 3, leading to same results as with my code that aborts this step. Anyways, since I was not sure about these secondary superblocks, I did not add an exit point at this step. (Again, realize that we can crash during this step anyways). Thanks, Alex. -----Original Message----- From: Eric Sandeen Sent: 04 August, 2014 9:15 PM To: Alex Lyakas ; Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: xfs_growfs_data_private memory leak On 7/2/14, 7:27 AM, Alex Lyakas wrote: > Hi Dave, > Thank you for your comments. > > I realize that secondary superblocks are needed mostly for repairing s/mostly/only/ > a broken filesystem. However, I don't see that they get updated > regularly, i.e., during normal operation they don't seem to get > updated at all. I put a print in xfs_sb_write_verify, and it gets > called only with: bp->b_bn==XFS_SB_DADDR. See the comments above verify_sb(): not everything is validated, so not everything needs to be constantly updated. It's just the basic fs geometry, not counters, etc. /* * verify a superblock -- does not verify root inode # * can only check that geometry info is internally * consistent. because of growfs, that's no guarantee * of correctness (e.g. geometry may have changed) * * fields verified or consistency checked: * * sb_magicnum * * sb_versionnum * * sb_inprogress * * sb_blocksize (as a group) * sb_blocklog * * geometry info - sb_dblocks (as a group) * sb_agcount * sb_agblocks * sb_agblklog * * inode info - sb_inodesize (x-checked with geo info) * sb_inopblock * * sector size info - * sb_sectsize * sb_sectlog * sb_logsectsize * sb_logsectlog * * not checked here - * sb_rootino * sb_fname * sb_fpack * sb_logstart * sb_uuid * * ALL real-time fields * final 4 summary counters */ > So do I understand correctly (also from comments in > xfs_growfs_data_private), that it is safe to operate a filesystem > while having broken secondary superblocks? For me, it appears to > mount properly, and all the data seems to be there, but xfs_check > complains like: > bad sb magic # 0xc2a4baf2 in ag 6144 > bad sb version # 0x4b5d in ag 6144 > blocks 6144/65536..2192631388 out of range > blocks 6144/65536..2192631388 claimed by block 6144/0 > bad sb magic # 0xb20f3079 in ag 6145 > bad sb version # 0x6505 in ag 6145 > blocks 6145/65536..3530010017 out of range > blocks 6145/65536..3530010017 claimed by block 6145/0 > ... some of that looks more serious than "just" bad backup sb's. But the bad secondaries shouldn't cause runtime problems AFAIK. > Also, if secondary superblocks do not get updated regularly, and > there is no way to ask an operational XFS to update them, then during > repair we may not find a good secondary superblock. You seem to have 6144 (!) allocation groups; one would hope that a majority of those supers would be "good" and the others will be properly corrected by an xfs_repair. > As for the patch, I cannot post a patch against the upstream kernel, > because I am running an older kernel. Unfortunately, I cannot qualify > an upstream patch properly in a reasonable time. Is there a value in > posting a patch against 3.8.13? Otherwise, it's fine by me if > somebody else posts it and takes the credit. If the patch applies cleanly to both kernels, probably fine to go ahead and post it, with that caveat. -Eric > Thanks, > Alex. > > > > -----Original Message----- From: Dave Chinner > Sent: 02 July, 2014 12:56 AM > To: Alex Lyakas > Cc: xfs@oss.sgi.com > Subject: Re: xfs_growfs_data_private memory leak > > On Tue, Jul 01, 2014 at 06:06:38PM +0300, Alex Lyakas wrote: >> Greetings, >> >> It appears that if xfs_growfs_data_private fails during the "new AG >> headers" loop, it does not free all the per-AG structures for the >> new AGs. When XFS is unmounted later, they are not freed as well, >> because xfs_growfs_data_private did not update the "sb_agcount" >> field, so xfs_free_perag will not free them. This happens on 3.8.13, >> but looking at the latest master branch, it seems to have the same >> issue. >> >> Code like [1] in xfs_growfs_data, seems to fix the issue. > > Why not just do this in the appropriate error stack, like is > done inside xfs_initialize_perag() on error? > > for (i = oagcount; i < nagcount; i++) { > pag = radix_tree_delete(&mp->m_perag_tree, index); > kmem_free(pag); > } > > (though it might need RCU freeing) > > When you have a fix, can you send a proper patch with a sign-off on > it? > >> A follow-up question: if xfs_grows_data_private fails during the >> loop that updates all the secondary superblocks, what is the >> consequence? (I am aware that in the latest master branch, the loop >> is not broken on first error, but attempts to initialize whatever >> possible). When these secondary superblocks will get updated? Is >> there a way to force-update them? Otherwise, what can be the >> consequence of leaving them not updated? > > The consequence is documented in mainline tree - if we don't update > them all, then repair will do the wrong thing. Repair requires a > majority iof identical secondaries to determine if the primary is > correct or out of date. The old behaviour of not updating after the > first error meant that the majority were old superblocks and so at > some time in the future repair could decide your filesystem is > smaller than it really is and hence truncate away the grown section > of the filesystem. i.e. trigger catastrophic, unrecoverable data > loss. > > Hence it's far better to write every seconday we can than to leave > a majority in a bad state.... > > Cheers, > > Dave. From alex@zadarastorage.com Wed Aug 6 05:05:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 11B367F87 for ; Wed, 6 Aug 2014 05:05:42 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F30618F8035 for ; Wed, 6 Aug 2014 03:05:38 -0700 (PDT) X-ASG-Debug-ID: 1407319535-04cb6c75ae27660001-NocioJ Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by cuda.sgi.com with ESMTP id 0HwFjvCngxAtWeOb (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 03:05:36 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.172 Received: by mail-wi0-f172.google.com with SMTP id n3so8477140wiv.11 for ; Wed, 06 Aug 2014 03:05:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=INVrnozw/jUMxIJIlLX6YBHVMcmtBj/46ymOdCOcqZo=; b=TaRV3G3rvMEWej/lkmeVbYlZBGz/hQ8xd+lkg2d2QEXdxYbD38erWldzafVyPeQkyx IWESlaYT9Ru3iw8pJCv5gpuVUiCmTRfi4iuA5GggJEjSNBIns34r5F9M4nYqPgXFF1Yu gKUzBiRMvT17cbxunkMrWLccBe6R/PUPGB3bzi6sT9IHYqEzuFZrdUrTVGrLKQBvmLFL cFD5i1jbU8xHY6ILzS3GC9/GsFFvXVYpPB6OlaOaivJ1Iem6taiWpSrCawX1rtbO1crX uFb1PLwGURlnc6GNhk7qv7umZCOBDvBajNW4cOy/tl4EfxpHOHRZng0hfgtXD/aj80UQ 3euQ== X-Gm-Message-State: ALoCoQnAyQ6Nn89EshbTgweVd8nq3d8EwCEmyIQqurCVJSQ3EKH9lrKkHV+XkiXegComTXGQA1EK MIME-Version: 1.0 X-Received: by 10.180.21.235 with SMTP id y11mr14326508wie.75.1407319534987; Wed, 06 Aug 2014 03:05:34 -0700 (PDT) Received: by 10.194.15.232 with HTTP; Wed, 6 Aug 2014 03:05:34 -0700 (PDT) In-Reply-To: <20140804230721.GA20518@dastard> References: <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> Date: Wed, 6 Aug 2014 13:05:34 +0300 Message-ID: Subject: Re: use-after-free on log replay failure From: Alex Lyakas X-ASG-Orig-Subj: Re: use-after-free on log replay failure To: Dave Chinner Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wi0-f172.google.com[209.85.212.172] X-Barracuda-Start-Time: 1407319536 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8172 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words Hi Dave, On Tue, Aug 5, 2014 at 2:07 AM, Dave Chinner wrote: > On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: >> Greetings, >> >> we had a log replay failure due to some errors that the underlying >> block device returned: >> [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 >> ("xlog_recover_iodone") error 28 numblks 16 >> [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 >> [49133.802644] XFS (dm-95): log mount failed > > #define ENOSPC 28 /* No space left on device */ > > You're getting an ENOSPC as a metadata IO error during log recovery? > Thin provisioning problem, perhaps, Yes, it is a thin provisioning problem (which I already know the cause for). > and the error is occurring on > submission rather than completion? If so: > > 8d6c121 xfs: fix buffer use after free on IO error I am not sure what do you mean by "submission rather than completion". Do you mean that xfs_buf_ioapply_map() returns without submitting any bios? In that case, no, bios are submitted to the block device, and it fails them through a different context with ENOSPC error. I will still try the patch you mentioned, because it also looks relevant to another question I addressed to you earlier in: http://oss.sgi.com/archives/xfs/2013-11/msg00648.html Thanks, Alex. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From webmaster@dev102.magizz.com Wed Aug 6 05:06:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.2 required=5.0 tests=HTML_IMAGE_ONLY_32, HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4F4837F87 for ; Wed, 6 Aug 2014 05:06:39 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3B9BD8F8035 for ; Wed, 6 Aug 2014 03:06:39 -0700 (PDT) X-ASG-Debug-ID: 1407319596-04cbb03b9a27ff0001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id yMNcnOIhyo0HAEMp (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 03:06:37 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev102.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev102.magizz.com; s=default; h=Content-Type:MIME-Version:List-Owner:List-Subscribe:List-Unsubscribe:List-Help:Message-ID:Reply-To:From:Date:Subject:To; bh=qFHFI+nbU8YS/LJu8tnkHtR+GEnDQfHybLFZT/lnMcU=; b=kTdZ/CAG4F1nA7jwrtiHhg0Cv16e1Z8eHU6SdXAPEpDBAsPdrdD1WsLohQbEp6r62N4PQjOytubUhDXlXCRGw8bLi2xwMTiIBTPg8QQToaVIw9bW8/SpWh6XQdwauxM8S9JRELGuhcWIuPJ7NOUUOPOoYwG//Ee3wgSVfNd80GI=; Received: from dev102magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XEy7D-0006gb-4j for xfs@oss.sgi.com; Wed, 06 Aug 2014 14:06:39 +0400 To: xfs@oss.sgi.com Subject: Benefit with nil prepayment charges on your online Personal Loan X-PHP-Script: dev102.magizz.com/mailz/admin/index.php for 122.169.6.221 X-ASG-Orig-Subj: Benefit with nil prepayment charges on your online Personal Loan Received: from abts-mum-dynamic-221.6.169.122.airtelbroadband.in [122.169.6.221] by dev102.magizz.com with HTTP; Wed, 06 Aug 2014 10:02:09 +0000 Date: Wed, 6 Aug 2014 10:06:39 +0000 From: Bajaj Finserv Reply-To: Bajaj Finserv Message-ID: <4e25bde88089a3f6931fbe60aff710ed@dev102.magizz.com> X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: 10 X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev102.magizz.com List-Help: List-Unsubscribe: List-Subscribe: List-Owner: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="b1_4e25bde88089a3f6931fbe60aff710ed" X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [503 514] / [47 12] X-AntiAbuse: Sender Address Domain - dev102.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev102magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1407319597 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_IMAGE_ONLY_32, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8172 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_IMAGE_ONLY_32 BODY: HTML: images with 2800-3200 bytes of words 0.00 HTML_MESSAGE BODY: HTML included in message --b1_4e25bde88089a3f6931fbe60aff710ed Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable =20 Dear Customer, Bajaj Finserv brings you the fastest online personal loan approval of upto 15 lacs in 5 minutes and host of other benefits and privileges. 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=0Aamj --b1_4e25bde88089a3f6931fbe60aff710ed-- From felipemonteiro.carvalho@gmail.com Wed Aug 6 05:12:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B6F007F93 for ; Wed, 6 Aug 2014 05:12:17 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 96461304053 for ; Wed, 6 Aug 2014 03:12:14 -0700 (PDT) X-ASG-Debug-ID: 1407319932-04cb6c75ae27aa0001-NocioJ Received: from mail-pd0-f172.google.com (mail-pd0-f172.google.com [209.85.192.172]) by cuda.sgi.com with ESMTP id LnIIugEbC8Xkequ7 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 03:12:13 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.192.172 Received: by mail-pd0-f172.google.com with SMTP id ft15so3084264pdb.3 for ; Wed, 06 Aug 2014 03:12:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=nF/Z+LMpOSiaaV5xJug8YkKM2xU7LjL7lwzA7/v9uc4=; b=j3pxrM+jF1PBxPgpvWMKbGOoyDJWNUuSTEqa22fCecD4UBg1Ammhg1URoubDzdfndv gZMu5nvg404anYkUTWMG6aAxIZehe76/1dklEPRtKYRuy5kfYb1DTY9VK/RqoxPUZDKB T6cTlqxvjAFS/pArBCTFaTEHUzRCuzHVZLDTNdW4aA2jB3rGiiVcCIrAmGEeasTa5b2P EhnEgSgZWNE/3y/8yHrDZP3PfOiUnJLf+J84NE0z5Rkv6qKOWgrFrUU3fekXozYq+msR jKbRY3zyfRVOeBwMIyocn1Kv8/btQkTIN0pr7OiZ0zOYww0hS+eJyMAa84peXFQuUO0T iztQ== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.70.90.79 with SMTP id bu15mr10189303pdb.158.1407319932685; Wed, 06 Aug 2014 03:12:12 -0700 (PDT) Received: by 10.66.50.9 with HTTP; Wed, 6 Aug 2014 03:12:12 -0700 (PDT) Date: Wed, 6 Aug 2014 12:12:12 +0200 Message-ID: Subject: xfs_bmbt_rec_64 leading to wrong blocks From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: xfs_bmbt_rec_64 leading to wrong blocks To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pd0-f172.google.com[209.85.192.172] X-Barracuda-Start-Time: 1407319933 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8172 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hello, I am writing a software which reads xfs partitions and it is working well so far, but, at in a particular folder with 10k files, only 7k files appear, the other ones don't. I read an inode which has di_core.di_format = XFS_DINODE_FMT_BTREE No problem here, the btree is trivial, it has only 1 element inside it, which leads to a list of 82 extends. Extends 0..52 aprox. are all great, and work fine. Extent 53 (and other ones after that) point to very wierd memory areas which don't match the pattern that I saw previously =( Here is the hex data of the extents, the selected extent in nr 53: http://magnifier.sourceforge.net/temp/xfs/extent_with_xfs_bmbt_rec_64.png And here is debug information showing which values I extracted from this table: i=0 FLocalExtent.StartOff=0 FLocalExtent.StartBlock=66748 FLocalExtent.BlockCount=1 lStartBlock=65212 i=1 FLocalExtent.StartOff=1 FLocalExtent.StartBlock=66758 FLocalExtent.BlockCount=2 lStartBlock=65222 i=2 FLocalExtent.StartOff=3 FLocalExtent.StartBlock=66772 FLocalExtent.BlockCount=1 lStartBlock=65236 .... i=51 FLocalExtent.StartOff=77 FLocalExtent.StartBlock=67468 FLocalExtent.BlockCount=1 lStartBlock=65932 i=52 FLocalExtent.StartOff=78 FLocalExtent.StartBlock=67479 FLocalExtent.BlockCount=1 lStartBlock=65943 i=53 FLocalExtent.StartOff=8388608 FLocalExtent.StartBlock=66749 FLocalExtent.BlockCount=1 lStartBlock=65213 i=54 FLocalExtent.StartOff=8388609 FLocalExtent.StartBlock=66783 FLocalExtent.BlockCount=2 lStartBlock=65247 ... Note how StartOff is suddenly so big! But I manually checked the bits comparing to xfs_bmbt_rec_64 and the value written is that one. But what sense does it make for StartOff to jump like that? And why are the blocks pointing to a non-XD2D block? Here is the block to which one of the valid extents point to: http://magnifier.sourceforge.net/temp/xfs/correct_block_xd2d.png And here is a block to which one of the extents that I cannot interpretate point to: http://magnifier.sourceforge.net/temp/xfs/wierd_block_xd2d.png and another one: http://magnifier.sourceforge.net/temp/xfs/wierd_xfs_dir2_data_entry.png Any ideas??? I already worked so much on this, but I cannot figure out =( thanks, -- Felipe Monteiro de Carvalho From danhkhoi5@cafeland.vn Wed Aug 6 05:23:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=HTML_MESSAGE,SUBJ_ALL_CAPS, T_REMOTE_IMAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0107B7F99 for ; Wed, 6 Aug 2014 05:23:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 99E808F8037 for ; Wed, 6 Aug 2014 03:23:24 -0700 (PDT) X-ASG-Debug-ID: 1407320602-04bdf06ed228bd0001-NocioJ Received: from ABC (vps33723.trouble-free.net [162.220.160.36]) by cuda.sgi.com with ESMTP id roSdssPhmxmdCemT (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 03:23:22 -0700 (PDT) X-Barracuda-Envelope-From: danhkhoi5@cafeland.vn X-Barracuda-Apparent-Source-IP: 162.220.160.36 Received: (qmail 6036 invoked by uid 0); 6 Aug 2014 07:01:06 -0000 Comment: DomainKeys? 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(VPS 140805-0, 08/05/2014), Outbound message X-Antivirus-Status: Clean X-Barracuda-Connect: vps33723.trouble-free.net[162.220.160.36] X-Barracuda-Start-Time: 1407320602 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.31 X-Barracuda-Spam-Status: No, SCORE=2.31 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC3_MV0164, DKIM_SIGNED, HTML_MESSAGE, TVD_RCVD_SINGLE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8173 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.30 TVD_RCVD_SINGLE TVD_RCVD_SINGLE 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message 2.00 BSF_SC3_MV0164 Custom rule MV0164 This is a multi-part message in MIME format --btoueFL=_ufgNmc0wfXqNTWSq9KcatPBl50 Content-Type: multipart/alternative; boundary="btoueFL=_ufgNmc0wfXqNTWSq9KcatPBl51" --btoueFL=_ufgNmc0wfXqNTWSq9KcatPBl51 Content-Type: text/plain ; charset="UTF-8" Content-Transfer-Encoding: quoted-printable K=C3=ADnh g=E1=BB=9Fi: Qu=C3=BD kh=C3=A1ch h=C3=A0ng. KDC BI=E1=BB=86T L=E1=BA=ACP =C4=90=E1=BA=B2NG C=E1=BA=A4P H=C3=80NG =C4=90= =E1=BA=A6U QU=E1=BA=ACN T=C3=82N PH=C3=9A C=C4=82N H=E1=BB=98 RESORT =C4=90=E1=BA=B2NG C=E1=BA=A4P DOANH NH=C3=82N L= =E1=BA=A6N =C4=90=E1=BA=A6U TI=C3=8AN C=C3=93 M=E1=BA=B6T T=E1=BA=A0I TPHCM= V=E1=BB=9AI GI=C3=81 CH=E1=BB=88 T=E1=BB=AA 999 TR/C=C4=82N Sau th=E1=BB=9Di gian d=C3=A0i nghi=C3=AAn c=E1=BB=A9u th=E1=BB=8B tr=C6=B0= =E1=BB=9Dng ch=C3=BAng t=C3=B4i cho ra =C4=91=E1=BB=9Di 1 d=E1=BB=B1 =C3=A1= n =C4=91=E1=BA=B3ng c=E1=BA=A5p b=E1=BA=ADc nh=E1=BA=A5t Qu=E1=BA=ADn T=C3= =A2n Ph=C3=BA v=E1=BB=ABa c=C4=83n h=E1=BB=99, nh=C3=A0 ph=E1=BB=91 v=C3=A0= bi=E1=BB=87t th=E1=BB=B1. V=E1=BB=9Bi v=E1=BB=8B tr=C3=AD chi=E1=BA=BFn l= =C6=B0=E1=BB=A3c ngay c=C3=B4ng vi=C3=AAn Celadon City 16ha v=C3=A0 trung t= =C3=A2m th=C6=B0=C6=A1ng m=E1=BA=A1i AEON Mall. V=E1=BB=9Bi d=E1=BB=B1 =C3= =A1n qu=C3=BD kh=C3=A1ch h=C3=A0ng s=E1=BA=BD th=E1=BB=83 hi=E1=BB=87n =C4= =91=C6=B0=E1=BB=A3c s=E1=BB=B1 =C4=91=E1=BA=B3ng c=E1=BA=A5p khi s=E1=BB=91= ng trong m=E1=BB=99t d=E1=BB=B1 =C3=A1n Compound bi=E1=BB=87t l=C3=A2p =C4= =91=C6=B0=E1=BB=A3c thi=E1=BA=BFt k=E1=BA=BF theo ki=E1=BA=BFn tr=C3=BAc Re= sort v=E1=BB=9Bi c=C3=A1c ti=E1=BB=87n =C3=ADch Ch=C3=A2u =C3=82u l=E1=BA= =A7n =C4=91=E1=BA=A7u ti=C3=AAn c=C3=B3 m=E1=BA=B7t t=E1=BA=A1i tphcm v=C3= =A0 duy nh=E1=BA=A5t t=E1=BA=A1i An Gia garden: Khu v=C6=B0=E1=BB=9Dn Ph=C3= =A1p m=C3=AA cung, Qu=E1=BA=A3ng Tr=C6=B0=E1=BB=9Dng Ch=C3=A2u =C3=82u tr= =C3=A1ng l=E1=BB=87, Th=C3=A1p N=C6=B0=E1=BB=9Bc Hy L=E1=BA=A1p c=E1=BB=95 = =C4=91i=E1=BB=83n, v=C6=B0=E1=BB=9Dn treo ph=C6=B0=E1=BB=9Bc h=E1=BB=A3p v= =C3=A0 th=C3=A1c n=C6=B0=E1=BB=9Bc tr=C3=AAn kh=C3=B4ng =C4=91=E1=BB=99c = =C4=91=C3=A1o, h=E1=BB=93 b=C6=A1i resort, khu BBQ ngo=C3=A0i tr=E1=BB=9Di,= c=C3=A0 ph=C3=AA s=C3=A2n th=C6=B0=E1=BB=A3ng=E2=80=A6 + Di=E1=BB=87n t=C3=ADch: t=E1=BB=AB 49,5 m2( 2 Ph=C3=B2ng ng=E1=BB=A7) =C4= =91=E1=BA=BFn 84 m2( 3 Ph=C3=B2ng ng=E1=BB=A7) + M=E1=BA=B7t ti=E1=BB=81n =C4=91=C6=B0=E1=BB=9Dng T=C3=A2n K=E1=BB=B3 T=C3= =A2n Qu=C3=BD m=E1=BB=9F r=E1=BB=99ng l=C3=AAn =C4=91=E1=BA=BFn 41m. + C=C3=A1ch Trung T=C3=A2m Th=C6=B0=C6=A1ng M=E1=BA=A1i AEON MALL 300m. + C=C3=A1ch Ga t=C3=A0u =C4=91i=E1=BB=87n ng=E1=BA=A7m Metro 600m. + C=C3=A1ch cao =E1=BB=91c v=C4=83n ph=C3=B2ng l=E1=BB=9Bn nh=E1=BA=A5t tp = 800m. + C=C3=A1ch S=C3=A2n Bay T=C3=A2n S=C3=A2n Nh=E1=BA=A5t 10 ph=C3=BAt. + N=E1=BB=99i th=E1=BA=A5t cao c=E1=BA=A5p nh=E1=BA=ADp kh=E1=BA=A9u t=E1= =BB=AB n=C6=B0=E1=BB=9Bc ngo=C3=A0i c=E1=BB=A7a =C4=90=E1=BB=A9c v=C3=A0 Nh= =E1=BA=ADt B=E1=BA=A3n =C4=91=C6=B0=E1=BB=A3c s=E1=BB=AD d=E1=BB=A5ng cho c= =C3=A1c c=C4=83n h=E1=BB=99 nh=C6=B0: c=C3=A1c c=C4=83n h=E1=BB=99 Sunrise = City, Lexington, Tropic Garden... + H=E1=BB=87 th=E1=BB=91ng kh=C3=B3a t=E1=BB=AB an ninh v=C3=A0 video call = =C4=91=E1=BA=A3m b=E1=BA=A3o an ninh v=C3=A0 y=C3=AAn t=C4=A9nh b=E1=BA=ADc= nh=E1=BA=A5t. + H=E1=BB=97 tr=E1=BB=A3 thanh to=C3=A1n d=C3=A0i h=E1=BA=A1n v=C3=A0 vay N= g=C3=A2n h=C3=A0ng. H=C3=A3y =C4=91=E1=BA=BFn v=E1=BB=9Bi An Gia garden =E2=80=93 KDC bi=E1=BB= =87t l=E1=BA=ADp =C4=91=E1=BA=B3ng c=E1=BA=A5p doanh nh=C3=A2n =C4=91=E1=BB= =83 tr=E1=BA=A3i nghi=E1=BB=87m cu=E1=BB=99c s=E1=BB=91ng Ch=C3=A2u =C3=82u= gi=E1=BB=AFa l=C3=B2ng S=C3=A0i G=C3=B2n AN GIA GARDEN =E2=80=93 N=C6=A0I MU=E1=BB=90N =C4=90=E1=BA=BEN, CH=E1=BB=90= N MU=E1=BB=90N V=E1=BB=80 Qu=C3=BD kh=C3=A1ch quan t=C3=A2m vui l=C3=B2ng li=C3=AAn h=E1=BB=87 nh=C3= =A2n vi=C3=AAn =C4=91=E1=BB=83 =C4=91=C6=B0=E1=BB=A3c t=C6=B0 v=E1=BA=A5n c= hi ti=E1=BA=BFt. Nguy=E1=BB=85n =C4=90=C4=83ng Khoa Chuy=C3=AAn Vi=C3=AAn T=C6=B0 V=E1=BA=A5n Mobile: 0938 579 007 =E2=80=93 09 7887 2228 S=C3=A0n Giao D=E1=BB=8Bch B=E1=BA=A5t =C4=90=E1=BB=99ng S=E1=BA=A3n Danh K= h=C3=B4i 3 Tr=E1=BA=A7n Nh=E1=BA=ADt Du=E1=BA=ADt, p.T=C3=A2n =C4=90=E1=BB=8Bnh, Q1 = --- This email is free from viruses and malware because avast! Antivirus protec= tion is active. http://www.avast.com --btoueFL=_ufgNmc0wfXqNTWSq9KcatPBl51 Content-Type: text/html ; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Kính gởi: Quý khách hàn= g. 

KDC BIỆT = LẬP ĐẲNG CẤP HÀNG ĐẦU QUẬN T= ÂN PHÚ 

 CĂN HỘ RESORT Đ&= #7858;NG CẤP DOANH NHÂN LẦN ĐẦU TIÊN C&O= acute; MẶT TẠI TPHCM 

VỚI GIÁ CHỈ TỪ 999 TR/CĂ= N 

 

 

 

Sau thời gia= n dài nghiên cứu thị trường chún= g tôi cho ra đời 1 dự án đẳng c= 845;p bậc nhất Quận Tân Phú vừa că= ;n hộ, nhà phố và biệt thự. Với= vị trí chiến lược ngay công viên=  Celadon City 16ha và&nb= sp;trung tâm thương mại AEON Mall. V= 899;i dự án quý khách hàng sẽ th= 875; hiện được sự đẳng cấp khi= sống trong một dự án Compound biệt lâ= p được thiết kế theo kiến trúc Res= ort với các tiện ích Châu Âu lầ= n đầu tiên có mặt tại tphcm và d= uy nhất tại An Gia garden:&nbs= p;Khu vườn Pháp mê cu= ng, Quảng Trư̖= 1;ng Châu Âu tráng lệ, Tháp N&#= 432;ớc Hy Lạp cổ điển, vườn treo phước hợp v&ag= rave; thác nước trên không độc = 73;áo, hồ bơi resort, khu BBQ ngoài tr= ời, cà phê sân thượng… =

 

 

 

+ Di&= #7879;n tích: từ 49,5 m2( 2 Ph&ograv= e;ng ngủ) đến 84 m2<= font face=3D"Calibri">( 3 Phòng ngủ)
+ Mặt tiề= ;n đường Tân Kỳ Tân Quý mở r= ộng lên đến 41m.
+ Cách Trung Tâm = Thương Mại AEON MALL 300m.

+ C&a= acute;ch Ga tàu điện ngầm Metro 600m.=

+ C&a= acute;ch cao ốc văn phòng lớn nhất tp 800m.+ Cách Sân Bay Tân Sân Nhất 10 phú= ;t. 

+ Nội thất cao cấ= p nhập khẩu từ nước ngoài của = 72;ức và Nhật Bản được sử d&= #7909;ng cho các căn hộ như: các căn h&#= 7897; Sunrise City, Lexington, Tropic Garden... 

+ Hệ thống khóa tO= 15; an ninh và video call đảm bảo an ninh và= yên tĩnh bậc nhất.

+ Hỗ trợ thanh toán d= ài hạn và vay Ngân hàng.

=

 

 Hãy đến với An Gia garden – KDC biệ= t lập đẳng cấp doanh nhân để trN= 43;i nghiệm cuộc sống Châu Âu giữa l&og= rave;ng Sài Gòn <= /span>

 <= /p>

AN GIA GARDEN – NƠI = MUỐN ĐẾN, CHỐN MUỐN VỀ 

 Quý khách quan tâm vui lò= ;ng liên hệ nhân viên để đư= 907;c tư vấn chi tiết.   =

 

 

Nguyễn Đ&= #259;ng Khoa = ;

Chuyên Vi&ecir= c;n Tư Vấn 

Mobile: 0938 579 007 – 09 7887 2228 

Sàn Giao Dị= ;ch Bất Động Sản Danh Khôi 

3 Trần Nhật= Duật, p.Tân Định, Q1 

  

 

 



This email is free from viruses and malware because avast! Antivirus protection is active.


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(mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id xUr8Sz75xMSCcQHr (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 04:34:51 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s76BYnPQ002795 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Aug 2014 07:34:49 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s76BYmos010060; Wed, 6 Aug 2014 07:34:49 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 24F8B12577C; Wed, 6 Aug 2014 07:34:48 -0400 (EDT) Date: Wed, 6 Aug 2014 07:34:48 -0400 From: Brian Foster To: Felipe Monteiro de Carvalho Cc: xfs@oss.sgi.com Subject: Re: xfs_bmbt_rec_64 leading to wrong blocks Message-ID: <20140806113447.GA14820@bfoster.bfoster> X-ASG-Orig-Subj: Re: xfs_bmbt_rec_64 leading to wrong blocks References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407324891 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 06, 2014 at 12:12:12PM +0200, Felipe Monteiro de Carvalho wrote: > Hello, > > I am writing a software which reads xfs partitions and it is working > well so far, but, at in a particular folder with 10k files, only 7k > files appear, the other ones don't. > > I read an inode which has di_core.di_format = XFS_DINODE_FMT_BTREE > > No problem here, the btree is trivial, it has only 1 element inside > it, which leads to a list of 82 extends. > > Extends 0..52 aprox. are all great, and work fine. > > Extent 53 (and other ones after that) point to very wierd memory areas > which don't match the pattern that I saw previously =( > > Here is the hex data of the extents, the selected extent in nr 53: > > http://magnifier.sourceforge.net/temp/xfs/extent_with_xfs_bmbt_rec_64.png > > And here is debug information showing which values I extracted from this table: > > i=0 FLocalExtent.StartOff=0 FLocalExtent.StartBlock=66748 > FLocalExtent.BlockCount=1 lStartBlock=65212 > i=1 FLocalExtent.StartOff=1 FLocalExtent.StartBlock=66758 > FLocalExtent.BlockCount=2 lStartBlock=65222 > i=2 FLocalExtent.StartOff=3 FLocalExtent.StartBlock=66772 > FLocalExtent.BlockCount=1 lStartBlock=65236 > .... > > i=51 FLocalExtent.StartOff=77 FLocalExtent.StartBlock=67468 > FLocalExtent.BlockCount=1 lStartBlock=65932 > i=52 FLocalExtent.StartOff=78 FLocalExtent.StartBlock=67479 > FLocalExtent.BlockCount=1 lStartBlock=65943 > i=53 FLocalExtent.StartOff=8388608 FLocalExtent.StartBlock=66749 > FLocalExtent.BlockCount=1 lStartBlock=65213 > i=54 FLocalExtent.StartOff=8388609 FLocalExtent.StartBlock=66783 > FLocalExtent.BlockCount=2 lStartBlock=65247 > ... > > Note how StartOff is suddenly so big! But I manually checked the bits > comparing to xfs_bmbt_rec_64 and the value written is that one. But > what sense does it make for StartOff to jump like that? > Assuming 4k blocks, 8388608 is 32G, which is the offset interval used for some internal sections of directories on XFS. If this is a directory, it could be a node/leaf or freelist block. Looking at xfs_da_format.h, it looks like XFS_DIR2_LEAF_OFFSET points to this offset. This block basically points to a btree of hashed entry names for lookup. See here for basics: http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Directories.html ... and here for a diagram: http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Node_Directories.html > And why are the blocks pointing to a non-XD2D block? > > Here is the block to which one of the valid extents point to: > > http://magnifier.sourceforge.net/temp/xfs/correct_block_xd2d.png > > And here is a block to which one of the extents that I cannot > interpretate point to: > > http://magnifier.sourceforge.net/temp/xfs/wierd_block_xd2d.png > and another one: > http://magnifier.sourceforge.net/temp/xfs/wierd_xfs_dir2_data_entry.png > The 0xFEBE magic seems to confirm the second one as a node block. Brian > Any ideas??? > > I already worked so much on this, but I cannot figure out =( > > thanks, > -- > Felipe Monteiro de Carvalho > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Wed Aug 6 06:42:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BC47D7F9D for ; Wed, 6 Aug 2014 06:42:04 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9A3B08F804B for ; Wed, 6 Aug 2014 04:42:04 -0700 (PDT) X-ASG-Debug-ID: 1407325323-04cbb03b9d2b730001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id rB72DiF4hyE45VnM (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 04:42:03 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s76Bft1F004020 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Aug 2014 07:41:55 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s76BfsS7011501; Wed, 6 Aug 2014 07:41:55 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id DD8F712577C; Wed, 6 Aug 2014 07:41:53 -0400 (EDT) Date: Wed, 6 Aug 2014 07:41:53 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/6] xfs: consolidate superblock logging functions Message-ID: <20140806114153.GB14820@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: consolidate superblock logging functions References: <1406791995-14723-1-git-send-email-david@fromorbit.com> <1406791995-14723-3-git-send-email-david@fromorbit.com> <20140801143929.GC3582@laptop.bfoster> <20140804080930.GY20518@dastard> <20140804124836.GA4049@bfoster.bfoster> <20140804221526.GZ20518@dastard> <20140805000333.GA27760@bfoster.bfoster> <20140805003440.GB20518@dastard> <20140805123050.GA53538@bfoster.bfoster> <20140805195906.GY26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140805195906.GY26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407325323 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 06, 2014 at 05:59:06AM +1000, Dave Chinner wrote: > On Tue, Aug 05, 2014 at 08:30:51AM -0400, Brian Foster wrote: > > On Tue, Aug 05, 2014 at 10:34:40AM +1000, Dave Chinner wrote: > > > On Mon, Aug 04, 2014 at 08:03:33PM -0400, Brian Foster wrote: > > > > On Tue, Aug 05, 2014 at 08:15:26AM +1000, Dave Chinner wrote: > > > > > e.g. did you know that the xfs_fs_writable() check in > > > > > xfs_log_sbcount() is to prevent it from writing anything when > > > > > unmounting a fully frozen filesystem? i.e. xfs_log_sbcount needs to > > > > > succeed while a freeze is in progress, but fail when a freeze is > > > > > fully complete? > > > > > > > > > > > > > Hmm, so freeze_super() sets s_frozen to SB_FREEZE_FS before it calls > > > > into the fs. Given the xfs_fs_writable() logic, how is that going to > > > > differentiate a freezing fs from a frozen fs? It makes sense that this > > > > would avoid blocking on umount of a frozen fs, but it seems like we'd > > > > skip out just the same during the freeze sequence. Maybe I'm missing > > > > something... > > > > > > Hmmm - that means we broke it at some point. xfs_attr_quiesce is > > > supposed to make the metadata uptodate on disk, so if it's not > > > updating the superblock (i.e. syncing all the counters) then it's > > > not doing the right thing - the sb counters on disk while the fs is > > > frozen are not uptodate and hence correct behaviour if we crash with > > > a frozen fs is dependent on log recovery finding a dirty log. That's > > > a nasty little landmine and needs to be fixed, even though it's not > > > causing issues at the moment (because we dirty the log after > > > quiescing the filesystem). > > > > > > > I'm wondering if that even helps in the case of a crash. It looks like > > we would skip the counter sync and subsequent action of logging the sb > > entirely. > > > > Oh, according to the lazy sb counter commit log description we do some > > kind of counter rebuild across the AGI/AGF structures and log the result > > of that. So I take it that should a crash occur while in the frozen > > state, the simple act of causing a log recovery to occur on subsequent > > mount should rebuild everything correctly. > > Right - it's log recovery that is hiding that little gem. We've been > talking about whether we can change freeze to leave the log clean > and so avoid the need for log recovery in snapshot images. If we > did that, then we'd have exposed this bug.... > > > > Did I mention this code is not at all obvious? :/ > > > > > > > Heh. :P From what I can see, it looks like this has been the case since > > commit 92821e2b, which introduced xfs_log_sbcount(). > > *nod* > > > Perhaps xfs_log_sbcount() requires an open coded s_frozen check a la > > the _xfs_trans_alloc() logic. E.g., skip out of SB_FREEZE_COMPLETE, > > proceed otherwise..? > > Possibly. But it still also needs the RO and shutdown checks. > Perhaps passing xfs_fs_writable() a freeze level and checking > against that? > Right.. I was thinking of open coding the whole thing and modifying the freeze check. Using a param to xfs_fs_writable() sounds generally nicer though and we can prevent any future landmines over 'if (...->s_writers.frozen)' logic. I'll give that a whirl. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From webmaster@dev103.magizz.com Wed Aug 6 06:54:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EBC687F9F for ; Wed, 6 Aug 2014 06:54:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id CAC4D304059 for ; Wed, 6 Aug 2014 04:54:22 -0700 (PDT) X-ASG-Debug-ID: 1407326060-04cb6c75af2b440001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id ijZiQQSSksbDKZz1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 04:54:20 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev103.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev103.magizz.com; s=default; h=Content-Type:MIME-Version:List-Owner:List-Subscribe:List-Unsubscribe:List-Help:Message-ID:Reply-To:From:Date:Subject:To; bh=VJhgMhelojDqY9DsdkeGpbQR5U0JmxMxniGqgfsCsnY=; b=bkr2YdKNfHCrmEJAIgPkxzsZgizsOiIJaFW6YZeDMMckqL/2HyWTpZoaQoR7KmUuLoyX+fImbAHDfGyWoDLeoYUhLIwdLBORpBcEAtUqzH8LnY4qA/EQpEGr3uVUVxAXE5hRdeZO/9D5SzV/K1deFGNyDu9Gn4O4Geqf9RUvSlQ=; Received: from dev103magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XEznS-0006Lb-BD for xfs@oss.sgi.com; Wed, 06 Aug 2014 15:54:22 +0400 To: xfs@oss.sgi.com Subject: You have Won a chance to get Expensive Smartphone X-PHP-Script: dev103.magizz.com/mailz/admin/index.php for 122.169.6.221 X-ASG-Orig-Subj: You have Won a chance to get Expensive Smartphone Received: from abts-mum-dynamic-221.6.169.122.airtelbroadband.in [122.169.6.221] by dev103.magizz.com with HTTP; Wed, 06 Aug 2014 10:12:43 +0000 Date: Wed, 6 Aug 2014 11:54:22 +0000 From: Hit the Jackpot Reply-To: Hit the Jackpot Message-ID: <33fd7cd461b2c54e73f3e049de0e4dde@dev103.magizz.com> X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: 3 X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev103.magizz.com List-Help: List-Unsubscribe: List-Subscribe: List-Owner: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="b1_33fd7cd461b2c54e73f3e049de0e4dde" X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [506 517] / [47 12] X-AntiAbuse: Sender Address Domain - dev103.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev103magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1407326060 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.54 X-Barracuda-Spam-Status: No, SCORE=0.54 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_FONT_LOW_CONTRAST, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8175 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.54 HTML_FONT_LOW_CONTRAST BODY: HTML font color similar to background 0.00 HTML_MESSAGE BODY: HTML included in message --b1_33fd7cd461b2c54e73f3e049de0e4dde Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable =20 Samsung Galaxy Note 3 Android v4.3 OS=20 13 MP Primary Camera=20 2 MP Secondary Camera=20 5.7-inch Touchscreen Claim Now Samsung Galaxy Note 3 Android v4.3 OS=20 13 MP Primary Camera=20 2 MP Secondary Camera=20 5.7-inch Touchscreen Claim Now Samsung Galaxy Note 3 Android v4.3 OS=20 13 MP Primary Camera=20 2 MP Secondary Camera=20 5.7-inch Touchscreen Claim Now Fasten Up, To View Your Gifts. -- This message was sent to xfs@oss.sgi.com by swati@dev103.magizz.com To forward this message, please do not use the forward button of your email application, because this message was made specifically for you only. 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=0Aamj --b1_33fd7cd461b2c54e73f3e049de0e4dde-- From bfoster@redhat.com Wed Aug 6 07:24:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 469417F98 for ; Wed, 6 Aug 2014 07:24:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 16674304043 for ; Wed, 6 Aug 2014 05:24:50 -0700 (PDT) X-ASG-Debug-ID: 1407327889-04bdf06ed22d120001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3qMtOfmWNCXlZU0l (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 05:24:49 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s76COiRU002187 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Aug 2014 08:24:44 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s76COh0f002576; Wed, 6 Aug 2014 08:24:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8818712577C; Wed, 6 Aug 2014 08:24:42 -0400 (EDT) Date: Wed, 6 Aug 2014 08:24:42 -0400 From: Brian Foster To: Hans Wennborg Cc: david@fromorbit.com, xfs@oss.sgi.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 14/15] xfs: fix decimal printf format specifiers prefixed with 0x Message-ID: <20140806122442.GC14820@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 14/15] xfs: fix decimal printf format specifiers prefixed with 0x References: <1407300256-495-1-git-send-email-hans@hanshq.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1407300256-495-1-git-send-email-hans@hanshq.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407327889 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 05, 2014 at 09:44:16PM -0700, Hans Wennborg wrote: > The prefix suggests the number should be printed in hex, so use > the %x specifier to do that. > > Found by using regex suggested by Joe Perches. > > Signed-off-by: Hans Wennborg > --- > fs/xfs/xfs_discard.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c > index 13d08a1..b4a2415 100644 > --- a/fs/xfs/xfs_discard.c > +++ b/fs/xfs/xfs_discard.c > @@ -228,7 +228,7 @@ xfs_discard_extents( > GFP_NOFS, 0); > if (error && error != -EOPNOTSUPP) { > xfs_info(mp, > - "discard failed for extent [0x%llu,%u], error %d", > + "discard failed for extent [0x%llx,%u], error %d", > (unsigned long long)busyp->bno, > busyp->length, > error); It's kind of annoying seeing values of multiple bases being used to describe a single extent, imo. But using 0x before a decimal value certainly isn't nice... ;) Reviewed-by: Brian Foster > -- > 2.0.0.526.g5318336 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From felipemonteiro.carvalho@gmail.com Wed Aug 6 07:31:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 985D97FA1 for ; Wed, 6 Aug 2014 07:31:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 83646304043 for ; Wed, 6 Aug 2014 05:31:13 -0700 (PDT) X-ASG-Debug-ID: 1407328271-04cb6c75af2c850001-NocioJ Received: from mail-pa0-f49.google.com (mail-pa0-f49.google.com [209.85.220.49]) by cuda.sgi.com with ESMTP id tblYi8RDYzwEdAQ9 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 05:31:12 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.49 Received: by mail-pa0-f49.google.com with SMTP id hz1so3324455pad.22 for ; Wed, 06 Aug 2014 05:31:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=onYdBJzTW45PNAdOqHlA5TlimklwrTm23CN3QLDP0yE=; b=n14jSuB40OFtD+38oSs7zgdrA52hKzuOZ9XcreX6jgn6t0jiDU/pG0QGtT2A6haZP2 NrpAZkHb+t40dfiZ8kVaa/G4PE/sVjUDI2GEhoijX8r0Vbu1GIfsBpsxoEmWoHR3s0EH nq/gLD6wGZxJ5Xfn7pbSZu5QYOvExg61MXwJ5AWMzldx28qdXedMvzapKJIHAge6Amz4 EfNWTtH/sk7zPSuQ8yNlk1Su+krbxp+U8PD7ErnbPs6nwC/AI+MD6MK2gvKV/q8u3gu7 XtQHrE+jL3MEqDLN2INE6JyRZsCZrtZFrbDnftH1w1wkYozpW671pnRhMUQZ1wYOqzSV 3rPw== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.70.88.105 with SMTP id bf9mr11239654pdb.54.1407328271492; Wed, 06 Aug 2014 05:31:11 -0700 (PDT) Received: by 10.66.50.9 with HTTP; Wed, 6 Aug 2014 05:31:11 -0700 (PDT) In-Reply-To: <20140806113447.GA14820@bfoster.bfoster> References: <20140806113447.GA14820@bfoster.bfoster> Date: Wed, 6 Aug 2014 14:31:11 +0200 Message-ID: Subject: Re: xfs_bmbt_rec_64 leading to wrong blocks From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Re: xfs_bmbt_rec_64 leading to wrong blocks To: Brian Foster Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pa0-f49.google.com[209.85.220.49] X-Barracuda-Start-Time: 1407328272 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8176 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Thanks! Indeed that's it =) One strange thing however is that in my xfs_dir2_data.h there is: #define XFS_DIR2_DATA_ALIGN_LOG 3 /* i.e., 8 bytes */ #define XFS_DIR2_SPACE_SIZE (1ULL << (32 + XFS_DIR2_DATA_ALIGN_LOG)) #define XFS_DIR2_LEAF_SPACE 1 #define XFS_DIR2_LEAF_OFFSET (XFS_DIR2_LEAF_SPACE * XFS_DIR2_SPACE_SIZE) That doesn't match the number that I am seeing here for the offset. Here I see 1 << 23, but according to the headers it should be 1 << 35 -- Felipe Monteiro de Carvalho On Wed, Aug 6, 2014 at 1:34 PM, Brian Foster wrote: > On Wed, Aug 06, 2014 at 12:12:12PM +0200, Felipe Monteiro de Carvalho wrote: >> Hello, >> >> I am writing a software which reads xfs partitions and it is working >> well so far, but, at in a particular folder with 10k files, only 7k >> files appear, the other ones don't. >> >> I read an inode which has di_core.di_format = XFS_DINODE_FMT_BTREE >> >> No problem here, the btree is trivial, it has only 1 element inside >> it, which leads to a list of 82 extends. >> >> Extends 0..52 aprox. are all great, and work fine. >> >> Extent 53 (and other ones after that) point to very wierd memory areas >> which don't match the pattern that I saw previously =( >> >> Here is the hex data of the extents, the selected extent in nr 53: >> >> http://magnifier.sourceforge.net/temp/xfs/extent_with_xfs_bmbt_rec_64.png >> >> And here is debug information showing which values I extracted from this table: >> >> i=0 FLocalExtent.StartOff=0 FLocalExtent.StartBlock=66748 >> FLocalExtent.BlockCount=1 lStartBlock=65212 >> i=1 FLocalExtent.StartOff=1 FLocalExtent.StartBlock=66758 >> FLocalExtent.BlockCount=2 lStartBlock=65222 >> i=2 FLocalExtent.StartOff=3 FLocalExtent.StartBlock=66772 >> FLocalExtent.BlockCount=1 lStartBlock=65236 >> .... >> >> i=51 FLocalExtent.StartOff=77 FLocalExtent.StartBlock=67468 >> FLocalExtent.BlockCount=1 lStartBlock=65932 >> i=52 FLocalExtent.StartOff=78 FLocalExtent.StartBlock=67479 >> FLocalExtent.BlockCount=1 lStartBlock=65943 >> i=53 FLocalExtent.StartOff=8388608 FLocalExtent.StartBlock=66749 >> FLocalExtent.BlockCount=1 lStartBlock=65213 >> i=54 FLocalExtent.StartOff=8388609 FLocalExtent.StartBlock=66783 >> FLocalExtent.BlockCount=2 lStartBlock=65247 >> ... >> >> Note how StartOff is suddenly so big! But I manually checked the bits >> comparing to xfs_bmbt_rec_64 and the value written is that one. But >> what sense does it make for StartOff to jump like that? >> > > Assuming 4k blocks, 8388608 is 32G, which is the offset interval used > for some internal sections of directories on XFS. If this is a > directory, it could be a node/leaf or freelist block. Looking at > xfs_da_format.h, it looks like XFS_DIR2_LEAF_OFFSET points to this > offset. This block basically points to a btree of hashed entry names for > lookup. See here for basics: > > http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Directories.html > > ... and here for a diagram: > > http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Node_Directories.html > >> And why are the blocks pointing to a non-XD2D block? >> >> Here is the block to which one of the valid extents point to: >> >> http://magnifier.sourceforge.net/temp/xfs/correct_block_xd2d.png >> >> And here is a block to which one of the extents that I cannot >> interpretate point to: >> >> http://magnifier.sourceforge.net/temp/xfs/wierd_block_xd2d.png >> and another one: >> http://magnifier.sourceforge.net/temp/xfs/wierd_xfs_dir2_data_entry.png >> > > The 0xFEBE magic seems to confirm the second one as a node block. > > Brian > >> Any ideas??? >> >> I already worked so much on this, but I cannot figure out =( >> >> thanks, >> -- >> Felipe Monteiro de Carvalho >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs -- Felipe Monteiro de Carvalho From david@fromorbit.com Wed Aug 6 07:32:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B8A187FA3 for ; Wed, 6 Aug 2014 07:32:34 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8A7538F8050 for ; Wed, 6 Aug 2014 05:32:31 -0700 (PDT) X-ASG-Debug-ID: 1407328349-04bdf06ed12d550001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id oublZvUZlmmJL0Hs for ; Wed, 06 Aug 2014 05:32:29 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlQHAFsf4lN5LDJ8/2dsb2JhbABagw1SV4Inq3UBAQEBAQEGngGHSAGBDxd3hAMBAQQBOhwjBQsIAxgJJQ8FJQMhE4g6Bw7DXRiFZIdAghAHhEsFlSuGZpRmg2YrLwE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 06 Aug 2014 22:02:28 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XF0O7-00084j-9U; Wed, 06 Aug 2014 22:32:15 +1000 Date: Wed, 6 Aug 2014 22:32:15 +1000 From: Dave Chinner To: Alex Lyakas Cc: xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140806123215.GJ20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407328349 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8176 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Wed, Aug 06, 2014 at 01:05:34PM +0300, Alex Lyakas wrote: > Hi Dave, > > On Tue, Aug 5, 2014 at 2:07 AM, Dave Chinner wrote: > > On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > >> Greetings, > >> > >> we had a log replay failure due to some errors that the underlying > >> block device returned: > >> [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > >> ("xlog_recover_iodone") error 28 numblks 16 > >> [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > >> [49133.802644] XFS (dm-95): log mount failed > > > > #define ENOSPC 28 /* No space left on device */ > > > > You're getting an ENOSPC as a metadata IO error during log recovery? > > Thin provisioning problem, perhaps, > Yes, it is a thin provisioning problem (which I already know the cause for). > > > and the error is occurring on > > submission rather than completion? If so: > > > > 8d6c121 xfs: fix buffer use after free on IO error > I am not sure what do you mean by "submission rather than completion". > Do you mean that xfs_buf_ioapply_map() returns without submitting any > bios? No, that the bio submission results in immediate failure (e.g. the device goes away, so submission results in ENODEV). Hence when _xfs_buf_ioapply() releases it's IO reference itis the only remaining reference to the buffer and so completion processing is run immediately. i.e. inline from the submission path. Normally IO errors are reported through the bio in IO completion interrupt context. i.e the IO is completed by the hardware and the error status is attached to bio, which is then completed and we get into XFS that way. The IO submision context is long gone at this point.... > In that case, no, bios are submitted to the block device, and it > fails them through a different context with ENOSPC error. I will still > try the patch you mentioned, because it also looks relevant to another > question I addressed to you earlier in: > http://oss.sgi.com/archives/xfs/2013-11/msg00648.html No, that's a different problem. 9c23ecc xfs: unmount does not wait for shutdown during unmount Cheers, Dave. -- Dave Chinner david@fromorbit.com From alex@zadarastorage.com Wed Aug 6 07:52:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8A3237FA1 for ; Wed, 6 Aug 2014 07:52:04 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 770128F8050 for ; Wed, 6 Aug 2014 05:52:04 -0700 (PDT) X-ASG-Debug-ID: 1407329521-04cbb03b9b2e220001-NocioJ Received: from mail-wg0-f50.google.com (mail-wg0-f50.google.com [74.125.82.50]) by cuda.sgi.com with ESMTP id fpxyp5rD3POUi1Yx (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 05:52:02 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 74.125.82.50 Received: by mail-wg0-f50.google.com with SMTP id n12so2617334wgh.9 for ; Wed, 06 Aug 2014 05:52:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=fQ7OmYBqF6eptiwuhyTEhx1EDodC3ujBuEfw9wyBMVw=; b=kvEYSMYgArHyOq+aJ00ET/70oVG6Dc5iQChIlD/gSXQp/IhVsAQpaTeLCz3q/0okcX hW6WIKalu8I27fN/fO7iAcRpQjI4fFnde9WvKuvjvqelqgN28bGv55YZA89vRQQL3iMk hDC4AsDMFBY4UF+NVwvpfLuDaGNwmMO+NS5aRx44mTRjWVffpr2SCBp+A1aAXpXCRiN3 qZHvc/W9l3m+gKsNgkh8C6HxpxGWbgQBeMTIugNhSo9+a1qv7z92Rsku+4kLU6FJUDK4 UfJJF/qm/bHRgshEt7NakE3bfbhVcAssaprzksOGXKltc5wWKmKcWZ+xWYKSn8OaolWp MflQ== X-Gm-Message-State: ALoCoQmWGPW72LRiBlKzC5oru/TxBJcZh4slDcrOOGC/8xieghY22HzKN1O0eY3srWZfYtlwxQUS X-Received: by 10.180.35.134 with SMTP id h6mr16367718wij.0.1407329520919; Wed, 06 Aug 2014 05:52:00 -0700 (PDT) Received: from alyakaslap ([212.143.144.103]) by mx.google.com with ESMTPSA id bt9sm2287274wjc.40.2014.08.06.05.51.59 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 06 Aug 2014 05:52:00 -0700 (PDT) Message-ID: From: "Alex Lyakas" To: "Dave Chinner" Cc: , References: <20140113030230.GF3469@dastard> <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> In-Reply-To: <20140804230721.GA20518@dastard> Subject: Re: use-after-free on log replay failure Date: Wed, 6 Aug 2014 15:52:03 +0300 X-ASG-Orig-Subj: Re: use-after-free on log replay failure MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-wg0-f50.google.com[74.125.82.50] X-Barracuda-Start-Time: 1407329522 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8176 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hello Dave and Brian, Dave, I tried the patch you suggested, but it does not fix the issue. I did some further digging, and it appears that _xfs_buf_ioend(schedule=1) can be called from xfs_buf_iorequest(), which the patch fixes, but also from xfs_buf_bio_end_io() which is my case. I am reproducing the issue pretty easily. The flow that I have is like this: - xlog_recover() calls xlog_find_tail(). This works alright. - Now I add a small sleep before calling xlog_do_recover(), and meanwhile I instruct my block device to return ENOSPC for any WRITE from now on. What seems to happen is that several WRITE bios are submitted and they all fail. When they do, they reach xfs_buf_ioend() through a stack like this: Aug 6 15:23:07 dev kernel: [ 304.410528] [56]xfs*[xfs_buf_ioend:1056] XFS(dm-19): Scheduling xfs_buf_iodone_work on error Aug 6 15:23:07 dev kernel: [ 304.410534] Pid: 56, comm: kworker/u:1 Tainted: G W O 3.8.13-557-generic #1382000791 Aug 6 15:23:07 dev kernel: [ 304.410537] Call Trace: Aug 6 15:23:07 dev kernel: [ 304.410587] [] xfs_buf_ioend+0x1a4/0x1b0 [xfs] Aug 6 15:23:07 dev kernel: [ 304.410621] [] _xfs_buf_ioend+0x25/0x30 [xfs] Aug 6 15:23:07 dev kernel: [ 304.410643] [] xfs_buf_bio_end_io+0x3d/0x50 [xfs] Aug 6 15:23:07 dev kernel: [ 304.410652] [] bio_endio+0x1d/0x40 ... At this point, they are scheduled to run xlog_recover_iodone through xfslogd_workqueue. The first callback that gets called, calls xfs_do_force_shutdown in stack like this: Aug 6 15:23:07 dev kernel: [ 304.411791] XFS (dm-19): metadata I/O error: block 0x3780001 ("xlog_recover_iodone") error 28 numblks 1 Aug 6 15:23:07 dev kernel: [ 304.413493] XFS (dm-19): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0526848 Aug 6 15:23:07 dev kernel: [ 304.413837] [] xfs_do_force_shutdown+0x40/0x180 [xfs] Aug 6 15:23:07 dev kernel: [ 304.413870] [] ? xlog_recover_iodone+0x48/0x70 [xfs] Aug 6 15:23:07 dev kernel: [ 304.413902] [] xlog_recover_iodone+0x48/0x70 [xfs] Aug 6 15:23:07 dev kernel: [ 304.413923] [] xfs_buf_iodone_work+0x4d/0xa0 [xfs] Aug 6 15:23:07 dev kernel: [ 304.413930] [] process_one_work+0x141/0x4a0 Aug 6 15:23:07 dev kernel: [ 304.413937] [] worker_thread+0x168/0x410 Aug 6 15:23:07 dev kernel: [ 304.413943] [] ? manage_workers+0x120/0x120 Aug 6 15:23:07 dev kernel: [ 304.413949] [] kthread+0xc0/0xd0 Aug 6 15:23:07 dev kernel: [ 304.413954] [] ? flush_kthread_worker+0xb0/0xb0 Aug 6 15:23:07 dev kernel: [ 304.413976] [] ret_from_fork+0x7c/0xb0 Aug 6 15:23:07 dev kernel: [ 304.413986] [] ? flush_kthread_worker+0xb0/0xb0 Aug 6 15:23:07 dev kernel: [ 304.413990] ---[ end trace 988d698520e1fa81 ]--- Aug 6 15:23:07 dev kernel: [ 304.414012] XFS (dm-19): I/O Error Detected. Shutting down filesystem Aug 6 15:23:07 dev kernel: [ 304.415936] XFS (dm-19): Please umount the filesystem and rectify the problem(s) But the rest of the callbacks also arrive: Aug 6 15:23:07 dev kernel: [ 304.417812] XFS (dm-19): metadata I/O error: block 0x3780002 ("xlog_recover_iodone") error 28 numblks 1 Aug 6 15:23:07 dev kernel: [ 304.420420] XFS (dm-19): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0526848 Aug 6 15:23:07 dev kernel: [ 304.420427] XFS (dm-19): metadata I/O error: block 0x3780008 ("xlog_recover_iodone") error 28 numblks 8 Aug 6 15:23:07 dev kernel: [ 304.422708] XFS (dm-19): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0526848 Aug 6 15:23:07 dev kernel: [ 304.422738] XFS (dm-19): metadata I/O error: block 0x3780010 ("xlog_recover_iodone") error 28 numblks 8 The mount sequence fails and goes back to the caller: Aug 6 15:23:07 dev kernel: [ 304.423438] XFS (dm-19): log mount/recovery failed: error 28 Aug 6 15:23:07 dev kernel: [ 304.423757] XFS (dm-19): log mount failed But there are still additional callbacks to deliver, which the mount sequence did not wait for! Aug 6 15:23:07 dev kernel: [ 304.425717] XFS (@dR): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0526848 Aug 6 15:23:07 dev kernel: [ 304.425723] XFS (@dR): metadata I/O error: block 0x3780018 ("xlog_recover_iodone") error 28 numblks 8 Aug 6 15:23:07 dev kernel: [ 304.428239] XFS (@dR): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0526848 Aug 6 15:23:07 dev kernel: [ 304.428246] XFS (@dR): metadata I/O error: block 0x37800a0 ("xlog_recover_iodone") error 28 numblks 16 Notice the junk that they are printing! Naturally, because xfs_mount structure has been kfreed. Finally the kernel crashes (instead of printing junk), because the xfs_mount structure is gone, but the callback tries to access it (printing the name): Aug 6 15:23:07 dev kernel: [ 304.430796] general protection fault: 0000 [#1] SMP Aug 6 15:23:07 dev kernel: [ 304.432035] Modules linked in: xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 iscsi_scst_tcp(O) scst_vdisk(O) scst(O) dm_zcache(O) dm_btrfs(O) xfs(O) btrfs(O) libcrc32c raid456(O) async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1(O) md_mod deflate zlib_deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin kvm vfat fat ppdev psmouse microcode nfsd nfs_acl dm_multipath(O) serio_raw parport_pc nfsv4 dm_iostat(O) mac_hid i2c_piix4 auth_rpcgss nfs fscache lockd sunrpc lp parport floppy Aug 6 15:23:07 dev kernel: [ 304.432035] CPU 1 Aug 6 15:23:07 dev kernel: [ 304.432035] Pid: 133, comm: kworker/1:1H Tainted: G W O 3.8.13-557-generic #1382000791 Bochs Bochs Aug 6 15:23:07 dev kernel: [ 304.432035] RIP: 0010:[] [] strnlen+0xb/0x30 Aug 6 15:23:07 dev kernel: [ 304.432035] RSP: 0018:ffff880035461b08 EFLAGS: 00010086 Aug 6 15:23:07 dev kernel: [ 304.432035] RAX: 0000000000000000 RBX: ffffffff81e6a4e7 RCX: 0000000000000000 Aug 6 15:23:07 dev kernel: [ 304.432035] RDX: e4e8390a265c0000 RSI: ffffffffffffffff RDI: e4e8390a265c0000 Aug 6 15:23:07 dev kernel: [ 304.432035] RBP: ffff880035461b08 R08: 000000000000ffff R09: 000000000000ffff Aug 6 15:23:07 dev kernel: [ 304.432035] R10: 0000000000000000 R11: 00000000000004cd R12: e4e8390a265c0000 Aug 6 15:23:07 dev kernel: [ 304.432035] R13: ffffffff81e6a8c0 R14: 0000000000000000 R15: 000000000000ffff Aug 6 15:23:07 dev kernel: [ 304.432035] FS: 0000000000000000(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000 Aug 6 15:23:07 dev kernel: [ 304.432035] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Aug 6 15:23:07 dev kernel: [ 304.432035] CR2: 00007fc902ffbfd8 CR3: 000000007702a000 CR4: 00000000000006e0 Aug 6 15:23:07 dev kernel: [ 304.432035] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Aug 6 15:23:07 dev kernel: [ 304.432035] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Aug 6 15:23:07 dev kernel: [ 304.432035] Process kworker/1:1H (pid: 133, threadinfo ffff880035460000, task ffff880035412e00) Aug 6 15:23:07 dev kernel: [ 304.432035] Stack: Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461b48 ffffffff8133dd5e 0000000000000000 ffffffff81e6a4e7 Aug 6 15:23:07 dev kernel: [ 304.432035] ffffffffa0566cba ffff880035461c80 ffffffffa0566cba ffffffff81e6a8c0 Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461bc8 ffffffff8133ef59 ffff880035461bc8 ffffffff81c84040 Aug 6 15:23:07 dev kernel: [ 304.432035] Call Trace: Aug 6 15:23:07 dev kernel: [ 304.432035] [] string.isra.4+0x3e/0xd0 Aug 6 15:23:07 dev kernel: [ 304.432035] [] vsnprintf+0x219/0x640 Aug 6 15:23:07 dev kernel: [ 304.432035] [] vscnprintf+0x11/0x30 Aug 6 15:23:07 dev kernel: [ 304.432035] [] vprintk_emit+0xc1/0x490 Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? vprintk_emit+0x170/0x490 Aug 6 15:23:07 dev kernel: [ 304.432035] [] printk+0x61/0x63 Aug 6 15:23:07 dev kernel: [ 304.432035] [] __xfs_printk+0x31/0x50 [xfs] Aug 6 15:23:07 dev kernel: [ 304.432035] [] xfs_notice+0x53/0x60 [xfs] Aug 6 15:23:07 dev kernel: [ 304.432035] [] xfs_do_force_shutdown+0xf5/0x180 [xfs] Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? xlog_recover_iodone+0x48/0x70 [xfs] Aug 6 15:23:07 dev kernel: [ 304.432035] [] xlog_recover_iodone+0x48/0x70 [xfs] Aug 6 15:23:07 dev kernel: [ 304.432035] [] xfs_buf_iodone_work+0x4d/0xa0 [xfs] Aug 6 15:23:07 dev kernel: [ 304.432035] [] process_one_work+0x141/0x4a0 Aug 6 15:23:07 dev kernel: [ 304.432035] [] worker_thread+0x168/0x410 Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? manage_workers+0x120/0x120 Aug 6 15:23:07 dev kernel: [ 304.432035] [] kthread+0xc0/0xd0 Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? flush_kthread_worker+0xb0/0xb0 Aug 6 15:23:07 dev kernel: [ 304.432035] [] ret_from_fork+0x7c/0xb0 Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? flush_kthread_worker+0xb0/0xb0 Aug 6 15:23:07 dev kernel: [ 304.432035] Code: 31 c0 80 3f 00 55 48 89 e5 74 11 48 89 f8 66 90 48 83 c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 c0 48 85 f6 48 89 e5 74 23 <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83 ee 01 80 38 00 74 Aug 6 15:23:07 dev kernel: [ 304.432035] RIP [] strnlen+0xb/0x30 Aug 6 15:23:07 dev kernel: [ 304.432035] RSP So previously you said: "So, something is corrupting memory and stamping all over the XFS structures." and also "given you have a bunch of out of tree modules loaded (and some which are experiemental) suggests that you have a problem with your storage...". But I believe, my analysis shows that during the mount sequence XFS does not wait properly for all the bios to complete, before failing the mount sequence back to the caller. Thanks, Alex. -----Original Message----- From: Dave Chinner Sent: 05 August, 2014 2:07 AM To: Alex Lyakas Cc: xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > Greetings, > > we had a log replay failure due to some errors that the underlying > block device returned: > [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > ("xlog_recover_iodone") error 28 numblks 16 > [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > [49133.802644] XFS (dm-95): log mount failed #define ENOSPC 28 /* No space left on device */ You're getting an ENOSPC as a metadata IO error during log recovery? Thin provisioning problem, perhaps, and the error is occurring on submission rather than completion? If so: 8d6c121 xfs: fix buffer use after free on IO error Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Wed Aug 6 08:54:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B847A7FA6 for ; Wed, 6 Aug 2014 08:54:34 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A6A148F804B for ; Wed, 6 Aug 2014 06:54:31 -0700 (PDT) X-ASG-Debug-ID: 1407333270-04cb6c75ad2ffc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id D1FdIqOD1lJlHBhb (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 06:54:30 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s76DsUhF032522 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 6 Aug 2014 09:54:30 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s76DsTFF005755 for ; Wed, 6 Aug 2014 09:54:29 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 9E15912577C; Wed, 6 Aug 2014 09:54:28 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: allow lazy sb counter sync during filesystem freeze sequence Date: Wed, 6 Aug 2014 09:54:28 -0400 X-ASG-Orig-Subj: [PATCH] xfs: allow lazy sb counter sync during filesystem freeze sequence Message-Id: <1407333268-38768-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407333270 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The expectation since the introduction the lazy superblock counters is that the counters are synced and superblock logged appropriately as part of the filesystem freeze sequence. This does not occur, however, due to the logic in xfs_fs_writable() that prevents progress when the fs is in any state other than SB_UNFROZEN. While this is a bug, it has not been exposed to date because the last thing XFS does during freeze is dirty the log. The log recovery process recalculates the counters from AGI/AGF metadata to ensure everything is correct. Therefore should a crash occur while an fs is frozen, the subsequent log recovery puts everything back in order. See the following commit for reference: 92821e2b [XFS] Lazy Superblock Counters We might not always want to rely on dirtying the log on a frozen fs. Modify xfs_log_sbcount() to proceed when the filesystem is freezing but not once the freeze process has completed. Modify xfs_fs_writable() to accept the maximum allowable freeze level as a parameter to support the requirements of various codepaths. Signed-off-by: Brian Foster --- I also toyed with using a 'bypass_freezing' bool parameter and leaving the freeze level bits isolated to xfs_fs_writable(), but this actually looked a bit more clean. I'm fine with either way... thoughts? Brian fs/xfs/xfs_log.c | 2 +- fs/xfs/xfs_mount.c | 27 +++++++++++++++++++-------- fs/xfs/xfs_mount.h | 2 +- 3 files changed, 21 insertions(+), 10 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index ca4fd5b..7ada70c 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1031,7 +1031,7 @@ xfs_log_need_covered(xfs_mount_t *mp) struct xlog *log = mp->m_log; int needed = 0; - if (!xfs_fs_writable(mp)) + if (!xfs_fs_writable(mp, SB_UNFROZEN)) return 0; if (!xlog_cil_empty(log)) diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index fbf0384..177b6ea 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -1080,11 +1080,21 @@ xfs_unmountfs( xfs_sysfs_del(&mp->m_kobj); } -int -xfs_fs_writable(xfs_mount_t *mp) +/* + * Determine whether modifications can proceed. The caller specifies the maximum + * freeze level that should be allowed to proceed. This allows certain required + * operations to proceed while the freeze sequence is in progress. + */ +bool +xfs_fs_writable( + struct xfs_mount *mp, + int maxfreeze) { - return !(mp->m_super->s_writers.frozen || XFS_FORCED_SHUTDOWN(mp) || - (mp->m_flags & XFS_MOUNT_RDONLY)); + if ((mp->m_super->s_writers.frozen > maxfreeze) || + XFS_FORCED_SHUTDOWN(mp) || (mp->m_flags & XFS_MOUNT_RDONLY)) + return false; + + return true; } /* @@ -1092,9 +1102,9 @@ xfs_fs_writable(xfs_mount_t *mp) * * Sync the superblock counters to disk. * - * Note this code can be called during the process of freezing, so - * we may need to use the transaction allocator which does not - * block when the transaction subsystem is in its frozen state. + * Note this code can be called during the process of freezing, so we use the + * transaction allocator that does not block when the transaction subsystem is + * in its frozen state. */ int xfs_log_sbcount(xfs_mount_t *mp) @@ -1102,7 +1112,8 @@ xfs_log_sbcount(xfs_mount_t *mp) xfs_trans_t *tp; int error; - if (!xfs_fs_writable(mp)) + /* allow this to proceed during the freeze sequence... */ + if (!xfs_fs_writable(mp, SB_FREEZE_COMPLETE)) return 0; xfs_icsb_sync_counters(mp, 0); diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index b0447c8..fd15e5c 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -384,7 +384,7 @@ extern int xfs_mount_log_sb(xfs_mount_t *, __int64_t); extern struct xfs_buf *xfs_getsb(xfs_mount_t *, int); extern int xfs_readsb(xfs_mount_t *, int); extern void xfs_freesb(xfs_mount_t *); -extern int xfs_fs_writable(xfs_mount_t *); +extern bool xfs_fs_writable(struct xfs_mount *mp, int maxfreeze); extern int xfs_sb_validate_fsb_count(struct xfs_sb *, __uint64_t); extern int xfs_dev_is_read_only(struct xfs_mount *, char *); -- 1.8.3.1 From himangi774@gmail.com Wed Aug 6 09:13:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1E25B7FA3 for ; 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Wed, 06 Aug 2014 07:13:46 -0700 (PDT) Received: from localhost ([14.139.82.6]) by mx.google.com with ESMTPSA id dd5sm1410849pbc.85.2014.08.06.07.13.44 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 06 Aug 2014 07:13:45 -0700 (PDT) Date: Wed, 6 Aug 2014 19:43:43 +0530 X-Barracuda-Apparent-Source-IP: 14.139.82.6 From: Himangi Saraogi To: Dave Chinner , xfs@oss.sgi.com, linux-kernel@vger.kernel.org Cc: Julia Lawall Subject: [PATCH] xfs: Remove typedef xfs_uu_t Message-ID: <20140806141343.GA15659@himangi-Dell> X-ASG-Orig-Subj: [PATCH] xfs: Remove typedef xfs_uu_t MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mail-pa0-f43.google.com[209.85.220.43] X-Barracuda-Start-Time: 1407334427 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, MAILTO_TO_SPAM_ADDR X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8178 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 MAILTO_TO_SPAM_ADDR URI: Includes a link to a likely spammer email The Linux kernel coding style guidelines suggest not using typedefs for structure types. This patch gets rid of the typedef for xfs_uu_t. Also the names of the struct is changed to drop the _t, to make the name look less typedef-like. The following Coccinelle semantic patch detects the case. @tn1@ type td; @@ typedef struct { ... } td; @script:python tf@ td << tn1.td; tdres; @@ coccinelle.tdres = td; @@ type tn1.td; identifier tf.tdres; @@ -typedef struct + tdres { ... } -td ; @@ type tn1.td; identifier tf.tdres; @@ ( -td + struct tdres | const - td + struct tdres ) Signed-off-by: Himangi Saraogi Acked-by: Julia Lawall --- fs/xfs/uuid.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/xfs/uuid.c b/fs/xfs/uuid.c index b83f76b..1f21d8f 100644 --- a/fs/xfs/uuid.c +++ b/fs/xfs/uuid.c @@ -18,13 +18,13 @@ #include /* IRIX interpretation of an uuid_t */ -typedef struct { +struct xfs_uu { __be32 uu_timelow; __be16 uu_timemid; __be16 uu_timehi; __be16 uu_clockseq; __be16 uu_node[3]; -} xfs_uu_t; +}; /* * uuid_getnodeuniq - obtain the node unique fields of a UUID. @@ -35,7 +35,7 @@ typedef struct { void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]) { - xfs_uu_t *uup = (xfs_uu_t *)uuid; + struct xfs_uu *uup = (struct xfs_uu *)uuid; fsid[0] = (be16_to_cpu(uup->uu_clockseq) << 16) | be16_to_cpu(uup->uu_timemid); -- 1.9.1 From bfoster@redhat.com Wed Aug 6 09:23:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 176147F6B for ; Wed, 6 Aug 2014 09:23:38 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id A8CDFAC005 for ; Wed, 6 Aug 2014 07:23:34 -0700 (PDT) X-ASG-Debug-ID: 1407335013-04bdf06ed132780001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ROJALW84NlNxj7yV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 07:23:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s76ENVW6027231 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Aug 2014 10:23:31 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s76ENVDF024878; Wed, 6 Aug 2014 10:23:31 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1785B12577C; Wed, 6 Aug 2014 10:23:30 -0400 (EDT) Date: Wed, 6 Aug 2014 10:23:30 -0400 From: Brian Foster To: Felipe Monteiro de Carvalho Cc: xfs@oss.sgi.com Subject: Re: xfs_bmbt_rec_64 leading to wrong blocks Message-ID: <20140806142329.GA39990@bfoster.bfoster> X-ASG-Orig-Subj: Re: xfs_bmbt_rec_64 leading to wrong blocks References: <20140806113447.GA14820@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407335013 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 06, 2014 at 02:31:11PM +0200, Felipe Monteiro de Carvalho wrote: > Thanks! Indeed that's it =) > > One strange thing however is that in my xfs_dir2_data.h there is: > > #define XFS_DIR2_DATA_ALIGN_LOG 3 /* i.e., 8 bytes */ > #define XFS_DIR2_SPACE_SIZE (1ULL << (32 + XFS_DIR2_DATA_ALIGN_LOG)) > #define XFS_DIR2_LEAF_SPACE 1 > #define XFS_DIR2_LEAF_OFFSET (XFS_DIR2_LEAF_SPACE * XFS_DIR2_SPACE_SIZE) > > That doesn't match the number that I am seeing here for the offset. > Here I see 1 << 23, but according to the headers it should be 1 << 35 > We're talking about extent map data here right? If so, the offset on disk is in filesystem block units. E.g., block 8388608 * 4096 == 32G == (1 << 35). Brian > -- > Felipe Monteiro de Carvalho > > > On Wed, Aug 6, 2014 at 1:34 PM, Brian Foster wrote: > > On Wed, Aug 06, 2014 at 12:12:12PM +0200, Felipe Monteiro de Carvalho wrote: > >> Hello, > >> > >> I am writing a software which reads xfs partitions and it is working > >> well so far, but, at in a particular folder with 10k files, only 7k > >> files appear, the other ones don't. > >> > >> I read an inode which has di_core.di_format = XFS_DINODE_FMT_BTREE > >> > >> No problem here, the btree is trivial, it has only 1 element inside > >> it, which leads to a list of 82 extends. > >> > >> Extends 0..52 aprox. are all great, and work fine. > >> > >> Extent 53 (and other ones after that) point to very wierd memory areas > >> which don't match the pattern that I saw previously =( > >> > >> Here is the hex data of the extents, the selected extent in nr 53: > >> > >> http://magnifier.sourceforge.net/temp/xfs/extent_with_xfs_bmbt_rec_64.png > >> > >> And here is debug information showing which values I extracted from this table: > >> > >> i=0 FLocalExtent.StartOff=0 FLocalExtent.StartBlock=66748 > >> FLocalExtent.BlockCount=1 lStartBlock=65212 > >> i=1 FLocalExtent.StartOff=1 FLocalExtent.StartBlock=66758 > >> FLocalExtent.BlockCount=2 lStartBlock=65222 > >> i=2 FLocalExtent.StartOff=3 FLocalExtent.StartBlock=66772 > >> FLocalExtent.BlockCount=1 lStartBlock=65236 > >> .... > >> > >> i=51 FLocalExtent.StartOff=77 FLocalExtent.StartBlock=67468 > >> FLocalExtent.BlockCount=1 lStartBlock=65932 > >> i=52 FLocalExtent.StartOff=78 FLocalExtent.StartBlock=67479 > >> FLocalExtent.BlockCount=1 lStartBlock=65943 > >> i=53 FLocalExtent.StartOff=8388608 FLocalExtent.StartBlock=66749 > >> FLocalExtent.BlockCount=1 lStartBlock=65213 > >> i=54 FLocalExtent.StartOff=8388609 FLocalExtent.StartBlock=66783 > >> FLocalExtent.BlockCount=2 lStartBlock=65247 > >> ... > >> > >> Note how StartOff is suddenly so big! But I manually checked the bits > >> comparing to xfs_bmbt_rec_64 and the value written is that one. But > >> what sense does it make for StartOff to jump like that? > >> > > > > Assuming 4k blocks, 8388608 is 32G, which is the offset interval used > > for some internal sections of directories on XFS. If this is a > > directory, it could be a node/leaf or freelist block. Looking at > > xfs_da_format.h, it looks like XFS_DIR2_LEAF_OFFSET points to this > > offset. This block basically points to a btree of hashed entry names for > > lookup. See here for basics: > > > > http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Directories.html > > > > ... and here for a diagram: > > > > http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Node_Directories.html > > > >> And why are the blocks pointing to a non-XD2D block? > >> > >> Here is the block to which one of the valid extents point to: > >> > >> http://magnifier.sourceforge.net/temp/xfs/correct_block_xd2d.png > >> > >> And here is a block to which one of the extents that I cannot > >> interpretate point to: > >> > >> http://magnifier.sourceforge.net/temp/xfs/wierd_block_xd2d.png > >> and another one: > >> http://magnifier.sourceforge.net/temp/xfs/wierd_xfs_dir2_data_entry.png > >> > > > > The 0xFEBE magic seems to confirm the second one as a node block. > > > > Brian > > > >> Any ideas??? > >> > >> I already worked so much on this, but I cannot figure out =( > >> > >> thanks, > >> -- > >> Felipe Monteiro de Carvalho > >> > >> _______________________________________________ > >> xfs mailing list > >> xfs@oss.sgi.com > >> http://oss.sgi.com/mailman/listinfo/xfs > > > > -- > Felipe Monteiro de Carvalho > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From BATV+e7dd069109cb1df529b2+4000+infradead.org+hch@bombadil.srs.infradead.org Wed Aug 6 09:28:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BD1FA7F6B for ; Wed, 6 Aug 2014 09:28:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9BA9630404E for ; Wed, 6 Aug 2014 07:28:51 -0700 (PDT) X-ASG-Debug-ID: 1407335329-04bdf06ecf32b40001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id qp4WdVbbg7cjtpNV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 07:28:49 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e7dd069109cb1df529b2+4000+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XF2Ct-0004hI-6g; Wed, 06 Aug 2014 14:28:47 +0000 Date: Wed, 6 Aug 2014 07:28:47 -0700 From: Christoph Hellwig To: Himangi Saraogi Cc: Dave Chinner , xfs@oss.sgi.com, linux-kernel@vger.kernel.org, Julia Lawall Subject: Re: [PATCH] xfs: Remove typedef xfs_uu_t Message-ID: <20140806142847.GA9757@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfs: Remove typedef xfs_uu_t References: <20140806141343.GA15659@himangi-Dell> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140806141343.GA15659@himangi-Dell> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1407335329 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8178 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 06, 2014 at 07:43:43PM +0530, Himangi Saraogi wrote: > The Linux kernel coding style guidelines suggest not using typedefs > for structure types. This patch gets rid of the typedef for xfs_uu_t. > Also the names of the struct is changed to drop the _t, to make the > name look less typedef-like. The right fix is to just kill the type, and read the values directly from the uuid_t type using get_unaligned_be16. From alex@zadarastorage.com Wed Aug 6 09:43:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 3C0497FAB for ; Wed, 6 Aug 2014 09:43:04 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id DA5FAAC00F for ; Wed, 6 Aug 2014 07:43:03 -0700 (PDT) X-ASG-Debug-ID: 1407336179-04bdf06ecf336e0001-NocioJ Received: from mail-we0-f169.google.com (mail-we0-f169.google.com [74.125.82.169]) by cuda.sgi.com with ESMTP id 3WFxYVLQ4YefHCCW (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 07:43:00 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 74.125.82.169 Received: by mail-we0-f169.google.com with SMTP id u56so2755883wes.14 for ; Wed, 06 Aug 2014 07:42:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=3uaACW8SoPuNh4ajAWgaruf0z61vNk0M6wjtLk25Oow=; b=CmfJ4ythBlMEirBkW+2oDo3jZXkZIM82YblqkHgX0KXR9kXdRCkIF0p8kZrzOHZq5B 6c/yvU6UStOFnD+5qIlDkscFZ58NRcYkA5FLIJwZB1rA76eXl4+IcdeU51Zgx5Tdeusx uq4UFUxg2/jG2vyy24tAZst4NCKYKO3kWSW09GSQq5ZWULpedZgraju++g0vMm3PJabO aH55w+I45f5rc9Vyb40g0fkMLihcJwae5co/hampUWdst3EcCFaK18Y+BqzpnU12gsl9 IVfgEIBBVNDQTr5Z7QpY9yjHBZSR9f0ra592FtKOXyrZ36L7+zSkxHojyyhvAmGTuAW+ cVSg== X-Gm-Message-State: ALoCoQkaTso1HP91q+bAqqbJV6Ys/QF/oFJ4vP/lxtI4yNKxy3CqTsJGaEObbkxO1VdSPgg7CdSz X-Received: by 10.194.221.6 with SMTP id qa6mr16252628wjc.39.1407336179378; Wed, 06 Aug 2014 07:42:59 -0700 (PDT) Received: from alyakaslap ([212.143.144.103]) by mx.google.com with ESMTPSA id z5sm2921100wje.49.2014.08.06.07.42.58 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 06 Aug 2014 07:42:58 -0700 (PDT) Message-ID: <2AFC01BCF35045BB86C38182FB398C2D@alyakaslap> From: "Alex Lyakas" To: "Dave Chinner" Cc: References: <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806123215.GJ20518@dastard> In-Reply-To: <20140806123215.GJ20518@dastard> Subject: Re: use-after-free on log replay failure Date: Wed, 6 Aug 2014 17:43:02 +0300 X-ASG-Orig-Subj: Re: use-after-free on log replay failure MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="UTF-8"; reply-type=original Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-we0-f169.google.com[74.125.82.169] X-Barracuda-Start-Time: 1407336180 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8178 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hello Dave, I applied this patch manually to 3.8.13, but still hitting exact same issue with my reproduction. I still have xlog_recover_iodone callbacks delivered through xfs_buf_bio_end_io scheduling it through xfslogd_workqueue. Some of the callbacks arrive before mount completes: Aug 6 17:31:33 dev kernel: [ 3258.774970] XFS (dm-19): metadata I/O error: block 0x3780001 ("xlog_recover_iodone") error 28 numblks 1 Aug 6 17:31:33 dev kernel: [ 3258.776687] XFS (dm-19): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0743848 Aug 6 17:31:33 dev kernel: [ 3258.777262] XFS (dm-19): I/O Error Detected. Shutting down filesystem Aug 6 17:31:33 dev kernel: [ 3258.778369] XFS (dm-19): Please umount the filesystem and rectify the problem(s) Aug 6 17:31:33 dev kernel: [ 3258.779634] XFS (dm-19): metadata I/O error: block 0x3780002 ("xlog_recover_iodone") error 28 numblks 1 Aug 6 17:31:33 dev kernel: [ 3258.781929] XFS (dm-19): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0743848 Aug 6 17:31:33 dev kernel: [ 3258.781939] XFS (dm-19): metadata I/O error: block 0x3780008 ("xlog_recover_iodone") error 28 numblks 8 Aug 6 17:31:33 dev kernel: [ 3258.784235] XFS (dm-19): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0743848 Aug 6 17:31:33 dev kernel: [ 3258.784260] XFS (dm-19): metadata I/O error: block 0x3780010 ("xlog_recover_iodone") error 28 numblks 8 Aug 6 17:31:33 dev kernel: [ 3258.784389] XFS (dm-19): log mount/recovery failed: error 28 Aug 6 17:31:33 dev kernel: [ 3258.784549] XFS (dm-19): log mount failed And some arrive afterwards, and print garbage. Aug 6 17:31:33 dev kernel: [ 3258.786398] XFS (ˆm&_): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0743848 Aug 6 17:31:33 dev kernel: [ 3258.786404] XFS (ˆm&_): metadata I/O error: block 0x3780018 ("xlog_recover_iodone") error 28 numblks 8 Aug 6 17:31:33 dev kernel: [ 3258.788575] XFS (ˆm&_): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0743848 Aug 6 17:31:33 dev kernel: [ 3258.788614] XFS (ˆm&_): metadata I/O error: block 0x37800a0 ("xlog_recover_iodone") error 28 numblks 16 Aug 6 17:31:33 dev kernel: [ 3258.790849] XFS (ˆm&_): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0743848 Maybe some additional patch is needed for my kernel? Thanks, Alex. -----Original Message----- From: Dave Chinner Sent: 06 August, 2014 3:32 PM To: Alex Lyakas Cc: xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure On Wed, Aug 06, 2014 at 01:05:34PM +0300, Alex Lyakas wrote: > Hi Dave, > > On Tue, Aug 5, 2014 at 2:07 AM, Dave Chinner wrote: > > On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > >> Greetings, > >> > >> we had a log replay failure due to some errors that the underlying > >> block device returned: > >> [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > >> ("xlog_recover_iodone") error 28 numblks 16 > >> [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > >> [49133.802644] XFS (dm-95): log mount failed > > > > #define ENOSPC 28 /* No space left on device */ > > > > You're getting an ENOSPC as a metadata IO error during log recovery? > > Thin provisioning problem, perhaps, > Yes, it is a thin provisioning problem (which I already know the cause > for). > > > and the error is occurring on > > submission rather than completion? If so: > > > > 8d6c121 xfs: fix buffer use after free on IO error > I am not sure what do you mean by "submission rather than completion". > Do you mean that xfs_buf_ioapply_map() returns without submitting any > bios? No, that the bio submission results in immediate failure (e.g. the device goes away, so submission results in ENODEV). Hence when _xfs_buf_ioapply() releases it's IO reference itis the only remaining reference to the buffer and so completion processing is run immediately. i.e. inline from the submission path. Normally IO errors are reported through the bio in IO completion interrupt context. i.e the IO is completed by the hardware and the error status is attached to bio, which is then completed and we get into XFS that way. The IO submision context is long gone at this point.... > In that case, no, bios are submitted to the block device, and it > fails them through a different context with ENOSPC error. I will still > try the patch you mentioned, because it also looks relevant to another > question I addressed to you earlier in: > http://oss.sgi.com/archives/xfs/2013-11/msg00648.html No, that's a different problem. 9c23ecc xfs: unmount does not wait for shutdown during unmount Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Wed Aug 6 10:20:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BCB857FAD for ; Wed, 6 Aug 2014 10:20:50 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9CA0A8F8037 for ; Wed, 6 Aug 2014 08:20:47 -0700 (PDT) X-ASG-Debug-ID: 1407338445-04cbb03b9d348f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id oEvKufwAW1KkJxJb (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 06 Aug 2014 08:20:46 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s76FKinw021024 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 6 Aug 2014 11:20:44 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s76FKhin024758; Wed, 6 Aug 2014 11:20:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A4AC212577C; Wed, 6 Aug 2014 11:20:42 -0400 (EDT) Date: Wed, 6 Aug 2014 11:20:42 -0400 From: Brian Foster To: Alex Lyakas Cc: Dave Chinner , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140806152042.GB39990@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407338446 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: > Hello Dave and Brian, >=20 > Dave, I tried the patch you suggested, but it does not fix the issue. I d= id > some further digging, and it appears that _xfs_buf_ioend(schedule=3D1) ca= n be > called from xfs_buf_iorequest(), which the patch fixes, but also from > xfs_buf_bio_end_io() which is my case. I am reproducing the issue pretty > easily. The flow that I have is like this: > - xlog_recover() calls xlog_find_tail(). This works alright. What's the purpose of a sleep here? > - Now I add a small sleep before calling xlog_do_recover(), and meanwhile= I > instruct my block device to return ENOSPC for any WRITE from now on. >=20 > What seems to happen is that several WRITE bios are submitted and they all > fail. When they do, they reach xfs_buf_ioend() through a stack like this: >=20 > Aug 6 15:23:07 dev kernel: [ 304.410528] [56]xfs*[xfs_buf_ioend:1056] > XFS(dm-19): Scheduling xfs_buf_iodone_work on error > Aug 6 15:23:07 dev kernel: [ 304.410534] Pid: 56, comm: kworker/u:1 > Tainted: G W O 3.8.13-557-generic #1382000791 > Aug 6 15:23:07 dev kernel: [ 304.410537] Call Trace: > Aug 6 15:23:07 dev kernel: [ 304.410587] [] > xfs_buf_ioend+0x1a4/0x1b0 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.410621] [] > _xfs_buf_ioend+0x25/0x30 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.410643] [] > xfs_buf_bio_end_io+0x3d/0x50 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.410652] [] > bio_endio+0x1d/0x40 > ... >=20 > At this point, they are scheduled to run xlog_recover_iodone through > xfslogd_workqueue. > The first callback that gets called, calls xfs_do_force_shutdown in stack > like this: >=20 > Aug 6 15:23:07 dev kernel: [ 304.411791] XFS (dm-19): metadata I/O erro= r: > block 0x3780001 ("xlog_recover_iodone") error 28 numblks 1 > Aug 6 15:23:07 dev kernel: [ 304.413493] XFS (dm-19): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address =3D > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.413837] [] > xfs_do_force_shutdown+0x40/0x180 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413870] [] ? > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413902] [] > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413923] [] > xfs_buf_iodone_work+0x4d/0xa0 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413930] [] > process_one_work+0x141/0x4a0 > Aug 6 15:23:07 dev kernel: [ 304.413937] [] > worker_thread+0x168/0x410 > Aug 6 15:23:07 dev kernel: [ 304.413943] [] ? > manage_workers+0x120/0x120 > Aug 6 15:23:07 dev kernel: [ 304.413949] [] > kthread+0xc0/0xd0 > Aug 6 15:23:07 dev kernel: [ 304.413954] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.413976] [] > ret_from_fork+0x7c/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.413986] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.413990] ---[ end trace 988d698520e1fa81 > ]--- > Aug 6 15:23:07 dev kernel: [ 304.414012] XFS (dm-19): I/O Error Detecte= d. > Shutting down filesystem > Aug 6 15:23:07 dev kernel: [ 304.415936] XFS (dm-19): Please umount the > filesystem and rectify the problem(s) >=20 > But the rest of the callbacks also arrive: > Aug 6 15:23:07 dev kernel: [ 304.417812] XFS (dm-19): metadata I/O erro= r: > block 0x3780002 ("xlog_recover_iodone") error 28 numblks 1 > Aug 6 15:23:07 dev kernel: [ 304.420420] XFS (dm-19): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address =3D > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.420427] XFS (dm-19): metadata I/O erro= r: > block 0x3780008 ("xlog_recover_iodone") error 28 numblks 8 > Aug 6 15:23:07 dev kernel: [ 304.422708] XFS (dm-19): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address =3D > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.422738] XFS (dm-19): metadata I/O erro= r: > block 0x3780010 ("xlog_recover_iodone") error 28 numblks 8 >=20 > The mount sequence fails and goes back to the caller: > Aug 6 15:23:07 dev kernel: [ 304.423438] XFS (dm-19): log mount/recovery > failed: error 28 > Aug 6 15:23:07 dev kernel: [ 304.423757] XFS (dm-19): log mount failed >=20 > But there are still additional callbacks to deliver, which the mount > sequence did not wait for! > Aug 6 15:23:07 dev kernel: [ 304.425717] XFS (=10@dR): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address =3D > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.425723] XFS (=10@dR): metadata I/O err= or: > block 0x3780018 ("xlog_recover_iodone") error 28 numblks 8 > Aug 6 15:23:07 dev kernel: [ 304.428239] XFS (=10@dR): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address =3D > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.428246] XFS (=10@dR): metadata I/O err= or: > block 0x37800a0 ("xlog_recover_iodone") error 28 numblks 16 >=20 > Notice the junk that they are printing! Naturally, because xfs_mount > structure has been kfreed. >=20 > Finally the kernel crashes (instead of printing junk), because the xfs_mo= unt > structure is gone, but the callback tries to access it (printing the name= ): >=20 > Aug 6 15:23:07 dev kernel: [ 304.430796] general protection fault: 0000 > [#1] SMP > Aug 6 15:23:07 dev kernel: [ 304.432035] Modules linked in: xfrm_user > xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 iscsi_scst_tcp(O) > scst_vdisk(O) scst(O) dm_zcache(O) dm_btrfs(O) xfs(O) btrfs(O) libcrc32c > raid456(O) async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq > async_tx raid1(O) md_mod deflate zlib_deflate ctr twofish_generic > twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 > twofish_common camellia_generic serpent_generic blowfish_generic > blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic xcbc > rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin kvm vfat > fat ppdev psmouse microcode nfsd nfs_acl dm_multipath(O) serio_raw > parport_pc nfsv4 dm_iostat(O) mac_hid i2c_piix4 auth_rpcgss nfs fscache > lockd sunrpc lp parport floppy > Aug 6 15:23:07 dev kernel: [ 304.432035] CPU 1 > Aug 6 15:23:07 dev kernel: [ 304.432035] Pid: 133, comm: kworker/1:1H > Tainted: G W O 3.8.13-557-generic #1382000791 Bochs Bochs > Aug 6 15:23:07 dev kernel: [ 304.432035] RIP: 0010:[] > [] strnlen+0xb/0x30 > Aug 6 15:23:07 dev kernel: [ 304.432035] RSP: 0018:ffff880035461b08 > EFLAGS: 00010086 > Aug 6 15:23:07 dev kernel: [ 304.432035] RAX: 0000000000000000 RBX: > ffffffff81e6a4e7 RCX: 0000000000000000 > Aug 6 15:23:07 dev kernel: [ 304.432035] RDX: e4e8390a265c0000 RSI: > ffffffffffffffff RDI: e4e8390a265c0000 > Aug 6 15:23:07 dev kernel: [ 304.432035] RBP: ffff880035461b08 R08: > 000000000000ffff R09: 000000000000ffff > Aug 6 15:23:07 dev kernel: [ 304.432035] R10: 0000000000000000 R11: > 00000000000004cd R12: e4e8390a265c0000 > Aug 6 15:23:07 dev kernel: [ 304.432035] R13: ffffffff81e6a8c0 R14: > 0000000000000000 R15: 000000000000ffff > Aug 6 15:23:07 dev kernel: [ 304.432035] FS: 0000000000000000(0000) > GS:ffff88007fc80000(0000) knlGS:0000000000000000 > Aug 6 15:23:07 dev kernel: [ 304.432035] CS: 0010 DS: 0000 ES: 0000 CR= 0: > 000000008005003b > Aug 6 15:23:07 dev kernel: [ 304.432035] CR2: 00007fc902ffbfd8 CR3: > 000000007702a000 CR4: 00000000000006e0 > Aug 6 15:23:07 dev kernel: [ 304.432035] DR0: 0000000000000000 DR1: > 0000000000000000 DR2: 0000000000000000 > Aug 6 15:23:07 dev kernel: [ 304.432035] DR3: 0000000000000000 DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Aug 6 15:23:07 dev kernel: [ 304.432035] Process kworker/1:1H (pid: 133, > threadinfo ffff880035460000, task ffff880035412e00) > Aug 6 15:23:07 dev kernel: [ 304.432035] Stack: > Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461b48 > ffffffff8133dd5e 0000000000000000 ffffffff81e6a4e7 > Aug 6 15:23:07 dev kernel: [ 304.432035] ffffffffa0566cba > ffff880035461c80 ffffffffa0566cba ffffffff81e6a8c0 > Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461bc8 > ffffffff8133ef59 ffff880035461bc8 ffffffff81c84040 > Aug 6 15:23:07 dev kernel: [ 304.432035] Call Trace: > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > string.isra.4+0x3e/0xd0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > vsnprintf+0x219/0x640 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > vscnprintf+0x11/0x30 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > vprintk_emit+0xc1/0x490 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > vprintk_emit+0x170/0x490 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > printk+0x61/0x63 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > __xfs_printk+0x31/0x50 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xfs_notice+0x53/0x60 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xfs_do_force_shutdown+0xf5/0x180 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xfs_buf_iodone_work+0x4d/0xa0 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > process_one_work+0x141/0x4a0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > worker_thread+0x168/0x410 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > manage_workers+0x120/0x120 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > kthread+0xc0/0xd0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > ret_from_fork+0x7c/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.432035] Code: 31 c0 80 3f 00 55 48 89 = e5 > 74 11 48 89 f8 66 90 48 83 c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 > c0 48 85 f6 48 89 e5 74 23 <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83= ee > 01 80 38 00 74 > Aug 6 15:23:07 dev kernel: [ 304.432035] RIP [] > strnlen+0xb/0x30 > Aug 6 15:23:07 dev kernel: [ 304.432035] RSP >=20 >=20 > So previously you said: "So, something is corrupting memory and stamping = all > over the XFS structures." and also "given you have a bunch of out of tree > modules loaded (and some which are experiemental) suggests that you have a > problem with your storage...". >=20 > But I believe, my analysis shows that during the mount sequence XFS does = not > wait properly for all the bios to complete, before failing the mount > sequence back to the caller. >=20 As an experiment, what about the following? Compile tested only and not safe for general use. What might help more is to see if you can create a reproducer on a recent, clean kernel. Perhaps a metadump of your reproducer fs combined with whatever block device ENOSPC hack you're using would do it. Brian ---8<--- diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index cd7b8ca..fbcf524 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( * case nothing will ever complete. It returns the I/O error code, if any= , or * 0 if there was no error. */ -int -xfs_buf_iowait( - xfs_buf_t *bp) +static int +__xfs_buf_iowait( + struct xfs_buf *bp, + bool skip_error) { trace_xfs_buf_iowait(bp, _RET_IP_); =20 - if (!bp->b_error) + if (skip_error || !bp->b_error) wait_for_completion(&bp->b_iowait); =20 trace_xfs_buf_iowait_done(bp, _RET_IP_); return bp->b_error; } =20 +int +xfs_buf_iowait( + struct xfs_buf *bp) +{ + return __xfs_buf_iowait(bp, false); +} + xfs_caddr_t xfs_buf_offset( xfs_buf_t *bp, @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( bp =3D list_first_entry(&io_list, struct xfs_buf, b_list); =20 list_del_init(&bp->b_list); - error2 =3D xfs_buf_iowait(bp); + error2 =3D __xfs_buf_iowait(bp, true); xfs_buf_relse(bp); if (!error) error =3D error2; --- > Thanks, > Alex. >=20 >=20 >=20 > -----Original Message----- From: Dave Chinner > Sent: 05 August, 2014 2:07 AM > To: Alex Lyakas > Cc: xfs@oss.sgi.com > Subject: Re: use-after-free on log replay failure >=20 > On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > >Greetings, > > > >we had a log replay failure due to some errors that the underlying > >block device returned: > >[49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > >("xlog_recover_iodone") error 28 numblks 16 > >[49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > >[49133.802644] XFS (dm-95): log mount failed >=20 > #define ENOSPC 28 /* No space left on device */ >=20 > You're getting an ENOSPC as a metadata IO error during log recovery? > Thin provisioning problem, perhaps, and the error is occurring on > submission rather than completion? If so: >=20 > 8d6c121 xfs: fix buffer use after free on IO error >=20 > Cheers, >=20 > Dave. > --=20 > Dave Chinner > david@fromorbit.com >=20 From alex@zadarastorage.com Wed Aug 6 10:29:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BA25D7F76 for ; Wed, 6 Aug 2014 10:29:10 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 55675AC005 for ; Wed, 6 Aug 2014 08:29:07 -0700 (PDT) X-ASG-Debug-ID: 1407338943-04bdf06ecf35940001-NocioJ Received: from mail-we0-f179.google.com (mail-we0-f179.google.com [74.125.82.179]) by cuda.sgi.com with ESMTP id ab6OMb4xrakrstT1 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 06 Aug 2014 08:29:04 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 74.125.82.179 Received: by mail-we0-f179.google.com with SMTP id u57so2819988wes.10 for ; Wed, 06 Aug 2014 08:29:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=0ijq1E4e9r3ErT0QNMwyGAE7AnolCqSua7glZxbrius=; b=BJwPGR2Ni/GMWQefj5wuZkHxnPB+1ghC3SAPNnWVSGK2hjiTC/bfICkYySXySLAVqv dOE+2+TyHs3kbioOFgZSvq6hqLdX32TYgKudYn9mUcMDxfc0qpEqO8SB+Y9FIJkRTr22 X+T8XwM0FnWNqB377xHw6RHb8Zqkov55EIT+x7NHIZ/u9MMPaT6TOBt+Ls/Ab+fSLoJS a4ZXNJAyLmhtBn4Tpm3NolAvp7Rb6n6bqrXpPXt3Bq0zXI4iSyeBtml8AbrUW0nSQnSO qx8KAt0aplZ3kZT+nhffDF2nys58EITkoPEUW2SMSBTNU2iazRbj47FhT69nT/iFkCDk akDA== X-Gm-Message-State: ALoCoQlkxWWKtXVPVGJ2kGy8Sy+YtIkQaryVd2tqFfLWrunCRxrnIE6IXjvq4+1LUU+EZKI+L6PF X-Received: by 10.180.101.65 with SMTP id fe1mr26094508wib.53.1407338943485; Wed, 06 Aug 2014 08:29:03 -0700 (PDT) Received: from alyakaslap ([212.143.144.103]) by mx.google.com with ESMTPSA id lq15sm7191038wic.1.2014.08.06.08.29.02 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 06 Aug 2014 08:29:02 -0700 (PDT) Message-ID: From: "Alex Lyakas" To: "Brian Foster" Cc: "Dave Chinner" , References: <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> In-Reply-To: <20140806152042.GB39990@bfoster.bfoster> Subject: Re: use-after-free on log replay failure Date: Wed, 6 Aug 2014 18:28:34 +0300 X-ASG-Orig-Subj: Re: use-after-free on log replay failure MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-we0-f179.google.com[74.125.82.179] X-Barracuda-Start-Time: 1407338944 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8180 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Brian, The purpose of the sleep is like this: I added a module parameter to my block device, which says "from now on fail all WRITEs with ENOSPC". If I set this parameter before mounting, then xlog_find_tail() fails. This does not reproduce my problem. So I want xlog_find_tail() to succeed, and then start returning errors. So I need the sleep so that I can set my parameter, before actual log recovery is attempted:) Will try what you suggest. Thanks, Alex. -----Original Message----- From: Brian Foster Sent: 06 August, 2014 6:20 PM To: Alex Lyakas Cc: Dave Chinner ; xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: > Hello Dave and Brian, > > Dave, I tried the patch you suggested, but it does not fix the issue. I > did > some further digging, and it appears that _xfs_buf_ioend(schedule=1) can > be > called from xfs_buf_iorequest(), which the patch fixes, but also from > xfs_buf_bio_end_io() which is my case. I am reproducing the issue pretty > easily. The flow that I have is like this: > - xlog_recover() calls xlog_find_tail(). This works alright. What's the purpose of a sleep here? > - Now I add a small sleep before calling xlog_do_recover(), and meanwhile > I > instruct my block device to return ENOSPC for any WRITE from now on. > > What seems to happen is that several WRITE bios are submitted and they all > fail. When they do, they reach xfs_buf_ioend() through a stack like this: > > Aug 6 15:23:07 dev kernel: [ 304.410528] [56]xfs*[xfs_buf_ioend:1056] > XFS(dm-19): Scheduling xfs_buf_iodone_work on error > Aug 6 15:23:07 dev kernel: [ 304.410534] Pid: 56, comm: kworker/u:1 > Tainted: G W O 3.8.13-557-generic #1382000791 > Aug 6 15:23:07 dev kernel: [ 304.410537] Call Trace: > Aug 6 15:23:07 dev kernel: [ 304.410587] [] > xfs_buf_ioend+0x1a4/0x1b0 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.410621] [] > _xfs_buf_ioend+0x25/0x30 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.410643] [] > xfs_buf_bio_end_io+0x3d/0x50 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.410652] [] > bio_endio+0x1d/0x40 > ... > > At this point, they are scheduled to run xlog_recover_iodone through > xfslogd_workqueue. > The first callback that gets called, calls xfs_do_force_shutdown in stack > like this: > > Aug 6 15:23:07 dev kernel: [ 304.411791] XFS (dm-19): metadata I/O > error: > block 0x3780001 ("xlog_recover_iodone") error 28 numblks 1 > Aug 6 15:23:07 dev kernel: [ 304.413493] XFS (dm-19): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.413837] [] > xfs_do_force_shutdown+0x40/0x180 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413870] [] ? > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413902] [] > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413923] [] > xfs_buf_iodone_work+0x4d/0xa0 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.413930] [] > process_one_work+0x141/0x4a0 > Aug 6 15:23:07 dev kernel: [ 304.413937] [] > worker_thread+0x168/0x410 > Aug 6 15:23:07 dev kernel: [ 304.413943] [] ? > manage_workers+0x120/0x120 > Aug 6 15:23:07 dev kernel: [ 304.413949] [] > kthread+0xc0/0xd0 > Aug 6 15:23:07 dev kernel: [ 304.413954] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.413976] [] > ret_from_fork+0x7c/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.413986] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.413990] ---[ end trace 988d698520e1fa81 > ]--- > Aug 6 15:23:07 dev kernel: [ 304.414012] XFS (dm-19): I/O Error > Detected. > Shutting down filesystem > Aug 6 15:23:07 dev kernel: [ 304.415936] XFS (dm-19): Please umount the > filesystem and rectify the problem(s) > > But the rest of the callbacks also arrive: > Aug 6 15:23:07 dev kernel: [ 304.417812] XFS (dm-19): metadata I/O > error: > block 0x3780002 ("xlog_recover_iodone") error 28 numblks 1 > Aug 6 15:23:07 dev kernel: [ 304.420420] XFS (dm-19): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.420427] XFS (dm-19): metadata I/O > error: > block 0x3780008 ("xlog_recover_iodone") error 28 numblks 8 > Aug 6 15:23:07 dev kernel: [ 304.422708] XFS (dm-19): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.422738] XFS (dm-19): metadata I/O > error: > block 0x3780010 ("xlog_recover_iodone") error 28 numblks 8 > > The mount sequence fails and goes back to the caller: > Aug 6 15:23:07 dev kernel: [ 304.423438] XFS (dm-19): log mount/recovery > failed: error 28 > Aug 6 15:23:07 dev kernel: [ 304.423757] XFS (dm-19): log mount failed > > But there are still additional callbacks to deliver, which the mount > sequence did not wait for! > Aug 6 15:23:07 dev kernel: [ 304.425717] XFS (@dR): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.425723] XFS (@dR): metadata I/O error: > block 0x3780018 ("xlog_recover_iodone") error 28 numblks 8 > Aug 6 15:23:07 dev kernel: [ 304.428239] XFS (@dR): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > 0xffffffffa0526848 > Aug 6 15:23:07 dev kernel: [ 304.428246] XFS (@dR): metadata I/O error: > block 0x37800a0 ("xlog_recover_iodone") error 28 numblks 16 > > Notice the junk that they are printing! Naturally, because xfs_mount > structure has been kfreed. > > Finally the kernel crashes (instead of printing junk), because the > xfs_mount > structure is gone, but the callback tries to access it (printing the > name): > > Aug 6 15:23:07 dev kernel: [ 304.430796] general protection fault: 0000 > [#1] SMP > Aug 6 15:23:07 dev kernel: [ 304.432035] Modules linked in: xfrm_user > xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 iscsi_scst_tcp(O) > scst_vdisk(O) scst(O) dm_zcache(O) dm_btrfs(O) xfs(O) btrfs(O) libcrc32c > raid456(O) async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq > async_tx raid1(O) md_mod deflate zlib_deflate ctr twofish_generic > twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 > twofish_common camellia_generic serpent_generic blowfish_generic > blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic xcbc > rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin kvm vfat > fat ppdev psmouse microcode nfsd nfs_acl dm_multipath(O) serio_raw > parport_pc nfsv4 dm_iostat(O) mac_hid i2c_piix4 auth_rpcgss nfs fscache > lockd sunrpc lp parport floppy > Aug 6 15:23:07 dev kernel: [ 304.432035] CPU 1 > Aug 6 15:23:07 dev kernel: [ 304.432035] Pid: 133, comm: kworker/1:1H > Tainted: G W O 3.8.13-557-generic #1382000791 Bochs Bochs > Aug 6 15:23:07 dev kernel: [ 304.432035] RIP: 0010:[] > [] strnlen+0xb/0x30 > Aug 6 15:23:07 dev kernel: [ 304.432035] RSP: 0018:ffff880035461b08 > EFLAGS: 00010086 > Aug 6 15:23:07 dev kernel: [ 304.432035] RAX: 0000000000000000 RBX: > ffffffff81e6a4e7 RCX: 0000000000000000 > Aug 6 15:23:07 dev kernel: [ 304.432035] RDX: e4e8390a265c0000 RSI: > ffffffffffffffff RDI: e4e8390a265c0000 > Aug 6 15:23:07 dev kernel: [ 304.432035] RBP: ffff880035461b08 R08: > 000000000000ffff R09: 000000000000ffff > Aug 6 15:23:07 dev kernel: [ 304.432035] R10: 0000000000000000 R11: > 00000000000004cd R12: e4e8390a265c0000 > Aug 6 15:23:07 dev kernel: [ 304.432035] R13: ffffffff81e6a8c0 R14: > 0000000000000000 R15: 000000000000ffff > Aug 6 15:23:07 dev kernel: [ 304.432035] FS: 0000000000000000(0000) > GS:ffff88007fc80000(0000) knlGS:0000000000000000 > Aug 6 15:23:07 dev kernel: [ 304.432035] CS: 0010 DS: 0000 ES: 0000 > CR0: > 000000008005003b > Aug 6 15:23:07 dev kernel: [ 304.432035] CR2: 00007fc902ffbfd8 CR3: > 000000007702a000 CR4: 00000000000006e0 > Aug 6 15:23:07 dev kernel: [ 304.432035] DR0: 0000000000000000 DR1: > 0000000000000000 DR2: 0000000000000000 > Aug 6 15:23:07 dev kernel: [ 304.432035] DR3: 0000000000000000 DR6: > 00000000ffff0ff0 DR7: 0000000000000400 > Aug 6 15:23:07 dev kernel: [ 304.432035] Process kworker/1:1H (pid: 133, > threadinfo ffff880035460000, task ffff880035412e00) > Aug 6 15:23:07 dev kernel: [ 304.432035] Stack: > Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461b48 > ffffffff8133dd5e 0000000000000000 ffffffff81e6a4e7 > Aug 6 15:23:07 dev kernel: [ 304.432035] ffffffffa0566cba > ffff880035461c80 ffffffffa0566cba ffffffff81e6a8c0 > Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461bc8 > ffffffff8133ef59 ffff880035461bc8 ffffffff81c84040 > Aug 6 15:23:07 dev kernel: [ 304.432035] Call Trace: > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > string.isra.4+0x3e/0xd0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > vsnprintf+0x219/0x640 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > vscnprintf+0x11/0x30 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > vprintk_emit+0xc1/0x490 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > vprintk_emit+0x170/0x490 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > printk+0x61/0x63 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > __xfs_printk+0x31/0x50 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xfs_notice+0x53/0x60 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xfs_do_force_shutdown+0xf5/0x180 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xlog_recover_iodone+0x48/0x70 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > xfs_buf_iodone_work+0x4d/0xa0 [xfs] > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > process_one_work+0x141/0x4a0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > worker_thread+0x168/0x410 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > manage_workers+0x120/0x120 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > kthread+0xc0/0xd0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] > ret_from_fork+0x7c/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > flush_kthread_worker+0xb0/0xb0 > Aug 6 15:23:07 dev kernel: [ 304.432035] Code: 31 c0 80 3f 00 55 48 89 > e5 > 74 11 48 89 f8 66 90 48 83 c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 > c0 48 85 f6 48 89 e5 74 23 <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83 > ee > 01 80 38 00 74 > Aug 6 15:23:07 dev kernel: [ 304.432035] RIP [] > strnlen+0xb/0x30 > Aug 6 15:23:07 dev kernel: [ 304.432035] RSP > > > So previously you said: "So, something is corrupting memory and stamping > all > over the XFS structures." and also "given you have a bunch of out of tree > modules loaded (and some which are experiemental) suggests that you have a > problem with your storage...". > > But I believe, my analysis shows that during the mount sequence XFS does > not > wait properly for all the bios to complete, before failing the mount > sequence back to the caller. > As an experiment, what about the following? Compile tested only and not safe for general use. What might help more is to see if you can create a reproducer on a recent, clean kernel. Perhaps a metadump of your reproducer fs combined with whatever block device ENOSPC hack you're using would do it. Brian ---8<--- diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index cd7b8ca..fbcf524 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( * case nothing will ever complete. It returns the I/O error code, if any, or * 0 if there was no error. */ -int -xfs_buf_iowait( - xfs_buf_t *bp) +static int +__xfs_buf_iowait( + struct xfs_buf *bp, + bool skip_error) { trace_xfs_buf_iowait(bp, _RET_IP_); - if (!bp->b_error) + if (skip_error || !bp->b_error) wait_for_completion(&bp->b_iowait); trace_xfs_buf_iowait_done(bp, _RET_IP_); return bp->b_error; } +int +xfs_buf_iowait( + struct xfs_buf *bp) +{ + return __xfs_buf_iowait(bp, false); +} + xfs_caddr_t xfs_buf_offset( xfs_buf_t *bp, @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( bp = list_first_entry(&io_list, struct xfs_buf, b_list); list_del_init(&bp->b_list); - error2 = xfs_buf_iowait(bp); + error2 = __xfs_buf_iowait(bp, true); xfs_buf_relse(bp); if (!error) error = error2; --- > Thanks, > Alex. > > > > -----Original Message----- From: Dave Chinner > Sent: 05 August, 2014 2:07 AM > To: Alex Lyakas > Cc: xfs@oss.sgi.com > Subject: Re: use-after-free on log replay failure > > On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > >Greetings, > > > >we had a log replay failure due to some errors that the underlying > >block device returned: > >[49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > >("xlog_recover_iodone") error 28 numblks 16 > >[49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > >[49133.802644] XFS (dm-95): log mount failed > > #define ENOSPC 28 /* No space left on device */ > > You're getting an ENOSPC as a metadata IO error during log recovery? > Thin provisioning problem, perhaps, and the error is occurring on > submission rather than completion? If so: > > 8d6c121 xfs: fix buffer use after free on IO error > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > From david@fromorbit.com Wed Aug 6 19:09:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 69AAA7FA2 for ; Wed, 6 Aug 2014 19:09:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5884B8F8052 for ; Wed, 6 Aug 2014 17:09:37 -0700 (PDT) X-ASG-Debug-ID: 1407370173-04cb6c3f6d14370001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id DTixTeFzKYSywLyA for ; Wed, 06 Aug 2014 17:09:34 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuwOAC3D4lN5LDJ8PGdsb2JhbABagw0fM1eCJ6t8Bp5GCodEAgKBEhcFAQEBATg2hAsCSwgWAggDGCQDMQUUCQgDBy0UBwIEiCAOxBAYhWSHQIElCQsGAVCCPw9EJIEcBZUsg3GCdYFVlHCCCysvgQUIFw Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 07 Aug 2014 09:39:24 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XFBGk-0001KA-8u; Thu, 07 Aug 2014 10:09:22 +1000 Date: Thu, 7 Aug 2014 10:09:22 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: fstests@vger.kernel.org Subject: [DISCUSS] Moving from oss.sgi.com to kernel.org Message-ID: <20140807000922.GA26465@dastard> X-ASG-Orig-Subj: [DISCUSS] Moving from oss.sgi.com to kernel.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k+w/mQv8wyuph6w0" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407370173 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8198 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi folks, A few recent incidents, discoveries and comments have me concerned about the viability of using oss.sgi.com to host XFS deveopment and community support. We are very grateful for the time, effort and money that SGI has put into providing oss.sgi.com for us over many, many years, but these recent issues have brought the state of oss.sgi.com and hence it's viability as a host for XFS development to my immediate attention. Ultimately, as the XFS maintainer, I'm responsible for the contents of the pull requests sent to Linus and the code we distribute to users, distros and developers. That means I need to be able to trust that the hosting infrastructure is secure and well maintained. The short story is that I can't trust oss.sgi.com to be maintained and secure anymore. The recent DOS issues with oss.sgi.com made it clear that it is essentially unmaintained and the SGI admins don't have time to address issues that arise. This little snippet of the conversion about blocking the rogue spider causing the recent ftp and gitweb DOS problems is instructive: [19/07/14 09:07] trev, it's you guys' box :) [19/07/14 09:07] you get to make it work=20 [19/07/14 09:07] I am not eh administrator, and if I'm forced = to do this sort of thing I'll just take the content elsewhere.... [19/07/14 09:08] dchinner__, please do so. I don't have much time fo= r oss anymore It should be no surprise that since this conversation I've been looking at what is involved in moving everything XFS off oss.sgi.com to kernel.org. Right now I have the main XFS repositories up to date on kernel.org. For userspace I've simply pushed the current trees and tags to the pre-existing repositories here: git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git git://git.kernel.org/pub/scm/fs/xfs/xfsdump-dev.git git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git These trees currently have the same content as the trees on oss.sgi.com. I may rename these as a result of discussions here (e.g. some people don't like the -dev suffix on the trees) so it's best for people to continue to use the trees on oss.sgi.com until this disucssion comes to a conclusion. My new kernel dev tree can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git This is my immediate concern: this tree, regardless of anything else, the tree I am going to be asking Linus to pull from - it is now *my* master tree and the tree on oss.sgi.com will simply mirror that tree. For the short term, I will set up a cron job to keep the oss trees up to date with the trees on kernel.org. By "short-term" I mean till the end of the year at most. This will allow people time to change their workflows, update their repos, bookmarks, etc in their own time so hopefully not take anyone by surprise when the trees on oss.sgi.com stop updating. "short-term" is a rubbery concept - if anyone things it should be longer or shorter or whether a completely different approach is warranted, please speak up. Over the next few days I will move the remaining xfs trees to kernel.org - the historical kernel archive and documentation trees - and then I'll maintain them as the primary trees with the same short term mirroring backup. In moving these trees, we will need to update some documentation (e.g. the "where to get" documentation on the xfs.org wiki) and links, as well as place a "readme" in the gitweb main page on oss.sgi.com to indicate that the up-to-date XFS trees are now on kernel.org and documenting the drop-dead date to when the trees on oss will no longer be kept up to date. The only remaining issue is what to do about tarball releases for xfsprogs/xfsdump/fstests. We currently have a bunch of historic releases in the ftp release area on oss.sgi.com. I will organise a release directory on kernel.org for future releases (location yet to be confirmed), but I'm not sure what to do with the older releases. I'm open to suggestions here, but the limit of what I will try to move to kernel.org is signed tarballs that I have verified. For xfstests, I think this would be a good time to rename the project officially as well (i.e. to "fstests"). I'll need to talk to the kernel.org admins on where to locate it (pub/scm/fs/fstests is the best candidate, I think), but in the mean time I'll just mirror to oss.sgi.com as per the above so nobody needs to change anything until we sort out the final location/name of the tree. If anyone has any other ideas on this, please let me know, otherwise I'll just proceed with this plan. In conjunction with this source tree move, I'd also like to start the move the mailing list. We have ongoing spam, performance and user access issues with oss.sgi.com, so IMO if we are moving source trees off this host we should also move the mailing list to kernel.org infrastructure. To that end, there is a linux-xfs@vger.kernel.org list already - it was created at the same time that the above kernel.org repositories were created, but we've never used it. It is archived here: http://www.spinics.net/lists/linux-xfs/ Moving the mailing list is going to be something that affects more than just the developers - we've got lots of documentation that points at this list and there are lots of users that are subscribed, read it though nntp gateways, have aliases for it, etc so we need a good transition plan here. I'm not sure what the best approach - perhaps just forwarding all email from xfs@oss.sgi.com to linux-xfs@vger.kernel.org will solve most transitional problems for users that aren't aware of the change or are following old documentation or "please report bug" messages from xfs_repair. But it means that everyone needs to subscribe to the new list and probably unsubscribe from the old list. I dont see how we can avoid that in the long term, but I'd like to minimise the pain as much as possible for everyone. Again, I'm open to suggestions on how to approach this and maintain the oss list aliases for long enough that people and search engines learn about the new list. I would like to make this as painless as possible for everyone. This isn't the only solution to the problems we have with oss.sgi.com, but it's the path of least effort/greatest gain for me. If anyone has any ideas on alternative solutions, reservations about moving to kernel.org infrastructure and/or suggestions to make it less painful for everyone, please speak up now. Cheers, Dave. --=20 Dave Chinner david@fromorbit.com --k+w/mQv8wyuph6w0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJT4sOxAAoJEK3oKUf0dfodHRsQANRBTF02Q742McbEZxb0J9IB EKz+eLegRB5zRaHQAa7GEVq5xSnEJvX4/M2XTCK+HBCNdGy6DPH3777Tf6869uLt 5YLf1hIhQso/o3FPqaRdb9UmaV/fXGjAjBIcTneCHThMO1JWRpyLlZBAcYIrO3yQ MD8xjypUk/KxRxLZU54kXHZG5TZ6abXF6MAksBBX7gnKlLMBeVwBznn64WLUebAF aJEJCiaiBKYo0Hcd7MkKLtBdbi977Mk/pkMS1U3AILrRBN40jl7o7pFDnyApzTy6 r03VbWTuZSgaPQF32SfSqBXUTAKaOJA4zEr61QuS7yyvVhm2a6YcY92/yw1ia7AY kT5eMqn9vxZwPHI8b/38Dhrm/HJEXS/TkCAafCQlaMN7U0auvpsZtHQain2s4Vm4 SW7hzb26Y1zy/A0pLDGz0GHEs+Hml9DuZvu5BbmCtFnrsi6u0DpHUorwQ4JxWuiJ SbonlU1Wf4g7h2SwShoPmtRKS2ar2vFmS5jnuUoq7HtWjLJwFryKuDHHjaDReVVA JeV4Ux13BeRnGqFpn7Xbaphm/3I3fFQc7h6qU+u/Clt6u6bC1+2j41Nq35fCT04M wB7ogbW19elsr/hbZBINLWmb5k6lZ8WFXMKuvlUdEvwTL89FTOhimWZRrKNlDSDc TSDH886bZf4WgoN8h505 =4kZa -----END PGP SIGNATURE----- --k+w/mQv8wyuph6w0-- From felipemonteiro.carvalho@gmail.com Thu Aug 7 06:51:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CAB887F7E for ; Thu, 7 Aug 2014 06:51:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B98ED30404E for ; Thu, 7 Aug 2014 04:51:06 -0700 (PDT) X-ASG-Debug-ID: 1407412262-04cb6c3f6f362f0001-NocioJ Received: from mail-pd0-f170.google.com (mail-pd0-f170.google.com [209.85.192.170]) by cuda.sgi.com with ESMTP id 1zWRB42tEuhYfUwf (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 07 Aug 2014 04:51:02 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.192.170 Received: by mail-pd0-f170.google.com with SMTP id g10so5100019pdj.29 for ; Thu, 07 Aug 2014 04:51:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=bM0spycRMLx+DsVaZkUmPNpGZ0onAta8E92SORAlvMY=; b=0Q4gc7yPtgJE75KdYeajeFhIY8iaga1D+VuNJKzsxegZvSbRk72/3JFiOevLkgkUVt J8Pnf0jWA3UIr4gBTIYxLI/oteMs+1YbhU4vEw4hK/JX4tcRG6Foi0rPtmf+oQ3ye5o3 BWkrgIrFawySlrEvE6psUhtSCjXy/Q9xo+Rdw7zPuu64vLnotEEx9YsZSZ1BWxtO2pyR /1K6NuO3+tPSDjzgolq7y8yGhHy1dA4cKJe1Cb79uKIrYIqQ2JSIYyQ2TVebN9azIVJh K2MiQMSgcnInPfm7UWQkyR+fLIur2U4e5igmhDv+SWD/ZDkhk9zZh/rPYh6b91IpO6Qb pKsg== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.67.4.234 with SMTP id ch10mr17060087pad.3.1407412261841; Thu, 07 Aug 2014 04:51:01 -0700 (PDT) Received: by 10.66.50.9 with HTTP; Thu, 7 Aug 2014 04:51:01 -0700 (PDT) In-Reply-To: <20140806142329.GA39990@bfoster.bfoster> References: <20140806113447.GA14820@bfoster.bfoster> <20140806142329.GA39990@bfoster.bfoster> Date: Thu, 7 Aug 2014 13:51:01 +0200 Message-ID: Subject: Re: xfs_bmbt_rec_64 leading to wrong blocks From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Re: xfs_bmbt_rec_64 leading to wrong blocks To: Brian Foster Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pd0-f170.google.com[209.85.192.170] X-Barracuda-Start-Time: 1407412262 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8214 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hello, Thanks, that worked perfectly =) My actual idea is to not only read the partition, but to also recover deleted/corrupted files. With the information that you provided I advanced a lot in this direction, and I can now recover the file information in that memory area completely. I can also obtain the inode nr (well 4 bytes of it are preserved, but its better then nothing), but my current problem is with the inode itself. In a deleted file the following changes are done by the linux driver in the inode: xfs_dinode_core_t.di_mode was changed to zero xfs_dinode_core_t.di_format was changed from 1 (local) to 2 (extent) But di_mode in particular is a key element as I am using it to differentiate files from directories. Is there anything else what I can use to differentiate files from directories in case di_mode was corrupted? I am searching here but so far I didn't find anything... thanks, -- Felipe Monteiro de Carvalho From bfoster@redhat.com Thu Aug 7 07:32:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7D6297F82 for ; Thu, 7 Aug 2014 07:32:16 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6C7698F8065 for ; Thu, 7 Aug 2014 05:32:13 -0700 (PDT) X-ASG-Debug-ID: 1407414731-04cb6c3f6e382d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 5NCPXjAr5Hqk1mjB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 07 Aug 2014 05:32:12 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s77CW3I8008579 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 7 Aug 2014 08:32:03 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s77CW3Nk008294; Thu, 7 Aug 2014 08:32:03 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8871512577C; Thu, 7 Aug 2014 08:32:02 -0400 (EDT) Date: Thu, 7 Aug 2014 08:32:02 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com, fstests@vger.kernel.org Subject: Re: [DISCUSS] Moving from oss.sgi.com to kernel.org Message-ID: <20140807123202.GA53888@bfoster.bfoster> X-ASG-Orig-Subj: Re: [DISCUSS] Moving from oss.sgi.com to kernel.org References: <20140807000922.GA26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140807000922.GA26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407414731 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 07, 2014 at 10:09:22AM +1000, Dave Chinner wrote: > Hi folks, > > A few recent incidents, discoveries and comments have me concerned > about the viability of using oss.sgi.com to host XFS deveopment and > community support. > > We are very grateful for the time, effort and money that SGI has put > into providing oss.sgi.com for us over many, many years, but these > recent issues have brought the state of oss.sgi.com and hence it's > viability as a host for XFS development to my immediate attention. > > Ultimately, as the XFS maintainer, I'm responsible for the contents > of the pull requests sent to Linus and the code we distribute to > users, distros and developers. That means I need to be able to trust > that the hosting infrastructure is secure and well maintained. > > The short story is that I can't trust oss.sgi.com to be maintained > and secure anymore. The recent DOS issues with oss.sgi.com made it > clear that it is essentially unmaintained and the SGI admins don't > have time to address issues that arise. This little snippet of the > conversion about blocking the rogue spider causing the recent > ftp and gitweb DOS problems is instructive: > > [19/07/14 09:07] trev, it's you guys' box :) > [19/07/14 09:07] you get to make it work > [19/07/14 09:07] I am not eh administrator, and if I'm forced to do this sort of thing I'll just take the content elsewhere.... > [19/07/14 09:08] dchinner__, please do so. I don't have much time for oss anymore > > It should be no surprise that since this conversation I've been > looking at what is involved in moving everything XFS off oss.sgi.com > to kernel.org. Right now I have the main XFS repositories up to > date on kernel.org. For userspace I've simply pushed the current > trees and tags to the pre-existing repositories here: > > git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git > git://git.kernel.org/pub/scm/fs/xfs/xfsdump-dev.git > git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git > > These trees currently have the same content as the trees on > oss.sgi.com. I may rename these as a result of discussions here > (e.g. some people don't like the -dev suffix on the trees) so it's > best for people to continue to use the trees on oss.sgi.com until > this disucssion comes to a conclusion. > These should be renamed, IMO. -dev implies the repo is some kind of subtree. Furthermore, aside from the issue of updating current references to point to new trees, I'm sure there's a decent enough archive of references on the mailing list to these particular trees being deprecated. > My new kernel dev tree can be found here: > > git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git > > This is my immediate concern: this tree, regardless of anything > else, the tree I am going to be asking Linus to pull from - it is > now *my* master tree and the tree on oss.sgi.com will simply mirror > that tree. > > For the short term, I will set up a cron job to keep the oss trees > up to date with the trees on kernel.org. By "short-term" I mean till > the end of the year at most. This will allow people time to change > their workflows, update their repos, bookmarks, etc in their own > time so hopefully not take anyone by surprise when the trees on > oss.sgi.com stop updating. "short-term" is a rubbery concept - if > anyone things it should be longer or shorter or whether a completely > different approach is warranted, please speak up. > What's the expected frequency of mirror updates? I'm assuming something nightly, so changes should reflect generally within 24 hours..? > Over the next few days I will move the remaining xfs trees to > kernel.org - the historical kernel archive and documentation trees - > and then I'll maintain them as the primary trees with the same > short term mirroring backup. > > In moving these trees, we will need to update some documentation > (e.g. the "where to get" documentation on the xfs.org wiki) and > links, as well as place a "readme" in the gitweb main page on > oss.sgi.com to indicate that the up-to-date XFS trees are now on > kernel.org and documenting the drop-dead date to when the trees on > oss will no longer be kept up to date. > It might be a good idea to somehow mark those repos when that drop dead date hits. Perhaps rename master and drop a single README file with a reference to the new repo, etc. Just a thought considering it seems like at that point we could have up to three repos (if the -dev renames end up being new repo creations or something, and if nuking the old ones isn't an option) for some projects. > The only remaining issue is what to do about tarball releases for > xfsprogs/xfsdump/fstests. We currently have a bunch of historic > releases in the ftp release area on oss.sgi.com. I will organise a > release directory on kernel.org for future releases (location yet to > be confirmed), but I'm not sure what to do with the older releases. > I'm open to suggestions here, but the limit of what I will try to > move to kernel.org is signed tarballs that I have verified. > > For xfstests, I think this would be a good time to rename the > project officially as well (i.e. to "fstests"). I'll need to talk to > the kernel.org admins on where to locate it (pub/scm/fs/fstests is > the best candidate, I think), but in the mean time I'll just mirror > to oss.sgi.com as per the above so nobody needs to change anything > until we sort out the final location/name of the tree. If anyone has > any other ideas on this, please let me know, otherwise I'll just > proceed with this plan. > Personally, I can switch kernel trees fairly easily. I've cloned the linux-xfs tree and can either move over whatever things I'm working on or just start new efforts in the new tree. That said, I'm hesitant to bother with any of the -dev repos until it's clear what's going to happen with them (which is pretty much what you suggested above). In other words, it's easiest to move once rather than from oss.sgi.com xfstests, to kernel.org xfstests-dev then to kernel.org fstests. Of course, it's good to have the latest repos replicated somewhere if there is concern about the stability of the current host. > In conjunction with this source tree move, I'd also like to start the > move the mailing list. We have ongoing spam, performance and user > access issues with oss.sgi.com, so IMO if we are moving source trees > off this host we should also move the mailing list to kernel.org > infrastructure. > I hope that doesn't mean we lose our megatron subscription. ;) Brian > To that end, there is a linux-xfs@vger.kernel.org > list already - it was created at the same time that the above > kernel.org repositories were created, but we've never used it. It > is archived here: > > http://www.spinics.net/lists/linux-xfs/ > > Moving the mailing list is going to be something that affects more > than just the developers - we've got lots of documentation that > points at this list and there are lots of users that are subscribed, > read it though nntp gateways, have aliases for it, etc so we need > a good transition plan here. > > I'm not sure what the best approach - perhaps just > forwarding all email from xfs@oss.sgi.com to > linux-xfs@vger.kernel.org will solve most transitional problems > for users that aren't aware of the change or are following old > documentation or "please report bug" messages from xfs_repair. > But it means that everyone needs to subscribe to the new list > and probably unsubscribe from the old list. I dont see how we can > avoid that in the long term, but I'd like to minimise the pain > as much as possible for everyone. > > Again, I'm open to suggestions on how to approach this and maintain > the oss list aliases for long enough that people and search engines > learn about the new list. > > I would like to make this as painless as possible for everyone. This > isn't the only solution to the problems we have with oss.sgi.com, > but it's the path of least effort/greatest gain for me. If anyone > has any ideas on alternative solutions, reservations about moving to > kernel.org infrastructure and/or suggestions to make it less painful > for everyone, please speak up now. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Aug 7 07:56:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7E9A97F87 for ; Thu, 7 Aug 2014 07:56:31 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1AEACAC002 for ; Thu, 7 Aug 2014 05:56:28 -0700 (PDT) X-ASG-Debug-ID: 1407416186-04cbb00fa13f880001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id G9bTQMHI6jFexpI0 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 07 Aug 2014 05:56:27 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s77CuOqL021653 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 7 Aug 2014 08:56:25 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s77CuOSv015784; Thu, 7 Aug 2014 08:56:24 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id B8A7612577C; Thu, 7 Aug 2014 08:56:23 -0400 (EDT) Date: Thu, 7 Aug 2014 08:56:23 -0400 From: Brian Foster To: Felipe Monteiro de Carvalho Cc: xfs@oss.sgi.com Subject: Re: xfs_bmbt_rec_64 leading to wrong blocks Message-ID: <20140807125623.GB53888@bfoster.bfoster> X-ASG-Orig-Subj: Re: xfs_bmbt_rec_64 leading to wrong blocks References: <20140806113447.GA14820@bfoster.bfoster> <20140806142329.GA39990@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407416186 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 07, 2014 at 01:51:01PM +0200, Felipe Monteiro de Carvalho wrote: > Hello, > > Thanks, that worked perfectly =) > > My actual idea is to not only read the partition, but to also recover > deleted/corrupted files. With the information that you provided I > advanced a lot in this direction, and I can now recover the file > information in that memory area completely. I can also obtain the > inode nr (well 4 bytes of it are preserved, but its better then > nothing), but my current problem is with the inode itself. In a > deleted file the following changes are done by the linux driver in the > inode: > > xfs_dinode_core_t.di_mode was changed to zero > xfs_dinode_core_t.di_format was changed from 1 (local) to 2 (extent) > These are set in xfs_ifree() when the inode is pulled from the unlinked list and ultimately freed. Resetting these values certainly makes sense, but I'm not aware of the reason why di_format is set as such. > But di_mode in particular is a key element as I am using it to > differentiate files from directories. > In general you can't rely on on-disk data once the inode has been freed. Perhaps you should start a new thread with some kind of write up about what you're trying to accomplish and how you're going about it. Brian > Is there anything else what I can use to differentiate files from > directories in case di_mode was corrupted? I am searching here but so > far I didn't find anything... > > thanks, > -- > Felipe Monteiro de Carvalho > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From felipemonteiro.carvalho@gmail.com Thu Aug 7 08:42:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 35D8E7F82 for ; Thu, 7 Aug 2014 08:42:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 07FEB8F8064 for ; Thu, 7 Aug 2014 06:41:59 -0700 (PDT) X-ASG-Debug-ID: 1407418917-04bdf0346743c40001-NocioJ Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com [209.85.220.44]) by cuda.sgi.com with ESMTP id 6E4TuXNvlclx9vap (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 07 Aug 2014 06:41:57 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.44 Received: by mail-pa0-f44.google.com with SMTP id eu11so5484367pac.3 for ; Thu, 07 Aug 2014 06:41:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=JSe1XwPUNRCHSPCx+kCY2pR5A4ZxAHxwgrkip9FwzkA=; b=Py3UBJDi/EYLfGzaofsgsYV+4p3JUnhX3HpVUYBy+iZP/4MJ3lC8sBwyQdezfxMjkZ wtezzkazCVTAMKgclYJFfD1g5SPUYOp4uKArd9MGR+nyPQRjUNOLpp2l75ZtU4tKba8p 07A53H+3dqR9mQQ75zzy9Rln6G4eUmZQJqzcGoiPNe5drqRvy/gaJZ9LJ5221SmEGg+6 PNcNIifitPRamUY2US8rsTRU3OmhZnx4b6aWJPtDuQcb+o/WqcCMv+RUb0TsPUtKpM5D 7CNynwu7Pf82md8kJEH3zXhQVFukbHiBokGNIgwsyzlHdDKVSUIyhwN1P9QIo7Ruilki 8QpA== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.66.158.130 with SMTP id wu2mr17739156pab.59.1407418917073; Thu, 07 Aug 2014 06:41:57 -0700 (PDT) Received: by 10.66.50.9 with HTTP; Thu, 7 Aug 2014 06:41:57 -0700 (PDT) Date: Thu, 7 Aug 2014 15:41:57 +0200 Message-ID: Subject: Recovery of deleted files/directories From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Recovery of deleted files/directories To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pa0-f44.google.com[209.85.220.44] X-Barracuda-Start-Time: 1407418917 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8216 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Aug 7, 2014 at 2:56 PM, Brian Foster wrote: >> But di_mode in particular is a key element as I am using it to >> differentiate files from directories. > In general you can't rely on on-disk data once the inode has been freed. > Perhaps you should start a new thread with some kind of write up about > what you're trying to accomplish and how you're going about it. Yes, I know it is unreliable, and that's OK for me. I'm satisfied in having a best effort solution which works often, it does not have to be fully reliable. What I am trying to accomplish is quite simple: Recover as many deleted files in a XFS partition as possible. For example if someone deletes a file by mistake, how to get it back? And the current place where I got stuck is exactly the post-xfs_ifree inode, specifically deciding if the inode is a directory or a file. In my hex editor I see that all the information is still there, it would be a petty to give up when so little is missing. That di_format is overwritten is a big problem too, but I think I can work around it by trying each format and choose the best result from all tries. Also, I just noticed that di_size is also overwritten ... which will be very bad for file recovery. But knowing if the inode is a file or a directory is the most pressing issue. For a better illustration, here is the data I see for a directory (xfs_del is the deleted, xfs_orig is before delete): http://magnifier.sourceforge.net/temp/xfs/xfs_deleted_inode_dir.png And the same for a file: http://magnifier.sourceforge.net/temp/xfs/xfs_deleted_inode_file.png Well, it might be that what I want to do is impossible, but I just I might ask in case anyone knows any other way to differentiate a file from a directory, if at least this information is present I could somehow work around the other issues. thanks, -- Felipe Monteiro de Carvalho From sandeen@sandeen.net Thu Aug 7 09:45:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 978057F6C for ; Thu, 7 Aug 2014 09:45:44 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8684A8F8040 for ; Thu, 7 Aug 2014 07:45:41 -0700 (PDT) X-ASG-Debug-ID: 1407422739-04cbb00fa146f40001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 2L2lFwDxSEGifOpZ for ; Thu, 07 Aug 2014 07:45:39 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 8641D63BE4E6; Thu, 7 Aug 2014 09:45:39 -0500 (CDT) Message-ID: <53E39117.4090200@sandeen.net> Date: Thu, 07 Aug 2014 09:45:43 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Felipe Monteiro de Carvalho , xfs@oss.sgi.com Subject: Re: Recovery of deleted files/directories References: X-ASG-Orig-Subj: Re: Recovery of deleted files/directories In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407422739 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8217 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/7/14, 8:41 AM, Felipe Monteiro de Carvalho wrote: > On Thu, Aug 7, 2014 at 2:56 PM, Brian Foster wrote: >>> But di_mode in particular is a key element as I am using it to >>> differentiate files from directories. >> In general you can't rely on on-disk data once the inode has been freed. >> Perhaps you should start a new thread with some kind of write up about >> what you're trying to accomplish and how you're going about it. > > Yes, I know it is unreliable, and that's OK for me. I'm satisfied in > having a best effort solution which works often, it does not have to > be fully reliable. > > What I am trying to accomplish is quite simple: Recover as many > deleted files in a XFS partition as possible. For example if someone > deletes a file by mistake, how to get it back? Do you have a link to the project you're working on? Is it an open source tool? There's another tool out there already called "xfs_irecover" which looks for any inode anywhere on disk, and tries to copy back out any data that it points to, deleted or not. It could use some love. Thanks, -Eric From bfoster@redhat.com Thu Aug 7 10:18:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 662DF7F7D for ; Thu, 7 Aug 2014 10:18:56 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 45CAC8F8073 for ; Thu, 7 Aug 2014 08:18:53 -0700 (PDT) X-ASG-Debug-ID: 1407424731-04cb6c3f6f40470001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id lMynd7d9NTwNVvif (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 07 Aug 2014 08:18:52 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s77FInk0007988 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 7 Aug 2014 11:18:49 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s77FImtb012677; Thu, 7 Aug 2014 11:18:49 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D571912577C; Thu, 7 Aug 2014 11:18:47 -0400 (EDT) Date: Thu, 7 Aug 2014 11:18:47 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 04/18] xfs: introduce inode record hole mask for sparse inode chunks Message-ID: <20140807151847.GC53888@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 04/18] xfs: introduce inode record hole mask for sparse inode chunks References: <1406211788-63206-1-git-send-email-bfoster@redhat.com> <1406211788-63206-5-git-send-email-bfoster@redhat.com> <20140724221453.GP20518@dastard> <20140728161632.GC59542@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140728161632.GC59542@bfoster.bfoster> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407424732 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Jul 28, 2014 at 12:16:33PM -0400, Brian Foster wrote: > On Fri, Jul 25, 2014 at 08:14:53AM +1000, Dave Chinner wrote: > > On Thu, Jul 24, 2014 at 10:22:54AM -0400, Brian Foster wrote: > > > The inode btrees track 64 inodes per record, regardless of inode size. > > > Thus, inode chunks on disk vary in size depending on the size of the > > > inodes. This creates a contiguous allocation requirement for new inode > > > chunks that can be difficult to satisfy on an aged and fragmented (free > > > space) filesystem. > > > > > > The inode record freecount currently uses 4 bytes on disk to track the > > > free inode count. With a maximum freecount value of 64, only one byte is > > > required. Convert the freecount field to a single byte and reserve two > > > of the remaining 3 higher order bytes left to the hole mask field. > > > > > > The hole mask field tracks potential holes in the chunks of physical > > > space that the inode record refers to. This facilitates the sparse > > > allocation of inode chunks when contiguous chunks are not available and > > > allows the inode btrees to identify what portions of the chunk contain > > > valid inodes. > > > > > > Tracking holes means the field is initialized to zero and thus maintains > > > backwards compatibility with existing filesystems. E.g., the higher > > > order bytes of a counter with a max value of 64 are already initialized > > > to 0. Update the inode record management functions to handle the new > > > field and initialize it to zero for now. > > > > > > Signed-off-by: Brian Foster > > > --- > > > fs/xfs/libxfs/xfs_format.h | 7 +++++-- > > > fs/xfs/libxfs/xfs_ialloc.c | 9 +++++++-- > > > fs/xfs/libxfs/xfs_ialloc_btree.c | 4 +++- > > > 3 files changed, 15 insertions(+), 5 deletions(-) > > > > > > diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h > > > index 34d85ac..39022d9 100644 > > > --- a/fs/xfs/libxfs/xfs_format.h > > > +++ b/fs/xfs/libxfs/xfs_format.h > > > @@ -221,13 +221,16 @@ static inline xfs_inofree_t xfs_inobt_maskn(int i, int n) > > > */ > > > typedef struct xfs_inobt_rec { > > > __be32 ir_startino; /* starting inode number */ > > > - __be32 ir_freecount; /* count of free inodes (set bits) */ > > > + __be16 ir_holemask; /* hole mask for sparse chunks */ > > > + __u8 ir_pad; > > > + __u8 ir_freecount; /* count of free inodes (set bits) */ > > > __be64 ir_free; /* free inode mask */ > > > } xfs_inobt_rec_t; > > > > might we want the number of inodes allocated in the chunk there as > > well (i.e. in the pad field) so we can validate the holemask against > > the number of inodes allocated in the chunk? > > > > So you're suggesting something like this? > > - __be32 ir_freecount; /* count of free inodes (set bits) */ > + __be16 ir_holemask; /* hole mask for sparse chunks */ > + __u8 ir_count; /* total inode count */ > + __u8 ir_freecount; /* count of free inodes (set bits) */ > > That's an interesting thought. It might make some of the code more clear > and eliminate the need for the derivation of that value from the > holemask (beyond for validation purposes). I do like the extra > validation and potential debug use given the holemask is not quite as > human friendly as the free mask in terms of having a bit per inode. > > As long as there isn't any concern over reserving this space for > something else down the road (I suspect not, since the pad is introduced > by this feature), I'll look to use it as an inode count. > The ir_count field along with changing the way we handle the feature bit to be fixed rather than dynamic introduces an interesting design point with regard to backwards compatibility. The feature bit is now fixed at mkfs time and we have an assumption that it could be removed via some userspace mechanism (e.g., repair, xfs_admin, etc.). To do that safely, the mechanism requires some kind of verification that sparse inode chunks do not exist, either as part of the repair tracking or some kind of new counter somewhere that xfs_admin could refer to. The ir_count field helps with verification of the holemask and simplifies calculation of a "real" inode count for such records (e.g., for bulkstat). We could set ir_count only for inode records that are sparse, but that seems slightly unfortunate if we expect this record format to eventually be default. Alternatively (and what I have in my tree at the moment), we can use ir_count unconditionally so long as the feature bit is set. That obviously breaks the backwards compatibility of the record format since this is a higher order byte of ir_freecount on older kernels. So if the feature bit is mkfs time and there is no intent to enable it thereafter, it seems there isn't much benefit to record backwards compatibility. If we go that route, perhaps it's better to have an ir_alloc field or some such instead of ir_holemask, invert the bits and eliminate that bit of complexity. On the flipside, limiting usage of ir_count and retaining ir_holemask in its current form leaves open the possibility for enabling sparse inode chunks without a reformat (given certain requirements, e.g., a v5 superblock). Thoughts? Brian > Brian > > > -Dave. > > -- > > Dave Chinner > > david@fromorbit.com > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Thu Aug 7 15:14:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C14687F82 for ; Thu, 7 Aug 2014 15:14:45 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 50900AC010 for ; Thu, 7 Aug 2014 13:14:41 -0700 (PDT) X-ASG-Debug-ID: 1407442476-04cb6c3f6e4d280001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id MvgSBxDYFusQaGwJ for ; Thu, 07 Aug 2014 13:14:36 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 705DB6370CE0; Thu, 7 Aug 2014 15:14:36 -0500 (CDT) Message-ID: <53E3DE2B.6080205@sandeen.net> Date: Thu, 07 Aug 2014 15:14:35 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner , xfs@oss.sgi.com CC: fstests@vger.kernel.org Subject: Re: [DISCUSS] Moving from oss.sgi.com to kernel.org References: <20140807000922.GA26465@dastard> X-ASG-Orig-Subj: Re: [DISCUSS] Moving from oss.sgi.com to kernel.org In-Reply-To: <20140807000922.GA26465@dastard> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407442476 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8224 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 8/6/14, 7:09 PM, Dave Chinner wrote: > Hi folks, > It should be no surprise that since this conversation I've been > looking at what is involved in moving everything XFS off oss.sgi.com > to kernel.org. Right now I have the main XFS repositories up to > date on kernel.org. For userspace I've simply pushed the current > trees and tags to the pre-existing repositories here: > > git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git > git://git.kernel.org/pub/scm/fs/xfs/xfsdump-dev.git > git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git > > These trees currently have the same content as the trees on > oss.sgi.com. I may rename these as a result of discussions here > (e.g. some people don't like the -dev suffix on the trees) so it's > best for people to continue to use the trees on oss.sgi.com until > this disucssion comes to a conclusion. I agree with the move to kernel.org; they have paid staff with time and resources to look after this stuff; it's a resource we should use, and it'll save us all time and/or money. But I'm one of the "some people" who don't want to re-use the -dev trees; let's just get properly named repos up there. These served a different purpose, long ago. If you want to rename to fstests, that's ok with me, but that's potentially a different scope; depending on how much content in the tree needs to be updated etc, I could see doing that a bit later if needed. If/when you get the names truly settled, let me know and I'll help with updating the wiki etc if you like. As for the old tarballs - they do claim to be signed, right? So if we can verify their identity, I see no harm in keeping them around. As for mailing lists, is it possible to forward for a while, and also send a reply back about the address change? That might be most foolproof, then eventually stop the forwarding and just add a reply about the list move, and leave that there until oss crumbles into dust. ;) Thanks, and "May the source be with you" ;) - -Eric -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIbBAEBAgAGBQJT494qAAoJECCuFpLhPd7gJm4P93Eas7qaiftU6WF4qKkvkKpD 0MzWk/b17wBR2cHqG9eLnw6Y4AuXCuYb3DTa77B1+8G+v7RBL1NWzbHAJBfc8KUe mfVNbNfGfTBdgUC7FAyvYZtPlHotcG5ghv8pkdIZNT1aazgZ0Eztjkbfz1NnF5Ia RwlqGdCyRNB3NsKn+rWypIPaIfUXcCwiSp94YfTiIPvuYIwRnBY4MjKzQa1i+eBl qNjziJDxNLuHdsnCRClxiDubnLbxlBoQiu4hHNblA+ogC+xvdjAknqbmq2oF825R 9P1BM8gwYJIqvZtoDT1P1NFSPt4NpSYL41Eakn5d8KoprbB3FWwsnYV/biX6UyMX 692Vw5GTtKD6wLeu7Ovi4C8JA+zCFHuMbd8wdmji1IwylRrTvGyGFOdel+caD9ua sWoTgJfA8ZZBFgbzmEb6jRJe8x8zx5jobaS1w1KxR2gHXL39/8WOGQ7/TukQnzeE omZ2QFqfJTaCbPlns01qrNOvZJHgX7XUPFZ1BxL7kSfptDfCMYnGiACxjhYiWrFf H/wPEq4F4itgn2L+eyIpiSlLfLZffsqUFAUKot/raV9+SwjXHfp3zFlbw5Mbw/Co H6krvTY0ZN4OzgyrT/16BsC8JUjKMSsN05oTDHfB0ldl2gaFGOuDYv20yzHAKN5m WJLBciq+9DFYsBiOnIw= =nbLn -----END PGP SIGNATURE----- From gregkh@linuxfoundation.org Thu Aug 7 16:10:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 403047F5D for ; Thu, 7 Aug 2014 16:10:59 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 111DF304043 for ; Thu, 7 Aug 2014 14:10:55 -0700 (PDT) X-ASG-Debug-ID: 1407445853-04bdf034665c930001-NocioJ Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) by cuda.sgi.com with ESMTP id ASddJZBshTtTlHXl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 07 Aug 2014 14:10:54 -0700 (PDT) X-Barracuda-Envelope-From: gregkh@linuxfoundation.org X-Barracuda-Apparent-Source-IP: 140.211.169.12 Received: from localhost (c-24-22-230-10.hsd1.wa.comcast.net [24.22.230.10]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 22918A58; Thu, 7 Aug 2014 21:10:53 +0000 (UTC) Date: Thu, 7 Aug 2014 14:10:52 -0700 From: Greg KH To: Bill Cc: Dave Chinner , xfs@oss.sgi.com Subject: Re: xfs hang in 3.14.15 Message-ID: <20140807211052.GD17105@kroah.com> X-ASG-Orig-Subj: Re: xfs hang in 3.14.15 References: <53E02495.4080208@sbcglobal.net> <20140805011800.GC20518@dastard> <53E372AA.4030304@sbcglobal.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E372AA.4030304@sbcglobal.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Barracuda-Connect: mail.linuxfoundation.org[140.211.169.12] X-Barracuda-Start-Time: 1407445854 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8225 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 07, 2014 at 07:35:54AM -0500, Bill wrote: > On 08/04/2014 08:18 PM, Dave Chinner wrote: > >On Mon, Aug 04, 2014 at 07:25:57PM -0500, Bill wrote: > >>Hi, > >> > >>I've been running a stress test on 3.14.15 and eventually my xfs > >>filesystem hangs. Both 3.10.50 and 3.16 seem to work ok. > >log space hang. > > > >110dc24 xfs: log vector rounding leaks log space > > > >Cheers, > > > >Dave. > > Thanks Dave, that helped. > > Greg, Please consider this for inclusion in 3.14.y. It fixed an xfs hang I > had on 3.14.15 Dave, any objection for me to include it? thanks, greg k-h From namjae.jeon@samsung.com Fri Aug 8 00:05:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 91E987F89 for ; Fri, 8 Aug 2014 00:05:33 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2E279AC002 for ; Thu, 7 Aug 2014 22:05:29 -0700 (PDT) X-ASG-Debug-ID: 1407474324-04bdf0346670020001-NocioJ Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) by cuda.sgi.com with ESMTP id o084mY9g3ITH3buN (version=TLSv1 cipher=RC4-MD5 bits=128 verify=NO) for ; Thu, 07 Aug 2014 22:05:25 -0700 (PDT) X-Barracuda-Envelope-From: namjae.jeon@samsung.com X-Barracuda-Apparent-Source-IP: 203.254.224.24 X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] Received: from epcpsbgr5.samsung.com (u145.gpu120.samsung.co.kr [203.254.230.145]) by mailout1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N9Z001N724ZHH90@mailout1.samsung.com> for xfs@oss.sgi.com; Fri, 08 Aug 2014 14:05:23 +0900 (KST) X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] Received: from epcpsbgm2.samsung.com ( [172.20.52.114]) by epcpsbgr5.samsung.com (EPCPMTA) with SMTP id EA.F6.15745.39A54E35; Fri, 08 Aug 2014 14:05:23 +0900 (KST) X-AuditID: cbfee691-b7f306d000003d81-93-53e45a93d8aa Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 49.C7.05196.39A54E35; Fri, 08 Aug 2014 14:05:23 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z00MCO24ZZ3A0@mmp1.samsung.com>; Fri, 08 Aug 2014 14:05:23 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 0/10] fs: Introduce FALLOC_FL_INSERT_RANGE for fallocate Date: Fri, 08 Aug 2014 14:05:23 +0900 X-ASG-Orig-Subj: [PATCH v5 0/10] fs: Introduce FALLOC_FL_INSERT_RANGE for fallocate Message-id: <004101cfb2c6$5c0194f0$1404bed0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yvdpLZZhppUsVRoavl1NNMg7M+A== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFIsWRmVeSWpSXmKPExsWyRsSkSHdy1JNgg4WdGhbvPldZbDl2j9Fi 2YPNLBYz591hs9iz9ySLxeVdc9gsWnt+slss6rvF6MDhcWqRhEfTmaPMHqsvbGX0eL/vKpvH 501yAaxRXDYpqTmZZalF+nYJXBnHG66zFdzhq7j65wFzA+M37i5GTg4JAROJ2c0rmSFsMYkL 99azdTFycQgJLGWU2DvtOCNM0eP7x6ESixgl2j+dYQFJCAn8ZZSY8FKoi5GDg01AW+LPFlGQ sIiAq8S8u9/BepkF7jBK/FpjDGILC3hLrNz7hxXEZhFQldi9cRLYGF4BS4n3l7pZIWxBiR+T 77GAjGQW0JH4OikCYoy8xOY1b6HuVJDYcfY1I8QqPYlJN45DrRKR2PfiHSPImRICl9glHi38 wAyxS0Di2+RDYDMlBGQlNh2AmiMpcXDFDZYJjGKzkGyehbB5FpLNs5BsWMDIsopRNLUguaA4 Kb3IVK84Mbe4NC9dLzk/dxMjMB5P/3s2cQfj/QPWhxiTgbZPZJYSTc4HxnNeSbyhsZmRhamJ qbGRuaUZacJK4rzpj5KChATSE0tSs1NTC1KL4otKc1KLDzEycXBKNTAyTThwanmcw8+AJvd3 kwLEWWrY456/O75/3dbDrNt/zdnEJ8d46o9MzLmY+zGRR3Y16iybfEzHp1pqV1w1e9I1hl3d QRbHEu5WBvvek+qYE3Mv5C1P5sWd/sITVsVue736+JrZft8uhdZdPWLze3WDzLNLW0O3SSk0 RDbwec3pubqez3Sx4fzbSizFGYmGWsxFxYkAcki6tN0CAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrJIsWRmVeSWpSXmKPExsVy+t9jAd3JUU+CDfZ3KFi8+1xlseXYPUaL ZQ82s1jMnHeHzWLP3pMsFpd3zWGzaO35yW6xqO8WowOHx6lFEh5NZ44ye6y+sJXR4/2+q2we nzfJBbBGNTDaZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoqufgE6Lpl 5gCdoqRQlphTChQKSCwuVtK3wzQhNMRN1wKmMULXNyQIrsfIAA0krGHMON5wna3gDl/F1T8P mBsYv3F3MXJySAiYSDy+f5wNwhaTuHBvPZDNxSEksIhRov3TGRaQhJDAX0aJCS+Fuhg5ONgE tCX+bBEFCYsIuErMu/udEcRmFrjDKPFrjTGILSzgLbFy7x9WEJtFQFVi98ZJYGN4BSwl3l/q ZoWwBSV+TL7HAjKSWUBH4uukCIgx8hKb17xlhjhHQWLH2deMEKv0JCbdOA61SkRi34t3jBMY BWYhmTQLYdIsJJNmIelYwMiyilE0tSC5oDgpPddIrzgxt7g0L10vOT93EyM42p9J72Bc1WBx iFGAg1GJh1eg+3GwEGtiWXFl7iFGCQ5mJRHems9AId6UxMqq1KL8+KLSnNTiQ4ymQH9OZJYS Tc4HJqK8knhDYxMzI0sjc0MLI2NzJXHeg63WgUIC6YklqdmpqQWpRTB9TBycUg2MU1vqebnM 382csyAzL9Vb6/jUFRdeKAVxzfVxCvrkOc/0a//+Dccn8yrNDT269mDsGfZoJdkz9r8mRRwx /PpX9c7TjAUzb5kf36XqpiPGfPXq+zX/ZFz0yz5xer15dzTOukDmcA73BoOvrB+Np948Yt2s /Svid0y6yVELcZ4v32UN2/Jfah6UU2Ipzkg01GIuKk4EAHwNum8MAwAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout1.samsung.com[203.254.224.24] X-Barracuda-Start-Time: 1407474325 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 In continuation of the work of making the process of non linear editing of media files faster, we introduce here the new flag FALLOC_FL_INSERT_RANGE for fallocate. This flag will work opposite to the FALLOC_FL_COLLAPSE_RANGE flag. As such, specifying FALLOC_FL_INSERT_RANGE flag will create new space inside file by inserting a hole within the range specified by offset and len. User can write new data in this space. e.g. ads. Like collapse range, currently we have the limitation that offset and len should be block size aligned for both XFS and Ext4. The semantics of the flag are : 1) It creates space within file by inserting a hole of len bytes starting at offset byte without overwriting any existing data. All the data blocks from offset to EOF are shifted towards right to make hole space. 2) It should be used exclusively. No other fallocate flag in combination. 3) Offset and length supplied to fallocate should be fs block size aligned in case of xfs and ext4. 4) Insert range does not work for the case when offset is overlapping/beyond i_size. If the user wants to insert space at the end of file they are advised to use either ftruncate(2) or fallocate(2) with mode 0. 5) It increses the size of file by len bytes. Namjae Jeon (10): fs: Add support FALLOC_FL_INSERT_RANGE for fallocate xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate xfsprogs: xfs_io: add finsert command for insert range via fallocate xfstests: generic/029: Standard insert range tests xfstests: generic/030: Delayed allocation insert range xfstests: generic/031: Multi insert range tests xfstests: generic/032: Delayed allocation multi insert xfstests: fsstress: Add fallocate insert range operation xfstests: fsx: Add fallocate insert range operation -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:05:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F0DC77F96 for ; 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Fri, 08 Aug 2014 14:05:32 +0900 (KST) X-AuditID: cbfee690-b7f526d000003627-57-53e45a9c38fb Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id DF.C7.05196.C9A54E35; Fri, 08 Aug 2014 14:05:32 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z003HV2588HB0@mmp2.samsung.com>; Fri, 08 Aug 2014 14:05:32 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 1/10] fs: Add support FALLOC_FL_INSERT_RANGE for fallocate Date: Fri, 08 Aug 2014 14:05:32 +0900 X-ASG-Orig-Subj: [PATCH v5 1/10] fs: Add support FALLOC_FL_INSERT_RANGE for fallocate Message-id: <004201cfb2c6$61514ae0$23f3e0a0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yvfwyPw+5qhA+QPi4KCaFScV1QQ== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFIsWRmVeSWpSXmKPExsWyRsSkRHdO1JNggy+tShbvPldZbDl2j9Fi 2YPNLBYz591hs9iz9ySLxeVdc9gsWnt+slss6rvF6MDhcWqRhEfTmaPMHqsvbGX0eL/vKpvH 501yAaxRXDYpqTmZZalF+nYJXBkf105mLLgqWrGm5ThjA+MBwS5GDg4JAROJX8/tuhg5gUwx iQv31rN1MXJxCAksZZQ4tHYZE0TCROL1mR52iMR0RonTNyYyQjh/GSUu3rnIBDKJTUBb4s8W UZAGEQFXiXl3vzOC2MwCdxglfq0xBrGFBXwlbm7aCDaURUBVYvf2k2A2r4ClxIJ5P6BsQYkf k++xgIxkFtCR+DopAmKMvMTmNW+ZIe5RkNhx9jUjxCo9ictbnrJA1IhI7HvxDuw0CYFL7BKH /0xkhtglIPFt8iEWiIdlJTYdgJojKXFwxQ2WCYxis5BsnoWweRaSzbOQbFjAyLKKUTS1ILmg OCm9yESvODG3uDQvXS85P3cTIzAeT/97NmEH470D1ocYk4G2T2SWEk3OB8ZzXkm8obGZkYWp iamxkbmlGWnCSuK8ao+SgoQE0hNLUrNTUwtSi+KLSnNSiw8xMnFwSjUwcr+OaV+8cMq/jbcC p72wVtTPvTJb7NMtl8S38d6WWeFvbGRXxStM5t7NcnDDNOGv6cnT/VPVzxTv7d36TatpdbPM 1+lVXh83HnstYpbvNEnwRtS2Q+XTvR7/a7irK1is1fZ0956ZXOFTj3Zml38q/DB71/+TOWu+ 3Yle2O7y6Uv+7gm+Xlv2zFViKc5INNRiLipOBACmz6Xz3QIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFIsWRmVeSWpSXmKPExsVy+t9jQd05UU+CDW4ukLJ497nKYsuxe4wW yx5sZrGYOe8Om8WevSdZLC7vmsNm0drzk91iUd8tRgcOj1OLJDyazhxl9lh9YSujx/t9V9k8 Pm+SC2CNamC0yUhNTEktUkjNS85PycxLt1XyDo53jjc1MzDUNbS0MFdSyEvMTbVVcvEJ0HXL zAE6RUmhLDGnFCgUkFhcrKRvh2lCaIibrgVMY4Sub0gQXI+RARpIWMOY8XHtZMaCq6IVa1qO MzYwHhDsYuTkkBAwkXh9pocdwhaTuHBvPVsXIxeHkMB0RonTNyYyQjh/GSUu3rnI1MXIwcEm oC3xZ4soSIOIgKvEvLvfGUFsZoE7jBK/1hiD2MICvhI3N21kArFZBFQldm8/CWbzClhKLJj3 A8oWlPgx+R4LyEhmAR2Jr5MiIMbIS2xe85YZ4h4FiR1nXzNCrNKTuLzlKQtEjYjEvhfvGCcw CsxCMmkWwqRZSCbNQtKxgJFlFaNoakFyQXFSeq6RXnFibnFpXrpecn7uJkZwvD+T3sG4qsHi EKMAB6MSD69A9+NgIdbEsuLK3EOMEhzMSiK8NZ+BQrwpiZVVqUX58UWlOanFhxhNgf6cyCwl mpwPTEV5JfGGxiZmRpZG5oYWRsbmSuK8B1utA4UE0hNLUrNTUwtSi2D6mDg4pRoYZ3m63He7 EtfWzm5zc/t9uTqGvKszdHu+MRh41lWddjopz6I8lyFyiU3KB/dpa2/2vz4avntu6idX/3y7 ZAWBGMtfjAvMZ9aGV388dT27eq8cg9hfrcPBRZGNTuEFM+1/aVRurtSbU3SmcdWxRYLKjUvs J7x6sFTz7seVm4+uNclyPbNiAfNjJZbijERDLeai4kQAXhQ+Rw0DAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout1.samsung.com[203.254.224.24] X-Barracuda-Start-Time: 1407474335 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 FALLOC_FL_INSERT_RANGE command is the opposite command of FALLOC_FL_COLLAPSE_RANGE that is needed for advertisers or someone who want to add some data in the middle of file. FALLOC_FL_INSERT_RANGE will create space for writing new data within a file after shifting extents to right as given length. and this command also has same limitation as FALLOC_FL_COLLAPSE_RANGE, that is block boundary and use ftruncate(2) for crosses EOF. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- fs/open.c | 8 +++++++- include/uapi/linux/falloc.h | 15 +++++++++++++++ 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/fs/open.c b/fs/open.c index 36662d0..74ed498 100644 --- a/fs/open.c +++ b/fs/open.c @@ -232,7 +232,8 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len) /* Return error if mode is not supported */ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | - FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE)) + FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | + FALLOC_FL_INSERT_RANGE)) return -EOPNOTSUPP; /* Punch hole and zero range are mutually exclusive */ @@ -250,6 +251,11 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len) (mode & ~FALLOC_FL_COLLAPSE_RANGE)) return -EINVAL; + /* Insert range should only be used exclusively. */ + if ((mode & FALLOC_FL_INSERT_RANGE) && + (mode & ~FALLOC_FL_INSERT_RANGE)) + return -EINVAL; + if (!(file->f_mode & FMODE_WRITE)) return -EBADF; diff --git a/include/uapi/linux/falloc.h b/include/uapi/linux/falloc.h index d1197ae..1f20723 100644 --- a/include/uapi/linux/falloc.h +++ b/include/uapi/linux/falloc.h @@ -41,4 +41,19 @@ */ #define FALLOC_FL_ZERO_RANGE 0x10 +/* + * FALLOC_FL_INSERT_RANGE is use to insert space within the file size without + * overwriting any existing data. The contents of the file beyond offset are + * shifted towards right by len bytes to create a hole. As such, this + * operation will increase the size of the file by len bytes. + * Different filesystems may implement different limitations on the granularity + * of the operation. Most will limit operations to filesystem block size + * boundaries, but this boundary may be larger or smaller depending on + * the filesystem and/or the configuration of the filesystem or file. + * Attempting to insert space using this flag at OR beyond the end of + * the file is considered an illegal operation - just use ftruncate(2) or + * fallocate(2) with mode 0 for such type of operations. + */ +#define FALLOC_FL_INSERT_RANGE 0x20 + #endif /* _UAPI_FALLOC_H_ */ -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:06:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2448F7FA1 for ; Fri, 8 Aug 2014 00:06:17 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 10028304053 for ; 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Fri, 08 Aug 2014 14:05:55 +0900 (KST) X-AuditID: cbfee690-b7f526d000003627-8a-53e45ab34ba5 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 4F.D7.05196.3BA54E35; Fri, 08 Aug 2014 14:05:55 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z00N3025V0JB0@mmp1.samsung.com>; Fri, 08 Aug 2014 14:05:55 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 2/10] xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate Date: Fri, 08 Aug 2014 14:05:55 +0900 X-ASG-Orig-Subj: [PATCH v5 2/10] xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate Message-id: <004301cfb2c6$6ef2d330$4cd87990$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yviK/lLAUeKvWTI+4bilqMLmeZA== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrLIsWRmVeSWpSXmKPExsWyRsSkRHdz1JNgg3MrdSzefa6y2HLsHqPF sgebWSxmzrvDZrFn70kWi8u75rBZtPb8ZLdY1HeL0YHD49QiCY+mM0eZPVZf2Mro8X7fVTaP z5vkAlijuGxSUnMyy1KL9O0SuDI+rl7JWrBgOWPFh/n/2RoYr7QwdjFyckgImEgsm7qEBcIW k7hwbz1bFyMXh5DAUkaJb7MPMMMUvdtziwkisYhR4tPet8wQzl9GiV+/XgM5HBxsAtoSf7aI gjSICLhKzLv7HWwDs8AdoJo1xiC2sICfxNG2N2BxFgFViZ8rzoEt4BWwlNg05TqULSjxY/I9 FpCRzAI6El8nRUCMkZfYvOYt1D0KEjvOvmaEWKUnsfP5IahVIhL7XrxjBDlNQuAcu8S0A3OZ IXYJSHybfAhspoSArMQmmL8kJQ6uuMEygVFsFpLNsxA2z0KyeRaSDQsYWVYxiqYWJBcUJ6UX megVJ+YWl+al6yXn525iBEbl6X/PJuxgvHfA+hBjMtD2icxSosn5wKjOK4k3NDYzsjA1MTU2 Mrc0I01YSZxX7VFSkJBAemJJanZqakFqUXxRaU5q8SFGJg5OqQZG32Irycbw2fIZ+w586X3d Emdh29TRY7LLhHMd+w62F19MDV7ImbmzsPztzuxpNYtVv7GK7dGNzC8/dnKIW5zVjX2clnkv I+DDYyV5O+utcgu0J/yS4fXvPmid6bf24PIbTWLlyameMlGtc3P3lN21ZlnDs2/VfGWvGydT HxxP0G0P2qjzlV2JpTgj0VCLuag4EQA4QiSC4AIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrDIsWRmVeSWpSXmKPExsVy+t9jAd3NUU+CDTpvK1i8+1xlseXYPUaL ZQ82s1jMnHeHzWLP3pMsFpd3zWGzaO35yW6xqO8WowOHx6lFEh5NZ44ye6y+sJXR4/2+q2we nzfJBbBGNTDaZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoqufgE6Lpl 5gCdoqRQlphTChQKSCwuVtK3wzQhNMRN1wKmMULXNyQIrsfIAA0krGHM+Lh6JWvBguWMFR/m /2drYLzSwtjFyMkhIWAi8W7PLSYIW0ziwr31bF2MXBxCAosYJT7tfcsM4fxllPj16zWQw8HB JqAt8WeLKEiDiICrxLy738EGMQvcAapZYwxiCwv4SRxtewMWZxFQlfi54hwziM0rYCmxacp1 KFtQ4sfkeywgI5kFdCS+ToqAGCMvsXnNW2aIexQkdpx9zQixSk9i5/NDUKtEJPa9eMc4gVFg FpJJsxAmzUIyaRaSjgWMLKsYRVMLkguKk9JzjfSKE3OLS/PS9ZLzczcxgmP+mfQOxlUNFocY BTgYlXh4BbofBwuxJpYVV+YeYpTgYFYS4a35DBTiTUmsrEotyo8vKs1JLT7EaAr050RmKdHk fGA6yiuJNzQ2MTOyNDI3tDAyNlcS5z3Yah0oJJCeWJKanZpakFoE08fEwSnVwNh8+cRFNu19 e6WtH7lu+/NtlUpUgW+0dfRGG6sYtQkOgl61hvnbMjSnrC/icPvVfTXyyXUHae8bO3W9e/aY ajzJP2XisIbxa8XFmFCXpMPzGStEGXTDVN6pa/Es1VVQWMJ3I1km8tZr6S7/uVwJuz0ntu2t 5U+bIsXxt+qX9wuFi29budiZlViKMxINtZiLihMBj8Wd0A8DAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout4.samsung.com[203.254.224.34] X-Barracuda-Start-Time: 1407474374 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This patch implements fallocate's FALLOC_FL_INSERT_RANGE for XFS. 1) Make sure that both offset and len are block size aligned. 2) Update the i_size of inode by len bytes. 3) Compute the file's logical block number against offset. If the computed block number is not the starting block of the extent, split the extent such that the block number is the starting block of the extent. 4) Shift all the extents which are lying bewteen [offset, last allocated extent] towards right by len bytes. This step will make a hole of len bytes at offset. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan Reviewed-by: Brian Foster --- Changelog v5: - remove allocation part. v4: - set cur->bc_private.b.allocated to zero before calling xfs_btree_del_cursor. v3: - remove XFS_TRANS_RESERVE and assert. - update the comment of blockcount calculation. - use 'if(blockcount)' instead of 'if (got.br_blockcount < blockcount)'. - move insert_file_space() calling under xfs_setattr_size to avoid code duplicate. v2: - remove reserved enable. - add xfs_qm_dqattach. - reset blockcount in xfs_bmap_shift_extents_right. - update i_size to avoid data loss before insert_file_space() is called. - use in-memory extent array size that delayed allocation extents fs/xfs/libxfs/xfs_bmap.c | 379 ++++++++++++++++++++++++++++++++++++++++++++++- fs/xfs/libxfs/xfs_bmap.h | 9 +- fs/xfs/xfs_bmap_util.c | 123 ++++++++++++++- fs/xfs/xfs_bmap_util.h | 2 + fs/xfs/xfs_file.c | 38 ++++- fs/xfs/xfs_trace.h | 1 + 6 files changed, 547 insertions(+), 5 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index de2d26d..62f5aa7 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5413,7 +5413,7 @@ error0: * into, this will be considered invalid operation and we abort immediately. */ int -xfs_bmap_shift_extents( +xfs_bmap_shift_extents_left( struct xfs_trans *tp, struct xfs_inode *ip, int *done, @@ -5443,7 +5443,7 @@ xfs_bmap_shift_extents( (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { - XFS_ERROR_REPORT("xfs_bmap_shift_extents", + XFS_ERROR_REPORT("xfs_bmap_shift_extents_left", XFS_ERRLEVEL_LOW, mp); return -EFSCORRUPTED; } @@ -5600,3 +5600,378 @@ del_cursor: xfs_trans_log_inode(tp, ip, logflags); return error; } + +/* + * Splits an extent into two extents at split_fsb block that it is + * the first block of the current_ext. @current_ext is a target extent + * to be splitted. @split_fsb is a block where the extents is spliited. + * If split_fsb lies in a hole or the first block of extents, just return 0. + */ +STATIC int +xfs_bmap_split_extent_at( + struct xfs_trans *tp, + struct xfs_inode *ip, + xfs_fileoff_t split_fsb, + xfs_extnum_t *current_ext, + xfs_fsblock_t *firstfsb, + struct xfs_bmap_free *free_list) +{ + int whichfork = XFS_DATA_FORK; + struct xfs_btree_cur *cur; + struct xfs_bmbt_rec_host *gotp; + struct xfs_bmbt_irec got; + struct xfs_bmbt_irec new; /* splitted extent */ + struct xfs_mount *mp = ip->i_mount; + struct xfs_ifork *ifp; + xfs_fsblock_t gotblkcnt; /* new block count for got */ + int error = 0; + int logflags; + int i = 0; + + if (unlikely(XFS_TEST_ERROR( + (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), + mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { + XFS_ERROR_REPORT("xfs_bmap_split_extent_at", + XFS_ERRLEVEL_LOW, mp); + return -EFSCORRUPTED; + } + + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + + ASSERT(current_ext != NULL); + + ifp = XFS_IFORK_PTR(ip, whichfork); + if (!(ifp->if_flags & XFS_IFEXTENTS)) { + /* Read in all the extents */ + error = xfs_iread_extents(tp, ip, whichfork); + if (error) + return error; + } + + gotp = xfs_iext_bno_to_ext(ifp, split_fsb, current_ext); + /* + * gotp can be null in 2 cases: 1) if there are no extents + * or 2) split_fsb lies in a hole beyond which there are + * no extents. Either way, we are done. + */ + if (!gotp) + return 0; + + xfs_bmbt_get_all(gotp, &got); + + /* + * Check split_fsb lies in a hole or the start boundary offset + * of the extent. + */ + if (got.br_startoff >= split_fsb) + return 0; + + gotblkcnt = split_fsb - got.br_startoff; + new.br_startoff = split_fsb; + new.br_startblock = got.br_startblock + gotblkcnt; + new.br_blockcount = got.br_blockcount - gotblkcnt; + new.br_state = got.br_state; + + /* We are going to change core inode */ + logflags = XFS_ILOG_CORE; + + if (ifp->if_flags & XFS_IFBROOT) { + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); + cur->bc_private.b.firstblock = *firstfsb; + cur->bc_private.b.flist = free_list; + cur->bc_private.b.flags = 0; + } else { + cur = NULL; + logflags |= XFS_ILOG_DEXT; + } + + if (cur) { + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, + got.br_startblock, + got.br_blockcount, + &i); + if (error) + goto del_cursor; + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } + + xfs_bmbt_set_blockcount(gotp, gotblkcnt); + got.br_blockcount = gotblkcnt; + if (cur) { + error = xfs_bmbt_update(cur, got.br_startoff, + got.br_startblock, + got.br_blockcount, + got.br_state); + if (error) + goto del_cursor; + } + + /* Add new extent */ + (*current_ext)++; + xfs_iext_insert(ip, *current_ext, 1, &new, 0); + XFS_IFORK_NEXT_SET(ip, whichfork, + XFS_IFORK_NEXTENTS(ip, whichfork) + 1); + + if (cur) { + error = xfs_bmbt_lookup_eq(cur, new.br_startoff, + new.br_startblock, new.br_blockcount, + &i); + if (error) + goto del_cursor; + XFS_WANT_CORRUPTED_GOTO(i == 0, del_cursor); + cur->bc_rec.b.br_state = new.br_state; + + error = xfs_btree_insert(cur, &i); + if (error) + goto del_cursor; + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } + + /* + * Convert to a btree if necessary. + */ + if (xfs_bmap_needs_btree(ip, whichfork)) { + int tmp_logflags; /* partial log flag return val */ + + ASSERT(cur == NULL); + error = xfs_bmap_extents_to_btree(tp, ip, firstfsb, free_list, + &cur, 0, &tmp_logflags, whichfork); + logflags |= tmp_logflags; + } + +del_cursor: + if (cur) { + cur->bc_private.b.allocated = 0; + xfs_btree_del_cursor(cur, + error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); + } + xfs_trans_log_inode(tp, ip, logflags); + return error; +} + +int +xfs_bmap_split_extent( + struct xfs_inode *ip, + xfs_fileoff_t split_fsb, + xfs_extnum_t *split_ext) +{ + struct xfs_mount *mp = ip->i_mount; + struct xfs_trans *tp; + struct xfs_bmap_free free_list; + xfs_fsblock_t firstfsb; + int committed; + int error; + + tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0); + + if (error) { + /* + * Free the transaction structure. + */ + xfs_trans_cancel(tp, 0); + return error; + } + + xfs_ilock(ip, XFS_ILOCK_EXCL); + error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot, + ip->i_gdquot, ip->i_pdquot, + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, + XFS_QMOPT_RES_REGBLKS); + if (error) + goto error1; + + xfs_trans_ijoin(tp, ip, 0); + xfs_bmap_init(&free_list, &firstfsb); + + error = xfs_bmap_split_extent_at(tp, ip, split_fsb, split_ext, + &firstfsb, &free_list); + if (error) + goto error0; + + error = xfs_bmap_finish(&tp, &free_list, &committed); + if (error) + goto error0; + + error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + + return error; +error0: + xfs_bmap_cancel(&free_list); +error1: + xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + return error; +} + +/* + * Shift extent records to the right to make a hole. + * The maximum number of extents to be shifted in a single operation + * is @num_exts, and @current_ext keeps track of the current extent + * index we have shifted. @offset_shift_fsb is the length by which each + * extent is shifted. @end_ext is the last extent to be shifted. + */ +int +xfs_bmap_shift_extents_right( + struct xfs_trans *tp, + struct xfs_inode *ip, + int *done, + xfs_fileoff_t offset_shift_fsb, + xfs_extnum_t *current_ext, + xfs_extnum_t end_ext, + xfs_fsblock_t *firstblock, + struct xfs_bmap_free *flist, + int num_exts) +{ + struct xfs_mount *mp = ip->i_mount; + struct xfs_btree_cur *cur; + struct xfs_bmbt_rec_host *gotp; + struct xfs_bmbt_irec got; + struct xfs_bmbt_irec right; + xfs_ifork_t *ifp; + xfs_fileoff_t startoff; + xfs_filblks_t blockcount = 0; + xfs_extnum_t last_extent; + int error = 0; + int i; + int whichfork = XFS_DATA_FORK; + int logflags; + + if (unlikely(XFS_TEST_ERROR( + (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), + mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { + XFS_ERROR_REPORT("xfs_bmap_shift_extents_right", + XFS_ERRLEVEL_LOW, mp); + return -EFSCORRUPTED; + } + + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + + ASSERT(current_ext != NULL); + + /* We are going to change core inode */ + logflags = XFS_ILOG_CORE; + ifp = XFS_IFORK_PTR(ip, whichfork); + + if (ifp->if_flags & XFS_IFBROOT) { + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); + cur->bc_private.b.firstblock = *firstblock; + cur->bc_private.b.flist = flist; + cur->bc_private.b.flags = 0; + } else { + cur = NULL; + logflags |= XFS_ILOG_DEXT; + } + + /* start shifting extents to right */ + while (num_exts-- > 0) { + blockcount = 0; + + if (*current_ext < end_ext) { + *done = 1; + break; + } + + gotp = xfs_iext_get_ext(ifp, *current_ext); + xfs_bmbt_get_all(gotp, &got); + startoff = got.br_startoff + offset_shift_fsb; + + /* + * Before shifting extent into hole, make sure that the hole + * is large enough to accomodate the shift. This checking has + * to be performed for all except the last extent. + */ + last_extent = (ifp->if_bytes / sizeof(xfs_bmbt_rec_t)) - 1; + if (last_extent != *current_ext) { + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, + *current_ext + 1), &right); + if (startoff + got.br_blockcount > right.br_startoff) { + error = -EINVAL; + if (error) + goto del_cursor; + } + } + + /* Check if we can merge 2 adjacent extents */ + if (last_extent != *current_ext && + right.br_startoff == startoff + got.br_blockcount && + right.br_startblock == + got.br_startblock + got.br_blockcount && + right.br_state == got.br_state && + right.br_blockcount + got.br_blockcount <= MAXEXTLEN) { + + /* + * Merge the current extent with the extent to + * the right. Remove the right extent, calculate + * a new block count for the current extent to cover + * the range of both and decrement the number of extents + * in the fork. + */ + blockcount = right.br_blockcount + got.br_blockcount; + + if (cur) { + error = xfs_bmbt_lookup_eq(cur, + right.br_startoff, + right.br_startblock, + right.br_blockcount, + &i); + if (error) + goto del_cursor; + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } + + xfs_iext_remove(ip, *current_ext + 1, 1, 0); + if (cur) { + error = xfs_btree_delete(cur, &i); + if (error) + goto del_cursor; + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } + XFS_IFORK_NEXT_SET(ip, whichfork, + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); + + } + + if (cur) { + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, + got.br_startblock, + got.br_blockcount, + &i); + if (error) + goto del_cursor; + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } + + if (blockcount) { + xfs_bmbt_set_blockcount(gotp, blockcount); + got.br_blockcount = blockcount; + } + + xfs_bmbt_set_startoff(gotp, startoff); + got.br_startoff = startoff; + + if (cur) { + error = xfs_bmbt_update(cur, got.br_startoff, + got.br_startblock, + got.br_blockcount, + got.br_state); + if (error) + goto del_cursor; + } + + (*current_ext)--; + } + +del_cursor: + if (cur) + xfs_btree_del_cursor(cur, + error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); + xfs_trans_log_inode(tp, ip, logflags); + return error; +} diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index b879ca5..135cf81 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -177,10 +177,17 @@ int xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip, int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, xfs_extnum_t num); uint xfs_default_attroffset(struct xfs_inode *ip); -int xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip, +int xfs_bmap_shift_extents_left(struct xfs_trans *tp, struct xfs_inode *ip, int *done, xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, xfs_extnum_t *current_ext, xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, int num_exts); +int xfs_bmap_split_extent(struct xfs_inode *ip, xfs_fileoff_t split_offset, + xfs_extnum_t *split_ext); +int xfs_bmap_shift_extents_right(struct xfs_trans *tp, struct xfs_inode *ip, + int *done, xfs_fsblock_t offset_shift_fsb, + xfs_extnum_t *current_ext, xfs_extnum_t end_ext, + xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, + int num_exts); #endif /* __XFS_BMAP_H__ */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index d32889a..815584e 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1505,7 +1505,7 @@ xfs_collapse_file_space( * We are using the write transaction in which max 2 bmbt * updates are allowed */ - error = xfs_bmap_shift_extents(tp, ip, &done, start_fsb, + error = xfs_bmap_shift_extents_left(tp, ip, &done, start_fsb, shift_fsb, ¤t_ext, &first_block, &free_list, XFS_BMAP_MAX_SHIFT_EXTENTS); @@ -1529,6 +1529,127 @@ out: } /* + * xfs_insert_file_space() + * This routine create hole space by shifting extents for the given file. + * The first thing we do is to sync dirty data and invalidate page cache + * over the region on which insert range is working. And split an extent + * to two extents at given offset by calling xfs_bmap_split_extent. + * And shift all extent records which are laying between [offset, + * last allocated extent] to the right to reserve hole range. + * RETURNS: + * 0 on success + * errno on error + * + */ +int +xfs_insert_file_space( + struct xfs_inode *ip, + loff_t offset, + loff_t len) +{ + struct xfs_mount *mp = ip->i_mount; + struct xfs_trans *tp; + struct xfs_bmap_free free_list; + xfs_fsblock_t first_block; + xfs_ifork_t *ifp; + int done = 0; + int committed; + int error; + uint rounding; + xfs_fileoff_t start_fsb; + xfs_fileoff_t shift_fsb; + xfs_extnum_t split_ext; + xfs_extnum_t current_ext = 0; + xfs_off_t ioffset; + + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + trace_xfs_insert_file_space(ip); + + error = xfs_qm_dqattach(ip, 0); + if (error) + return error; + + /* wait for the completion of any pending DIOs */ + inode_dio_wait(VFS_I(ip)); + + rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE); + ioffset = offset & ~(rounding - 1); + error = -filemap_write_and_wait_range(VFS_I(ip)->i_mapping, + ioffset, -1); + if (error) + return error; + + truncate_pagecache_range(VFS_I(ip), ioffset, -1); + + start_fsb = XFS_B_TO_FSB(mp, offset); + shift_fsb = XFS_B_TO_FSB(mp, len); + + error = xfs_bmap_split_extent(ip, start_fsb, &split_ext); + if (error) + return error; + + ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); + current_ext = (ifp->if_bytes / sizeof(xfs_bmbt_rec_t)) - 1; + while (!error && !done) { + tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); + /* + * We would need to reserve permanent block for transaction. + * This will come into picture when after shifting extent into + * hole we found that adjacent extents can be merged which + * may lead to freeing of a block during record update. + */ + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0); + if (error) { + xfs_trans_cancel(tp, 0); + break; + } + + xfs_ilock(ip, XFS_ILOCK_EXCL); + error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot, + ip->i_gdquot, ip->i_pdquot, + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, + XFS_QMOPT_RES_REGBLKS); + if (error) + goto error1; + + xfs_trans_ijoin(tp, ip, 0); + + xfs_bmap_init(&free_list, &first_block); + + /* + * We are using the write transaction in which max 2 bmbt + * updates are allowed + */ + error = xfs_bmap_shift_extents_right(tp, ip, &done, shift_fsb, + ¤t_ext, split_ext, + &first_block, &free_list, + XFS_BMAP_MAX_SHIFT_EXTENTS); + if (error) + goto error0; + + error = xfs_bmap_finish(&tp, &free_list, &committed); + if (error) + goto error0; + + error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + if (error) + goto out; + } + +out: + return error; + +error0: + xfs_bmap_cancel(&free_list); +error1: + xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); + xfs_iunlock(ip, XFS_ILOCK_EXCL); + return error; +} + +/* * We need to check that the format of the data fork in the temporary inode is * valid for the target inode before doing the swap. This is not a problem with * attr1 because of the fixed fork offset, but attr2 has a dynamically sized diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h index 2fdb72d..6cb116c 100644 --- a/fs/xfs/xfs_bmap_util.h +++ b/fs/xfs/xfs_bmap_util.h @@ -98,6 +98,8 @@ int xfs_zero_file_space(struct xfs_inode *ip, xfs_off_t offset, xfs_off_t len); int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset, xfs_off_t len); +int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset, + xfs_off_t len); /* EOF block manipulation functions */ bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force); diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index fcf91a2..09c82e7 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -771,11 +771,13 @@ xfs_file_fallocate( struct xfs_trans *tp; long error; loff_t new_size = 0; + int do_file_insert = 0; if (!S_ISREG(inode->i_mode)) return -EINVAL; if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | - FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE)) + FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | + FALLOC_FL_INSERT_RANGE)) return -EOPNOTSUPP; xfs_ilock(ip, XFS_IOLOCK_EXCL); @@ -805,6 +807,28 @@ xfs_file_fallocate( error = xfs_collapse_file_space(ip, offset, len); if (error) goto out_unlock; + } else if (mode & FALLOC_FL_INSERT_RANGE) { + unsigned blksize_mask = (1 << inode->i_blkbits) - 1; + + if (offset & blksize_mask || len & blksize_mask) { + error = -EINVAL; + goto out_unlock; + } + + /* Check for wrap through zero */ + if (inode->i_size + len > inode->i_sb->s_maxbytes) { + error = -EFBIG; + goto out_unlock; + } + + /* Offset should be less than i_size */ + if (offset >= i_size_read(inode)) { + error = -EINVAL; + goto out_unlock; + } + + new_size = i_size_read(inode) + len; + do_file_insert = 1; } else { if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > i_size_read(inode)) { @@ -855,8 +879,20 @@ xfs_file_fallocate( iattr.ia_valid = ATTR_SIZE; iattr.ia_size = new_size; error = xfs_setattr_size(ip, &iattr); + if (error) + goto out_unlock; } + /* + * Some operations are performed after the inode size is updated. For + * example, insert range expands the address space of the file, shifts + * all subsequent extents to create a hole inside the file. Updating + * the size first ensures that shifted extents aren't left hanging + * past EOF in the event of a crash or failure. + */ + if (do_file_insert) + error = xfs_insert_file_space(ip, offset, len); + out_unlock: xfs_iunlock(ip, XFS_IOLOCK_EXCL); return error; diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 152f827..8943c9f 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -663,6 +663,7 @@ DEFINE_INODE_EVENT(xfs_alloc_file_space); DEFINE_INODE_EVENT(xfs_free_file_space); DEFINE_INODE_EVENT(xfs_zero_file_space); DEFINE_INODE_EVENT(xfs_collapse_file_space); +DEFINE_INODE_EVENT(xfs_insert_file_space); DEFINE_INODE_EVENT(xfs_readdir); #ifdef CONFIG_XFS_POSIX_ACL DEFINE_INODE_EVENT(xfs_get_acl); -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:06:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 265E37FA1 for ; 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Fri, 08 Aug 2014 14:06:05 +0900 (KST) X-AuditID: cbfee68d-b7f2f6d0000062f0-49-53e45abd35d0 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 99.BC.04943.DBA54E35; Fri, 08 Aug 2014 14:06:05 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z00NCL26544A0@mmp1.samsung.com>; Fri, 08 Aug 2014 14:06:05 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 3/10] ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate Date: Fri, 08 Aug 2014 14:06:05 +0900 X-ASG-Orig-Subj: [PATCH v5 3/10] ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate Message-id: <004401cfb2c6$74f78140$5ee683c0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; 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If the computed block number is not the starting block of the extent, split the extent such that the block number is the starting block of the extent. 4) Shift all the extents which are lying bewteen [offset, last allocated extent] towards right by len bytes. This step will make a hole of len bytes at offset. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- Changelog v5: - remove allocation part. fs/ext4/ext4.h | 1 + fs/ext4/extents.c | 322 ++++++++++++++++++++++++++++++++++++++++++-- include/trace/events/ext4.h | 25 ++++ 3 files changed, 339 insertions(+), 9 deletions(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 5b19760..03bd3ec 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -2730,6 +2730,7 @@ extern int ext4_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, __u64 start, __u64 len); extern int ext4_ext_precache(struct inode *inode); extern int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len); +extern int ext4_insert_range(struct file *file, loff_t offset, loff_t len); /* move_extent.c */ extern void ext4_double_down_write_data_sem(struct inode *first, diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 76c2df3..a1e0635 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -4891,7 +4891,8 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) /* Return error if mode is not supported */ if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | - FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE)) + FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | + FALLOC_FL_INSERT_RANGE)) return -EOPNOTSUPP; if (mode & FALLOC_FL_PUNCH_HOLE) @@ -4914,6 +4915,9 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len) if (mode & FALLOC_FL_ZERO_RANGE) return ext4_zero_range(file, offset, len, mode); + if (mode & FALLOC_FL_INSERT_RANGE) + return ext4_insert_range(file, offset, len); + trace_ext4_fallocate_enter(inode, offset, len, mode); lblk = offset >> blkbits; /* @@ -5216,13 +5220,13 @@ ext4_access_path(handle_t *handle, struct inode *inode, } /* - * ext4_ext_shift_path_extents: + * ext4_ext_shift_path_extents_left: * Shift the extents of a path structure lying between path[depth].p_ext - * and EXT_LAST_EXTENT(path[depth].p_hdr) downwards, by subtracting shift + * and EXT_LAST_EXTENT(path[depth].p_hdr) to the left, by subtracting shift * from starting block for each extent. */ static int -ext4_ext_shift_path_extents(struct ext4_ext_path *path, ext4_lblk_t shift, +ext4_ext_shift_path_extents_left(struct ext4_ext_path *path, ext4_lblk_t shift, struct inode *inode, handle_t *handle, ext4_lblk_t *start) { @@ -5292,13 +5296,13 @@ out: } /* - * ext4_ext_shift_extents: + * ext4_ext_shift_extents_left: * All the extents which lies in the range from start to the last allocated - * block for the file are shifted downwards by shift blocks. + * block for the file are shifted to the left by shift blocks. * On success, 0 is returned, error otherwise. */ static int -ext4_ext_shift_extents(struct inode *inode, handle_t *handle, +ext4_ext_shift_extents_left(struct inode *inode, handle_t *handle, ext4_lblk_t start, ext4_lblk_t shift) { struct ext4_ext_path *path; @@ -5378,7 +5382,7 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle, break; } } - ret = ext4_ext_shift_path_extents(path, shift, inode, + ret = ext4_ext_shift_path_extents_left(path, shift, inode, handle, &start); ext4_ext_drop_refs(path); kfree(path); @@ -5483,7 +5487,7 @@ int ext4_collapse_range(struct inode *inode, loff_t offset, loff_t len) } ext4_discard_preallocations(inode); - ret = ext4_ext_shift_extents(inode, handle, punch_stop, + ret = ext4_ext_shift_extents_left(inode, handle, punch_stop, punch_stop - punch_start); if (ret) { up_write(&EXT4_I(inode)->i_data_sem); @@ -5508,3 +5512,303 @@ out_mutex: mutex_unlock(&inode->i_mutex); return ret; } + +/* + * ext4_ext_shift_path_extents_right: + * Shift the extents of a path structure towards right, by adding shift_lblk + * to the starting ee_block of each extent. Shifting is done from + * the last extent in the path till we reach first extent OR hit start_lblk. + * In case the first extent in the path is updated, extent index will also be + * updated if it is present. + * On success, 0 is returned, error otherwise. + */ +static int +ext4_ext_shift_path_extents_right(struct ext4_ext_path *path, + struct inode *inode, handle_t *handle, + ext4_lblk_t start_lblk, ext4_lblk_t shift_lblk) +{ + int depth, err = 0; + struct ext4_extent *ex_start, *ex_last; + + depth = ext_depth(inode); + while (depth >= 0) { + if (depth == path->p_depth) { + ex_start = EXT_FIRST_EXTENT(path[depth].p_hdr); + + ex_last = EXT_LAST_EXTENT(path[depth].p_hdr); + if (!ex_last) + return -EIO; + + err = ext4_access_path(handle, inode, path + depth); + if (err) + goto out; + + while ((ex_start <= ex_last) && + (le32_to_cpu(ex_last->ee_block) >= start_lblk)) { + le32_add_cpu(&ex_last->ee_block, shift_lblk); + ext4_ext_try_to_merge_right(inode, path, + ex_last); + ex_last--; + } + err = ext4_ext_dirty(handle, inode, path + depth); + if (err) + goto out; + + if (--depth < 0 || ex_start <= ex_last) + break; + } + + /* Update index too */ + err = ext4_access_path(handle, inode, path + depth); + if (err) + goto out; + le32_add_cpu(&path[depth].p_idx->ei_block, shift_lblk); + err = ext4_ext_dirty(handle, inode, path + depth); + if (err) + goto out; + + /* we are done if current index is not a starting index */ + if (path[depth].p_idx != EXT_FIRST_INDEX(path[depth].p_hdr)) + break; + + depth--; + } + +out: + return err; +} + +/* + * ext4_ext_shift_extents_right: + * All the extents of an inode which lies in the range from start_lblk + * to the last allocated block are shifted right by @shift_lblk blocks. + * As we will be shifitng complete extents, @start_lblk should be the + * starting block of an extent OR it can lie in a hole. + * On success, 0 is returned, error otherwise. + */ +static int +ext4_ext_shift_extents_right(struct inode *inode, handle_t *handle, + ext4_lblk_t start_lblk, ext4_lblk_t shift_lblk) +{ + struct ext4_ext_path *path; + struct ext4_extent *ex_start; + int ret = 0, depth; + ext4_lblk_t current_block = EXT_MAX_BLOCKS - 1; + + /* Its safe to start updating extents */ + while (start_lblk < current_block) { + path = ext4_ext_find_extent(inode, current_block, NULL, 0); + if (IS_ERR(path)) + return PTR_ERR(path); + + depth = ext_depth(inode); + if (unlikely(path[depth].p_hdr == NULL)) { + ret = -EIO; + goto out_stop; + } + + ex_start = EXT_FIRST_EXTENT(path[depth].p_hdr); + if (!ex_start) { + ret = -EIO; + goto out_stop; + } + + current_block = ex_start->ee_block; + ret = ext4_ext_shift_path_extents_right(path, inode, handle, + start_lblk, shift_lblk); +out_stop: + ext4_ext_drop_refs(path); + kfree(path); + if (ret) + break; + } + + return ret; +} + +/* + * ext4_insert_range: + * This function implements the FALLOC_FL_INSERT_RANGE flag of fallocate. + * The data blocks starting from @offset to the EOF are shifted by @len + * towards right to create a hole in the @inode. Inode size is increased + * by len bytes. + * Returns 0 on success, error otherwise. + */ +int ext4_insert_range(struct file *file, loff_t offset, loff_t len) +{ + struct inode *inode = file_inode(file); + struct super_block *sb = inode->i_sb; + handle_t *handle; + struct ext4_ext_path *path; + struct ext4_extent *extent; + ext4_lblk_t offset_lblk, len_lblk, ee_start_lblk, ee_last_lblk; + unsigned int credits, ee_len; + int ret = 0, depth, split_flag = 0; + loff_t ioffset; + + /* Insert range works only on fs block size aligned offsets. */ + if (offset & (EXT4_CLUSTER_SIZE(sb) - 1) || + len & (EXT4_CLUSTER_SIZE(sb) - 1)) + return -EINVAL; + + if (!S_ISREG(inode->i_mode)) + return -EOPNOTSUPP; + + trace_ext4_insert_range(inode, offset, len); + + offset_lblk = offset >> EXT4_BLOCK_SIZE_BITS(sb); + len_lblk = len >> EXT4_BLOCK_SIZE_BITS(sb); + + /* Call ext4_force_commit to flush all data in case of data=journal */ + if (ext4_should_journal_data(inode)) { + ret = ext4_force_commit(inode->i_sb); + if (ret) + return ret; + } + + /* + * Need to round down to align start offset to page size boundary + * for page size > block size. + */ + ioffset = round_down(offset, PAGE_SIZE); + + /* Write out all dirty pages */ + ret = filemap_write_and_wait_range(inode->i_mapping, ioffset, + LLONG_MAX); + if (ret) + return ret; + + /* Take mutex lock */ + mutex_lock(&inode->i_mutex); + + /* Currently just for extent based files */ + if (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) { + ret = -EOPNOTSUPP; + goto out_mutex; + } + + /* Check for wrap through zero */ + if (inode->i_size + len > inode->i_sb->s_maxbytes) { + ret = -EFBIG; + goto out_mutex; + } + + /* Offset should be less than i_size */ + if (offset >= i_size_read(inode)) { + ret = -EINVAL; + goto out_mutex; + } + + path = ext4_ext_find_extent(inode, EXT_MAX_BLOCKS - 1, NULL, 0); + if (IS_ERR(path)) { + ret = PTR_ERR(path); + goto out_mutex; + } + + depth = path->p_depth; + extent = path[depth].p_ext; + if (extent) { + /* + * Check if number of blocks of file shifted by insert range + * can be bigger than EXT_MAX_BLOCKS at first. + */ + ee_last_lblk = le32_to_cpu(extent->ee_block) + + ext4_ext_get_actual_len(extent); + if (ee_last_lblk + len_lblk > EXT_MAX_BLOCKS - 1) + ret = -EINVAL; + } + ext4_ext_drop_refs(path); + kfree(path); + if (ret) + goto out_mutex; + + truncate_pagecache(inode, ioffset); + + /* Wait for existing dio to complete */ + ext4_inode_block_unlocked_dio(inode); + inode_dio_wait(inode); + + credits = ext4_writepage_trans_blocks(inode); + handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); + goto out_dio; + } + + /* Expand file to avoid data loss if there is error while shifting */ + inode->i_size += len; + EXT4_I(inode)->i_disksize += len; + inode->i_mtime = inode->i_ctime = ext4_current_time(inode); + ret = ext4_mark_inode_dirty(handle, inode); + if (ret) + goto out_stop; + + if (!extent) + goto out_stop; + + down_write(&EXT4_I(inode)->i_data_sem); + ext4_discard_preallocations(inode); + + path = ext4_ext_find_extent(inode, offset_lblk, NULL, 0); + if (IS_ERR(path)) { + up_write(&EXT4_I(inode)->i_data_sem); + goto out_stop; + } + + depth = ext_depth(inode); + extent = path[depth].p_ext; + if (extent) { + ee_start_lblk = le32_to_cpu(extent->ee_block); + ee_len = ext4_ext_get_actual_len(extent); + + /* + * If offset_lblk is not the starting block of extent, split + * the extent @offset_lblk + */ + if ((offset_lblk > ee_start_lblk) && + (offset_lblk < (ee_start_lblk + ee_len))) { + if (ext4_ext_is_unwritten(extent)) + split_flag = EXT4_EXT_MARK_UNWRIT1 | + EXT4_EXT_MARK_UNWRIT2; + ret = ext4_split_extent_at(handle, inode, path, + offset_lblk, split_flag, + EXT4_EX_NOCACHE | + EXT4_GET_BLOCKS_PRE_IO | + EXT4_GET_BLOCKS_METADATA_NOFAIL); + } + + ext4_ext_drop_refs(path); + kfree(path); + if (ret < 0) { + up_write(&EXT4_I(inode)->i_data_sem); + goto out_stop; + } + } + + ret = ext4_es_remove_extent(inode, offset_lblk, + EXT_MAX_BLOCKS - offset_lblk); + if (ret) { + up_write(&EXT4_I(inode)->i_data_sem); + goto out_stop; + } + + /* + * if offset_lblk lies in a hole which is at start of file, use + * ee_start_lblk to shift extents + */ + ret = ext4_ext_shift_extents_right(inode, handle, + ee_start_lblk > offset_lblk ? ee_start_lblk : offset_lblk, + len_lblk); + + up_write(&EXT4_I(inode)->i_data_sem); + if (IS_SYNC(inode)) + ext4_handle_sync(handle); + +out_stop: + ext4_journal_stop(handle); +out_dio: + ext4_inode_resume_unlocked_dio(inode); +out_mutex: + mutex_unlock(&inode->i_mutex); + return ret; +} diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index d4f70a7..0b90106 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -2438,6 +2438,31 @@ TRACE_EVENT(ext4_collapse_range, __entry->offset, __entry->len) ); +TRACE_EVENT(ext4_insert_range, + TP_PROTO(struct inode *inode, loff_t offset, loff_t len), + + TP_ARGS(inode, offset, len), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(loff_t, offset) + __field(loff_t, len) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->offset = offset; + __entry->len = len; + ), + + TP_printk("dev %d,%d ino %lu offset %lld len %lld", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->offset, __entry->len) +); + #endif /* _TRACE_EXT4_H */ /* This part must be outside protection */ -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:06:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 05A857FA1 for ; Fri, 8 Aug 2014 00:06:31 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 96D9CAC003 for ; Thu, 7 Aug 2014 22:06:30 -0700 (PDT) X-ASG-Debug-ID: 1407474387-04bdf03466700c0002-NocioJ Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) by cuda.sgi.com with ESMTP id agvmHo2VvtzReCsn (version=TLSv1 cipher=RC4-MD5 bits=128 verify=NO) for ; Thu, 07 Aug 2014 22:06:29 -0700 (PDT) X-Barracuda-Envelope-From: namjae.jeon@samsung.com X-Barracuda-Apparent-Source-IP: 203.254.224.24 X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] Received: from epcpsbgr5.samsung.com (u145.gpu120.samsung.co.kr [203.254.230.145]) by mailout1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N9Z000TB26QUKB0@mailout1.samsung.com> for xfs@oss.sgi.com; Fri, 08 Aug 2014 14:06:26 +0900 (KST) X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] X-Barracuda-IPDD: Level2 [samsung.com/203.254.224.24] Received: from epcpsbgm2.samsung.com ( [172.20.52.112]) by epcpsbgr5.samsung.com (EPCPMTA) with SMTP id 97.97.15745.2DA54E35; Fri, 08 Aug 2014 14:06:26 +0900 (KST) X-AuditID: cbfee691-b7f306d000003d81-e5-53e45ad24e57 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id E1.08.05196.2DA54E35; Fri, 08 Aug 2014 14:06:26 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z00MME26QZ3A0@mmp1.samsung.com>; Fri, 08 Aug 2014 14:06:26 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 4/10] xfsprogs: xfs_io: add finsert command for insert range via fallocate Date: Fri, 08 Aug 2014 14:06:26 +0900 X-ASG-Orig-Subj: [PATCH v5 4/10] xfsprogs: xfs_io: add finsert command for insert range via fallocate Message-id: <004501cfb2c6$81801f80$84805e80$@samsung.com> MIME-version: 1.0 Content-type: text/plain; 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Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- io/prealloc.c | 39 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/io/prealloc.c b/io/prealloc.c index aba6b44..11b1e12 100644 --- a/io/prealloc.c +++ b/io/prealloc.c @@ -37,6 +37,10 @@ #define FALLOC_FL_ZERO_RANGE 0x10 #endif +#ifndef FALLOC_FL_INSERT_RANGE +#define FALLOC_FL_INSERT_RANGE 0x20 +#endif + static cmdinfo_t allocsp_cmd; static cmdinfo_t freesp_cmd; static cmdinfo_t resvsp_cmd; @@ -46,6 +50,7 @@ static cmdinfo_t zero_cmd; static cmdinfo_t falloc_cmd; static cmdinfo_t fpunch_cmd; static cmdinfo_t fcollapse_cmd; +static cmdinfo_t finsert_cmd; static cmdinfo_t fzero_cmd; #endif @@ -169,11 +174,14 @@ fallocate_f( int mode = 0; int c; - while ((c = getopt(argc, argv, "ckp")) != EOF) { + while ((c = getopt(argc, argv, "cikp")) != EOF) { switch (c) { case 'c': mode = FALLOC_FL_COLLAPSE_RANGE; break; + case 'i': + mode = FALLOC_FL_INSERT_RANGE; + break; case 'k': mode = FALLOC_FL_KEEP_SIZE; break; @@ -237,6 +245,25 @@ fcollapse_f( } static int +finsert_f( + int argc, + char **argv) +{ + xfs_flock64_t segment; + int mode = FALLOC_FL_INSERT_RANGE; + + if (!offset_length(argv[1], argv[2], &segment)) + return 0; + + if (fallocate(file->fd, mode, + segment.l_start, segment.l_len)) { + perror("fallocate"); + return 0; + } + return 0; +} + +static int fzero_f( int argc, char **argv) @@ -345,6 +372,16 @@ prealloc_init(void) _("de-allocates space and eliminates the hole by shifting extents"); add_command(&fcollapse_cmd); + finsert_cmd.name = "finsert"; + finsert_cmd.cfunc = finsert_f; + finsert_cmd.argmin = 2; + finsert_cmd.argmax = 2; + finsert_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK; + finsert_cmd.args = _("off len"); + finsert_cmd.oneline = + _("creates new space for writing within file by shifting extents"); + add_command(&finsert_cmd); + fzero_cmd.name = "fzero"; fzero_cmd.cfunc = fzero_f; fzero_cmd.argmin = 2; -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:06:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 001647F4E for ; 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Fri, 08 Aug 2014 14:06:34 +0900 (KST) X-AuditID: cbfee68f-b7fa26d0000039a0-33-53e45adabd49 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 37.08.05196.9DA54E35; Fri, 08 Aug 2014 14:06:33 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z003F126X22B0@mmp2.samsung.com>; Fri, 08 Aug 2014 14:06:33 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 5/10] xfstests: generic/029: Standard insert range tests Date: Fri, 08 Aug 2014 14:06:33 +0900 X-ASG-Orig-Subj: [PATCH v5 5/10] xfstests: generic/029: Standard insert range tests Message-id: <004601cfb2c6$86035db0$920a1910$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yvrMbr/8vi1gJQX2Wlv/g+rKl6g== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFIsWRmVeSWpSXmKPExsWyRsSkUPdW1JNgg+3LOCzefa6y2HLsHqPF sgebWSxmzrvDZrFn70kWi8u75rBZtPb8ZLdY1HeL0YHD49QiCY+mM0eZPVZf2Mro8X7fVTaP z5vkAlijuGxSUnMyy1KL9O0SuDK29K1jKjirX/H93xOmBsZ/al2MnBwSAiYSa7ZPZYSwxSQu 3FvP1sXIxSEksJRR4sC/WewwRQuezIdKTAdKHPjMDOH8ZZQ4snoOkMPBwSagLfFniyhIg4iA q8S8u9/BpjIL3GGU+LXGGMQWFvCWeDPrLxtIOYuAqsS7eRkgYV4BS4mDO5cxQdiCEj8m32MB KWEW0JH4OikCYoq8xOY1b5khzlGQ2HH2NSPEJj2J3TuPMkPUiEjse/GOEeQyCYFL7BI7T18H m8kiICDxbfIhsJkSArISmw5AzZGUOLjiBssERrFZSDbPQtg8C8nmWUg2LGBkWcUomlqQXFCc lF5krFecmFtcmpeul5yfu4kRGI+n/z3r38F494D1IcZkoO0TmaVEk/OB8ZxXEm9obGZkYWpi amxkbmlGmrCSOO/9h0lBQgLpiSWp2ampBalF8UWlOanFhxiZODilGhiPqt9e+WPv4y08nzt1 zmdM+/jnunAKc/LJmTWy51UqPO9EmTefvrXrUVjHA0fFeamLPzg7+3utfrStYffbSVwG8hxV R4KkA3UqlzmJCcnELg5W+RW4mN/yfK7vNiPurDnL5IIvzvz54Zw528tFk5fYaz/zOWJ4arqV mhv7nSWNm1f/sY4UUudTYinOSDTUYi4qTgQADY4rA90CAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrJIsWRmVeSWpSXmKPExsVy+t9jQd2bUU+CDb432Vq8+1xlseXYPUaL ZQ82s1jMnHeHzWLP3pMsFpd3zWGzaO35yW6xqO8WowOHx6lFEh5NZ44ye6y+sJXR4/2+q2we nzfJBbBGNTDaZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoqufgE6Lpl 5gCdoqRQlphTChQKSCwuVtK3wzQhNMRN1wKmMULXNyQIrsfIAA0krGHM2NK3jqngrH7F939P mBoY/6l1MXJySAiYSCx4Mp8NwhaTuHBvPZDNxSEkMJ1R4sCBz8wQzl9GiSOr5wA5HBxsAtoS f7aIgjSICLhKzLv7nRHEZha4wyjxa40xiC0s4C3xZtZfNpByFgFViXfzMkDCvAKWEgd3LmOC sAUlfky+xwJSwiygI/F1UgTEFHmJzWveMkOcoyCx4+xrRohNehK7dx5lhqgRkdj34h3jBEaB WUgmzUKYNAvJpFlIOhYwsqxiFE0tSC4oTkrPNdIrTswtLs1L10vOz93ECI72Z9I7GFc1WBxi FOBgVOLhFeh+HCzEmlhWXJl7iFGCg1lJhLfmM1CINyWxsiq1KD++qDQntfgQoynQmxOZpUST 84GJKK8k3tDYxMzI0sjc0MLI2FxJnPdgq3WgkEB6YklqdmpqQWoRTB8TB6dUA2POhtnvVh0W 47xWz7fIUHta0XS3xeKlzn5T9+rbXXJMkuIMvBRj8ffNeiXNsszMtL9V669ob1zV9VGqJe9B SlhBlNYFjU+rtn6alOdzNnlpwjPb3vKqx+bl5aGb5iT+UhGvEbf7tz303dHXTy/u4l39+8/+ 0jKvnufmWVNfrH76Z6uPhxvv2YNKLMUZiYZazEXFiQAlZx/TDAMAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout2.samsung.com[203.254.224.25] X-Barracuda-Start-Time: 1407474400 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This testcase(029) tries to test various corner cases for finsert range functionality over different type of extents. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- common/punch | 5 ++++ common/rc | 2 +- tests/generic/029 | 65 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/029.out | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/group | 1 + 5 files changed, 150 insertions(+), 1 deletion(-) create mode 100644 tests/generic/029 create mode 100644 tests/generic/029.out diff --git a/common/punch b/common/punch index f2d538c..4cc50d5 100644 --- a/common/punch +++ b/common/punch @@ -527,6 +527,11 @@ _test_generic_punch() return fi + # If zero_cmd is finsert, don't check unaligned offsets + if [ "$zero_cmd" == "finsert" ]; then + return + fi + echo " 16. data -> cache cold ->hole" if [ "$remove_testfile" ]; then rm -f $testfile diff --git a/common/rc b/common/rc index 2c83340..6d805cf 100644 --- a/common/rc +++ b/common/rc @@ -1272,7 +1272,7 @@ _require_xfs_io_command() "falloc" ) testio=`$XFS_IO_PROG -F -f -c "falloc 0 1m" $testfile 2>&1` ;; - "fpunch" | "fcollapse" | "zero" | "fzero" ) + "fpunch" | "fcollapse" | "zero" | "fzero" | "finsert" ) testio=`$XFS_IO_PROG -F -f -c "pwrite 0 20k" -c "fsync" \ -c "$command 4k 8k" $testfile 2>&1` ;; diff --git a/tests/generic/029 b/tests/generic/029 new file mode 100644 index 0000000..2b18069 --- /dev/null +++ b/tests/generic/029 @@ -0,0 +1,65 @@ +#! /bin/bash +# FS QA Test No. generic/029 +# +# Standard insert range tests +# This testcase is one of the 4 testcases which tries to +# test various corner cases for finsert range functionality over different +# type of extents. These tests are based on generic/255 test case. +# For the type of tests, check the description of _test_generic_punch +# in common/rc. +#----------------------------------------------------------------------- +# Copyright (c) 2013 Samsung Electronics. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! + +_cleanup() +{ + rm -f $tmp.* +} + +trap "_cleanup ; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +# we need to include common/punch to get defination fo filter functions +. ./common/rc +. ./common/filter +. ./common/punch + +# real QA test starts here +_supported_fs generic +_supported_os Linux + +_require_xfs_io_command "fpunch" +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" +_require_xfs_io_command "finsert" + +testfile=$TEST_DIR/$seq.$$ + +_test_generic_punch falloc fpunch finsert fiemap _filter_hole_fiemap $testfile +_check_test_fs + +status=0 +exit diff --git a/tests/generic/029.out b/tests/generic/029.out new file mode 100644 index 0000000..572fa45 --- /dev/null +++ b/tests/generic/029.out @@ -0,0 +1,78 @@ +QA output created by 029 + 1. into a hole +cf845a781c107ec1346e849c9dd1b7e8 + 2. into allocated space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +64e72217eebcbdf31b1b058f9f5f476a + 3. into unwritten space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +cf845a781c107ec1346e849c9dd1b7e8 + 4. hole -> data +0: [0..31]: hole +1: [32..47]: extent +2: [48..55]: hole +adb08a6d94a3b5eff90fdfebb2366d31 + 5. hole -> unwritten +0: [0..31]: hole +1: [32..47]: extent +2: [48..55]: hole +cf845a781c107ec1346e849c9dd1b7e8 + 6. data -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..55]: hole +be0f35d4292a20040766d87883b0abd1 + 7. data -> unwritten +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +be0f35d4292a20040766d87883b0abd1 + 8. unwritten -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..55]: hole +cf845a781c107ec1346e849c9dd1b7e8 + 9. unwritten -> data +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +adb08a6d94a3b5eff90fdfebb2366d31 + 10. hole -> data -> hole +0: [0..39]: hole +1: [40..47]: extent +2: [48..63]: hole +0487b3c52810f994c541aa166215375f + 11. data -> hole -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..39]: extent +3: [40..47]: hole +4: [48..63]: extent +e3a8d52acc4d91a8ed19d7b6f4f26a71 + 12. unwritten -> data -> unwritten +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +0487b3c52810f994c541aa166215375f + 13. data -> unwritten -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +2b22165f4a24a2c36fd05ef00b41df88 + 14. data -> hole @ EOF +0: [0..23]: extent +1: [24..39]: hole +2: [40..55]: extent +aa0f20d1edcdbce60d8ef82700ba30c3 + 15. data -> hole @ 0 +0: [0..15]: hole +1: [16..55]: extent +86c9d033be2761385c9cfa203c426bb2 diff --git a/tests/generic/group b/tests/generic/group index e822dfd..b1dc921 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -31,6 +31,7 @@ 026 acl quick auto 027 auto enospc 028 auto quick +029 auto quick prealloc 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:06:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BA0537FBE for ; 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charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yvtHopGdANkC+RMuDGWG+wb1Ftw== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrJIsWRmVeSWpSXmKPExsWyRsSkQPdB1JNgg79rFSzefa6y2HLsHqPF sgebWSxmzrvDZrFn70kWi8u75rBZtPb8ZLdY1HeL0YHD49QiCY+mM0eZPVZf2Mro8X7fVTaP z5vkAlijuGxSUnMyy1KL9O0SuDK2LUkuuK5RMfH7f5YGxgeKXYycHBICJhJ9l7cwQdhiEhfu rWfrYuTiEBJYyigxdc5fdpiiJQseM0EkFjFKLP2/hBnC+csoce3xYtYuRg4ONgFtiT9bREEa RARcJebd/c4IYjML3GGU+LXGGMQWFvCX+L26G2wbi4CqxJueA8wgNq+ApcTxd5dZIGxBiR+T 77GAjGQW0JH4OikCYoy8xOY1b5kh7lGQ2HH2NSPEKj2Jpz372SBqRCT2vXjHCFFziV1iy181 iFUCEt8mHwIbKSEgK7HpANQYSYmDK26wTGAUm4Vk8SyExbOQLJ6FZMECRpZVjKKpBckFxUnp RSZ6xYm5xaV56XrJ+bmbGIHRePrfswk7GO8dsD7EmAy0fSKzlGhyPjCa80riDY3NjCxMTUyN jcwtzUgTVhLnVXuUFCQkkJ5YkpqdmlqQWhRfVJqTWnyIkYmDU6qBUaBgKjMLf3ROyTnh203Z s/I2Kb6YGrqw53Nesq1OTdLDEwXOj8P0ebSfbDjF+064eGO7vHj6sytNbfPE1hvnbjr++Ulz xZFlTEcW/No368m0+vrC94tSWZrdasxM/QyXpd2x/SfJ1HzEwrtFo85JtuKfcyv3vTuHV8aw X+qTW5p40HAnx+kdSizFGYmGWsxFxYkAmhsEm9wCAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrJIsWRmVeSWpSXmKPExsVy+t9jAd0HUU+CDc5OkrB497nKYsuxe4wW yx5sZrGYOe8Om8WevSdZLC7vmsNm0drzk91iUd8tRgcOj1OLJDyazhxl9lh9YSujx/t9V9k8 Pm+SC2CNamC0yUhNTEktUkjNS85PycxLt1XyDo53jjc1MzDUNbS0MFdSyEvMTbVVcvEJ0HXL zAE6RUmhLDGnFCgUkFhcrKRvh2lCaIibrgVMY4Sub0gQXI+RARpIWMOYsW1JcsF1jYqJ3/+z NDA+UOxi5OSQEDCRWLLgMROELSZx4d56ti5GLg4hgUWMEkv/L2GGcP4ySlx7vJi1i5GDg01A W+LPFlGQBhEBV4l5d78zgtjMAncYJX6tMQaxhQX8JX6v7gYbyiKgKvGm5wAziM0rYClx/N1l FghbUOLH5HssICOZBXQkvk6KgBgjL7F5zVtmiHsUJHacfc0IsUpP4mnPfjaIGhGJfS/eMU5g FJiFZNIshEmzkEyahaRjASPLKkbR1ILkguKk9FxDveLE3OLSvHS95PzcTYzgaH8mtYNxZYPF IUYBDkYlHl6B7sfBQqyJZcWVuYcYJTiYlUR4az4DhXhTEiurUovy44tKc1KLDzGaAv05kVlK NDkfmIjySuINjU3MjCyNzA0tjIzNlcR5D7RaBwoJpCeWpGanphakFsH0MXFwSjUwmkycedMq 5+6/NYwfupZfW/1mqZlr1FbtvW7h7JO6r5zdnylzYxlfzuTDrHqiRuz/rtd1zDkadf/eRsNt 821nbJYKECl0zjDsUZczqCxq+7A8LKRtdujyLqWd9ksfPSuPmqBf/zds1a4ZEpEfJp+3Wf7V 1WKJcpWiy6Fbdmem9Sc+3cx5IFSwWomlOCPRUIu5qDgRAN0D+bYMAwAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout1.samsung.com[203.254.224.24] X-Barracuda-Start-Time: 1407474401 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This testcase(030) tries to test various corner cases with delayed extents for finsert range functionality over different type of extents. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- tests/generic/030 | 65 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/030.out | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/group | 1 + 3 files changed, 144 insertions(+) create mode 100644 tests/generic/030 create mode 100644 tests/generic/030.out diff --git a/tests/generic/030 b/tests/generic/030 new file mode 100644 index 0000000..7cbfa88 --- /dev/null +++ b/tests/generic/030 @@ -0,0 +1,65 @@ +#! /bin/bash +# FS QA Test No. generic/030 +# +# Delayed allocation insert range tests +# This testcase is one of the 4 testcases which tries to +# test various corner cases for finsert range functionality over different +# type of extents. These tests are based on generic/255 test case. +# For the type of tests, check the description of _test_generic_punch +# in common/rc. +#----------------------------------------------------------------------- +# Copyright (c) 2013 Samsung Electronics. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! + +_cleanup() +{ + rm -f $tmp.* +} + +trap "_cleanup ; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +# we need to include common/punch to get defination fo filter functions +. ./common/rc +. ./common/filter +. ./common/punch + +# real QA test starts here +_supported_fs generic +_supported_os Linux + +_require_xfs_io_command "fpunch" +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" +_require_xfs_io_command "finsert" + +testfile=$TEST_DIR/$seq.$$ + +_test_generic_punch -d falloc fpunch finsert fiemap _filter_hole_fiemap $testfile +_check_test_fs + +status=0 +exit diff --git a/tests/generic/030.out b/tests/generic/030.out new file mode 100644 index 0000000..5812622 --- /dev/null +++ b/tests/generic/030.out @@ -0,0 +1,78 @@ +QA output created by 030 + 1. into a hole +cf845a781c107ec1346e849c9dd1b7e8 + 2. into allocated space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +64e72217eebcbdf31b1b058f9f5f476a + 3. into unwritten space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +cf845a781c107ec1346e849c9dd1b7e8 + 4. hole -> data +0: [0..31]: hole +1: [32..47]: extent +2: [48..55]: hole +adb08a6d94a3b5eff90fdfebb2366d31 + 5. hole -> unwritten +0: [0..31]: hole +1: [32..47]: extent +2: [48..55]: hole +cf845a781c107ec1346e849c9dd1b7e8 + 6. data -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..55]: hole +be0f35d4292a20040766d87883b0abd1 + 7. data -> unwritten +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +be0f35d4292a20040766d87883b0abd1 + 8. unwritten -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..55]: hole +cf845a781c107ec1346e849c9dd1b7e8 + 9. unwritten -> data +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +adb08a6d94a3b5eff90fdfebb2366d31 + 10. hole -> data -> hole +0: [0..39]: hole +1: [40..47]: extent +2: [48..63]: hole +0487b3c52810f994c541aa166215375f + 11. data -> hole -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..39]: extent +3: [40..47]: hole +4: [48..63]: extent +e3a8d52acc4d91a8ed19d7b6f4f26a71 + 12. unwritten -> data -> unwritten +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +0487b3c52810f994c541aa166215375f + 13. data -> unwritten -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +2b22165f4a24a2c36fd05ef00b41df88 + 14. data -> hole @ EOF +0: [0..23]: extent +1: [24..39]: hole +2: [40..55]: extent +aa0f20d1edcdbce60d8ef82700ba30c3 + 15. data -> hole @ 0 +0: [0..15]: hole +1: [16..55]: extent +86c9d033be2761385c9cfa203c426bb2 diff --git a/tests/generic/group b/tests/generic/group index b1dc921..b847c47 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -32,6 +32,7 @@ 027 auto enospc 028 auto quick 029 auto quick prealloc +030 auto quick prealloc 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:06:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BE2957F4E for ; Fri, 8 Aug 2014 00:06:54 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8EACB304059 for ; Thu, 7 Aug 2014 22:06:54 -0700 (PDT) X-ASG-Debug-ID: 1407474411-04bdf0346970100001-NocioJ Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) by cuda.sgi.com with ESMTP id nHEaZYeDBtA8cJdF (version=TLSv1 cipher=RC4-MD5 bits=128 verify=NO) for ; Thu, 07 Aug 2014 22:06:52 -0700 (PDT) X-Barracuda-Envelope-From: namjae.jeon@samsung.com X-Barracuda-Apparent-Source-IP: 203.254.224.33 Received: from epcpsbgr4.samsung.com (u144.gpu120.samsung.co.kr [203.254.230.144]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N9Z00F3427EWL40@mailout3.samsung.com> for xfs@oss.sgi.com; Fri, 08 Aug 2014 14:06:50 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.113]) by epcpsbgr4.samsung.com (EPCPMTA) with SMTP id DC.4B.13863.9EA54E35; Fri, 08 Aug 2014 14:06:50 +0900 (KST) X-AuditID: cbfee690-b7f526d000003627-6a-53e45ae98268 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 36.EC.04943.9EA54E35; Fri, 08 Aug 2014 14:06:49 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0N9Z00BZC27D8N10@mmp2.samsung.com>; Fri, 08 Aug 2014 14:06:49 +0900 (KST) From: Namjae Jeon To: Dave Chinner , Theodore Ts'o Cc: linux-ext4 , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, =?iso-8859-2?Q?Luk=E1=B9_Czerner?= , Brian Foster Subject: [PATCH v5 7/10] xfstests: generic/031: Multi insert range tests Date: Fri, 08 Aug 2014 14:06:49 +0900 X-ASG-Orig-Subj: [PATCH v5 7/10] xfstests: generic/031: Multi insert range tests Message-id: <004801cfb2c6$8f712760$ae537620$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yvyLkil/6/WKKSBymP0M64Z84eA== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrJIsWRmVeSWpSXmKPExsWyRsSkUPdV1JNgg947rBbvPldZbDl2j9Fi 2YPNLBYz591hs9iz9ySLxeVdc9gsWnt+slss6rvF6MDhcWqRhEfTmaPMHqsvbGX0eL/vKpvH 501yAaxRXDYpqTmZZalF+nYJXBkrDp9jKmjQrJj6dBpLA2OjUhcjJ4eEgInEnoMtzBC2mMSF e+vZQGwhgaWMErOO68PUnDj3n72LkQsoPp1RYvmXo4wQzl9GifYpd4AcDg42AW2JP1tEQRpE BFwl5t39zghiMwvcYZT4tcYYxBYW8JDY+PU42AIWAVWJn3s3sIDYvAKWEnvaZjBB2IISPybf YwEZySygI/F1UgTEGHmJzWveQt2pILHj7GtGiFV6Epfnf2GFqBGR2PfiHSNEzSV2ibed/hCr BCS+TT4ENlJCQFZi0wGoMZISB1fcYJnAKDYLyeJZCItnIVk8C8mCBYwsqxhFUwuSC4qT0otM 9IoTc4tL89L1kvNzNzECo/H0v2cTdjDeO2B9iDEZaPtEZinR5HxgNOeVxBsamxlZmJqYGhuZ W5qRJqwkzqv2KClISCA9sSQ1OzW1ILUovqg0J7X4ECMTB6dUA2P1miKN1rWzbJr3nJr/J+R9 cu8XDnO5mz93rrjK4bZuWUnTz7mnhF0EAq3D5M393ar7G+W/izjPy7ZjTuzaE31+/pr2/qDZ VassOCxqFzmuFFLvCuebvnSu74EbCtI/GrrPuAu/Kn6540xhNvfZ+w2zUiI7K3eeuNndvo9H Omri3MwTW54bGSmxFGckGmoxFxUnAgB/lpsZ3AIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFIsWRmVeSWpSXmKPExsVy+t9jQd2XUU+CDXouWVm8+1xlseXYPUaL ZQ82s1jMnHeHzWLP3pMsFpd3zWGzaO35yW6xqO8WowOHx6lFEh5NZ44ye6y+sJXR4/2+q2we nzfJBbBGNTDaZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoqufgE6Lpl 5gCdoqRQlphTChQKSCwuVtK3wzQhNMRN1wKmMULXNyQIrsfIAA0krGHMWHH4HFNBg2bF1KfT WBoYG5W6GDk5JARMJE6c+88OYYtJXLi3nq2LkYtDSGA6o8TyL0cZIZy/jBLtU+4AORwcbALa En+2iII0iAi4Ssy7+50RxGYWuMMo8WuNMYgtLOAhsfHrcTYQm0VAVeLn3g0sIDavgKXEnrYZ TBC2oMSPyfdYQEYyC+hIfJ0UATFGXmLzmrfMEPcoSOw4+5oRYpWexOX5X1ghakQk9r14xziB UWAWkkmzECbNQjJpFpKOBYwsqxhFUwuSC4qT0nMN9YoTc4tL89L1kvNzNzGC4/2Z1A7GlQ0W hxgFOBiVeHgFuh8HC7EmlhVX5h5ilOBgVhLhrfkMFOJNSaysSi3Kjy8qzUktPsRoCvTnRGYp 0eR8YCrKK4k3NDYxM7I0Mje0MDI2VxLnPdBqHSgkkJ5YkpqdmlqQWgTTx8TBKdXAuGtiBx+7 0HP7th03/QP9buzZXqAXFfH+s9atrYYvlGIj3xyqzn3ZPCk0aplTjHDIfm+mg/f31iz77pu3 b9PJB4duPGU8tJqb+88XZsH6GRNq16ts0Kq8a6bf1f/inYnRNlnRbMEpvAbnJ2863VyeEicm oSY3I8098sqx/YqXVbI9p2fc0rr9T4mlOCPRUIu5qDgRACXKRfsNAwAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout3.samsung.com[203.254.224.33] X-Barracuda-Start-Time: 1407474412 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.61 X-Barracuda-Spam-Status: No, SCORE=0.61 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT, THREAD_INDEX X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8235 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.60 MARKETING_SUBJECT Subject contains popular marketing words This testcase(031) tries to test various corner cases with pre-existing holes for finsert range functionality over different type of extents. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- tests/generic/031 | 65 +++++++++++++++++++++++++++++++++++++++++ tests/generic/031.out | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/group | 1 + 3 files changed, 146 insertions(+) create mode 100644 tests/generic/031 create mode 100644 tests/generic/031.out diff --git a/tests/generic/031 b/tests/generic/031 new file mode 100644 index 0000000..0e18f87 --- /dev/null +++ b/tests/generic/031 @@ -0,0 +1,65 @@ +#! /bin/bash +# FS QA Test No. generic/031 +# +# Multi insert range tests +# This testcase is one of the 4 testcases which tries to +# test various corner cases for finsert range functionality over different +# type of extents. These tests are based on generic/255 test case. +# For the type of tests, check the description of _test_generic_punch +# in common/rc. +#----------------------------------------------------------------------- +# Copyright (c) 2013 Samsung Electronics. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! + +_cleanup() +{ + rm -f $tmp.* +} + +trap "_cleanup ; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +# we need to include common/punch to get defination fo filter functions +. ./common/rc +. ./common/filter +. ./common/punch + +# real QA test starts here +_supported_fs generic +_supported_os Linux + +_require_xfs_io_command "fpunch" +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" +_require_xfs_io_command "finsert" + +testfile=$TEST_DIR/$seq.$$ + +_test_generic_punch -k falloc fpunch finsert fiemap _filter_hole_fiemap $testfile +_check_test_fs + +status=0 +exit diff --git a/tests/generic/031.out b/tests/generic/031.out new file mode 100644 index 0000000..ae45352 --- /dev/null +++ b/tests/generic/031.out @@ -0,0 +1,80 @@ +QA output created by 031 + 1. into a hole +cf845a781c107ec1346e849c9dd1b7e8 + 2. into allocated space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +64e72217eebcbdf31b1b058f9f5f476a + 3. into unwritten space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +22b7303d274481990b5401b6263effe0 + 4. hole -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..55]: extent +c4fef62ba1de9d91a977cfeec6632f19 + 5. hole -> unwritten +0: [0..7]: extent +1: [8..31]: hole +2: [32..55]: extent +1ca74f7572a0f4ab477fdbb5682e5f61 + 6. data -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..47]: hole +4: [48..55]: extent +be0f35d4292a20040766d87883b0abd1 + 7. data -> unwritten +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +bddb1f3895268acce30d516a99cb0f2f + 8. unwritten -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..39]: hole +4: [40..55]: extent +f8fc47adc45b7cf72f988b3ddf5bff64 + 9. unwritten -> data +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +c4fef62ba1de9d91a977cfeec6632f19 + 10. hole -> data -> hole +0: [0..7]: extent +1: [8..39]: hole +2: [40..63]: extent +52af1bfcbf43f28af2328de32e0567e5 + 11. data -> hole -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..39]: extent +3: [40..47]: hole +4: [48..63]: extent +e3a8d52acc4d91a8ed19d7b6f4f26a71 + 12. unwritten -> data -> unwritten +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +52af1bfcbf43f28af2328de32e0567e5 + 13. data -> unwritten -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +2b22165f4a24a2c36fd05ef00b41df88 + 14. data -> hole @ EOF +0: [0..23]: extent +1: [24..39]: hole +2: [40..55]: extent +aa0f20d1edcdbce60d8ef82700ba30c3 + 15. data -> hole @ 0 +0: [0..15]: hole +1: [16..55]: extent +86c9d033be2761385c9cfa203c426bb2 diff --git a/tests/generic/group b/tests/generic/group index b847c47..544d422 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -33,6 +33,7 @@ 028 auto quick 029 auto quick prealloc 030 auto quick prealloc +031 auto quick prealloc 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:07:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 213A57FBC for ; 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charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+yv1ABYEBXbeu8QnOYnI+26EVbpw== Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrNIsWRmVeSWpSXmKPExsWyRsSkSPdr1JNgg0ufBCzefa6y2HLsHqPF sgebWSxmzrvDZrFn70kWi8u75rBZtPb8ZLdY1HeL0YHD49QiCY+mM0eZPVZf2Mro8X7fVTaP z5vkAlijuGxSUnMyy1KL9O0SuDIWXbvOVrBFs2LV41VMDYxrlboYOTkkBEwkJs06zARhi0lc uLeerYuRi0NIYCmjxMZzj9hhiiYf3ccEkVjEKLF35hGoqr+MEjMvL2PsYuTgYBPQlvizRRSk QUTAVWLe3e+MIDazwB1GiV9rjEFsYQF/iV8NN8G2sQioSkxsvs0MYvMKWEr87fvCAmELSvyY fI8FZCSzgI7E10kREGPkJTavecsMcY+CxI6zrxkhVulJHPp+gh2iRkRi34t3jCCnSQhcYpc4 cXsqK8QuAYlvkw+BzZQQkJXYdABqjqTEwRU3WCYwis1CsnkWwuZZSDbPQrJhASPLKkbR1ILk guKk9CJDveLE3OLSvHS95PzcTYzAiDz971nvDsbbB6wPMSYDbZ/ILCWanA+M6LySeENjMyML UxNTYyNzSzPShJXEeZMeJgUJCaQnlqRmp6YWpBbFF5XmpBYfYmTi4JRqYKw06Dly4Y7B5NfX Xc68OnPTQ/NYU3naYuv1LgIZa3t25W9lOBXxg6vl5q3Qo03nL0Y2T1dg+Zf7anPgQ62fd2U7 36Wbff4764Rptrqe+asD25dnfbd871e//Pbi1pktX6LsjZSEuF7JG75oXrt+WoeJaErArdb0 qWuYdGqKAioz7++892E51x4lluKMREMt5qLiRAB72YkU3gIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFIsWRmVeSWpSXmKPExsVy+t9jAd2vUU+CDU5/4LB497nKYsuxe4wW yx5sZrGYOe8Om8WevSdZLC7vmsNm0drzk91iUd8tRgcOj1OLJDyazhxl9lh9YSujx/t9V9k8 Pm+SC2CNamC0yUhNTEktUkjNS85PycxLt1XyDo53jjc1MzDUNbS0MFdSyEvMTbVVcvEJ0HXL zAE6RUmhLDGnFCgUkFhcrKRvh2lCaIibrgVMY4Sub0gQXI+RARpIWMOYsejadbaCLZoVqx6v YmpgXKvUxcjJISFgIjH56D4mCFtM4sK99WxdjFwcQgKLGCX2zjwC5fxllJh5eRljFyMHB5uA tsSfLaIgDSICrhLz7n5nBLGZBe4wSvxaYwxiCwv4S/xquAk2lEVAVWJi821mEJtXwFLib98X FghbUOLH5HssICOZBXQkvk6KgBgjL7F5zVtmiHsUJHacfc0IsUpP4tD3E+wQNSIS+168Y5zA KDALyaRZCJNmIZk0C0nHAkaWVYyiqQXJBcVJ6bmGesWJucWleel6yfm5mxjB8f5MagfjygaL Q4wCHIxKPLwC3Y+DhVgTy4orcw8xSnAwK4nw1nwGCvGmJFZWpRblxxeV5qQWH2I0BfpzIrOU aHI+MBXllcQbGpuYGVkamRtaGBmbK4nzHmi1DhQSSE8sSc1OTS1ILYLpY+LglGpg3Ky2R53/ nuqm6H19uUZuW77FzrW4L5h4YF/FVCHHeVKzru5tFbLYeVL8jPwshYikS+rrl8h3i79ekZk4 ParuDmPMMycpc46lLYfnKf1ex3pwY/D+f322h9I1TyjGH7JSLhdeahxtz/Vtf+s0v4g3roxd rFnOd/XFTij9694j+XDhPvPDf82WKbEUZyQaajEXFScCAInfvkcNAwAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout2.samsung.com[203.254.224.25] X-Barracuda-Start-Time: 1407474422 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 This testcase(032) tries to test various corner cases with delayed extents and pre-existing holes for finsert range functionality over different type of extents. Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- tests/generic/032 | 65 +++++++++++++++++++++++++++++++++++++++++ tests/generic/032.out | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++ tests/generic/group | 1 + 3 files changed, 146 insertions(+) create mode 100644 tests/generic/032 create mode 100644 tests/generic/032.out diff --git a/tests/generic/032 b/tests/generic/032 new file mode 100644 index 0000000..32798f3 --- /dev/null +++ b/tests/generic/032 @@ -0,0 +1,65 @@ +#! /bin/bash +# FS QA Test No. generic/032 +# +# Delayed allocation multi insert range tests +# This testcase is one of the 4 testcases which tries to +# test various corner cases for finsert range functionality over different +# type of extents. These tests are based on generic/255 test case. +# For the type of tests, check the description of _test_generic_punch +# in common/rc. +#----------------------------------------------------------------------- +# Copyright (c) 2013 Samsung Electronics. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! + +_cleanup() +{ + rm -f $tmp.* +} + +trap "_cleanup ; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +# we need to include common/punch to get defination fo filter functions +. ./common/rc +. ./common/filter +. ./common/punch + +# real QA test starts here +_supported_fs generic +_supported_os Linux + +_require_xfs_io_command "fpunch" +_require_xfs_io_command "falloc" +_require_xfs_io_command "fiemap" +_require_xfs_io_command "finsert" + +testfile=$TEST_DIR/$seq.$$ + +_test_generic_punch -d -k falloc fpunch finsert fiemap _filter_hole_fiemap $testfile +_check_test_fs + +status=0 +exit diff --git a/tests/generic/032.out b/tests/generic/032.out new file mode 100644 index 0000000..6d7acfd --- /dev/null +++ b/tests/generic/032.out @@ -0,0 +1,80 @@ +QA output created by 032 + 1. into a hole +cf845a781c107ec1346e849c9dd1b7e8 + 2. into allocated space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +64e72217eebcbdf31b1b058f9f5f476a + 3. into unwritten space +0: [0..7]: extent +1: [8..23]: hole +2: [24..55]: extent +22b7303d274481990b5401b6263effe0 + 4. hole -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..55]: extent +c4fef62ba1de9d91a977cfeec6632f19 + 5. hole -> unwritten +0: [0..7]: extent +1: [8..31]: hole +2: [32..55]: extent +1ca74f7572a0f4ab477fdbb5682e5f61 + 6. data -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..47]: hole +4: [48..55]: extent +be0f35d4292a20040766d87883b0abd1 + 7. data -> unwritten +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +bddb1f3895268acce30d516a99cb0f2f + 8. unwritten -> hole +0: [0..7]: extent +1: [8..23]: hole +2: [24..31]: extent +3: [32..39]: hole +4: [40..55]: extent +f8fc47adc45b7cf72f988b3ddf5bff64 + 9. unwritten -> data +0: [0..7]: extent +1: [8..23]: hole +2: [24..47]: extent +3: [48..55]: hole +c4fef62ba1de9d91a977cfeec6632f19 + 10. hole -> data -> hole +0: [0..7]: extent +1: [8..39]: hole +2: [40..63]: extent +52af1bfcbf43f28af2328de32e0567e5 + 11. data -> hole -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..39]: extent +3: [40..47]: hole +4: [48..63]: extent +e3a8d52acc4d91a8ed19d7b6f4f26a71 + 12. unwritten -> data -> unwritten +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +52af1bfcbf43f28af2328de32e0567e5 + 13. data -> unwritten -> data +0: [0..7]: extent +1: [8..31]: hole +2: [32..63]: extent +2b22165f4a24a2c36fd05ef00b41df88 + 14. data -> hole @ EOF +0: [0..23]: extent +1: [24..39]: hole +2: [40..55]: extent +aa0f20d1edcdbce60d8ef82700ba30c3 + 15. data -> hole @ 0 +0: [0..15]: hole +1: [16..55]: extent +86c9d033be2761385c9cfa203c426bb2 diff --git a/tests/generic/group b/tests/generic/group index 544d422..01d719b 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -34,6 +34,7 @@ 029 auto quick prealloc 030 auto quick prealloc 031 auto quick prealloc +032 auto quick prealloc 053 acl repair auto quick 062 attr udf auto quick 068 other auto freeze dangerous stress -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:07:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C3DA57FCA for ; 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Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- ltp/fsx.c | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 94 insertions(+), 2 deletions(-) diff --git a/ltp/fsx.c b/ltp/fsx.c index 47d3ee8..9dc1655 100644 --- a/ltp/fsx.c +++ b/ltp/fsx.c @@ -95,7 +95,8 @@ int logcount = 0; /* total ops */ #define OP_PUNCH_HOLE 6 #define OP_ZERO_RANGE 7 #define OP_COLLAPSE_RANGE 8 -#define OP_MAX_FULL 9 +#define OP_INSERT_RANGE 9 +#define OP_MAX_FULL 10 /* operation modifiers */ #define OP_CLOSEOPEN 100 @@ -145,6 +146,7 @@ int fallocate_calls = 1; /* -F flag disables */ int punch_hole_calls = 1; /* -H flag disables */ int zero_range_calls = 1; /* -z flag disables */ int collapse_range_calls = 1; /* -C flag disables */ +int insert_range_calls = 1; /* -i flag disables */ int mapped_reads = 1; /* -R flag disables it */ int fsxgoodfd = 0; int o_direct; /* -Z */ @@ -339,6 +341,14 @@ logdump(void) lp->args[0] + lp->args[1]) prt("\t******CCCC"); break; + case OP_INSERT_RANGE: + prt("INSERT 0x%x thru 0x%x\t(0x%x bytes)", + lp->args[0], lp->args[0] + lp->args[1] - 1, + lp->args[1]); + if (badoff >= lp->args[0] && badoff < + lp->args[0] + lp->args[1]) + prt("\t******CCCC"); + break; case OP_SKIPPED: prt("SKIPPED (no operation)"); break; @@ -1012,6 +1022,59 @@ do_collapse_range(unsigned offset, unsigned length) } #endif +#ifdef FALLOC_FL_INSERT_RANGE +void +do_insert_range(unsigned offset, unsigned length) +{ + unsigned end_offset; + int mode = FALLOC_FL_INSERT_RANGE; + + if (length == 0) { + if (!quiet && testcalls > simulatedopcount) + prt("skipping zero length insert range\n"); + log4(OP_SKIPPED, OP_INSERT_RANGE, offset, length); + return; + } + + if ((loff_t)offset >= file_size) { + if (!quiet && testcalls > simulatedopcount) + prt("skipping insert range behind EOF\n"); + log4(OP_SKIPPED, OP_INSERT_RANGE, offset, length); + return; + } + + log4(OP_INSERT_RANGE, offset, length, 0); + + if (testcalls <= simulatedopcount) + return; + + end_offset = offset + length; + if ((progressinterval && testcalls % progressinterval == 0) || + (debug && (monitorstart == -1 || monitorend == -1 || + end_offset <= monitorend))) { + prt("%lu insert\tfrom 0x%x to 0x%x, (0x%x bytes)\n", testcalls, + offset, offset+length, length); + } + if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) { + prt("insert range: %x to %x\n", offset, length); + prterr("do_insert_range: fallocate"); + report_failure(161); + } + + memmove(good_buf + end_offset, good_buf + offset, + file_size - offset); + memset(good_buf + offset, '\0', length); + file_size += length; +} + +#else +void +do_insert_range(unsigned offset, unsigned length) +{ + return; +} +#endif + #ifdef HAVE_LINUX_FALLOC_H /* fallocate is basically a no-op unless extending, then a lot like a truncate */ void @@ -1192,6 +1255,12 @@ test(void) goto out; } break; + case OP_INSERT_RANGE: + if (!insert_range_calls) { + log4(OP_SKIPPED, OP_INSERT_RANGE, offset, size); + goto out; + } + break; } switch (op) { @@ -1244,6 +1313,21 @@ test(void) } do_collapse_range(offset, size); break; + case OP_INSERT_RANGE: + TRIM_OFF_LEN(offset, size, (maxfilelen - 1) - file_size); + offset = offset & ~(block_size - 1); + size = size & ~(block_size - 1); + if (size == 0) { + log4(OP_SKIPPED, OP_INSERT_RANGE, offset, size); + goto out; + } + if (file_size + size > maxfilelen) { + log4(OP_SKIPPED, OP_INSERT_RANGE, offset, size); + goto out; + } + + do_insert_range(offset, size); + break; default: prterr("test: unknown operation"); report_failure(42); @@ -1307,6 +1391,9 @@ usage(void) #ifdef FALLOC_FL_COLLAPSE_RANGE " -C: Do not use collapse range calls\n" #endif +#ifdef FALLOC_FL_INSERT_RANGE +" -i: Do not use insert range calls\n" +#endif " -L: fsxLite - no file creations & no file size changes\n\ -N numops: total # operations to do (default infinity)\n\ -O: use oplen (see -o flag) for every op (default random)\n\ @@ -1493,7 +1580,7 @@ main(int argc, char **argv) setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */ - while ((ch = getopt(argc, argv, "b:c:dfl:m:no:p:qr:s:t:w:xyAD:FHzCLN:OP:RS:WZ")) + while ((ch = getopt(argc, argv, "b:c:dfl:m:no:p:qr:s:t:w:xyAD:FHzCiLN:OP:RS:WZ")) != EOF) switch (ch) { case 'b': @@ -1599,6 +1686,9 @@ main(int argc, char **argv) case 'C': collapse_range_calls = 0; break; + case 'i': + insert_range_calls = 0; + break; case 'L': lite = 1; break; @@ -1758,6 +1848,8 @@ main(int argc, char **argv) zero_range_calls = test_fallocate(FALLOC_FL_ZERO_RANGE); if (collapse_range_calls) collapse_range_calls = test_fallocate(FALLOC_FL_COLLAPSE_RANGE); + if (insert_range_calls) + insert_range_calls = test_fallocate(FALLOC_FL_INSERT_RANGE); while (numops == -1 || numops--) test(); -- 1.7.11-rc0 From namjae.jeon@samsung.com Fri Aug 8 00:07:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=HDRS_LCASE,T_MANY_HDRS_LCASE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 759E87FCE for ; Fri, 8 Aug 2014 00:07:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 46129304059 for ; 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Signed-off-by: Namjae Jeon Signed-off-by: Ashish Sangwan --- ltp/fsstress.c | 19 ++++++++++++++++--- src/global.h | 4 ++++ 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/ltp/fsstress.c b/ltp/fsstress.c index b56fe5c..aa3e0c3 100644 --- a/ltp/fsstress.c +++ b/ltp/fsstress.c @@ -72,6 +72,7 @@ typedef enum { OP_PUNCH, OP_ZERO, OP_COLLAPSE, + OP_INSERT, OP_READ, OP_READLINK, OP_RENAME, @@ -170,6 +171,7 @@ void mknod_f(int, long); void punch_f(int, long); void zero_f(int, long); void collapse_f(int, long); +void insert_f(int, long); void read_f(int, long); void readlink_f(int, long); void rename_f(int, long); @@ -209,6 +211,7 @@ opdesc_t ops[] = { { OP_PUNCH, "punch", punch_f, 1, 1 }, { OP_ZERO, "zero", zero_f, 1, 1 }, { OP_COLLAPSE, "collapse", collapse_f, 1, 1 }, + { OP_INSERT, "insert", insert_f, 1, 1 }, { OP_READ, "read", read_f, 1, 0 }, { OP_READLINK, "readlink", readlink_f, 1, 0 }, { OP_RENAME, "rename", rename_f, 2, 1 }, @@ -2176,6 +2179,7 @@ struct print_flags falloc_flags [] = { { FALLOC_FL_NO_HIDE_STALE, "NO_HIDE_STALE"}, { FALLOC_FL_COLLAPSE_RANGE, "COLLAPSE_RANGE"}, { FALLOC_FL_ZERO_RANGE, "ZERO_RANGE"}, + { FALLOC_FL_INSERT_RANGE, "INSERT_RANGE"}, { -1, NULL} }; @@ -2227,10 +2231,11 @@ do_fallocate(int opno, long r, int mode) off %= maxfsize; len = (off64_t)(random() % (1024 * 1024)); /* - * Collapse range requires off and len to be block aligned, make it - * more likely to be the case. + * Collapse/insert range requires off and len to be block aligned, + * make it more likely to be the case. */ - if ((mode & FALLOC_FL_COLLAPSE_RANGE) && (opno % 2)) { + if ((mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)) && + (opno % 2)) { off = ((off + stb.st_blksize - 1) & ~(stb.st_blksize - 1)); len = ((len + stb.st_blksize - 1) & ~(stb.st_blksize - 1)); } @@ -2656,6 +2661,14 @@ collapse_f(int opno, long r) } void +insert_f(int opno, long r) +{ +#ifdef HAVE_LINUX_FALLOC_H + do_fallocate(opno, r, FALLOC_FL_INSERT_RANGE); +#endif +} + +void read_f(int opno, long r) { char *buf; diff --git a/src/global.h b/src/global.h index 8180f66..f63246b 100644 --- a/src/global.h +++ b/src/global.h @@ -172,6 +172,10 @@ #define FALLOC_FL_ZERO_RANGE 0x10 #endif +#ifndef FALLOC_FL_INSERT_RANGE +#define FALLOC_FL_INSERT_RANGE 0x20 +#endif + #endif /* HAVE_LINUX_FALLOC_H */ #endif /* GLOBAL_H */ -- 1.7.11-rc0 From david@fromorbit.com Fri Aug 8 02:39:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9E5977F77 for ; Fri, 8 Aug 2014 02:39:38 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6D6F4304062 for ; Fri, 8 Aug 2014 00:39:38 -0700 (PDT) X-ASG-Debug-ID: 1407483575-04bdf0346974d30001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id S46kr5kgCcsxKJ12 for ; Fri, 08 Aug 2014 00:39:35 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AicRALR95FN5LDJ8PGdsb2JhbABagw2BKYInhQemSQEBAQEBAQamIAGBExcFAQEBATg2hAQBBTocIxAIAxgJJQ8FJQMHGhOIQcRmFxiFZIlQB4MvgRwBBI8DjSGYXCsv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 08 Aug 2014 17:09:34 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XFelv-0005MU-Ln; Fri, 08 Aug 2014 17:39:31 +1000 Date: Fri, 8 Aug 2014 17:39:31 +1000 From: Dave Chinner To: Greg KH Cc: Bill , xfs@oss.sgi.com Subject: Re: xfs hang in 3.14.15 Message-ID: <20140808073931.GD26465@dastard> X-ASG-Orig-Subj: Re: xfs hang in 3.14.15 References: <53E02495.4080208@sbcglobal.net> <20140805011800.GC20518@dastard> <53E372AA.4030304@sbcglobal.net> <20140807211052.GD17105@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140807211052.GD17105@kroah.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407483575 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8237 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 07, 2014 at 02:10:52PM -0700, Greg KH wrote: > On Thu, Aug 07, 2014 at 07:35:54AM -0500, Bill wrote: > > On 08/04/2014 08:18 PM, Dave Chinner wrote: > > >On Mon, Aug 04, 2014 at 07:25:57PM -0500, Bill wrote: > > >>Hi, > > >> > > >>I've been running a stress test on 3.14.15 and eventually my xfs > > >>filesystem hangs. Both 3.10.50 and 3.16 seem to work ok. > > >log space hang. > > > > > >110dc24 xfs: log vector rounding leaks log space > > > > > >Cheers, > > > > > >Dave. > > > > Thanks Dave, that helped. > > > > Greg, Please consider this for inclusion in 3.14.y. It fixed an xfs hang I > > had on 3.14.15 > > Dave, any objection for me to include it? Go ahead, Greg. FWIW, if you are doing another 3.15 release, it is needed there as well as this fix didn't go in until 3.16-rc1.... Thanks! -Dave. -- Dave Chinner david@fromorbit.com From felipemonteiro.carvalho@gmail.com Fri Aug 8 03:54:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1B1797F8D for ; Fri, 8 Aug 2014 03:54:25 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9CF26AC002 for ; Fri, 8 Aug 2014 01:54:21 -0700 (PDT) X-ASG-Debug-ID: 1407488058-04cbb00fa071d00001-NocioJ Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by cuda.sgi.com with ESMTP id R0dzCux9Qqk7TfiK (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 08 Aug 2014 01:54:19 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.192.169 Received: by mail-pd0-f169.google.com with SMTP id y10so6718668pdj.14 for ; Fri, 08 Aug 2014 01:54:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=MgHHxj9mpr0A7R4s9fEOAxEhZXZ4xh2/BTDl9pxZwE4=; b=06lHyS9ZmFolBxKadt5DAfkcQiD4ZPlY0FNvGkWoRw1Pbl0WOV/eMS3NNyq5E4YiDJ 3XvAlinTwkgUuVGhu68Zje0twHGIxPIHSHmlnAjvnTdiZ4orely5NCsk3YxMryg0GMyZ /s54vyjfc9XqBDckuGBgKkKEeA8UkNL8mgMzSZ5pB8RosgwtkP9XFfM/twXfkXnlVwYF QUVXOKdXr+kFADFzNun/iGdMwH0gcd9adlN+O2YHHu1MccpBa+YspNvcMIoOa9eoNybK UxOgeggAA/9zb/Q2WQfqlhJOquH7PNJn57nNWvW4J52E/WmGEfrbQGskE9w6BALSmW1h 6vGQ== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.70.140.75 with SMTP id re11mr23014007pdb.65.1407488058388; Fri, 08 Aug 2014 01:54:18 -0700 (PDT) Received: by 10.66.50.9 with HTTP; Fri, 8 Aug 2014 01:54:18 -0700 (PDT) In-Reply-To: <53E39117.4090200@sandeen.net> References: <53E39117.4090200@sandeen.net> Date: Fri, 8 Aug 2014 10:54:18 +0200 Message-ID: Subject: Re: Recovery of deleted files/directories From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Re: Recovery of deleted files/directories To: Eric Sandeen Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pd0-f169.google.com[209.85.192.169] X-Barracuda-Start-Time: 1407488059 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8239 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Aug 7, 2014 at 4:45 PM, Eric Sandeen wrote: > Do you have a link to the project you're working on? Is it an open > source tool? At the moment its only local in my computer, I'm first trying to get it to work and afterwards think about what to do with it... > There's another tool out there already called "xfs_irecover" which > looks for any inode anywhere on disk, and tries to copy back out any > data that it points to, deleted or not. It could use some love. Nice! So indeed it's possible =) From what I could understand it looks like that it recovers only file, not really directories, and it seams to suppose that the files have format extent, so I suppose that it won't work with very small files (with local data in the inode) and neither will work in files with format btree. Still, it should be able to recover most files I guess that local and btree formats are less commonly found. -- Felipe Monteiro de Carvalho From edithi0iochou@yahoo.co.jp Fri Aug 8 06:46:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.0 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLYTO, HTML_MESSAGE,T_DKIM_INVALID,T_HK_NAME_FM_DR autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id AC5017F82 for ; Fri, 8 Aug 2014 06:46:29 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7D2E6304059 for ; Fri, 8 Aug 2014 04:46:29 -0700 (PDT) X-ASG-Debug-ID: 1407498383-04bdf034677d1a0001-NocioJ Received: from web101217.mail.kks.yahoo.co.jp (web101217.mail.kks.yahoo.co.jp [183.79.100.221]) by cuda.sgi.com with SMTP id YK1noRdJTVq7zf0y for ; Fri, 08 Aug 2014 04:46:24 -0700 (PDT) X-Barracuda-Envelope-From: edithi0iochou@yahoo.co.jp X-Barracuda-Apparent-Source-IP: 183.79.100.221 Received: (qmail 59958 invoked by uid 60001); 8 Aug 2014 11:46:22 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.co.jp; s=yj20110701; t=1407498382; bh=s+cd+x8Nx85Dv6bkIv+LPlt7B5rXADfpkwSnZSOWnQw=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:X-YMail-JAS:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=Io9jMdgXBxx1CKCo0hcnwT2JhypvQ8HSiJAy8X+E/9ldaCLMH+su/V+/0yF6uFvntUY1EaqTmPN/KrnSBikhQ/bci7jXcW5ypV6TRIULa4YunN4B97KBzyutyPqMVly7XCMCFPyVqWqbAuJfKcr+JFThZpKqqz4t9dwR9YBaax4= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=yj20110701; d=yahoo.co.jp; h=Message-ID:X-YMail-OSG:Received:X-Mailer:X-YMail-JAS:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=UbOSHDUAdonVoagLo4IbaauVZJwd1u/vYXzyANOsw3xtK2VH2W4hpiaq+psSeH11XTYoy33ppRrwef0t3K5wwWtaFHNr8RqQ1K4tKoNaTeswpGzPprastcfAe3jJ/BqTY7cz1C2XnJqBrFJitcXWzndmc7QiqtKSbvAH0vP3zck=; Message-ID: <427527.55176.qm@web101217.mail.kks.yahoo.co.jp> X-YMail-OSG: uy7x3vsVM1n8iVJlQL4iHjZmX9h0hCuLmvuC7VQItoytuzaihSdz5imsLfWWlk.U9X2b2fA2qRtTsgYw1Jnf_SPggEv6fuy2..anw6cscMpZBPEuve8uzdjx1vdDMvYBCOl1wncM1jYPEk1jYdYedAH18nADOdHki.XH4qcEJgdI7QwP_isCocRwWinQ1nyfYv6rSsczaGZRp7Lo3nkyI22QEDUrKJLTuPWBTlJ45p0xFXze2Bc8ECQIB8x7rTV4Qohu5ToX6Q3264gRu7aAp30PsKnyiYNA9EIJbpPfNEWD4SWuAPyC1bvYpPhyRBDGm8Lzd6KRu0o2AFEVeSeZIToKvjPlGnTfjTyqLmNzZ0KEROaJHnsc6ake5renxSJNTe68TAmhEPlkkw1nF4bBw72djk3cnhzv7Txb3ZC.BJGhr1Xgg11looQ1m6cViPaAUpaqYIE97RK.U_VI93m8Wjj2DJCznbhp9vwyRgN0urNvXIEU1_fqNxsw9b9WrfKgxizvTwUZPXVNp5Dad5eAMxDk7gITgWHkzq6gwzPZ_I5BxnIND_tgAHg28ccXxaPzBcoF5c3spoL.PcVkWrt61NRlD4o292Yl14l2ELsUbfqMYSnR9ByyAZ_ggv28QYDEDDrjrymY6OFmZoKfZVDJMu.ni8ttxfVup0dkg7elqoBx4geGYEStf6PYiQM2aA-- Received: from [41.189.42.86] by web101217.mail.kks.yahoo.co.jp via HTTP; Fri, 08 Aug 2014 20:46:21 JST X-Mailer: YahooMailWebService/0.8.111_55 X-YMail-JAS: WtCfOnsVM1nxFuDqG_1ry5Ee1zl399AD7yB6y3Qf0LRfBAJLTLBkKdQTwzmtDzD28lKVcABBi19X2_MUt_SdzPVO9mkA7igbZQ8De8kgQjzcRbm1A8BOstPp5Dz6PpC_nyl4 Date: Fri, 8 Aug 2014 20:46:21 +0900 (JST) From: Dr Geoffrrey Abdoulaye Reply-To: Dr Geoffrrey Abdoulaye Subject: Good day and how are you today To: undisclosed recipients: ; X-ASG-Orig-Subj: Good day and how are you today MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-662168773-1407498381=:55176" X-Barracuda-Connect: web101217.mail.kks.yahoo.co.jp[183.79.100.221] X-Barracuda-Start-Time: 1407498384 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: -0.10 X-Barracuda-Spam-Status: No, SCORE=-0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=ADVANCE_FEE_1, DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE, VALIDYAHOOJP X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8241 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message -0.10 VALIDYAHOOJP This mail is valid yahoo.co.jp mail. 0.00 ADVANCE_FEE_1 Appears to be advance fee fraud (Nigerian 419) --0-662168773-1407498381=:55176 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Attn:Dear Friend,=0A=A0=0AGood day and how are=0Ayou today?=0A=A0=0AListen = carefully for=0Athe information, As courtesy demands, I am Dr Geoffrrey =A0= Abdoulaye The Operations Manager In Ecowas=0Aoffice in African There is an = information I think might interest you. 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--0-662168773-1407498381=:55176-- From debbugs@buxtehude.debian.org Fri Aug 8 07:24:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=3.0 required=5.0 tests=TVD_SUBJ_NUM_OBFU_MINFP autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 449127F72 for ; Fri, 8 Aug 2014 07:24:15 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 32637304053 for ; Fri, 8 Aug 2014 05:24:12 -0700 (PDT) X-ASG-Debug-ID: 1407500649-04cbb00fa079ec0001-NocioJ Received: from buxtehude.debian.org (buxtehude.debian.org [140.211.166.26]) by cuda.sgi.com with ESMTP id WLNykdwBt6THNzLE (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Fri, 08 Aug 2014 05:24:10 -0700 (PDT) X-Barracuda-Envelope-From: debbugs@buxtehude.debian.org X-Barracuda-Apparent-Source-IP: 140.211.166.26 Received: from debbugs by buxtehude.debian.org with local (Exim 4.80) (envelope-from ) id 1XFjDK-00083R-OM; Fri, 08 Aug 2014 12:24:06 +0000 X-Loop: owner@bugs.debian.org Subject: Bug#757455: please run dh_autoreconf or manually update m4/libtool.m4 for ppc64el Reply-To: Matthias Klose , 757455@bugs.debian.org X-ASG-Orig-Subj: Bug#757455: please run dh_autoreconf or manually update m4/libtool.m4 for ppc64el Resent-From: Matthias Klose Resent-To: debian-bugs-dist@lists.debian.org Resent-Cc: XFS Development Team X-Loop: owner@bugs.debian.org Resent-Date: Fri, 08 Aug 2014 12:24:01 +0000 Resent-Message-ID: X-Debian-PR-Message: report 757455 X-Debian-PR-Package: src:xfsprogs X-Debian-PR-Keywords: X-Debian-PR-Source: xfsprogs Received: via spool by submit@bugs.debian.org id=B.140750047430208 (code B); Fri, 08 Aug 2014 12:24:01 +0000 Received: (at submit) by bugs.debian.org; 8 Aug 2014 12:21:14 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by buxtehude.debian.org with esmtp (Exim 4.80) (envelope-from ) id 1XFjAY-0007r0-3e for submit@bugs.debian.org; Fri, 08 Aug 2014 12:21:14 +0000 Received: from dslb-088-073-116-129.088.073.pools.vodafone-ip.de ([88.73.116.129] helo=[192.168.42.220]) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1XFjAU-00048T-HI for submit@bugs.debian.org; Fri, 08 Aug 2014 12:21:10 +0000 Message-ID: <53E4C0A5.8060704@debian.org> Date: Fri, 08 Aug 2014 14:20:53 +0200 From: Matthias Klose User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Debian Bug Tracking System Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Delivered-To: submit@bugs.debian.org Resent-Sender: Debian BTS X-Barracuda-Connect: buxtehude.debian.org[140.211.166.26] X-Barracuda-Start-Time: 1407500649 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA_TO_FROM_DOMAIN_MATCH X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8242 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 BSF_SC0_SA_TO_FROM_DOMAIN_MATCH Sender Domain Matches Recipient Domain Package: src:xfsprogs Version: 3.2.1 trying to use dh_autoreconf: autoreconf -f -i libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `.'. libtoolize: copying file `./ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'. libtoolize: copying file `m4/libtool.m4' libtoolize: copying file `m4/ltoptions.m4' libtoolize: copying file `m4/ltsugar.m4' libtoolize: copying file `m4/ltversion.m4' libtoolize: copying file `m4/lt~obsolete.m4' libtoolize: Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am. autoheader: warning: missing template: HAVE_UMODE_T autoheader: Use AC_DEFINE([HAVE_UMODE_T], [], [Description]) autoheader: warning: missing template: HAVE___PSINT_T autoheader: warning: missing template: HAVE___PSUNSIGNED_T autoheader: warning: missing template: HAVE___U32 autoreconf: /usr/bin/autoheader failed with exit status: 1 please fix this and use dh_autoreconf, or update libtool.m4 manually as in http://launchpadlibrarian.net/181798228/xfsprogs_3.1.9ubuntu2_3.2.1ubuntu1.diff.gz From prvs=32979cee0f=clm@fb.com Fri Aug 8 09:35:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 28A927F74 for ; 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s=facebook; bh=pTuG6SnM/znip3JPIfY9vmcVuMVYaRvIijEOKiDNuOk=; b=IACqUU5LgKuo7Oj+f+wP14gzY6/nN/J9wWjTUI9783T17zaSN5TTfK6WVBlq32FU2sCF pPxLtEjCg8LIxi80R7Y7t93HB43uuYZM9zCo0mZtaJyey3dXXRICV3wSP+kbPG6BOCNe GRnkRZk7dncoN+/dbWFJrWGe/81Q3BayTDw= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1nmhyqt7w5-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Fri, 08 Aug 2014 07:35:42 -0700 Received: from [172.23.2.80] (192.168.57.29) by mail.thefacebook.com (192.168.16.21) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 8 Aug 2014 07:35:40 -0700 Message-ID: <53E4E03A.7050101@fb.com> Date: Fri, 8 Aug 2014 10:35:38 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: , Dave Chinner , Eric Sandeen Subject: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT X-Enigmail-Version: 1.6 X-ASG-Orig-Subj: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.57.29] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-08_04:2014-08-08,2014-08-08,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=2.38886133097083e-11 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=8 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408080174 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1407508549 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by leaving the page cache alone during DIO reads. We discovered this when our buffered IO program for distributing database indexes was finding zero filled blocks. I think writes are broken too, but I'll leave that for a separate patch because I don't fully understand what XFS needs to happen during a DIO write. Test program: /* * gcc -Wall -o read-race read-race.c * ./read-race filename */ #define _XOPEN_SOURCE 600 #include #include #include #include #include #include #include #include #include #ifndef O_DIRECT #define O_DIRECT 00040000 #endif #define READ_SIZE 512 #define BUF_SIZE 1024 * 1024 static void usage(char *name) { fprintf(stderr, "usage: %s filename\n", name); exit(1); } /* return 1 if the buffer is full of zeros */ static int all_zeros(char *buf, int sz) { int i; for (i = 0; i < sz; i++) { if (*buf++) return 0; } return 1; } static void run_test(char *filename, char *buf, int direct) { int fd; int ret; struct timeval start; struct timeval now; fd = open(filename, O_RDONLY | direct); if (fd < 0) { perror("open"); exit(1); } /* * seek to a 512b aligned offset in the page and then do a * read. Check the read for zeros, and if we're buffered * use FADV_DONTNEED to drop the page cache. repeat for 15 seconds */ gettimeofday(&start, NULL); while (1) { ret = lseek(fd, 5120, SEEK_SET); if (ret < 0) { perror("lseek"); exit(1); } if (!direct) { ret = posix_fadvise(fd, 0, 8192, POSIX_FADV_DONTNEED); if (ret) { perror("fadvise"); exit(1); } } ret = read(fd, buf, READ_SIZE); if (ret < READ_SIZE) { fprintf(stderr, "invalid read\n"); exit(1); } if (all_zeros(buf, READ_SIZE)) { fprintf(stderr, "error: found zero range direct: %d\n", direct ? 1 : 0); exit(255); } gettimeofday(&now, NULL); if (now.tv_sec - start.tv_sec > 15) exit(0); } } int main(int ac, char **av) { int ret; int fd; char *filename; char *buf; int pagesize = sysconf(_SC_PAGESIZE); pid_t buffered_pid = 0; pid_t direct_pid = 0; pid_t wait_pid; int status = 0; int test_failure = 0; if (ac != 2) usage(av[0]); else filename = av[1]; ret = posix_memalign((void **)&buf, pagesize, BUF_SIZE); if (ret) { perror("posix_memalign"); exit(1); } /* step one, create our test file and fill with non-zero */ fd = open(filename, O_WRONLY | O_CREAT, 0700); if (fd < 0) { perror("open for writing"); exit(1); } memset(buf, 1, BUF_SIZE); ret = write(fd, buf, BUF_SIZE); if (ret != BUF_SIZE) { fprintf(stderr, "failed to fill the test file\n"); exit(1); } close(fd); /* start the buffered reader */ buffered_pid = fork(); if (buffered_pid < 0) { perror("fork"); exit(1); } else if (buffered_pid == 0) { run_test(filename, buf, 0); exit(0); } /* start the direct reader */ direct_pid = fork(); if (direct_pid < 0) { perror("fork"); goto cleanup; } else if (direct_pid == 0) { run_test(filename, buf, O_DIRECT); exit(0); } /* wait for buffered to finish */ wait_pid = waitpid(buffered_pid, &status, 0); if (wait_pid < 0) { perror("waitpid buffered"); goto cleanup; } if (WIFEXITED(status)) { int ret = WEXITSTATUS(status); printf("buffered exits with %d\n", ret); if (ret) { buffered_pid = 0; test_failure = ret; goto cleanup; } } else { test_failure = 1; } /* wait for direct to finish */ wait_pid = waitpid(direct_pid, &status, 0); if (wait_pid < 0) { perror("waitpid direct"); goto cleanup; } if (WIFEXITED(status)) { int ret = WEXITSTATUS(status); printf("direct exits with %d\n", ret); test_failure |= ret; } else { test_failure |= 1; } exit(test_failure); cleanup: if (direct_pid > 0) kill(direct_pid, SIGTERM); if (buffered_pid > 0) kill(buffered_pid, SIGTERM); exit(test_failure); } Signed-off-by: Chris Mason cc: stable@vger.kernel.org diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 1f66779..8d25d98 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -295,7 +295,11 @@ xfs_file_read_iter( xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); return ret; } - truncate_pagecache_range(VFS_I(ip), pos, -1); + + /* we don't remove any pages here. A direct read + * does not invalidate any contents of the page + * cache + */ } xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); } From prvs=32979cee0f=clm@fb.com Fri Aug 8 10:18:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9EAFB7F73 for ; Fri, 8 Aug 2014 10:18:02 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7DAE130404E for ; Fri, 8 Aug 2014 08:17:59 -0700 (PDT) X-ASG-Debug-ID: 1407511078-04cb6c3f6e786c0001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by cuda.sgi.com with ESMTP id LUukCEMFX3aNZ2Yc for ; Fri, 08 Aug 2014 08:17:58 -0700 (PDT) X-Barracuda-Envelope-From: prvs=32979cee0f=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.145.42 X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] Received: from pps.filterd (m0004348 [127.0.0.1]) by m0004348.ppops.net (8.14.5/8.14.5) with SMTP id s78FDsBX017041; Fri, 8 Aug 2014 08:17:51 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=QBt6hboSoUHwKLrqvRZStwiW2wdIG7Ay7jvbqu5NinI=; b=iC0LdbvZJD59lLA9IXomuZIYrpFerc77M/sTQkW4qFRFMM2KSsuDM4P/YG7WshOgM4Gq F9B19XdInMeW7tgMdOVvr7CA1HH0ABI5cmW1Dw6Hey8w/JWATr/7hmGm7ae+6WnFc9ec eWMO8zjPoLZ5xF4W3G8nTpnkvaBnO4b67NU= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by m0004348.ppops.net with ESMTP id 1nmhyt18s9-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Fri, 08 Aug 2014 08:17:51 -0700 Received: from [172.23.2.80] (192.168.57.29) by mail.thefacebook.com (192.168.16.22) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 8 Aug 2014 08:17:49 -0700 Message-ID: <53E4EA1C.6030009@fb.com> Date: Fri, 8 Aug 2014 11:17:48 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: , Dave Chinner , Eric Sandeen Subject: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT In-Reply-To: <53E4E03A.7050101@fb.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.57.29] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-08_04:2014-08-08,2014-08-08,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=3.36192185201867e-12 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=8 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=9058 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408080183 X-FB-Internal: deliver X-Barracuda-Connect: mx0a-00082601.pphosted.com[67.231.145.42] X-Barracuda-Start-Time: 1407511078 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/08/2014 10:35 AM, Chris Mason wrote: > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who only > invalidate pages during DIO writes. > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial ranges > in the page. This means a DIO read can zero out part of the page cache > page, and it is possible the page will stay in cache. > > buffered reads will find an up to date page with zeros instead of the > data actually on disk. > > This patch fixes things by leaving the page cache alone during DIO > reads. > > We discovered this when our buffered IO program for distributing > database indexes was finding zero filled blocks. I think writes > are broken too, but I'll leave that for a separate patch because I don't > fully understand what XFS needs to happen during a DIO write. I stuck a cc: stable@vger.kernel.org after my sob, but then inserted a giant test program. Just realized the cc might get lost...sorry I wasn't trying to sneak it in. I've been trying to figure out why this bug doesn't show up in our 3.2 kernels but does show up now. Today xfs does this: truncate_pagecache_range(VFS_I(ip), pos, -1); But in 3.2 we did this: ret = -xfs_flushinval_pages(ip, (iocb->ki_pos & PAGE_CACHE_MASK), -1, FI_REMAPF_LOCKED); Since we've done pos & PAGE_CACHE_MASK, the 3.2 code never sent a partial offset. So it never zero'd partial pages. > > Signed-off-by: Chris Mason > cc: stable@vger.kernel.org > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 1f66779..8d25d98 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -295,7 +295,11 @@ xfs_file_read_iter( > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > } > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + > + /* we don't remove any pages here. A direct read > + * does not invalidate any contents of the page > + * cache > + */ > } > xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > } > From prvs=32979cee0f=clm@fb.com Fri Aug 8 11:05:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D79B57F59 for ; Fri, 8 Aug 2014 11:05:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 58B09AC004 for ; Fri, 8 Aug 2014 09:05:01 -0700 (PDT) X-ASG-Debug-ID: 1407513897-04cb6c3f6e7b810001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id OOtgEeCKuiWncMlt for ; Fri, 08 Aug 2014 09:04:58 -0700 (PDT) X-Barracuda-Envelope-From: prvs=32979cee0f=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] Received: from pps.filterd (m0004003 [127.0.0.1]) by mx0b-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s78G43AT024676; Fri, 8 Aug 2014 09:04:57 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=hkfURDh/IGyzlHrhjsWVmtZq9IcA67p9amu+5Y7ZtiU=; b=S0GrJ4uaeEngGlIhFpZvgEFiJPSieD78u4SiffEIG/XTLdNE3X9gmtVk+fONLfTYfiwx c2k1x8HUERI3CWM/ou3BGcl0jPN6q5MNpn4UI6efzTxQD2fW3nx2PVQGPHnab6wMN1RB FE/CMCW5IOO41v0+yj3spr2tYMi6K6bMvpY= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1nmkjcj51e-6 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Fri, 08 Aug 2014 09:04:56 -0700 Received: from [172.23.2.80] (192.168.57.29) by mail.thefacebook.com (192.168.16.21) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 8 Aug 2014 09:04:42 -0700 Message-ID: <53E4F518.9030107@fb.com> Date: Fri, 8 Aug 2014 12:04:40 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: , Dave Chinner , Eric Sandeen Subject: [PATCH RFC] xfs: use invalidate_inode_pages2_range for DIO writes References: <53E4E03A.7050101@fb.com> X-ASG-Orig-Subj: [PATCH RFC] xfs: use invalidate_inode_pages2_range for DIO writes In-Reply-To: <53E4E03A.7050101@fb.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.57.29] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-08_04:2014-08-08,2014-08-08,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=1.0296763441886e-12 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=8 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408080191 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1407513898 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs is using truncate_pagecache_range to invalidate the page cache during DIO writes. The other filesystems are calling invalidate_inode_pages2_range truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO write can zero out part of the page cache page, and it is possible the page will stay in cache. This one is an RFC because it is untested and because I don't understand how XFS is dealing with pages the truncate was unable to clear away. I'm not able to actually trigger zeros by mixing DIO writes with buffered reads. Signed-off-by: Chris Mason diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 8d25d98..c30c112 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -638,7 +638,10 @@ xfs_file_dio_aio_write( pos, -1); if (ret) goto out; - truncate_pagecache_range(VFS_I(ip), pos, -1); + + /* what do we do if we can't invalidate the pages? */ + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); } /* From bfoster@redhat.com Fri Aug 8 13:49:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CB9707F6F for ; Fri, 8 Aug 2014 13:49:30 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4C31DAC002 for ; Fri, 8 Aug 2014 11:49:30 -0700 (PDT) X-ASG-Debug-ID: 1407523768-04cbb0508c09fd0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 1t5QGxvbSbuBCxTy (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 08 Aug 2014 11:49:28 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s78InRe3015114 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 8 Aug 2014 14:49:28 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s78InRtX029446 for ; Fri, 8 Aug 2014 14:49:27 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 610C312577D; Fri, 8 Aug 2014 14:49:26 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Date: Fri, 8 Aug 2014 14:49:26 -0400 X-ASG-Orig-Subj: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Message-Id: <1407523766-62233-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1407523766-62233-1-git-send-email-bfoster@redhat.com> References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407523768 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A file collapse stress test workload reproduces collapse failures mid-operation due to changes in the inode fork extent count across extent shift cycles. xfs_collapse_file_space() currently calls xfs_bmap_shift_extents() to shift one extent at a time per transaction. The extent index is used to track the next extent to shift after each iteration. A concurrent fsx and fsstress workload reproduces a scenario where the extent count changes during this sequence, causing the 'current_ext' index to become inaccurate and possibly skip shifting an extent. The likely result of this behavior is the subsequent shift attempt will not find a hole in the area of the skipped extent and fail, leaving the file in a partially collapsed state. This occurs because the ilock is released and acquired across each transaction and each individual extent shift. Tracepoint output shows that once the ilock is released after an extent shift, a pending blocking writeback (e.g., sync) can acquire the lock and proceed before the next extent is shifted down. If the writeback converts part of a delayed allocation earlier in the file, for example, it can insert a new extent into the map. Tracing confirms a call to xfs_bmap_add_extent_delay_real() in this particular instance. To prevent this scenario, hold the ilock across the entire extent shift loop in xfs_collapse_file_space(). Signed-off-by: Brian Foster --- fs/xfs/xfs_bmap_util.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 2f1e30d..96eb97b 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1474,6 +1474,8 @@ xfs_collapse_file_space( if (error) return error; + xfs_ilock(ip, XFS_ILOCK_EXCL); + while (!error && !done) { tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); /* @@ -1489,7 +1491,6 @@ xfs_collapse_file_space( break; } - xfs_ilock(ip, XFS_ILOCK_EXCL); error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot, ip->i_gdquot, ip->i_pdquot, XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, @@ -1517,9 +1518,9 @@ xfs_collapse_file_space( goto out; error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); - xfs_iunlock(ip, XFS_ILOCK_EXCL); } + xfs_iunlock(ip, XFS_ILOCK_EXCL); return error; out: -- 1.8.3.1 From bfoster@redhat.com Fri Aug 8 13:49:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7212C7F77 for ; Fri, 8 Aug 2014 13:49:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 51B74304032 for ; Fri, 8 Aug 2014 11:49:34 -0700 (PDT) X-ASG-Debug-ID: 1407523768-04bdf06ef80a8d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id KsdcCZlK7IC8N2R8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 08 Aug 2014 11:49:29 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s78InR3o017678 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 8 Aug 2014 14:49:28 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s78InRZU019225 for ; Fri, 8 Aug 2014 14:49:27 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 4985B12577C; Fri, 8 Aug 2014 14:49:26 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 0/2] xfs: for-next file collapse bug fixes Date: Fri, 8 Aug 2014 14:49:24 -0400 X-ASG-Orig-Subj: [PATCH 0/2] xfs: for-next file collapse bug fixes Message-Id: <1407523766-62233-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407523769 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, I've seen collapse range fall over during some recent stress testing. I'm running fsx and 16 fsstress threads in parallel to reproduce. Note that the fsstress workload doesn't need to be on the same fs (I suspect a sync() is a trigger). These patches are what has fallen out so far... The first patch stems from the fact that the error caused an fs shutdown that appeared to be unnecessary. I was initially going to skip the inode log on any error, but on closer inspection it seems like we expect to abort/shutdown if something has in fact been changed, so this modifies the code to reduce that shutdown window. The second patch deals with the actual collapse failure by fixing up the locking. Note that I still reproduced at least one collapse failure even with these fixes, so there could be more at play here with the implementation: XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 5535 of file fs/xfs/libxfs/xfs_bmap.c. Caller xfs_collapse_file_space+0x1af/0x280 [xfs] This took significantly longer to reproduce and I don't yet have a feel for how reproducible it is in general. In the meantime, these two seemed relatively straightforward and incremental... Brian Brian Foster (2): xfs: don't log inode unless extent shift makes extent modifications xfs: hole the inode lock across a full file collapse fs/xfs/libxfs/xfs_bmap.c | 18 ++++++++++-------- fs/xfs/xfs_bmap_util.c | 5 +++-- 2 files changed, 13 insertions(+), 10 deletions(-) -- 1.8.3.1 From bfoster@redhat.com Fri Aug 8 13:49:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AC6277F77 for ; Fri, 8 Aug 2014 13:49:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7DB5A8F8066 for ; Fri, 8 Aug 2014 11:49:34 -0700 (PDT) X-ASG-Debug-ID: 1407523769-04bdf06ef70a8d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id DBjLlWT11hsGLBzD (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 08 Aug 2014 11:49:29 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s78InR9m007657 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 8 Aug 2014 14:49:28 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s78InRCF014088 for ; Fri, 8 Aug 2014 14:49:27 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 58AF812346F; Fri, 8 Aug 2014 14:49:26 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 1/2] xfs: don't log inode unless extent shift makes extent modifications Date: Fri, 8 Aug 2014 14:49:25 -0400 X-ASG-Orig-Subj: [PATCH 1/2] xfs: don't log inode unless extent shift makes extent modifications Message-Id: <1407523766-62233-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1407523766-62233-1-git-send-email-bfoster@redhat.com> References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407523769 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The file collapse mechanism uses xfs_bmap_shift_extents() to collapse all subsequent extents down into the specified, previously punched out, region. This function performs some validation, such as whether a sufficient hole exists in the target region of the collapse, then shifts the remaining exents downward. The exit path of the function currently logs the inode unconditionally. While we must log the inode (and abort) if an error occurs and the transaction is dirty, the initial validation paths can generate errors before the transaction has been dirtied. This creates an unnecessary filesystem shutdown scenario, as the caller will cancel a transaction that has been marked dirty. Modify xfs_bmap_shift_extents() to OR the logflags bits as modifications are made to the inode bmap. Only log the inode in the exit path if logflags has been set. This ensures we only have to cancel a dirty transaction if modifications have been made and prevents an unnecessary filesystem shutdown otherwise. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index de2d26d..86df952 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5424,7 +5424,7 @@ xfs_bmap_shift_extents( struct xfs_bmap_free *flist, int num_exts) { - struct xfs_btree_cur *cur; + struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; struct xfs_bmbt_irec got; struct xfs_bmbt_irec left; @@ -5435,7 +5435,7 @@ xfs_bmap_shift_extents( int error = 0; int i; int whichfork = XFS_DATA_FORK; - int logflags; + int logflags = 0; xfs_filblks_t blockcount = 0; int total_extents; @@ -5478,16 +5478,11 @@ xfs_bmap_shift_extents( } } - /* We are going to change core inode */ - logflags = XFS_ILOG_CORE; if (ifp->if_flags & XFS_IFBROOT) { cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstblock; cur->bc_private.b.flist = flist; cur->bc_private.b.flags = 0; - } else { - cur = NULL; - logflags |= XFS_ILOG_DEXT; } /* @@ -5545,11 +5540,14 @@ xfs_bmap_shift_extents( blockcount = left.br_blockcount + got.br_blockcount; xfs_iext_remove(ip, *current_ext, 1, 0); + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_btree_delete(cur, &i); if (error) goto del_cursor; XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } else { + logflags |= XFS_ILOG_DEXT; } XFS_IFORK_NEXT_SET(ip, whichfork, XFS_IFORK_NEXTENTS(ip, whichfork) - 1); @@ -5575,6 +5573,7 @@ xfs_bmap_shift_extents( got.br_startoff = startoff; } + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, @@ -5582,6 +5581,8 @@ xfs_bmap_shift_extents( got.br_state); if (error) goto del_cursor; + } else { + logflags |= XFS_ILOG_DEXT; } (*current_ext)++; @@ -5597,6 +5598,7 @@ del_cursor: xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); - xfs_trans_log_inode(tp, ip, logflags); + if (logflags) + xfs_trans_log_inode(tp, ip, logflags); return error; } -- 1.8.3.1 From fanael4@gmail.com Fri Aug 8 14:23:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8EBB57F77 for ; Fri, 8 Aug 2014 14:23:52 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7CBA530406A for ; Fri, 8 Aug 2014 12:23:49 -0700 (PDT) X-ASG-Debug-ID: 1407525827-04cb6c4c940b420001-NocioJ Received: from mail-qa0-f67.google.com (mail-qa0-f67.google.com [209.85.216.67]) by cuda.sgi.com with ESMTP id CPWxSanClXJ0cmma (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 08 Aug 2014 12:23:47 -0700 (PDT) X-Barracuda-Envelope-From: fanael4@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.216.67 X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.67] Received: by mail-qa0-f67.google.com with SMTP id v10so1793179qac.10 for ; Fri, 08 Aug 2014 12:23:46 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.67] X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.67] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=G8s1/bdAU66ehRTncXxWIOZJpYn00+nF2eF3zNinmIQ=; b=CEBnaWdfn6nd0vhTaKTIPcqLZyD39LFfxiZESpCwQWyRw25WngRHeQVcqRg52yrtYR oSHSCVAG5uGs5H2xp5qq/XZmLUcuP9ZF6o03noZPfYgPb4suIZqFMod3L6r5daHSaY1r G+vKaD0zvFyUiWDX6iV5LTn8LmAbEX/TzlyB6ihR+0xGaNXDvE0pnDWyhUxBcb0rtEr1 vXt35ArKGIbrfM4maWy2tMGRyji0M2C6EWdwNscRqebmLwqrFNmoXfjb6EcJrYcMc30D bi2qI4zd7W0OXyfhFUGvumCKPFvXAfuz2BS0VhgNZb8PzzvojNuU2ECnsizsmYhYAk0i G/Mg== MIME-Version: 1.0 X-Received: by 10.224.88.198 with SMTP id b6mr22728902qam.97.1407525826548; Fri, 08 Aug 2014 12:23:46 -0700 (PDT) Received: by 10.224.182.200 with HTTP; Fri, 8 Aug 2014 12:23:46 -0700 (PDT) Date: Fri, 8 Aug 2014 21:23:46 +0200 Message-ID: Subject: Verifier fixes backported to stable kernels? From: Fanael Linithien X-ASG-Orig-Subj: Verifier fixes backported to stable kernels? To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-qa0-f67.google.com[209.85.216.67] X-Barracuda-Start-Time: 1407525827 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8250 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Will the verifier fixes get backported to 3.15 and/or 3.16, or do we have to wait for 3.17? I don't want to wait for 3.17. My / has just been eaten by this bug, and I'm reluctant to reinstall until it's fixed. From bfoster@redhat.com Fri Aug 8 15:39:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E17D17F73 for ; Fri, 8 Aug 2014 15:39:46 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id A3783304059 for ; Fri, 8 Aug 2014 13:39:43 -0700 (PDT) X-ASG-Debug-ID: 1407530381-04bdf06ef7137c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id H3n6n0N95JEaQbG6 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 08 Aug 2014 13:39:42 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s78KdUsT030033 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 8 Aug 2014 16:39:31 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s78KdUZY005631; Fri, 8 Aug 2014 16:39:30 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 018AD12577C; Fri, 8 Aug 2014 16:39:28 -0400 (EDT) Date: Fri, 8 Aug 2014 16:39:28 -0400 From: Brian Foster To: Chris Mason Cc: xfs@oss.sgi.com, Dave Chinner , Eric Sandeen Subject: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140808203928.GA64279@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E4E03A.7050101@fb.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407530381 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 08, 2014 at 10:35:38AM -0400, Chris Mason wrote: > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who only > invalidate pages during DIO writes. > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial ranges > in the page. This means a DIO read can zero out part of the page cache > page, and it is possible the page will stay in cache. > > buffered reads will find an up to date page with zeros instead of the > data actually on disk. > > This patch fixes things by leaving the page cache alone during DIO > reads. > > We discovered this when our buffered IO program for distributing > database indexes was finding zero filled blocks. I think writes > are broken too, but I'll leave that for a separate patch because I don't > fully understand what XFS needs to happen during a DIO write. > > Test program: > ... > > Signed-off-by: Chris Mason > cc: stable@vger.kernel.org > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 1f66779..8d25d98 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -295,7 +295,11 @@ xfs_file_read_iter( > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > } > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + > + /* we don't remove any pages here. A direct read > + * does not invalidate any contents of the page > + * cache > + */ > } That seems sane to me at first glance. I don't know why we would need to completely kill the cache on a dio read. I'm not a fan of the additional comment though. We should probably just fix up the existing comment instead. It also seems like we might be able to kill the XFS_IOLOCK_EXCL dance here if the truncate goes away.. Dave? FWIW, I had to go back to the following commit to see where this originates from: commit 9cea236492ebabb9545564eb039aa0f477a05c96 Author: Nathan Scott Date: Fri Mar 17 17:26:41 2006 +1100 [XFS] Flush and invalidate dirty pages at the start of a direct read also, else we can hit a delalloc-extents-via-direct-io BUG. SGI-PV: 949916 SGI-Modid: xfs-linux-melb:xfs-kern:25483a Signed-off-by: Nathan Scott ... That adds a VOP_FLUSHINVAL_PAGES() call that looks like it's some kind of portability API. I would expect the flush to deal with any delalloc conversion issues vs. the invalidation, so perhaps the invalidation part is a historical artifact of the api. Then again, there's also a straight 'flushpages' call so perhaps there's more to it than that. Brian > xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > } > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Fri Aug 8 19:36:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 620057F89 for ; Fri, 8 Aug 2014 19:36:49 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D6518AC003 for ; Fri, 8 Aug 2014 17:36:45 -0700 (PDT) X-ASG-Debug-ID: 1407544602-04cbb0508b1ce00001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 7ihn50gHa5qb8Jbk for ; Fri, 08 Aug 2014 17:36:43 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqwHAA1s5VN5LDJ8/2dsb2JhbABagw2BKYInq3ABAQEGpiABgQ4Xd4QDAQEEAScTHCMFCwgDDgoJJQ8FJQMKFxOIOgfGBxcYhWSJUAeDL4EcBZwoi38EiHaDaSsv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 09 Aug 2014 10:06:41 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XFue4-00084i-Ib; Sat, 09 Aug 2014 10:36:28 +1000 Date: Sat, 9 Aug 2014 10:36:28 +1000 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140809003628.GE26465@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E4E03A.7050101@fb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407544603 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8256 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 08, 2014 at 10:35:38AM -0400, Chris Mason wrote: > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who only > invalidate pages during DIO writes. Historical oddity thanks to wrapper functions that were kept way longer than they should have been. > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial ranges > in the page. This means a DIO read can zero out part of the page cache > page, and it is possible the page will stay in cache. commit fb59581 ("xfs: remove xfs_flushinval_pages"). also removed the offset masks that seem to be the issue here. Classic case of a regression caused by removing 10+ year old code that was not clearly documented and didn't appear important. The real question is why isn't fsx and other corner case data integrity tools tripping over this? > buffered reads will find an up to date page with zeros instead of the > data actually on disk. > > This patch fixes things by leaving the page cache alone during DIO > reads. > > We discovered this when our buffered IO program for distributing > database indexes was finding zero filled blocks. I think writes > are broken too, but I'll leave that for a separate patch because I don't > fully understand what XFS needs to happen during a DIO write. > > Test program: Encapsulate it in a generic xfstest, please, and send it to fstests@vger.kernel.org. ... > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 1f66779..8d25d98 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -295,7 +295,11 @@ xfs_file_read_iter( > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > } > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + > + /* we don't remove any pages here. A direct read > + * does not invalidate any contents of the page > + * cache > + */ I guarantee you that there are applications out there that rely on the implicit invalidation behaviour for performance. There are also applications out that rely on it for correctness, too, because the OS is not the only source of data in the filesystem the OS has mounted. Besides, XFS's direct IO semantics are far saner, more predictable and hence are more widely useful than the generic code. As such, we're not going to regress semantics that have been unchanged over 20 years just to match whatever insanity the generic Linux code does right now. Go on, call me a deranged monkey on some serious mind-controlling substances. I don't care. :) I think the fix should probably just be: - truncate_pagecache_range(VFS_I(ip), pos, -1); + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 8 19:49:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A06287F8C for ; Fri, 8 Aug 2014 19:49:13 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 49BD4AC003 for ; Fri, 8 Aug 2014 17:49:13 -0700 (PDT) X-ASG-Debug-ID: 1407545350-04bdf06ef71dfb0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id kGtUTAvS8lbwuKbR for ; Fri, 08 Aug 2014 17:49:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqsHAJNv5VN5LDJ8/2dsb2JhbABagw2BKYInq3ABAQEGpiABgQ4Xd4QEAQUnExwjEAgDDgoJJQ8FJQMhE4hBxX4XGIVkiVAHgy+BHAWcKIwDiHaDaSsv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 09 Aug 2014 10:19:09 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XFuq9-000865-7i; Sat, 09 Aug 2014 10:48:57 +1000 Date: Sat, 9 Aug 2014 10:48:57 +1000 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: [PATCH RFC] xfs: use invalidate_inode_pages2_range for DIO writes Message-ID: <20140809004857.GF26465@dastard> X-ASG-Orig-Subj: Re: [PATCH RFC] xfs: use invalidate_inode_pages2_range for DIO writes References: <53E4E03A.7050101@fb.com> <53E4F518.9030107@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E4F518.9030107@fb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407545350 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8256 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 08, 2014 at 12:04:40PM -0400, Chris Mason wrote: > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO writes. The other filesystems are calling > invalidate_inode_pages2_range > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial ranges > in the page. This means a DIO write can zero out part of the page cache > page, and it is possible the page will stay in cache. > > This one is an RFC because it is untested and because I don't understand > how XFS is dealing with pages the truncate was unable to clear away. > I'm not able to actually trigger zeros by mixing DIO writes with > buffered reads. > > Signed-off-by: Chris Mason > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 8d25d98..c30c112 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -638,7 +638,10 @@ xfs_file_dio_aio_write( > pos, -1); > if (ret) > goto out; > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + > + /* what do we do if we can't invalidate the pages? */ > + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > + pos >> PAGE_CACHE_SHIFT, -1); I don't think it can on XFS. We're holding the XFS_IOLOCK_EXCL, so no other syscall based IO can dirty pages, all the pages are clean, try_to_free_buffers() will never fail, no-one can run a truncate operation concurently, and so on. The only thing that could cause an issue is a racing mmap page fault dirtying the page. But if you are mixing mmap+direct IO on the same file, you lost a long time ago so that's nothing new at all. So, I'd just do: ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, pos >> PAGE_CACHE_SHIFT, -1); WARN_ON_ONCE(ret); ret = 0; That way we'll find out if it does ever fail, and if it does we can take it from there. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 8 19:54:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D8D787F90 for ; Fri, 8 Aug 2014 19:54:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id C7AE7304053 for ; Fri, 8 Aug 2014 17:54:20 -0700 (PDT) X-ASG-Debug-ID: 1407545657-04cb6c4c93192f0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id G629DE1ezTHJLiSc for ; Fri, 08 Aug 2014 17:54:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkYLAH9w5VN5LDJ8/2dsb2JhbABagw2BKYInq3ABAQEGphsDAgGBDhd3hAMBAQQBOhwjBQsIAxgJJQ8FJQMhE4g6B8YBFxiFZIlQB4RLBZwolHmDaSsv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 09 Aug 2014 10:24:17 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XFuv6-00086p-Hb; Sat, 09 Aug 2014 10:54:04 +1000 Date: Sat, 9 Aug 2014 10:54:04 +1000 From: Dave Chinner To: Fanael Linithien Cc: xfs@oss.sgi.com Subject: Re: Verifier fixes backported to stable kernels? Message-ID: <20140809005404.GG26465@dastard> X-ASG-Orig-Subj: Re: Verifier fixes backported to stable kernels? References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407545657 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8257 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 08, 2014 at 09:23:46PM +0200, Fanael Linithien wrote: > Will the verifier fixes get backported to 3.15 and/or 3.16, or do we > have to wait for 3.17? What fixes are you talking about? List of commits, please, noting whether the commit already has a "cc: " in it or not. > I don't want to wait for 3.17. My / has just been eaten by this bug, > and I'm reluctant to reinstall until it's fixed. Patch your kernel with the fixes you've identified are necessary, then - it can take some time for fixes to propagate through the stable process.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From prvs=32982dafea=clm@fb.com Fri Aug 8 21:33:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 19B177F90 for ; Fri, 8 Aug 2014 21:33:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 08364304062 for ; Fri, 8 Aug 2014 19:33:10 -0700 (PDT) X-ASG-Debug-ID: 1407551586-04cbb0508c1fb60001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id H0oOoX8mYvYxihHl for ; Fri, 08 Aug 2014 19:33:07 -0700 (PDT) X-Barracuda-Envelope-From: prvs=32982dafea=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] Received: from pps.filterd (m0004077 [127.0.0.1]) by mx0b-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s792X6hr030706; Fri, 8 Aug 2014 19:33:06 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : cc : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=MLDjoQ2ubixNNONj5UnSCe4VtTgdZ238DZExFJp6QGQ=; b=CQ6bYynu7hughsn1n2CwdjJLTRi5nMugZTMCxtNdyCPWZSnEiZUzfL+ZBNsr2Hbs5w9N r/Vk6+A+fpQQyFeD2sNzS5RnnEHYV86QUiHYtZCWLCdEINsFgC7+BFiOmg6ZZ9CMZnsO WBhMyX1JOlNnJqW/Fe0uBRp6GxCmR8AkdAQ= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1nn2vhsqg6-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Fri, 08 Aug 2014 19:33:05 -0700 Received: from [172.23.2.80] (192.168.16.4) by mail.thefacebook.com (192.168.16.24) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 8 Aug 2014 19:33:00 -0700 Message-ID: <53E5885A.9090302@fb.com> Date: Fri, 8 Aug 2014 22:32:58 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: , Eric Sandeen Subject: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <20140809003628.GE26465@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT In-Reply-To: <20140809003628.GE26465@dastard> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.16.4] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-08_06:2014-08-08,2014-08-08,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=7.98772165078176e-09 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408090031 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1407551587 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/08/2014 08:36 PM, Dave Chinner wrote: > On Fri, Aug 08, 2014 at 10:35:38AM -0400, Chris Mason wrote: >> >> xfs is using truncate_pagecache_range to invalidate the page cache >> during DIO reads. This is different from the other filesystems who only >> invalidate pages during DIO writes. > > Historical oddity thanks to wrapper functions that were kept way > longer than they should have been. > >> truncate_pagecache_range is meant to be used when we are freeing the >> underlying data structs from disk, so it will zero any partial ranges >> in the page. This means a DIO read can zero out part of the page cache >> page, and it is possible the page will stay in cache. > > commit fb59581 ("xfs: remove xfs_flushinval_pages"). also removed > the offset masks that seem to be the issue here. Classic case of a > regression caused by removing 10+ year old code that was not clearly > documented and didn't appear important. > > The real question is why isn't fsx and other corner case data > integrity tools tripping over this? > My question too. Maybe not mixing buffered/direct for partial pages? Does fsx only do 4K O_DIRECT? >> buffered reads will find an up to date page with zeros instead of the >> data actually on disk. >> >> This patch fixes things by leaving the page cache alone during DIO >> reads. >> >> We discovered this when our buffered IO program for distributing >> database indexes was finding zero filled blocks. I think writes >> are broken too, but I'll leave that for a separate patch because I don't >> fully understand what XFS needs to happen during a DIO write. >> >> Test program: > > Encapsulate it in a generic xfstest, please, and send it to > fstests@vger.kernel.org. This test prog was looking for races, which we really don't have. It can be much shorter to just look for the improper zeroing from a single thread. I can send it either way. [ ... ] > I guarantee you that there are applications out there that rely on > the implicit invalidation behaviour for performance. There are also > applications out that rely on it for correctness, too, because the > OS is not the only source of data in the filesystem the OS has > mounted. > > Besides, XFS's direct IO semantics are far saner, more predictable > and hence are more widely useful than the generic code. As such, > we're not going to regress semantics that have been unchanged > over 20 years just to match whatever insanity the generic Linux code > does right now. > > Go on, call me a deranged monkey on some serious mind-controlling > substances. I don't care. :) The deranged part is invalidating pos -> -1 on a huge file because of a single 512b direct read. But, if you mix O_DIRECT and buffered you get what the monkeys give you and like it. > > I think the fix should probably just be: > > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > + pos >> PAGE_CACHE_SHIFT, -1); > I'll retest with this in the morning. The invalidate is basically what we had before with the masking & PAGE_CACHE_SHIFT. -chris From prvs=32982dafea=clm@fb.com Fri Aug 8 21:42:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id ED7B27F96 for ; Fri, 8 Aug 2014 21:42:33 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DC4B98F8066 for ; Fri, 8 Aug 2014 19:42:30 -0700 (PDT) X-ASG-Debug-ID: 1407552149-04cb6c4c951bea0001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by cuda.sgi.com with ESMTP id 8cGT9e64toE96I5D for ; Fri, 08 Aug 2014 19:42:29 -0700 (PDT) X-Barracuda-Envelope-From: prvs=32982dafea=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.145.42 X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] Received: from pps.filterd (m0044012 [127.0.0.1]) by mx0a-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s792gSf9001021; Fri, 8 Aug 2014 19:42:28 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : cc : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=8i4EnNDDLu7wGyRDGuaFTJ1aB/6htg2XGg9Uxz9G1+g=; b=D03PRK935TTkPLo71Exsnxm81j8Iql46La4z3P8FiBxsBLK/Nw18BC/jEtB8wN0aJRcB Ld9yAEvz+HJDBMCgI6juSof09museidKqi02hIfxPkUFYAyWcNVpp9PnAdDmrxt4pvG9 MhJ2BvVWThYkT24Z0phGhIO+31rAzW3pfa4= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0a-00082601.pphosted.com with ESMTP id 1nmx7h9fkw-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Fri, 08 Aug 2014 19:42:28 -0700 Received: from [172.23.2.80] (192.168.16.4) by mail.thefacebook.com (192.168.16.21) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 8 Aug 2014 19:42:26 -0700 Message-ID: <53E58A90.7060709@fb.com> Date: Fri, 8 Aug 2014 22:42:24 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: , Eric Sandeen Subject: Re: [PATCH RFC] xfs: use invalidate_inode_pages2_range for DIO writes References: <53E4E03A.7050101@fb.com> <53E4F518.9030107@fb.com> <20140809004857.GF26465@dastard> X-ASG-Orig-Subj: Re: [PATCH RFC] xfs: use invalidate_inode_pages2_range for DIO writes In-Reply-To: <20140809004857.GF26465@dastard> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.16.4] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-08_06:2014-08-08,2014-08-08,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=7.98772165078176e-09 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=2 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408090033 X-FB-Internal: deliver X-Barracuda-Connect: mx0a-00082601.pphosted.com[67.231.145.42] X-Barracuda-Start-Time: 1407552149 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/08/2014 08:48 PM, Dave Chinner wrote: > On Fri, Aug 08, 2014 at 12:04:40PM -0400, Chris Mason wrote: >> >> xfs is using truncate_pagecache_range to invalidate the page cache >> during DIO writes. The other filesystems are calling >> invalidate_inode_pages2_range >> >> truncate_pagecache_range is meant to be used when we are freeing the >> underlying data structs from disk, so it will zero any partial ranges >> in the page. This means a DIO write can zero out part of the page cache >> page, and it is possible the page will stay in cache. >> >> This one is an RFC because it is untested and because I don't understand >> how XFS is dealing with pages the truncate was unable to clear away. >> I'm not able to actually trigger zeros by mixing DIO writes with >> buffered reads. >> >> Signed-off-by: Chris Mason >> >> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c >> index 8d25d98..c30c112 100644 >> --- a/fs/xfs/xfs_file.c >> +++ b/fs/xfs/xfs_file.c >> @@ -638,7 +638,10 @@ xfs_file_dio_aio_write( >> pos, -1); >> if (ret) >> goto out; >> - truncate_pagecache_range(VFS_I(ip), pos, -1); >> + >> + /* what do we do if we can't invalidate the pages? */ >> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, >> + pos >> PAGE_CACHE_SHIFT, -1); > > I don't think it can on XFS. > > We're holding the XFS_IOLOCK_EXCL, so no other syscall based IO can > dirty pages, all the pages are clean, try_to_free_buffers() will > never fail, no-one can run a truncate operation concurently, and > so on. > > So, I'd just do: > > ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > pos >> PAGE_CACHE_SHIFT, -1); > WARN_ON_ONCE(ret); > ret = 0; > Since pos is page aligned I agree this should be fine. I'll leave that one to you though, since I don't have a great test case for/against it. -chris From sandeen@redhat.com Fri Aug 8 22:19:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 303617F9D for ; Fri, 8 Aug 2014 22:19:16 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0ADCA304032 for ; Fri, 8 Aug 2014 20:19:15 -0700 (PDT) X-ASG-Debug-ID: 1407554354-04bdf06ef722a90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id UANNhpXGkf9lVYt8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 08 Aug 2014 20:19:14 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s793JAEq013767 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 8 Aug 2014 23:19:11 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s793J9nW004940 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Fri, 8 Aug 2014 23:19:10 -0400 Message-ID: <53E5932E.6@redhat.com> Date: Fri, 08 Aug 2014 22:19:10 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Chris Mason , Dave Chinner CC: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <20140809003628.GE26465@dastard> <53E5885A.9090302@fb.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT In-Reply-To: <53E5885A.9090302@fb.com> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407554354 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 8/8/14, 9:32 PM, Chris Mason wrote: >> Go on, call me a deranged monkey on some serious mind-controlling >> substances. I don't care. :) Insider / obscure quote achievement unlocked! > The deranged part is invalidating pos -> -1 on a huge file because of a > single 512b direct read. But, if you mix O_DIRECT and buffered you get > what the monkeys give you and like it. Agreed, I really scratch my head at that one... -Eric From david@fromorbit.com Fri Aug 8 23:17:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8361F7FA1 for ; Fri, 8 Aug 2014 23:17:14 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 12361AC002 for ; Fri, 8 Aug 2014 21:17:10 -0700 (PDT) X-ASG-Debug-ID: 1407557824-04cb6c4c941ec50001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id HIdGpHR11qaUIW0C for ; Fri, 08 Aug 2014 21:17:05 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApUIABeg5VN5LDJ8PGdsb2JhbABagw1SV4cvpl4BAQEBAQEGnlKHUAGBCxcFAQEBATg2hAMBAQQBJxMcIxAIAw4KCSUPBSUDBwMXE4g6B8U5FxiFZIlQB4RLBZU8hm6BWIopBIxkKy8 Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 09 Aug 2014 13:47:03 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XFy5U-0008T8-Ih; Sat, 09 Aug 2014 14:17:00 +1000 Date: Sat, 9 Aug 2014 14:17:00 +1000 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140809041700.GH26465@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <20140809003628.GE26465@dastard> <53E5885A.9090302@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E5885A.9090302@fb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407557824 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8260 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 08, 2014 at 10:32:58PM -0400, Chris Mason wrote: > > > On 08/08/2014 08:36 PM, Dave Chinner wrote: > > On Fri, Aug 08, 2014 at 10:35:38AM -0400, Chris Mason wrote: > >> > >> xfs is using truncate_pagecache_range to invalidate the page cache > >> during DIO reads. This is different from the other filesystems who only > >> invalidate pages during DIO writes. > > > > Historical oddity thanks to wrapper functions that were kept way > > longer than they should have been. > > > >> truncate_pagecache_range is meant to be used when we are freeing the > >> underlying data structs from disk, so it will zero any partial ranges > >> in the page. This means a DIO read can zero out part of the page cache > >> page, and it is possible the page will stay in cache. > > > > commit fb59581 ("xfs: remove xfs_flushinval_pages"). also removed > > the offset masks that seem to be the issue here. Classic case of a > > regression caused by removing 10+ year old code that was not clearly > > documented and didn't appear important. > > > > The real question is why isn't fsx and other corner case data > > integrity tools tripping over this? > > > > My question too. Maybe not mixing buffered/direct for partial pages? > Does fsx only do 4K O_DIRECT? No. xfstests::tests/generic/091 is supposed to cover this exact case. It runs fsx with direct IO aligned to sector boundaries amongst other things. $ ./lsqa.pl tests/generic/091 FS QA Test No. 091 fsx exercising direct IO -- sub-block sizes and concurrent buffered IO $ > > >> buffered reads will find an up to date page with zeros instead of the > >> data actually on disk. > >> > >> This patch fixes things by leaving the page cache alone during DIO > >> reads. > >> > >> We discovered this when our buffered IO program for distributing > >> database indexes was finding zero filled blocks. I think writes > >> are broken too, but I'll leave that for a separate patch because I don't > >> fully understand what XFS needs to happen during a DIO write. > >> > >> Test program: > > > > Encapsulate it in a generic xfstest, please, and send it to > > fstests@vger.kernel.org. > > This test prog was looking for races, which we really don't have. It > can be much shorter to just look for the improper zeroing from a single > thread. I can send it either way. Doesn't matter, as long as we have something that exercises this case.... > > Besides, XFS's direct IO semantics are far saner, more predictable > > and hence are more widely useful than the generic code. As such, > > we're not going to regress semantics that have been unchanged > > over 20 years just to match whatever insanity the generic Linux code > > does right now. > > > > Go on, call me a deranged monkey on some serious mind-controlling > > substances. I don't care. :) > > The deranged part is invalidating pos -> -1 on a huge file because of a > single 512b direct read. But, if you mix O_DIRECT and buffered you get > what the monkeys give you and like it. That's a historical artifact - it predates the range interfaces that Linux has grown over the years, and every time we've changed it to match teh I/O range subtle problems have arisen. THose are usually due to other bugs we knew nothing about at the time, but that's the way it goes... > > I think the fix should probably just be: > > > > - truncate_pagecache_range(VFS_I(ip), pos, -1); > > + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > > + pos >> PAGE_CACHE_SHIFT, -1); > > > > I'll retest with this in the morning. The invalidate is basically what > we had before with the masking & PAGE_CACHE_SHIFT. Yup. Thanks for finding these issuesi, Chris! Cheers, Dave. -- Dave Chinner david@fromorbit.com From prvs=32982dafea=clm@fb.com Sat Aug 9 07:57:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EF9357F89 for ; Sat, 9 Aug 2014 07:57:10 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id CEC838F8066 for ; Sat, 9 Aug 2014 05:57:07 -0700 (PDT) X-ASG-Debug-ID: 1407589026-04cbb0508c34240001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id 5s7okgtsuR1d979C for ; Sat, 09 Aug 2014 05:57:06 -0700 (PDT) X-Barracuda-Envelope-From: prvs=32982dafea=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] Received: from pps.filterd (m0004060 [127.0.0.1]) by mx0b-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s79CuNON012424; Sat, 9 Aug 2014 05:57:05 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=75hxKwQ5/n3j4J+3XG33qxOyNRPYxFr3huGp0daRMG0=; b=PuSuvS0leWl5zbOnp5uA26V2uRWevpzUyFjtYczWcoDHbvoEj6r8Z4KgR0IxM0wJXtms Q62XFQja2bxL8lHLQghAykoViuzkKoAvvKYcDu5im9KB3hgT1UNY78vyYN4sq9ekx4lb 4/aFJiX+7gwUUTSED0n6yg7oeVNdTRXpGp4= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1nn1nvu4du-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Sat, 09 Aug 2014 05:57:03 -0700 Received: from [172.23.2.80] (192.168.16.4) by mail.thefacebook.com (192.168.16.20) with Microsoft SMTP Server (TLS) id 14.3.195.1; Sat, 9 Aug 2014 05:57:01 -0700 Message-ID: <53E61A9C.4020807@fb.com> Date: Sat, 9 Aug 2014 08:57:00 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: , Dave Chinner , Eric Sandeen Subject: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> X-ASG-Orig-Subj: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT In-Reply-To: <53E4E03A.7050101@fb.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.16.4] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-09_01:2014-08-08,2014-08-09,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=1.07512548863653e-09 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=8 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408090169 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1407589026 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. Signed-off-by: Chris Mason cc: stable@vger.kernel.org --- fs/xfs/xfs_file.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 1f66779..023d575 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -295,7 +295,8 @@ xfs_file_read_iter( xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); return ret; } - truncate_pagecache_range(VFS_I(ip), pos, -1); + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); } xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); } -- 1.8.1 From DY.C@epagri.sc.gov.br Sat Aug 9 09:56:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=LOTS_OF_MONEY autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5B3D67F4E for ; Sat, 9 Aug 2014 09:56:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 35E19304053 for ; Sat, 9 Aug 2014 07:56:37 -0700 (PDT) X-ASG-Debug-ID: 1407596194-04cb6c4c942f440001-NocioJ Received: from smtp.epagri.sc.gov.br (smtp.epagri.sc.gov.br [200.18.9.19]) by cuda.sgi.com with ESMTP id SHEss3Xv3YMQsspn; Sat, 09 Aug 2014 07:56:35 -0700 (PDT) X-Barracuda-Envelope-From: DY.C@epagri.sc.gov.br X-Barracuda-Apparent-Source-IP: 200.18.9.19 Received: from imap.epagri.sc.gov.br (HELO pombo.epagri.sc.gov.br) ([10.20.5.14]) by smtp.epagri.sc.gov.br with ESMTP; 09 Aug 2014 11:51:30 -0300 Received: by pombo.epagri.sc.gov.br (Postfix, from userid 30) id E95002DFF66; Sat, 9 Aug 2014 11:47:51 -0300 (BRT) Received: from 156-208-255-158.static.edis.at (156-208-255-158.static.edis.at [158.255.208.156]) by webmail.epagri.sc.gov.br (Horde Framework) with HTTP; Sat, 09 Aug 2014 11:47:50 -0300 Message-ID: <20140809114750.19381wc79p8vnqfq@webmail.epagri.sc.gov.br> Date: Sat, 09 Aug 2014 11:47:50 -0300 From: "D.Y. 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From fanael4@gmail.com Sat Aug 9 10:55:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.2 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,MISSING_HEADERS,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E1D3E7F5E for ; Sat, 9 Aug 2014 10:55:27 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C14468F804B for ; Sat, 9 Aug 2014 08:55:24 -0700 (PDT) X-ASG-Debug-ID: 1407599719-04bdf06ef73d0c0001-NocioJ Received: from mail-qa0-f68.google.com (mail-qa0-f68.google.com [209.85.216.68]) by cuda.sgi.com with ESMTP id zppDK11tjsaV99Fg (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sat, 09 Aug 2014 08:55:20 -0700 (PDT) X-Barracuda-Envelope-From: fanael4@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.216.68 X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.68] Received: by mail-qa0-f68.google.com with SMTP id dc16so2033777qab.11 for ; Sat, 09 Aug 2014 08:55:19 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.68] X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.68] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=9X5LfzKbwmg/+XhmsEBL0M8GeEgHYjPkTSLr5FTQ5RU=; b=PXrlUf57DqzcmgfdUrojKrep/vCVy7uvG7eCFJrCrAAaTm33UcnAz8p97MuGAoracZ pojpC9mdY4ftb45Dyb7fsJ4+9dwaCUsl3RVeqqFlMY+1wDZ+eIyXeOePpFpEmhoymD4I IdvEQ+/caBAHTk7CTm4ZepnVRXwVIvSybukdnyPjMyvsSi9LgZrJ/5bKtRIxQU03VWW7 7LGfzqC08josnvgbSKl259XhBRCENgiNDLQ/m0lbUBMQTbkmaenT0o0XarOp/AG8jy7q 5cKnIECupHQRnBoMAYMguU9fjQDU0aI0/R8BzbQ/x9itMQ4qSw9aDTeqf4+ohpcH1Z5R DPeQ== MIME-Version: 1.0 X-Received: by 10.140.25.226 with SMTP id 89mr33093325qgt.62.1407599719257; Sat, 09 Aug 2014 08:55:19 -0700 (PDT) Received: by 10.224.182.200 with HTTP; Sat, 9 Aug 2014 08:55:19 -0700 (PDT) In-Reply-To: References: <20140809005404.GG26465@dastard> Date: Sat, 9 Aug 2014 17:55:19 +0200 Message-ID: Subject: Re: Verifier fixes backported to stable kernels? From: Fanael Linithien X-ASG-Orig-Subj: Re: Verifier fixes backported to stable kernels? Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-qa0-f68.google.com[209.85.216.68] X-Barracuda-Start-Time: 1407599719 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.21 X-Barracuda-Spam-Status: No, SCORE=1.21 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, MISSING_HEADERS X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8272 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 1.21 MISSING_HEADERS Missing To: header 2014-08-09 2:54 GMT+02:00 Dave Chinner : > What fixes are you talking about? List of commits, please, noting > whether the commit already has a "cc: " in > it or not. These are the commits: 400b9d88757c0bfbdfa97014e090ec40a31c1282 67dc288c21064b31a98a53dc64f6b9714b819fd6 (this is the only one with the cc) 5fd364fee81a7888af806e42ed8a91c845894f2d ad3714b82c631a34724da09a7daa53afcab952fa > Patch your kernel with the fixes you've identified are necessary, > then - it can take some time for fixes to propagate through the > stable process.... This is what I'm trying to avoid, out of sheer laziness. I suppose I'm going to have to do that if I want to have a working linux, though. From sandeen@sandeen.net Sat Aug 9 13:58:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=MIME_QP_LONG_LINE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B30B47F81 for ; Sat, 9 Aug 2014 13:58:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4FF65AC001 for ; Sat, 9 Aug 2014 11:58:50 -0700 (PDT) X-ASG-Debug-ID: 1407610727-04bdf06ef9426d0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id wgveUCamjTHWMVXX for ; Sat, 09 Aug 2014 11:58:47 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from [33.162.114.186] (unknown [172.56.33.209]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 6DD8A63D71ED; Sat, 9 Aug 2014 13:58:46 -0500 (CDT) References: <20140809005404.GG26465@dastard> Mime-Version: 1.0 (1.0) In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Message-Id: <8864B382-ABD4-484E-A1D1-C2CB96F46810@sandeen.net> Cc: "xfs@oss.sgi.com" X-Mailer: iPhone Mail (11D257) From: Eric Sandeen Subject: Re: Verifier fixes backported to stable kernels? Date: Sat, 9 Aug 2014 11:58:42 -0700 X-ASG-Orig-Subj: Re: Verifier fixes backported to stable kernels? To: Fanael Linithien X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407610727 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.82 X-Barracuda-Spam-Status: No, SCORE=0.82 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MIME_QP_LONG_LINE, MIME_QP_LONG_LINE_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8275 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 MIME_QP_LONG_LINE RAW: Quoted-printable line longer than 76 chars 0.82 MIME_QP_LONG_LINE_2 RAW: Quoted-printable line longer than 76 chars On Aug 9, 2014, at 8:55 AM, Fanael Linithien wrote: >=20 > 2014-08-09 2:54 GMT+02:00 Dave Chinner : >> What fixes are you talking about? List of commits, please, noting >> whether the commit already has a "cc: " in >> it or not. >=20 > These are the commits: >=20 > 400b9d88757c0bfbdfa97014e090ec40a31c1282 > 67dc288c21064b31a98a53dc64f6b9714b819fd6 (this is the only one with the cc= ) > 5fd364fee81a7888af806e42ed8a91c845894f2d > ad3714b82c631a34724da09a7daa53afcab952fa >=20 >> Patch your kernel with the fixes you've identified are necessary, >> then - it can take some time for fixes to propagate through the >> stable process.... >=20 > This is what I'm trying to avoid, out of sheer laziness. I suppose I'm > going to have to do that if I want to have a working linux, though. >=20 In what way did this "eat" your root fs? What happened? Also, are you usin= g a CRC-enabled filesystem? -Eric= From root@krios.tbi.univie.ac.at Sat Aug 9 23:25:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DBE307F80 for ; Sat, 9 Aug 2014 23:25:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BAA3D304043 for ; Sat, 9 Aug 2014 21:25:08 -0700 (PDT) X-ASG-Debug-ID: 1407644705-04bdf06ef64d350001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id jIPG8a4Q3h6lLFM9 for ; Sat, 09 Aug 2014 21:25:06 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id B7AF05EC03; Sun, 10 Aug 2014 06:25:02 +0200 (CEST) Delivered-To: root@krios.tbi.univie.ac.at Received: by krios.tbi.univie.ac.at (Postfix, from userid 0) id A68A35F484; Sun, 10 Aug 2014 06:25:02 +0200 (CEST) From: root@krios.tbi.univie.ac.at (Cron Daemon) To: root@krios.tbi.univie.ac.at Subject: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Content-Type: text/plain; charset=UTF-8 X-ASG-Orig-Subj: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: Message-Id: <20140810042502.A68A35F484@krios.tbi.univie.ac.at> Date: Sun, 10 Aug 2014 06:25:02 +0200 (CEST) X-Barracuda-Connect: krios.tbi.univie.ac.at[131.130.44.60] X-Barracuda-Start-Time: 1407644706 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA_TO_FROM_ADDR_MATCH, PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8284 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address /etc/cron.daily/logrotate: error: error opening /home/git/gitlab/log/application.log: Permission denied error: error opening /home/git/gitlab/log/githost.log: Permission denied error: error opening /home/git/gitlab/log/production.log: Permission denied error: error opening /home/git/gitlab/log/satellites.log: Permission denied error: error opening /home/git/gitlab/log/sidekiq.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stderr.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stdout.log: Permission denied error: error opening /home/git/gitlab-shell/gitlab-shell.log: Permission denied run-parts: /etc/cron.daily/logrotate exited with return code 1 From alex@zadarastorage.com Sun Aug 10 07:20:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E26F57F63 for ; 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Sun, 10 Aug 2014 05:20:50 -0700 (PDT) Received: by 10.194.15.232 with HTTP; Sun, 10 Aug 2014 05:20:50 -0700 (PDT) In-Reply-To: <20140806152042.GB39990@bfoster.bfoster> References: <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> Date: Sun, 10 Aug 2014 15:20:50 +0300 Message-ID: Subject: Re: use-after-free on log replay failure From: Alex Lyakas X-ASG-Orig-Subj: Re: use-after-free on log replay failure To: Brian Foster Cc: Dave Chinner , xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wg0-f41.google.com[74.125.82.41] X-Barracuda-Start-Time: 1407673252 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8292 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words Hi Brian, On Wed, Aug 6, 2014 at 6:20 PM, Brian Foster wrote: > On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: >> Hello Dave and Brian, >> >> Dave, I tried the patch you suggested, but it does not fix the issue. I did >> some further digging, and it appears that _xfs_buf_ioend(schedule=1) can be >> called from xfs_buf_iorequest(), which the patch fixes, but also from >> xfs_buf_bio_end_io() which is my case. I am reproducing the issue pretty >> easily. The flow that I have is like this: >> - xlog_recover() calls xlog_find_tail(). This works alright. > > What's the purpose of a sleep here? > >> - Now I add a small sleep before calling xlog_do_recover(), and meanwhile I >> instruct my block device to return ENOSPC for any WRITE from now on. >> >> What seems to happen is that several WRITE bios are submitted and they all >> fail. When they do, they reach xfs_buf_ioend() through a stack like this: >> >> Aug 6 15:23:07 dev kernel: [ 304.410528] [56]xfs*[xfs_buf_ioend:1056] >> XFS(dm-19): Scheduling xfs_buf_iodone_work on error >> Aug 6 15:23:07 dev kernel: [ 304.410534] Pid: 56, comm: kworker/u:1 >> Tainted: G W O 3.8.13-557-generic #1382000791 >> Aug 6 15:23:07 dev kernel: [ 304.410537] Call Trace: >> Aug 6 15:23:07 dev kernel: [ 304.410587] [] >> xfs_buf_ioend+0x1a4/0x1b0 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.410621] [] >> _xfs_buf_ioend+0x25/0x30 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.410643] [] >> xfs_buf_bio_end_io+0x3d/0x50 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.410652] [] >> bio_endio+0x1d/0x40 >> ... >> >> At this point, they are scheduled to run xlog_recover_iodone through >> xfslogd_workqueue. >> The first callback that gets called, calls xfs_do_force_shutdown in stack >> like this: >> >> Aug 6 15:23:07 dev kernel: [ 304.411791] XFS (dm-19): metadata I/O error: >> block 0x3780001 ("xlog_recover_iodone") error 28 numblks 1 >> Aug 6 15:23:07 dev kernel: [ 304.413493] XFS (dm-19): >> xfs_do_force_shutdown(0x1) called from line 377 of file >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = >> 0xffffffffa0526848 >> Aug 6 15:23:07 dev kernel: [ 304.413837] [] >> xfs_do_force_shutdown+0x40/0x180 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.413870] [] ? >> xlog_recover_iodone+0x48/0x70 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.413902] [] >> xlog_recover_iodone+0x48/0x70 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.413923] [] >> xfs_buf_iodone_work+0x4d/0xa0 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.413930] [] >> process_one_work+0x141/0x4a0 >> Aug 6 15:23:07 dev kernel: [ 304.413937] [] >> worker_thread+0x168/0x410 >> Aug 6 15:23:07 dev kernel: [ 304.413943] [] ? >> manage_workers+0x120/0x120 >> Aug 6 15:23:07 dev kernel: [ 304.413949] [] >> kthread+0xc0/0xd0 >> Aug 6 15:23:07 dev kernel: [ 304.413954] [] ? >> flush_kthread_worker+0xb0/0xb0 >> Aug 6 15:23:07 dev kernel: [ 304.413976] [] >> ret_from_fork+0x7c/0xb0 >> Aug 6 15:23:07 dev kernel: [ 304.413986] [] ? >> flush_kthread_worker+0xb0/0xb0 >> Aug 6 15:23:07 dev kernel: [ 304.413990] ---[ end trace 988d698520e1fa81 >> ]--- >> Aug 6 15:23:07 dev kernel: [ 304.414012] XFS (dm-19): I/O Error Detected. >> Shutting down filesystem >> Aug 6 15:23:07 dev kernel: [ 304.415936] XFS (dm-19): Please umount the >> filesystem and rectify the problem(s) >> >> But the rest of the callbacks also arrive: >> Aug 6 15:23:07 dev kernel: [ 304.417812] XFS (dm-19): metadata I/O error: >> block 0x3780002 ("xlog_recover_iodone") error 28 numblks 1 >> Aug 6 15:23:07 dev kernel: [ 304.420420] XFS (dm-19): >> xfs_do_force_shutdown(0x1) called from line 377 of file >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = >> 0xffffffffa0526848 >> Aug 6 15:23:07 dev kernel: [ 304.420427] XFS (dm-19): metadata I/O error: >> block 0x3780008 ("xlog_recover_iodone") error 28 numblks 8 >> Aug 6 15:23:07 dev kernel: [ 304.422708] XFS (dm-19): >> xfs_do_force_shutdown(0x1) called from line 377 of file >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = >> 0xffffffffa0526848 >> Aug 6 15:23:07 dev kernel: [ 304.422738] XFS (dm-19): metadata I/O error: >> block 0x3780010 ("xlog_recover_iodone") error 28 numblks 8 >> >> The mount sequence fails and goes back to the caller: >> Aug 6 15:23:07 dev kernel: [ 304.423438] XFS (dm-19): log mount/recovery >> failed: error 28 >> Aug 6 15:23:07 dev kernel: [ 304.423757] XFS (dm-19): log mount failed >> >> But there are still additional callbacks to deliver, which the mount >> sequence did not wait for! >> Aug 6 15:23:07 dev kernel: [ 304.425717] XFS ( @dR): >> xfs_do_force_shutdown(0x1) called from line 377 of file >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = >> 0xffffffffa0526848 >> Aug 6 15:23:07 dev kernel: [ 304.425723] XFS ( @dR): metadata I/O error: >> block 0x3780018 ("xlog_recover_iodone") error 28 numblks 8 >> Aug 6 15:23:07 dev kernel: [ 304.428239] XFS ( @dR): >> xfs_do_force_shutdown(0x1) called from line 377 of file >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = >> 0xffffffffa0526848 >> Aug 6 15:23:07 dev kernel: [ 304.428246] XFS ( @dR): metadata I/O error: >> block 0x37800a0 ("xlog_recover_iodone") error 28 numblks 16 >> >> Notice the junk that they are printing! Naturally, because xfs_mount >> structure has been kfreed. >> >> Finally the kernel crashes (instead of printing junk), because the xfs_mount >> structure is gone, but the callback tries to access it (printing the name): >> >> Aug 6 15:23:07 dev kernel: [ 304.430796] general protection fault: 0000 >> [#1] SMP >> Aug 6 15:23:07 dev kernel: [ 304.432035] Modules linked in: xfrm_user >> xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 iscsi_scst_tcp(O) >> scst_vdisk(O) scst(O) dm_zcache(O) dm_btrfs(O) xfs(O) btrfs(O) libcrc32c >> raid456(O) async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq >> async_tx raid1(O) md_mod deflate zlib_deflate ctr twofish_generic >> twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 >> twofish_common camellia_generic serpent_generic blowfish_generic >> blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic xcbc >> rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin kvm vfat >> fat ppdev psmouse microcode nfsd nfs_acl dm_multipath(O) serio_raw >> parport_pc nfsv4 dm_iostat(O) mac_hid i2c_piix4 auth_rpcgss nfs fscache >> lockd sunrpc lp parport floppy >> Aug 6 15:23:07 dev kernel: [ 304.432035] CPU 1 >> Aug 6 15:23:07 dev kernel: [ 304.432035] Pid: 133, comm: kworker/1:1H >> Tainted: G W O 3.8.13-557-generic #1382000791 Bochs Bochs >> Aug 6 15:23:07 dev kernel: [ 304.432035] RIP: 0010:[] >> [] strnlen+0xb/0x30 >> Aug 6 15:23:07 dev kernel: [ 304.432035] RSP: 0018:ffff880035461b08 >> EFLAGS: 00010086 >> Aug 6 15:23:07 dev kernel: [ 304.432035] RAX: 0000000000000000 RBX: >> ffffffff81e6a4e7 RCX: 0000000000000000 >> Aug 6 15:23:07 dev kernel: [ 304.432035] RDX: e4e8390a265c0000 RSI: >> ffffffffffffffff RDI: e4e8390a265c0000 >> Aug 6 15:23:07 dev kernel: [ 304.432035] RBP: ffff880035461b08 R08: >> 000000000000ffff R09: 000000000000ffff >> Aug 6 15:23:07 dev kernel: [ 304.432035] R10: 0000000000000000 R11: >> 00000000000004cd R12: e4e8390a265c0000 >> Aug 6 15:23:07 dev kernel: [ 304.432035] R13: ffffffff81e6a8c0 R14: >> 0000000000000000 R15: 000000000000ffff >> Aug 6 15:23:07 dev kernel: [ 304.432035] FS: 0000000000000000(0000) >> GS:ffff88007fc80000(0000) knlGS:0000000000000000 >> Aug 6 15:23:07 dev kernel: [ 304.432035] CS: 0010 DS: 0000 ES: 0000 CR0: >> 000000008005003b >> Aug 6 15:23:07 dev kernel: [ 304.432035] CR2: 00007fc902ffbfd8 CR3: >> 000000007702a000 CR4: 00000000000006e0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] DR0: 0000000000000000 DR1: >> 0000000000000000 DR2: 0000000000000000 >> Aug 6 15:23:07 dev kernel: [ 304.432035] DR3: 0000000000000000 DR6: >> 00000000ffff0ff0 DR7: 0000000000000400 >> Aug 6 15:23:07 dev kernel: [ 304.432035] Process kworker/1:1H (pid: 133, >> threadinfo ffff880035460000, task ffff880035412e00) >> Aug 6 15:23:07 dev kernel: [ 304.432035] Stack: >> Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461b48 >> ffffffff8133dd5e 0000000000000000 ffffffff81e6a4e7 >> Aug 6 15:23:07 dev kernel: [ 304.432035] ffffffffa0566cba >> ffff880035461c80 ffffffffa0566cba ffffffff81e6a8c0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461bc8 >> ffffffff8133ef59 ffff880035461bc8 ffffffff81c84040 >> Aug 6 15:23:07 dev kernel: [ 304.432035] Call Trace: >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> string.isra.4+0x3e/0xd0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> vsnprintf+0x219/0x640 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> vscnprintf+0x11/0x30 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> vprintk_emit+0xc1/0x490 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? >> vprintk_emit+0x170/0x490 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> printk+0x61/0x63 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> __xfs_printk+0x31/0x50 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> xfs_notice+0x53/0x60 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> xfs_do_force_shutdown+0xf5/0x180 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? >> xlog_recover_iodone+0x48/0x70 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> xlog_recover_iodone+0x48/0x70 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> xfs_buf_iodone_work+0x4d/0xa0 [xfs] >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> process_one_work+0x141/0x4a0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> worker_thread+0x168/0x410 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? >> manage_workers+0x120/0x120 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> kthread+0xc0/0xd0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? >> flush_kthread_worker+0xb0/0xb0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] >> ret_from_fork+0x7c/0xb0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? >> flush_kthread_worker+0xb0/0xb0 >> Aug 6 15:23:07 dev kernel: [ 304.432035] Code: 31 c0 80 3f 00 55 48 89 e5 >> 74 11 48 89 f8 66 90 48 83 c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 >> c0 48 85 f6 48 89 e5 74 23 <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83 ee >> 01 80 38 00 74 >> Aug 6 15:23:07 dev kernel: [ 304.432035] RIP [] >> strnlen+0xb/0x30 >> Aug 6 15:23:07 dev kernel: [ 304.432035] RSP >> >> >> So previously you said: "So, something is corrupting memory and stamping all >> over the XFS structures." and also "given you have a bunch of out of tree >> modules loaded (and some which are experiemental) suggests that you have a >> problem with your storage...". >> >> But I believe, my analysis shows that during the mount sequence XFS does not >> wait properly for all the bios to complete, before failing the mount >> sequence back to the caller. >> > > As an experiment, what about the following? Compile tested only and not > safe for general use. > > What might help more is to see if you can create a reproducer on a > recent, clean kernel. Perhaps a metadump of your reproducer fs combined > with whatever block device ENOSPC hack you're using would do it. > > Brian > > ---8<--- > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index cd7b8ca..fbcf524 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( > * case nothing will ever complete. It returns the I/O error code, if any, or > * 0 if there was no error. > */ > -int > -xfs_buf_iowait( > - xfs_buf_t *bp) > +static int > +__xfs_buf_iowait( > + struct xfs_buf *bp, > + bool skip_error) > { > trace_xfs_buf_iowait(bp, _RET_IP_); > > - if (!bp->b_error) > + if (skip_error || !bp->b_error) > wait_for_completion(&bp->b_iowait); > > trace_xfs_buf_iowait_done(bp, _RET_IP_); > return bp->b_error; > } > > +int > +xfs_buf_iowait( > + struct xfs_buf *bp) > +{ > + return __xfs_buf_iowait(bp, false); > +} > + > xfs_caddr_t > xfs_buf_offset( > xfs_buf_t *bp, > @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > list_del_init(&bp->b_list); > - error2 = xfs_buf_iowait(bp); > + error2 = __xfs_buf_iowait(bp, true); > xfs_buf_relse(bp); > if (!error) > error = error2; > > --- I think that this patch fixes the problem. I tried reproducing it like 30 times, and it doesn't happen with this patch. Dropping this patch reproduces the problem within 1 or 2 tries. Thanks! What are next steps? How to make it "safe for general use"? Thanks, Alex. > >> Thanks, >> Alex. >> >> >> >> -----Original Message----- From: Dave Chinner >> Sent: 05 August, 2014 2:07 AM >> To: Alex Lyakas >> Cc: xfs@oss.sgi.com >> Subject: Re: use-after-free on log replay failure >> >> On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: >> >Greetings, >> > >> >we had a log replay failure due to some errors that the underlying >> >block device returned: >> >[49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 >> >("xlog_recover_iodone") error 28 numblks 16 >> >[49133.802495] XFS (dm-95): log mount/recovery failed: error 28 >> >[49133.802644] XFS (dm-95): log mount failed >> >> #define ENOSPC 28 /* No space left on device */ >> >> You're getting an ENOSPC as a metadata IO error during log recovery? >> Thin provisioning problem, perhaps, and the error is occurring on >> submission rather than completion? If so: >> >> 8d6c121 xfs: fix buffer use after free on IO error >> >> Cheers, >> >> Dave. >> -- >> Dave Chinner >> david@fromorbit.com >> From 36pLnUw0JA1MGvJE38yF81MMN17v36.x97I0D9DD.D13.x97@trix.bounces.google.com Sun Aug 10 10:42:40 2014 Return-Path: <36pLnUw0JA1MGvJE38yF81MMN17v36.x97I0D9DD.D13.x97@trix.bounces.google.com> X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.5 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, SUBJ_ALL_CAPS,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 575AF7F63 for ; Sun, 10 Aug 2014 10:42:40 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 02CEAAC005 for ; Sun, 10 Aug 2014 08:42:36 -0700 (PDT) X-ASG-Debug-ID: 1407685354-04bdf06ef95f750001-NocioJ Received: from mail-oi0-f72.google.com (mail-oi0-f72.google.com [209.85.218.72]) by cuda.sgi.com with ESMTP id WmAUuxtM1Otu5IfA (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; 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<= /html> --20cf30434d748407ec050048499c-- From alex@zadarastorage.com Sun Aug 10 11:26:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 074397F63 for ; Sun, 10 Aug 2014 11:26:32 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id EA2DB8F8033 for ; Sun, 10 Aug 2014 09:26:28 -0700 (PDT) X-ASG-Debug-ID: 1407687986-04cbb0508b5ef00001-NocioJ Received: from mail-wi0-f170.google.com (mail-wi0-f170.google.com [209.85.212.170]) by cuda.sgi.com with ESMTP id yx8WjB0sdJZMCSRB (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sun, 10 Aug 2014 09:26:26 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.170 Received: by mail-wi0-f170.google.com with SMTP id f8so4542922wiw.3 for ; Sun, 10 Aug 2014 09:26:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=BY3giEHTug6kLGaoimr2cQzklZFTJoORTpne1HB0Bs4=; b=GKRLtiYGLTXAVRAXsIFmYFS6e/2YF07OERw0hXGoeJS5/Tg430FzdDEuaYLtg4JwOK q7GbLGHV5S2Ut4o2yhDgSnlqETJM0J/fzsbQn4P+iscOzzuU7YV6ezn8HpYokpR90dRS RS9LLLPuPZOANqFzqHue35XIaZPyACBBXzWhShwXBFx6lZzMRrXtUOuEZySHHG/ppUyg Km+xGtwch0fCme/sIqxV03ZMbr4BZYc4VREB3aU5ZMRUFLCvaL3EHyTAzUYzomztA+Uy lds4rfMtb2hcEcz3HNlHsbksBCcsDKGG3/REK/y3dHu0/MBYD0WrhGnMWtX9cUM4qF3n JxHw== X-Gm-Message-State: ALoCoQlq7HpCHOD41zyAnJ5TRZMZVpcdJiVMdBXyzyYoNuLRi3FNKxRpbp5fPGvsu4nvF/NhYL3O MIME-Version: 1.0 X-Received: by 10.180.92.73 with SMTP id ck9mr19081394wib.54.1407687984593; Sun, 10 Aug 2014 09:26:24 -0700 (PDT) Received: by 10.194.15.232 with HTTP; Sun, 10 Aug 2014 09:26:24 -0700 (PDT) In-Reply-To: <20140806123215.GJ20518@dastard> References: <20140113204314.GJ3469@dastard> <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806123215.GJ20518@dastard> Date: Sun, 10 Aug 2014 19:26:24 +0300 Message-ID: Subject: Re: use-after-free on log replay failure From: Alex Lyakas X-ASG-Orig-Subj: Re: use-after-free on log replay failure To: Dave Chinner Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wi0-f170.google.com[209.85.212.170] X-Barracuda-Start-Time: 1407687986 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8296 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words Hello Dave, On Wed, Aug 6, 2014 at 3:32 PM, Dave Chinner wrote: > On Wed, Aug 06, 2014 at 01:05:34PM +0300, Alex Lyakas wrote: >> Hi Dave, >> >> On Tue, Aug 5, 2014 at 2:07 AM, Dave Chinner wrote: >> > On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: >> >> Greetings, >> >> >> >> we had a log replay failure due to some errors that the underlying >> >> block device returned: >> >> [49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 >> >> ("xlog_recover_iodone") error 28 numblks 16 >> >> [49133.802495] XFS (dm-95): log mount/recovery failed: error 28 >> >> [49133.802644] XFS (dm-95): log mount failed >> > >> > #define ENOSPC 28 /* No space left on device */ >> > >> > You're getting an ENOSPC as a metadata IO error during log recovery? >> > Thin provisioning problem, perhaps, >> Yes, it is a thin provisioning problem (which I already know the cause for). >> >> > and the error is occurring on >> > submission rather than completion? If so: >> > >> > 8d6c121 xfs: fix buffer use after free on IO error >> I am not sure what do you mean by "submission rather than completion". >> Do you mean that xfs_buf_ioapply_map() returns without submitting any >> bios? > > No, that the bio submission results in immediate failure (e.g. the > device goes away, so submission results in ENODEV). Hence when > _xfs_buf_ioapply() releases it's IO reference itis the only > remaining reference to the buffer and so completion processing is > run immediately. i.e. inline from the submission path. > > Normally IO errors are reported through the bio in IO completion > interrupt context. i.e the IO is completed by the hardware and the > error status is attached to bio, which is then completed and we get > into XFS that way. The IO submision context is long gone at this > point.... > >> In that case, no, bios are submitted to the block device, and it >> fails them through a different context with ENOSPC error. I will still >> try the patch you mentioned, because it also looks relevant to another >> question I addressed to you earlier in: >> http://oss.sgi.com/archives/xfs/2013-11/msg00648.html > > No, that's a different problem. > > 9c23ecc xfs: unmount does not wait for shutdown during unmount Yes, this patch appears to fix the problem that I reported in the past. XFS survives the unmount and kmemleak is also happy. Thanks! Is this patch safe to apply to 3.8.13? Thanks, Alex. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From david@fromorbit.com Sun Aug 10 23:32:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F1B227F4E for ; Sun, 10 Aug 2014 23:32:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E07D38F8037 for ; Sun, 10 Aug 2014 21:32:28 -0700 (PDT) X-ASG-Debug-ID: 1407731542-04cb6c4c94632c0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id g6J0dYevm6dUIfFt for ; Sun, 10 Aug 2014 21:32:23 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisJAF9G6FN5LDJ8PGdsb2JhbABagw2BKYIohQemYAEBAQEBAQamIwGBERcFAQEBATg2hAQBBTocIxAIAxgJJQ8FJQMHGhOIQcBlFxiFZIlQB4RMBZwumGorLw Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 11 Aug 2014 14:02:22 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XGhHP-0005BJ-KK; Mon, 11 Aug 2014 14:32:19 +1000 Date: Mon, 11 Aug 2014 14:32:19 +1000 From: Dave Chinner To: Fanael Linithien Cc: xfs@oss.sgi.com Subject: Re: Verifier fixes backported to stable kernels? Message-ID: <20140811043219.GJ26465@dastard> X-ASG-Orig-Subj: Re: Verifier fixes backported to stable kernels? References: <20140809005404.GG26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407731543 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8311 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Aug 09, 2014 at 05:55:19PM +0200, Fanael Linithien wrote: > 2014-08-09 2:54 GMT+02:00 Dave Chinner : > > What fixes are you talking about? List of commits, please, noting > > whether the commit already has a "cc: " in > > it or not. > > These are the commits: > > 400b9d88757c0bfbdfa97014e090ec40a31c1282 > 67dc288c21064b31a98a53dc64f6b9714b819fd6 (this is the only one with the cc) > 5fd364fee81a7888af806e42ed8a91c845894f2d > ad3714b82c631a34724da09a7daa53afcab952fa Ok, but please use the "one-line format" when quoting commits. I.e. this: $ git log --oneline -n 4 ad3714b ad3714b xfs: dquot recovery needs verifiers 5fd364f xfs: quotacheck leaves dquot buffers without verifiers 67dc288 xfs: ensure verifiers are attached to recovered buffers 400b9d8 xfs: catch buffers written without verifiers attached is much more informative to the reader without a git tree to look up commits. As it is, those commits have not yet been sent to Linus, hence they won't yet be accepted by the stable kernel folk. And because they haven't been sent to Linus yet, I can redo the commits in that topic branch with the needed stable tags. I've got to add a couple more fixes that need to go to stable, too, so a pull req won't happen for a couple of days yet.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 11 02:17:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9E1F97F4E for ; Mon, 11 Aug 2014 02:17:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6E9728F8035 for ; Mon, 11 Aug 2014 00:16:59 -0700 (PDT) X-ASG-Debug-ID: 1407741417-04bdf06ef67a260001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id FwEDMqwnRir03Tl6 for ; Mon, 11 Aug 2014 00:16:57 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisJAEFt6FN5LDJ8PGdsb2JhbABagw2BKYIohQemXgEBAQEBAQamIwGBFBcFAQEBATg2hAQBBTocIxAIAxgJJQ8FJQMHGhOIQcBjFxiFZIlQB4RMBZwumGorL4EFBw Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 11 Aug 2014 16:46:56 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XGjqH-0005WU-Nr; Mon, 11 Aug 2014 17:16:29 +1000 Date: Mon, 11 Aug 2014 17:16:29 +1000 From: Dave Chinner To: Fanael Linithien Cc: xfs@oss.sgi.com Subject: Re: Verifier fixes backported to stable kernels? Message-ID: <20140811071629.GK26465@dastard> X-ASG-Orig-Subj: Re: Verifier fixes backported to stable kernels? References: <20140809005404.GG26465@dastard> <20140811043219.GJ26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140811043219.GJ26465@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407741417 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8314 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 11, 2014 at 02:32:19PM +1000, Dave Chinner wrote: > On Sat, Aug 09, 2014 at 05:55:19PM +0200, Fanael Linithien wrote: > > 2014-08-09 2:54 GMT+02:00 Dave Chinner : > > > What fixes are you talking about? List of commits, please, noting > > > whether the commit already has a "cc: " in > > > it or not. > > > > These are the commits: > > > > 400b9d88757c0bfbdfa97014e090ec40a31c1282 > > 67dc288c21064b31a98a53dc64f6b9714b819fd6 (this is the only one with the cc) > > 5fd364fee81a7888af806e42ed8a91c845894f2d > > ad3714b82c631a34724da09a7daa53afcab952fa > > Ok, but please use the "one-line format" when quoting commits. > > I.e. this: > > $ git log --oneline -n 4 ad3714b > ad3714b xfs: dquot recovery needs verifiers > 5fd364f xfs: quotacheck leaves dquot buffers without verifiers > 67dc288 xfs: ensure verifiers are attached to recovered buffers > 400b9d8 xfs: catch buffers written without verifiers attached Actually, I'm not going to send this last patch back to older, stable kernels. I really don't want to have to port random patches back to older kernels to avoid it generating false positives. Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Mon Aug 11 08:21:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 647E67F3F for ; Mon, 11 Aug 2014 08:21:05 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2A9AB8F8035 for ; Mon, 11 Aug 2014 06:21:05 -0700 (PDT) X-ASG-Debug-ID: 1407763260-04cb6c4c9379690001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ttKTKPDEnWJMXgWe (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 06:21:00 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7BDKx5I024858 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Aug 2014 09:20:59 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7BDKwXu017519; Mon, 11 Aug 2014 09:20:58 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id C36CC12577C; Mon, 11 Aug 2014 09:20:57 -0400 (EDT) Date: Mon, 11 Aug 2014 09:20:57 -0400 From: Brian Foster To: Alex Lyakas Cc: xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140811132057.GA1186@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407763260 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Aug 10, 2014 at 03:20:50PM +0300, Alex Lyakas wrote: > Hi Brian, > > On Wed, Aug 6, 2014 at 6:20 PM, Brian Foster wrote: > > On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: > >> Hello Dave and Brian, > >> > >> Dave, I tried the patch you suggested, but it does not fix the issue. I did > >> some further digging, and it appears that _xfs_buf_ioend(schedule=1) can be > >> called from xfs_buf_iorequest(), which the patch fixes, but also from > >> xfs_buf_bio_end_io() which is my case. I am reproducing the issue pretty > >> easily. The flow that I have is like this: > >> - xlog_recover() calls xlog_find_tail(). This works alright. > > > > What's the purpose of a sleep here? > > > >> - Now I add a small sleep before calling xlog_do_recover(), and meanwhile I > >> instruct my block device to return ENOSPC for any WRITE from now on. > >> > >> What seems to happen is that several WRITE bios are submitted and they all > >> fail. When they do, they reach xfs_buf_ioend() through a stack like this: > >> > >> Aug 6 15:23:07 dev kernel: [ 304.410528] [56]xfs*[xfs_buf_ioend:1056] > >> XFS(dm-19): Scheduling xfs_buf_iodone_work on error > >> Aug 6 15:23:07 dev kernel: [ 304.410534] Pid: 56, comm: kworker/u:1 > >> Tainted: G W O 3.8.13-557-generic #1382000791 > >> Aug 6 15:23:07 dev kernel: [ 304.410537] Call Trace: > >> Aug 6 15:23:07 dev kernel: [ 304.410587] [] > >> xfs_buf_ioend+0x1a4/0x1b0 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.410621] [] > >> _xfs_buf_ioend+0x25/0x30 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.410643] [] > >> xfs_buf_bio_end_io+0x3d/0x50 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.410652] [] > >> bio_endio+0x1d/0x40 > >> ... > >> > >> At this point, they are scheduled to run xlog_recover_iodone through > >> xfslogd_workqueue. > >> The first callback that gets called, calls xfs_do_force_shutdown in stack > >> like this: > >> > >> Aug 6 15:23:07 dev kernel: [ 304.411791] XFS (dm-19): metadata I/O error: > >> block 0x3780001 ("xlog_recover_iodone") error 28 numblks 1 > >> Aug 6 15:23:07 dev kernel: [ 304.413493] XFS (dm-19): > >> xfs_do_force_shutdown(0x1) called from line 377 of file > >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > >> 0xffffffffa0526848 > >> Aug 6 15:23:07 dev kernel: [ 304.413837] [] > >> xfs_do_force_shutdown+0x40/0x180 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.413870] [] ? > >> xlog_recover_iodone+0x48/0x70 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.413902] [] > >> xlog_recover_iodone+0x48/0x70 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.413923] [] > >> xfs_buf_iodone_work+0x4d/0xa0 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.413930] [] > >> process_one_work+0x141/0x4a0 > >> Aug 6 15:23:07 dev kernel: [ 304.413937] [] > >> worker_thread+0x168/0x410 > >> Aug 6 15:23:07 dev kernel: [ 304.413943] [] ? > >> manage_workers+0x120/0x120 > >> Aug 6 15:23:07 dev kernel: [ 304.413949] [] > >> kthread+0xc0/0xd0 > >> Aug 6 15:23:07 dev kernel: [ 304.413954] [] ? > >> flush_kthread_worker+0xb0/0xb0 > >> Aug 6 15:23:07 dev kernel: [ 304.413976] [] > >> ret_from_fork+0x7c/0xb0 > >> Aug 6 15:23:07 dev kernel: [ 304.413986] [] ? > >> flush_kthread_worker+0xb0/0xb0 > >> Aug 6 15:23:07 dev kernel: [ 304.413990] ---[ end trace 988d698520e1fa81 > >> ]--- > >> Aug 6 15:23:07 dev kernel: [ 304.414012] XFS (dm-19): I/O Error Detected. > >> Shutting down filesystem > >> Aug 6 15:23:07 dev kernel: [ 304.415936] XFS (dm-19): Please umount the > >> filesystem and rectify the problem(s) > >> > >> But the rest of the callbacks also arrive: > >> Aug 6 15:23:07 dev kernel: [ 304.417812] XFS (dm-19): metadata I/O error: > >> block 0x3780002 ("xlog_recover_iodone") error 28 numblks 1 > >> Aug 6 15:23:07 dev kernel: [ 304.420420] XFS (dm-19): > >> xfs_do_force_shutdown(0x1) called from line 377 of file > >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > >> 0xffffffffa0526848 > >> Aug 6 15:23:07 dev kernel: [ 304.420427] XFS (dm-19): metadata I/O error: > >> block 0x3780008 ("xlog_recover_iodone") error 28 numblks 8 > >> Aug 6 15:23:07 dev kernel: [ 304.422708] XFS (dm-19): > >> xfs_do_force_shutdown(0x1) called from line 377 of file > >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > >> 0xffffffffa0526848 > >> Aug 6 15:23:07 dev kernel: [ 304.422738] XFS (dm-19): metadata I/O error: > >> block 0x3780010 ("xlog_recover_iodone") error 28 numblks 8 > >> > >> The mount sequence fails and goes back to the caller: > >> Aug 6 15:23:07 dev kernel: [ 304.423438] XFS (dm-19): log mount/recovery > >> failed: error 28 > >> Aug 6 15:23:07 dev kernel: [ 304.423757] XFS (dm-19): log mount failed > >> > >> But there are still additional callbacks to deliver, which the mount > >> sequence did not wait for! > >> Aug 6 15:23:07 dev kernel: [ 304.425717] XFS ( @dR): > >> xfs_do_force_shutdown(0x1) called from line 377 of file > >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > >> 0xffffffffa0526848 > >> Aug 6 15:23:07 dev kernel: [ 304.425723] XFS ( @dR): metadata I/O error: > >> block 0x3780018 ("xlog_recover_iodone") error 28 numblks 8 > >> Aug 6 15:23:07 dev kernel: [ 304.428239] XFS ( @dR): > >> xfs_do_force_shutdown(0x1) called from line 377 of file > >> /mnt/work/alex/xfs/fs/xfs/xfs_log_recover.c. Return address = > >> 0xffffffffa0526848 > >> Aug 6 15:23:07 dev kernel: [ 304.428246] XFS ( @dR): metadata I/O error: > >> block 0x37800a0 ("xlog_recover_iodone") error 28 numblks 16 > >> > >> Notice the junk that they are printing! Naturally, because xfs_mount > >> structure has been kfreed. > >> > >> Finally the kernel crashes (instead of printing junk), because the xfs_mount > >> structure is gone, but the callback tries to access it (printing the name): > >> > >> Aug 6 15:23:07 dev kernel: [ 304.430796] general protection fault: 0000 > >> [#1] SMP > >> Aug 6 15:23:07 dev kernel: [ 304.432035] Modules linked in: xfrm_user > >> xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 iscsi_scst_tcp(O) > >> scst_vdisk(O) scst(O) dm_zcache(O) dm_btrfs(O) xfs(O) btrfs(O) libcrc32c > >> raid456(O) async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq > >> async_tx raid1(O) md_mod deflate zlib_deflate ctr twofish_generic > >> twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 > >> twofish_common camellia_generic serpent_generic blowfish_generic > >> blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic xcbc > >> rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin kvm vfat > >> fat ppdev psmouse microcode nfsd nfs_acl dm_multipath(O) serio_raw > >> parport_pc nfsv4 dm_iostat(O) mac_hid i2c_piix4 auth_rpcgss nfs fscache > >> lockd sunrpc lp parport floppy > >> Aug 6 15:23:07 dev kernel: [ 304.432035] CPU 1 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] Pid: 133, comm: kworker/1:1H > >> Tainted: G W O 3.8.13-557-generic #1382000791 Bochs Bochs > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RIP: 0010:[] > >> [] strnlen+0xb/0x30 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RSP: 0018:ffff880035461b08 > >> EFLAGS: 00010086 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RAX: 0000000000000000 RBX: > >> ffffffff81e6a4e7 RCX: 0000000000000000 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RDX: e4e8390a265c0000 RSI: > >> ffffffffffffffff RDI: e4e8390a265c0000 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RBP: ffff880035461b08 R08: > >> 000000000000ffff R09: 000000000000ffff > >> Aug 6 15:23:07 dev kernel: [ 304.432035] R10: 0000000000000000 R11: > >> 00000000000004cd R12: e4e8390a265c0000 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] R13: ffffffff81e6a8c0 R14: > >> 0000000000000000 R15: 000000000000ffff > >> Aug 6 15:23:07 dev kernel: [ 304.432035] FS: 0000000000000000(0000) > >> GS:ffff88007fc80000(0000) knlGS:0000000000000000 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] CS: 0010 DS: 0000 ES: 0000 CR0: > >> 000000008005003b > >> Aug 6 15:23:07 dev kernel: [ 304.432035] CR2: 00007fc902ffbfd8 CR3: > >> 000000007702a000 CR4: 00000000000006e0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] DR0: 0000000000000000 DR1: > >> 0000000000000000 DR2: 0000000000000000 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] DR3: 0000000000000000 DR6: > >> 00000000ffff0ff0 DR7: 0000000000000400 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] Process kworker/1:1H (pid: 133, > >> threadinfo ffff880035460000, task ffff880035412e00) > >> Aug 6 15:23:07 dev kernel: [ 304.432035] Stack: > >> Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461b48 > >> ffffffff8133dd5e 0000000000000000 ffffffff81e6a4e7 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] ffffffffa0566cba > >> ffff880035461c80 ffffffffa0566cba ffffffff81e6a8c0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] ffff880035461bc8 > >> ffffffff8133ef59 ffff880035461bc8 ffffffff81c84040 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] Call Trace: > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> string.isra.4+0x3e/0xd0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> vsnprintf+0x219/0x640 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> vscnprintf+0x11/0x30 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> vprintk_emit+0xc1/0x490 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > >> vprintk_emit+0x170/0x490 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> printk+0x61/0x63 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> __xfs_printk+0x31/0x50 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> xfs_notice+0x53/0x60 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> xfs_do_force_shutdown+0xf5/0x180 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > >> xlog_recover_iodone+0x48/0x70 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> xlog_recover_iodone+0x48/0x70 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> xfs_buf_iodone_work+0x4d/0xa0 [xfs] > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> process_one_work+0x141/0x4a0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> worker_thread+0x168/0x410 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > >> manage_workers+0x120/0x120 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> kthread+0xc0/0xd0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > >> flush_kthread_worker+0xb0/0xb0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] > >> ret_from_fork+0x7c/0xb0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] [] ? > >> flush_kthread_worker+0xb0/0xb0 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] Code: 31 c0 80 3f 00 55 48 89 e5 > >> 74 11 48 89 f8 66 90 48 83 c0 01 80 38 00 75 f7 48 29 f8 5d c3 66 90 55 31 > >> c0 48 85 f6 48 89 e5 74 23 <80> 3f 00 74 1e 48 89 f8 eb 0c 0f 1f 00 48 83 ee > >> 01 80 38 00 74 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RIP [] > >> strnlen+0xb/0x30 > >> Aug 6 15:23:07 dev kernel: [ 304.432035] RSP > >> > >> > >> So previously you said: "So, something is corrupting memory and stamping all > >> over the XFS structures." and also "given you have a bunch of out of tree > >> modules loaded (and some which are experiemental) suggests that you have a > >> problem with your storage...". > >> > >> But I believe, my analysis shows that during the mount sequence XFS does not > >> wait properly for all the bios to complete, before failing the mount > >> sequence back to the caller. > >> > > > > As an experiment, what about the following? Compile tested only and not > > safe for general use. > > > > What might help more is to see if you can create a reproducer on a > > recent, clean kernel. Perhaps a metadump of your reproducer fs combined > > with whatever block device ENOSPC hack you're using would do it. > > > > Brian > > > > ---8<--- > > > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > > index cd7b8ca..fbcf524 100644 > > --- a/fs/xfs/xfs_buf.c > > +++ b/fs/xfs/xfs_buf.c > > @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( > > * case nothing will ever complete. It returns the I/O error code, if any, or > > * 0 if there was no error. > > */ > > -int > > -xfs_buf_iowait( > > - xfs_buf_t *bp) > > +static int > > +__xfs_buf_iowait( > > + struct xfs_buf *bp, > > + bool skip_error) > > { > > trace_xfs_buf_iowait(bp, _RET_IP_); > > > > - if (!bp->b_error) > > + if (skip_error || !bp->b_error) > > wait_for_completion(&bp->b_iowait); > > > > trace_xfs_buf_iowait_done(bp, _RET_IP_); > > return bp->b_error; > > } > > > > +int > > +xfs_buf_iowait( > > + struct xfs_buf *bp) > > +{ > > + return __xfs_buf_iowait(bp, false); > > +} > > + > > xfs_caddr_t > > xfs_buf_offset( > > xfs_buf_t *bp, > > @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( > > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > > > list_del_init(&bp->b_list); > > - error2 = xfs_buf_iowait(bp); > > + error2 = __xfs_buf_iowait(bp, true); > > xfs_buf_relse(bp); > > if (!error) > > error = error2; > > > > --- > I think that this patch fixes the problem. I tried reproducing it like > 30 times, and it doesn't happen with this patch. Dropping this patch > reproduces the problem within 1 or 2 tries. Thanks! > What are next steps? How to make it "safe for general use"? > Ok, thanks for testing. I think that implicates the caller bypassing the expected blocking with the right sequence of log recovery I/Os and device failure. TBH, I'd still like to see the specifics, if possible. Could you come up with a generic reproducer for this? I think a metadump of the fs with the dirty log plus whatever device failure simulation hack you're using would suffice. The ideal fix is not yet clear to me. Technically, we could always find a way to customize this particular path to rely on b_iowait since that appears safe, but that could just be a band aid over a larger problem. I'll need to step back and stare at this code some more to try and understand the layering better, then follow up with something when things are more clear. Brian > Thanks, > Alex. > > > > > > > > >> Thanks, > >> Alex. > >> > >> > >> > >> -----Original Message----- From: Dave Chinner > >> Sent: 05 August, 2014 2:07 AM > >> To: Alex Lyakas > >> Cc: xfs@oss.sgi.com > >> Subject: Re: use-after-free on log replay failure > >> > >> On Mon, Aug 04, 2014 at 02:00:05PM +0300, Alex Lyakas wrote: > >> >Greetings, > >> > > >> >we had a log replay failure due to some errors that the underlying > >> >block device returned: > >> >[49133.801406] XFS (dm-95): metadata I/O error: block 0x270e8c180 > >> >("xlog_recover_iodone") error 28 numblks 16 > >> >[49133.802495] XFS (dm-95): log mount/recovery failed: error 28 > >> >[49133.802644] XFS (dm-95): log mount failed > >> > >> #define ENOSPC 28 /* No space left on device */ > >> > >> You're getting an ENOSPC as a metadata IO error during log recovery? > >> Thin provisioning problem, perhaps, and the error is occurring on > >> submission rather than completion? If so: > >> > >> 8d6c121 xfs: fix buffer use after free on IO error > >> > >> Cheers, > >> > >> Dave. > >> -- > >> Dave Chinner > >> david@fromorbit.com > >> > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Aug 11 08:29:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2328A7F4E for ; Mon, 11 Aug 2014 08:29:32 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E66018F8059 for ; Mon, 11 Aug 2014 06:29:31 -0700 (PDT) X-ASG-Debug-ID: 1407763770-04cb6c4c96799c0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id LQfHpExHioFPUH9Z (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 06:29:30 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7BDTKM0009558 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Aug 2014 09:29:20 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7BDTKZ5026106; Mon, 11 Aug 2014 09:29:20 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 77D2712577C; Mon, 11 Aug 2014 09:29:19 -0400 (EDT) Date: Mon, 11 Aug 2014 09:29:19 -0400 From: Brian Foster To: Chris Mason Cc: xfs@oss.sgi.com, Dave Chinner , Eric Sandeen Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140811132919.GB1186@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E61A9C.4020807@fb.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407763770 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who only > invalidate pages during DIO writes. > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial ranges in > the page. This means a DIO read can zero out part of the page cache > page, and it is possible the page will stay in cache. > > buffered reads will find an up to date page with zeros instead of the > data actually on disk. > > This patch fixes things by using invalidate_inode_pages2_range instead. > It preserves the page cache invalidation, but won't zero any pages. > > Signed-off-by: Chris Mason > cc: stable@vger.kernel.org > > --- I can't say I grok the risk of removing the invalidation entirely, but this is certainly a more isolated fix: Reviewed-by: Brian Foster > fs/xfs/xfs_file.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 1f66779..023d575 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -295,7 +295,8 @@ xfs_file_read_iter( > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > } > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > + pos >> PAGE_CACHE_SHIFT, -1); > } > xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > } > -- > 1.8.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From robin.listas@gmail.com Mon Aug 11 09:23:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3844A7F3F for ; Mon, 11 Aug 2014 09:23:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0C12C304062 for ; Mon, 11 Aug 2014 07:23:22 -0700 (PDT) X-ASG-Debug-ID: 1407766996-04cbb0508c907e0001-NocioJ Received: from mail-we0-f177.google.com (mail-we0-f177.google.com [74.125.82.177]) by cuda.sgi.com with ESMTP id VYrTUFTDFDFBoj1d (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 07:23:17 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.177 Received: by mail-we0-f177.google.com with SMTP id w62so8468046wes.8 for ; Mon, 11 Aug 2014 07:23:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=hpFMYvfXhEZh/VlRixuqwPovb4OR57PeON1Cti0rZWU=; b=wM7qpFC66fhpIfoE9q79obCMQVTRZaivfKGFc4T/8GeTKAfl+Hxc/MBeBELLXZNavo PLYm+2du0daEs21M7ZN4LewFzCIUQYU9NG9dHWM1rRX7NXBsOnTNH0btesdN30QMpD5P s7jSCYZjWTB96Vv8D8aMXQmW1i8fSicvzU06BlKAlRtYV7Y142S9ElfRNA6cNXwTavUD 9nlaR2UwyWXMsVY2/lXCg7BL47xT5iR2Ut3M7i2fUwB7xZEfA4+xZ/orXalpan+9Jc3r i0DJFvYwsI1nb70sE5m8lmAalM9RlIVe2oyNBmA7jHq22QtHgBnL5xXS+uW+sphlCJYP OtVA== X-Received: by 10.180.89.100 with SMTP id bn4mr26431392wib.34.1407766996377; Mon, 11 Aug 2014 07:23:16 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id e3sm2038756wjp.4.2014.08.11.07.23.14 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 07:23:15 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id E1C1918245D for ; Mon, 11 Aug 2014 16:23:10 +0200 (CEST) Date: Mon, 11 Aug 2014 16:23:01 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: X-ASG-Orig-Subj: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1278469637-1407766990=:2447" X-Barracuda-Connect: mail-we0-f177.google.com[74.125.82.177] X-Barracuda-Start-Time: 1407766997 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8321 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1278469637-1407766990=:2447 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 El 2014-07-02 a las 11:57 +0200, Carlos E. R. escribió: > I got this error: Happened again, I'm on middle of recovery procedures, and using my laptop to post. The system did not "die", I could still use xterms owned by root. So I tried to use xfs_metadump before rebooting, but it refused, said that the partition was mounted (and I know from previous times that umounting fails or locks the machine). It also said that it could not intialize the XFS library. So I logged out, and issued "reboot" on tty1 as root. No go, it got stuck somewhere, and I had to hit the physical reset button on the machine. I have not looked at the logs yet. I am now running the machine off a live usb stick (13.1 XFCE rescue system) to avoid the automatics to fsck the home partition, and I already obtained a xfs_metadump of it. I post this in case you have some suggestion before I nuke the partition (rsync, reformat, etc). It shold take some hours. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPo0c4ACgkQja8UbcUWM1wIewD/eEwnzZpDjJLuytDOD9bqiypF ly6QCDckRvc2rVuCbwcA/0IX5tXGhAHr6izQvWol3F4RoxLk0uf74Ayn8lvSlDU0 =WAIZ -----END PGP SIGNATURE----- ---1463779071-1278469637-1407766990=:2447-- From bfoster@redhat.com Mon Aug 11 09:44:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D7F1C7F3F for ; Mon, 11 Aug 2014 09:44:10 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3D960AC004 for ; Mon, 11 Aug 2014 07:44:07 -0700 (PDT) X-ASG-Debug-ID: 1407768245-04cbb0508d926a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZogptlbFC3ArOz5T (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 07:44:05 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7BEi2Rn015747 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Aug 2014 10:44:02 -0400 Received: from laptop.bfoster (vpn-58-175.rdu2.redhat.com [10.10.58.175]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7BEi0cZ019507 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Mon, 11 Aug 2014 10:44:02 -0400 Date: Mon, 11 Aug 2014 10:44:00 -0400 From: Brian Foster To: "Carlos E. R." Cc: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140811144359.GA10217@laptop.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407768245 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Aug 11, 2014 at 04:23:01PM +0200, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > > El 2014-07-02 a las 11:57 +0200, Carlos E. R. escribió: > > >I got this error: > > Happened again, I'm on middle of recovery procedures, and using my laptop to > post. > > > The system did not "die", I could still use xterms owned by root. So I tried > to use xfs_metadump before rebooting, but it refused, said that the > partition was mounted (and I know from previous times that umounting fails > or locks the machine). It also said that it could not intialize the XFS > library. > > So I logged out, and issued "reboot" on tty1 as root. No go, it got stuck > somewhere, and I had to hit the physical reset button on the machine. I have > not looked at the logs yet. > > I am now running the machine off a live usb stick (13.1 XFCE rescue system) > to avoid the automatics to fsck the home partition, and I already obtained a > xfs_metadump of it. > > I post this in case you have some suggestion before I nuke the partition > (rsync, reformat, etc). It shold take some hours. > Assuming you already have a pre-repair metadump, I'd suggest to xfs_repair, capture and post the repair output to the list and leave it at that (for now at least). I think you mentioned previously that the problem hits more frequently at this point, so I wonder if you could try to reproduce and get a better idea of what might contribute to the failure. For example, can you actively reproduce at this point? Perhaps get some work going on all of the applications you typically have running and run some hibernation cycles..? While a reformat might spare you from the issue for a bit, it's going to make it that much harder to get more information on what's going on. Brian > - -- Cheers > Carlos E. R. > > (from 13.1 x86_64 "Bottle" (Minas Tirith)) > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (GNU/Linux) > > iF4EAREIAAYFAlPo0c4ACgkQja8UbcUWM1wIewD/eEwnzZpDjJLuytDOD9bqiypF > ly6QCDckRvc2rVuCbwcA/0IX5tXGhAHr6izQvWol3F4RoxLk0uf74Ayn8lvSlDU0 > =WAIZ > -----END PGP SIGNATURE----- > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From tinguely@sgi.com Mon Aug 11 09:58:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C64507F3F for ; Mon, 11 Aug 2014 09:58:01 -0500 (CDT) Received: from dhcp-128-162-232-117.americas.sgi.com (dhcp-128-162-232-117.americas.sgi.com [128.162.232.117]) by relay1.corp.sgi.com (Postfix) with ESMTP id 946908F8037 for ; Mon, 11 Aug 2014 07:57:58 -0700 (PDT) Message-ID: <53E8D9F6.7080704@sgi.com> Date: Mon, 11 Aug 2014 09:57:58 -0500 From: Mark Tinguely User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit On 08/11/14 09:23, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > > El 2014-07-02 a las 11:57 +0200, Carlos E. R. escribió: > >> I got this error: > > Happened again, I'm on middle of recovery procedures, and using my > laptop to post. > > > The system did not "die", I could still use xterms owned by root. So I > tried to use xfs_metadump before rebooting, but it refused, said that > the partition was mounted (and I know from previous times that umounting > fails or locks the machine). It also said that it could not intialize > the XFS library. > > So I logged out, and issued "reboot" on tty1 as root. No go, it got > stuck somewhere, and I had to hit the physical reset button on the > machine. I have not looked at the logs yet. > > I am now running the machine off a live usb stick (13.1 XFCE rescue > system) to avoid the automatics to fsck the home partition, and I > already obtained a xfs_metadump of it. > > I post this in case you have some suggestion before I nuke the partition > (rsync, reformat, etc). It shold take some hours. > > - -- Cheers > Carlos E. R. Where in the filesystem did the XFS_WANT_CORRUPTED_GOTO happen? I am interested in the metadata dump. Also, some one hit back to back duplicate block allocation XFS_WANT_CORRUPTED_GOTO bugs, you may want to do a metadata dump before and after the xfs_repair in case you hit it again soon. If this is a duplicate block allocation, some user blocks will have overwritten the metadata. --Mark. From robin.listas@gmail.com Mon Aug 11 09:59:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C20B67F3F for ; Mon, 11 Aug 2014 09:59:01 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7CE448F8040 for ; Mon, 11 Aug 2014 07:59:01 -0700 (PDT) X-ASG-Debug-ID: 1407769138-04bdf06ef6946e0001-NocioJ Received: from mail-we0-f171.google.com (mail-we0-f171.google.com [74.125.82.171]) by cuda.sgi.com with ESMTP id yPCEYs8fA5OSaBfm (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 07:58:59 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.171 Received: by mail-we0-f171.google.com with SMTP id p10so8791280wes.16 for ; Mon, 11 Aug 2014 07:58:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type:content-id; bh=cok1WZrJ/LlU6aSPQGP4Zl7uSz6VSr4o3TT/Lr3721o=; b=K9hAG/hJYOlBzolf/8aTmOuXwiphwjYrpNdqYR9eKy5QP06XcAZQGOHJ81cCxDL226 Mfn8SIxoMaDhm7CutW7g6aHiUqqsiGWWVSUSVZebdPl5FSIyQZyTijuaBQ3uFlFtawkI cr66CNi2Pah3g25/wO366p6vBc7ohfFOE4bFNgMthc9VGTakVniHDJApTZxLUiZd9Ijy jPY/PWK4gp1xTB2t9MFzC6xo89RpuPUZ4guh82YnEPOZ25aT0eb0qCTo2fKY/Y3WVzbr 1SlulpVorGuWzQ3xN8qf0ESdDXcW5mZmXp55A27IwdwKQkpWai6VZdQ+nJD6CzwhEwAt LQQg== X-Received: by 10.194.21.200 with SMTP id x8mr55651730wje.81.1407769138497; Mon, 11 Aug 2014 07:58:58 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id z5sm2139126wje.49.2014.08.11.07.58.57 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 07:58:57 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id 9830F18245D for ; Mon, 11 Aug 2014 16:58:55 +0200 (CEST) Date: Mon, 11 Aug 2014 16:58:47 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20140811144359.GA10217@laptop.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <20140811144359.GA10217@laptop.bfoster> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1121377066-1407769065=:7326" Content-ID: X-Barracuda-Connect: mail-we0-f171.google.com[74.125.82.171] X-Barracuda-Start-Time: 1407769139 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8322 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1121377066-1407769065=:7326 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Content-ID: El 2014-08-11 a las 10:44 -0400, Brian Foster escribió: >> I post this in case you have some suggestion before I nuke the partition >> (rsync, reformat, etc). It shold take some hours. >> > > Assuming you already have a pre-repair metadump, I'd suggest to > xfs_repair, capture and post the repair output to the list and leave it > at that (for now at least). I think you mentioned previously that the > problem hits more frequently at this point, so I wonder if you could try > to reproduce and get a better idea of what might contribute to the > failure. > > For example, can you actively reproduce at this point? Perhaps get some > work going on all of the applications you typically have running and run > some hibernation cycles..? While a reformat might spare you from the > issue for a bit, it's going to make it that much harder to get more > information on what's going on. Ok, will do. I will create a backup of my partition, with xfsdump, after attempting repair of the partition, and reboot, and see (without the reformat cycle). At this instant I'm doing a full dd of the partition, just in case it becomes useful. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPo2i8ACgkQja8UbcUWM1wj3AD/T1eMkxiQUYSa6OBHvmTNj64g cF6Gi5Gjv/dsF4aIcL0A/0vHz3bFmvhzh7D/2ugvb84tj8NtHC1QWPrY6Lbw4FmW =8+lJ -----END PGP SIGNATURE----- ---1463779071-1121377066-1407769065=:7326-- From robin.listas@gmail.com Mon Aug 11 10:35:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2C1BD7F3F for ; Mon, 11 Aug 2014 10:35:09 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6DB2AAC003 for ; Mon, 11 Aug 2014 08:35:08 -0700 (PDT) X-ASG-Debug-ID: 1407771299-04cb6c4c9580890001-NocioJ Received: from mail-we0-f172.google.com (mail-we0-f172.google.com [74.125.82.172]) by cuda.sgi.com with ESMTP id hpVFA7EReDLHaOjb (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 08:35:00 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.172 Received: by mail-we0-f172.google.com with SMTP id x48so8810342wes.3 for ; Mon, 11 Aug 2014 08:34:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=KHvtjeK1gWoAWYZ8q/2ikauKidsv+ldkBohdPOJyxgk=; b=0jraqxtERgU7FE1NLaNG0JqDQ4A+R103FQ4TtnXz9J7SFNueSU5JuxcvZBAtMKWf21 QxM6cTu75IY1UP1b8qYqddsHPPk97aL+X6StG9unRNNZVG2OkN4htgrupsm9RW4R+Tia 2VEgQy5V2j4ryZv/BROMp1dvYGULhvXepIiFFZYbvE6+aOWJdGoinaZOgLKc9D6fHrpy rAHaQzOgeSn5wUiRi1Jx7AKsjG3G1benKP4wWr94B+2HeNDSIdU04J8t6tbxqqY8vudT bo93u4nX3J1WlaNO6VKqDbv410Em2Q5YcFhLL2J3mDSq2aM0QAI1i9KF1YlOJlkrogkU vksA== X-Received: by 10.180.73.235 with SMTP id o11mr26512928wiv.41.1407771299588; Mon, 11 Aug 2014 08:34:59 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id mw4sm45075734wic.20.2014.08.11.08.34.56 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 08:34:58 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id 71C6B185A7D for ; Mon, 11 Aug 2014 17:34:54 +0200 (CEST) Date: Mon, 11 Aug 2014 17:34:46 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <53E8D9F6.7080704@sgi.com> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <53E8D9F6.7080704@sgi.com> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1326823490-1407771294=:7326" X-Barracuda-Connect: mail-we0-f172.google.com[74.125.82.172] X-Barracuda-Start-Time: 1407771300 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.32 X-Barracuda-Spam-Status: No, SCORE=0.32 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, URI_HEX X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8322 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.32 URI_HEX URI: URI hostname has long hexadecimal sequence This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1326823490-1407771294=:7326 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 El 2014-08-11 a las 09:57 -0500, Mark Tinguely escribió: > On 08/11/14 09:23, Carlos E. R. wrote: > Where in the filesystem did the XFS_WANT_CORRUPTED_GOTO happen? This time? Did not look at the log yet. Let me see... Here is the full log of the event. It starts prior to hibernating, all things nominal. And ends on shutdown (had to hit reset button, despite what log says). If you want to see entries prior to that, since boot, I can do that. <3.6> 2014-08-11 05:15:01 Telcontar systemd 1 - - Starting Session 556 of user news. <3.6> 2014-08-11 05:18:01 Telcontar systemd 1 - - Starting Session 557 of user news. <3.6> 2014-08-11 05:20:01 Telcontar systemd 1 - - Starting Session 558 of user cer. <3.4> 2014-08-11 05:22:25 Telcontar pm-utils - - - Hibernating the system now (04)... <3.5> 2014-08-11 05:22:25 Telcontar pm-utils - - - There appears not be any pending nntp post to be sent. I just checked :-) <1.5> 2014-08-11 05:22:25 Telcontar network 5840 - - redirecting to "systemctl --signal=9 kill network.service" <3.5> 2014-08-11 05:22:25 Telcontar systemd 1 - - network@eth0.service: main process exited, code=killed, status=9/KILL <3.6> 2014-08-11 05:22:25 Telcontar systemd 1 - - Stopping LSB: Network time protocol daemon (ntpd)... <3.6> 2014-08-11 05:22:25 Telcontar ntp 5867 - - Shutting down network time protocol daemon (NTPD)..done <3.6> 2014-08-11 05:22:25 Telcontar systemd 1 - - Stopped LSB: Network time protocol daemon (ntpd). <3.4> 2014-08-11 05:22:25 Telcontar pm-utils - - - Hibernating (95)... <0.7> 2014-08-11 05:22:30 Telcontar kernel - - - [73220.857511] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] <0.7> 2014-08-11 05:22:30 Telcontar kernel - - - [73220.857516] PM: Marking nosave pages: [mem 0xbff90000-0xffffffff] <0.7> 2014-08-11 05:22:30 Telcontar kernel - - - [73220.858132] PM: Basic memory bitmaps created <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73221.946553] Syncing filesystems ... done. <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73222.682396] Freezing user space processes ... (elapsed 0.002 seconds) done. <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73222.685031] PM: Preallocating image memory... done (allocated 1140745 pages) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.046524] PM: Allocated 4562980 kbytes in 5.36 seconds (851.30 MB/s) <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.046645] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.048553] Suspending console(s) (use no_console_suspend to debug) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.049663] serial 00:05: disabled <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.260091] PM: freeze of devices complete after 211.420 msecs <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.260391] PM: late freeze of devices complete after 0.298 msecs <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.260939] PM: noirq freeze of devices complete after 0.545 msecs <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.260940] Disabling non-boot CPUs ... <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.262294] smpboot: CPU 1 is now offline <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.264134] smpboot: CPU 2 is now offline <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.265056] Broke affinity for irq 16 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.266103] smpboot: CPU 3 is now offline <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.266614] PM: Creating hibernation image: <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.267097] PM: Need to copy 920142 pages <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.267097] PM: Normal pages needed: 920142 + 1024, available pages: 1176633 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.267097] microcode: CPU0 sig=0x1067a, pf=0x10, revision=0xa0b <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.267097] Enabling non-boot CPUs ... <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.267097] smpboot: Booting Node 0 Processor 1 APIC 0x1 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.280111] microcode: CPU1 sig=0x1067a, pf=0x10, revision=0xa0b <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.280300] CPU1 is up <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.280425] smpboot: Booting Node 0 Processor 2 APIC 0x2 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.293688] microcode: CPU2 sig=0x1067a, pf=0x10, revision=0xa0b <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.293828] CPU2 is up <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.293918] smpboot: Booting Node 0 Processor 3 APIC 0x3 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.307216] microcode: CPU3 sig=0x1067a, pf=0x10, revision=0xa0b <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.307358] CPU3 is up <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.335219] PM: noirq restore of devices complete after 22.779 msecs <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.335354] PM: early restore of devices complete after 0.110 msecs <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508789] uhci_hcd 0000:00:1a.0: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508809] usb usb3: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508819] uhci_hcd 0000:00:1a.1: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508836] usb usb4: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508844] uhci_hcd 0000:00:1a.2: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508861] usb usb5: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508871] ehci-pci 0000:00:1a.7: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.508889] usb usb1: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510138] uhci_hcd 0000:00:1d.0: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510159] usb usb6: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510168] uhci_hcd 0000:00:1d.1: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510187] usb usb7: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510196] uhci_hcd 0000:00:1d.2: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510215] usb usb8: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510225] ehci-pci 0000:00:1d.7: setting latency timer to 64 <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.510235] usb usb2: root hub lost power or was reset <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.512778] ehci-pci 0000:00:1a.7: cache line size of 32 is not supported <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.512784] pci 0000:00:1e.0: setting latency timer to 64 <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.512879] ata_piix 0000:00:1f.2: setting latency timer to 64 <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.512934] ata_piix 0000:00:1f.5: setting latency timer to 64 <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.514123] ehci-pci 0000:00:1d.7: cache line size of 32 is not supported <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611029] pciehp 0000:00:1c.3:pcie04: Device 0000:05:00.0 already exists at 0000:05:00, cannot hot-add <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611032] pciehp 0000:00:1c.0:pcie04: Device 0000:02:00.0 already exists at 0000:02:00, cannot hot-add <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611035] pciehp 0000:00:1c.2:pcie04: Device 0000:04:00.0 already exists at 0000:04:00, cannot hot-add <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611036] pciehp 0000:00:1c.3:pcie04: Cannot add device at 0000:05:00 <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611037] pciehp 0000:00:1c.0:pcie04: Cannot add device at 0000:02:00 <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611039] pciehp 0000:00:1c.2:pcie04: Cannot add device at 0000:04:00 <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611061] pciehp 0000:00:1c.4:pcie04: Device 0000:06:00.0 already exists at 0000:06:00, cannot hot-add <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611062] pciehp 0000:00:1c.4:pcie04: Cannot add device at 0000:06:00 <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611086] pciehp 0000:00:1c.5:pcie04: Device 0000:07:00.0 already exists at 0000:07:00, cannot hot-add <0.3> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611087] pciehp 0000:00:1c.5:pcie04: Cannot add device at 0000:07:00 <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611172] pata_jmicron 0000:05:00.1: setting latency timer to 64 <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.611249] pata_jmicron 0000:04:00.1: setting latency timer to 64 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.614064] serial 00:05: activated <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.775267] r8169 0000:06:00.0 eth0: link down <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.837013] ata11: SATA link down (SStatus 0 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.837220] r8169 0000:07:00.0 eth1: link down <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.916030] ata2: SATA link down (SStatus 0 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.916069] ata1: SATA link down (SStatus 0 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.920031] ata4: SATA link down (SStatus 0 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.930018] usb 1-2: reset high-speed USB device number 3 using ehci-pci <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.988036] ata12: SATA link up 1.5 Gbps (SStatus 113 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.991149] ata12.00: ACPI cmd ef/03:45:00:00:00:a0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.991151] ata12.00: ACPI cmd ef/03:0c:00:00:00:a0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.991152] ata12.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73228.997133] ata12.00: configured for UDMA/100 <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.069020] firewire_core 0000:08:02.0: rediscovered device fw0 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.074017] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.076182] ata3.00: configured for UDMA/133 <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.076210] sd 2:0:0:0: [sda] Starting disk <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.146014] usb 2-5: reset high-speed USB device number 2 using ehci-pci <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.284050] ata9.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.284060] ata9.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.284167] ata10.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.284177] ata10.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300) <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287190] ata9.01: ACPI cmd ef/03:45:00:00:00:b0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287191] ata9.01: ACPI cmd ef/03:0c:00:00:00:b0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287241] ata10.01: ACPI cmd ef/03:45:00:00:00:b0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287242] ata10.01: ACPI cmd ef/03:0c:00:00:00:b0 (SET FEATURES) filtered out <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287362] ata9.01: ACPI cmd c6/00:10:00:00:00:b0 (SET MULTIPLE MODE) succeeded <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287364] ata9.01: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287457] ata10.01: ACPI cmd c6/00:10:00:00:00:b0 (SET MULTIPLE MODE) succeeded <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.287459] ata10.01: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293185] ata10.00: ACPI cmd ef/03:45:00:00:00:a0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293186] ata10.00: ACPI cmd ef/03:0c:00:00:00:a0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293236] ata9.00: ACPI cmd ef/03:45:00:00:00:a0 (SET FEATURES) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293237] ata9.00: ACPI cmd ef/03:0c:00:00:00:a0 (SET FEATURES) filtered out <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293378] ata10.00: ACPI cmd c6/00:10:00:00:00:a0 (SET MULTIPLE MODE) succeeded <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293379] ata10.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293443] ata9.00: ACPI cmd c6/00:10:00:00:00:a0 (SET MULTIPLE MODE) succeeded <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.293445] ata9.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK) filtered out <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.302319] ata9.00: configured for UDMA/133 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.308304] ata9.01: configured for UDMA/133 <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.308337] sd 8:0:0:0: [sdb] Starting disk <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.308338] sd 8:0:1:0: [sdc] Starting disk <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.318322] ata10.00: configured for UDMA/133 <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.324321] ata10.01: configured for UDMA/133 <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.324351] sd 9:0:1:0: [sde] Starting disk <0.5> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.324352] sd 9:0:0:0: [sdd] Starting disk <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73229.512018] usb 3-1: reset low-speed USB device number 2 using uhci_hcd <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73230.057013] usb 8-2: reset low-speed USB device number 2 using uhci_hcd <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73230.408094] usb 2-5.4: reset high-speed USB device number 4 using ehci-pci <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73230.798419] r8169 0000:06:00.0 eth0: link up <0.6> 2014-08-11 15:17:18 Telcontar kernel - - - [73231.245103] PM: restore of devices complete after 2736.365 msecs <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73231.514298] Restarting kernel threads ... done. <0.4> 2014-08-11 15:17:18 Telcontar kernel - - - [73231.518736] Restarting tasks ... done. <0.7> 2014-08-11 15:17:18 Telcontar kernel - - - [73231.562307] PM: Basic memory bitmaps freed <3.4> 2014-08-11 15:17:19 Telcontar rtkit-daemon 4535 - - The canary thread is apparently starving. Taking action. <3.6> 2014-08-11 15:17:19 Telcontar rtkit-daemon 4535 - - Demoting known real-time threads. <3.5> 2014-08-11 15:17:19 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4541 of process 4534 (/usr/bin/pulseaudio). <3.5> 2014-08-11 15:17:19 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4540 of process 4534 (/usr/bin/pulseaudio). <3.5> 2014-08-11 15:17:19 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4534 of process 4534 (/usr/bin/pulseaudio). <3.5> 2014-08-11 15:17:19 Telcontar rtkit-daemon 4535 - - Demoted 3 threads. <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.439809] XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.1 <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.439809]. <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440155] CPU: 0 PID: 6255 Comm: kworker/0:7 Tainted: P O 3.11.10-17-desktop #1 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440322] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7516/MS-7516, BIOS V1.5 10/10/2008 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440361] Workqueue: xfs-eofblocks/sdd5 xfs_eofblocks_worker [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440364] 0000000000000001 ffffffff815a0402 000000000010c9d3 ffffffffa0c38996 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440365] ffff880211412b00 ffff88023448dd80 ffff88023fb95cb0 0000000000000001 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440366] 0000000000000000 0000000100000000 0000000000000000 0000000000000001 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440367] Call Trace: <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440377] [] dump_trace+0x88/0x310 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440380] [] show_stack_log_lvl+0xd0/0x1d0 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440382] [] show_stack+0x1c/0x50 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440385] [] dump_stack+0x50/0x89 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440399] [] xfs_free_ag_extent+0x226/0x860 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440442] [] xfs_free_extent+0xb9/0xf0 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440484] [] xfs_bmap_finish+0x11e/0x170 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440534] [] xfs_itruncate_extents+0x190/0x340 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440597] [] xfs_free_eofblocks+0x1e3/0x260 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440633] [] xfs_inode_free_eofblocks+0x6f/0x150 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440662] [] xfs_inode_ag_walk.isra.10+0x1c2/0x310 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440690] [] xfs_inode_ag_iterator_tag+0x6e/0xb0 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440718] [] xfs_eofblocks_worker+0x12/0x20 [xfs] <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440737] [] process_one_work+0x168/0x490 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440739] [] worker_thread+0x114/0x3a0 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440742] [] kthread+0xaf/0xc0 <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440746] [] ret_from_fork+0x7c/0xb0 <0.5> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440751] XFS (sdd5): xfs_do_force_shutdown(0x8) called from line 916 of file /home/abuild/rpmbuild/BUILD/kernel-desktop- <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.498979] XFS (sdd5): Corruption of in-memory data detected. Shutting down filesystem <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.499136] XFS (sdd5): Please umount the filesystem and rectify the problem(s) <3.6> 2014-08-11 15:17:22 Telcontar systemd 1 - - Time has been changed <3.6> 2014-08-11 15:17:27 Telcontar acpid - - - 1 client rule loaded <3.4> 2014-08-11 15:17:29 Telcontar pm-utils - - - Thawing (95)... <3.5> 2014-08-11 15:17:30 Telcontar dbus 1020 - - [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper) <3.6> 2014-08-11 15:17:30 Telcontar systemd 1 - - Starting LSB: Network time protocol daemon (ntpd)... <0.4> 2014-08-11 15:17:30 Telcontar kernel - - - [73244.256012] XFS (sdd5): xfs_log_force: error 5 returned. <3.5> 2014-08-11 15:17:31 Telcontar dbus 1020 - - [system] Activated service 'org.freedesktop.PackageKit' failed: Cannot launch daemon, file not found or permissions invalid <1.5> 2014-08-11 15:17:31 Telcontar network 6315 - - redirecting to "systemctl restart network.service" <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Stopping ifup managed network interface eth1... <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Stopping ifup managed network interface eth0... <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Stopping LSB: Configure network interfaces and set up routing... <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Starting LSB: Configure network interfaces and set up routing... <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - touch: cannot touch ‘/dev/.sysconfig/network/tmp/if-eth0.6352’: No such file or directory <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - scripts/functions: line 1221: /dev/.sysconfig/network/tmp/if-eth0.6352.tmp: No such file or directory <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - scripts/functions: line 1239: /dev/.sysconfig/network/tmp/if-eth0.6352.tmp: No such file or directory <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - cat: /dev/.sysconfig/network/tmp/if-eth0.6352: No such file or directory <3.6> 2014-08-11 15:17:34 Telcontar ntp 6314 - - 11 Aug 15:17:34 sntp[6505]: Started sntp <3.6> 2014-08-11 15:17:34 Telcontar ifdown 6352 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <1.5> 2014-08-11 15:17:34 Telcontar ifdown 6352 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <3.6> 2014-08-11 15:17:34 Telcontar ifdown 6351 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <1.5> 2014-08-11 15:17:34 Telcontar ifdown 6351 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <3.6> 2014-08-11 15:17:34 Telcontar network 6384 - - Setting up network interfaces: <3.6> 2014-08-11 15:17:34 Telcontar network 6384 - - lo <1.5> 2014-08-11 15:17:34 Telcontar ifup 6924 - - lo <1.5> 2014-08-11 15:17:35 Telcontar ifup 6924 - - lo <1.5> 2014-08-11 15:17:35 Telcontar ifup 6924 - - IP address: 127.0.0.1/8 <3.6> 2014-08-11 15:17:35 Telcontar network 6384 - - lo IP address: 127.0.0.1/8 <1.5> 2014-08-11 15:17:35 Telcontar ifup 6924 - -. <16.3> 2014-08-11 15:17:38 Telcontar dhcpcd 7162 - - eth1: dhcpcd not running <16.6> 2014-08-11 15:17:38 Telcontar dhcpcd 7162 - - eth1: exiting <3.5> 2014-08-11 15:17:38 Telcontar systemd 1 - - Unit network@eth0.service entered failed state. <3.6> 2014-08-11 15:17:38 Telcontar systemd 1 - - Starting ifup managed network interface eth0... <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Interface eth0.IPv6 no longer relevant for mDNS. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Leaving mDNS multicast group on interface eth0.IPv6 with address fc00::14. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Interface eth0.IPv4 no longer relevant for mDNS. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.14. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Withdrawing address record for fc00::14 on eth0. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Withdrawing address record for 192.168.1.14 on eth0. <3.6> 2014-08-11 15:17:38 Telcontar ifup 7226 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <1.5> 2014-08-11 15:17:38 Telcontar ifup 7226 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <0.6> 2014-08-11 15:17:38 Telcontar kernel - - - [73251.792336] r8169 0000:06:00.0 eth0: link down <0.6> 2014-08-11 15:17:38 Telcontar kernel - - - [73251.792353] r8169 0000:06:00.0 eth0: link down <0.6> 2014-08-11 15:17:38 Telcontar kernel - - - [73251.792366] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.14. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - New relevant interface eth0.IPv4 for mDNS. <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Registering new address record for 192.168.1.14 on eth0.IPv4. <3.6> 2014-08-11 15:17:39 Telcontar systemd 1 - - Starting ifup managed network interface eth1... <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - ifplugd 0.28 initializing. <0.6> 2014-08-11 15:17:39 Telcontar kernel - - - [73252.646313] r8169 0000:07:00.0 eth1: link down <0.6> 2014-08-11 15:17:39 Telcontar kernel - - - [73252.646341] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - Using interface eth1/00:21:85:16:2D:0C with driver (version: 2.3LK-NAPI) <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - Using detection mode: SIOCETHTOOL <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - Initialization complete, link beat not detected. <1.5> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <1.5> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 is controlled by ifplugd <3.6> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) <3.6> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 is controlled by ifplugd <3.6> 2014-08-11 15:17:39 Telcontar systemd 1 - - Started ifup managed network interface eth1. <0.6> 2014-08-11 15:17:40 Telcontar kernel - - - [73253.958299] r8169 0000:06:00.0 eth0: link up <0.6> 2014-08-11 15:17:40 Telcontar kernel - - - [73253.958306] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready <3.6> 2014-08-11 15:17:41 Telcontar avahi-daemon 1007 - - Joining mDNS multicast group on interface eth0.IPv6 with address fe80::221:85ff:fe16:2d0b. <3.6> 2014-08-11 15:17:41 Telcontar avahi-daemon 1007 - - New relevant interface eth0.IPv6 for mDNS. <3.6> 2014-08-11 15:17:41 Telcontar avahi-daemon 1007 - - Registering new address record for fe80::221:85ff:fe16:2d0b on eth0.*. <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::221:85ff:fe16:2d0b. <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Joining mDNS multicast group on interface eth0.IPv6 with address fc00::14. <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Registering new address record for fc00::14 on eth0.*. <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Withdrawing address record for fe80::221:85ff:fe16:2d0b on eth0. <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 11 Aug 15:17:44 sntp[6505]: Received no useable packet from 192.168.1.15! <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 11 Aug 15:17:44 sntp[7926]: Started sntp <3.6> 2014-08-11 15:17:44 Telcontar systemd 1 - - Time has been changed <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 2014-08-11 15:17:44.656291 (-0100) -0.112718 +/- 0.037338 secs <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 2014-08-11 15:17:44.604369 (-0100) +0.0081 +/- 0.069473 secs <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - Time synchronized with 0.pool.ntp.org <4.6> 2014-08-11 15:17:45 Telcontar SuSEfirewall2 - - - Setting up rules from /etc/sysconfig/SuSEfirewall2 ... <4.6> 2014-08-11 15:17:45 Telcontar SuSEfirewall2 - - - using default zone 'ext' for interface eth1 <4.6> 2014-08-11 15:17:45 Telcontar SuSEfirewall2 - - - Firewall customary rules loaded from /etc/sysconfig/scripts/SuSEfirewall2-custom <3.5> 2014-08-11 15:17:45 Telcontar ntpd 7991 - - ntpd 4.2.6p5@1.2349-o Tue Jul 22 08:26:41 UTC 2014 (1) <3.6> 2014-08-11 15:17:45 Telcontar ntp 6314 - - Starting network time protocol daemon (NTPD)..done <3.6> 2014-08-11 15:17:44 Telcontar systemd 1 - - Time has been changed <3.6> 2014-08-11 15:17:45 Telcontar systemd 1 - - Started LSB: Network time protocol daemon (ntpd). <3.5> 2014-08-11 15:17:45 Telcontar ntpd 8017 - - proto: precision = 1.613 usec <3.7> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - ntp_io: estimated max descriptors: 1024, initial socket boundary: 16 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen and drop on 0 v4wildcard 0.0.0.0 UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen and drop on 1 v6wildcard :: UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 2 lo 127.0.0.1 UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 3 eth0 192.168.1.14 UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 4 lo ::1 UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 5 eth0 fe80::221:85ff:fe16:2d0b UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 6 eth0 fc00::14 UDP 123 <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - peers refreshed <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listening on routing socket on fd #23 for interface updates <3.5> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - logging to file /var/log/ntp <4.6> 2014-08-11 15:17:48 Telcontar SuSEfirewall2 - - - Firewall rules successfully set <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Found user 'avahi-autoipd' (UID 495) and group 'avahi-autoipd' (GID 491). <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Successfully called chroot(). <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Successfully dropped root privileges. <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Starting with address 169.254.3.89 <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Routable address already assigned, sleeping. <3.6> 2014-08-11 15:17:50 Telcontar systemd 1 - - Started ifup managed network interface eth0. <3.6> 2014-08-11 15:17:50 Telcontar systemd 1 - - Started ifup managed network interface eth1. <3.6> 2014-08-11 15:17:50 Telcontar network 6384 - - ..done..done..done ppp0 Startmode is 'manual' -> skipping <1.5> 2014-08-11 15:17:50 Telcontar ifup 8500 - - ppp0 Startmode is 'manual' -> skipping <3.6> 2014-08-11 15:17:50 Telcontar network 6384 - - ..skippedSetting up service network . . . . . . . . . . . . ...done <3.6> 2014-08-11 15:17:50 Telcontar systemd 1 - - Started LSB: Configure network interfaces and set up routing. <3.4> 2014-08-11 15:17:52 Telcontar pm-utils - - - Thawing the system now (04)... <0.6> 2014-08-11 15:17:55 Telcontar kernel - - - [73268.481672] Chrome_ChildThr[5680]: segfault at 0 ip 00007ffcedf71598 sp 00007ffce1821410 error 6 in libmozalloc.so[7ffcedf7 <0.4> 2014-08-11 15:18:00 Telcontar kernel - - - [73274.336014] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:18:01 Telcontar systemd 1 - - Starting Session 559 of user news. <3.4> 2014-08-11 15:18:16 Telcontar router - - - (Thawing 04) Logging the current IP= 79.159.63.177 <0.4> 2014-08-11 15:18:31 Telcontar kernel - - - [73304.416012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:19:01 Telcontar kernel - - - [73334.496014] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:19:31 Telcontar kernel - - - [73364.576016] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:20:01 Telcontar kernel - - - [73394.656015] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:20:01 Telcontar systemd 1 - - Starting Session 560 of user cer. <0.4> 2014-08-11 15:20:31 Telcontar kernel - - - [73424.736049] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:21:01 Telcontar kernel - - - [73454.816016] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:21:31 Telcontar kernel - - - [73484.896015] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:22:01 Telcontar kernel - - - [73514.976016] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:22:31 Telcontar kernel - - - [73545.056018] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:23:01 Telcontar systemd 1 - - Starting Session 561 of user news. <0.4> 2014-08-11 15:23:01 Telcontar kernel - - - [73575.136025] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:23:31 Telcontar kernel - - - [73605.216014] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:23:52 Telcontar smartd 1013 - - Device: /dev/sdb [SAT], Temperature changed -5 Celsius to 33 Celsius (Min/Max 19/38) <0.4> 2014-08-11 15:24:01 Telcontar kernel - - - [73635.296078] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:24:32 Telcontar kernel - - - [73665.376020] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:25:01 Telcontar systemd 1 - - Starting Session 562 of user news. <0.4> 2014-08-11 15:25:02 Telcontar kernel - - - [73695.456011] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:25:32 Telcontar kernel - - - [73725.536015] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:26:02 Telcontar kernel - - - [73755.616017] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:26:32 Telcontar kernel - - - [73785.696017] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:27:02 Telcontar kernel - - - [73815.776016] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:27:32 Telcontar kernel - - - [73845.856021] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:28:01 Telcontar systemd 1 - - Starting Session 563 of user news. <0.4> 2014-08-11 15:28:02 Telcontar kernel - - - [73875.936014] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:28:32 Telcontar kernel - - - [73906.016015] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:29:02 Telcontar kernel - - - [73936.096017] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:29:32 Telcontar kernel - - - [73966.176012] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:30:01 Telcontar systemd 1 - - Starting Session 564 of user root. <3.6> 2014-08-11 15:30:01 Telcontar systemd 1 - - Starting Session 565 of user cer. <1.6> 2014-08-11 15:30:01 Telcontar run-crons 8974 - - suse.de-snapper: OK <4.5> 2014-08-11 15:30:01 Telcontar su - - - (to root) root on (null) <10.3> 2014-08-11 15:30:01 Telcontar su - - - pam_systemd(su-l:session): pam_putenv: delete non-existent entry; XDG_RUNTIME_DIR <0.4> 2014-08-11 15:30:02 Telcontar kernel - - - [73996.256010] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:30:32 Telcontar kernel - - - [74026.336013] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:31:03 Telcontar kernel - - - [74056.416012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:31:33 Telcontar kernel - - - [74086.496011] XFS (sdd5): xfs_log_force: error 5 returned. <4.5> 2014-08-11 15:31:59 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't stat directory: /home/cer/.gnome2/keyrings: Input/output error <4.4> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - GLib-GObject: invalid unclassed pointer in cast to 'GkmObject' <4.3> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: gkm_object_expose_full: assertion 'GKM_IS_OBJECT (self)' failed <4.5> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't stat directory: /home/cer/.gnome2/keyrings: Input/output error <4.5> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't stat directory: /home/cer/.gnome2/keyrings: Input/output error <4.4> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't create temporary file for: /home/cer/.gnome2/keyrings/login.keyring: Input/output error <4.4> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - couldn't create login keyring: An error occurred on the device <10.3> 2014-08-11 15:32:00 Telcontar unix2_chkpwd - - - gkr-pam: the password for the login keyring was invalid. <0.4> 2014-08-11 15:32:03 Telcontar kernel - - - [74116.576018] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:32:33 Telcontar kernel - - - [74146.656011] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:33:01 Telcontar systemd 1 - - Starting Session 566 of user news. <0.4> 2014-08-11 15:33:03 Telcontar kernel - - - [74176.736068] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:33:33 Telcontar kernel - - - [74206.816012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:34:03 Telcontar kernel - - - [74236.896017] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:34:33 Telcontar kernel - - - [74266.976014] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:35:01 Telcontar systemd 1 - - Starting Session 567 of user news. <0.4> 2014-08-11 15:35:03 Telcontar kernel - - - [74297.056012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:35:33 Telcontar kernel - - - [74327.136015] XFS (sdd5): xfs_log_force: error 5 returned. <1.6> 2014-08-11 15:35:56 Telcontar run-crons 8974 - - leafnode: OK <3.6> 2014-08-11 15:35:56 Telcontar systemd 1 - - Reloading System Logging Service. <3.6> 2014-08-11 15:35:57 Telcontar systemd 1 - - Reloaded System Logging Service. <5.6> 2014-08-11 15:35:57 Telcontar rsyslogd - - - [origin software="rsyslogd" swVersion="7.4.7" x-pid="1081" x-info="http://www.rsyslog.com"] rsyslogd was HUPed <3.6> 2014-08-11 15:36:02 Telcontar systemd 1 - - Reloading System Logging Service. <3.6> 2014-08-11 15:36:02 Telcontar systemd 1 - - Reloaded System Logging Service. <0.4> 2014-08-11 15:36:03 Telcontar kernel - - - [74357.216013] XFS (sdd5): xfs_log_force: error 5 returned. <1.6> 2014-08-11 15:36:06 Telcontar run-crons 8974 - - logrotate: OK <3.2> 2014-08-11 15:36:06 Telcontar mdadm 9290 - - DegradedArray event detected on md device /dev/md0 <1.6> 2014-08-11 15:36:06 Telcontar run-crons 8974 - - mdadm: OK <4.5> 2014-08-11 15:36:06 Telcontar su - - - (to root) root on (null) <1.4> 2014-08-11 15:36:25 Telcontar run-crons 8974 - - mlocate.cron returned 143 <1.6> 2014-08-11 15:36:25 Telcontar run-crons 8974 - - packagekit-background.cron: OK <1.6> 2014-08-11 15:36:26 Telcontar run-crons 8974 - - suse-clean_catman: OK <0.4> 2014-08-11 15:36:33 Telcontar kernel - - - [74387.296018] XFS (sdd5): xfs_log_force: error 5 returned. <1.6> 2014-08-11 15:36:41 Telcontar run-crons 8974 - - suse-do_mandb: OK <1.6> 2014-08-11 15:36:57 Telcontar run-crons 8974 - - suse-texlive: OK <1.6> 2014-08-11 15:36:57 Telcontar run-crons 8974 - - suse.cron-sa-update: OK <1.6> 2014-08-11 15:36:58 Telcontar run-crons 8974 - - suse.de-backup-rc.config: OK <0.4> 2014-08-11 15:37:04 Telcontar kernel - - - [74417.376010] XFS (sdd5): xfs_log_force: error 5 returned. <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-backup-rpmdb: OK <0.4> 2014-08-11 15:37:34 Telcontar kernel - - - [74447.456013] XFS (sdd5): xfs_log_force: error 5 returned. <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-check-battery: OK <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-cron-local: OK <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-faxcron: OK <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-snapper: OK <3.6> 2014-08-11 15:38:01 Telcontar systemd 1 - - Starting Session 568 of user news. <0.4> 2014-08-11 15:38:04 Telcontar kernel - - - [74477.536013] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:38:34 Telcontar kernel - - - [74507.616019] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:39:04 Telcontar kernel - - - [74537.696013] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:39:34 Telcontar kernel - - - [74567.776014] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:40:01 Telcontar systemd 1 - - Starting Session 569 of user cer. <0.4> 2014-08-11 15:40:04 Telcontar kernel - - - [74597.856013] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:40:34 Telcontar kernel - - - [74627.936021] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:41:04 Telcontar kernel - - - [74658.016012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:41:34 Telcontar kernel - - - [74688.096019] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:42:04 Telcontar kernel - - - [74718.176018] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:42:34 Telcontar kernel - - - [74748.256017] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:43:01 Telcontar systemd 1 - - Starting Session 570 of user news. <0.4> 2014-08-11 15:43:04 Telcontar kernel - - - [74778.336012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:43:35 Telcontar kernel - - - [74808.416013] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:44:05 Telcontar kernel - - - [74838.496014] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:44:35 Telcontar kernel - - - [74868.576013] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:45:01 Telcontar systemd 1 - - Starting Session 571 of user root. <3.6> 2014-08-11 15:45:01 Telcontar systemd 1 - - Starting Session 572 of user news. <0.4> 2014-08-11 15:45:05 Telcontar kernel - - - [74898.656019] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:45:35 Telcontar kernel - - - [74928.736017] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:46:05 Telcontar kernel - - - [74958.816015] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:46:35 Telcontar kernel - - - [74988.896026] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:47:05 Telcontar kernel - - - [75018.976014] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:47:35 Telcontar kernel - - - [75049.056013] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:48:01 Telcontar systemd 1 - - Starting Session 573 of user news. <0.4> 2014-08-11 15:48:05 Telcontar kernel - - - [75079.136016] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:48:35 Telcontar kernel - - - [75109.216014] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:49:05 Telcontar kernel - - - [75139.296014] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:49:36 Telcontar kernel - - - [75169.376013] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:50:06 Telcontar kernel - - - [75199.456012] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:50:36 Telcontar kernel - - - [75229.536011] XFS (sdd5): xfs_log_force: error 5 returned. <0.4> 2014-08-11 15:51:06 Telcontar kernel - - - [75259.616013] XFS (sdd5): xfs_log_force: error 5 returned. <0.6> 2014-08-11 15:51:09 Telcontar kernel - - - [75262.721354] xfce4-session[4520]: segfault at 8 ip 00000000004164dc sp 00007fffdc291dc0 error 4 in xfce4-session[400000+2b00 <4.6> 2014-08-11 15:51:18 Telcontar systemd-logind 1021 - - Removed session 8. <10.5> 2014-08-11 15:51:18 Telcontar polkitd 4314 - - Unregistered Authentication Agent for unix-session:10 (system bus name :1.69, object path /org/gnome/PolicyKit1/Authenti <0.7> 2014-08-11 15:51:28 Telcontar kernel - - - [75282.132776] nvidia 0000:01:00.0: irq 48 for MSI/MSI-X <3.6> 2014-08-11 15:51:29 Telcontar acpid - - - 1 client rule loaded <4.6> 2014-08-11 15:51:30 Telcontar systemd-logind 1021 - - Removed session 10. <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.176020] usb 1-6: new high-speed USB device number 4 using ehci-pci <3.6> 2014-08-11 15:51:30 Telcontar systemd 1 - - Starting Session 574 of user lightdm. <4.6> 2014-08-11 15:51:30 Telcontar systemd-logind 1021 - - New session 574 of user lightdm. <4.6> 2014-08-11 15:51:30 Telcontar systemd-logind 1021 - - Linked /tmp/.X11-unix/X0 to /run/user/127/X11-display. <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291822] usb 1-6: New USB device found, idVendor=8564, idProduct=1000 <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291825] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291828] usb 1-6: Product: Mass Storage Device <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291829] usb 1-6: Manufacturer: JetFlash <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291831] usb 1-6: SerialNumber: 346YLQ4L0G5H8S2F <1.6> 2014-08-11 15:51:31 Telcontar mtp-probe - - - checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-6" <1.6> 2014-08-11 15:51:31 Telcontar mtp-probe - - - bus: 1, device: 4 was not an MTP device <0.6> 2014-08-11 15:51:31 Telcontar kernel - - - [75284.667399] usb-storage 1-6:1.0: USB Mass Storage device detected <0.6> 2014-08-11 15:51:31 Telcontar kernel - - - [75284.667502] scsi12 : usb-storage 1-6:1.0 <0.6> 2014-08-11 15:51:31 Telcontar kernel - - - [75284.667606] usbcore: registered new interface driver usb-storage <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.794904] scsi 12:0:0:0: Direct-Access JetFlash Transcend 4GB 1100 PQ: 0 ANSI: 4 <0.6> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.794976] scsi 12:0:0:0: alua: supports implicit and explicit TPGS <0.6> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796262] scsi 12:0:0:0: alua: No target port descriptors found <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796265] scsi 12:0:0:0: alua: not attached <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796396] sd 12:0:0:0: Attached scsi generic sg6 type 0 <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796888] sd 12:0:0:0: [sdf] 7913472 512-byte logical blocks: (4.05 GB/3.77 GiB) <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.797634] sd 12:0:0:0: [sdf] Write Protect is off <0.7> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.797637] sd 12:0:0:0: [sdf] Mode Sense: 43 00 00 00 <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.798386] sd 12:0:0:0: [sdf] No Caching mode page found <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.798388] sd 12:0:0:0: [sdf] Assuming drive cache: write through <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.801508] sd 12:0:0:0: [sdf] No Caching mode page found <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.801511] sd 12:0:0:0: [sdf] Assuming drive cache: write through <0.6> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.802147] sdf: sdf1 sdf2 sdf3 <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.805642] sd 12:0:0:0: [sdf] No Caching mode page found <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.805645] sd 12:0:0:0: [sdf] Assuming drive cache: write through <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.805648] sd 12:0:0:0: [sdf] Attached SCSI removable disk <0.4> 2014-08-11 15:51:36 Telcontar kernel - - - [75289.696019] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:51:41 Telcontar systemd 1 - - Starting Getty on tty2... <3.6> 2014-08-11 15:51:41 Telcontar systemd 1 - - Started Getty on tty2. <3.6> 2014-08-11 15:51:42 Telcontar systemd 1 - - Starting Getty on tty3... <3.6> 2014-08-11 15:51:42 Telcontar systemd 1 - - Started Getty on tty3. <3.6> 2014-08-11 15:51:43 Telcontar systemd 1 - - Starting Getty on tty6... <3.6> 2014-08-11 15:51:43 Telcontar systemd 1 - - Started Getty on tty6. <3.6> 2014-08-11 15:51:44 Telcontar systemd 1 - - Starting Getty on tty5... <3.6> 2014-08-11 15:51:44 Telcontar systemd 1 - - Started Getty on tty5. <3.6> 2014-08-11 15:51:45 Telcontar systemd 1 - - Starting Getty on tty4... <3.6> 2014-08-11 15:51:45 Telcontar systemd 1 - - Started Getty on tty4. <0.4> 2014-08-11 15:52:06 Telcontar kernel - - - [75319.776023] XFS (sdd5): xfs_log_force: error 5 returned. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Unmounting /data/raid... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Unmounting /data/cripta... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping /sys/devices/virtual/block/dm-0. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - message repeated 5 times: [ Stopping /sys/devices/virtual/block/dm-0.] <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Session 574 of user lightdm. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped Session 574 of user lightdm. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Session 7 of user root. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped Session 7 of user root. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping user-0.slice. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Removed slice user-0.slice. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Stop Read-Ahead Data Collection 10s After Completed Startup. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped Stop Read-Ahead Data Collection 10s After Completed Startup. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping User Manager for 1000... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping User Manager for 9... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping User Manager for 127... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping CUPS Printing Service... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping ifup managed network interface eth1... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping ifup managed network interface eth0... <3.6> 2014-08-11 15:17:44 Telcontar systemd 4377 - - message repeated 14 times: [ Time has been changed] <3.3> 2014-08-11 15:52:08 Telcontar systemd 4377 - - Failed to enqueue exit.target job: Unit exit.target failed to load: Input/output error. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Graphical Interface. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped target Graphical Interface. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: X Display Manager... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping helloworld.service... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped helloworld.service. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Multi-User System. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped target Multi-User System. <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: virus scanner daemon... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: Start the hddtemp daemon... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: mdadmd daemon monitoring MD devices... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: This services starts and stops the USB Arbitrator.... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: Supports the direct execution of binary formats.... <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: irqbalance daemon providing irq balancing on MP-machines... <3.6> 2014-08-11 15:52:09 Telcontar systemd 1 - - Stopping LSB: Set up analog joysticks... <0.4> 2014-08-11 15:52:10 Telcontar kernel - - - [75323.547122] nfsd: last server has exited, flushing export cache <5.6> 2014-08-11 15:36:02 Telcontar rsyslogd - - - [origin software="rsyslogd" swVersion="7.4.7" x-pid="1081" x-info="http://www.rsyslog.com"] rsyslogd was HUPed <5.6> 2014-08-11 15:52:11 Telcontar rsyslogd - - - [origin software="rsyslogd" swVersion="7.4.7" x-pid="1081" x-info="http://www.rsyslog.com"] exiting on signal 15. 2014-08-11 15:52:12+02:00 - Halting the system now =========================================== uptime: 15:52pm up 1 day 20:54, 1 user, load average: 5.94, 2.47, 1.22 > I am interested in the metadata dump. Ok, sure, no problem. I'm working on that, but I need to have lunch first ;-) > Also, some one hit back to back duplicate block allocation > XFS_WANT_CORRUPTED_GOTO bugs, you may want to do a metadata dump before and > after the xfs_repair in case you hit it again soon. I already have a metadata dump, and I have not attempted to repair yet (I'm doing a full dd copy of partition, and it is 400 Gigs). I will obtain another metadadump after repair, and I can upload both to google drive. But first I need sustenance :-) (At least this time I do not have any pressing thing to do on the computer...) - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF0EAREIAAYFAlPo4p4ACgkQja8UbcUWM1wGAADxAVuTUPkxG+LO29VzehJ8cSPV uItG/Puu2KbqUeCyXwD/cgu/+F7vhEeU9WEbNP5eifhmyu0T3ByDMtuKp55Rj7A= =CgSx -----END PGP SIGNATURE----- ---1463779071-1326823490-1407771294=:7326-- From bfoster@redhat.com Mon Aug 11 11:14:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B8E2F7F3F for ; Mon, 11 Aug 2014 11:14:57 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 860238F8037 for ; Mon, 11 Aug 2014 09:14:54 -0700 (PDT) X-ASG-Debug-ID: 1407773691-04cb6c4c9382090001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id I7FZc85RPtE95Lm1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 09:14:53 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7BGEmvs031981 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Aug 2014 12:14:48 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7BGElHT010048; Mon, 11 Aug 2014 12:14:47 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 1BEA112577C; Mon, 11 Aug 2014 12:14:46 -0400 (EDT) Date: Mon, 11 Aug 2014 12:14:46 -0400 From: Brian Foster To: "Carlos E. R." Cc: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140811161445.GA7696@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407773692 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Aug 11, 2014 at 05:34:46PM +0200, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > > El 2014-08-11 a las 09:57 -0500, Mark Tinguely escribió: > >On 08/11/14 09:23, Carlos E. R. wrote: > > >Where in the filesystem did the XFS_WANT_CORRUPTED_GOTO happen? > > This time? > Did not look at the log yet. Let me see... > > Here is the full log of the event. It starts prior to hibernating, all > things nominal. And ends on shutdown (had to hit reset button, despite what > log says). If you want to see entries prior to that, since boot, I can do > that. > > ... > <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.439809] XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.1 > <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.439809]. > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440155] CPU: 0 PID: 6255 Comm: kworker/0:7 Tainted: P O 3.11.10-17-desktop #1 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440322] Hardware name: MICRO-STAR INTERNATIONAL CO.,LTD MS-7516/MS-7516, BIOS V1.5 10/10/2008 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440361] Workqueue: xfs-eofblocks/sdd5 xfs_eofblocks_worker [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440364] 0000000000000001 ffffffff815a0402 000000000010c9d3 ffffffffa0c38996 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440365] ffff880211412b00 ffff88023448dd80 ffff88023fb95cb0 0000000000000001 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440366] 0000000000000000 0000000100000000 0000000000000000 0000000000000001 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440367] Call Trace: > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440377] [] dump_trace+0x88/0x310 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440380] [] show_stack_log_lvl+0xd0/0x1d0 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440382] [] show_stack+0x1c/0x50 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440385] [] dump_stack+0x50/0x89 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440399] [] xfs_free_ag_extent+0x226/0x860 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440442] [] xfs_free_extent+0xb9/0xf0 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440484] [] xfs_bmap_finish+0x11e/0x170 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440534] [] xfs_itruncate_extents+0x190/0x340 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440597] [] xfs_free_eofblocks+0x1e3/0x260 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440633] [] xfs_inode_free_eofblocks+0x6f/0x150 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440662] [] xfs_inode_ag_walk.isra.10+0x1c2/0x310 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440690] [] xfs_inode_ag_iterator_tag+0x6e/0xb0 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440718] [] xfs_eofblocks_worker+0x12/0x20 [xfs] > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440737] [] process_one_work+0x168/0x490 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440739] [] worker_thread+0x114/0x3a0 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440742] [] kthread+0xaf/0xc0 > <0.4> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440746] [] ret_from_fork+0x7c/0xb0 > <0.5> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.440751] XFS (sdd5): xfs_do_force_shutdown(0x8) called from line 916 of file /home/abuild/rpmbuild/BUILD/kernel-desktop- > <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.498979] XFS (sdd5): Corruption of in-memory data detected. Shutting down filesystem > <0.1> 2014-08-11 15:17:22 Telcontar kernel - - - [73235.499136] XFS (sdd5): Please umount the filesystem and rectify the problem(s) This reminds me that it might be interesting to tune the eofblocks scanner to be more aggressive and see if that helps reproduce. This thread that's running here normally runs every 5 minutes by default, but it can be tuned to run at a user-defined interval via the following /proc file: # cat /proc/sys/fs/xfs/speculative_prealloc_lifetime 300 I wonder if setting it to 30s or so ('echo 30 > /proc/...') and running some hibernation cycles would help... Brian > <3.6> 2014-08-11 15:17:22 Telcontar systemd 1 - - Time has been changed > <3.6> 2014-08-11 15:17:27 Telcontar acpid - - - 1 client rule loaded > <3.4> 2014-08-11 15:17:29 Telcontar pm-utils - - - Thawing (95)... > <3.5> 2014-08-11 15:17:30 Telcontar dbus 1020 - - [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper) > <3.6> 2014-08-11 15:17:30 Telcontar systemd 1 - - Starting LSB: Network time protocol daemon (ntpd)... > <0.4> 2014-08-11 15:17:30 Telcontar kernel - - - [73244.256012] XFS (sdd5): xfs_log_force: error 5 returned. > <3.5> 2014-08-11 15:17:31 Telcontar dbus 1020 - - [system] Activated service 'org.freedesktop.PackageKit' failed: Cannot launch daemon, file not found or permissions invalid > <1.5> 2014-08-11 15:17:31 Telcontar network 6315 - - redirecting to "systemctl restart network.service" > <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Stopping ifup managed network interface eth1... > <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Stopping ifup managed network interface eth0... > <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Stopping LSB: Configure network interfaces and set up routing... > <3.6> 2014-08-11 15:17:32 Telcontar systemd 1 - - Starting LSB: Configure network interfaces and set up routing... > <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - touch: cannot touch ‘/dev/.sysconfig/network/tmp/if-eth0.6352’: No such file or directory > <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - scripts/functions: line 1221: /dev/.sysconfig/network/tmp/if-eth0.6352.tmp: No such file or directory > <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - scripts/functions: line 1239: /dev/.sysconfig/network/tmp/if-eth0.6352.tmp: No such file or directory > <3.6> 2014-08-11 15:17:32 Telcontar ifdown 6352 - - cat: /dev/.sysconfig/network/tmp/if-eth0.6352: No such file or directory > <3.6> 2014-08-11 15:17:34 Telcontar ntp 6314 - - 11 Aug 15:17:34 sntp[6505]: Started sntp > <3.6> 2014-08-11 15:17:34 Telcontar ifdown 6352 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <1.5> 2014-08-11 15:17:34 Telcontar ifdown 6352 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <3.6> 2014-08-11 15:17:34 Telcontar ifdown 6351 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <1.5> 2014-08-11 15:17:34 Telcontar ifdown 6351 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <3.6> 2014-08-11 15:17:34 Telcontar network 6384 - - Setting up network interfaces: > <3.6> 2014-08-11 15:17:34 Telcontar network 6384 - - lo > <1.5> 2014-08-11 15:17:34 Telcontar ifup 6924 - - lo > <1.5> 2014-08-11 15:17:35 Telcontar ifup 6924 - - lo > <1.5> 2014-08-11 15:17:35 Telcontar ifup 6924 - - IP address: 127.0.0.1/8 > <3.6> 2014-08-11 15:17:35 Telcontar network 6384 - - lo IP address: 127.0.0.1/8 > <1.5> 2014-08-11 15:17:35 Telcontar ifup 6924 - -. > <16.3> 2014-08-11 15:17:38 Telcontar dhcpcd 7162 - - eth1: dhcpcd not running > <16.6> 2014-08-11 15:17:38 Telcontar dhcpcd 7162 - - eth1: exiting > <3.5> 2014-08-11 15:17:38 Telcontar systemd 1 - - Unit network@eth0.service entered failed state. > <3.6> 2014-08-11 15:17:38 Telcontar systemd 1 - - Starting ifup managed network interface eth0... > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Interface eth0.IPv6 no longer relevant for mDNS. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Leaving mDNS multicast group on interface eth0.IPv6 with address fc00::14. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Interface eth0.IPv4 no longer relevant for mDNS. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.14. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Withdrawing address record for fc00::14 on eth0. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Withdrawing address record for 192.168.1.14 on eth0. > <3.6> 2014-08-11 15:17:38 Telcontar ifup 7226 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <1.5> 2014-08-11 15:17:38 Telcontar ifup 7226 - - eth0 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <0.6> 2014-08-11 15:17:38 Telcontar kernel - - - [73251.792336] r8169 0000:06:00.0 eth0: link down > <0.6> 2014-08-11 15:17:38 Telcontar kernel - - - [73251.792353] r8169 0000:06:00.0 eth0: link down > <0.6> 2014-08-11 15:17:38 Telcontar kernel - - - [73251.792366] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.14. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - New relevant interface eth0.IPv4 for mDNS. > <3.6> 2014-08-11 15:17:38 Telcontar avahi-daemon 1007 - - Registering new address record for 192.168.1.14 on eth0.IPv4. > <3.6> 2014-08-11 15:17:39 Telcontar systemd 1 - - Starting ifup managed network interface eth1... > <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - ifplugd 0.28 initializing. > <0.6> 2014-08-11 15:17:39 Telcontar kernel - - - [73252.646313] r8169 0000:07:00.0 eth1: link down > <0.6> 2014-08-11 15:17:39 Telcontar kernel - - - [73252.646341] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready > <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - Using interface eth1/00:21:85:16:2D:0C with driver (version: 2.3LK-NAPI) > <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - Using detection mode: SIOCETHTOOL > <3.6> 2014-08-11 15:17:39 Telcontar ifplugd(eth1) 7541 - - Initialization complete, link beat not detected. > <1.5> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <1.5> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 is controlled by ifplugd > <3.6> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 device: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02) > <3.6> 2014-08-11 15:17:39 Telcontar ifup 7521 - - eth1 is controlled by ifplugd > <3.6> 2014-08-11 15:17:39 Telcontar systemd 1 - - Started ifup managed network interface eth1. > <0.6> 2014-08-11 15:17:40 Telcontar kernel - - - [73253.958299] r8169 0000:06:00.0 eth0: link up > <0.6> 2014-08-11 15:17:40 Telcontar kernel - - - [73253.958306] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready > <3.6> 2014-08-11 15:17:41 Telcontar avahi-daemon 1007 - - Joining mDNS multicast group on interface eth0.IPv6 with address fe80::221:85ff:fe16:2d0b. > <3.6> 2014-08-11 15:17:41 Telcontar avahi-daemon 1007 - - New relevant interface eth0.IPv6 for mDNS. > <3.6> 2014-08-11 15:17:41 Telcontar avahi-daemon 1007 - - Registering new address record for fe80::221:85ff:fe16:2d0b on eth0.*. > <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::221:85ff:fe16:2d0b. > <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Joining mDNS multicast group on interface eth0.IPv6 with address fc00::14. > <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Registering new address record for fc00::14 on eth0.*. > <3.6> 2014-08-11 15:17:42 Telcontar avahi-daemon 1007 - - Withdrawing address record for fe80::221:85ff:fe16:2d0b on eth0. > <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 11 Aug 15:17:44 sntp[6505]: Received no useable packet from 192.168.1.15! > <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 11 Aug 15:17:44 sntp[7926]: Started sntp > <3.6> 2014-08-11 15:17:44 Telcontar systemd 1 - - Time has been changed > <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 2014-08-11 15:17:44.656291 (-0100) -0.112718 +/- 0.037338 secs > <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - 2014-08-11 15:17:44.604369 (-0100) +0.0081 +/- 0.069473 secs > <3.6> 2014-08-11 15:17:44 Telcontar ntp 6314 - - Time synchronized with 0.pool.ntp.org > <4.6> 2014-08-11 15:17:45 Telcontar SuSEfirewall2 - - - Setting up rules from /etc/sysconfig/SuSEfirewall2 ... > <4.6> 2014-08-11 15:17:45 Telcontar SuSEfirewall2 - - - using default zone 'ext' for interface eth1 > <4.6> 2014-08-11 15:17:45 Telcontar SuSEfirewall2 - - - Firewall customary rules loaded from /etc/sysconfig/scripts/SuSEfirewall2-custom > <3.5> 2014-08-11 15:17:45 Telcontar ntpd 7991 - - ntpd 4.2.6p5@1.2349-o Tue Jul 22 08:26:41 UTC 2014 (1) > <3.6> 2014-08-11 15:17:45 Telcontar ntp 6314 - - Starting network time protocol daemon (NTPD)..done > <3.6> 2014-08-11 15:17:44 Telcontar systemd 1 - - Time has been changed > <3.6> 2014-08-11 15:17:45 Telcontar systemd 1 - - Started LSB: Network time protocol daemon (ntpd). > <3.5> 2014-08-11 15:17:45 Telcontar ntpd 8017 - - proto: precision = 1.613 usec > <3.7> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - ntp_io: estimated max descriptors: 1024, initial socket boundary: 16 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen and drop on 0 v4wildcard 0.0.0.0 UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen and drop on 1 v6wildcard :: UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 2 lo 127.0.0.1 UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 3 eth0 192.168.1.14 UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 4 lo ::1 UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 5 eth0 fe80::221:85ff:fe16:2d0b UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listen normally on 6 eth0 fc00::14 UDP 123 > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - peers refreshed > <3.6> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - Listening on routing socket on fd #23 for interface updates > <3.5> 2014-08-11 15:17:46 Telcontar ntpd 8017 - - logging to file /var/log/ntp > <4.6> 2014-08-11 15:17:48 Telcontar SuSEfirewall2 - - - Firewall rules successfully set > <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Found user 'avahi-autoipd' (UID 495) and group 'avahi-autoipd' (GID 491). > <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Successfully called chroot(). > <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Successfully dropped root privileges. > <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Starting with address 169.254.3.89 > <3.6> 2014-08-11 15:17:48 Telcontar avahi-autoipd(eth0) 8434 - - Routable address already assigned, sleeping. > <3.6> 2014-08-11 15:17:50 Telcontar systemd 1 - - Started ifup managed network interface eth0. > <3.6> 2014-08-11 15:17:50 Telcontar systemd 1 - - Started ifup managed network interface eth1. > <3.6> 2014-08-11 15:17:50 Telcontar network 6384 - - ..done..done..done ppp0 Startmode is 'manual' -> skipping > <1.5> 2014-08-11 15:17:50 Telcontar ifup 8500 - - ppp0 Startmode is 'manual' -> skipping > <3.6> 2014-08-11 15:17:50 Telcontar network 6384 - - ..skippedSetting up service network . . . . . . . . . . . . ...done > <3.6> 2014-08-11 15:17:50 Telcontar systemd 1 - - Started LSB: Configure network interfaces and set up routing. > <3.4> 2014-08-11 15:17:52 Telcontar pm-utils - - - Thawing the system now (04)... > <0.6> 2014-08-11 15:17:55 Telcontar kernel - - - [73268.481672] Chrome_ChildThr[5680]: segfault at 0 ip 00007ffcedf71598 sp 00007ffce1821410 error 6 in libmozalloc.so[7ffcedf7 > <0.4> 2014-08-11 15:18:00 Telcontar kernel - - - [73274.336014] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:18:01 Telcontar systemd 1 - - Starting Session 559 of user news. > <3.4> 2014-08-11 15:18:16 Telcontar router - - - (Thawing 04) Logging the current IP= 79.159.63.177 > <0.4> 2014-08-11 15:18:31 Telcontar kernel - - - [73304.416012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:19:01 Telcontar kernel - - - [73334.496014] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:19:31 Telcontar kernel - - - [73364.576016] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:20:01 Telcontar kernel - - - [73394.656015] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:20:01 Telcontar systemd 1 - - Starting Session 560 of user cer. > <0.4> 2014-08-11 15:20:31 Telcontar kernel - - - [73424.736049] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:21:01 Telcontar kernel - - - [73454.816016] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:21:31 Telcontar kernel - - - [73484.896015] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:22:01 Telcontar kernel - - - [73514.976016] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:22:31 Telcontar kernel - - - [73545.056018] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:23:01 Telcontar systemd 1 - - Starting Session 561 of user news. > <0.4> 2014-08-11 15:23:01 Telcontar kernel - - - [73575.136025] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:23:31 Telcontar kernel - - - [73605.216014] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:23:52 Telcontar smartd 1013 - - Device: /dev/sdb [SAT], Temperature changed -5 Celsius to 33 Celsius (Min/Max 19/38) > <0.4> 2014-08-11 15:24:01 Telcontar kernel - - - [73635.296078] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:24:32 Telcontar kernel - - - [73665.376020] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:25:01 Telcontar systemd 1 - - Starting Session 562 of user news. > <0.4> 2014-08-11 15:25:02 Telcontar kernel - - - [73695.456011] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:25:32 Telcontar kernel - - - [73725.536015] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:26:02 Telcontar kernel - - - [73755.616017] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:26:32 Telcontar kernel - - - [73785.696017] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:27:02 Telcontar kernel - - - [73815.776016] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:27:32 Telcontar kernel - - - [73845.856021] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:28:01 Telcontar systemd 1 - - Starting Session 563 of user news. > <0.4> 2014-08-11 15:28:02 Telcontar kernel - - - [73875.936014] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:28:32 Telcontar kernel - - - [73906.016015] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:29:02 Telcontar kernel - - - [73936.096017] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:29:32 Telcontar kernel - - - [73966.176012] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:30:01 Telcontar systemd 1 - - Starting Session 564 of user root. > <3.6> 2014-08-11 15:30:01 Telcontar systemd 1 - - Starting Session 565 of user cer. > <1.6> 2014-08-11 15:30:01 Telcontar run-crons 8974 - - suse.de-snapper: OK > <4.5> 2014-08-11 15:30:01 Telcontar su - - - (to root) root on (null) > <10.3> 2014-08-11 15:30:01 Telcontar su - - - pam_systemd(su-l:session): pam_putenv: delete non-existent entry; XDG_RUNTIME_DIR > <0.4> 2014-08-11 15:30:02 Telcontar kernel - - - [73996.256010] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:30:32 Telcontar kernel - - - [74026.336013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:31:03 Telcontar kernel - - - [74056.416012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:31:33 Telcontar kernel - - - [74086.496011] XFS (sdd5): xfs_log_force: error 5 returned. > <4.5> 2014-08-11 15:31:59 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't stat directory: /home/cer/.gnome2/keyrings: Input/output error > <4.4> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - GLib-GObject: invalid unclassed pointer in cast to 'GkmObject' > <4.3> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: gkm_object_expose_full: assertion 'GKM_IS_OBJECT (self)' failed > <4.5> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't stat directory: /home/cer/.gnome2/keyrings: Input/output error > <4.5> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't stat directory: /home/cer/.gnome2/keyrings: Input/output error > <4.4> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - Gkm: couldn't create temporary file for: /home/cer/.gnome2/keyrings/login.keyring: Input/output error > <4.4> 2014-08-11 15:32:00 Telcontar gnome-keyring-daemon 4381 - - couldn't create login keyring: An error occurred on the device > <10.3> 2014-08-11 15:32:00 Telcontar unix2_chkpwd - - - gkr-pam: the password for the login keyring was invalid. > <0.4> 2014-08-11 15:32:03 Telcontar kernel - - - [74116.576018] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:32:33 Telcontar kernel - - - [74146.656011] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:33:01 Telcontar systemd 1 - - Starting Session 566 of user news. > <0.4> 2014-08-11 15:33:03 Telcontar kernel - - - [74176.736068] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:33:33 Telcontar kernel - - - [74206.816012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:34:03 Telcontar kernel - - - [74236.896017] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:34:33 Telcontar kernel - - - [74266.976014] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:35:01 Telcontar systemd 1 - - Starting Session 567 of user news. > <0.4> 2014-08-11 15:35:03 Telcontar kernel - - - [74297.056012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:35:33 Telcontar kernel - - - [74327.136015] XFS (sdd5): xfs_log_force: error 5 returned. > <1.6> 2014-08-11 15:35:56 Telcontar run-crons 8974 - - leafnode: OK > <3.6> 2014-08-11 15:35:56 Telcontar systemd 1 - - Reloading System Logging Service. > <3.6> 2014-08-11 15:35:57 Telcontar systemd 1 - - Reloaded System Logging Service. > <5.6> 2014-08-11 15:35:57 Telcontar rsyslogd - - - [origin software="rsyslogd" swVersion="7.4.7" x-pid="1081" x-info="http://www.rsyslog.com"] rsyslogd was HUPed > <3.6> 2014-08-11 15:36:02 Telcontar systemd 1 - - Reloading System Logging Service. > <3.6> 2014-08-11 15:36:02 Telcontar systemd 1 - - Reloaded System Logging Service. > <0.4> 2014-08-11 15:36:03 Telcontar kernel - - - [74357.216013] XFS (sdd5): xfs_log_force: error 5 returned. > <1.6> 2014-08-11 15:36:06 Telcontar run-crons 8974 - - logrotate: OK > <3.2> 2014-08-11 15:36:06 Telcontar mdadm 9290 - - DegradedArray event detected on md device /dev/md0 > <1.6> 2014-08-11 15:36:06 Telcontar run-crons 8974 - - mdadm: OK > <4.5> 2014-08-11 15:36:06 Telcontar su - - - (to root) root on (null) > <1.4> 2014-08-11 15:36:25 Telcontar run-crons 8974 - - mlocate.cron returned 143 > <1.6> 2014-08-11 15:36:25 Telcontar run-crons 8974 - - packagekit-background.cron: OK > <1.6> 2014-08-11 15:36:26 Telcontar run-crons 8974 - - suse-clean_catman: OK > <0.4> 2014-08-11 15:36:33 Telcontar kernel - - - [74387.296018] XFS (sdd5): xfs_log_force: error 5 returned. > <1.6> 2014-08-11 15:36:41 Telcontar run-crons 8974 - - suse-do_mandb: OK > <1.6> 2014-08-11 15:36:57 Telcontar run-crons 8974 - - suse-texlive: OK > <1.6> 2014-08-11 15:36:57 Telcontar run-crons 8974 - - suse.cron-sa-update: OK > <1.6> 2014-08-11 15:36:58 Telcontar run-crons 8974 - - suse.de-backup-rc.config: OK > <0.4> 2014-08-11 15:37:04 Telcontar kernel - - - [74417.376010] XFS (sdd5): xfs_log_force: error 5 returned. > <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-backup-rpmdb: OK > <0.4> 2014-08-11 15:37:34 Telcontar kernel - - - [74447.456013] XFS (sdd5): xfs_log_force: error 5 returned. > <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-check-battery: OK > <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-cron-local: OK > <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-faxcron: OK > <1.6> 2014-08-11 15:37:34 Telcontar run-crons 8974 - - suse.de-snapper: OK > <3.6> 2014-08-11 15:38:01 Telcontar systemd 1 - - Starting Session 568 of user news. > <0.4> 2014-08-11 15:38:04 Telcontar kernel - - - [74477.536013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:38:34 Telcontar kernel - - - [74507.616019] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:39:04 Telcontar kernel - - - [74537.696013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:39:34 Telcontar kernel - - - [74567.776014] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:40:01 Telcontar systemd 1 - - Starting Session 569 of user cer. > <0.4> 2014-08-11 15:40:04 Telcontar kernel - - - [74597.856013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:40:34 Telcontar kernel - - - [74627.936021] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:41:04 Telcontar kernel - - - [74658.016012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:41:34 Telcontar kernel - - - [74688.096019] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:42:04 Telcontar kernel - - - [74718.176018] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:42:34 Telcontar kernel - - - [74748.256017] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:43:01 Telcontar systemd 1 - - Starting Session 570 of user news. > <0.4> 2014-08-11 15:43:04 Telcontar kernel - - - [74778.336012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:43:35 Telcontar kernel - - - [74808.416013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:44:05 Telcontar kernel - - - [74838.496014] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:44:35 Telcontar kernel - - - [74868.576013] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:45:01 Telcontar systemd 1 - - Starting Session 571 of user root. > <3.6> 2014-08-11 15:45:01 Telcontar systemd 1 - - Starting Session 572 of user news. > <0.4> 2014-08-11 15:45:05 Telcontar kernel - - - [74898.656019] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:45:35 Telcontar kernel - - - [74928.736017] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:46:05 Telcontar kernel - - - [74958.816015] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:46:35 Telcontar kernel - - - [74988.896026] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:47:05 Telcontar kernel - - - [75018.976014] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:47:35 Telcontar kernel - - - [75049.056013] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:48:01 Telcontar systemd 1 - - Starting Session 573 of user news. > <0.4> 2014-08-11 15:48:05 Telcontar kernel - - - [75079.136016] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:48:35 Telcontar kernel - - - [75109.216014] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:49:05 Telcontar kernel - - - [75139.296014] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:49:36 Telcontar kernel - - - [75169.376013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:50:06 Telcontar kernel - - - [75199.456012] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:50:36 Telcontar kernel - - - [75229.536011] XFS (sdd5): xfs_log_force: error 5 returned. > <0.4> 2014-08-11 15:51:06 Telcontar kernel - - - [75259.616013] XFS (sdd5): xfs_log_force: error 5 returned. > <0.6> 2014-08-11 15:51:09 Telcontar kernel - - - [75262.721354] xfce4-session[4520]: segfault at 8 ip 00000000004164dc sp 00007fffdc291dc0 error 4 in xfce4-session[400000+2b00 > <4.6> 2014-08-11 15:51:18 Telcontar systemd-logind 1021 - - Removed session 8. > <10.5> 2014-08-11 15:51:18 Telcontar polkitd 4314 - - Unregistered Authentication Agent for unix-session:10 (system bus name :1.69, object path /org/gnome/PolicyKit1/Authenti > <0.7> 2014-08-11 15:51:28 Telcontar kernel - - - [75282.132776] nvidia 0000:01:00.0: irq 48 for MSI/MSI-X > <3.6> 2014-08-11 15:51:29 Telcontar acpid - - - 1 client rule loaded > <4.6> 2014-08-11 15:51:30 Telcontar systemd-logind 1021 - - Removed session 10. > <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.176020] usb 1-6: new high-speed USB device number 4 using ehci-pci > <3.6> 2014-08-11 15:51:30 Telcontar systemd 1 - - Starting Session 574 of user lightdm. > <4.6> 2014-08-11 15:51:30 Telcontar systemd-logind 1021 - - New session 574 of user lightdm. > <4.6> 2014-08-11 15:51:30 Telcontar systemd-logind 1021 - - Linked /tmp/.X11-unix/X0 to /run/user/127/X11-display. > <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291822] usb 1-6: New USB device found, idVendor=8564, idProduct=1000 > <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291825] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291828] usb 1-6: Product: Mass Storage Device > <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291829] usb 1-6: Manufacturer: JetFlash > <0.6> 2014-08-11 15:51:30 Telcontar kernel - - - [75284.291831] usb 1-6: SerialNumber: 346YLQ4L0G5H8S2F > <1.6> 2014-08-11 15:51:31 Telcontar mtp-probe - - - checking bus 1, device 4: "/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-6" > <1.6> 2014-08-11 15:51:31 Telcontar mtp-probe - - - bus: 1, device: 4 was not an MTP device > <0.6> 2014-08-11 15:51:31 Telcontar kernel - - - [75284.667399] usb-storage 1-6:1.0: USB Mass Storage device detected > <0.6> 2014-08-11 15:51:31 Telcontar kernel - - - [75284.667502] scsi12 : usb-storage 1-6:1.0 > <0.6> 2014-08-11 15:51:31 Telcontar kernel - - - [75284.667606] usbcore: registered new interface driver usb-storage > <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.794904] scsi 12:0:0:0: Direct-Access JetFlash Transcend 4GB 1100 PQ: 0 ANSI: 4 > <0.6> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.794976] scsi 12:0:0:0: alua: supports implicit and explicit TPGS > <0.6> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796262] scsi 12:0:0:0: alua: No target port descriptors found > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796265] scsi 12:0:0:0: alua: not attached > <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796396] sd 12:0:0:0: Attached scsi generic sg6 type 0 > <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.796888] sd 12:0:0:0: [sdf] 7913472 512-byte logical blocks: (4.05 GB/3.77 GiB) > <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.797634] sd 12:0:0:0: [sdf] Write Protect is off > <0.7> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.797637] sd 12:0:0:0: [sdf] Mode Sense: 43 00 00 00 > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.798386] sd 12:0:0:0: [sdf] No Caching mode page found > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.798388] sd 12:0:0:0: [sdf] Assuming drive cache: write through > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.801508] sd 12:0:0:0: [sdf] No Caching mode page found > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.801511] sd 12:0:0:0: [sdf] Assuming drive cache: write through > <0.6> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.802147] sdf: sdf1 sdf2 sdf3 > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.805642] sd 12:0:0:0: [sdf] No Caching mode page found > <0.3> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.805645] sd 12:0:0:0: [sdf] Assuming drive cache: write through > <0.5> 2014-08-11 15:51:32 Telcontar kernel - - - [75285.805648] sd 12:0:0:0: [sdf] Attached SCSI removable disk > <0.4> 2014-08-11 15:51:36 Telcontar kernel - - - [75289.696019] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:51:41 Telcontar systemd 1 - - Starting Getty on tty2... > <3.6> 2014-08-11 15:51:41 Telcontar systemd 1 - - Started Getty on tty2. > <3.6> 2014-08-11 15:51:42 Telcontar systemd 1 - - Starting Getty on tty3... > <3.6> 2014-08-11 15:51:42 Telcontar systemd 1 - - Started Getty on tty3. > <3.6> 2014-08-11 15:51:43 Telcontar systemd 1 - - Starting Getty on tty6... > <3.6> 2014-08-11 15:51:43 Telcontar systemd 1 - - Started Getty on tty6. > <3.6> 2014-08-11 15:51:44 Telcontar systemd 1 - - Starting Getty on tty5... > <3.6> 2014-08-11 15:51:44 Telcontar systemd 1 - - Started Getty on tty5. > <3.6> 2014-08-11 15:51:45 Telcontar systemd 1 - - Starting Getty on tty4... > <3.6> 2014-08-11 15:51:45 Telcontar systemd 1 - - Started Getty on tty4. > <0.4> 2014-08-11 15:52:06 Telcontar kernel - - - [75319.776023] XFS (sdd5): xfs_log_force: error 5 returned. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Unmounting /data/raid... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Unmounting /data/cripta... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping /sys/devices/virtual/block/dm-0. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - message repeated 5 times: [ Stopping /sys/devices/virtual/block/dm-0.] > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Session 574 of user lightdm. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped Session 574 of user lightdm. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Session 7 of user root. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped Session 7 of user root. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping user-0.slice. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Removed slice user-0.slice. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Stop Read-Ahead Data Collection 10s After Completed Startup. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped Stop Read-Ahead Data Collection 10s After Completed Startup. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping User Manager for 1000... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping User Manager for 9... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping User Manager for 127... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping CUPS Printing Service... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping ifup managed network interface eth1... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping ifup managed network interface eth0... > <3.6> 2014-08-11 15:17:44 Telcontar systemd 4377 - - message repeated 14 times: [ Time has been changed] > <3.3> 2014-08-11 15:52:08 Telcontar systemd 4377 - - Failed to enqueue exit.target job: Unit exit.target failed to load: Input/output error. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Graphical Interface. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped target Graphical Interface. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: X Display Manager... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping helloworld.service... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped helloworld.service. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping Multi-User System. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopped target Multi-User System. > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: virus scanner daemon... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: Start the hddtemp daemon... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: mdadmd daemon monitoring MD devices... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: This services starts and stops the USB Arbitrator.... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: Supports the direct execution of binary formats.... > <3.6> 2014-08-11 15:52:08 Telcontar systemd 1 - - Stopping LSB: irqbalance daemon providing irq balancing on MP-machines... > <3.6> 2014-08-11 15:52:09 Telcontar systemd 1 - - Stopping LSB: Set up analog joysticks... > <0.4> 2014-08-11 15:52:10 Telcontar kernel - - - [75323.547122] nfsd: last server has exited, flushing export cache > <5.6> 2014-08-11 15:36:02 Telcontar rsyslogd - - - [origin software="rsyslogd" swVersion="7.4.7" x-pid="1081" x-info="http://www.rsyslog.com"] rsyslogd was HUPed > <5.6> 2014-08-11 15:52:11 Telcontar rsyslogd - - - [origin software="rsyslogd" swVersion="7.4.7" x-pid="1081" x-info="http://www.rsyslog.com"] exiting on signal 15. > 2014-08-11 15:52:12+02:00 - Halting the system now =========================================== uptime: 15:52pm up 1 day 20:54, 1 user, load average: 5.94, 2.47, 1.22 > > > > >I am interested in the metadata dump. > > Ok, sure, no problem. I'm working on that, but I need to have lunch first ;-) > > > >Also, some one hit back to back duplicate block allocation > >XFS_WANT_CORRUPTED_GOTO bugs, you may want to do a metadata dump before > >and after the xfs_repair in case you hit it again soon. > > I already have a metadata dump, and I have not attempted to repair yet (I'm > doing a full dd copy of partition, and it is 400 Gigs). I will obtain > another metadadump after repair, and I can upload both to google drive. > > But first I need sustenance :-) > > (At least this time I do not have any pressing thing to do on the > computer...) > > - -- Cheers > Carlos E. R. > > (from 13.1 x86_64 "Bottle" (Minas Tirith)) > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (GNU/Linux) > > iF0EAREIAAYFAlPo4p4ACgkQja8UbcUWM1wGAADxAVuTUPkxG+LO29VzehJ8cSPV > uItG/Puu2KbqUeCyXwD/cgu/+F7vhEeU9WEbNP5eifhmyu0T3ByDMtuKp55Rj7A= > =CgSx > -----END PGP SIGNATURE----- > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From fanael4@gmail.com Mon Aug 11 11:19:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.2 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,MISSING_HEADERS,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B63017F4E for ; Mon, 11 Aug 2014 11:19:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 35BD6AC005 for ; Mon, 11 Aug 2014 09:19:08 -0700 (PDT) X-ASG-Debug-ID: 1407773946-04cbb0508a96cf0001-NocioJ Received: from mail-qc0-f193.google.com (mail-qc0-f193.google.com [209.85.216.193]) by cuda.sgi.com with ESMTP id lTiZk0OVILucQ9lg (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 09:19:06 -0700 (PDT) X-Barracuda-Envelope-From: fanael4@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.216.193 X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.193] Received: by mail-qc0-f193.google.com with SMTP id c9so689622qcz.4 for ; Mon, 11 Aug 2014 09:19:06 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.193] X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.193] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type:content-transfer-encoding; bh=92lLuJgme+AV/X1KQwGISmYlCULJY/j1YEGiWc+STOc=; b=ZOqbeeoE/o+BCrJSFglMaigs850Llq3YJGgLDH/GS7/U1F7T7JpH7NZ1P5lSrFS/J8 ZzIOb6kfbeEVOghGNZ5S2fAsGCZiczx7bYV/CNpZVN7mUiVe1yuMCJj3MhoAIJejb6mS k+O6sXkwVh+9QW7oJFExvYYxo8YPiYBBXoXZKtOA40W5j+3hlSaliFrPLo3zXFlaWXZm mfNimPXKUgI2P+SpCkTD99dzNKnpiHRnTxEEE68FLtnGeQnIaNYxtDecb2RE9KnpSoWk g4TOO7uQ1W7g+CbIwIiXbCOYqwCh5NhtNHINPLZBG95gBIyWEbEn9pxhATROYX4J/ak/ f6SA== MIME-Version: 1.0 X-Received: by 10.140.104.213 with SMTP id a79mr29805644qgf.46.1407773946079; Mon, 11 Aug 2014 09:19:06 -0700 (PDT) Received: by 10.224.182.200 with HTTP; Mon, 11 Aug 2014 09:19:06 -0700 (PDT) In-Reply-To: References: <20140809005404.GG26465@dastard> <20140811043219.GJ26465@dastard> Date: Mon, 11 Aug 2014 18:19:06 +0200 Message-ID: Subject: Re: Verifier fixes backported to stable kernels? From: Fanael Linithien X-ASG-Orig-Subj: Re: Verifier fixes backported to stable kernels? Cc: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-qc0-f193.google.com[209.85.216.193] X-Barracuda-Start-Time: 1407773946 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.21 X-Barracuda-Spam-Status: No, SCORE=1.21 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, MISSING_HEADERS X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8326 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 1.21 MISSING_HEADERS Missing To: header > 2014-08-11 6:32 GMT+02:00 Dave Chinner : > Ok, but please use the "one-line format" when quoting commits. > > I.e. this: > > $ git log --oneline -n 4 ad3714b > [=E2=80=A6] > > is much more informative to the reader without a git tree to look up > commits. Okay, I'll try to remember. > As it is, those commits have not yet been sent to Linus, hence they > won't yet be accepted by the stable kernel folk. And because they > haven't been sent to Linus yet, I can redo the commits in that topic > branch with the needed stable tags. I've got to add a couple more > fixes that need to go to stable, too, so a pull req won't happen for > a couple of days yet.... Okay, so I really need to patch it manually. From robin.listas@gmail.com Mon Aug 11 12:05:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F11EE7F3F for ; Mon, 11 Aug 2014 12:05:25 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id CC98B8F8040 for ; Mon, 11 Aug 2014 10:05:22 -0700 (PDT) X-ASG-Debug-ID: 1407776717-04cbb0508d9a1a0001-NocioJ Received: from mail-we0-f181.google.com (mail-we0-f181.google.com [74.125.82.181]) by cuda.sgi.com with ESMTP id PKjEIh7BJHWQqnTK (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 10:05:18 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.181 Received: by mail-we0-f181.google.com with SMTP id k48so8698380wev.26 for ; Mon, 11 Aug 2014 10:05:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=Q96VhsAFi2kT6RZU/CyBW4V/obSq7vOAbDhNwj/SEFQ=; b=vZltelNfXQo+PoJdUpC6y2yKbtmW5X3uwkw9Ag6X3CHbtruI4P3apHES8aXLOBqJA6 CNDaDfzkLAARuVkRZzIpCjS60sHaa+IUmZ3Uz9C9QEahLsEsTTgU/cLQ0QP9I6fb43VF 0IqAcSzKmDCOK62oUg2O8oNnPP9E2kQgveTxUySx7qjDofWx0GTMt86blrvfc3jddYPr DUg0X18upNkQO7Lh9CmsguL5E5KePmpW2aW319go467s413QPwmNr5xbeXFKthi3iSFe 83JecYOPg4iE9CkzDHGkKbKQTS0nMdKz0XO62gCjyt+sZFGiu9vMtKCjkr19oUtMfFQM 3kjw== X-Received: by 10.194.121.65 with SMTP id li1mr56645118wjb.10.1407776717141; Mon, 11 Aug 2014 10:05:17 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id ge8sm45952177wib.4.2014.08.11.10.05.15 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 10:05:16 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id A2FC4185A7D for ; Mon, 11 Aug 2014 19:05:13 +0200 (CEST) Date: Mon, 11 Aug 2014 19:05:00 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <20140811144359.GA10217@laptop.bfoster> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-664183082-1407776713=:7326" X-Barracuda-Connect: mail-we0-f181.google.com[74.125.82.181] X-Barracuda-Start-Time: 1407776717 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8327 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-664183082-1407776713=:7326 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 El 2014-08-11 a las 16:58 +0200, Carlos E. R. escribió: > Ok, will do. > > I will create a backup of my partition, with xfsdump, after attempting > repair of the partition, and reboot, and see (without the reformat cycle). > > At this instant I'm doing a full dd of the partition, just in case it > becomes useful. linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # xfs_repair -V xfs_repair version 3.1.11 It is a live system, so I acan't update it. If I boot from the main system, that has a more modern xfs_repair, systemd will attempt mount and automated repair, and we will not get any logs. linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # xfs_repair -v /dev/sdd5 Phase 1 - find and verify superblock... - block cache size set to 753952 entries Phase 2 - using internal log - zero log... zero_log: head block 65662 tail block 65607 ERROR: The filesystem has valuable metadata changes in a log which needs to be replayed. Mount the filesystem to replay the log, and unmount it before re-running xfs_repair. If you are unable to mount the filesystem, then use the -L option to destroy the log and attempt a repair. Note that destroying the log may cause corruption -- please attempt a mount of the filesystem before doing this. linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # mount -v /dev/sdd5 mnt/ mount: /dev/sdd5 mounted on /run/media/linux/d_storage/xfs_disaster_home/20140811/mnt. linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # umount mnt linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # dmesg: [10266.034290] XFS (sdd5): Mounting Filesystem [10266.073739] XFS (sdd5): Starting recovery (logdev: internal) [10266.690325] XFS (sdd5): Ending recovery (logdev: internal) linux@linux:~> dmesg --ctime [Mon Aug 11 16:47:12 2014] XFS (sdd5): Mounting Filesystem [Mon Aug 11 16:47:12 2014] XFS (sdd5): Starting recovery (logdev: internal) [Mon Aug 11 16:47:12 2014] XFS (sdd5): Ending recovery (logdev: internal) linux@linux:~> linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # xfs_repair -v /dev/sdd5 Phase 1 - find and verify superblock... - block cache size set to 753952 entries Phase 2 - using internal log - zero log... zero_log: head block 65700 tail block 65700 - scan filesystem freespace and inode maps... block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 agf_freeblks 27745492, counted 27745496 in ag 1 sb_fdblocks 115565042, counted 115565046 - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 2 - agno = 1 - agno = 3 - agno = 0 Phase 5 - rebuild AG headers and trees... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... XFS_REPAIR Summary Mon Aug 11 16:48:08 2014 Phase Start End Duration Phase 1: 08/11 16:47:49 08/11 16:47:49 Phase 2: 08/11 16:47:49 08/11 16:47:52 3 seconds Phase 3: 08/11 16:47:52 08/11 16:48:07 15 seconds Phase 4: 08/11 16:48:07 08/11 16:48:07 Phase 5: 08/11 16:48:07 08/11 16:48:07 Phase 6: 08/11 16:48:07 08/11 16:48:07 Phase 7: 08/11 16:48:07 08/11 16:48:07 Total run time: 18 seconds done linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # I don't understand all it says, but aparently it does not detect any problem. dmesg doesn't have any more entries. Now I'm going to create an xfsdump of it, and reboot, without rebuilding. Then I'll upload the metadata to google drive. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPo98kACgkQja8UbcUWM1y78wD+MznL/4Ht53XAOw+CN/4ThhqQ P4cN85akyVugU+T6zusA/313Z3PHezJe2oUTx1dFpQpV8Lf+LSgtlHVZ0M4xL+sz =/iid -----END PGP SIGNATURE----- ---1463779071-664183082-1407776713=:7326-- From robin.listas@gmail.com Mon Aug 11 12:09:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3B2477F3F for ; Mon, 11 Aug 2014 12:09:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id E90828F8052 for ; Mon, 11 Aug 2014 10:09:07 -0700 (PDT) X-ASG-Debug-ID: 1407776945-04bdf06ef79bd90001-NocioJ Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by cuda.sgi.com with ESMTP id 13SuzWmPPoePdbM6 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 10:09:05 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.172 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.172] Received: by mail-wi0-f172.google.com with SMTP id n3so4596605wiv.17 for ; Mon, 11 Aug 2014 10:09:04 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.172] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.172] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type:content-id; bh=567PNAHofymfooHot3kW2wopKyBAZAToiyHWKFtkWC8=; b=KhUAOV9OyEDDh/zdBVe0mh4zKi/L4xylaoJmDDOp60r0ss+igIkKppoESXqnUD8+VR UD3S94e56gvMSqXMnH23vikiyDphzcXHzw713zPHfqovMsACqlT6rsWyE/0uiFlQBmfl YZLGgJF74XxyWznzKcWX9KTH3XR/aA0vJSj2B/KcX6FyLsp9SwND2xgb8k1LFgLGbvhp k0htlFQLXSkA2TBylm5r+72SamLkwySf01MXIJG2CZUjKW93ZUsL8Hk1hx/0XdDAauh6 z88JFEdS076mPlQL0XiELGyE7+74mtZZax7FtPMv0S6fPr9rgXIhXJIdPHSFkH6XrPb4 qpQQ== X-Received: by 10.180.105.6 with SMTP id gi6mr26561895wib.81.1407776944767; Mon, 11 Aug 2014 10:09:04 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id u7sm45992739wif.3.2014.08.11.10.09.03 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 10:09:04 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id E2D02185A7D for ; Mon, 11 Aug 2014 19:09:01 +0200 (CEST) Date: Mon, 11 Aug 2014 19:08:53 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20140811161445.GA7696@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <53E8D9F6.7080704@sgi.com> <20140811161445.GA7696@bfoster.bfoster> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1568027554-1407776878=:7326" Content-ID: X-Barracuda-Connect: mail-wi0-f172.google.com[209.85.212.172] X-Barracuda-Start-Time: 1407776945 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8327 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1568027554-1407776878=:7326 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Content-ID: El 2014-08-11 a las 12:14 -0400, Brian Foster escribió: > On Mon, Aug 11, 2014 at 05:34:46PM +0200, Carlos E. R. wrote: > This reminds me that it might be interesting to tune the eofblocks > scanner to be more aggressive and see if that helps reproduce. This > thread that's running here normally runs every 5 minutes by default, but > it can be tuned to run at a user-defined interval via the following > /proc file: > > # cat /proc/sys/fs/xfs/speculative_prealloc_lifetime > 300 > > I wonder if setting it to 30s or so ('echo 30 > /proc/...') and running > some hibernation cycles would help... Ok, I can try that. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPo+K0ACgkQja8UbcUWM1zxVgD+LFcJ3OBRJhn9LVrwFxf98H1u n7ubtexF8XXKWcUdjv0A/Ail1kzWxIgQkevunUQ/3UnbthtWqnyniHP4qKVUWv8m =AauB -----END PGP SIGNATURE----- ---1463779071-1568027554-1407776878=:7326-- From BATV+54fbffd5884d93615064+4005+infradead.org+hch@bombadil.srs.infradead.org Mon Aug 11 13:02:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 50A547F3F for ; Mon, 11 Aug 2014 13:02:39 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D0BE8AC002 for ; Mon, 11 Aug 2014 11:02:35 -0700 (PDT) X-ASG-Debug-ID: 1407780153-04bdf06ef9a0e00001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id DAyAkUnRpvkKzfzx (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 11:02:33 -0700 (PDT) X-Barracuda-Envelope-From: BATV+54fbffd5884d93615064+4005+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XGtvP-000077-6g; Mon, 11 Aug 2014 18:02:27 +0000 Date: Mon, 11 Aug 2014 11:02:27 -0700 From: Christoph Hellwig To: Jan ??ul??k , Dave Chinner Cc: Brian Foster , Eric Sandeen , XFS mail list Subject: Re: symlink loop for /lib64/libhandle.so Message-ID: <20140811180227.GA30281@infradead.org> X-ASG-Orig-Subj: Re: symlink loop for /lib64/libhandle.so References: <1404898212.7231.12.camel@jtulak> <20140709132836.GA65226@bfoster.bfoster> <20140710134851.GA26652@infradead.org> <1405009872.31068.22.camel@jtulak> <53BEC1E7.1070904@sandeen.net> <1405075678.28203.56.camel@jtulak> <1405325087.3196.6.camel@jtulak> <20140714082607.GA19882@infradead.org> <20140715154857.GA14716@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140715154857.GA14716@infradead.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1407780153 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Dave, can you pick up this patch for xfsprogs? On Tue, Jul 15, 2014 at 08:48:57AM -0700, Christoph Hellwig wrote: > Hi Jan, > > there were still some small isues with the patch format, I've attached > a version of your patch that has the expected format. > > Note that I also changed it to only check the canonical names instead of > testing the passed in one and the one readlink was called on. This > should be enough I think, but please test that it still works for you. > > Thanks for tracking this down! > From: Jan Tulak > Subject: [PATCH] libhandle: fix instalation for symlinked /usr > > Canonicalize the pathnames for PKG_LIB_DIR and PKG_ROOT_LIB_DIR before > checking if they are the same. This is required for Fedora which doesn't > have a separate /usr/lib directory anymore. > > Reported-by: Jan Tulak > Signed-off-by: Jan Tulak > > diff --git a/include/buildmacros b/include/buildmacros > index 7a01880..4e4e8fa 100644 > --- a/include/buildmacros > +++ b/include/buildmacros > @@ -76,10 +76,11 @@ INSTALL_LTLIB_DEV = \ > ../$(INSTALL) -m 644 $(LIBNAME).lai $(PKG_LIB_DIR)/$(LIBNAME).la ; \ > ../$(INSTALL) -m 755 -d $(PKG_ROOT_LIB_DIR); \ > ../$(INSTALL) -T so_base $(LIBNAME).lai $(PKG_ROOT_LIB_DIR); \ > - if test "x$(PKG_LIB_DIR)" != "x$(PKG_ROOT_LIB_DIR)" ; then \ > - ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).a $(PKG_ROOT_LIB_DIR)/$(LIBNAME).a; \ > - ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).la $(PKG_ROOT_LIB_DIR)/$(LIBNAME).la; \ > - ../$(INSTALL) -S $(PKG_ROOT_LIB_DIR)/$(LIBNAME).so $(PKG_LIB_DIR)/$(LIBNAME).so; \ > + if [ "x$(shell readlink -f $(PKG_LIB_DIR))" != \ > + "x$(shell readlink -f $(PKG_ROOT_LIB_DIR))"; ]; then \ > + ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).a $(PKG_ROOT_LIB_DIR)/$(LIBNAME).a; \ > + ../$(INSTALL) -S $(PKG_LIB_DIR)/$(LIBNAME).la $(PKG_ROOT_LIB_DIR)/$(LIBNAME).la; \ > + ../$(INSTALL) -S $(PKG_ROOT_LIB_DIR)/$(LIBNAME).so $(PKG_LIB_DIR)/$(LIBNAME).so; \ > fi > else > INSTALL_LTLIB_DEV = $(INSTALL_LTLIB_STATIC) > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs ---end quoted text--- From BATV+54fbffd5884d93615064+4005+infradead.org+hch@bombadil.srs.infradead.org Mon Aug 11 13:03:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 114347F3F for ; Mon, 11 Aug 2014 13:03:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id E2B928F8064 for ; Mon, 11 Aug 2014 11:03:24 -0700 (PDT) X-ASG-Debug-ID: 1407780200-04cb6c4c9489330001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id sZ5Huxapez8XIFCj (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 11:03:20 -0700 (PDT) X-Barracuda-Envelope-From: BATV+54fbffd5884d93615064+4005+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XGtwF-0000Mu-UN; Mon, 11 Aug 2014 18:03:19 +0000 Date: Mon, 11 Aug 2014 11:03:19 -0700 From: Christoph Hellwig To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/2] xfs: don't log inode unless extent shift makes extent modifications Message-ID: <20140811180319.GA469@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/2] xfs: don't log inode unless extent shift makes extent modifications References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> <1407523766-62233-2-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1407523766-62233-2-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1407780200 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8328 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, Reviewed-by: Christoph Hellwig From BATV+54fbffd5884d93615064+4005+infradead.org+hch@bombadil.srs.infradead.org Mon Aug 11 13:03:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1CD017F3F for ; Mon, 11 Aug 2014 13:03:47 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id DE119304043 for ; Mon, 11 Aug 2014 11:03:46 -0700 (PDT) X-ASG-Debug-ID: 1407780225-04bdf06ef6a1000001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 7Hs4saKMazVrE2bx (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 11 Aug 2014 11:03:45 -0700 (PDT) X-Barracuda-Envelope-From: BATV+54fbffd5884d93615064+4005+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XGtwf-0000Um-C3; Mon, 11 Aug 2014 18:03:45 +0000 Date: Mon, 11 Aug 2014 11:03:45 -0700 From: Christoph Hellwig To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Message-ID: <20140811180345.GB469@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> <1407523766-62233-3-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1407523766-62233-3-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1407780225 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8329 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, Reviewed-by: Christoph Hellwig From tinguely@sgi.com Mon Aug 11 16:27:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7F51F7F3F for ; Mon, 11 Aug 2014 16:27:16 -0500 (CDT) Received: from dhcp-128-162-232-117.americas.sgi.com (dhcp-128-162-232-117.americas.sgi.com [128.162.232.117]) by relay1.corp.sgi.com (Postfix) with ESMTP id 46C5E8F8037; Mon, 11 Aug 2014 14:27:13 -0700 (PDT) Message-ID: <53E93530.4070902@sgi.com> Date: Mon, 11 Aug 2014 16:27:12 -0500 From: Mark Tinguely User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0 MIME-Version: 1.0 To: "Carlos E. R." CC: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit On 08/11/14 10:34, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > > El 2014-08-11 a las 09:57 -0500, Mark Tinguely escribió: >> On 08/11/14 09:23, Carlos E. R. wrote: > >> Where in the filesystem did the XFS_WANT_CORRUPTED_GOTO happen? > > This time? > Did not look at the log yet. Let me see... > > Here is the full log of the event. It starts prior to hibernating, all > things nominal. And ends on shutdown (had to hit reset button, despite > what log says). If you want to see entries prior to that, since boot, I > can do that. > ... so XFS gave a forced shutdown after the machine came back from hibernation. After replaying the log, there were no errors in xfs_repair. We should have quiesced the metadata/log before freezing xfs. Was there a lot of items in the log? --Mark. From robin.listas@gmail.com Mon Aug 11 16:32:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5E6407F50 for ; Mon, 11 Aug 2014 16:32:16 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 338A38F8037 for ; Mon, 11 Aug 2014 14:32:16 -0700 (PDT) X-ASG-Debug-ID: 1407792733-04cb6c4c9593fa0001-NocioJ Received: from mail-wg0-f50.google.com (mail-wg0-f50.google.com [74.125.82.50]) by cuda.sgi.com with ESMTP id gA7mabcdz7a9oiY5 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 14:32:14 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.50 Received: by mail-wg0-f50.google.com with SMTP id n12so8904048wgh.21 for ; Mon, 11 Aug 2014 14:32:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=WBFd37kZHbciN3Atl3Tpshb/djvGSvgUOL7M2jPjatc=; b=wi3gyVD6hxDyWiJ8ZMic7sbH7y43NxsaruJrYUe4JpR4kqNuWtq+6zDGPMU5bBqxK7 ey100t1kWGLkj8ufct4EFKPqeP4n3MALAPrykKGJdPuL3Cnv/HbeeRSJt7ahiJAGQm0E SZat4YDxYhCbDy1A21dDOtQ0e+jn4oZ83IlO8JRQl7jFmkVj14rhut+i35toZJzf2Euj l2GhMEvKo+QvHvkdTVklgQMtj0Mc8e4z7RKXaNyTj53QOBqm7byBMxWT9xMplgxBQoCc m0xUeT5WYdfOpurMuzbuk3wuu71fyIn95OiwtGvjURZE6HMn4PhKYcirkW6/4QVKXom4 fmCA== X-Received: by 10.180.20.14 with SMTP id j14mr25460957wie.48.1407792733312; Mon, 11 Aug 2014 14:32:13 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id a4sm48194434wie.21.2014.08.11.14.32.11 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 14:32:12 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id 62866183EEA for ; Mon, 11 Aug 2014 23:32:10 +0200 (CEST) Date: Mon, 11 Aug 2014 23:31:44 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <20140811144359.GA10217@laptop.bfoster> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1142169509-1407792730=:17839" X-Barracuda-Connect: mail-wg0-f50.google.com[74.125.82.50] X-Barracuda-Start-Time: 1407792734 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8336 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1142169509-1407792730=:17839 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 El 2014-08-11 a las 19:05 +0200, Carlos E. R. escribió: > linux:/run/media/linux/d_storage/xfs_disaster_home/20140811 # xfs_repair -V > xfs_repair version 3.1.11 > > It is a live system, so I acan't update it. If I boot from the main ... > Now I'm going to create an xfsdump of it, and reboot, without rebuilding. > Then I'll upload the metadata to google drive. I have just booted the main system, in text mode, logged as root. Look: Telcontar:/data/storage_d/xfs_disaster_home/20140811 # time xfs_metadump -g -w /dev/sdc5 tgtfile_20140811_obfus_after_repair_bis Copied 231552 of 231552 inodes (3 of 4 AGs) xfs_metadump: invalid dqblk inode number (-1) Copying log real 0m20.044s user 0m1.527s sys 0m1.174s Telcontar:/data/storage_d/xfs_disaster_home/20140811 # Telcontar:/data/storage_d/xfs_disaster_home/20140811 # xfs_metadump -V xfs_metadump version 3.2.1 And that was after running xfs_repair 3.2.1, which found nothing... Does that give any ideas? - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPpNloACgkQja8UbcUWM1xa/wD/XzXCXoTni1LL13iBgD7XzTrv 1D6PLaMyIYsLiE9K0PYA/j7sXcWkvZV27fpfIdlU4ECyid6iULLdlQN4oSE56O2C =rZOy -----END PGP SIGNATURE----- ---1463779071-1142169509-1407792730=:17839-- From robin.listas@gmail.com Mon Aug 11 16:50:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 290B17F53 for ; Mon, 11 Aug 2014 16:50:36 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id CB63F304053 for ; Mon, 11 Aug 2014 14:50:35 -0700 (PDT) X-ASG-Debug-ID: 1407793833-04bdf06ef8ad7a0001-NocioJ Received: from mail-we0-f182.google.com (mail-we0-f182.google.com [74.125.82.182]) by cuda.sgi.com with ESMTP id ztK7qYRjsy3iutFV (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 14:50:34 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.182 Received: by mail-we0-f182.google.com with SMTP id k48so9153443wev.41 for ; Mon, 11 Aug 2014 14:50:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=0T+FZEQTHDaUMNX4iJ5+IeRV+oV7JAImpFbf1Ca0YIw=; b=dZLTmeIslbxeXmRdhEy0lMgOcWq3QNoIIDhXJq6VCmrwnjS6xnRxoqpabfjHCurrtj x2C1IxZyP9Tu/+gPHE7cy0aVrskIKwFfkbNz62sJlurVYUNrq84tKzrHQoWFNO0KIQNv XQS2GNHae0VXCCquIsYdVir1qeBXUnaKHqF/pX3+ol/DEFs0wpvCyz94yMAdx5T9exMu t7ZOE5Bn3cwdzHSe4QoctSeUa+OAFCBfh3Dlpea2y6W9V6JyWC0d53T2Ufprn7JqlXU6 kVgWZjGYTgVQi/ayi5Owzv+Qy/BKCb5UgzI9qgyR61gak9OGx+ncTKlEAArjxc+dFhgJ 0ndQ== X-Received: by 10.180.211.71 with SMTP id na7mr23869197wic.14.1407793832873; Mon, 11 Aug 2014 14:50:32 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id u7sm48403569wif.3.2014.08.11.14.50.31 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 14:50:32 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id E6BAB183EEA for ; Mon, 11 Aug 2014 23:50:29 +0200 (CEST) Date: Mon, 11 Aug 2014 23:50:20 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <53E93530.4070902@sgi.com> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-481454962-1407793829=:17839" X-Barracuda-Connect: mail-we0-f182.google.com[74.125.82.182] X-Barracuda-Start-Time: 1407793833 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8337 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-481454962-1407793829=:17839 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 El 2014-08-11 a las 16:27 -0500, Mark Tinguely escribió: > On 08/11/14 10:34, Carlos E. R. wrote: > > so XFS gave a forced shutdown after the machine came back from hibernation. > After replaying the log, there were no errors in xfs_repair. > > We should have quiesced the metadata/log before freezing xfs. Was there a lot > of items in the log? Sorry, what log? The /var/log/messages file? I posted it in full, from before the hibernation to powerdown. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPpOqUACgkQja8UbcUWM1xpewD/XaCmyL60x0lqs8PuoA9xfSTn 8CNxtpVX78L3O/1RsdYA/3U9CIA0uOCI9Lk4t0KO5xiLLjCZi/+AlvUtAbCfCQCB =VEcc -----END PGP SIGNATURE----- ---1463779071-481454962-1407793829=:17839-- From david@fromorbit.com Mon Aug 11 16:52:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 34E147F55 for ; Mon, 11 Aug 2014 16:52:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 005678F8066 for ; Mon, 11 Aug 2014 14:52:12 -0700 (PDT) X-ASG-Debug-ID: 1407793930-04cb6c4c9394a90001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id cGYTkmKdcD9TTof7 for ; Mon, 11 Aug 2014 14:52:11 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjMLAO456VN5LDJ8PGdsb2JhbABagw2IWKZ9AQEBAQEBBqYjAYERFwUBAQEBODaEAwEBBAEnExwjBQsIAw4KCSUPBSUDBxoTiDoHw1QXGIVkiVAHhEwFnC6Yaisv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 12 Aug 2014 07:22:08 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XGxVf-0007dr-9W; Tue, 12 Aug 2014 07:52:07 +1000 Date: Tue, 12 Aug 2014 07:52:07 +1000 From: Dave Chinner To: Brian Foster Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140811215207.GS20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140115014503.GQ3469@dastard> <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140811132057.GA1186@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407793930 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8337 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Mon, Aug 11, 2014 at 09:20:57AM -0400, Brian Foster wrote: > On Sun, Aug 10, 2014 at 03:20:50PM +0300, Alex Lyakas wrote: > > On Wed, Aug 6, 2014 at 6:20 PM, Brian Foster wrote: > > > On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: ..... > > >> But I believe, my analysis shows that during the mount sequence XFS does not > > >> wait properly for all the bios to complete, before failing the mount > > >> sequence back to the caller. > > >> > > > > > > As an experiment, what about the following? Compile tested only and not > > > safe for general use. ... > > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > > > index cd7b8ca..fbcf524 100644 > > > --- a/fs/xfs/xfs_buf.c > > > +++ b/fs/xfs/xfs_buf.c > > > @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( > > > * case nothing will ever complete. It returns the I/O error code, if any, or > > > * 0 if there was no error. > > > */ > > > -int > > > -xfs_buf_iowait( > > > - xfs_buf_t *bp) > > > +static int > > > +__xfs_buf_iowait( > > > + struct xfs_buf *bp, > > > + bool skip_error) > > > { > > > trace_xfs_buf_iowait(bp, _RET_IP_); > > > > > > - if (!bp->b_error) > > > + if (skip_error || !bp->b_error) > > > wait_for_completion(&bp->b_iowait); > > > > > > trace_xfs_buf_iowait_done(bp, _RET_IP_); > > > return bp->b_error; > > > } > > > > > > +int > > > +xfs_buf_iowait( > > > + struct xfs_buf *bp) > > > +{ > > > + return __xfs_buf_iowait(bp, false); > > > +} > > > + > > > xfs_caddr_t > > > xfs_buf_offset( > > > xfs_buf_t *bp, > > > @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( > > > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > > > > > list_del_init(&bp->b_list); > > > - error2 = xfs_buf_iowait(bp); > > > + error2 = __xfs_buf_iowait(bp, true); > > > xfs_buf_relse(bp); > > > if (!error) > > > error = error2; Not waiting here on buffer error should not matter. Any buffer that is under IO and requires completion should be referenced, and that means it should be caught and waited on by xfs_wait_buftarg() in the mount failure path after log recovery fails. > > > --- > > I think that this patch fixes the problem. I tried reproducing it like > > 30 times, and it doesn't happen with this patch. Dropping this patch > > reproduces the problem within 1 or 2 tries. Thanks! > > What are next steps? How to make it "safe for general use"? > > > > Ok, thanks for testing. I think that implicates the caller bypassing the > expected blocking with the right sequence of log recovery I/Os and > device failure. TBH, I'd still like to see the specifics, if possible. > Could you come up with a generic reproducer for this? I think a metadump > of the fs with the dirty log plus whatever device failure simulation > hack you're using would suffice. The real issue is we don't know exactly what code is being tested (it's 3.8 + random bug fix backports + custom code). Even if we have a reproducer there's no guarantee it will reproduce on a current kernel. IOWs, we are stumbling around in the dark bashing our heads against everything in the room, and that just wastes everyone's time. We need a reproducer that triggers on a current, unmodified kernel release. You can use dm-faulty to error out all writes just like you are doing with your custom code. See xfstests::tests/generic/321 and common/dmflakey for to do this. Ideally the reproducer is in a form that xfstests can use.... If you can't reproduce it on an upstream kernel, then git bisect is your friend. It will find the commit that fixed the problem you are seeing.... > The ideal fix is not yet clear to me. We are not even that far along - the root cause of the bug is not at all clear to me. :/ Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 11 16:56:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 096087F57 for ; Mon, 11 Aug 2014 16:56:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id C359330404E for ; Mon, 11 Aug 2014 14:56:01 -0700 (PDT) X-ASG-Debug-ID: 1407794158-04bdf06ef7adbc0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id vQgSHQXrv69PLqSC for ; Mon, 11 Aug 2014 14:55:59 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjILAEc76VN5LDJ8PGdsb2JhbABagw2IWKZ9AQEBAQEBBqYjAYERFwUBAQEBODaEBAEFOhwjEAgDDgoJJQ8FJQMHGhOIQcNUFxiFZIlQB4RMBZwumGorLw Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 12 Aug 2014 07:25:58 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XGxZN-0007ed-KX; Tue, 12 Aug 2014 07:55:57 +1000 Date: Tue, 12 Aug 2014 07:55:57 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 0/2] xfs: for-next file collapse bug fixes Message-ID: <20140811215557.GT20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 0/2] xfs: for-next file collapse bug fixes References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1407523766-62233-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407794159 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8337 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 08, 2014 at 02:49:24PM -0400, Brian Foster wrote: > Hi all, > > I've seen collapse range fall over during some recent stress testing. > I'm running fsx and 16 fsstress threads in parallel to reproduce. Note > that the fsstress workload doesn't need to be on the same fs (I suspect > a sync() is a trigger). These patches are what has fallen out so far... > > The first patch stems from the fact that the error caused an fs shutdown > that appeared to be unnecessary. I was initially going to skip the inode > log on any error, but on closer inspection it seems like we expect to > abort/shutdown if something has in fact been changed, so this modifies > the code to reduce that shutdown window. The second patch deals with the > actual collapse failure by fixing up the locking. > > Note that I still reproduced at least one collapse failure even with > these fixes, so there could be more at play here with the > implementation: > > XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 5535 of file fs/xfs/libxfs/xfs_bmap.c. Caller xfs_collapse_file_space+0x1af/0x280 [xfs] > > This took significantly longer to reproduce and I don't yet have a feel > for how reproducible it is in general. In the meantime, these two seemed > relatively straightforward and incremental... They look good, but it's too late for the 3.17 merge window. However, given that we've got other fixes that need to go to 3.17 but are also too late (Chris Mason's direct IO invalidation fixes) I'll plan these for 3.17-rc2 or so. Cheers, Dave. -- Dave Chinner david@fromorbit.com From tinguely@sgi.com Mon Aug 11 16:56:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 72D1A7F5A for ; Mon, 11 Aug 2014 16:56:58 -0500 (CDT) Received: from dhcp-128-162-232-117.americas.sgi.com (dhcp-128-162-232-117.americas.sgi.com [128.162.232.117]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4185A8F8065 for ; Mon, 11 Aug 2014 14:56:58 -0700 (PDT) Message-ID: <53E93C29.1020103@sgi.com> Date: Mon, 11 Aug 2014 16:56:57 -0500 From: Mark Tinguely User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit On 08/11/14 16:50, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > > El 2014-08-11 a las 16:27 -0500, Mark Tinguely escribió: >> On 08/11/14 10:34, Carlos E. R. wrote: > >> >> so XFS gave a forced shutdown after the machine came back from >> hibernation. After replaying the log, there were no errors in xfs_repair. >> >> We should have quiesced the metadata/log before freezing xfs. Was >> there a lot of items in the log? > > Sorry, what log? The /var/log/messages file? I posted it in full, from > before the hibernation to powerdown. > > - -- Cheers > Carlos E. R. Sorry, I was referring to the XFS log. If you had a metadata dump before mounting/xfs_repair, then you can display the xfs log using the xfs_logprint. --Mark. From robin.listas@gmail.com Mon Aug 11 17:01:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1C8E17F55 for ; Mon, 11 Aug 2014 17:01:37 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9BF33AC002 for ; Mon, 11 Aug 2014 15:01:33 -0700 (PDT) X-ASG-Debug-ID: 1407794491-04bdf06ef9ae000001-NocioJ Received: from mail-we0-f179.google.com (mail-we0-f179.google.com [74.125.82.179]) by cuda.sgi.com with ESMTP id oF9VxXVcUBpGACNG (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 15:01:31 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.179 Received: by mail-we0-f179.google.com with SMTP id u57so9167000wes.38 for ; Mon, 11 Aug 2014 15:01:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type:content-id; bh=IKQ7gLTJ6qvS6A8UVGFYAtMH0mY0rCJ7mOw/JkmsAJc=; b=0qs9QVK6uaPrjjO6tlQ368Rmvd8qwGTYYyqAP6xrQDHROFgVUTI3O4ytK5NwTLzMqu bRFacOIdIIfqlqqikdCP3QylydUWgUUn+FytOJkkS2g896rfuk9JP80OEqsOBhAu1kpr Zz88yxyQJzhFrOmJs3ZUzrSbRmtNf4GsN59bwPlQMuziMPmwLbHCU+DL7waQCnSp7TYX ijMEUCcLXGTHRB7SJDOHlT7k1/fhFGsDbdZlvbMzONhkTaZsxvpDeY0kRFaHwF2s8c2g KNJGjZYKnE49TSfL3VSZipd6w16tNNVBl4PsPwsNNbMKqepntf4HgVA3ZD+VOGUmWoHB ejLQ== X-Received: by 10.194.110.201 with SMTP id ic9mr577543wjb.60.1407794490746; Mon, 11 Aug 2014 15:01:30 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id ex2sm48438588wic.24.2014.08.11.15.01.29 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 15:01:30 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id BF2C5183EEA for ; Tue, 12 Aug 2014 00:01:27 +0200 (CEST) Date: Tue, 12 Aug 2014 00:01:16 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <53E938CC.4010103@sgi.com> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <20140811144359.GA10217@laptop.bfoster> <53E938CC.4010103@sgi.com> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1124162502-1407793872=:17839" Content-ID: X-Barracuda-Connect: mail-we0-f179.google.com[74.125.82.179] X-Barracuda-Start-Time: 1407794491 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8337 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1124162502-1407793872=:17839 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Content-ID: El 2014-08-11 a las 16:42 -0500, Mark Tinguely escribió: > On 08/11/14 16:31, Carlos E. R. wrote: >> Does that give any ideas? > Which version of Linux? Telcontar:~ # cat /etc/os-release NAME=openSUSE VERSION="13.1 (Bottle)" VERSION_ID="13.1" PRETTY_NAME="openSUSE 13.1 (Bottle) (x86_64)" ID=opensuse ANSI_COLOR="0;32" CPE_NAME="cpe:/o:opensuse:opensuse:13.1" BUG_REPORT_URL="https://bugs.opensuse.org" HOME_URL="https://opensuse.org/" ID_LIKE="suse" Telcontar:~ # Telcontar:~ # uname -a Linux Telcontar 3.11.10-17-desktop #1 SMP PREEMPT Mon Jun 16 15:28:13 UTC 2014 (fba7c1f) x86_64 x86_64 x86_64 GNU/Linux Telcontar:~ # rpm -q xfsprogs xfsprogs-3.2.1-40.1.x86_64 > Did you get a metadata dump before the xfs_repair? Yes, sure. I said so on another post. I'm on the process of starting up the machine, when I noticed that error: xfs_metadump: invalid dqblk inode number (-1) being the first time I see that error, I'm wondering if going ahead with mounting and using, as explained on other posts today, or wait for different instructions from you people. I'll try meanwhile to upload the metadata files using another machine. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPpPTcACgkQja8UbcUWM1wm3wD+KTezrh+/SRAFFIVGCeJcHkgE MeJ5PMzceqDlUDOb4Q0A/jO8O5TkHCS1oDqI3zfdIExTUiel1GAcbMDNkk501Cf+ =6qE9 -----END PGP SIGNATURE----- ---1463779071-1124162502-1407793872=:17839-- From robin.listas@gmail.com Mon Aug 11 17:36:48 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 11BDF7F53 for ; Mon, 11 Aug 2014 17:36:48 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E2F3D30404E for ; Mon, 11 Aug 2014 15:36:44 -0700 (PDT) X-ASG-Debug-ID: 1407796602-04cbb0508dae370001-NocioJ Received: from mail-wi0-f177.google.com (mail-wi0-f177.google.com [209.85.212.177]) by cuda.sgi.com with ESMTP id NHqwAdnAE6CPJOk5 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 15:36:43 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.177 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.177] Received: by mail-wi0-f177.google.com with SMTP id ho1so4933782wib.16 for ; Mon, 11 Aug 2014 15:36:42 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.177] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.177] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type:content-id; bh=F4sjoEpzCNjKWBghgkhZGYselSmOsi3hyaetBF4HueY=; b=mFO9QaCmxwsdbcqYuguvw6GNFINWW7PPEx7HfY+oMcWuOk95w/URCkqJrxbzvIQ4y0 +PztDJ22o1Y1EyTlASFXQcvg3N9NMt6Tyf0KiLvsa3V3BgDQPuQQbr1jF3OwcnOiaI/4 DXaON+b1LcN4V6Tg6pAxC2P9NO9Lh5IkhgA+nQgLpOzY+UD7trDZN9nb9m83Hi22LuHw vR97UypKm+Hubw15C6z5FEuaGu72t7a69XRHIJVbWKZA9va71xmZS2leZ6EAaY8HAp+q uNIveBDF7/ZQLsMUf/t6ELCiwXUKGhu9W0DVA+/rVvpk2NVvqk1weYO86YX6DnRDCC3E vJiA== X-Received: by 10.194.174.4 with SMTP id bo4mr717701wjc.84.1407796602102; Mon, 11 Aug 2014 15:36:42 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id dc3sm48756451wib.9.2014.08.11.15.36.40 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 15:36:41 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id EB380183EEA for ; Tue, 12 Aug 2014 00:36:38 +0200 (CEST) Date: Tue, 12 Aug 2014 00:36:31 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <53E93C29.1020103@sgi.com> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. 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The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-366605848-1407795555=:17839 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Content-ID: El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > On 08/11/14 16:50, Carlos E. R. wrote: >>> We should have quiesced the metadata/log before freezing xfs. Was >>> there a lot of items in the log? >> >> Sorry, what log? The /var/log/messages file? I posted it in full, from >> before the hibernation to powerdown. >> > > Sorry, I was referring to the XFS log. > > If you had a metadata dump before mounting/xfs_repair, then you can display > the xfs log using the xfs_logprint. Ah! Ok :-) Telcontar:/data/storage_d/xfs_disaster_home/20140811 # xfs_logprint -f tgtfile_20140811 xfs_logprint: data device: 0xffffffffffffffff log device: 0xffffffffffffffff daddr: 0 length: 820476 cycle: 3 version: 2 lsn: 3,65730 tail_lsn: 3,65561 length of Log Record: 1024 prev offset: 65667 num ops: 10 uuid: 3a35756d-1b63-4b9b-9b3a-c12c8951b678 format: little endian linuxh_size: 32768 - ---------------------------------------------------------------------------- Oper (0): tid: b80486ac len: 0 clientid: TRANS flags: START - ---------------------------------------------------------------------------- Oper (1): tid: b80486ac len: 16 clientid: TRANS flags: none TRAN: type: CHECKPOINT tid: b80486ac num_items: 7 - ---------------------------------------------------------------------------- Oper (2): tid: b80486ac len: 56 clientid: TRANS flags: none INODE: #regs: 3 ino: 0x20fcbc83 flags: 0x5 dsize: 96 blkno: 264281664 len: 16 boff: 768 Oper (3): tid: b80486ac len: 96 clientid: TRANS flags: none INODE CORE magic 0x494e mode 0100644 version 2 format 2 nlink 1 uid 1000 gid 100 atime 0x53b9d2fd mtime 0x53c05b34 ctime 0x53c05b34 size 0x90f8 nblocks 0xa extsize 0x0 nextents 0x6 naextents 0x0 forkoff 0 dmevmask 0x0 dmstate 0x0 flags 0x0 gen 0xd2610167 Oper (4): tid: b80486ac len: 96 clientid: TRANS flags: none EXTENTS inode data - ---------------------------------------------------------------------------- Oper (5): tid: b80486ac len: 56 clientid: TRANS flags: none INODE: #regs: 2 ino: 0x6048329c flags: 0x1 dsize: 0 blkno: 770365760 len: 16 boff: 7168 Oper (6): tid: b80486ac len: 96 clientid: TRANS flags: none INODE CORE magic 0x494e mode 0100600 version 2 format 2 nlink 1 uid 1000 gid 100 atime 0x53c05b25 mtime 0x53c05b34 ctime 0x53c05b34 size 0x0 nblocks 0x0 extsize 0x0 nextents 0x0 naextents 0x0 forkoff 0 dmevmask 0x0 dmstate 0x0 flags 0x0 gen 0x69e7b261 - ---------------------------------------------------------------------------- Oper (7): tid: b80486ac len: 56 clientid: TRANS flags: none INODE: #regs: 2 ino: 0x600814ef flags: 0x1 dsize: 0 blkno: 768264816 len: 16 boff: 3840 Oper (8): tid: b80486ac len: 96 clientid: TRANS flags: none INODE CORE magic 0x494e mode 0100600 version 2 format 2 nlink 1 uid 1000 gid 100 atime 0x53b6ef00 mtime 0x53c05b34 ctime 0x53c05b34 size 0x1 nblocks 0x1 extsize 0x0 nextents 0x1 naextents 0x0 forkoff 0 dmevmask 0x0 dmstate 0x0 flags 0x0 gen 0x97ccc0ee - ---------------------------------------------------------------------------- Oper (9): tid: b80486ac len: 0 clientid: TRANS flags: COMMIT ============================================================================ cycle: 3 version: 2 lsn: 3,65733 tail_lsn: 3,65561 length of Log Record: 32256 prev offset: 65730 num ops: 176 uuid: 3a35756d-1b63-4b9b-9b3a-c12c8951b678 format: little endian linux h_size: 32768 ********************************************************************** * ERROR: data block=379316 * ********************************************************************** Bad data in log Telcontar:/data/storage_d/xfs_disaster_home/20140811 # But I have no idea what any of that means. Notice that the metadata was obtained using tools version 3.1.11, but the print above was made using tools version 3.2.1 - in case that has any relevance. And, same operation on the metadata obtained after running repairs: Telcontar:/data/storage_d/xfs_disaster_home/20140811 # xfs_logprint -f tgtfile_20140811_after_repair xfs_logprint: data device: 0xffffffffffffffff log device: 0xffffffffffffffff daddr: 0 length: 820428 Log inconsistent or not a log (last==0, first!=1) xfs_logprint: after 7 zeroed blocks ********************************************************************** * ERROR: found data after zeroed blocks block=13 * ********************************************************************** Bad log - data after zeroed blocks Telcontar:/data/storage_d/xfs_disaster_home/20140811 # xfs_logprint -f tgtfile_20140811_after_repair_bis xfs_logprint: data device: 0xffffffffffffffff log device: 0xffffffffffffffff daddr: 0 length: 820428 Log inconsistent or not a log (last==0, first!=1) xfs_logprint: after 7 zeroed blocks ********************************************************************** * ERROR: found data after zeroed blocks block=13 * ********************************************************************** Bad log - data after zeroed blocks Telcontar:/data/storage_d/xfs_disaster_home/20140811 # Telcontar:/data/storage_d/xfs_disaster_home/20140811 # file tgtfile_20140811* tgtfile_20140811: XFS filesystem metadump image tgtfile_20140811_after_repair: XFS filesystem metadump image tgtfile_20140811_after_repair_bis: XFS filesystem metadump image tgtfile_20140811_obfus: XFS filesystem metadump image tgtfile_20140811_obfus_after_repair: XFS filesystem metadump image tgtfile_20140811_obfus_after_repair_bis: XFS filesystem metadump image Telcontar:/data/storage_d/xfs_disaster_home/20140811 # tgtfile_20140811 is the metadata obtained before any mount or repairs, using tools 3.1.11. tgtfile_20140811_after_repair is the metadata obtained after mount and repair, using tools 3.1.11. tgtfile_20140811_after_repair_bis is the metadata obtained after mount and repair, using tools 3.2.1 I will now attempt to upload the three obfuscated files. Sizes are quite different, after compression: Telcontar:/data/storage_d/xfs_disaster_home/20140811/tmp # ls -lh total 51M 26M Aug 11 16:21 tgtfile_20140811_obfus.xz 13M Aug 11 18:54 tgtfile_20140811_obfus_after_repair.xz 13M Aug 11 23:16 tgtfile_20140811_obfus_after_repair_bis.xz but all of them are about 401M before compression. The upload will take long, my ADSL upload is 0.3M/s at most. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPpRXYACgkQja8UbcUWM1zsXwD/aGq1sLIqPi6U7nOTeB66B5CO dTpXM/WZtk2gJl7JhvwBAIOeh+TkHN1+rdOQj3z80KG17IuOHpu/wrrPlZ+YqMPR =3JHj -----END PGP SIGNATURE----- ---1463779071-366605848-1407795555=:17839-- From robin.listas@gmail.com Mon Aug 11 19:17:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 578CB7F61 for ; Mon, 11 Aug 2014 19:17:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2AC4B8F8037 for ; Mon, 11 Aug 2014 17:17:22 -0700 (PDT) X-ASG-Debug-ID: 1407802634-04cb6c4c939aa50001-NocioJ Received: from mail-we0-f175.google.com (mail-we0-f175.google.com [74.125.82.175]) by cuda.sgi.com with ESMTP id 4WgZxznjgmF6GrD7 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 11 Aug 2014 17:17:14 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.175 Received: by mail-we0-f175.google.com with SMTP id t60so9069849wes.6 for ; Mon, 11 Aug 2014 17:17:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type:content-id; bh=WmfjflTRhZSi1m8+Qk4+IysarzN3yHItSGf/jnlKngw=; b=fMcQrcgEwTx+2pZjOOMs2/5wRg3vpM3BX3GVgQyeeEOrf9WjjA0ltJhilwqtyy0UKV DI3bRkBCKX8NOdaQLdws2e3mCWjt8OS8TYfm3yqT2pI3fkSoraA3DVTQoqpj5SrL19YH zXYVomUXxkIg1SKcxEebFQYB0ujLp099Db7U+2GThz+RPue36ppPVFKFBRUOOWozU5Uc C7G0q1zRTqGsG7szkoF6U7AnSU2EiDhLGFYiIlTeg0pQAZZAghpjdDGKx15MJkLu5hoE GqNAnRJSu1/z9KIodnFDKfIcmoqxxS5MOKRSCBrSnWZivkkLuMnihvY/DXSSMhRjx7AB MgMA== X-Received: by 10.180.93.104 with SMTP id ct8mr28615642wib.30.1407802633880; Mon, 11 Aug 2014 17:17:13 -0700 (PDT) Received: from minas-tirith.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id wi9sm5183691wjc.23.2014.08.11.17.17.12 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Aug 2014 17:17:13 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by minas-tirith.valinor (Postfix) with ESMTP id A05E5182668 for ; Tue, 12 Aug 2014 02:17:10 +0200 (CEST) Date: Tue, 12 Aug 2014 02:17:00 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@minas-tirith.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463779071-1850205973-1407800504=:21410" Content-ID: X-Barracuda-Connect: mail-we0-f175.google.com[74.125.82.175] X-Barracuda-Start-Time: 1407802634 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8343 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463779071-1850205973-1407800504=:21410 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Content-ID: El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: > El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > but all of them are about 401M before compression. The upload will take > long, my ADSL upload is 0.3M/s at most. I have shared (view) on google drive a folder with the three files. Both Brian Foster and Mark Tinguely should have got a link on the mail from me. If somebody else wants access, just tell me. - -- Cheers Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlPpXQYACgkQja8UbcUWM1wQ9gEAl1WI24UDArdlWHh3J2ih3AV3 nMTwDRqTrT0Rk2BJOB8A/1BOzzn3/IX16sPCsYoqGEyXNHcNXWBHENShlyWzJGUr =W+BG -----END PGP SIGNATURE----- ---1463779071-1850205973-1407800504=:21410-- From david@fromorbit.com Mon Aug 11 20:17:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 315ED7F63 for ; Mon, 11 Aug 2014 20:17:59 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E5C06304032 for ; Mon, 11 Aug 2014 18:17:58 -0700 (PDT) X-ASG-Debug-ID: 1407806275-04bdf06ef6b4da0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id qaMW2Wn2wU4adZ2s for ; Mon, 11 Aug 2014 18:17:56 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvkYAKVq6VN5LDJ8PGdsb2JhbABagw2BKYcwpnkGoDqFawGBExcFAQEBATg2hAQBBScTHCMQCAMOCgklDwUlAwcaE4hBw3sXGIVkiGxkB4RMBZwyjAIEjGQrL4EF Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 12 Aug 2014 10:47:45 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XH0id-000862-Fj; Tue, 12 Aug 2014 11:17:43 +1000 Date: Tue, 12 Aug 2014 11:17:43 +1000 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140812011743.GU20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53E61A9C.4020807@fb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407806275 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8345 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who only > invalidate pages during DIO writes. > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial ranges in > the page. This means a DIO read can zero out part of the page cache > page, and it is possible the page will stay in cache. > > buffered reads will find an up to date page with zeros instead of the > data actually on disk. > > This patch fixes things by using invalidate_inode_pages2_range instead. > It preserves the page cache invalidation, but won't zero any pages. > > Signed-off-by: Chris Mason > cc: stable@vger.kernel.org > > --- > fs/xfs/xfs_file.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 1f66779..023d575 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -295,7 +295,8 @@ xfs_file_read_iter( > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > } > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > + pos >> PAGE_CACHE_SHIFT, -1); > } > xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > } I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire occasionally. It always fires immediately before some other ASSERT() they fires with a block map/page cache inconsistency. It usually fires in a test that runs fsx or fsstress. The fsx failures are new regressions caused by this patch. e.g. generic/263 hasn't failed for months on any of my systems and this patch causes it to fail reliably on my 1k block size test config. I'm going to assume at this point that this is uncovering some other existing bug, but it means I'm not going to push this fix until I understand what is actually happening here. It is possible that what I'm seeing is related to Brian's collapse range bug fixes, but until I applied this direct IO patch I'd never seen fsx throw ASSERTs in xfs_bmap_shift_extents().... Either way, more testing and understanding is needed. Cheers, Dave. -- Dave Chinner david@fromorbit.com From felipemonteiro.carvalho@gmail.com Tue Aug 12 05:50:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 39F0B7F3F for ; Tue, 12 Aug 2014 05:50:00 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D9DF48F8052 for ; Tue, 12 Aug 2014 03:49:59 -0700 (PDT) X-ASG-Debug-ID: 1407840598-04bdf06ef9ca9e0001-NocioJ Received: from mail-pa0-f51.google.com (mail-pa0-f51.google.com [209.85.220.51]) by cuda.sgi.com with ESMTP id xke5evgA7D6fyMo3 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 12 Aug 2014 03:49:58 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.220.51 Received: by mail-pa0-f51.google.com with SMTP id ey11so12829860pad.38 for ; Tue, 12 Aug 2014 03:49:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=KPl5yhBWG+Bq6qCaIh9cOSLNahTF39twd8Ff5pa9c68=; b=dMteqAsOZFpBhXYgy6eOCIpOfsLqf7oeJAxaQVaf8gLxXIxTO+55Itv2G8evgmbqsv DnqaFyY8h7MwwQYMeGmfdYEeLNmlAf3FG/yh6BxBUwu+6mGsVFhPZOufkafbLMq9shkk x5mzQqQ/DmbEYqlGke0Jg+6dpEQgDvuamtGd9BZCEje07RpIYOUNy6GjvdyICXyjkwHi yvBHaphw8o8gY3BoDaCJPn9Jk1lON9RKKA9F5+al3Ne7lkuT/j4nOeVttxPmX5CXN3lc ILRVvkB4OI2Qn/xmpYU0WGB3UnOFTocma7SQTBFTavZAg6mx7+ppAxx03ciCG3QVS2XL Oxww== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.70.103.132 with SMTP id fw4mr3512016pdb.99.1407840598140; Tue, 12 Aug 2014 03:49:58 -0700 (PDT) Received: by 10.66.164.69 with HTTP; Tue, 12 Aug 2014 03:49:58 -0700 (PDT) Date: Tue, 12 Aug 2014 12:49:58 +0200 Message-ID: Subject: Location of backup superblocks From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Location of backup superblocks To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pa0-f51.google.com[209.85.220.51] X-Barracuda-Start-Time: 1407840598 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8358 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hello, I am trying to recover a XFS partition (or series of partitions) where the main superblock was corrupted, and I see that there are multiple superblock copies. I'd like to guess the partition start and size also. I see that the partition size can be calculated with sb_blocksize* sb_dblocks But what about the partition start? I think I can guess it based in the position of the found superblocks. Any ideas where is the code that writes to disk those backup superblocks? So far to me it looks like that their position is calculated as disk_size / 4 rounded (nearest rounding?) to a multiple of sb_blocksize, but having the exact code part would be better of course =) Or even better, a list of backup superblock positions... thanks, -- Felipe Monteiro de Carvalho From bfoster@redhat.com Tue Aug 12 07:03:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7688B7F3F for ; Tue, 12 Aug 2014 07:03:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id EEEB2AC006 for ; Tue, 12 Aug 2014 05:03:50 -0700 (PDT) X-ASG-Debug-ID: 1407845025-04cb6c4c93af850001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gDWOw4wlVdjwCR2Q (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 12 Aug 2014 05:03:46 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7CC3hdd004879 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Aug 2014 08:03:43 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7CC3gVg015899; Tue, 12 Aug 2014 08:03:42 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E7A2E12577C; Tue, 12 Aug 2014 08:03:41 -0400 (EDT) Date: Tue, 12 Aug 2014 08:03:41 -0400 From: Brian Foster To: Dave Chinner Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140812120341.GA46654@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140811215207.GS20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407845025 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 12, 2014 at 07:52:07AM +1000, Dave Chinner wrote: > On Mon, Aug 11, 2014 at 09:20:57AM -0400, Brian Foster wrote: > > On Sun, Aug 10, 2014 at 03:20:50PM +0300, Alex Lyakas wrote: > > > On Wed, Aug 6, 2014 at 6:20 PM, Brian Foster wrote: > > > > On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: > ..... > > > >> But I believe, my analysis shows that during the mount sequence XFS does not > > > >> wait properly for all the bios to complete, before failing the mount > > > >> sequence back to the caller. > > > >> > > > > > > > > As an experiment, what about the following? Compile tested only and not > > > > safe for general use. > ... > > > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > > > > index cd7b8ca..fbcf524 100644 > > > > --- a/fs/xfs/xfs_buf.c > > > > +++ b/fs/xfs/xfs_buf.c > > > > @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( > > > > * case nothing will ever complete. It returns the I/O error code, if any, or > > > > * 0 if there was no error. > > > > */ > > > > -int > > > > -xfs_buf_iowait( > > > > - xfs_buf_t *bp) > > > > +static int > > > > +__xfs_buf_iowait( > > > > + struct xfs_buf *bp, > > > > + bool skip_error) > > > > { > > > > trace_xfs_buf_iowait(bp, _RET_IP_); > > > > > > > > - if (!bp->b_error) > > > > + if (skip_error || !bp->b_error) > > > > wait_for_completion(&bp->b_iowait); > > > > > > > > trace_xfs_buf_iowait_done(bp, _RET_IP_); > > > > return bp->b_error; > > > > } > > > > > > > > +int > > > > +xfs_buf_iowait( > > > > + struct xfs_buf *bp) > > > > +{ > > > > + return __xfs_buf_iowait(bp, false); > > > > +} > > > > + > > > > xfs_caddr_t > > > > xfs_buf_offset( > > > > xfs_buf_t *bp, > > > > @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( > > > > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > > > > > > > list_del_init(&bp->b_list); > > > > - error2 = xfs_buf_iowait(bp); > > > > + error2 = __xfs_buf_iowait(bp, true); > > > > xfs_buf_relse(bp); > > > > if (!error) > > > > error = error2; > > Not waiting here on buffer error should not matter. Any buffer that > is under IO and requires completion should be referenced, and that > means it should be caught and waited on by xfs_wait_buftarg() in the > mount failure path after log recovery fails. > I think that assumes the I/O is successful. Looking through xlog_recover_buffer_pass2() as an example, we read the buffer which should return with b_hold == 1. The delwri queue increments the hold and we xfs_buf_relse() in the return path (i.e., buffer is now held by the delwri queue awaiting submission). Sometime later we delwri_submit()... xfs_buf_iorequest() does an xfs_buf_hold() and xfs_buf_rele() within that single function. The delwri_submit() releases its hold after xfs_buf_iowait(), which I guess at that point bp should go onto the lru (b_hold back to 1 in xfs_buf_rele(). Indeed, the caller has lost scope of the buffer at this point. So unless I miss something or got the lifecycle wrong here, which is easily possible ;), this all hinges on xfs_buf_iowait(). That's where the last hold forcing the buffer to stay around goes away. xfs_buftarg_wait_rele() will dispose the buffer if b_hold == 1. If xfs_buf_iowait() is racy in the event of I/O errors via the bio callback, I think this path is susceptible just the same. > > > > --- > > > I think that this patch fixes the problem. I tried reproducing it like > > > 30 times, and it doesn't happen with this patch. Dropping this patch > > > reproduces the problem within 1 or 2 tries. Thanks! > > > What are next steps? How to make it "safe for general use"? > > > > > > > Ok, thanks for testing. I think that implicates the caller bypassing the > > expected blocking with the right sequence of log recovery I/Os and > > device failure. TBH, I'd still like to see the specifics, if possible. > > Could you come up with a generic reproducer for this? I think a metadump > > of the fs with the dirty log plus whatever device failure simulation > > hack you're using would suffice. > > The real issue is we don't know exactly what code is being tested > (it's 3.8 + random bug fix backports + custom code). Even if we have > a reproducer there's no guarantee it will reproduce on a current > kernel. IOWs, we are stumbling around in the dark bashing our heads > against everything in the room, and that just wastes everyone's > time. > > We need a reproducer that triggers on a current, unmodified > kernel release. You can use dm-faulty to error out all writes just > like you are doing with your custom code. See > xfstests::tests/generic/321 and common/dmflakey for to do this. > Ideally the reproducer is in a form that xfstests can use.... > > If you can't reproduce it on an upstream kernel, then git bisect is > your friend. It will find the commit that fixed the problem you are > seeing.... > Ugh, yeah. The fact that this was customized as such apparently went over my head. I agree completely. This needs to be genericized to a pristine, preferably current kernel. The experiment patch could be papering over something completely different. > > The ideal fix is not yet clear to me. > > We are not even that far along - the root cause of the bug is not at > all clear to me. :/ > Yeah.. the above was just the theory that motivated the experiment in the previously posted patch. It of course remains a theory until we can see the race in action. I was referring to the potential fix for the raciness of xfs_buf_iowait() with regard to bio errors and the wq iodone handling, while still asking for a reproducer to confirm the actual problem. FWIW, I'm not too high on changes in the buf management code, even a smallish behavior change, without a real trace of some sort that documents the problem and justifies the change. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From alex@zadarastorage.com Tue Aug 12 07:39:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A6F327F3F for ; Tue, 12 Aug 2014 07:39:10 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 476C28F8064 for ; Tue, 12 Aug 2014 05:39:06 -0700 (PDT) X-ASG-Debug-ID: 1407847143-04bdf06ef9cdb70001-NocioJ Received: from mail-wi0-f176.google.com (mail-wi0-f176.google.com [209.85.212.176]) by cuda.sgi.com with ESMTP id NGbryybMz9D3K9my (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 12 Aug 2014 05:39:04 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.176 Received: by mail-wi0-f176.google.com with SMTP id bs8so5781754wib.3 for ; Tue, 12 Aug 2014 05:39:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:importance; bh=CZchVlgxFUArt26yo+DGB9DiOoGImYWYwPHuPMJUkHk=; b=ImS9uaTdgMgNtFD7GllfsU1lE+yojvdDwo8zJ+hgBVD8ABmjmHnqNqbyPL/XQ9EkOA cnylj7aKZWFDeVtFqW89UA0ZmNaukXVPVO3HMXAdMJQRaiqPMTC8rOYtVpYF9mEXxXZ4 +DLZ77pYeKRpZjOucSZ/s8ZXgSY0CW0PFGt3Xf0wYLCmoaun4Xve+u9lnDo1nqfswa9W vVj5BVhlPS81/DBx1vvawGNPMqxZczEUl90rDbPGcflBPAzHLepOXlP06TlLo9J/ojy7 qcsIEao+5J00LOD92XsOfMeHJO6x3PzL9wcymCQmTBMgI28LgQ07t26UMMvU38wYiJgq lt4w== X-Gm-Message-State: ALoCoQnd+u34ljQbM1gcwidDAGXTwJ2QpPzvSB95kLcOlKfTb+eIucHwGz2WRTbvzIY2eKeOuCjR X-Received: by 10.180.90.11 with SMTP id bs11mr26907688wib.47.1407847142499; Tue, 12 Aug 2014 05:39:02 -0700 (PDT) Received: from alyakaslap (bzq-169-168-31-234.red.bezeqint.net. [31.168.169.234]) by mx.google.com with ESMTPSA id dc3sm55840161wib.9.2014.08.12.05.39.00 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 12 Aug 2014 05:39:01 -0700 (PDT) Message-ID: From: "Alex Lyakas" To: "Brian Foster" , "Dave Chinner" Cc: References: <20140119231745.GF18112@dastard> <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> In-Reply-To: <20140812120341.GA46654@bfoster.bfoster> Subject: Re: use-after-free on log replay failure Date: Tue, 12 Aug 2014 15:39:02 +0300 X-ASG-Orig-Subj: Re: use-after-free on log replay failure MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0039_01CFB643.8B14BD50" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-wi0-f176.google.com[209.85.212.176] X-Barracuda-Start-Time: 1407847143 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8360 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header This is a multi-part message in MIME format. ------=_NextPart_000_0039_01CFB643.8B14BD50 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit Hello Dave, Brian, I will describe a generic reproduction that you ask for. It was performed on pristine XFS code from 3.8.13, taken from here: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git top commit being: commit dbf932a9b316d5b29b3e220e5a30e7a165ad2992 Author: Greg Kroah-Hartman Date: Sat May 11 13:57:46 2013 -0700 Linux 3.8.13 I made a single (I swear!) code change in XFS: diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 96fcbb8..d756bf6 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3736,6 +3736,9 @@ xlog_recover( if ((error = xlog_find_tail(log, &head_blk, &tail_blk))) return error; + xfs_notice(log->l_mp, "Sleep 10s before xlog_do_recover"); + msleep(10000); + if (tail_blk != head_blk) { /* There used to be a comment here: * Fresh XFS was formatted on a 20 GB block device within a VM, using: mkfs.xfs -f -K /dev/vde -p /etc/zadara/xfs.protofile and: root@vc-00-00-1383-dev:~# cat /etc/zadara/xfs.protofile dummy : bootfilename, not used, backward compatibility 0 0 : numbers of blocks and inodes, not used, backward compatibility d--777 0 0 : set 777 perms for the root dir $ $ I mounted XFS with the following options: rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 I started a couple of processes writing files sequentially onto this mount point, and after few seconds crashed the VM. When the VM came up, I took the metadump file and placed it in: https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing Then I set up the following Device Mapper target onto /dev/vde: dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" I am attaching the code (and Makefile) of dm-linear-custom target. It is exact copy of dm-linear, except that it has a module parameter. With the parameter set to 0, this is an identity mapping onto /dev/vde. If the parameter is set to non-0, all WRITE bios are failed with ENOSPC. There is a workqueue to fail them in a different context (not sure if really needed, but that's what our "real" custom block device does). Now I did: mount -o noatime,sync /dev/mapper/VDE /mnt/xfs The log recovery flow went into the sleep that I added, and then I did: echo 1 > /sys/module/dm_linear_custom/parameters/fail_writes Problem reproduced: Aug 12 14:23:04 vc-00-00-1383-dev kernel: [ 175.000657] XFS (dm-0): Mounting Filesystem Aug 12 14:23:04 vc-00-00-1383-dev kernel: [ 175.026991] XFS (dm-0): Sleep 10s before xlog_do_recover Aug 12 14:23:14 vc-00-00-1383-dev kernel: [ 185.028113] XFS (dm-0): Starting recovery (logdev: internal) Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556622] XFS (dm-0): metadata I/O error: block 0x2 ("xlog_recover_iodone") error 28 numblks 1 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556675] XFS (dm-0): metadata I/O error: block 0x40 ("xlog_recover_iodone") error 28 numblks 16 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556680] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556683] XFS (dm-0): I/O Error Detected. Shutting down filesystem Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556684] XFS (dm-0): Please umount the filesystem and rectify the problem(s) Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556766] XFS (dm-0): metadata I/O error: block 0xa00002 ("xlog_recover_iodone") error 5 numblks 1 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556769] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556771] XFS (dm-0): metadata I/O error: block 0xa00008 ("xlog_recover_iodone") error 5 numblks 8 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556774] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556776] XFS (dm-0): metadata I/O error: block 0xa00010 ("xlog_recover_iodone") error 5 numblks 8 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556779] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556781] XFS (dm-0): metadata I/O error: block 0xa00018 ("xlog_recover_iodone") error 5 numblks 8 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556783] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556785] XFS (dm-0): metadata I/O error: block 0xa00040 ("xlog_recover_iodone") error 5 numblks 16 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556788] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556790] XFS (dm-0): metadata I/O error: block 0xa00050 ("xlog_recover_iodone") error 5 numblks 16 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556793] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556880] XFS (dm-0): metadata I/O error: block 0xa00001 ("xlog_recover_iodone") error 28 numblks 1 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556884] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556977] XFS (dm-0): log mount/recovery failed: error 28 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.557215] XFS (dm-0): log mount failed Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.573194] XFS (): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.573214] XFS (): metadata I/O error: block 0x18 ("xlog_recover_iodone") error 28 numblks 8 Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.574685] XFS (): xfs_do_force_shutdown(0x1) called from line 377 of file /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa0349f68 As you see, after mount completes, IO callbacks are still arriving and printing junk (empty string in this case). Immediately after that kernel dies. Is this description generic enough? Thanks, Alex. -----Original Message----- From: Brian Foster Sent: 12 August, 2014 3:03 PM To: Dave Chinner Cc: Alex Lyakas ; xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure On Tue, Aug 12, 2014 at 07:52:07AM +1000, Dave Chinner wrote: > On Mon, Aug 11, 2014 at 09:20:57AM -0400, Brian Foster wrote: > > On Sun, Aug 10, 2014 at 03:20:50PM +0300, Alex Lyakas wrote: > > > On Wed, Aug 6, 2014 at 6:20 PM, Brian Foster > > > wrote: > > > > On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: > ..... > > > >> But I believe, my analysis shows that during the mount sequence XFS > > > >> does not > > > >> wait properly for all the bios to complete, before failing the > > > >> mount > > > >> sequence back to the caller. > > > >> > > > > > > > > As an experiment, what about the following? Compile tested only and > > > > not > > > > safe for general use. > ... > > > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > > > > index cd7b8ca..fbcf524 100644 > > > > --- a/fs/xfs/xfs_buf.c > > > > +++ b/fs/xfs/xfs_buf.c > > > > @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( > > > > * case nothing will ever complete. It returns the I/O error code, > > > > if any, or > > > > * 0 if there was no error. > > > > */ > > > > -int > > > > -xfs_buf_iowait( > > > > - xfs_buf_t *bp) > > > > +static int > > > > +__xfs_buf_iowait( > > > > + struct xfs_buf *bp, > > > > + bool skip_error) > > > > { > > > > trace_xfs_buf_iowait(bp, _RET_IP_); > > > > > > > > - if (!bp->b_error) > > > > + if (skip_error || !bp->b_error) > > > > wait_for_completion(&bp->b_iowait); > > > > > > > > trace_xfs_buf_iowait_done(bp, _RET_IP_); > > > > return bp->b_error; > > > > } > > > > > > > > +int > > > > +xfs_buf_iowait( > > > > + struct xfs_buf *bp) > > > > +{ > > > > + return __xfs_buf_iowait(bp, false); > > > > +} > > > > + > > > > xfs_caddr_t > > > > xfs_buf_offset( > > > > xfs_buf_t *bp, > > > > @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( > > > > bp = list_first_entry(&io_list, struct xfs_buf, > > > > b_list); > > > > > > > > list_del_init(&bp->b_list); > > > > - error2 = xfs_buf_iowait(bp); > > > > + error2 = __xfs_buf_iowait(bp, true); > > > > xfs_buf_relse(bp); > > > > if (!error) > > > > error = error2; > > Not waiting here on buffer error should not matter. Any buffer that > is under IO and requires completion should be referenced, and that > means it should be caught and waited on by xfs_wait_buftarg() in the > mount failure path after log recovery fails. > I think that assumes the I/O is successful. Looking through xlog_recover_buffer_pass2() as an example, we read the buffer which should return with b_hold == 1. The delwri queue increments the hold and we xfs_buf_relse() in the return path (i.e., buffer is now held by the delwri queue awaiting submission). Sometime later we delwri_submit()... xfs_buf_iorequest() does an xfs_buf_hold() and xfs_buf_rele() within that single function. The delwri_submit() releases its hold after xfs_buf_iowait(), which I guess at that point bp should go onto the lru (b_hold back to 1 in xfs_buf_rele(). Indeed, the caller has lost scope of the buffer at this point. So unless I miss something or got the lifecycle wrong here, which is easily possible ;), this all hinges on xfs_buf_iowait(). That's where the last hold forcing the buffer to stay around goes away. xfs_buftarg_wait_rele() will dispose the buffer if b_hold == 1. If xfs_buf_iowait() is racy in the event of I/O errors via the bio callback, I think this path is susceptible just the same. > > > > --- > > > I think that this patch fixes the problem. I tried reproducing it like > > > 30 times, and it doesn't happen with this patch. Dropping this patch > > > reproduces the problem within 1 or 2 tries. Thanks! > > > What are next steps? How to make it "safe for general use"? > > > > > > > Ok, thanks for testing. I think that implicates the caller bypassing the > > expected blocking with the right sequence of log recovery I/Os and > > device failure. TBH, I'd still like to see the specifics, if possible. > > Could you come up with a generic reproducer for this? I think a metadump > > of the fs with the dirty log plus whatever device failure simulation > > hack you're using would suffice. > > The real issue is we don't know exactly what code is being tested > (it's 3.8 + random bug fix backports + custom code). Even if we have > a reproducer there's no guarantee it will reproduce on a current > kernel. IOWs, we are stumbling around in the dark bashing our heads > against everything in the room, and that just wastes everyone's > time. > > We need a reproducer that triggers on a current, unmodified > kernel release. You can use dm-faulty to error out all writes just > like you are doing with your custom code. See > xfstests::tests/generic/321 and common/dmflakey for to do this. > Ideally the reproducer is in a form that xfstests can use.... > > If you can't reproduce it on an upstream kernel, then git bisect is > your friend. It will find the commit that fixed the problem you are > seeing.... > Ugh, yeah. The fact that this was customized as such apparently went over my head. I agree completely. This needs to be genericized to a pristine, preferably current kernel. The experiment patch could be papering over something completely different. > > The ideal fix is not yet clear to me. > > We are not even that far along - the root cause of the bug is not at > all clear to me. :/ > Yeah.. the above was just the theory that motivated the experiment in the previously posted patch. It of course remains a theory until we can see the race in action. I was referring to the potential fix for the raciness of xfs_buf_iowait() with regard to bio errors and the wq iodone handling, while still asking for a reproducer to confirm the actual problem. FWIW, I'm not too high on changes in the buf management code, even a smallish behavior change, without a real trace of some sort that documents the problem and justifies the change. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com ------=_NextPart_000_0039_01CFB643.8B14BD50 Content-Type: application/octet-stream; name="dm-linear-custom.c" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="dm-linear-custom.c" /*=0A= * Copyright (C) 2001-2003 Sistina Software (UK) Limited.=0A= *=0A= * This file is released under the GPL.=0A= */=0A= =0A= #include =0A= #include =0A= #include =0A= #include =0A= #include =0A= #include =0A= =0A= #define DM_MSG_PREFIX "linear-custom"=0A= =0A= /*=0A= * Linear: maps a linear range of a device.=0A= */=0A= struct linear_c {=0A= struct dm_dev *dev;=0A= sector_t start;=0A= };=0A= =0A= unsigned int fail_writes =3D 0;=0A= module_param_named(fail_writes, fail_writes, uint, S_IWUSR|S_IRUSR | = S_IRGRP | S_IROTH);=0A= MODULE_PARM_DESC(fail_writes, "When set to non-0, all writes will be = failed with ENOSPC");=0A= =0A= static struct workqueue_struct *fail_writes_wq;=0A= =0A= struct fail_writes_work {=0A= struct work_struct work;=0A= struct bio *bio;=0A= };=0A= =0A= /*=0A= * Construct a linear mapping: =0A= */=0A= static int linear_ctr(struct dm_target *ti, unsigned int argc, char = **argv)=0A= {=0A= struct linear_c *lc;=0A= unsigned long long tmp;=0A= char dummy;=0A= =0A= if (argc !=3D 2) {=0A= ti->error =3D "Invalid argument count";=0A= return -EINVAL;=0A= }=0A= =0A= lc =3D kmalloc(sizeof(*lc), GFP_KERNEL);=0A= if (lc =3D=3D NULL) {=0A= ti->error =3D "dm-linear: Cannot allocate linear context";=0A= return -ENOMEM;=0A= }=0A= =0A= if (sscanf(argv[1], "%llu%c", &tmp, &dummy) !=3D 1) {=0A= ti->error =3D "dm-linear: Invalid device sector";=0A= goto bad;=0A= }=0A= lc->start =3D tmp;=0A= =0A= if (dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &lc->dev)) = {=0A= ti->error =3D "dm-linear: Device lookup failed";=0A= goto bad;=0A= }=0A= =0A= ti->num_flush_requests =3D 1;=0A= ti->num_discard_requests =3D 1;=0A= ti->num_write_same_requests =3D 1;=0A= ti->private =3D lc;=0A= return 0;=0A= =0A= bad:=0A= kfree(lc);=0A= return -EINVAL;=0A= }=0A= =0A= static void linear_dtr(struct dm_target *ti)=0A= {=0A= struct linear_c *lc =3D (struct linear_c *) ti->private;=0A= =0A= dm_put_device(ti, lc->dev);=0A= kfree(lc);=0A= }=0A= =0A= static sector_t linear_map_sector(struct dm_target *ti, sector_t = bi_sector)=0A= {=0A= struct linear_c *lc =3D ti->private;=0A= =0A= return lc->start + dm_target_offset(ti, bi_sector);=0A= }=0A= =0A= static void linear_map_bio(struct dm_target *ti, struct bio *bio)=0A= {=0A= struct linear_c *lc =3D ti->private;=0A= =0A= bio->bi_bdev =3D lc->dev->bdev;=0A= if (bio_sectors(bio))=0A= bio->bi_sector =3D linear_map_sector(ti, bio->bi_sector);=0A= }=0A= =0A= void linear_fail_write(struct work_struct *work)=0A= {=0A= struct fail_writes_work *w =3D container_of(work, struct = fail_writes_work, work);=0A= =0A= bio_endio(w->bio, -ENOSPC);=0A= kfree(w);=0A= }=0A= =0A= static int linear_map(struct dm_target *ti, struct bio *bio)=0A= {=0A= if (bio_rw(bio)=3D=3D WRITE && fail_writes) {=0A= struct fail_writes_work *w =3D kmalloc(sizeof(struct = fail_writes_work), GFP_NOIO);=0A= if (w) {=0A= bool queued =3D false;=0A= =0A= INIT_WORK(&w->work, linear_fail_write);=0A= w->bio =3D bio;=0A= queued =3D queue_work(fail_writes_wq, &w->work);=0A= if (queued)=0A= return DM_MAPIO_SUBMITTED;=0A= =0A= kfree(w);=0A= }=0A= }=0A= =0A= linear_map_bio(ti, bio);=0A= =0A= return DM_MAPIO_REMAPPED;=0A= }=0A= =0A= static void linear_status(struct dm_target *ti, status_type_t type,=0A= unsigned status_flags, char *result, unsigned maxlen)=0A= {=0A= struct linear_c *lc =3D (struct linear_c *) ti->private;=0A= =0A= switch (type) {=0A= case STATUSTYPE_INFO:=0A= result[0] =3D '\0';=0A= break;=0A= =0A= case STATUSTYPE_TABLE:=0A= snprintf(result, maxlen, "%s %llu", lc->dev->name,=0A= (unsigned long long)lc->start);=0A= break;=0A= }=0A= }=0A= =0A= static int linear_ioctl(struct dm_target *ti, unsigned int cmd,=0A= unsigned long arg)=0A= {=0A= struct linear_c *lc =3D (struct linear_c *) ti->private;=0A= struct dm_dev *dev =3D lc->dev;=0A= int r =3D 0;=0A= =0A= /*=0A= * Only pass ioctls through if the device sizes match exactly.=0A= */=0A= if (lc->start ||=0A= ti->len !=3D i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT)=0A= r =3D scsi_verify_blk_ioctl(NULL, cmd);=0A= =0A= return r ? : __blkdev_driver_ioctl(dev->bdev, dev->mode, cmd, arg);=0A= }=0A= =0A= static int linear_merge(struct dm_target *ti, struct bvec_merge_data = *bvm,=0A= struct bio_vec *biovec, int max_size)=0A= {=0A= struct linear_c *lc =3D ti->private;=0A= struct request_queue *q =3D bdev_get_queue(lc->dev->bdev);=0A= =0A= if (!q->merge_bvec_fn)=0A= return max_size;=0A= =0A= bvm->bi_bdev =3D lc->dev->bdev;=0A= bvm->bi_sector =3D linear_map_sector(ti, bvm->bi_sector);=0A= =0A= return min(max_size, q->merge_bvec_fn(q, bvm, biovec));=0A= }=0A= =0A= static int linear_iterate_devices(struct dm_target *ti,=0A= iterate_devices_callout_fn fn, void *data)=0A= {=0A= struct linear_c *lc =3D ti->private;=0A= =0A= return fn(ti, lc->dev, lc->start, ti->len, data);=0A= }=0A= =0A= static struct target_type linearc_target =3D {=0A= .name =3D "linear-custom",=0A= .version =3D {1, 2, 1},=0A= .module =3D THIS_MODULE,=0A= .ctr =3D linear_ctr,=0A= .dtr =3D linear_dtr,=0A= .map =3D linear_map,=0A= .status =3D linear_status,=0A= .ioctl =3D linear_ioctl,=0A= .merge =3D linear_merge,=0A= .iterate_devices =3D linear_iterate_devices,=0A= };=0A= =0A= int dm_linear_custom_init(void)=0A= {=0A= int r =3D 0;=0A= =0A= DMINFO("Going to register target: %s", linearc_target.name);=0A= r =3D dm_register_target(&linearc_target);=0A= if (r < 0) {=0A= DMERR("register failed %d", r);=0A= goto out;=0A= }=0A= =0A= fail_writes_wq =3D alloc_workqueue("dm_linear_custom_fail_writes_WQ",=0A= WQ_NON_REENTRANT | WQ_UNBOUND | WQ_MEM_RECLAIM, =0A= 0/*max_active*/);=0A= if (fail_writes_wq =3D=3D NULL) {=0A= r =3D -ENOMEM;=0A= goto out_unreg_target;=0A= }=0A= =0A= return 0;=0A= =0A= out_unreg_target:=0A= dm_unregister_target(&linearc_target);=0A= out:=0A= return r;=0A= }=0A= =0A= void dm_linear_custom_exit(void)=0A= {=0A= if (fail_writes_wq) {=0A= /* actually destroy_workqueue() also does drain_workqueue */=0A= flush_workqueue(fail_writes_wq);=0A= destroy_workqueue(fail_writes_wq);=0A= fail_writes_wq =3D NULL;=0A= }=0A= =0A= dm_unregister_target(&linearc_target);=0A= }=0A= =0A= module_init(dm_linear_custom_init);=0A= module_exit(dm_linear_custom_exit);=0A= =0A= MODULE_AUTHOR("Zadara Storage ");=0A= MODULE_DESCRIPTION("A modified dm-linear for BrianF");=0A= MODULE_LICENSE("GPL");=0A= =0A= ------=_NextPart_000_0039_01CFB643.8B14BD50 Content-Type: application/octet-stream; name="Makefile" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="Makefile" obj-m +=3D dm-linear-custom.o=0A= =0A= ccflags-y +=3D -Wall # Enable most warning messages=0A= ccflags-y +=3D -Werror # Error out the compiler on warnings=0A= =0A= KVERSION =3D $(shell uname -r)=0A= DM_LC_DIR=3D$(shell pwd)=0A= DM_LC_KO=3Ddm-linear-custom.ko=0A= =0A= default:=0A= $(MAKE) -C /lib/modules/$(KVERSION)/build M=3D$(DM_LC_DIR) = EXTRA_CFLAGS=3D-g modules=0A= =0A= clean:=0A= $(MAKE) -C /lib/modules/$(KVERSION)/build M=3D$(DM_LC_DIR) clean=0A= =0A= =0A= ------=_NextPart_000_0039_01CFB643.8B14BD50-- From david@fromorbit.com Tue Aug 12 07:53:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E2C9E7F3F for ; Tue, 12 Aug 2014 07:53:34 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BEC4F304048 for ; Tue, 12 Aug 2014 05:53:31 -0700 (PDT) X-ASG-Debug-ID: 1407848008-04cbb0508bce820001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id qg1smTeJVNOOEpoC for ; Tue, 12 Aug 2014 05:53:28 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvwGAAkN6lN5LDJ8/2dsb2JhbABagw1SV4IprC4GBZ5Rh1CBFRd3hGAjGCQ0BSUDNIhBxR8YhWSJA02EUwWGEI8zhnWBWJMng24rL4EH Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 12 Aug 2014 22:23:26 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHBZh-0001DT-BG; Tue, 12 Aug 2014 22:53:13 +1000 Date: Tue, 12 Aug 2014 22:53:13 +1000 From: Dave Chinner To: torvalds@linux-foundation.org Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: [GIT PULL] xfs: updates for 3.17-rc1 Message-ID: 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charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Linus, Can you please pull the XFS changes from the tree below? The diffstat is kind of noisy because of the restructuring of the code to make kernel/userspace code sharing simpler, along with an XFS wide change to use the standard negative error return convention (at last!). The rest of the changes are noted in the tag below. FYI, this will be the last pull request I will send you from a tree on oss.sgi.com. I'm moving everything XFS related over to kernel.org so future pull requests should come from there. -Dave. The following changes since commit a497c3ba1d97fc69c1e78e7b96435ba8c2cb42ee: Linux 3.16-rc2 (2014-06-21 19:02:54 -1000) are available in the git repository at: git://oss.sgi.com/xfs/xfs.git tags/xfs-for-linus-3.17-rc1 for you to fetch changes up to 645f9857213476407d8ed1b59619fdff7128d3e6: Merge branch 'xfs-misc-fixes-3.17-2' into for-next (2014-08-04 13:55:27 += 1000) ---------------------------------------------------------------- xfs: update for 3.17-rc1 This update contains: o conversion of the XFS core to pass negative error numbers o restructing of core XFS code that is shared with userspace to fs/xfs/libx= fs o introduction of sysfs interface for XFS o bulkstat refactoring o demand driven speculative preallocation removal o XFS now always requires 64 bit sectors to be configured o metadata verifier changes to ensure CRCs are calculated during log recove= ry o various minor code cleanups o miscellaneous bug fixes ---------------------------------------------------------------- Brian Foster (11): xfs: fix a couple error sequence jumps in xfs_mountfs() xfs: add a sysfs kset xfs: add xfs_mount sysfs kobject xfs: add xlog sysfs kobject and attribute handlers xfs: add log attributes for log lsn and grant head data xfs: document log sysfs attributes in testing ABI xfs: add scan owner field to xfs_eofblocks xfs: support a union-based filter for eofblocks scans xfs: run an eofblocks scan on ENOSPC/EDQUOT xfs: squash prealloc while over quota free space as well xfs: fix rounding error of fiemap length parameter Christoph Hellwig (2): xfs: remove xfs_bulkstat_single xfs: require 64-bit sector_t Dave Chinner (22): xfs: create libxfs infrastructure libxfs: move header files libxfs: move source files xfs: global error sign conversion Revert "xfs: block allocation work needs to be kswapd aware" xfs: refine the allocation stack switch xfs: null unused quota inodes when quota is on Merge branch 'xfs-libxfs-restructure' into for-next xfs: catch buffers written without verifiers attached xfs: ensure verifiers are attached to recovered buffers xfs: quotacheck leaves dquot buffers without verifiers xfs: dquot recovery needs verifiers xfs: kill VN_DIRTY() xfs: kill VN_CACHED xfs: kill VN_MAPPED xfs: kill xfs_vnode.h xfs: fix swapext ilock deadlock xfs: flush both inodes in xfs_swap_extents Merge branch 'xfs-quota-eofblocks-scan' into for-next Merge branch 'xfs-misc-fixes-3.17-1' into for-next Merge branch 'xfs-bulkstat-refactor' into for-next Merge branch 'xfs-misc-fixes-3.17-2' into for-next Eric Sandeen (5): xfs: return is not a function xfs: Nuke XFS_ERROR macro xfs: allow inode allocations in post-growfs disk space xfs: tidy up xfs_set_inode32 xfs: avoid false quotacheck after unclean shutdown Jie Liu (11): xfs: remove redundant stat assignment in xfs_bulkstat_one_int xfs: consolidate xfs_inumbers xfs: fix error handling at xfs_inumbers xfs: remove redundant user buffer count checks at xfs_bulkstat xfs: fix error handling at xfs_bulkstat xfs: introduce xfs_bulkstat_ichunk_ra xfs: introduce xfs_bulkstat_grab_ichunk xfs: mark xfs_qm_quotacheck as static xfs: remove XFS_IS_OQUOTA_ON macros xfs: fix uflags detection at xfs_fs_rm_xquota xfs: introduce xfs_bulkstat_ag_ichunk Mark Tinguely (1): xfs: fix cil push sequence after log recovery kbuild test robot (1): xfs: fix coccinelle warnings Documentation/ABI/testing/sysfs-fs-xfs | 39 ++ fs/xfs/Kconfig | 1 + fs/xfs/Makefile | 71 ++-- fs/xfs/{ =3D> libxfs}/xfs_ag.h | 0 fs/xfs/{ =3D> libxfs}/xfs_alloc.c | 20 +- fs/xfs/{ =3D> libxfs}/xfs_alloc.h | 0 fs/xfs/{ =3D> libxfs}/xfs_alloc_btree.c | 6 +- fs/xfs/{ =3D> libxfs}/xfs_alloc_btree.h | 0 fs/xfs/{ =3D> libxfs}/xfs_attr.c | 92 ++--- fs/xfs/{ =3D> libxfs}/xfs_attr_leaf.c | 78 ++-- fs/xfs/{ =3D> libxfs}/xfs_attr_leaf.h | 0 fs/xfs/{ =3D> libxfs}/xfs_attr_remote.c | 22 +- fs/xfs/{ =3D> libxfs}/xfs_attr_remote.h | 0 fs/xfs/{ =3D> libxfs}/xfs_attr_sf.h | 0 fs/xfs/{ =3D> libxfs}/xfs_bit.h | 0 fs/xfs/{ =3D> libxfs}/xfs_bmap.c | 67 ++-- fs/xfs/{ =3D> libxfs}/xfs_bmap.h | 4 +- fs/xfs/{ =3D> libxfs}/xfs_bmap_btree.c | 99 +---- fs/xfs/{ =3D> libxfs}/xfs_bmap_btree.h | 0 fs/xfs/{ =3D> libxfs}/xfs_btree.c | 128 +++++-- fs/xfs/{ =3D> libxfs}/xfs_btree.h | 2 +- fs/xfs/{ =3D> libxfs}/xfs_cksum.h | 0 fs/xfs/{ =3D> libxfs}/xfs_da_btree.c | 112 +++--- fs/xfs/{ =3D> libxfs}/xfs_da_btree.h | 0 fs/xfs/{ =3D> libxfs}/xfs_da_format.c | 0 fs/xfs/{ =3D> libxfs}/xfs_da_format.h | 0 fs/xfs/{ =3D> libxfs}/xfs_dinode.h | 0 fs/xfs/{ =3D> libxfs}/xfs_dir2.c | 24 +- fs/xfs/{ =3D> libxfs}/xfs_dir2.h | 0 fs/xfs/{ =3D> libxfs}/xfs_dir2_block.c | 18 +- fs/xfs/{ =3D> libxfs}/xfs_dir2_data.c | 10 +- fs/xfs/{ =3D> libxfs}/xfs_dir2_leaf.c | 24 +- fs/xfs/{ =3D> libxfs}/xfs_dir2_node.c | 40 +-- fs/xfs/{ =3D> libxfs}/xfs_dir2_priv.h | 0 fs/xfs/{ =3D> libxfs}/xfs_dir2_sf.c | 75 ++-- fs/xfs/{ =3D> libxfs}/xfs_dquot_buf.c | 6 +- fs/xfs/{ =3D> libxfs}/xfs_format.h | 14 +- fs/xfs/{ =3D> libxfs}/xfs_ialloc.c | 34 +- fs/xfs/{ =3D> libxfs}/xfs_ialloc.h | 0 fs/xfs/{ =3D> libxfs}/xfs_ialloc_btree.c | 6 +- fs/xfs/{ =3D> libxfs}/xfs_ialloc_btree.h | 0 fs/xfs/{ =3D> libxfs}/xfs_inode_buf.c | 10 +- fs/xfs/{ =3D> libxfs}/xfs_inode_buf.h | 0 fs/xfs/{ =3D> libxfs}/xfs_inode_fork.c | 36 +- fs/xfs/{ =3D> libxfs}/xfs_inode_fork.h | 0 fs/xfs/{ =3D> libxfs}/xfs_inum.h | 4 - fs/xfs/{ =3D> libxfs}/xfs_log_format.h | 4 +- fs/xfs/{ =3D> libxfs}/xfs_log_recover.h | 0 fs/xfs/{ =3D> libxfs}/xfs_log_rlimit.c | 0 fs/xfs/{ =3D> libxfs}/xfs_quota_defs.h | 2 - fs/xfs/{ =3D> libxfs}/xfs_rtbitmap.c | 0 fs/xfs/{ =3D> libxfs}/xfs_sb.c | 81 +++-- fs/xfs/{ =3D> libxfs}/xfs_sb.h | 8 +- fs/xfs/{ =3D> libxfs}/xfs_shared.h | 0 fs/xfs/{ =3D> libxfs}/xfs_symlink_remote.c | 6 +- fs/xfs/{ =3D> libxfs}/xfs_trans_resv.c | 0 fs/xfs/{ =3D> libxfs}/xfs_trans_resv.h | 0 fs/xfs/{ =3D> libxfs}/xfs_trans_space.h | 0 fs/xfs/xfs_acl.c | 8 +- fs/xfs/xfs_aops.c | 18 +- fs/xfs/xfs_attr_inactive.c | 22 +- fs/xfs/xfs_attr_list.c | 38 +- fs/xfs/xfs_bmap_util.c | 227 +++++------- fs/xfs/xfs_bmap_util.h | 4 - fs/xfs/xfs_buf.c | 40 ++- fs/xfs/xfs_buf.h | 2 +- fs/xfs/xfs_buf_item.c | 4 +- fs/xfs/xfs_dir2_readdir.c | 4 +- fs/xfs/xfs_discard.c | 18 +- fs/xfs/xfs_dquot.c | 41 +-- fs/xfs/xfs_dquot.h | 15 + fs/xfs/xfs_error.c | 25 +- fs/xfs/xfs_error.h | 13 +- fs/xfs/xfs_export.c | 10 +- fs/xfs/xfs_extfree_item.c | 2 +- fs/xfs/xfs_file.c | 75 ++-- fs/xfs/xfs_filestream.c | 4 +- fs/xfs/xfs_fs.h | 7 +- fs/xfs/xfs_fsops.c | 42 +-- fs/xfs/xfs_icache.c | 148 ++++++-- fs/xfs/xfs_icache.h | 13 +- fs/xfs/xfs_inode.c | 68 ++-- fs/xfs/xfs_inode.h | 10 + fs/xfs/xfs_inode_item.c | 2 +- fs/xfs/xfs_ioctl.c | 266 +++++++------- fs/xfs/xfs_ioctl32.c | 111 +++--- fs/xfs/xfs_iomap.c | 57 +-- fs/xfs/xfs_iops.c | 72 ++-- fs/xfs/xfs_itable.c | 579 ++++++++++++++------------= ---- fs/xfs/xfs_itable.h | 23 +- fs/xfs/xfs_linux.h | 27 +- fs/xfs/xfs_log.c | 69 ++-- fs/xfs/xfs_log_cil.c | 8 +- fs/xfs/xfs_log_priv.h | 2 + fs/xfs/xfs_log_recover.c | 284 ++++++++------- fs/xfs/xfs_mount.c | 97 ++--- fs/xfs/xfs_mount.h | 1 + fs/xfs/xfs_mru_cache.c | 14 +- fs/xfs/xfs_qm.c | 229 ++++++------ fs/xfs/xfs_qm.h | 1 - fs/xfs/xfs_qm_bhv.c | 2 +- fs/xfs/xfs_qm_syscalls.c | 46 +-- fs/xfs/xfs_quotaops.c | 20 +- fs/xfs/xfs_rtalloc.c | 24 +- fs/xfs/xfs_rtalloc.h | 2 +- fs/xfs/xfs_super.c | 132 +++---- fs/xfs/xfs_super.h | 15 +- fs/xfs/xfs_symlink.c | 30 +- fs/xfs/xfs_sysfs.c | 165 +++++++++ fs/xfs/xfs_sysfs.h | 59 +++ fs/xfs/xfs_trans.c | 10 +- fs/xfs/xfs_trans_ail.c | 4 +- fs/xfs/xfs_trans_buf.c | 37 +- fs/xfs/xfs_trans_dquot.c | 4 +- fs/xfs/xfs_types.h | 29 +- fs/xfs/xfs_vnode.h | 46 --- fs/xfs/xfs_xattr.c | 6 +- 117 files changed, 2358 insertions(+), 2116 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-fs-xfs rename fs/xfs/{ =3D> libxfs}/xfs_ag.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_alloc.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_alloc.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_alloc_btree.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_alloc_btree.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_attr.c (97%) rename fs/xfs/{ =3D> libxfs}/xfs_attr_leaf.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_attr_leaf.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_attr_remote.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_attr_remote.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_attr_sf.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_bit.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_bmap.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_bmap.h (98%) rename fs/xfs/{ =3D> libxfs}/xfs_bmap_btree.c (88%) rename fs/xfs/{ =3D> libxfs}/xfs_bmap_btree.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_btree.c (97%) rename fs/xfs/{ =3D> libxfs}/xfs_btree.h (99%) rename fs/xfs/{ =3D> libxfs}/xfs_cksum.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_da_btree.c (97%) rename fs/xfs/{ =3D> libxfs}/xfs_da_btree.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_da_format.c (100%) rename fs/xfs/{ =3D> libxfs}/xfs_da_format.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_dinode.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2_block.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2_data.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2_leaf.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2_node.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2_priv.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_dir2_sf.c (97%) rename fs/xfs/{ =3D> libxfs}/xfs_dquot_buf.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_format.h (97%) rename fs/xfs/{ =3D> libxfs}/xfs_ialloc.c (99%) rename fs/xfs/{ =3D> libxfs}/xfs_ialloc.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_ialloc_btree.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_ialloc_btree.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_inode_buf.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_inode_buf.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_inode_fork.c (98%) rename fs/xfs/{ =3D> libxfs}/xfs_inode_fork.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_inum.h (96%) rename fs/xfs/{ =3D> libxfs}/xfs_log_format.h (99%) rename fs/xfs/{ =3D> libxfs}/xfs_log_recover.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_log_rlimit.c (100%) rename fs/xfs/{ =3D> libxfs}/xfs_quota_defs.h (98%) rename fs/xfs/{ =3D> libxfs}/xfs_rtbitmap.c (100%) rename fs/xfs/{ =3D> libxfs}/xfs_sb.c (93%) rename fs/xfs/{ =3D> libxfs}/xfs_sb.h (98%) rename fs/xfs/{ =3D> libxfs}/xfs_shared.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_symlink_remote.c (97%) rename fs/xfs/{ =3D> libxfs}/xfs_trans_resv.c (100%) rename fs/xfs/{ =3D> libxfs}/xfs_trans_resv.h (100%) rename fs/xfs/{ =3D> libxfs}/xfs_trans_space.h (100%) create mode 100644 fs/xfs/xfs_sysfs.c create mode 100644 fs/xfs/xfs_sysfs.h delete mode 100644 fs/xfs/xfs_vnode.h --=20 Dave Chinner david@fromorbit.com --tMbDGjvJuJijemkf Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJT6g44AAoJEK3oKUf0dfodS40P/irj9NHfLmSTXmOXKAp+rhUs fDN9bqI/EjQaeqTf2pRP1jFsCO14Pr9j/QVOF/bBminJ6NKqnGuzfYQzRWsQ+IDH Kx2RFnkOMnj/QEOPGO9fsfzCNqW/rIt2HHFqR+QGfB0dJCcMiTlLGPjMGyNYo7GJ jkCB3x6hSZY0S33mhyQTKlsGMY+0q77KbVeZQZK90nhIZER7RSALB2N+i9SSokxV mty9TkLCOFOY9wv38GWokx7N+MZk5IUypPj08z8xD+HMBJ8mrmYpV40ezuYOHVhq IwAjA7q147BIi9v4BtdObx77//sLQ05uIUriBcZRGTZ7ZJpIEw1aRE7uRGTJvhLo JATD9y/SAWeinNVRtMzSEGs+KuCHYMDGcqHsFdTRNV++DmnuMJgt+GNrgaLEOLoF mHokbHGL0saR9uo0Kc4Ztv4P0pSDiywi9M5gYBeKCtWuJluym58XN4neWe02gk5N ZDNKyIykbn57afT3YoXqvh7XXyeJuYjNjJc2bECK4dlHHlvOGQJ5iofEJ5WyiOBt jRCHE1QS7c8Xsq4fe/ObvPCBQHfWEk2wdFfa6IYTPUzbn+2KfLKQgl9Ww3AmUCu0 MDei1prTapMu3j6/Y63fol9yknmOe/y0KOpnORqoeCN3vDWCv0HAnXDzVPNMRSFp YiVOBNxP/zw+YSkKpvnI =oLm5 -----END PGP SIGNATURE----- --tMbDGjvJuJijemkf-- From sfr@canb.auug.org.au Tue Aug 12 08:56:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E7B5C7F3F for ; Tue, 12 Aug 2014 08:56:28 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B2CB78F8037 for ; Tue, 12 Aug 2014 06:56:25 -0700 (PDT) X-ASG-Debug-ID: 1407851781-04cb6c4c94b3cb0001-NocioJ Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by cuda.sgi.com with ESMTP id padfAzpmnJ68EVJZ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 12 Aug 2014 06:56:23 -0700 (PDT) X-Barracuda-Envelope-From: sfr@canb.auug.org.au X-Barracuda-Apparent-Source-IP: 103.22.144.67 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id 55CB1140087; Tue, 12 Aug 2014 23:56:20 +1000 (EST) Date: Tue, 12 Aug 2014 23:56:12 +1000 From: Stephen Rothwell To: Dave Chinner Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [GIT PULL] xfs: updates for 3.17-rc1 Message-ID: <20140812235612.684a9af7@canb.auug.org.au> X-ASG-Orig-Subj: Re: [GIT PULL] xfs: updates for 3.17-rc1 In-Reply-To: <20140812125313.GX20518@dastard> References: <20140812125313.GX20518@dastard> X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.24; i486-pc-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/FbP4CYOTAJSl_7QI41nE3ce"; protocol="application/pgp-signature" X-Barracuda-Connect: ozlabs.org[103.22.144.67] X-Barracuda-Start-Time: 1407851782 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8362 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --Sig_/FbP4CYOTAJSl_7QI41nE3ce Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Dave, On Tue, 12 Aug 2014 22:53:13 +1000 Dave Chinner wrote: > > FYI, this will be the last pull request I will send you from a tree > on oss.sgi.com. I'm moving everything XFS related over to kernel.org > so future pull requests should come from there. Please let me know when you have the new tree set up so I can change where I fetch from. --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au --Sig_/FbP4CYOTAJSl_7QI41nE3ce Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJT6h0DAAoJEMDTa8Ir7ZwVa0wP/j0ONjUshXWfwHbGiWLU/K45 8AqHE2OHvFL1GIcnOE+heXmYMn0HVzkfFPzp0HFR98JubgXI4kFPxTBjb7bSh1KQ t0NstYhroALRf4XLS82EuIgfauy0B7BxTfEkD1j9Ai9qQI2jQ0e4BkWX0MayVQwD CRnkmzjMFWGu/3ARGckAX7QPWeQ63vQAgdNNRh9ryBLQutHVeTBjr8ls+WcOZwCJ +hCI4lZE4sw04ThZWOHxs4p84+OFLJfYXxLiLMJoGfHlvVlNBDoBXDr7pGkayvUF ky5FIj1akiuOOXhuYfRSJk1iuOUtGAgn0nIqMqZvb/ixhWJEy2cXF7GP3pC9cb/9 qNeT0sxqGzR3mFfnPrRApFIjiU+yeFV50OXj3UMD6yChWDmGLgaIf0dIMt3uJfkR WvBF2gGs8DypYUxHZSdUAUfwy3HvgEYtGjJcOxgZKaxtAtvPTkUZ0CLiUvAW/jmU eHqlKURZOmuJyDdYpQNulvJZv0DhHBkF/Bw/8eLV/K81kPpiuq3lrScxsUKk72pv T9Rzgwent2s3P8jcYHIxTpiK0QxONYnEX+wTHFUffXXI5u+V53Mt8ckSsAbH46zx Trfpbppj5+/pUiE8p6zuRuLmoObEVbHlIV6OTkz8Ezb9Qe24EJS2osfYcVkkPIiq ogUHFE95BdGRNNo1XC6O =Rp08 -----END PGP SIGNATURE----- --Sig_/FbP4CYOTAJSl_7QI41nE3ce-- From tdm@sgi.com Tue Aug 12 09:47:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 91B2D7F3F for ; Tue, 12 Aug 2014 09:47:40 -0500 (CDT) Received: from estes.americas.sgi.com (estes.americas.sgi.com [128.162.236.10]) by relay2.corp.sgi.com (Postfix) with ESMTP id 372CA30404E; Tue, 12 Aug 2014 07:47:40 -0700 (PDT) Received: from [128.162.232.11] (porter.americas.sgi.com [128.162.232.11]) by estes.americas.sgi.com (Postfix) with ESMTP id DB4567001834; Tue, 12 Aug 2014 09:47:39 -0500 (CDT) Message-ID: <53EA290B.6000009@sgi.com> Date: Tue, 12 Aug 2014 09:47:39 -0500 From: Troy McCorkell User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.5) Gecko/20091204 Thunderbird/3.0 MIME-Version: 1.0 To: Dave Chinner Cc: xfs@oss.sgi.com, fstests@vger.kernel.org Subject: Re: [DISCUSS] Moving from oss.sgi.com to kernel.org References: <20140807000922.GA26465@dastard> In-Reply-To: <20140807000922.GA26465@dastard> Content-Type: multipart/alternative; boundary="------------000902030909030903060406" This is a multi-part message in MIME format. --------------000902030909030903060406 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 08/06/2014 07:09 PM, Dave Chinner wrote: > Hi folks, > > A few recent incidents, discoveries and comments have me concerned > about the viability of using oss.sgi.com to host XFS deveopment and > community support. > > We are very grateful for the time, effort and money that SGI has put > into providing oss.sgi.com for us over many, many years, but these > recent issues have brought the state of oss.sgi.com and hence it's > viability as a host for XFS development to my immediate attention. > > Ultimately, as the XFS maintainer, I'm responsible for the contents > of the pull requests sent to Linus and the code we distribute to > users, distros and developers. That means I need to be able to trust > that the hosting infrastructure is secure and well maintained. > > The short story is that I can't trust oss.sgi.com to be maintained > and secure anymore. The recent DOS issues with oss.sgi.com made it > clear that it is essentially unmaintained and the SGI admins don't > have time to address issues that arise. This little snippet of the > conversion about blocking the rogue spider causing the recent > ftp and gitweb DOS problems is instructive: > > [19/07/14 09:07] trev, it's you guys' box :) > [19/07/14 09:07] you get to make it work > [19/07/14 09:07] I am not eh administrator, and if I'm forced to do this sort of thing I'll just take the content elsewhere.... > [19/07/14 09:08] dchinner__, please do so. I don't have much time for oss anymore > > It should be no surprise that since this conversation I've been > looking at what is involved in moving everything XFS off oss.sgi.com > to kernel.org. Right now I have the main XFS repositories up to > date on kernel.org. For userspace I've simply pushed the current > trees and tags to the pre-existing repositories here: > > git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git > git://git.kernel.org/pub/scm/fs/xfs/xfsdump-dev.git > git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git > > These trees currently have the same content as the trees on > oss.sgi.com. I may rename these as a result of discussions here > (e.g. some people don't like the -dev suffix on the trees) so it's > best for people to continue to use the trees on oss.sgi.com until > this disucssion comes to a conclusion. > > My new kernel dev tree can be found here: > > git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git > > This is my immediate concern: this tree, regardless of anything > else, the tree I am going to be asking Linus to pull from - it is > now *my* master tree and the tree on oss.sgi.com will simply mirror > that tree. > > For the short term, I will set up a cron job to keep the oss trees > up to date with the trees on kernel.org. By "short-term" I mean till > the end of the year at most. This will allow people time to change > their workflows, update their repos, bookmarks, etc in their own > time so hopefully not take anyone by surprise when the trees on > oss.sgi.com stop updating. "short-term" is a rubbery concept - if > anyone things it should be longer or shorter or whether a completely > different approach is warranted, please speak up. > > Over the next few days I will move the remaining xfs trees to > kernel.org - the historical kernel archive and documentation trees - > and then I'll maintain them as the primary trees with the same > short term mirroring backup. > > In moving these trees, we will need to update some documentation > (e.g. the "where to get" documentation on the xfs.org wiki) and > links, as well as place a "readme" in the gitweb main page on > oss.sgi.com to indicate that the up-to-date XFS trees are now on > kernel.org and documenting the drop-dead date to when the trees on > oss will no longer be kept up to date. > > The only remaining issue is what to do about tarball releases for > xfsprogs/xfsdump/fstests. We currently have a bunch of historic > releases in the ftp release area on oss.sgi.com. I will organise a > release directory on kernel.org for future releases (location yet to > be confirmed), but I'm not sure what to do with the older releases. > I'm open to suggestions here, but the limit of what I will try to > move to kernel.org is signed tarballs that I have verified. > > For xfstests, I think this would be a good time to rename the > project officially as well (i.e. to "fstests"). I'll need to talk to > the kernel.org admins on where to locate it (pub/scm/fs/fstests is > the best candidate, I think), but in the mean time I'll just mirror > to oss.sgi.com as per the above so nobody needs to change anything > until we sort out the final location/name of the tree. If anyone has > any other ideas on this, please let me know, otherwise I'll just > proceed with this plan. > > In conjunction with this source tree move, I'd also like to start the > move the mailing list. We have ongoing spam, performance and user > access issues with oss.sgi.com, so IMO if we are moving source trees > off this host we should also move the mailing list to kernel.org > infrastructure. > > To that end, there is a linux-xfs@vger.kernel.org > list already - it was created at the same time that the above > kernel.org repositories were created, but we've never used it. It > is archived here: > > http://www.spinics.net/lists/linux-xfs/ > > Moving the mailing list is going to be something that affects more > than just the developers - we've got lots of documentation that > points at this list and there are lots of users that are subscribed, > read it though nntp gateways, have aliases for it, etc so we need > a good transition plan here. > > I'm not sure what the best approach - perhaps just > forwarding all email from xfs@oss.sgi.com to > linux-xfs@vger.kernel.org will solve most transitional problems > for users that aren't aware of the change or are following old > documentation or "please report bug" messages from xfs_repair. > But it means that everyone needs to subscribe to the new list > and probably unsubscribe from the old list. I dont see how we can > avoid that in the long term, but I'd like to minimise the pain > as much as possible for everyone. > > Again, I'm open to suggestions on how to approach this and maintain > the oss list aliases for long enough that people and search engines > learn about the new list. > > I would like to make this as painless as possible for everyone. This > isn't the only solution to the problems we have with oss.sgi.com, > but it's the path of least effort/greatest gain for me. If anyone > has any ideas on alternative solutions, reservations about moving to > kernel.org infrastructure and/or suggestions to make it less painful > for everyone, please speak up now. > > Cheers, > > Dave. > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > We'll make the necessary updates to oss.sgi.com to make the transition to vger.kernel.org as seamless as possible. Thanks, Troy --------------000902030909030903060406 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit On 08/06/2014 07:09 PM, Dave Chinner wrote: 
Hi folks,

A few recent incidents, discoveries and comments have me concerned
about the viability of using oss.sgi.com to host XFS deveopment and
community support.

We are very grateful for the time, effort and money that SGI has put
into providing oss.sgi.com for us over many, many years, but these
recent issues have brought the state of oss.sgi.com and hence it's
viability as a host for XFS development to my immediate attention.

Ultimately, as the XFS maintainer, I'm responsible for the contents
of the pull requests sent to Linus and the code we distribute to
users, distros and developers. That means I need to be able to trust
that the hosting infrastructure is secure and well maintained.

The short story is that I can't trust oss.sgi.com to be maintained
and secure anymore. The recent DOS issues with oss.sgi.com made it
clear that it is essentially unmaintained and the SGI admins don't
have time to address issues that arise. This little snippet of the
conversion about blocking the rogue spider causing the recent
ftp and gitweb DOS problems is instructive:

[19/07/14 09:07] <sandeen> trev, it's you guys' box :)
[19/07/14 09:07] <sandeen> you get to make it work 
[19/07/14 09:07] <dchinner__> I am not eh administrator, and if I'm forced to do this sort of thing I'll just take the content elsewhere....
[19/07/14 09:08] <trev> dchinner__, please do so. I don't have much time for oss anymore

It should be no surprise that since this conversation I've been
looking at what is involved in moving everything XFS off oss.sgi.com
to kernel.org.  Right now I have the main XFS repositories up to
date on kernel.org.  For userspace I've simply pushed the current
trees and tags to the pre-existing repositories here:

	git://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git
	git://git.kernel.org/pub/scm/fs/xfs/xfsdump-dev.git
	git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git

These trees currently have the same content as the trees on
oss.sgi.com.  I may rename these as a result of discussions here
(e.g. some people don't like the -dev suffix on the trees) so it's
best for people to continue to use the trees on oss.sgi.com until
this disucssion comes to a conclusion.

My new kernel dev tree can be found here:

	git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git

This is my immediate concern: this tree, regardless of anything
else, the tree I am going to be asking Linus to pull from - it is
now *my* master tree and the tree on oss.sgi.com will simply mirror
that tree.

For the short term, I will set up a cron job to keep the oss trees
up to date with the trees on kernel.org. By "short-term" I mean till
the end of the year at most. This will allow people time to change
their workflows, update their repos, bookmarks, etc in their own
time so hopefully not take anyone by surprise when the trees on
oss.sgi.com stop updating. "short-term" is a rubbery concept - if
anyone things it should be longer or shorter or whether a completely
different approach is warranted, please speak up.

Over the next few days I will move the remaining xfs trees to
kernel.org - the historical kernel archive and documentation trees -
and then I'll maintain them as the primary trees with the same
short term mirroring backup.

In moving these trees, we will need to update some documentation
(e.g. the "where to get" documentation on the xfs.org wiki) and
links, as well as place a "readme" in the gitweb main page on
oss.sgi.com to indicate that the up-to-date XFS trees are now on
kernel.org and documenting the drop-dead date to when the trees on
oss will no longer be kept up to date.

The only remaining issue is what to do about tarball releases for
xfsprogs/xfsdump/fstests. We currently have a bunch of historic
releases in the ftp release area on oss.sgi.com. I will organise a
release directory on kernel.org for future releases (location yet to
be confirmed), but I'm not sure what to do with the older releases.
I'm open to suggestions here, but the limit of what I will try to
move to kernel.org is signed tarballs that I have verified.

For xfstests, I think this would be a good time to rename the
project officially as well (i.e. to "fstests"). I'll need to talk to
the kernel.org admins on where to locate it (pub/scm/fs/fstests is
the best candidate, I think), but in the mean time I'll just mirror
to oss.sgi.com as per the above so nobody needs to change anything
until we sort out the final location/name of the tree. If anyone has
any other ideas on this, please let me know, otherwise I'll just
proceed with this plan.

In conjunction with this source tree move, I'd also like to start the
move the mailing list. We have ongoing spam, performance and user
access issues with oss.sgi.com, so IMO if we are moving source trees
off this host we should also move the mailing list to kernel.org
infrastructure.

To that end, there is a linux-xfs@vger.kernel.org
list already - it was created at the same time that the above
kernel.org repositories were created, but we've never used it. It
is archived here:

	http://www.spinics.net/lists/linux-xfs/

Moving the mailing list is going to be something that affects more
than just the developers - we've got lots of documentation that
points at this list and there are lots of users that are subscribed,
read it though nntp gateways, have aliases for it, etc so we need
a good transition plan here.

I'm not sure what the best approach - perhaps just
forwarding all email from xfs@oss.sgi.com to
linux-xfs@vger.kernel.org will solve most transitional problems
for users that aren't aware of the change or are following old
documentation or "please report bug" messages from xfs_repair.
But it means that everyone needs to subscribe to the new list
and probably unsubscribe from the old list. I dont see how we can
avoid that in the long term, but I'd like to minimise the pain
as much as possible for everyone.

Again, I'm open to suggestions on how to approach this and maintain
the oss list aliases for long enough that people and search engines
learn about the new list.

I would like to make this as painless as possible for everyone. This
isn't the only solution to the problems we have with oss.sgi.com,
but it's the path of least effort/greatest gain for me. If anyone
has any ideas on alternative solutions, reservations about moving to
kernel.org infrastructure and/or suggestions to make it less painful
for everyone, please speak up now.

Cheers,

Dave.
  

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

We'll make the necessary updates to oss.sgi.com to make the transition to vger.kernel.org
as seamless as possible.

Thanks,
Troy

--------------000902030909030903060406-- From sandeen@sandeen.net Tue Aug 12 11:42:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4169A7F3F for ; Tue, 12 Aug 2014 11:42:24 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id A008CAC008 for ; Tue, 12 Aug 2014 09:42:20 -0700 (PDT) X-ASG-Debug-ID: 1407861737-04cbb0508cd9a10001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id XVjNpOWU1WJFTqm4 for ; Tue, 12 Aug 2014 09:42:18 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from Liberator-2.local (24-113-182-223.wavecable.com [24.113.182.223]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 1CB5863C6058; Tue, 12 Aug 2014 11:42:16 -0500 (CDT) Message-ID: <53EA43E6.5010100@sandeen.net> Date: Tue, 12 Aug 2014 09:42:14 -0700 From: Eric Sandeen MIME-Version: 1.0 To: Felipe Monteiro de Carvalho , xfs@oss.sgi.com Subject: Re: Location of backup superblocks References: X-ASG-Orig-Subj: Re: Location of backup superblocks In-Reply-To: X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407861738 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8366 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/12/14, 3:49 AM, Felipe Monteiro de Carvalho wrote: > Hello, > > I am trying to recover a XFS partition (or series of partitions) where > the main superblock was corrupted, and I see that there are multiple > superblock copies. I'd like to guess the partition start and size > also. so I guess you mean that the partition table was corrupted as well? > I see that the partition size can be calculated with sb_blocksize* sb_dblocks > > But what about the partition start? I think I can guess it based in > the position of the found superblocks. > > Any ideas where is the code that writes to disk those backup > superblocks? So far to me it looks like that their position is > calculated as disk_size / 4 rounded (nearest rounding?) to a multiple > of sb_blocksize, but having the exact code part would be better of > course =) Or even better, a list of backup superblock positions... How hard have you tried looking? ;) In xfsprogs, you can find this if you search for "backup": " set allocation group superblock\n" "\n" " Example:\n" "\n" " 'sb 7' - set location to 7th allocation group superblock, set type to 'sb'\n" "\n" " Located in the first sector of each allocation group, the superblock\n" " contains the base information for the filesystem.\n" " The superblock in allocation group 0 is the primary. The copies in the\n" " remaining allocation groups only serve as backup for filesystem recovery.\n" " The icount/ifree/fdblocks/frextents are only updated in superblock 0.\n" The on-disk structure document describes the same thing: http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Allocation_Groups.html#Superblocks IOWs: there are superblocks in each allocation group. They are located in the first sector of each AG, therefore the primary is in sector 0 of the filesystem, and the secondaries are evenly spaced, at the first sector of of AGs 1, 2, 3, 4, etc. If you read the mkfs manpage, you'll see that ag size can be specified at mkfs time, so there is no universal answer. However, the default is to split the filesystem into 4 AGs, unless the filesystem is > 1T, in which case it will create 1T allocation groups. If you want to look at the actual code that makes these geometry calculations, you can find it by tracing through mkfs, paying attention to the variables which get set by the agcount and/or agsize options. -Eric From bfoster@redhat.com Tue Aug 12 11:51:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E2D307F3F for ; Tue, 12 Aug 2014 11:51:57 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 91AC6304043 for ; Tue, 12 Aug 2014 09:51:54 -0700 (PDT) X-ASG-Debug-ID: 1407862309-04bdf06ef8d9c00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 0g0aJX7M2Gle8T4D (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 12 Aug 2014 09:51:50 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7CGpjs7011655 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Aug 2014 12:51:46 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7CGpj5G007666; Tue, 12 Aug 2014 12:51:45 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2FE7812577C; Tue, 12 Aug 2014 12:51:43 -0400 (EDT) Date: Tue, 12 Aug 2014 12:51:43 -0400 From: Brian Foster To: "Carlos E. R." Cc: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140812165143.GB46654@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407862310 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Content-ID: > > > El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: > >El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > > >but all of them are about 401M before compression. The upload will take > >long, my ADSL upload is 0.3M/s at most. > > > I have shared (view) on google drive a folder with the three files. Both > Brian Foster and Mark Tinguely should have got a link on the mail from me. > If somebody else wants access, just tell me. > I see the same thing from repair that was in your repair output: block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 If I take a look at the btrees as is, I see "235:[12608397,10]" included in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb 0x2000781). If I skip the mount, zero the log and repair, everything seems Ok. I can allocate the remainder of available space and rm -rf everything in the fs without an error. Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in the cntbt, which is clearly a duplicate entry. This is what repair detects and cleans up and seems to lead to the shutdown. E.g., if I mount and use the fs, I can hit an assert or failure just by attempting to allocate the rest of the space in the fs. If that is the state of the fs on disk, it's only a matter of time we explode due to allocating and freeing that range of space or possibly attempting to allocate that space twice. Mark mentioned that he didn't see the superblock item in the log with regard to the freeze. I don't see that either... which perhaps suggests that this all happens during the wake-from-hibernate sequence..? My understanding is that we should freeze on hibernate, thus force everything out to the log, write an unmount record and then dirty the log with a superblock transaction. Therefore, that should be the only item in the log post-freeze. Here, we have various items in the log including several logged buffers that correspond to the cntbt block that ends up corrupted (daddr 0xf427c08). Given the failure occurs on freeing an extent via the xfs_eofblocks scanner, perhaps this extent was initially allocated as speculative preallocation and the eofblocks scanner is where we happen to first identify the corrupted cntbt. What is strange is that, as mentioned previously, the space appears to be free if I zero the log, so that means it was probably free before the freeze. It seems highly unlikely for a file to gain preallocation, be written out and then get trimmed by the scanner all on wake-from-hibernate. Carlos, How long after hibernate does the shutdown/crash typically occur? Do you basically wake-up and within a few seconds the filesystem crashes, or is it some time (minutes) later? If the former, I wonder if it's possible that the scanner returns to life pointing to a stale or freed incore inode and does something bogus based on that. Brian > - -- Cheers > Carlos E. R. > > (from 13.1 x86_64 "Bottle" (Minas Tirith)) > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (GNU/Linux) > > iF4EAREIAAYFAlPpXQYACgkQja8UbcUWM1wQ9gEAl1WI24UDArdlWHh3J2ih3AV3 > nMTwDRqTrT0Rk2BJOB8A/1BOzzn3/IX16sPCsYoqGEyXNHcNXWBHENShlyWzJGUr > =W+BG > -----END PGP SIGNATURE----- > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Tue Aug 12 11:52:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9747F7F3F for ; Tue, 12 Aug 2014 11:52:14 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 50B45304043 for ; Tue, 12 Aug 2014 09:52:14 -0700 (PDT) X-ASG-Debug-ID: 1407862331-04bdf06ef8d9c40001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id USHyzNvX96J6nuGK for ; Tue, 12 Aug 2014 09:52:12 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from Liberator-2.local (24-113-182-223.wavecable.com [24.113.182.223]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 5DF0663C6058; Tue, 12 Aug 2014 11:52:11 -0500 (CDT) Message-ID: <53EA463A.5090203@sandeen.net> Date: Tue, 12 Aug 2014 09:52:10 -0700 From: Eric Sandeen MIME-Version: 1.0 To: Felipe Monteiro de Carvalho , xfs@oss.sgi.com Subject: Re: Location of backup superblocks References: <53EA43E6.5010100@sandeen.net> X-ASG-Orig-Subj: Re: Location of backup superblocks In-Reply-To: <53EA43E6.5010100@sandeen.net> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407862332 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8366 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/12/14, 9:42 AM, Eric Sandeen wrote: > On 8/12/14, 3:49 AM, Felipe Monteiro de Carvalho wrote: >> Hello, >> >> I am trying to recover a XFS partition (or series of partitions) where >> the main superblock was corrupted, and I see that there are multiple >> superblock copies. I'd like to guess the partition start and size >> also. > > so I guess you mean that the partition table was corrupted as well? > >> I see that the partition size can be calculated with sb_blocksize* sb_dblocks >> >> But what about the partition start? I think I can guess it based in >> the position of the found superblocks. >> >> Any ideas where is the code that writes to disk those backup >> superblocks? So far to me it looks like that their position is >> calculated as disk_size / 4 rounded (nearest rounding?) to a multiple >> of sb_blocksize, but having the exact code part would be better of >> course =) Or even better, a list of backup superblock positions... > > How hard have you tried looking? ;) > > In xfsprogs, you can find this if you search for "backup": > > " set allocation group superblock\n" > "\n" > " Example:\n" > "\n" > " 'sb 7' - set location to 7th allocation group superblock, set type to 'sb'\n" > "\n" > " Located in the first sector of each allocation group, the superblock\n" > " contains the base information for the filesystem.\n" > " The superblock in allocation group 0 is the primary. The copies in the\n" > " remaining allocation groups only serve as backup for filesystem recovery.\n" > " The icount/ifree/fdblocks/frextents are only updated in superblock 0.\n" > > The on-disk structure document describes the same thing: > > http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Allocation_Groups.html#Superblocks or the xfs(5) manpage :) -eric From bfoster@redhat.com Tue Aug 12 14:31:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 27C887F3F for ; Tue, 12 Aug 2014 14:31:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 066258F8081 for ; Tue, 12 Aug 2014 12:31:15 -0700 (PDT) X-ASG-Debug-ID: 1407871874-04cb6c4c93c3990001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id A1sOEFink76fsXLW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 12 Aug 2014 12:31:14 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7CJV7so024978 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Aug 2014 15:31:07 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7CJV6uO030561; Tue, 12 Aug 2014 15:31:06 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id C50BC12577C; Tue, 12 Aug 2014 15:31:04 -0400 (EDT) Date: Tue, 12 Aug 2014 15:31:04 -0400 From: Brian Foster To: Alex Lyakas Cc: Dave Chinner , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140812193104.GC46654@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407871874 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > Hello Dave, Brian, > I will describe a generic reproduction that you ask for. > > It was performed on pristine XFS code from 3.8.13, taken from here: > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git > This seems generic enough to me. Could you try on a more recent kernel? Dave had mentioned there were fixes in this area of log recovery, so a bisect might be all that is necessary to track down the patch you need. Otherwise, we can pick up debugging from something more recent. Brian > top commit being: > commit dbf932a9b316d5b29b3e220e5a30e7a165ad2992 > Author: Greg Kroah-Hartman > Date: Sat May 11 13:57:46 2013 -0700 > > Linux 3.8.13 > > > I made a single (I swear!) code change in XFS: > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 96fcbb8..d756bf6 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -3736,6 +3736,9 @@ xlog_recover( > if ((error = xlog_find_tail(log, &head_blk, &tail_blk))) > return error; > > + xfs_notice(log->l_mp, "Sleep 10s before xlog_do_recover"); > + msleep(10000); > + > if (tail_blk != head_blk) { > /* There used to be a comment here: > * > > Fresh XFS was formatted on a 20 GB block device within a VM, using: > mkfs.xfs -f -K /dev/vde -p /etc/zadara/xfs.protofile > and: > root@vc-00-00-1383-dev:~# cat /etc/zadara/xfs.protofile > dummy : bootfilename, not used, backward compatibility > 0 0 : numbers of blocks and inodes, not used, > backward compatibility > d--777 0 0 : set 777 perms for the root dir > $ > $ > > I mounted XFS with the following options: > rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 > > I started a couple of processes writing files sequentially onto this mount > point, and after few seconds crashed the VM. > When the VM came up, I took the metadump file and placed it in: > https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing > > Then I set up the following Device Mapper target onto /dev/vde: > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > I am attaching the code (and Makefile) of dm-linear-custom target. It is > exact copy of dm-linear, except that it has a module parameter. With the > parameter set to 0, this is an identity mapping onto /dev/vde. If the > parameter is set to non-0, all WRITE bios are failed with ENOSPC. There is a > workqueue to fail them in a different context (not sure if really needed, > but that's what our "real" custom > block device does). > > Now I did: > mount -o noatime,sync /dev/mapper/VDE /mnt/xfs > > The log recovery flow went into the sleep that I added, and then I did: > echo 1 > /sys/module/dm_linear_custom/parameters/fail_writes > > Problem reproduced: > Aug 12 14:23:04 vc-00-00-1383-dev kernel: [ 175.000657] XFS (dm-0): > Mounting Filesystem > Aug 12 14:23:04 vc-00-00-1383-dev kernel: [ 175.026991] XFS (dm-0): Sleep > 10s before xlog_do_recover > Aug 12 14:23:14 vc-00-00-1383-dev kernel: [ 185.028113] XFS (dm-0): > Starting recovery (logdev: internal) > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556622] XFS (dm-0): > metadata I/O error: block 0x2 ("xlog_recover_iodone") error 28 numblks 1 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556675] XFS (dm-0): > metadata I/O error: block 0x40 ("xlog_recover_iodone") error 28 numblks 16 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556680] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556683] XFS (dm-0): I/O > Error Detected. Shutting down filesystem > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556684] XFS (dm-0): Please > umount the filesystem and rectify the problem(s) > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556766] XFS (dm-0): > metadata I/O error: block 0xa00002 ("xlog_recover_iodone") error 5 numblks 1 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556769] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556771] XFS (dm-0): > metadata I/O error: block 0xa00008 ("xlog_recover_iodone") error 5 numblks 8 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556774] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556776] XFS (dm-0): > metadata I/O error: block 0xa00010 ("xlog_recover_iodone") error 5 numblks 8 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556779] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556781] XFS (dm-0): > metadata I/O error: block 0xa00018 ("xlog_recover_iodone") error 5 numblks 8 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556783] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556785] XFS (dm-0): > metadata I/O error: block 0xa00040 ("xlog_recover_iodone") error 5 numblks > 16 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556788] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556790] XFS (dm-0): > metadata I/O error: block 0xa00050 ("xlog_recover_iodone") error 5 numblks > 16 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556793] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556880] XFS (dm-0): > metadata I/O error: block 0xa00001 ("xlog_recover_iodone") error 28 numblks > 1 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556884] XFS (dm-0): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.556977] XFS (dm-0): log > mount/recovery failed: error 28 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.557215] XFS (dm-0): log > mount failed > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.573194] XFS (): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.573214] XFS (): metadata > I/O error: block 0x18 ("xlog_recover_iodone") error 28 numblks 8 > Aug 12 14:23:18 vc-00-00-1383-dev kernel: [ 188.574685] XFS (): > xfs_do_force_shutdown(0x1) called from line 377 of file > /mnt/work/alex/linux-stable/source/fs/xfs/xfs_log_recover.c. Return address > = 0xffffffffa0349f68 > > As you see, after mount completes, IO callbacks are still arriving and > printing junk (empty string in this case). Immediately after that kernel > dies. > > Is this description generic enough? > > Thanks, > Alex. > > > > > -----Original Message----- From: Brian Foster > Sent: 12 August, 2014 3:03 PM > To: Dave Chinner > Cc: Alex Lyakas ; xfs@oss.sgi.com > Subject: Re: use-after-free on log replay failure > > On Tue, Aug 12, 2014 at 07:52:07AM +1000, Dave Chinner wrote: > >On Mon, Aug 11, 2014 at 09:20:57AM -0400, Brian Foster wrote: > >> On Sun, Aug 10, 2014 at 03:20:50PM +0300, Alex Lyakas wrote: > >> > On Wed, Aug 6, 2014 at 6:20 PM, Brian Foster > > > >wrote: > >> > > On Wed, Aug 06, 2014 at 03:52:03PM +0300, Alex Lyakas wrote: > >..... > >> > >> But I believe, my analysis shows that during the mount sequence XFS > >> > >> does not > >> > >> wait properly for all the bios to complete, before failing the > > > >>> mount > >> > >> sequence back to the caller. > >> > >> > >> > > > >> > > As an experiment, what about the following? Compile tested only and > >> > > not > >> > > safe for general use. > >... > >> > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > >> > > index cd7b8ca..fbcf524 100644 > >> > > --- a/fs/xfs/xfs_buf.c > >> > > +++ b/fs/xfs/xfs_buf.c > >> > > @@ -1409,19 +1409,27 @@ xfs_buf_iorequest( > >> > > * case nothing will ever complete. It returns the I/O error code, > >> > > if any, or > >> > > * 0 if there was no error. > >> > > */ > >> > > -int > >> > > -xfs_buf_iowait( > >> > > - xfs_buf_t *bp) > >> > > +static int > >> > > +__xfs_buf_iowait( > >> > > + struct xfs_buf *bp, > >> > > + bool skip_error) > >> > > { > >> > > trace_xfs_buf_iowait(bp, _RET_IP_); > >> > > > >> > > - if (!bp->b_error) > >> > > + if (skip_error || !bp->b_error) > >> > > wait_for_completion(&bp->b_iowait); > >> > > > >> > > trace_xfs_buf_iowait_done(bp, _RET_IP_); > >> > > return bp->b_error; > >> > > } > >> > > > >> > > +int > >> > > +xfs_buf_iowait( > >> > > + struct xfs_buf *bp) > >> > > +{ > >> > > + return __xfs_buf_iowait(bp, false); > >> > > +} > >> > > + > >> > > xfs_caddr_t > >> > > xfs_buf_offset( > >> > > xfs_buf_t *bp, > >> > > @@ -1866,7 +1874,7 @@ xfs_buf_delwri_submit( > >> > > bp = list_first_entry(&io_list, struct xfs_buf, > > > >> b_list); > >> > > > >> > > list_del_init(&bp->b_list); > >> > > - error2 = xfs_buf_iowait(bp); > >> > > + error2 = __xfs_buf_iowait(bp, true); > >> > > xfs_buf_relse(bp); > >> > > if (!error) > >> > > error = error2; > > > >Not waiting here on buffer error should not matter. Any buffer that > >is under IO and requires completion should be referenced, and that > >means it should be caught and waited on by xfs_wait_buftarg() in the > >mount failure path after log recovery fails. > > > > I think that assumes the I/O is successful. Looking through > xlog_recover_buffer_pass2() as an example, we read the buffer which > should return with b_hold == 1. The delwri queue increments the hold and > we xfs_buf_relse() in the return path (i.e., buffer is now held by the > delwri queue awaiting submission). > > Sometime later we delwri_submit()... xfs_buf_iorequest() does an > xfs_buf_hold() and xfs_buf_rele() within that single function. The > delwri_submit() releases its hold after xfs_buf_iowait(), which I guess > at that point bp should go onto the lru (b_hold back to 1 in > xfs_buf_rele(). Indeed, the caller has lost scope of the buffer at this > point. > > So unless I miss something or got the lifecycle wrong here, which is > easily possible ;), this all hinges on xfs_buf_iowait(). That's where > the last hold forcing the buffer to stay around goes away. > xfs_buftarg_wait_rele() will dispose the buffer if b_hold == 1. If > xfs_buf_iowait() is racy in the event of I/O errors via the bio > callback, I think this path is susceptible just the same. > > >> > > --- > >> > I think that this patch fixes the problem. I tried reproducing it like > >> > 30 times, and it doesn't happen with this patch. Dropping this patch > >> > reproduces the problem within 1 or 2 tries. Thanks! > >> > What are next steps? How to make it "safe for general use"? > >> > > >> > >> Ok, thanks for testing. I think that implicates the caller bypassing the > >> expected blocking with the right sequence of log recovery I/Os and > >> device failure. TBH, I'd still like to see the specifics, if possible. > >> Could you come up with a generic reproducer for this? I think a metadump > >> of the fs with the dirty log plus whatever device failure simulation > >> hack you're using would suffice. > > > >The real issue is we don't know exactly what code is being tested > >(it's 3.8 + random bug fix backports + custom code). Even if we have > >a reproducer there's no guarantee it will reproduce on a current > >kernel. IOWs, we are stumbling around in the dark bashing our heads > >against everything in the room, and that just wastes everyone's > >time. > > > >We need a reproducer that triggers on a current, unmodified > >kernel release. You can use dm-faulty to error out all writes just > >like you are doing with your custom code. See > >xfstests::tests/generic/321 and common/dmflakey for to do this. > >Ideally the reproducer is in a form that xfstests can use.... > > > >If you can't reproduce it on an upstream kernel, then git bisect is > >your friend. It will find the commit that fixed the problem you are > >seeing.... > > > > Ugh, yeah. The fact that this was customized as such apparently went > over my head. I agree completely. This needs to be genericized to a > pristine, preferably current kernel. The experiment patch could be > papering over something completely different. > > >> The ideal fix is not yet clear to me. > > > >We are not even that far along - the root cause of the bug is not at > >all clear to me. :/ > > > > Yeah.. the above was just the theory that motivated the experiment in > the previously posted patch. It of course remains a theory until we can > see the race in action. I was referring to the potential fix for the > raciness of xfs_buf_iowait() with regard to bio errors and the wq iodone > handling, while still asking for a reproducer to confirm the actual > problem. FWIW, I'm not too high on changes in the buf management code, > even a smallish behavior change, without a real trace of some sort that > documents the problem and justifies the change. > > Brian > > >Cheers, > > > >Dave. > >-- > >Dave Chinner > >david@fromorbit.com > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From robin.listas@gmail.com Tue Aug 12 16:17:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CB9AE7F3F for ; Tue, 12 Aug 2014 16:17:59 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A8D4030406A for ; Tue, 12 Aug 2014 14:17:56 -0700 (PDT) X-ASG-Debug-ID: 1407878273-04cb6c4c96c84b0001-NocioJ Received: from mail-wi0-f182.google.com (mail-wi0-f182.google.com [209.85.212.182]) by cuda.sgi.com with ESMTP id B4vtzg74FshPMzV9 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 12 Aug 2014 14:17:54 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.182 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.182] Received: by mail-wi0-f182.google.com with SMTP id d1so6425638wiv.3 for ; Tue, 12 Aug 2014 14:17:53 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.182] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.182] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=prugJHtRLy0L2DJcFJbia6pVB0lzU37ud4TLPsjyMQQ=; b=XSznVoZAJz7nECcSS4TRC60RKgJcgb8lCSw3Qnp9y5wnfq1YfTU99j7h7ZmDpqH4wQ NKhbThw1aia6eM4zrTguXZM2g37asCFDXGyFZ5DcItbS2QaMKz7gApHsC8pbUP6O8rKH w+L8t6FMV+wDHMN5HJCIIYwlxHno12QLfd+Ubfb4czuZqnHnlF/VKsjsaT586csQIWrW X5nreg+AB1H7HGEdC0yTmnPbsTy67qJpg8Arlvg5IsNYHPL04WZcc8NZp4xDObX1uSOq yCqzivfTTGFTj3GA3ngd04FFjYlizQLNatjAeW+dY64LjuORfBZi/Hg92LIQJDe6VpNF TyuQ== X-Received: by 10.180.86.202 with SMTP id r10mr31217599wiz.6.1407878273405; Tue, 12 Aug 2014 14:17:53 -0700 (PDT) Received: from Telcontar.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id i8sm797868wib.6.2014.08.12.14.17.50 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 Aug 2014 14:17:51 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 83C6960682 for ; Tue, 12 Aug 2014 23:17:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id NO5JKXJ2m_cJ for ; Tue, 12 Aug 2014 23:17:48 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 5D65B605B8 for ; Tue, 12 Aug 2014 23:17:48 +0200 (CEST) Date: Tue, 12 Aug 2014 23:17:36 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@Telcontar.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20140812165143.GB46654@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463808511-1570526093-1407878268=:14631" X-Barracuda-Connect: mail-wi0-f182.google.com[209.85.212.182] X-Barracuda-Start-Time: 1407878274 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463808511-1570526093-1407878268=:14631 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tuesday, 2014-08-12 at 12:51 -0400, Brian Foster wrote: > On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > I see the same thing from repair that was in your repair output: > > block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 Is it possible to find out what file uses that block? I have a non-obfuscated copy of the metadata. Knowing the file, we can know what application is involved - and that might help, or perhaps not. > If I take a look at the btrees as is, I see "235:[12608397,10]" included > in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb > 0x2000781). If I skip the mount, zero the log and repair, everything > seems Ok. I can allocate the remainder of available space and rm -rf > everything in the fs without an error. > > Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in > the cntbt, which is clearly a duplicate entry. This is what repair > detects and cleans up and seems to lead to the shutdown. E.g., if I > mount and use the fs, I can hit an assert or failure just by attempting > to allocate the rest of the space in the fs. If that is the state of the > fs on disk, it's only a matter of time we explode due to allocating and > freeing that range of space or possibly attempting to allocate that > space twice. I'm not sure if I follow you. The sequence of events here is: a) hibernate b) thaw c) immediately, in memory corruption found and kernel error message. Filesystem is switched to read only. System is unstable, has to be halted or rebooted. Umount is impossible. d) (¬) Reboot e) Mount (¬), manual umount, xfs_repair (¬), mount (photos of metadata taken at the appropriate points (marked with ¬)) This the point I'm at now. Are you saying that the filesystem can explode at any time now? I have not written any files, beyond what the desktop does automatically. What I have not done (on your request), this time, is: f) backup, format, restore. > Mark mentioned that he didn't see the superblock item in the log with > regard to the freeze. I don't see that either... which perhaps suggests > that this all happens during the wake-from-hibernate sequence..? My > understanding is that we should freeze on hibernate, thus force > everything out to the log, write an unmount record and then dirty the > log with a superblock transaction. Therefore, that should be the only > item in the log post-freeze. Here, we have various items in the log > including several logged buffers that correspond to the cntbt block that > ends up corrupted (daddr 0xf427c08). > > Given the failure occurs on freeing an extent via the xfs_eofblocks > scanner, perhaps this extent was initially allocated as speculative > preallocation and the eofblocks scanner is where we happen to first > identify the corrupted cntbt. What is strange is that, as mentioned > previously, the space appears to be free if I zero the log, so that > means it was probably free before the freeze. It seems highly unlikely > for a file to gain preallocation, be written out and then get trimmed by > the scanner all on wake-from-hibernate. Well, I understand little of that, but if you do, and can do whatever modifications need to be done to the code, that's fine with me :-) > Carlos, > > How long after hibernate does the shutdown/crash typically occur? Do you > basically wake-up and within a few seconds the filesystem crashes, or is > it some time (minutes) later? Instantly during the wake-up (thaw), according to the log. I'm typically not present when it happens: my routine is switch on the computer, then go make coffee/tea, and then return and start using the machine. It takes a minute or two to wake up from hibernation, and then the machine is sluggish for a minute or two more while processes start doing things and claiming chunks from swap, mail is fetched, etc. And instead of starting work, I find the machine in a bad state. Look, an excerpt from the last event (the full log is in another post yesterday), but taken from another log file with finer grained timestaps: <30>1 2014-08-11T05:22:25.861413+02:00 Telcontar ntp 5867 - - Shutting down network time protocol daemon (NTPD)..done <30>1 2014-08-11T05:22:25.917520+02:00 Telcontar systemd 1 - - Stopped LSB: Network time protocol daemon (ntpd). <28>1 2014-08-11T05:22:25.977431+02:00 Telcontar pm-utils - - - Hibernating (95)... <7>1 2014-08-11T05:22:30.605714+02:00 Telcontar kernel - - - [73220.857511] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] <7>1 2014-08-11T05:22:30.605728+02:00 Telcontar kernel - - - [73220.857516] PM: Marking nosave pages: [mem 0xbff90000-0xffffffff] <7>1 2014-08-11T05:22:30.605729+02:00 Telcontar kernel - - - [73220.858132] PM: Basic memory bitmaps created <4>1 2014-08-11T15:17:18.911655+02:00 Telcontar kernel - - - [73221.946553] Syncing filesystems ... done. <4>1 2014-08-11T15:17:18.911744+02:00 Telcontar kernel - - - [73222.682396] Freezing user space processes ... (elapsed 0.002 seconds) done. <6>1 2014-08-11T15:17:18.911746+02:00 Telcontar kernel - - - [73222.685031] PM: Preallocating image memory... done (allocated 1140745 pages) The "Hibernating (95)" is written by a script of mine in "/etc/pm/sleep.d/95cosas" which main purpose is to write to the log that line. Then the machine wakes up, hours later - despite the timestamp not saying so (the time jump is written instead lines above): <6>1 2014-08-11T15:17:18.911768+02:00 Telcontar kernel - - - [73228.307358] CPU3 is up <6>1 2014-08-11T15:17:18.911769+02:00 Telcontar kernel - - - [73228.335219] PM: noirq restore of devices complete after 22.779 msecs <6>1 2014-08-11T15:17:18.911770+02:00 Telcontar kernel - - - [73228.335354] PM: early restore of devices complete after 0.110 msecs <7>1 2014-08-11T15:17:18.911771+02:00 Telcontar kernel - - - [73228.508789] uhci_hcd 0000:00:1a.0: setting latency timer to 64 <4>1 2014-08-11T15:17:18.911771+02:00 Telcontar kernel - - - [73228.508809] usb usb3: root hub lost power or was reset ... <6>1 2014-08-11T15:17:18.911838+02:00 Telcontar kernel - - - [73230.798419] r8169 0000:06:00.0 eth0: link up <6>1 2014-08-11T15:17:18.911839+02:00 Telcontar kernel - - - [73231.245103] PM: restore of devices complete after 2736.365 msecs <4>1 2014-08-11T15:17:18.911839+02:00 Telcontar kernel - - - [73231.514298] Restarting kernel threads ... done. <4>1 2014-08-11T15:17:18.911842+02:00 Telcontar kernel - - - [73231.518736] Restarting tasks ... done. <7>1 2014-08-11T15:17:18.911843+02:00 Telcontar kernel - - - [73231.562307] PM: Basic memory bitmaps freed <28>1 2014-08-11T15:17:19.946945+02:00 Telcontar rtkit-daemon 4535 - - The canary thread is apparently starving. Taking action. <30>1 2014-08-11T15:17:19.947259+02:00 Telcontar rtkit-daemon 4535 - - Demoting known real-time threads. <29>1 2014-08-11T15:17:19.951276+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4541 of process 4534 (/usr/bin/pulseaudio). <29>1 2014-08-11T15:17:19.951546+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4540 of process 4534 (/usr/bin/pulseaudio). <29>1 2014-08-11T15:17:19.951799+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4534 of process 4534 (/usr/bin/pulseaudio). <29>1 2014-08-11T15:17:19.952033+02:00 Telcontar rtkit-daemon 4535 - - Demoted 3 threads. <20>1 2014-08-11T15:17:20.808125+02:00 Telcontar dovecot - - - imap: Warning: Time jumped forwards 33996 seconds <20>1 2014-08-11T15:17:20.840771+02:00 Telcontar dovecot - - - imap: Warning: Time jumped forwards 35660 seconds <22>1 2014-08-11T15:17:20.841006+02:00 Telcontar dovecot - - - imap(cer): Disconnected for inactivity in=237010 out=9273919 <1>1 2014-08-11T15:17:22.173611+02:00 Telcontar kernel - - - [73235.439809] XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.10/linux-3.11/fs/xfs/xfs_alloc.c. Caller 0xffffffffa0c39fe9 <1>1 2014-08-11T15:17:22.173625+02:00 Telcontar kernel - - - [73235.439809] ... <5>1 2014-08-11T15:17:22.174493+02:00 Telcontar kernel - - - [73235.440751] XFS (sdd5): xfs_do_force_shutdown(0x8) called from line 916 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.10/linux-3.11/fs/xfs/xfs_bmap.c. Return address = 0xffffffffa0c4c3d8 <1>1 2014-08-11T15:17:22.232589+02:00 Telcontar kernel - - - [73235.498979] XFS (sdd5): Corruption of in-memory data detected. Shutting down filesystem <1>1 2014-08-11T15:17:22.232594+02:00 Telcontar kernel - - - [73235.499136] XFS (sdd5): Please umount the filesystem and rectify the problem(s) <30>1 2014-08-11T15:17:22.716184+02:00 Telcontar systemd 1 - - Time has been changed <30>1 2014-08-11T15:17:27.171188+02:00 Telcontar acpid - - - 1 client rule loaded <28>1 2014-08-11T15:17:29.413944+02:00 Telcontar pm-utils - - - Thawing (95)... <29>1 2014-08-11T15:17:30.048264+02:00 Telcontar dbus 1020 - - [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper) <30>1 2014-08-11T15:17:30.833496+02:00 Telcontar systemd 1 - - Starting LSB: Network time protocol daemon (ntpd)... <4>1 2014-08-11T15:17:30.990470+02:00 Telcontar kernel - - - [73244.256012] XFS (sdd5): xfs_log_force: error 5 returned. <29>1 2014-08-11T15:17:31.324585+02:00 Telcontar dbus 1020 - - [system] Activated service 'org.freedesktop.PackageKit' failed: Cannot launch daemon, file not found or permissions invalid As you see, the corruption is detected instantly after waking up, before pm-utils scripts have a chance to run. > If the former, I wonder if it's possible that the scanner returns to > life pointing to a stale or freed incore inode and does something bogus > based on that. Well, as I said, that's above my understanding ;-) - -- Cheers, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlPqhHwACgkQtTMYHG2NR9WmrwCglBRRHEMgU9mCEHkU9iHqYehX +1AAn2oUn8/M3Rfb7mLWapLqYxDfvHNv =9Yft -----END PGP SIGNATURE----- ---1463808511-1570526093-1407878268=:14631-- From sandeen@sandeen.net Tue Aug 12 16:28:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DAD707F3F for ; Tue, 12 Aug 2014 16:28:07 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A91738F8087 for ; Tue, 12 Aug 2014 14:28:04 -0700 (PDT) X-ASG-Debug-ID: 1407878880-04cbb0508ae6b20001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id whWuC1qNMpfasdJ2 for ; Tue, 12 Aug 2014 14:28:00 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from Liberator-2.local (24-113-182-223.wavecable.com [24.113.182.223]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 9934263C6058; Tue, 12 Aug 2014 16:27:59 -0500 (CDT) Message-ID: <53EA86DE.5060508@sandeen.net> Date: Tue, 12 Aug 2014 14:27:58 -0700 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster , "Carlos E. R." CC: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20140812165143.GB46654@bfoster.bfoster> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407878880 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8375 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/12/14, 9:51 AM, Brian Foster wrote: > On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > Content-ID: > > > El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: >>>> El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > >>>> but all of them are about 401M before compression. The upload will take >>>> long, my ADSL upload is 0.3M/s at most. > > > I have shared (view) on google drive a folder with the three files. Both > Brian Foster and Mark Tinguely should have got a link on the mail from me. > If somebody else wants access, just tell me. > > >> I see the same thing from repair that was in your repair output: > >> block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 > >> If I take a look at the btrees as is, I see "235:[12608397,10]" included >> in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb >> 0x2000781). If I skip the mount, zero the log and repair, everything >> seems Ok. I can allocate the remainder of available space and rm -rf >> everything in the fs without an error. > >> Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in >> the cntbt, which is clearly a duplicate entry. This is what repair >> detects and cleans up and seems to lead to the shutdown. E.g., if I >> mount and use the fs, I can hit an assert or failure just by attempting >> to allocate the rest of the space in the fs. If that is the state of the >> fs on disk, it's only a matter of time we explode due to allocating and >> freeing that range of space or possibly attempting to allocate that >> space twice. > >> Mark mentioned that he didn't see the superblock item in the log with >> regard to the freeze. I don't see that either... which perhaps suggests >> that this all happens during the wake-from-hibernate sequence..? My >> understanding is that we should freeze on hibernate, thus force >> everything out to the log, write an unmount record and then dirty the >> log with a superblock transaction. Therefore, that should be the only >> item in the log post-freeze. Here, we have various items in the log >> including several logged buffers that correspond to the cntbt block that >> ends up corrupted (daddr 0xf427c08). What freeze? look at hibernate(), nothing but a sync: /** * hibernate - Carry out system hibernation, including saving the image. */ int hibernate(void) { ... printk(KERN_INFO "PM: Syncing filesystems ... "); sys_sync(); printk("done.\n"); error = freeze_processes(); if (error) goto Exit; AFAIK there is no freeze call involved. -Eric From david@fromorbit.com Tue Aug 12 16:54:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 36F9F7F3F for ; Tue, 12 Aug 2014 16:54:01 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id F1DB38F8087 for ; Tue, 12 Aug 2014 14:54:00 -0700 (PDT) X-ASG-Debug-ID: 1407880438-04cbb0508ae7cf0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id KsvJUfBiz8zKhWnh for ; Tue, 12 Aug 2014 14:53:58 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AiwKAFSM6lN5LDJ8/2dsb2JhbABagw1SV65JAQEBAQEBBp5WgWWFawGBFhd3hAQBBTocIxAIAw4KCSUPBSUDIROIQcU4FxiFZIlQB4RMAQSVQ4Z1gViTJ4NuKy8 Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 13 Aug 2014 07:23:57 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHK0m-0002To-7X; Wed, 13 Aug 2014 07:53:44 +1000 Date: Wed, 13 Aug 2014 07:53:44 +1000 From: Dave Chinner To: Stephen Rothwell Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [GIT PULL] xfs: updates for 3.17-rc1 Message-ID: <20140812215344.GY20518@dastard> X-ASG-Orig-Subj: Re: [GIT PULL] xfs: updates for 3.17-rc1 References: <20140812125313.GX20518@dastard> <20140812235612.684a9af7@canb.auug.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140812235612.684a9af7@canb.auug.org.au> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407880438 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8376 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 12, 2014 at 11:56:12PM +1000, Stephen Rothwell wrote: > Hi Dave, > > On Tue, 12 Aug 2014 22:53:13 +1000 Dave Chinner wrote: > > > > FYI, this will be the last pull request I will send you from a tree > > on oss.sgi.com. I'm moving everything XFS related over to kernel.org > > so future pull requests should come from there. > > Please let me know when you have the new tree set up so I can change > where I fetch from. git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git for-next It should be identical to the xfs tree you are pulling from oss.sgi.com. Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Tue Aug 12 16:59:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 599F17F3F for ; Tue, 12 Aug 2014 16:59:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 097EC304032 for ; Tue, 12 Aug 2014 14:59:52 -0700 (PDT) X-ASG-Debug-ID: 1407880788-04bdf06ef8e7870001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id OShizzuljimRlDMY (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 12 Aug 2014 14:59:49 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7CLxkGm016380 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Aug 2014 17:59:46 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7CLxjYc008654; Tue, 12 Aug 2014 17:59:45 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E0AE412577C; Tue, 12 Aug 2014 17:59:43 -0400 (EDT) Date: Tue, 12 Aug 2014 17:59:43 -0400 From: Brian Foster To: Eric Sandeen Cc: "Carlos E. R." , XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140812215943.GA39704@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <53EA86DE.5060508@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <53EA86DE.5060508@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407880789 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 12, 2014 at 02:27:58PM -0700, Eric Sandeen wrote: > On 8/12/14, 9:51 AM, Brian Foster wrote: > > On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > > Content-ID: > > > > > > El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: > >>>> El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > > > >>>> but all of them are about 401M before compression. The upload will take > >>>> long, my ADSL upload is 0.3M/s at most. > > > > > > I have shared (view) on google drive a folder with the three files. Both > > Brian Foster and Mark Tinguely should have got a link on the mail from me. > > If somebody else wants access, just tell me. > > > > > >> I see the same thing from repair that was in your repair output: > > > >> block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 > > > >> If I take a look at the btrees as is, I see "235:[12608397,10]" included > >> in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb > >> 0x2000781). If I skip the mount, zero the log and repair, everything > >> seems Ok. I can allocate the remainder of available space and rm -rf > >> everything in the fs without an error. > > > >> Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in > >> the cntbt, which is clearly a duplicate entry. This is what repair > >> detects and cleans up and seems to lead to the shutdown. E.g., if I > >> mount and use the fs, I can hit an assert or failure just by attempting > >> to allocate the rest of the space in the fs. If that is the state of the > >> fs on disk, it's only a matter of time we explode due to allocating and > >> freeing that range of space or possibly attempting to allocate that > >> space twice. > > > >> Mark mentioned that he didn't see the superblock item in the log with > >> regard to the freeze. I don't see that either... which perhaps suggests > >> that this all happens during the wake-from-hibernate sequence..? My > >> understanding is that we should freeze on hibernate, thus force > >> everything out to the log, write an unmount record and then dirty the > >> log with a superblock transaction. Therefore, that should be the only > >> item in the log post-freeze. Here, we have various items in the log > >> including several logged buffers that correspond to the cntbt block that > >> ends up corrupted (daddr 0xf427c08). > > What freeze? look at hibernate(), nothing but a sync: > > /** > * hibernate - Carry out system hibernation, including saving the image. > */ > int hibernate(void) > { > ... > printk(KERN_INFO "PM: Syncing filesystems ... "); > sys_sync(); > printk("done.\n"); > > error = freeze_processes(); > if (error) > goto Exit; > > > AFAIK there is no freeze call involved. > Eep, not sure why I was thinking there was a freeze there. It appears not. I guess that explains why the log contains what it does. Thanks for pointing that out... Brian > -Eric > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Tue Aug 12 17:02:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6FA4F7F3F for ; Tue, 12 Aug 2014 17:02:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D5011AC002 for ; Tue, 12 Aug 2014 15:02:34 -0700 (PDT) X-ASG-Debug-ID: 1407880951-04cb6c4c95c9fe0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id LqqtgZ0kZr769WrR for ; Tue, 12 Aug 2014 15:02:32 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqQJAHqN6lN5LDJ8/2dsb2JhbABagw2BKa5JAQEBAQEHoDuFawGBFBd3hAQBBTIBIyMQCAMYCRoLDwUlAyETiEHFOhcYhWSGIYJeAQFPB4RMBYUDApczjAaIeYIWgVgrL4EP Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 13 Aug 2014 07:27:17 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHK41-0002Ue-1k; Wed, 13 Aug 2014 07:57:05 +1000 Date: Wed, 13 Aug 2014 07:57:05 +1000 From: Dave Chinner To: Eric Sandeen Cc: Brian Foster , "Carlos E. R." , XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140812215704.GZ20518@dastard> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <53EA86DE.5060508@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <53EA86DE.5060508@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407880951 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8376 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 12, 2014 at 02:27:58PM -0700, Eric Sandeen wrote: > On 8/12/14, 9:51 AM, Brian Foster wrote: > > On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > > Content-ID: > > > > > > El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: > >>>> El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > > > >>>> but all of them are about 401M before compression. The upload will take > >>>> long, my ADSL upload is 0.3M/s at most. > > > > > > I have shared (view) on google drive a folder with the three files. Both > > Brian Foster and Mark Tinguely should have got a link on the mail from me. > > If somebody else wants access, just tell me. > > > > > >> I see the same thing from repair that was in your repair output: > > > >> block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 > > > >> If I take a look at the btrees as is, I see "235:[12608397,10]" included > >> in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb > >> 0x2000781). If I skip the mount, zero the log and repair, everything > >> seems Ok. I can allocate the remainder of available space and rm -rf > >> everything in the fs without an error. > > > >> Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in > >> the cntbt, which is clearly a duplicate entry. This is what repair > >> detects and cleans up and seems to lead to the shutdown. E.g., if I > >> mount and use the fs, I can hit an assert or failure just by attempting > >> to allocate the rest of the space in the fs. If that is the state of the > >> fs on disk, it's only a matter of time we explode due to allocating and > >> freeing that range of space or possibly attempting to allocate that > >> space twice. > > > >> Mark mentioned that he didn't see the superblock item in the log with > >> regard to the freeze. I don't see that either... which perhaps suggests > >> that this all happens during the wake-from-hibernate sequence..? My > >> understanding is that we should freeze on hibernate, thus force > >> everything out to the log, write an unmount record and then dirty the > >> log with a superblock transaction. Therefore, that should be the only > >> item in the log post-freeze. Here, we have various items in the log > >> including several logged buffers that correspond to the cntbt block that > >> ends up corrupted (daddr 0xf427c08). > > What freeze? look at hibernate(), nothing but a sync: > > /** > * hibernate - Carry out system hibernation, including saving the image. > */ > int hibernate(void) > { > ... > printk(KERN_INFO "PM: Syncing filesystems ... "); > sys_sync(); > printk("done.\n"); > > error = freeze_processes(); > if (error) > goto Exit; > > > AFAIK there is no freeze call involved. Yes, that's a problem I've been pointing out for years. TuxOnIce freezes the filesystems, but the kernel hibernation maintainers have steadfastly refuses to even acknowledge that it is necessary. As it is, I'm pretty sure this is being caused by the XFS workqueues not being frozen appropriately i.e. WQ_FREEZEABLE needs to be added to various workqueue definitions so that work gets halted when kernel threads get halted. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Tue Aug 12 17:22:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5953B7F3F for ; Tue, 12 Aug 2014 17:22:03 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id EE32C8F8066 for ; Tue, 12 Aug 2014 15:22:02 -0700 (PDT) X-ASG-Debug-ID: 1407882120-04bdf06ef6e8520001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id HUYdieITyHKAe1Yt for ; Tue, 12 Aug 2014 15:22:00 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from Liberator-2.local (24-113-182-223.wavecable.com [24.113.182.223]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 921D563D71EC; Tue, 12 Aug 2014 17:21:59 -0500 (CDT) Message-ID: <53EA9386.2040207@sandeen.net> Date: Tue, 12 Aug 2014 15:21:58 -0700 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster CC: "Carlos E. R." , XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <53EA86DE.5060508@sandeen.net> <20140812215943.GA39704@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20140812215943.GA39704@bfoster.bfoster> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1407882120 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8377 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/12/14, 2:59 PM, Brian Foster wrote: > On Tue, Aug 12, 2014 at 02:27:58PM -0700, Eric Sandeen wrote: >> On 8/12/14, 9:51 AM, Brian Foster wrote: >>> On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: >>> Content-ID: >>> >>> >>> El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: >>>>>> El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: >>> >>>>>> but all of them are about 401M before compression. The upload will take >>>>>> long, my ADSL upload is 0.3M/s at most. >>> >>> >>> I have shared (view) on google drive a folder with the three files. Both >>> Brian Foster and Mark Tinguely should have got a link on the mail from me. >>> If somebody else wants access, just tell me. >>> >>> >>>> I see the same thing from repair that was in your repair output: >>> >>>> block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 >>> >>>> If I take a look at the btrees as is, I see "235:[12608397,10]" included >>>> in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb >>>> 0x2000781). If I skip the mount, zero the log and repair, everything >>>> seems Ok. I can allocate the remainder of available space and rm -rf >>>> everything in the fs without an error. >>> >>>> Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in >>>> the cntbt, which is clearly a duplicate entry. This is what repair >>>> detects and cleans up and seems to lead to the shutdown. E.g., if I >>>> mount and use the fs, I can hit an assert or failure just by attempting >>>> to allocate the rest of the space in the fs. If that is the state of the >>>> fs on disk, it's only a matter of time we explode due to allocating and >>>> freeing that range of space or possibly attempting to allocate that >>>> space twice. >>> >>>> Mark mentioned that he didn't see the superblock item in the log with >>>> regard to the freeze. I don't see that either... which perhaps suggests >>>> that this all happens during the wake-from-hibernate sequence..? My >>>> understanding is that we should freeze on hibernate, thus force >>>> everything out to the log, write an unmount record and then dirty the >>>> log with a superblock transaction. Therefore, that should be the only >>>> item in the log post-freeze. Here, we have various items in the log >>>> including several logged buffers that correspond to the cntbt block that >>>> ends up corrupted (daddr 0xf427c08). >> >> What freeze? look at hibernate(), nothing but a sync: >> >> /** >> * hibernate - Carry out system hibernation, including saving the image. >> */ >> int hibernate(void) >> { >> ... >> printk(KERN_INFO "PM: Syncing filesystems ... "); >> sys_sync(); >> printk("done.\n"); >> >> error = freeze_processes(); >> if (error) >> goto Exit; >> >> >> AFAIK there is no freeze call involved. >> > > Eep, not sure why I was thinking there was a freeze there. because it seems so logical. :) > It appears > not. I guess that explains why the log contains what it does. Thanks for > pointing that out... but as I was saying on IRC, I think in theory it's not necessary; the fs state on disk + fs state in memory (saved to disk during hibernate) needs to be consistent, and it's conceivable that this could be done without freeze (or even sync for that matter). A freeze sure sounds nice though, to be sure the fs really is consistent on disk, in case resume fails. The thing I was wondering about is what makes sure disk caches are flushed before disks lose power when hibernate completes. (I'm just handwaving here, though...) Anyway, Dave's mention of making threads freezable makes the most sense. Documentation/power/freezing-of-tasks.txt makes it pretty clear that any thread which might change fs state needs to be freezable: > We therefore freeze tasks that might > cause the on-disk filesystems' data and metadata to be modified after the > hibernation image has been created and before the system is finally powered off. > The majority of these are user space processes, but if any of the kernel threads > may cause something like this to happen, they have to be freezable. jbd/jbd2 explicitly handle this freezing in the kjournald/kjournald2 threads. -Eric > Brian > >> -Eric >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs > From sfr@canb.auug.org.au Tue Aug 12 17:59:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 0B6387F3F for ; Tue, 12 Aug 2014 17:59:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 93078AC002 for ; Tue, 12 Aug 2014 15:59:21 -0700 (PDT) X-ASG-Debug-ID: 1407884357-04bdf06ef9e9970001-NocioJ Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by cuda.sgi.com with ESMTP id xJnDXBTjJX7ghEFN (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 12 Aug 2014 15:59:19 -0700 (PDT) X-Barracuda-Envelope-From: sfr@canb.auug.org.au X-Barracuda-Apparent-Source-IP: 103.22.144.67 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPSA id AA8BF140097; Wed, 13 Aug 2014 08:59:16 +1000 (EST) Date: Wed, 13 Aug 2014 08:59:11 +1000 From: Stephen Rothwell To: Dave Chinner Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: [GIT PULL] xfs: updates for 3.17-rc1 Message-ID: <20140813085911.53e5fbd5@canb.auug.org.au> X-ASG-Orig-Subj: Re: [GIT PULL] xfs: updates for 3.17-rc1 In-Reply-To: <20140812215344.GY20518@dastard> References: <20140812125313.GX20518@dastard> <20140812235612.684a9af7@canb.auug.org.au> <20140812215344.GY20518@dastard> X-Mailer: Claws Mail 3.10.1 (GTK+ 2.24.24; i486-pc-linux-gnu) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/1YyK36QbUd5rdgnKeGq9nH6"; protocol="application/pgp-signature" X-Barracuda-Connect: ozlabs.org[103.22.144.67] X-Barracuda-Start-Time: 1407884358 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8378 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- --Sig_/1YyK36QbUd5rdgnKeGq9nH6 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Dave, On Wed, 13 Aug 2014 07:53:44 +1000 Dave Chinner wrote: > > On Tue, Aug 12, 2014 at 11:56:12PM +1000, Stephen Rothwell wrote: > >=20 > > On Tue, 12 Aug 2014 22:53:13 +1000 Dave Chinner w= rote: > > > > > > FYI, this will be the last pull request I will send you from a tree > > > on oss.sgi.com. I'm moving everything XFS related over to kernel.org > > > so future pull requests should come from there. > >=20 > > Please let me know when you have the new tree set up so I can change > > where I fetch from. >=20 > git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git for-next OK, I have switched starting today. > It should be identical to the xfs tree you are pulling from > oss.sgi.com. Yep, it is. --=20 Cheers, Stephen Rothwell sfr@canb.auug.org.au --Sig_/1YyK36QbUd5rdgnKeGq9nH6 Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJT6pxEAAoJEMDTa8Ir7ZwVAgYQAIc2j31HcOScP1IyQxqPxGTc ZhM/fjZplQVmi6aWu1QTNhVSsaxp3pAXMfFp2NgY8YqRBV4TqGeeAmhpajScoBA/ eB39G8lBliESfghGuz3hHTFFVJ0qgZPTJi1l/zf+BCwTZ/P8klKzoRKWPJQC+Sag drx6s4/C/UinjLg9QkD3bPE+KRWhh+GFaoaIOl82xYQlDsHNCkBl5ofFp8UDJecg Hu8zyVKVrFqYpT7tvVCf3YB5cFxu2rCeH3FjF+cX/K1eu1pV8iqq+HHmZks2Jni5 4hTMCluWrO1TVL0kfwBJRveoSUHK0gt0ZIq+RVH/TtH9fzsl8VW9wY29sr8SdDga 8Hs2wcLL5WFnomeInxL0Ouzm7FnMkVZi088K0tVnQGpIaLG0jBoAo1j1j3NMuqro 1iP+ehG8WrT/kGYIJhLwD+9DH/gzIDlrS8Q6DKiPLQL2w0pWhxFyhv5TqN+0QmCG yfkTe9PnmPzo+CTDiuYYR8lM/WtUw4UeMf4rxooUs5ygPApl7epl5UeuHwt8Mnjd PDCEZSHWYYfGFfyXH941bZOw3inlHJpNTptpjfZpZz8gnwaJPDx0GLa7eFLGXtOM mHlkXZosCFlBvzC0ialekR5nQUh9xMN6ScFUrzhHAMyreKCEhfdbXYy+MmGtHS3c WO5McYkEr2aw9c3K04yB =uxmt -----END PGP SIGNATURE----- --Sig_/1YyK36QbUd5rdgnKeGq9nH6-- From david@fromorbit.com Tue Aug 12 18:16:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4608F7F3F for ; Tue, 12 Aug 2014 18:16:50 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1211F8F8064 for ; Tue, 12 Aug 2014 16:16:46 -0700 (PDT) X-ASG-Debug-ID: 1407885403-04cbb0508deab80001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id qjJ8drq2FunUG3CI for ; Tue, 12 Aug 2014 16:16:44 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqQJAA6f6lN5LDJ8/2dsb2JhbABagw2BKa5LAQEBAQEHoDuFawGBERd3hAMBAQQBMgEjIwULCAMYCRoLDwUlAyETiDoHxRgXGIVkhiGCXgEBAU4Hgy+BHQWFAwKXM4wGiHmCFoFYKy+BDw Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 13 Aug 2014 08:46:42 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHLIr-0002fF-HA; Wed, 13 Aug 2014 09:16:29 +1000 Date: Wed, 13 Aug 2014 09:16:29 +1000 From: Dave Chinner To: Eric Sandeen Cc: Brian Foster , "Carlos E. R." , XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140812231629.GA20518@dastard> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <53EA86DE.5060508@sandeen.net> <20140812215943.GA39704@bfoster.bfoster> <53EA9386.2040207@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <53EA9386.2040207@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407885403 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8378 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 12, 2014 at 03:21:58PM -0700, Eric Sandeen wrote: > On 8/12/14, 2:59 PM, Brian Foster wrote: > > On Tue, Aug 12, 2014 at 02:27:58PM -0700, Eric Sandeen wrote: > >> On 8/12/14, 9:51 AM, Brian Foster wrote: > >>> On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > >>> Content-ID: > >>> > >>> > >>> El 2014-08-12 a las 00:36 +0200, Carlos E. R. escribió: > >>>>>> El 2014-08-11 a las 16:56 -0500, Mark Tinguely escribió: > >>> > >>>>>> but all of them are about 401M before compression. The upload will take > >>>>>> long, my ADSL upload is 0.3M/s at most. > >>> > >>> > >>> I have shared (view) on google drive a folder with the three files. Both > >>> Brian Foster and Mark Tinguely should have got a link on the mail from me. > >>> If somebody else wants access, just tell me. > >>> > >>> > >>>> I see the same thing from repair that was in your repair output: > >>> > >>>> block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 > >>> > >>>> If I take a look at the btrees as is, I see "235:[12608397,10]" included > >>>> in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb > >>>> 0x2000781). If I skip the mount, zero the log and repair, everything > >>>> seems Ok. I can allocate the remainder of available space and rm -rf > >>>> everything in the fs without an error. > >>> > >>>> Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in > >>>> the cntbt, which is clearly a duplicate entry. This is what repair > >>>> detects and cleans up and seems to lead to the shutdown. E.g., if I > >>>> mount and use the fs, I can hit an assert or failure just by attempting > >>>> to allocate the rest of the space in the fs. If that is the state of the > >>>> fs on disk, it's only a matter of time we explode due to allocating and > >>>> freeing that range of space or possibly attempting to allocate that > >>>> space twice. > >>> > >>>> Mark mentioned that he didn't see the superblock item in the log with > >>>> regard to the freeze. I don't see that either... which perhaps suggests > >>>> that this all happens during the wake-from-hibernate sequence..? My > >>>> understanding is that we should freeze on hibernate, thus force > >>>> everything out to the log, write an unmount record and then dirty the > >>>> log with a superblock transaction. Therefore, that should be the only > >>>> item in the log post-freeze. Here, we have various items in the log > >>>> including several logged buffers that correspond to the cntbt block that > >>>> ends up corrupted (daddr 0xf427c08). > >> > >> What freeze? look at hibernate(), nothing but a sync: > >> > >> /** > >> * hibernate - Carry out system hibernation, including saving the image. > >> */ > >> int hibernate(void) > >> { > >> ... > >> printk(KERN_INFO "PM: Syncing filesystems ... "); > >> sys_sync(); > >> printk("done.\n"); > >> > >> error = freeze_processes(); > >> if (error) > >> goto Exit; > >> > >> > >> AFAIK there is no freeze call involved. > >> > > > > Eep, not sure why I was thinking there was a freeze there. > > because it seems so logical. :) > > > It appears > > not. I guess that explains why the log contains what it does. Thanks for > > pointing that out... > > but as I was saying on IRC, I think in theory it's not necessary; the fs state > on disk + fs state in memory (saved to disk during hibernate) needs to be > consistent, and it's conceivable that this could be done without freeze > (or even sync for that matter). Well, the sync is necessary for hibernate - it needs to shrink the amount of memory that is saved to disk to as small as possible. If your memory is full of dirty page cache, why would you save that to the hibernate image, only to have to load it back off, then write it to the filesystem after resume? Why wouldn't you write it straight to disk before hibernation, then remove it from memory so you've then got free memory to allocate the hibernation image that gets written to disk? > A freeze sure sounds nice though, to be sure the fs really is consistent > on disk, in case resume fails. > > The thing I was wondering about is what makes sure disk caches are flushed > before disks lose power when hibernate completes. (I'm just handwaving > here, though...) That usually happens in the driver power-down sequence. > Anyway, Dave's mention of making threads freezable makes the most sense. > Documentation/power/freezing-of-tasks.txt > makes it pretty clear that any thread which might change fs state > needs to be freezable: > > > We therefore freeze tasks that might > > cause the on-disk filesystems' data and metadata to be modified after the > > hibernation image has been created and before the system is finally powered off. > > The majority of these are user space processes, but if any of the kernel threads > > may cause something like this to happen, they have to be freezable. > > jbd/jbd2 explicitly handle this freezing in the kjournald/kjournald2 threads. As we do for the xfsaild kernel thread. We used to use kernel threads for functionality that we now use workqueues for - the xfssyncd and the xfsbufd - and those kernel threads used to also freeze like the xfsaild does. We lost that when moving to workqueues. The stupid part about all this is we actually stop periodic workqueue processing for workqueues that can modify state when the filesystem freezes. i.e. if the hibernation code froze the filesystem we wouldn't need to mark workqueues as freezable because XFS already manages everything in the manner than hibernation requires.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 12 18:56:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 009557F3F for ; Tue, 12 Aug 2014 18:56:39 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E52BB304032 for ; Tue, 12 Aug 2014 16:56:35 -0700 (PDT) X-ASG-Debug-ID: 1407887789-04cbb0508aebed0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id iVAm15EnsfmmIbfy for ; Tue, 12 Aug 2014 16:56:30 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlYKAH6o6lN5LDJ8/2dsb2JhbABRCYMNUleuTQEBAQEBAQaYFAeGRYFbhWsBgRAXd4QEAQUnExwjEAgDGAklDwUlAyETiEEOxQwXGIVkiHVbB4MvgR0FhQMCkD6GdZR/g24rL4EIJA Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 13 Aug 2014 09:26:29 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHLvL-0002jd-EW; Wed, 13 Aug 2014 09:56:15 +1000 Date: Wed, 13 Aug 2014 09:56:15 +1000 From: Dave Chinner To: Alex Lyakas Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140812235615.GB20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407887789 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8381 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > Hello Dave, Brian, > I will describe a generic reproduction that you ask for. > > It was performed on pristine XFS code from 3.8.13, taken from here: > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git .... > I mounted XFS with the following options: > rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 > > I started a couple of processes writing files sequentially onto this > mount point, and after few seconds crashed the VM. > When the VM came up, I took the metadump file and placed it in: > https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing > > Then I set up the following Device Mapper target onto /dev/vde: > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > I am attaching the code (and Makefile) of dm-linear-custom target. > It is exact copy of dm-linear, except that it has a module > parameter. With the parameter set to 0, this is an identity mapping > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > failed with ENOSPC. There is a workqueue to fail them in a different > context (not sure if really needed, but that's what our "real" > custom > block device does). Well, they you go. That explains it - an asynchronous dispatch error happening fast enough to race with the synchronous XFS dispatch processing. dispatch thread device workqueue xfs_buf_hold(); atomic_set(b_io_remaining, 1) atomic_inc(b_io_remaining) submit_bio(bio) queue_work(bio) xfs_buf_ioend(bp, ....); atomic_dec(b_io_remaining) xfs_buf_rele() bio error set to ENOSPC bio->end_io() xfs_buf_bio_endio() bp->b_error = ENOSPC _xfs_buf_ioend(bp, 1); atomic_dec(b_io_remaining) xfs_buf_ioend(bp, 1); queue_work(bp) xfs_buf_iowait() if (bp->b_error) return error; if (error) xfs_buf_relse() xfs_buf_rele() xfs_buf_free() And now we have a freed buffer that is queued on the io completion queue. Basically, it requires the buffer error to be set asynchronously *between* the dispatch decrementing it's I/O count after dispatch, but before we wait on the IO. Not sure what the right fix is yet - removing the bp->b_error check from xfs_buf_iowait() doesn't solve the problem - it just prevents this code path from being tripped over by the race condition. But, just to validate this is the problem, you should be able to reproduce this on a 3.16 kernel. Can you try that, Alex? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 12 19:03:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C62A47F3F for ; Tue, 12 Aug 2014 19:03:45 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id A5390304032 for ; Tue, 12 Aug 2014 17:03:42 -0700 (PDT) X-ASG-Debug-ID: 1407888219-04bdf06ef8eb7c0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id nVhjC05lrA2cfbxZ for ; Tue, 12 Aug 2014 17:03:39 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlMKANqq6lN5LDJ8/2dsb2JhbABRCYMNgSmuTQEBAQEBAQaYFAeIIIVrAYEQF3eEBAEFOhwjEAgDGAklDwUlAyETiEHFHxcYhWSIdVsHgy+BHQWcOJR/g24rLw Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 13 Aug 2014 09:33:25 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHM24-0002lO-CT; Wed, 13 Aug 2014 10:03:12 +1000 Date: Wed, 13 Aug 2014 10:03:12 +1000 From: Dave Chinner To: Alex Lyakas Cc: Brian Foster , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140813000312.GC20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1407888219 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8381 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > Then I set up the following Device Mapper target onto /dev/vde: > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > I am attaching the code (and Makefile) of dm-linear-custom target. > It is exact copy of dm-linear, except that it has a module > parameter. With the parameter set to 0, this is an identity mapping > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > failed with ENOSPC. There is a workqueue to fail them in a different > context (not sure if really needed, but that's what our "real" > custom > block device does). FWIW, now I've looked at the dm module, this could easily be added to the dm-flakey driver by adding a "queue_write_error" option to it (i.e. similar to the current drop_writes and corrupt_bio_byte options). If we add the code there, then we could add a debug-only XFS sysfs variable to trigger the log recovery sleep, and then use dm-flakey to queue and error out writes. That gives us a reproducable xfstest for this condition. Brian, does that sound like a reasonable plan to you? Thanks for describing the method you've been using to reproduce the bug so clearly, Alex. Cheers, Dave. -- Dave Chinner david@fromorbit.com From robin.listas@gmail.com Tue Aug 12 19:08:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CD3367F3F for ; Tue, 12 Aug 2014 19:08:05 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4A08CAC007 for ; Tue, 12 Aug 2014 17:08:02 -0700 (PDT) X-ASG-Debug-ID: 1407888474-04cbb0508aec510001-NocioJ Received: from mail-wg0-f44.google.com (mail-wg0-f44.google.com [74.125.82.44]) by cuda.sgi.com with ESMTP id n3MDDVGAQyFZLuEa (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 12 Aug 2014 17:07:55 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.44 Received: by mail-wg0-f44.google.com with SMTP id m15so10544151wgh.15 for ; Tue, 12 Aug 2014 17:07:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=5/B382C3+YRXXqvAPj8UJ1fs+Eg9stOaBVRvlcd0CJU=; b=ZM0pQTt7Fe2hIU/BuqpuQQ/yAD0JjDaGSX1RUbkbihkBppTlAzXzJIMLXxM7vnfzZR y20AYjDgaPw9CvlzUZbSuBwyDqLD9kSdrj+JmGbd3CNjSjo6/hBJbRLpNw1upLRtzYkI MpMqOg+TjRiljunVunWaTfihZoHyu607gT7ZzlXLaUwhmCXCffsRBO1c4iOBMYvevQBh DmzmkIuHotW1wsBn/wyRPUj6cd09ZkEH8KaSIVSOimf58qgy+LxRUSOfZ86P8uYTF3ot wkv35qrt48R2b5noumepj8x+/f8HGrITMdGohXYyBJPAiL4Sf4AMTNqehL2V1tCYhLqt Zofg== X-Received: by 10.194.23.135 with SMTP id m7mr1004130wjf.2.1407888474717; Tue, 12 Aug 2014 17:07:54 -0700 (PDT) Received: from Telcontar.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id x11sm547652wjr.15.2014.08.12.17.07.53 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 12 Aug 2014 17:07:53 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id EC2E960682 for ; Wed, 13 Aug 2014 02:07:51 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id lS4UXv62XUU9 for ; Wed, 13 Aug 2014 02:07:51 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id C6CD1605B8 for ; Wed, 13 Aug 2014 02:07:51 +0200 (CEST) Date: Wed, 13 Aug 2014 02:07:42 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@Telcontar.valinor To: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. In-Reply-To: <20140812231629.GA20518@dastard> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: References: <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <53EA86DE.5060508@sandeen.net> <20140812215943.GA39704@bfoster.bfoster> <53EA9386.2040207@sandeen.net> <20140812231629.GA20518@dastard> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Barracuda-Connect: mail-wg0-f44.google.com[74.125.82.44] X-Barracuda-Start-Time: 1407888475 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8381 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday, 2014-08-13 at 09:16 +1000, Dave Chinner wrote: ... > Well, the sync is necessary for hibernate - it needs to shrink the > amount of memory that is saved to disk to as small as possible. If > your memory is full of dirty page cache, why would you save that to > the hibernate image, only to have to load it back off, then write it > to the filesystem after resume? Why wouldn't you write it straight > to disk before hibernation, then remove it from memory so you've > then got free memory to allocate the hibernation image that gets > written to disk? You can see that this happens by looking at the output of "free" before and after hibernation. Even issuing the command after getting the desktop back, I can see a big difference (the ammount of buffers and cache). - -- Cheers, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlPqrFcACgkQtTMYHG2NR9VfIgCgj3AXArngfCdoK/bGDsHNNWWU pgoAnRJK7GMHRbO9KCV2TKYnlSYWMolT =MtMr -----END PGP SIGNATURE----- From hawk@tbi.univie.ac.at Wed Aug 13 04:42:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4F9177F3F for ; Wed, 13 Aug 2014 04:42:33 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 098AC8F8074 for ; Wed, 13 Aug 2014 02:42:29 -0700 (PDT) X-ASG-Debug-ID: 1407922946-04bdf06ef71002e0001-NocioJ Received: from mescalin.tbi.univie.ac.at (mescalin.tbi.univie.ac.at [131.130.44.61]) by cuda.sgi.com with ESMTP id Bv7fHOpIy5suhGax (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 02:42:27 -0700 (PDT) X-Barracuda-Envelope-From: hawk@tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.61 Received: from denobula.tbi.univie.ac.at ([131.130.44.65]:42797) by mescalin.tbi.univie.ac.at with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1XHV4c-0004N8-A4 for xfs@oss.sgi.com; Wed, 13 Aug 2014 11:42:26 +0200 Message-ID: <53EB3302.1090000@tbi.univie.ac.at> Date: Wed, 13 Aug 2014 11:42:26 +0200 From: Richard Neuboeck User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: File System Corruption - Internal error xfs_dir3_data_reada_verify Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OgiujWGRgACxmDpNj1g6pLCq7sCfhs5ti" X-ASG-Orig-Subj: File System Corruption - Internal error xfs_dir3_data_reada_verify X-Barracuda-Connect: mescalin.tbi.univie.ac.at[131.130.44.61] X-Barracuda-Start-Time: 1407922947 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8393 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --OgiujWGRgACxmDpNj1g6pLCq7sCfhs5ti Content-Type: multipart/mixed; boundary="------------040508060702070407000707" This is a multi-part message in MIME format. --------------040508060702070407000707 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi, for some time now our storage machine using XFS stops the file system due to some reason I don't seem to have found so far. In this process the file system gets corrupted and the attached trace log is shown. After xfs_repair is run it's running again for an always changing amount of time. In general it fails within a few hours or days. There are no relevant log messages before the entries shown below and no immediate actions that lead to this condition. So far my experiments (Ubuntu upgrade from 10.04 to 14.04, different kernel versions, changes to the hypervisor) didn't show any lasting effects (positive or negative). If any one could shed some light on what XFS is trying to tell me it would be highly appreciated. I've found the mention of 'xfs_dir3_data_reada_verify' in the mailing list but didn't find a solution that was applicable. Thanks in advance Richard Operating System: Ubuntu 14.04 x86_64 Kernel: 3.13.0-32-generic Machine: Virtual, gets an LVM device (/dev/vdb) The system hosting the virtual machine is Ubuntu lucid (10.04LTS) x86_64. There are no log messages related to this incident on this machine. --=20 /dev/null --------------040508060702070407000707 Content-Type: text/plain; charset=UTF-8; name="xfs_trace.log" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="xfs_trace.log" Aug 13 10:11:16 huddle kernel: [ 5247.325984] ffff880113855000: 20 73 63 = 6f 70 65 2e 52 65 73 65 74 48 69 73 74 scope.ResetHist Aug 13 10:11:16 huddle kernel: [ 5247.326066] ffff880113855010: 6f 72 79 = 28 29 3b 0a 20 20 20 20 20 20 20 20 20 ory();. =20 Aug 13 10:11:16 huddle kernel: [ 5247.326107] ffff880113855020: 20 20 20 = 20 20 20 20 68 61 6e 64 6c 65 2e 52 65 handle.Re Aug 13 10:11:16 huddle kernel: [ 5247.326147] ffff880113855030: 73 65 74 = 28 29 3b 0a 20 20 20 20 20 20 20 20 20 set();. =20 Aug 13 10:11:16 huddle kernel: [ 5247.326196] XFS (vdb): Internal error x= fs_dir3_data_reada_verify at line 258 of file /build/buildd/linux-3.13.0/= fs/xfs/xfs_dir2_data.c. Caller 0xffffffffa006b6c5 Aug 13 10:11:16 huddle kernel: [ 5247.326276] CPU: 0 PID: 341 Comm: kwork= er/0:1H Not tainted 3.13.0-32-generic #57-Ubuntu Aug 13 10:11:16 huddle kernel: [ 5247.326278] Hardware name: Bochs Bochs,= BIOS Bochs 01/01/2007 Aug 13 10:11:16 huddle kernel: [ 5247.326352] Workqueue: xfslogd xfs_buf_= iodone_work [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326357] 0000000000000001 ffff88021= 1f97d88 ffffffff8171bcb4 ffff8802125bd000 Aug 13 10:11:16 huddle kernel: [ 5247.326361] ffff880211f97da0 ffffffffa= 006e53b ffffffffa006b6c5 ffff880211f97dd8 Aug 13 10:11:16 huddle kernel: [ 5247.326363] ffffffffa006e595 000001021= 1f97dc8 ffff880101aa8000 ffff880101aa8000 Aug 13 10:11:16 huddle kernel: [ 5247.326365] Call Trace: Aug 13 10:11:16 huddle kernel: [ 5247.326373] [] dump_= stack+0x45/0x56 Aug 13 10:11:16 huddle kernel: [ 5247.326385] [] xfs_e= rror_report+0x3b/0x40 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326395] [] ? xfs= _buf_iodone_work+0x85/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326406] [] xfs_c= orruption_error+0x55/0x80 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326442] [] xfs_d= ir3_data_reada_verify+0x62/0xc0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326451] [] ? xfs= _buf_iodone_work+0x85/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326460] [] xfs_b= uf_iodone_work+0x85/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.326465] [] proce= ss_one_work+0x182/0x450 Aug 13 10:11:16 huddle kernel: [ 5247.326478] [] worke= r_thread+0x121/0x410 Aug 13 10:11:16 huddle kernel: [ 5247.326481] [] ? res= cuer_thread+0x430/0x430 Aug 13 10:11:16 huddle kernel: [ 5247.326484] [] kthre= ad+0xd2/0xf0 Aug 13 10:11:16 huddle kernel: [ 5247.326486] [] ? kth= read_create_on_node+0x1d0/0x1d0 Aug 13 10:11:16 huddle kernel: [ 5247.326490] [] ret_f= rom_fork+0x7c/0xb0 Aug 13 10:11:16 huddle kernel: [ 5247.326492] [] ? kth= read_create_on_node+0x1d0/0x1d0 Aug 13 10:11:16 huddle kernel: [ 5247.326494] XFS (vdb): Corruption detec= ted. Unmount and run xfs_repair Aug 13 10:11:16 huddle kernel: [ 5247.326532] XFS (vdb): metadata I/O err= or: block 0x160003e488 ("xfs_trans_read_buf_map") error 117 numblks 8 Aug 13 10:11:16 huddle kernel: [ 5247.326789] ffff880113855000: 20 73 63 = 6f 70 65 2e 52 65 73 65 74 48 69 73 74 scope.ResetHist Aug 13 10:11:16 huddle kernel: [ 5247.326831] ffff880113855010: 6f 72 79 = 28 29 3b 0a 20 20 20 20 20 20 20 20 20 ory();. =20 Aug 13 10:11:16 huddle kernel: [ 5247.326870] ffff880113855020: 20 20 20 = 20 20 20 20 68 61 6e 64 6c 65 2e 52 65 handle.Re Aug 13 10:11:16 huddle kernel: [ 5247.326909] ffff880113855030: 73 65 74 = 28 29 3b 0a 20 20 20 20 20 20 20 20 20 set();. =20 Aug 13 10:11:16 huddle kernel: [ 5247.326949] XFS (vdb): Internal error x= fs_dir3_data_read_verify at line 274 of file /build/buildd/linux-3.13.0/f= s/xfs/xfs_dir2_data.c. Caller 0xffffffffa006b6c5 Aug 13 10:11:16 huddle kernel: [ 5247.327029] CPU: 0 PID: 341 Comm: kwork= er/0:1H Not tainted 3.13.0-32-generic #57-Ubuntu Aug 13 10:11:16 huddle kernel: [ 5247.327031] Hardware name: Bochs Bochs,= BIOS Bochs 01/01/2007 Aug 13 10:11:16 huddle kernel: [ 5247.327042] Workqueue: xfslogd xfs_buf_= iodone_work [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327044] 0000000000000001 ffff88021= 1f97d68 ffffffff8171bcb4 ffff8802125bd000 Aug 13 10:11:16 huddle kernel: [ 5247.327045] ffff880211f97d80 ffffffffa= 006e53b ffffffffa006b6c5 ffff880211f97db8 Aug 13 10:11:16 huddle kernel: [ 5247.327047] ffffffffa006e595 000001121= 1f97db0 ffff880036ab1300 ffff8802125bd000 Aug 13 10:11:16 huddle kernel: [ 5247.327049] Call Trace: Aug 13 10:11:16 huddle kernel: [ 5247.327052] [] dump_= stack+0x45/0x56 Aug 13 10:11:16 huddle kernel: [ 5247.327061] [] xfs_e= rror_report+0x3b/0x40 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327070] [] ? xfs= _buf_iodone_work+0x85/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327079] [] xfs_c= orruption_error+0x55/0x80 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327092] [] xfs_d= ir3_data_read_verify+0x6d/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327101] [] ? xfs= _buf_iodone_work+0x85/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327104] [] ? fin= ish_task_switch+0x128/0x170 Aug 13 10:11:16 huddle kernel: [ 5247.327113] [] xfs_b= uf_iodone_work+0x85/0xf0 [xfs] Aug 13 10:11:16 huddle kernel: [ 5247.327115] [] proce= ss_one_work+0x182/0x450 Aug 13 10:11:16 huddle kernel: [ 5247.327117] [] worke= r_thread+0x121/0x410 Aug 13 10:11:16 huddle kernel: [ 5247.327119] [] ? res= cuer_thread+0x430/0x430 Aug 13 10:11:16 huddle kernel: [ 5247.327121] [] kthre= ad+0xd2/0xf0 Aug 13 10:11:16 huddle kernel: [ 5247.327122] [] ? kth= read_create_on_node+0x1d0/0x1d0 Aug 13 10:11:16 huddle kernel: [ 5247.327124] [] ret_f= rom_fork+0x7c/0xb0 Aug 13 10:11:16 huddle kernel: [ 5247.327126] [] ? kth= read_create_on_node+0x1d0/0x1d0 Aug 13 10:11:16 huddle kernel: [ 5247.327127] XFS (vdb): Corruption detec= ted. Unmount and run xfs_repair Aug 13 10:11:16 huddle kernel: [ 5247.327164] XFS (vdb): metadata I/O err= or: block 0x160003e488 ("xfs_trans_read_buf_map") error 117 numblks 8 Aug 13 10:11:21 huddle kernel: [ 5252.482540] XFS: Internal error XFS_WAN= T_CORRUPTED_GOTO at line 1602 of file /build/buildd/linux-3.13.0/fs/xfs/x= fs_alloc.c. Caller 0xffffffffa0088485 Aug 13 10:11:21 huddle kernel: [ 5252.482644] CPU: 0 PID: 2167 Comm: rm N= ot tainted 3.13.0-32-generic #57-Ubuntu Aug 13 10:11:21 huddle kernel: [ 5252.482646] Hardware name: Bochs Bochs,= BIOS Bochs 01/01/2007 Aug 13 10:11:21 huddle kernel: [ 5252.482648] 0000000000fef248 ffff88010= d125b88 ffffffff8171bcb4 0000000000000004 Aug 13 10:11:21 huddle kernel: [ 5252.482651] ffff88010d125ba0 ffffffffa= 006e53b ffffffffa0088485 ffff88010d125c38 Aug 13 10:11:21 huddle kernel: [ 5252.482653] ffffffffa0086f19 ffff88021= 25bd000 ffff880033fff780 ffff880211f9b9c0 Aug 13 10:11:21 huddle kernel: [ 5252.482655] Call Trace: Aug 13 10:11:21 huddle kernel: [ 5252.482664] [] dump_= stack+0x45/0x56 Aug 13 10:11:21 huddle kernel: [ 5252.482694] [] xfs_e= rror_report+0x3b/0x40 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482706] [] ? xfs= _free_extent+0xc5/0xf0 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482718] [] xfs_f= ree_ag_extent+0x1e9/0x710 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482730] [] xfs_f= ree_extent+0xc5/0xf0 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482748] [] xfs_b= map_finish+0x13f/0x190 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482766] [] xfs_i= truncate_extents+0x16d/0x2a0 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482781] [] xfs_i= nactive_truncate+0x8d/0x120 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482812] [] xfs_i= nactive+0x138/0x160 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482844] [] xfs_f= s_evict_inode+0x80/0xc0 [xfs] Aug 13 10:11:21 huddle kernel: [ 5252.482848] [] evict= +0xb0/0x1b0 Aug 13 10:11:21 huddle kernel: [ 5252.482850] [] iput+= 0xf5/0x180 Aug 13 10:11:21 huddle kernel: [ 5252.482852] [] do_un= linkat+0x18e/0x2b0 Aug 13 10:11:21 huddle kernel: [ 5252.482857] [] ? sys= call_trace_enter+0x145/0x250 Aug 13 10:11:21 huddle kernel: [ 5252.482859] [] SyS_u= nlinkat+0x1b/0x40 Aug 13 10:11:21 huddle kernel: [ 5252.482863] [] trace= sys+0xe1/0xe6 Aug 13 10:11:21 huddle kernel: [ 5252.482872] XFS (vdb): xfs_do_force_shu= tdown(0x8) called from line 138 of file /build/buildd/linux-3.13.0/fs/xfs= /xfs_bmap_util.c. Return address =3D 0xffffffffa0068118 Aug 13 10:11:21 huddle kernel: [ 5252.483790] XFS (vdb): Corruption of in= -memory data detected. Shutting down filesystem Aug 13 10:11:21 huddle kernel: [ 5252.483830] XFS (vdb): Please umount th= e filesystem and rectify the problem(s) --------------040508060702070407000707-- --OgiujWGRgACxmDpNj1g6pLCq7sCfhs5ti Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlPrMwIACgkQnGohgOrO9GG9eACfTUkJVdEERdE5uq8Ffc4bsYIZ imIAnA8AZu1dRRuEqNelIQ+7CoGAVyMc =NS9s -----END PGP SIGNATURE----- --OgiujWGRgACxmDpNj1g6pLCq7sCfhs5ti-- From webmaster@dev104.magizz.com Wed Aug 13 04:54:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0D8E67F3F for ; Wed, 13 Aug 2014 04:54:12 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id D46428F8071 for ; Wed, 13 Aug 2014 02:54:11 -0700 (PDT) X-ASG-Debug-ID: 1407923649-04cb6c4c94e1430001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id us6XRJ473Z1uwG5g (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 02:54:09 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev104.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev104.magizz.com; s=default; h=Content-Type:MIME-Version:List-Owner:List-Subscribe:List-Unsubscribe:List-Help:Message-ID:Reply-To:From:Date:Subject:To; bh=z92DInjIb25P0yXPZO9nAjaIFyyBExE9UVmk1qGh2P8=; b=v36+f5A/hXXxfXBCe7ojIaOLirV1CP+FyChwIYw+kRIqW9UCgwZkWfThYcUiMFyi1lB6VVmcysLmlptGIMOhaaaVLHJGwgODb7PYq3V6rdRI9/BeCwa1c4Vg/pajmYk2qIms+aucj2bLNpg+np1OnG5wL1K6vRCpdcqz4ZOWFzY=; Received: from dev104magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XHVFz-00067z-UU for xfs@oss.sgi.com; Wed, 13 Aug 2014 13:54:11 +0400 To: xfs@oss.sgi.com Subject: An Unbelievable Offer for You - Bag Your Luck Now X-PHP-Script: dev104.magizz.com/mailz/admin/index.php for 122.170.50.201 X-ASG-Orig-Subj: An Unbelievable Offer for You - Bag Your Luck Now Received: from abts-mum-dynamic-201.50.170.122.airtelbroadband.in [122.170.50.201] by dev104.magizz.com with HTTP; Wed, 13 Aug 2014 08:58:08 +0000 Date: Wed, 13 Aug 2014 09:54:11 +0000 From: Good Luck! 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=0Aamj --b1_18bda152c075385963d851396b6855be-- From david@fromorbit.com Wed Aug 13 05:43:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6BA967F3F for ; Wed, 13 Aug 2014 05:43:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3163B304043 for ; Wed, 13 Aug 2014 03:43:02 -0700 (PDT) X-ASG-Debug-ID: 1407926577-04bdf06ef7101dd0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 0U13QX5PIkJaRezC for ; Wed, 13 Aug 2014 03:42:58 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aj8KAFRA61N5LDJ8PGdsb2JhbABAGg6Cf1JXgiqLJKByAQEBAQEBBp5UDIdGAYESFwUBAQEBODaEAwEBAQMBAQEBNxwYCwULCAMOCgklDwUTEgMHGhMbiB8HDjbFQRiFZIdAgUdEBQeETAWPCoY5hnWMBowTVCsvAYEG Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 13 Aug 2014 20:12:56 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHW19-0004G5-Do; Wed, 13 Aug 2014 20:42:55 +1000 Date: Wed, 13 Aug 2014 20:42:55 +1000 From: Dave Chinner To: Richard Neuboeck Cc: xfs@oss.sgi.com Subject: Re: File System Corruption - Internal error xfs_dir3_data_reada_verify Message-ID: <20140813104255.GO26465@dastard> X-ASG-Orig-Subj: Re: File System Corruption - Internal error xfs_dir3_data_reada_verify References: <53EB3302.1090000@tbi.univie.ac.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53EB3302.1090000@tbi.univie.ac.at> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407926578 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8395 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Wed, Aug 13, 2014 at 11:42:26AM +0200, Richard Neuboeck wrote: > Hi, > > for some time now our storage machine using XFS stops the file > system due to some reason I don't seem to have found so far. In this > process the file system gets corrupted and the attached trace log is > shown. What's the workload the VM runs? > After xfs_repair is run it's running again for an always > changing amount of time. What errors does xfs_repair correct? Can you post the output of a repair run that corrects the issue. > In general it fails within a few hours or > days. There are no relevant log messages before the entries shown > below and no immediate actions that lead to this condition. So far > my experiments (Ubuntu upgrade from 10.04 to 14.04, different kernel > versions, changes to the hypervisor) didn't show any lasting effects > (positive or negative). If any one could shed some light on what XFS > is trying to tell me it would be highly appreciated. The directory is trying to read a block of data that does not contain directory data. i.e. the directory has somehow been corrupted. The block contains file data, but that's about all I can tell you right now. > I've found the mention of 'xfs_dir3_data_reada_verify' in the > mailing list but didn't find a solution that was applicable. It's just checking the block read from disk. However, that's not the only error that is occurring: > [ 5247.327164] XFS (vdb): metadata I/O error: block 0x160003e488 ("xfs_trans_read_buf_map") error 117 numblks 8 > [ 5252.482540] XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file /build/buildd/linux-3.13.0/fs/xfs/xfs_alloc.c. Caller 0xffffffffa0088485 There are corrupted free space btrees. In this case, the by-bno tree has been found to be inconsistent. So there's something corrupting more than just the directory. SO, more information needed. Lets start with: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F and the output of xfs_repair. Also, a metadump image of the filesystem before you run repair would be helpful. And finally, the configuration of the block devices the VM is using (i.e. virtio, cache=?, etc). Describing the physical storage the VM is using might also be helpful - it could be host based corruption, not guest based corruption that is occurring... Cheers, Dave. > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Wed Aug 13 07:05:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9F3157F3F for ; Wed, 13 Aug 2014 07:05:00 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 830E3304043 for ; Wed, 13 Aug 2014 05:04:57 -0700 (PDT) X-ASG-Debug-ID: 1407931495-04cbb0508d1031f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id OPd6fsXIzV9ON1xb (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 05:04:56 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7DC4qx3012371 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Aug 2014 08:04:52 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7DC4qqn014216; Wed, 13 Aug 2014 08:04:52 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 4B1EE12577C; Wed, 13 Aug 2014 08:04:51 -0400 (EDT) Date: Wed, 13 Aug 2014 08:04:51 -0400 From: Brian Foster To: "Carlos E. R." Cc: XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140813120450.GA3569@bfoster.bfoster> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407931496 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 12, 2014 at 11:17:36PM +0200, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > > On Tuesday, 2014-08-12 at 12:51 -0400, Brian Foster wrote: > >On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: > > >I see the same thing from repair that was in your repair output: > > > >block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 > > Is it possible to find out what file uses that block? > I have a non-obfuscated copy of the metadata. Knowing the file, we can know > what application is involved - and that might help, or perhaps not. > I don't see how given the current situation. The space appears to be free initially, so zeroing the log contents on repair puts the fs in a state where the space is not allocated to any particular file. Perhaps there is some incremental state created by the log that can provide this information (e.g., space is free, space is preallocated, extent is converted, eofblocks are trimmed all in a single checkpoint), but that could be difficult to trace back since iirc the btree had grown as well. > > >If I take a look at the btrees as is, I see "235:[12608397,10]" included > >in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb > >0x2000781). If I skip the mount, zero the log and repair, everything > >seems Ok. I can allocate the remainder of available space and rm -rf > >everything in the fs without an error. > > > >Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in > >the cntbt, which is clearly a duplicate entry. This is what repair > >detects and cleans up and seems to lead to the shutdown. E.g., if I > >mount and use the fs, I can hit an assert or failure just by attempting > >to allocate the rest of the space in the fs. If that is the state of the > >fs on disk, it's only a matter of time we explode due to allocating and > >freeing that range of space or possibly attempting to allocate that > >space twice. > > I'm not sure if I follow you. > > The sequence of events here is: > > a) hibernate > b) thaw > c) immediately, in memory corruption found and kernel error message. > Filesystem is switched to read only. > System is unstable, has to be halted or rebooted. > Umount is impossible. > Ok, so the crash is fairly immediate after the wake (also according to the log output below). > d) (¬) Reboot > e) Mount (¬), manual umount, xfs_repair (¬), mount > (photos of metadata taken at the appropriate points (marked with ¬)) > > > This the point I'm at now. Are you saying that the filesystem can explode at > any time now? I have not written any files, beyond what the desktop does > automatically. > No, the filesystem has been fixed by repair. I'm just saying that somehow the fs creates a duplicate free space record in one of the free space trees. That particular condition means it's only a matter of time before some block allocation operation trips up on that inconsistent state and shuts down the fs. You happen to hit it immediately due to that space being involved with speculative preallocation. The current theory is that this is probably due to XFS workqueues not being freezable, and therefore can make changes on disk after the dump image is created. This seems logical to me, but I'd still like to see some kind of verification of the potential fix if possible. I can repeat some vm hibernate testing with that in mind. Alternatively, would you have the ability to test a patch? Have you been able to reproduce this again since the most recent instance? Brian > > > What I have not done (on your request), this time, is: > > f) backup, format, restore. > > > > > >Mark mentioned that he didn't see the superblock item in the log with > >regard to the freeze. I don't see that either... which perhaps suggests > >that this all happens during the wake-from-hibernate sequence..? My > >understanding is that we should freeze on hibernate, thus force > >everything out to the log, write an unmount record and then dirty the > >log with a superblock transaction. Therefore, that should be the only > >item in the log post-freeze. Here, we have various items in the log > >including several logged buffers that correspond to the cntbt block that > >ends up corrupted (daddr 0xf427c08). > > > >Given the failure occurs on freeing an extent via the xfs_eofblocks > >scanner, perhaps this extent was initially allocated as speculative > >preallocation and the eofblocks scanner is where we happen to first > >identify the corrupted cntbt. What is strange is that, as mentioned > >previously, the space appears to be free if I zero the log, so that > >means it was probably free before the freeze. It seems highly unlikely > >for a file to gain preallocation, be written out and then get trimmed by > >the scanner all on wake-from-hibernate. > > > Well, I understand little of that, but if you do, and can do whatever > modifications need to be done to the code, that's fine with me :-) > > > > >Carlos, > > > >How long after hibernate does the shutdown/crash typically occur? Do you > >basically wake-up and within a few seconds the filesystem crashes, or is > >it some time (minutes) later? > > Instantly during the wake-up (thaw), according to the log. > > I'm typically not present when it happens: my routine is switch on the > computer, then go make coffee/tea, and then return and start using the > machine. It takes a minute or two to wake up from hibernation, and then the > machine is sluggish for a minute or two more while processes start doing > things and claiming chunks from swap, mail is fetched, etc. > > And instead of starting work, I find the machine in a bad state. > > > Look, an excerpt from the last event (the full log is in another post > yesterday), but taken from another log file with finer grained timestaps: > > > <30>1 2014-08-11T05:22:25.861413+02:00 Telcontar ntp 5867 - - Shutting down network time protocol daemon (NTPD)..done > <30>1 2014-08-11T05:22:25.917520+02:00 Telcontar systemd 1 - - Stopped LSB: Network time protocol daemon (ntpd). > <28>1 2014-08-11T05:22:25.977431+02:00 Telcontar pm-utils - - - Hibernating (95)... > <7>1 2014-08-11T05:22:30.605714+02:00 Telcontar kernel - - - [73220.857511] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] > <7>1 2014-08-11T05:22:30.605728+02:00 Telcontar kernel - - - [73220.857516] PM: Marking nosave pages: [mem 0xbff90000-0xffffffff] > <7>1 2014-08-11T05:22:30.605729+02:00 Telcontar kernel - - - [73220.858132] PM: Basic memory bitmaps created > <4>1 2014-08-11T15:17:18.911655+02:00 Telcontar kernel - - - [73221.946553] Syncing filesystems ... done. > <4>1 2014-08-11T15:17:18.911744+02:00 Telcontar kernel - - - [73222.682396] Freezing user space processes ... (elapsed 0.002 seconds) done. > <6>1 2014-08-11T15:17:18.911746+02:00 Telcontar kernel - - - [73222.685031] PM: Preallocating image memory... done (allocated 1140745 pages) > > > The "Hibernating (95)" is written by a script of mine in > "/etc/pm/sleep.d/95cosas" which main purpose is to write to the log that > line. > > Then the machine wakes up, hours later - despite the timestamp not saying so > (the time jump is written instead lines above): > > > <6>1 2014-08-11T15:17:18.911768+02:00 Telcontar kernel - - - [73228.307358] CPU3 is up > <6>1 2014-08-11T15:17:18.911769+02:00 Telcontar kernel - - - [73228.335219] PM: noirq restore of devices complete after 22.779 msecs > <6>1 2014-08-11T15:17:18.911770+02:00 Telcontar kernel - - - [73228.335354] PM: early restore of devices complete after 0.110 msecs > <7>1 2014-08-11T15:17:18.911771+02:00 Telcontar kernel - - - [73228.508789] uhci_hcd 0000:00:1a.0: setting latency timer to 64 > <4>1 2014-08-11T15:17:18.911771+02:00 Telcontar kernel - - - [73228.508809] usb usb3: root hub lost power or was reset > > ... > > > <6>1 2014-08-11T15:17:18.911838+02:00 Telcontar kernel - - - [73230.798419] r8169 0000:06:00.0 eth0: link up > <6>1 2014-08-11T15:17:18.911839+02:00 Telcontar kernel - - - [73231.245103] PM: restore of devices complete after 2736.365 msecs > <4>1 2014-08-11T15:17:18.911839+02:00 Telcontar kernel - - - [73231.514298] Restarting kernel threads ... done. > <4>1 2014-08-11T15:17:18.911842+02:00 Telcontar kernel - - - [73231.518736] Restarting tasks ... done. > <7>1 2014-08-11T15:17:18.911843+02:00 Telcontar kernel - - - [73231.562307] PM: Basic memory bitmaps freed > <28>1 2014-08-11T15:17:19.946945+02:00 Telcontar rtkit-daemon 4535 - - The canary thread is apparently starving. Taking action. > <30>1 2014-08-11T15:17:19.947259+02:00 Telcontar rtkit-daemon 4535 - - Demoting known real-time threads. > <29>1 2014-08-11T15:17:19.951276+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4541 of process 4534 (/usr/bin/pulseaudio). > <29>1 2014-08-11T15:17:19.951546+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4540 of process 4534 (/usr/bin/pulseaudio). > <29>1 2014-08-11T15:17:19.951799+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4534 of process 4534 (/usr/bin/pulseaudio). > <29>1 2014-08-11T15:17:19.952033+02:00 Telcontar rtkit-daemon 4535 - - Demoted 3 threads. > <20>1 2014-08-11T15:17:20.808125+02:00 Telcontar dovecot - - - imap: Warning: Time jumped forwards 33996 seconds > <20>1 2014-08-11T15:17:20.840771+02:00 Telcontar dovecot - - - imap: Warning: Time jumped forwards 35660 seconds > <22>1 2014-08-11T15:17:20.841006+02:00 Telcontar dovecot - - - imap(cer): Disconnected for inactivity in=237010 out=9273919 > <1>1 2014-08-11T15:17:22.173611+02:00 Telcontar kernel - - - [73235.439809] XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.10/linux-3.11/fs/xfs/xfs_alloc.c. Caller 0xffffffffa0c39fe9 > <1>1 2014-08-11T15:17:22.173625+02:00 Telcontar kernel - - - [73235.439809] > > > ... > > > <5>1 2014-08-11T15:17:22.174493+02:00 Telcontar kernel - - - [73235.440751] XFS (sdd5): xfs_do_force_shutdown(0x8) called from line 916 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.10/linux-3.11/fs/xfs/xfs_bmap.c. Return address = 0xffffffffa0c4c3d8 > <1>1 2014-08-11T15:17:22.232589+02:00 Telcontar kernel - - - [73235.498979] XFS (sdd5): Corruption of in-memory data detected. Shutting down filesystem > <1>1 2014-08-11T15:17:22.232594+02:00 Telcontar kernel - - - [73235.499136] XFS (sdd5): Please umount the filesystem and rectify the problem(s) > <30>1 2014-08-11T15:17:22.716184+02:00 Telcontar systemd 1 - - Time has been changed > <30>1 2014-08-11T15:17:27.171188+02:00 Telcontar acpid - - - 1 client rule loaded > <28>1 2014-08-11T15:17:29.413944+02:00 Telcontar pm-utils - - - Thawing (95)... > <29>1 2014-08-11T15:17:30.048264+02:00 Telcontar dbus 1020 - - [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper) > <30>1 2014-08-11T15:17:30.833496+02:00 Telcontar systemd 1 - - Starting LSB: Network time protocol daemon (ntpd)... > <4>1 2014-08-11T15:17:30.990470+02:00 Telcontar kernel - - - [73244.256012] XFS (sdd5): xfs_log_force: error 5 returned. > <29>1 2014-08-11T15:17:31.324585+02:00 Telcontar dbus 1020 - - [system] Activated service 'org.freedesktop.PackageKit' failed: Cannot launch daemon, file not found or permissions invalid > > > As you see, the corruption is detected instantly after waking up, before > pm-utils scripts have a chance to run. > > > > > >If the former, I wonder if it's possible that the scanner returns to > >life pointing to a stale or freed incore inode and does something bogus > >based on that. > > > Well, as I said, that's above my understanding ;-) > > > > - -- Cheers, > Carlos E. R. > (from 13.1 x86_64 "Bottle" at Telcontar) > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2.0.22 (GNU/Linux) > > iEYEARECAAYFAlPqhHwACgkQtTMYHG2NR9WmrwCglBRRHEMgU9mCEHkU9iHqYehX > +1AAn2oUn8/M3Rfb7mLWapLqYxDfvHNv > =9Yft > -----END PGP SIGNATURE----- > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Wed Aug 13 07:59:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4EA4F7F3F for ; Wed, 13 Aug 2014 07:59:38 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C6309AC002 for ; Wed, 13 Aug 2014 05:59:37 -0700 (PDT) X-ASG-Debug-ID: 1407934775-04cbb0508a106100001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id JwG1jfDcZmL7kmIX (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 05:59:36 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7DCxYGZ024926 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Aug 2014 08:59:34 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7DCxXU2015903; Wed, 13 Aug 2014 08:59:33 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A73C112577C; Wed, 13 Aug 2014 08:59:32 -0400 (EDT) Date: Wed, 13 Aug 2014 08:59:32 -0400 From: Brian Foster To: Dave Chinner Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140813125932.GA4605@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140812235615.GB20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407934776 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 13, 2014 at 09:56:15AM +1000, Dave Chinner wrote: > On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > > Hello Dave, Brian, > > I will describe a generic reproduction that you ask for. > > > > It was performed on pristine XFS code from 3.8.13, taken from here: > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git > .... > > I mounted XFS with the following options: > > rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 > > > > I started a couple of processes writing files sequentially onto this > > mount point, and after few seconds crashed the VM. > > When the VM came up, I took the metadump file and placed it in: > > https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing > > > > Then I set up the following Device Mapper target onto /dev/vde: > > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > > I am attaching the code (and Makefile) of dm-linear-custom target. > > It is exact copy of dm-linear, except that it has a module > > parameter. With the parameter set to 0, this is an identity mapping > > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > > failed with ENOSPC. There is a workqueue to fail them in a different > > context (not sure if really needed, but that's what our "real" > > custom > > block device does). > > Well, they you go. That explains it - an asynchronous dispatch error > happening fast enough to race with the synchronous XFS dispatch > processing. > > dispatch thread device workqueue > xfs_buf_hold(); > atomic_set(b_io_remaining, 1) > atomic_inc(b_io_remaining) > submit_bio(bio) > queue_work(bio) > xfs_buf_ioend(bp, ....); > atomic_dec(b_io_remaining) > xfs_buf_rele() > bio error set to ENOSPC > bio->end_io() > xfs_buf_bio_endio() > bp->b_error = ENOSPC > _xfs_buf_ioend(bp, 1); > atomic_dec(b_io_remaining) > xfs_buf_ioend(bp, 1); > queue_work(bp) > xfs_buf_iowait() > if (bp->b_error) return error; > if (error) > xfs_buf_relse() > xfs_buf_rele() > xfs_buf_free() > > And now we have a freed buffer that is queued on the io completion > queue. Basically, it requires the buffer error to be set > asynchronously *between* the dispatch decrementing it's I/O count > after dispatch, but before we wait on the IO. > That's basically the theory I wanted to test with the experimental patch. E.g., the error check races with the iodone workqueue item. > Not sure what the right fix is yet - removing the bp->b_error check > from xfs_buf_iowait() doesn't solve the problem - it just prevents > this code path from being tripped over by the race condition. > Perhaps I'm missing some context... I don't follow how removing the error check doesn't solve the problem. It clearly closes the race and perhaps there are other means of doing the same thing, but what part of the problem does that leave unresolved? E.g., we provide a synchronization mechanism for an async submission path and an object (xfs_buf) that is involved with potentially multiple such async (I/O) operations. The async callback side manages the counts of outstanding bios etc. to set the state of the buf object correctly and fires a completion when everything is done. The calling side simply waits on the completion before it can analyze state of the object. Referring to anything inside that object that happens to be managed by the buffer I/O mechanism before the buffer is considered complete just seems generally racy. It looks like submit_bio() manages this by providing the error through the callback (always). It also doesn't look like submission path is guaranteed to be synchronous either (consider md, which appears to use workqueues and kernel threads)), so I'm not sure that '...; xfs_buf_iorequest(bp); if (bp->b_error)' is really safe anywhere unless you're explicitly looking for a write verifier error or something and do nothing further on the buf contingent on completion (e.g., freeing it or something it depends on). Brian > But, just to validate this is the problem, you should be able to > reproduce this on a 3.16 kernel. Can you try that, Alex? > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From bfoster@redhat.com Wed Aug 13 08:11:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 283FC7F47 for ; Wed, 13 Aug 2014 08:11:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id F1F25304043 for ; Wed, 13 Aug 2014 06:11:46 -0700 (PDT) X-ASG-Debug-ID: 1407935505-04bdf06ef8107c10001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id H3vxisK7GGzaWWIo (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 06:11:45 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7DDBhqk031274 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Aug 2014 09:11:43 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7DDBhZJ024650; Wed, 13 Aug 2014 09:11:43 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 7176F12577C; Wed, 13 Aug 2014 09:11:42 -0400 (EDT) Date: Wed, 13 Aug 2014 09:11:42 -0400 From: Brian Foster To: Dave Chinner Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140813131142.GB4605@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140813000312.GC20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140813000312.GC20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407935505 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 13, 2014 at 10:03:12AM +1000, Dave Chinner wrote: > On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > > Then I set up the following Device Mapper target onto /dev/vde: > > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > > I am attaching the code (and Makefile) of dm-linear-custom target. > > It is exact copy of dm-linear, except that it has a module > > parameter. With the parameter set to 0, this is an identity mapping > > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > > failed with ENOSPC. There is a workqueue to fail them in a different > > context (not sure if really needed, but that's what our "real" > > custom > > block device does). > > FWIW, now I've looked at the dm module, this could easily be added > to the dm-flakey driver by adding a "queue_write_error" option > to it (i.e. similar to the current drop_writes and corrupt_bio_byte > options). > > If we add the code there, then we could add a debug-only XFS sysfs > variable to trigger the log recovery sleep, and then use dm-flakey > to queue and error out writes. That gives us a reproducable xfstest > for this condition. Brian, does that sound like a reasonable plan to > you? > It would be nice if we could avoid this kind of timing hack, but I'll have to look at the related code and see what we have for options. I'm also assuming the oops/crash is a consistent behavior when we hit the race, since that probably defines the failure mode of the test. But yeah, seems like a reasonable plan in general. Added to the todo list for once we have this sorted out... Brian > Thanks for describing the method you've been using to reproduce the > bug so clearly, Alex. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From tinguely@sgi.com Wed Aug 13 08:29:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0176C7F3F for ; Wed, 13 Aug 2014 08:29:43 -0500 (CDT) Received: from dhcp-128-162-232-117.americas.sgi.com (dhcp-128-162-232-117.americas.sgi.com [128.162.232.117]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8FDE3304032; Wed, 13 Aug 2014 06:29:41 -0700 (PDT) Message-ID: <53EB6845.70804@sgi.com> Date: Wed, 13 Aug 2014 08:29:41 -0500 From: Mark Tinguely User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0 MIME-Version: 1.0 To: Brian Foster CC: "Carlos E. R." , XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <20140813120450.GA3569@bfoster.bfoster> In-Reply-To: <20140813120450.GA3569@bfoster.bfoster> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit On 08/13/14 07:04, Brian Foster wrote: > On Tue, Aug 12, 2014 at 11:17:36PM +0200, Carlos E. R. wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> >> >> On Tuesday, 2014-08-12 at 12:51 -0400, Brian Foster wrote: >>> On Tue, Aug 12, 2014 at 02:17:00AM +0200, Carlos E. R. wrote: >> >>> I see the same thing from repair that was in your repair output: >>> >>> block (1,12608397-12608397) multiply claimed by cnt space tree, state - 2 >> >> Is it possible to find out what file uses that block? >> I have a non-obfuscated copy of the metadata. Knowing the file, we can know >> what application is involved - and that might help, or perhaps not. >> > > I don't see how given the current situation. The space appears to be > free initially, so zeroing the log contents on repair puts the fs in a > state where the space is not allocated to any particular file. Perhaps > there is some incremental state created by the log that can provide this > information (e.g., space is free, space is preallocated, extent is > converted, eofblocks are trimmed all in a single checkpoint), but that > could be difficult to trace back since iirc the btree had grown as well. > >> >>> If I take a look at the btrees as is, I see "235:[12608397,10]" included >>> in the bnobt (fsb 0x200aa55) and "270:[12608397,10]" in the cntbt (fsb >>> 0x2000781). If I skip the mount, zero the log and repair, everything >>> seems Ok. I can allocate the remainder of available space and rm -rf >>> everything in the fs without an error. >>> >>> Once I replay the log, I see "272:[12608397,10] 273:[12608397,10]" in >>> the cntbt, which is clearly a duplicate entry. This is what repair >>> detects and cleans up and seems to lead to the shutdown. E.g., if I >>> mount and use the fs, I can hit an assert or failure just by attempting >>> to allocate the rest of the space in the fs. If that is the state of the >>> fs on disk, it's only a matter of time we explode due to allocating and >>> freeing that range of space or possibly attempting to allocate that >>> space twice. >> >> I'm not sure if I follow you. >> >> The sequence of events here is: >> >> a) hibernate >> b) thaw >> c) immediately, in memory corruption found and kernel error message. >> Filesystem is switched to read only. >> System is unstable, has to be halted or rebooted. >> Umount is impossible. >> > > Ok, so the crash is fairly immediate after the wake (also according to > the log output below). > >> d) (¬) Reboot >> e) Mount (¬), manual umount, xfs_repair (¬), mount >> (photos of metadata taken at the appropriate points (marked with ¬)) >> >> >> This the point I'm at now. Are you saying that the filesystem can explode at >> any time now? I have not written any files, beyond what the desktop does >> automatically. >> > > No, the filesystem has been fixed by repair. I'm just saying that > somehow the fs creates a duplicate free space record in one of the free > space trees. That particular condition means it's only a matter of time > before some block allocation operation trips up on that inconsistent > state and shuts down the fs. You happen to hit it immediately due to > that space being involved with speculative preallocation. > > The current theory is that this is probably due to XFS workqueues not > being freezable, and therefore can make changes on disk after the dump > image is created. This seems logical to me, but I'd still like to see > some kind of verification of the potential fix if possible. I can repeat > some vm hibernate testing with that in mind. Alternatively, would you > have the ability to test a patch? Have you been able to reproduce this > again since the most recent instance? > > Brian I am still digging through the xfs log: I do not see anything in that extent range 46162829-46162839 being freed in the log. (or anything close to it). Late in the log, there is a write (op 27 of tid e9f15120) of a big portion of the interested AG1 cnt btree. So we know that it is good at that point. The the next two writes (op 66 of tid 6ed362ea and op 25 of tid 6281c8b) that write entry "8d63c000 a000000" to that block are the beginning of the 16 byte log write. Depending on the offset, it is possible that one of these writes could insert a duplicate entry. I will chase it further and see where and why this duplicate happens from a log perspective. --Mark. >> >> >> What I have not done (on your request), this time, is: >> >> f) backup, format, restore. >> >> >> >> >>> Mark mentioned that he didn't see the superblock item in the log with >>> regard to the freeze. I don't see that either... which perhaps suggests >>> that this all happens during the wake-from-hibernate sequence..? My >>> understanding is that we should freeze on hibernate, thus force >>> everything out to the log, write an unmount record and then dirty the >>> log with a superblock transaction. Therefore, that should be the only >>> item in the log post-freeze. Here, we have various items in the log >>> including several logged buffers that correspond to the cntbt block that >>> ends up corrupted (daddr 0xf427c08). >>> >>> Given the failure occurs on freeing an extent via the xfs_eofblocks >>> scanner, perhaps this extent was initially allocated as speculative >>> preallocation and the eofblocks scanner is where we happen to first >>> identify the corrupted cntbt. What is strange is that, as mentioned >>> previously, the space appears to be free if I zero the log, so that >>> means it was probably free before the freeze. It seems highly unlikely >>> for a file to gain preallocation, be written out and then get trimmed by >>> the scanner all on wake-from-hibernate. >> >> >> Well, I understand little of that, but if you do, and can do whatever >> modifications need to be done to the code, that's fine with me :-) >> >> >> >>> Carlos, >>> >>> How long after hibernate does the shutdown/crash typically occur? Do you >>> basically wake-up and within a few seconds the filesystem crashes, or is >>> it some time (minutes) later? >> >> Instantly during the wake-up (thaw), according to the log. >> >> I'm typically not present when it happens: my routine is switch on the >> computer, then go make coffee/tea, and then return and start using the >> machine. It takes a minute or two to wake up from hibernation, and then the >> machine is sluggish for a minute or two more while processes start doing >> things and claiming chunks from swap, mail is fetched, etc. >> >> And instead of starting work, I find the machine in a bad state. >> >> >> Look, an excerpt from the last event (the full log is in another post >> yesterday), but taken from another log file with finer grained timestaps: >> >> >> <30>1 2014-08-11T05:22:25.861413+02:00 Telcontar ntp 5867 - - Shutting down network time protocol daemon (NTPD)..done >> <30>1 2014-08-11T05:22:25.917520+02:00 Telcontar systemd 1 - - Stopped LSB: Network time protocol daemon (ntpd). >> <28>1 2014-08-11T05:22:25.977431+02:00 Telcontar pm-utils - - - Hibernating (95)... >> <7>1 2014-08-11T05:22:30.605714+02:00 Telcontar kernel - - - [73220.857511] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] >> <7>1 2014-08-11T05:22:30.605728+02:00 Telcontar kernel - - - [73220.857516] PM: Marking nosave pages: [mem 0xbff90000-0xffffffff] >> <7>1 2014-08-11T05:22:30.605729+02:00 Telcontar kernel - - - [73220.858132] PM: Basic memory bitmaps created >> <4>1 2014-08-11T15:17:18.911655+02:00 Telcontar kernel - - - [73221.946553] Syncing filesystems ... done. >> <4>1 2014-08-11T15:17:18.911744+02:00 Telcontar kernel - - - [73222.682396] Freezing user space processes ... (elapsed 0.002 seconds) done. >> <6>1 2014-08-11T15:17:18.911746+02:00 Telcontar kernel - - - [73222.685031] PM: Preallocating image memory... done (allocated 1140745 pages) >> >> >> The "Hibernating (95)" is written by a script of mine in >> "/etc/pm/sleep.d/95cosas" which main purpose is to write to the log that >> line. >> >> Then the machine wakes up, hours later - despite the timestamp not saying so >> (the time jump is written instead lines above): >> >> >> <6>1 2014-08-11T15:17:18.911768+02:00 Telcontar kernel - - - [73228.307358] CPU3 is up >> <6>1 2014-08-11T15:17:18.911769+02:00 Telcontar kernel - - - [73228.335219] PM: noirq restore of devices complete after 22.779 msecs >> <6>1 2014-08-11T15:17:18.911770+02:00 Telcontar kernel - - - [73228.335354] PM: early restore of devices complete after 0.110 msecs >> <7>1 2014-08-11T15:17:18.911771+02:00 Telcontar kernel - - - [73228.508789] uhci_hcd 0000:00:1a.0: setting latency timer to 64 >> <4>1 2014-08-11T15:17:18.911771+02:00 Telcontar kernel - - - [73228.508809] usb usb3: root hub lost power or was reset >> >> ... >> >> >> <6>1 2014-08-11T15:17:18.911838+02:00 Telcontar kernel - - - [73230.798419] r8169 0000:06:00.0 eth0: link up >> <6>1 2014-08-11T15:17:18.911839+02:00 Telcontar kernel - - - [73231.245103] PM: restore of devices complete after 2736.365 msecs >> <4>1 2014-08-11T15:17:18.911839+02:00 Telcontar kernel - - - [73231.514298] Restarting kernel threads ... done. >> <4>1 2014-08-11T15:17:18.911842+02:00 Telcontar kernel - - - [73231.518736] Restarting tasks ... done. >> <7>1 2014-08-11T15:17:18.911843+02:00 Telcontar kernel - - - [73231.562307] PM: Basic memory bitmaps freed >> <28>1 2014-08-11T15:17:19.946945+02:00 Telcontar rtkit-daemon 4535 - - The canary thread is apparently starving. Taking action. >> <30>1 2014-08-11T15:17:19.947259+02:00 Telcontar rtkit-daemon 4535 - - Demoting known real-time threads. >> <29>1 2014-08-11T15:17:19.951276+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4541 of process 4534 (/usr/bin/pulseaudio). >> <29>1 2014-08-11T15:17:19.951546+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4540 of process 4534 (/usr/bin/pulseaudio). >> <29>1 2014-08-11T15:17:19.951799+02:00 Telcontar rtkit-daemon 4535 - - Successfully demoted thread 4534 of process 4534 (/usr/bin/pulseaudio). >> <29>1 2014-08-11T15:17:19.952033+02:00 Telcontar rtkit-daemon 4535 - - Demoted 3 threads. >> <20>1 2014-08-11T15:17:20.808125+02:00 Telcontar dovecot - - - imap: Warning: Time jumped forwards 33996 seconds >> <20>1 2014-08-11T15:17:20.840771+02:00 Telcontar dovecot - - - imap: Warning: Time jumped forwards 35660 seconds >> <22>1 2014-08-11T15:17:20.841006+02:00 Telcontar dovecot - - - imap(cer): Disconnected for inactivity in=237010 out=9273919 >> <1>1 2014-08-11T15:17:22.173611+02:00 Telcontar kernel - - - [73235.439809] XFS: Internal error XFS_WANT_CORRUPTED_GOTO at line 1602 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.10/linux-3.11/fs/xfs/xfs_alloc.c. Caller 0xffffffffa0c39fe9 >> <1>1 2014-08-11T15:17:22.173625+02:00 Telcontar kernel - - - [73235.439809] >> >> >> ... >> >> >> <5>1 2014-08-11T15:17:22.174493+02:00 Telcontar kernel - - - [73235.440751] XFS (sdd5): xfs_do_force_shutdown(0x8) called from line 916 of file /home/abuild/rpmbuild/BUILD/kernel-desktop-3.11.10/linux-3.11/fs/xfs/xfs_bmap.c. Return address = 0xffffffffa0c4c3d8 >> <1>1 2014-08-11T15:17:22.232589+02:00 Telcontar kernel - - - [73235.498979] XFS (sdd5): Corruption of in-memory data detected. Shutting down filesystem >> <1>1 2014-08-11T15:17:22.232594+02:00 Telcontar kernel - - - [73235.499136] XFS (sdd5): Please umount the filesystem and rectify the problem(s) >> <30>1 2014-08-11T15:17:22.716184+02:00 Telcontar systemd 1 - - Time has been changed >> <30>1 2014-08-11T15:17:27.171188+02:00 Telcontar acpid - - - 1 client rule loaded >> <28>1 2014-08-11T15:17:29.413944+02:00 Telcontar pm-utils - - - Thawing (95)... >> <29>1 2014-08-11T15:17:30.048264+02:00 Telcontar dbus 1020 - - [system] Activating service name='org.freedesktop.PackageKit' (using servicehelper) >> <30>1 2014-08-11T15:17:30.833496+02:00 Telcontar systemd 1 - - Starting LSB: Network time protocol daemon (ntpd)... >> <4>1 2014-08-11T15:17:30.990470+02:00 Telcontar kernel - - - [73244.256012] XFS (sdd5): xfs_log_force: error 5 returned. >> <29>1 2014-08-11T15:17:31.324585+02:00 Telcontar dbus 1020 - - [system] Activated service 'org.freedesktop.PackageKit' failed: Cannot launch daemon, file not found or permissions invalid >> >> >> As you see, the corruption is detected instantly after waking up, before >> pm-utils scripts have a chance to run. >> >> >> >> >>> If the former, I wonder if it's possible that the scanner returns to >>> life pointing to a stale or freed incore inode and does something bogus >>> based on that. >> >> >> Well, as I said, that's above my understanding ;-) >> >> >> >> - -- Cheers, >> Carlos E. R. >> (from 13.1 x86_64 "Bottle" at Telcontar) >> -----BEGIN PGP SIGNATURE----- >> Version: GnuPG v2.0.22 (GNU/Linux) >> >> iEYEARECAAYFAlPqhHwACgkQtTMYHG2NR9WmrwCglBRRHEMgU9mCEHkU9iHqYehX >> +1AAn2oUn8/M3Rfb7mLWapLqYxDfvHNv >> =9Yft >> -----END PGP SIGNATURE----- > >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Wed Aug 13 10:42:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id EB5B27F3F for ; Wed, 13 Aug 2014 10:42:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 63042AC002 for ; Wed, 13 Aug 2014 08:42:36 -0700 (PDT) X-ASG-Debug-ID: 1407944552-04cb6c4c96ef970001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id fVSuM75zJIBihFat (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 08:42:33 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7DFgWbu006640 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 13 Aug 2014 11:42:32 -0400 Received: from laptop.bfoster (vpn-55-52.rdu2.redhat.com [10.10.55.52]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7DFgULb001792 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 13 Aug 2014 11:42:31 -0400 Date: Wed, 13 Aug 2014 11:42:29 -0400 From: Brian Foster To: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Message-ID: <20140813154229.GB4426@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> <1407523766-62233-3-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1407523766-62233-3-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407944552 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 08, 2014 at 02:49:26PM -0400, Brian Foster wrote: > A file collapse stress test workload reproduces collapse failures > mid-operation due to changes in the inode fork extent count across > extent shift cycles. xfs_collapse_file_space() currently calls > xfs_bmap_shift_extents() to shift one extent at a time per transaction. > The extent index is used to track the next extent to shift after each > iteration. > > A concurrent fsx and fsstress workload reproduces a scenario where the > extent count changes during this sequence, causing the 'current_ext' > index to become inaccurate and possibly skip shifting an extent. The > likely result of this behavior is the subsequent shift attempt will not > find a hole in the area of the skipped extent and fail, leaving the file > in a partially collapsed state. > > This occurs because the ilock is released and acquired across each > transaction and each individual extent shift. Tracepoint output shows > that once the ilock is released after an extent shift, a pending > blocking writeback (e.g., sync) can acquire the lock and proceed before > the next extent is shifted down. If the writeback converts part of a > delayed allocation earlier in the file, for example, it can insert a new > extent into the map. Tracing confirms a call to > xfs_bmap_add_extent_delay_real() in this particular instance. > > To prevent this scenario, hold the ilock across the entire extent shift > loop in xfs_collapse_file_space(). > > Signed-off-by: Brian Foster > --- > fs/xfs/xfs_bmap_util.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 2f1e30d..96eb97b 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1474,6 +1474,8 @@ xfs_collapse_file_space( > if (error) > return error; > > + xfs_ilock(ip, XFS_ILOCK_EXCL); > + I realized this moves the lock outside of the xfs_trans_reserve(), thus opening a potential deadlock scenario with regard to the log. I suppose this might be harder to hit in real life than a sync() causing the operation to fall over mid-sequence, so I'm still Ok with keeping this unless anybody objects. That said, we might still have to do something else here longer term... perhaps sync the whole file and revert to the original locking, or retain this locking scheme and use a rolling transaction. Anyways, food for thought.. Brian > while (!error && !done) { > tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); > /* > @@ -1489,7 +1491,6 @@ xfs_collapse_file_space( > break; > } > > - xfs_ilock(ip, XFS_ILOCK_EXCL); > error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot, > ip->i_gdquot, ip->i_pdquot, > XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, > @@ -1517,9 +1518,9 @@ xfs_collapse_file_space( > goto out; > > error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); > - xfs_iunlock(ip, XFS_ILOCK_EXCL); > } > > + xfs_iunlock(ip, XFS_ILOCK_EXCL); > return error; > > out: > -- > 1.8.3.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From alex@zadarastorage.com Wed Aug 13 12:08:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7CDAE7F3F for ; Wed, 13 Aug 2014 12:08:05 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 104C5AC002 for ; Wed, 13 Aug 2014 10:08:01 -0700 (PDT) X-ASG-Debug-ID: 1407949677-04bdf06ef7116590001-NocioJ Received: from mail-wi0-f180.google.com (mail-wi0-f180.google.com [209.85.212.180]) by cuda.sgi.com with ESMTP id fKyPC9QyekedLuS2 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 13 Aug 2014 10:07:58 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.180 Received: by mail-wi0-f180.google.com with SMTP id n3so1119862wiv.7 for ; Wed, 13 Aug 2014 10:07:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:from:to:cc:references:in-reply-to :subject:date:mime-version:content-type:content-transfer-encoding :importance; bh=VVFNJHuPXmM7+I3M/rXACARtepevRsLh4HyjX5v30P4=; b=e9r1IK1S9904kp4uLldJ50Vjjpnmjp1Nkj7OdHr7z5kI/8TXE9kQaFU0sZVLkzZB+7 jEuUoqyrVjCJW1O+nHypVNE5XcwNsqN6DRQ3QbFzDbmY5CisrgFb6uX/ISz+pkdMfJDz PoSyLLiKr/BoOEkXbsXC6uuWQ+PNU9MGvEkOR7wfYijkd2bN5PV/U9QVXYq82awrb6no HJWUOiBEVoFujyRTFk5C21DKHbiTF+yALilP7+E7W2B6yWQRsZofcYwq3WRxjtRaKH02 OUau9eluO7YPTvYiqm1AWNpTdBaQo9sgFtJ/xfwU5DPa880E1vrUmMwiONXsWW04xyVf Y7tA== X-Gm-Message-State: ALoCoQkjtGh0eYlWvYwpPElcVsSc+QRlDfodFKZJPm3iVRgWeUce2Ui1xMY/47RYp7dZ3nLPqu4t X-Received: by 10.194.87.102 with SMTP id w6mr5630728wjz.24.1407949677155; Wed, 13 Aug 2014 10:07:57 -0700 (PDT) Received: from alyakaslap (bzq-169-168-31-234.red.bezeqint.net. [31.168.169.234]) by mx.google.com with ESMTPSA id k6sm5636842wjq.5.2014.08.13.10.07.55 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 13 Aug 2014 10:07:55 -0700 (PDT) Message-ID: From: "Alex Lyakas" To: "Dave Chinner" Cc: "Brian Foster" , References: <4B2A412C75324EE9880358513C069476@alyakaslap> <9D3CBECB663B4A77B7EF74B67973310A@alyakaslap> <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> In-Reply-To: <20140812235615.GB20518@dastard> Subject: Re: use-after-free on log replay failure Date: Wed, 13 Aug 2014 20:07:58 +0300 X-ASG-Orig-Subj: Re: use-after-free on log replay failure MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-wi0-f180.google.com[209.85.212.180] X-Barracuda-Start-Time: 1407949678 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8404 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Dave, I compiled kernel 3.16 today, top commit being: commit 19583ca584d6f574384e17fe7613dfaeadcdc4a6 Author: Linus Torvalds Date: Sun Aug 3 15:25:02 2014 -0700 Linux 3.16 (also had to use the updated copy of dm-linear from 3.16). I would say that the problem reproduces, but it looks a little differently. Typical flow is: Aug 13 19:45:48 vc-00-00-1383-dev kernel: [ 143.521383] XFS (dm-0): Mounting V4 Filesystem Aug 13 19:45:48 vc-00-00-1383-dev kernel: [ 143.558558] XFS (dm-0): Sleep 10s before log recovery Aug 13 19:45:58 vc-00-00-1383-dev kernel: [ 153.560139] XFS (dm-0): Starting recovery (logdev: internal) Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.085826] XFS (dm-0): metadata I/O error: block 0x1 ("xlog_recover_iodone") error 28 numblks 1 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.087336] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 383 of file /mnt/share/src/linux-mainline/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa030d5f8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.087341] XFS (dm-0): I/O Error Detected. Shutting down filesystem Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088455] XFS (dm-0): Please umount the filesystem and rectify the problem(s) Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088601] XFS (dm-0): metadata I/O error: block 0x8 ("xlog_recover_iodone") error 28 numblks 8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088605] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 383 of file /mnt/share/src/linux-mainline/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa030d5f8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088658] XFS (dm-0): metadata I/O error: block 0x10 ("xlog_recover_iodone") error 28 numblks 8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088663] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 383 of file /mnt/share/src/linux-mainline/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa030d5f8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088702] XFS (dm-0): metadata I/O error: block 0x40 ("xlog_recover_iodone") error 28 numblks 16 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088714] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 383 of file /mnt/share/src/linux-mainline/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa030d5f8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088719] XFS (dm-0): metadata I/O error: block 0xa00060 ("xlog_recover_iodone") error 28 numblks 16 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.088731] XFS (dm-0): xfs_do_force_shutdown(0x1) called from line 383 of file /mnt/share/src/linux-mainline/fs/xfs/xfs_log_recover.c. Return address = 0xffffffffa030d5f8 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.096288] XFS (dm-0): log mount/recovery failed: error 28 Aug 13 19:45:59 vc-00-00-1383-dev kernel: [ 154.096482] XFS (dm-0): log mount failed So there is no clearly-looking problem like with my development kernel (which also had KMEMLEAK enabled, which changes timings significantly). However, after several seconds, kernel panics sporadically with stacks like [1], [2], and sometimes KVM dies on me with messages like[3], [4]. So definitely this test corrupts some internal kernel structures, and with KMEMLEAK enabled this corruption is more clear. I put the metadump from this experiment here: https://drive.google.com/file/d/0ByBy89zr3kJNSGxoc3U4X1lOZ2s/edit?usp=sharing Thanks, Alex. [1] Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.223389] BUG: unable to handle kernel paging request at 00007f9e50678000 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] IP: [] kmem_cache_alloc+0x68/0x160 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] PGD 362b8067 PUD 7a9d9067 PMD 7849f067 PTE 0 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] Oops: 0000 [#1] SMP Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] Modules linked in: xfs(O) libcrc32c dm_linear_custom(O) deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic cmac xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin nfsd nfs_acl ppdev dm_multipath psmouse parport_pc serio_raw i2c_piix4 mac_hid lp rpcsec_gss_krb5 parport auth_rpcgss oid_registry nfsv4 nfs fscache lockd sunrpc floppy Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] CPU: 1 PID: 3302 Comm: cron Tainted: G O 3.16.0-999-generic #201408131143 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] task: ffff88007a9d48c0 ti: ffff88007aeb0000 task.ti: ffff88007aeb0000 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RIP: 0010:[] [] kmem_cache_alloc+0x68/0x160 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RSP: 0018:ffff88007aeb3cc0 EFLAGS: 00010286 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RAX: 0000000000000000 RBX: ffff88007a137048 RCX: 000000000001ff04 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RDX: 000000000001ff03 RSI: 00000000000000d0 RDI: 0000000000015d20 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RBP: ffff88007aeb3d10 R08: ffff88007fc95d20 R09: 0000000000000003 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] R10: 0000000000000003 R11: ffff8800362b83d0 R12: ffff88007d001b00 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] R13: 00007f9e50678000 R14: ffffffff811767fd R15: 00000000000000d0 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] FS: 00007f9e5066b7c0(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] CR2: 00007f9e50678000 CR3: 0000000036743000 CR4: 00000000000006e0 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] Stack: Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] 00007f9e4e9d4fff ffffffff811767d6 0000000000000040 0000000000000048 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] ffff88007aeb3d40 ffff88007a137048 ffff88007af7cb80 ffff880079814da8 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] ffff88007af7cc38 ffff88007af7cc48 ffff88007aeb3d40 ffffffff811767fd Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] Call Trace: Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] ? anon_vma_fork+0x56/0x130 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] anon_vma_fork+0x7d/0x130 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] dup_mmap+0x1c5/0x380 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] dup_mm+0xbe/0x155 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] copy_mm+0xc6/0xe9 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] copy_process.part.35+0x694/0xe90 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] copy_process+0x80/0x90 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] do_fork+0x62/0x280 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] ? cap_task_setnice+0xe/0x10 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] ? security_task_setnice+0x16/0x20 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] ? set_one_prio+0x88/0xd0 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] SyS_clone+0x16/0x20 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] stub_clone+0x69/0x90 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] [] ? system_call_fastpath+0x16/0x1b Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] Code: 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 e6 00 00 00 48 85 c0 0f 84 dd 00 00 00 49 63 44 24 20 49 8b 3c 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b5 49 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RIP [] kmem_cache_alloc+0x68/0x160 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] RSP Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.224019] CR2: 00007f9e50678000 Aug 13 19:46:01 vc-00-00-1383-dev kernel: [ 156.276967] ---[ end trace 56118c807adeb6de ]--- Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.136602] BUG: unable to handle kernel paging request at 00007f9e50678000 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.137877] IP: [] kmem_cache_alloc_trace+0x6c/0x160 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.139042] PGD 79732067 PUD 0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.139645] Oops: 0000 [#2] SMP Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] Modules linked in: xfs(O) libcrc32c dm_linear_custom(O) deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic cmac xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo dm_round_robin nfsd nfs_acl ppdev dm_multipath psmouse parport_pc serio_raw i2c_piix4 mac_hid lp rpcsec_gss_krb5 parport auth_rpcgss oid_registry nfsv4 nfs fscache lockd sunrpc floppy Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] CPU: 1 PID: 1688 Comm: whoopsie Tainted: G D O 3.16.0-999-generic #201408131143 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] task: ffff88007c261840 ti: ffff8800799a8000 task.ti: ffff8800799a8000 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RIP: 0010:[] [] kmem_cache_alloc_trace+0x6c/0x160 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RSP: 0018:ffff8800799abdd8 EFLAGS: 00010286 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RAX: 0000000000000000 RBX: ffff88007bd0e080 RCX: 000000000001ff04 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RDX: 000000000001ff03 RSI: 00000000000000d0 RDI: 0000000000015d20 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RBP: ffff8800799abe28 R08: ffff88007fc95d20 R09: 0000000000000000 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] R10: 0000000000000000 R11: 0000000000000246 R12: ffff88007d001b00 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] R13: 00007f9e50678000 R14: ffffffff815bbbdb R15: 00000000000000d0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] FS: 00007fa0248e37c0(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] CR2: 00007f9e50678000 CR3: 00000000367c0000 CR4: 00000000000006e0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] Stack: Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] ffff88007c7ee780 ffffffff815bbbbd 0000000000000040 0000000000000280 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] ffff8800799abe08 ffff88007bd0e080 0000000000000000 0000000000000000 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] 0000000000000000 0000000000000000 ffff8800799abe58 ffffffff815bbbdb Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] Call Trace: Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] ? sock_alloc_inode+0x2d/0xd0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] sock_alloc_inode+0x4b/0xd0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] alloc_inode+0x26/0xa0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] new_inode_pseudo+0x13/0x60 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] sock_alloc+0x1e/0x80 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] __sock_create+0x95/0x200 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] sock_create+0x30/0x40 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] SyS_socket+0x36/0xb0 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] [] system_call_fastpath+0x16/0x1b Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] Code: 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 e2 00 00 00 48 85 c0 0f 84 d9 00 00 00 49 63 44 24 20 49 8b 3c 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b5 49 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RIP [] kmem_cache_alloc_trace+0x6c/0x160 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] RSP Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.140050] CR2: 00007f9e50678000 Aug 13 19:46:12 vc-00-00-1383-dev kernel: [ 167.185653] ---[ end trace 56118c807adeb6df ]--- [2] Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.566506] BUG: unable to handle kernel paging request at 00007f41d65a100c Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.567769] IP: [] vring_add_indirect+0x87/0x210 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.568859] PGD 7b4a7067 PUD 7b4a8067 PMD 7b4aa067 PTE 8000000076f5b065 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570055] Oops: 0003 [#1] SMP Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Modules linked in: xfs(O) libcrc32c dm_linear_custom(O) deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic cmac xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo nfsd nfs_acl dm_round_robin ppdev parport_pc mac_hid dm_multipath i2c_piix4 psmouse serio_raw rpcsec_gss_krb5 auth_rpcgss oid_registry lp nfsv4 parport nfs fscache lockd sunrpc floppy Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CPU: 3 PID: 3329 Comm: mount Tainted: G O 3.16.0-999-generic #201408131143 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] task: ffff88007b2ac8c0 ti: ffff88007a900000 task.ti: ffff88007a900000 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RIP: 0010:[] [] vring_add_indirect+0x87/0x210 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RSP: 0018:ffff88007a903688 EFLAGS: 00010006 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RAX: ffff88007a9037b8 RBX: ffff88007a903788 RCX: 00007f41d65a1000 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RDX: 000000000001da11 RSI: 0000160000000000 RDI: ffff88007a9037b8 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RBP: ffff88007a9036d8 R08: ffff88007fd95d20 R09: ffffffff814069f6 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] R10: 0000000000000003 R11: ffff88007a903860 R12: ffffffff81406cb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] R13: ffff88007c9ae000 R14: 0000000000000000 R15: 00007f41d65a1000 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] FS: 00007f41d67b5800(0000) GS:ffff88007fd80000(0000) knlGS:0000000000000000 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CR2: 00007f41d65a100c CR3: 000000007a943000 CR4: 00000000000006e0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Stack: Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] ffff88007fff8700 0000000300000202 000000007a9037b8 0000000100000002 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] ffff88007a903768 ffff88007c9ae000 ffff88007c9ae000 ffff88007a903788 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] 0000000000000001 0000000000000003 ffff88007a903768 ffffffff814072a2 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Call Trace: Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] virtqueue_add_sgs+0x2f2/0x340 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __virtblk_add_req+0xda/0x1b0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? __bt_get+0xc7/0x1e0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? bt_get+0x5a/0x180 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? blk_rq_map_sg+0x3c/0x170 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] virtio_queue_rq+0xfa/0x250 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __blk_mq_run_hw_queue+0xff/0x260 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blk_mq_run_hw_queue+0x7d/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blk_sq_make_request+0x171/0x2f0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] generic_make_request.part.75+0x75/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] generic_make_request+0x68/0x70 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] submit_bio+0x75/0x140 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] _submit_bh+0x113/0x160 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] submit_bh+0x10/0x20 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] block_read_full_page+0x1f5/0x340 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? I_BDEV+0x10/0x10 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? __inc_zone_page_state+0x35/0x40 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? __add_to_page_cache_locked+0xa4/0x130 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blkdev_readpage+0x18/0x20 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] read_pages+0xe8/0x100 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __do_page_cache_readahead+0x163/0x170 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] force_page_cache_readahead+0x75/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] page_cache_sync_readahead+0x43/0x50 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] do_generic_file_read+0x30e/0x490 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] generic_file_read_iter+0xf4/0x150 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? handle_mm_fault+0x48/0x80 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? find_vma+0x20/0x80 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blkdev_read_iter+0x37/0x40 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] new_sync_read+0x78/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] vfs_read+0xab/0x180 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] SyS_read+0x4f/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] system_call_fastpath+0x16/0x1b Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Code: 00 00 00 00 48 63 45 c4 48 8b 04 c3 48 85 c0 74 59 0f 1f 00 49 63 ce 48 be 00 00 00 00 00 16 00 00 48 89 c7 48 c1 e1 04 4c 01 f9 <66> c7 41 0c 01 00 48 8b 10 48 83 e2 fc 48 01 f2 8b 70 08 48 c1 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RIP [] vring_add_indirect+0x87/0x210 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RSP Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CR2: 00007f41d65a100c Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] ---[ end trace cc83f9989ae9e2af ]--- Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] BUG: unable to handle kernel paging request at 0000000079a0b008 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] IP: [] acct_collect+0x60/0x1b0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] PGD 7b4ac067 PUD 7b58c067 PMD 7b4a3067 PTE 0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Oops: 0000 [#2] SMP Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Modules linked in: xfs(O) libcrc32c dm_linear_custom(O) deflate ctr twofish_generic twofish_x86_64_3way glue_helper lrw xts gf128mul twofish_x86_64 twofish_common camellia_generic serpent_generic blowfish_generic blowfish_x86_64 blowfish_common cast5_generic cast_common des_generic cmac xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo nfsd nfs_acl dm_round_robin ppdev parport_pc mac_hid dm_multipath i2c_piix4 psmouse serio_raw rpcsec_gss_krb5 auth_rpcgss oid_registry lp nfsv4 parport nfs fscache lockd sunrpc floppy Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CPU: 3 PID: 3329 Comm: mount Tainted: G D O 3.16.0-999-generic #201408131143 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] task: ffff88007b2ac8c0 ti: ffff88007a900000 task.ti: ffff88007a900000 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RIP: 0010:[] [] acct_collect+0x60/0x1b0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RSP: 0018:ffff88007a903328 EFLAGS: 00010006 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RAX: 0000000079a0b000 RBX: 0000000000000009 RCX: 0000000000000245 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RDX: 0000000000000275 RSI: 0000000000000001 RDI: ffff8800362fb860 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RBP: ffff88007a903348 R08: 00007ffffffff000 R09: 0000000000000d01 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88007afa4800 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] R13: ffff88007b2ac8c0 R14: 0001000101133010 R15: 0000000000000046 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] FS: 00007f41d67b5800(0000) GS:ffff88007fd80000(0000) knlGS:0000000000000000 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CR2: 0000000079a0b008 CR3: 000000007a943000 CR4: 00000000000006e0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Stack: Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] ffff88007b2ac8c0 0000000000000009 ffff88007a9035d8 0000000000000001 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] ffff88007a903398 ffffffff810582f7 0000000000000007 0000000000000006 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] 000000000000000a 0000000000000046 0000000000000009 ffff88007a9035d8 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Call Trace: Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] do_exit+0x367/0x470 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] oops_end+0xa5/0xf0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] no_context+0x1be/0x1cd Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __bad_area_nosemaphore+0x1d2/0x1f1 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] bad_area_access_error+0x45/0x4e Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __do_page_fault+0x2fe/0x550 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? kernfs_path+0x55/0x70 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? cfq_find_alloc_queue+0x293/0x430 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? mempool_alloc_slab+0x15/0x20 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? mempool_alloc_slab+0x15/0x20 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? virtqueue_get_buf+0xe0/0xe0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] do_page_fault+0xc/0x10 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] page_fault+0x22/0x30 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? virtqueue_get_buf+0xe0/0xe0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? vring_add_indirect+0x36/0x210 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? vring_add_indirect+0x87/0x210 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? vring_add_indirect+0x36/0x210 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] virtqueue_add_sgs+0x2f2/0x340 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __virtblk_add_req+0xda/0x1b0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? __bt_get+0xc7/0x1e0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? bt_get+0x5a/0x180 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? blk_rq_map_sg+0x3c/0x170 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] virtio_queue_rq+0xfa/0x250 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __blk_mq_run_hw_queue+0xff/0x260 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blk_mq_run_hw_queue+0x7d/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blk_sq_make_request+0x171/0x2f0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] generic_make_request.part.75+0x75/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] generic_make_request+0x68/0x70 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] submit_bio+0x75/0x140 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] _submit_bh+0x113/0x160 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] submit_bh+0x10/0x20 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] block_read_full_page+0x1f5/0x340 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? I_BDEV+0x10/0x10 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? __inc_zone_page_state+0x35/0x40 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? __add_to_page_cache_locked+0xa4/0x130 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blkdev_readpage+0x18/0x20 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] read_pages+0xe8/0x100 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] __do_page_cache_readahead+0x163/0x170 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] force_page_cache_readahead+0x75/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] page_cache_sync_readahead+0x43/0x50 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] do_generic_file_read+0x30e/0x490 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] generic_file_read_iter+0xf4/0x150 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? handle_mm_fault+0x48/0x80 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] ? find_vma+0x20/0x80 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] blkdev_read_iter+0x37/0x40 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] new_sync_read+0x78/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] vfs_read+0xab/0x180 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] SyS_read+0x4f/0xb0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] [] system_call_fastpath+0x16/0x1b Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Code: 00 74 55 49 8b bd a0 03 00 00 48 83 c7 60 e8 a8 65 61 00 49 8b 85 a0 03 00 00 48 8b 00 48 85 c0 74 1d 66 0f 1f 84 00 00 00 00 00 <4c> 03 70 08 4c 2b 30 48 8b 40 10 48 85 c0 75 f0 49 c1 ee 0a 65 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RIP [] acct_collect+0x60/0x1b0 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] RSP Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] CR2: 0000000079a0b008 Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] ---[ end trace cc83f9989ae9e2b0 ]--- Aug 13 19:49:06 vc-00-00-1383-dev kernel: [ 118.570399] Fixing recursive fault but reboot is needed! [3] (qemu) KVM internal error. Suberror: 1 emulation failure RAX=0000000000000000 RBX=0000000000000000 RCX=0000000000000000 RDX=0000000000000623 RSI=0000000000000000 RDI=0000000000000000 RBP=0000000000000000 RSP=0000000000000000 R8 =0000000000000000 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000000 R12=0000000000000000 R13=0000000000000000 R14=0000000000000000 R15=0000000000000000 RIP=000000000000fff0 RFL=00010002 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00000000 CS =0033 0000000000000000 ffffffff 00a0fb00 DPL=3 CS64 [-RA] SS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] DS =0000 0000000000000000 ffffffff 00000000 FS =0000 00007f0514f7c700 ffffffff 00000000 GS =0000 0000000000000000 ffffffff 00000000 LDT=0000 0000000000000000 ffffffff 00000000 TR =0040 ffff88007fc90380 00002087 00008b00 DPL=0 TSS64-busy GDT= ffff88007fc84000 0000007f IDT= ffffffffff57c000 00000fff CR0=80050033 CR2=000000000061cd64 CR3=000000007ae6b000 CR4=000006e0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 [4] (qemu) qemu-system-x86_64: virtio: trying to map MMIO memory -----Original Message----- From: Dave Chinner Sent: 13 August, 2014 2:56 AM To: Alex Lyakas Cc: Brian Foster ; xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > Hello Dave, Brian, > I will describe a generic reproduction that you ask for. > > It was performed on pristine XFS code from 3.8.13, taken from here: > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git .... > I mounted XFS with the following options: > rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 > > I started a couple of processes writing files sequentially onto this > mount point, and after few seconds crashed the VM. > When the VM came up, I took the metadump file and placed it in: > https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing > > Then I set up the following Device Mapper target onto /dev/vde: > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > I am attaching the code (and Makefile) of dm-linear-custom target. > It is exact copy of dm-linear, except that it has a module > parameter. With the parameter set to 0, this is an identity mapping > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > failed with ENOSPC. There is a workqueue to fail them in a different > context (not sure if really needed, but that's what our "real" > custom > block device does). Well, they you go. That explains it - an asynchronous dispatch error happening fast enough to race with the synchronous XFS dispatch processing. dispatch thread device workqueue xfs_buf_hold(); atomic_set(b_io_remaining, 1) atomic_inc(b_io_remaining) submit_bio(bio) queue_work(bio) xfs_buf_ioend(bp, ....); atomic_dec(b_io_remaining) xfs_buf_rele() bio error set to ENOSPC bio->end_io() xfs_buf_bio_endio() bp->b_error = ENOSPC _xfs_buf_ioend(bp, 1); atomic_dec(b_io_remaining) xfs_buf_ioend(bp, 1); queue_work(bp) xfs_buf_iowait() if (bp->b_error) return error; if (error) xfs_buf_relse() xfs_buf_rele() xfs_buf_free() And now we have a freed buffer that is queued on the io completion queue. Basically, it requires the buffer error to be set asynchronously *between* the dispatch decrementing it's I/O count after dispatch, but before we wait on the IO. Not sure what the right fix is yet - removing the bp->b_error check from xfs_buf_iowait() doesn't solve the problem - it just prevents this code path from being tripped over by the race condition. But, just to validate this is the problem, you should be able to reproduce this on a 3.16 kernel. Can you try that, Alex? Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Wed Aug 13 15:59:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BFB237F3F for ; Wed, 13 Aug 2014 15:59:41 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 79DD5304043 for ; Wed, 13 Aug 2014 13:59:38 -0700 (PDT) X-ASG-Debug-ID: 1407963571-04bdf06ef6123500001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id O9OHAdJwAL5GM9eC for ; Wed, 13 Aug 2014 13:59:32 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjgLADLR61N5LDJ8PGdsb2JhbABRCYMNUleCKqwQDAEBAQEBAQaYEweGRIFbhWsBgRUXBQEBAQE4NoQDAQEEAScTHCMFCwgDDgoJJQ8FJQMHGhOIOgcOxwUXGIVkiHVbB4MvgR0FhQMCkD6GdZhtKy8 Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 14 Aug 2014 06:29:30 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHfdp-0005iB-4o; Thu, 14 Aug 2014 06:59:29 +1000 Date: Thu, 14 Aug 2014 06:59:29 +1000 From: Dave Chinner To: Brian Foster Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140813205929.GE20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140804230721.GA20518@dastard> <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> <20140813125932.GA4605@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140813125932.GA4605@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1407963571 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8411 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Wed, Aug 13, 2014 at 08:59:32AM -0400, Brian Foster wrote: > On Wed, Aug 13, 2014 at 09:56:15AM +1000, Dave Chinner wrote: > > On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > > > Hello Dave, Brian, > > > I will describe a generic reproduction that you ask for. > > > > > > It was performed on pristine XFS code from 3.8.13, taken from here: > > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git > > .... > > > I mounted XFS with the following options: > > > rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 > > > > > > I started a couple of processes writing files sequentially onto this > > > mount point, and after few seconds crashed the VM. > > > When the VM came up, I took the metadump file and placed it in: > > > https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing > > > > > > Then I set up the following Device Mapper target onto /dev/vde: > > > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > > > I am attaching the code (and Makefile) of dm-linear-custom target. > > > It is exact copy of dm-linear, except that it has a module > > > parameter. With the parameter set to 0, this is an identity mapping > > > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > > > failed with ENOSPC. There is a workqueue to fail them in a different > > > context (not sure if really needed, but that's what our "real" > > > custom > > > block device does). > > > > Well, they you go. That explains it - an asynchronous dispatch error > > happening fast enough to race with the synchronous XFS dispatch > > processing. > > > > dispatch thread device workqueue > > xfs_buf_hold(); > > atomic_set(b_io_remaining, 1) > > atomic_inc(b_io_remaining) > > submit_bio(bio) > > queue_work(bio) > > xfs_buf_ioend(bp, ....); > > atomic_dec(b_io_remaining) > > xfs_buf_rele() > > bio error set to ENOSPC > > bio->end_io() > > xfs_buf_bio_endio() > > bp->b_error = ENOSPC > > _xfs_buf_ioend(bp, 1); > > atomic_dec(b_io_remaining) > > xfs_buf_ioend(bp, 1); > > queue_work(bp) > > xfs_buf_iowait() > > if (bp->b_error) return error; > > if (error) > > xfs_buf_relse() > > xfs_buf_rele() > > xfs_buf_free() > > > > And now we have a freed buffer that is queued on the io completion > > queue. Basically, it requires the buffer error to be set > > asynchronously *between* the dispatch decrementing it's I/O count > > after dispatch, but before we wait on the IO. > > > > That's basically the theory I wanted to test with the experimental > patch. E.g., the error check races with the iodone workqueue item. > > > Not sure what the right fix is yet - removing the bp->b_error check > > from xfs_buf_iowait() doesn't solve the problem - it just prevents > > this code path from being tripped over by the race condition. > > > > Perhaps I'm missing some context... I don't follow how removing the > error check doesn't solve the problem. It clearly closes the race and > perhaps there are other means of doing the same thing, but what part of > the problem does that leave unresolved? Anything that does: xfs_buf_iorequest(bp); if (bp->b_error) xfs_buf_relse(bp); is susceptible to the same race condition. based on bp->b_error being set asynchronously and before the buffer IO completion processing is complete. > E.g., we provide a > synchronization mechanism for an async submission path and an object > (xfs_buf) that is involved with potentially multiple such async (I/O) > operations. The async callback side manages the counts of outstanding > bios etc. to set the state of the buf object correctly and fires a > completion when everything is done. The calling side simply waits on the > completion before it can analyze state of the object. Referring to > anything inside that object that happens to be managed by the buffer I/O > mechanism before the buffer is considered complete just seems generally > racy. The point is that the IO submitter holds the buffer lock and so has "exclusive" access to the buffer, even after it is submitted. It is allowed to check the internal state of the buffer at any time, and it is expected to be sane, including while IO completion processing is running. The real issue is that workqueue based IO completion processing is not protected by a reference count of any kind for synchronous IO. It is done with only the reference count of lock holder held, and so if the lock holder unlocks and frees the buffer, then that buffer will be freed. This issue doesn't exist with B_ASYNC IO submission, because the B_ASYNC IO owns the reference and the the buffer lock and drops them from the workqueue when the IO comlpetion processing actuall completes... > It looks like submit_bio() manages this by providing the error through > the callback (always). It also doesn't look like submission path is > guaranteed to be synchronous either (consider md, which appears to use > workqueues and kernel threads)), so I'm not sure that '...; > xfs_buf_iorequest(bp); if (bp->b_error)' is really safe anywhere unless > you're explicitly looking for a write verifier error or something and > do nothing further on the buf contingent on completion (e.g., freeing it > or something it depends on). My point remains that it *should be safe*, and the intent is that the caller should be able to check for submission errors without being exposed to a use after free situation. That's the bug we need to fix, not say "you can't check for submission errors on synchronous IO" to avoid the race condition..... Cheers, Dave -- Dave Chinner david@fromorbit.com From david@fromorbit.com Wed Aug 13 16:04:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D66D87F4E for ; Wed, 13 Aug 2014 16:04:52 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5C705AC006 for ; Wed, 13 Aug 2014 14:04:49 -0700 (PDT) X-ASG-Debug-ID: 1407963884-04cbb0508a122fe0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id W5tPLqMq5kbCYokO for ; Wed, 13 Aug 2014 14:04:45 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlgUAFTS61N5LDJ8PGdsb2JhbABagw2BKYIqhQenFQEBAQEBB6A5hWsBgRUXBQEBAQE4NoQEAQU6HCMQCAMOCgkaCw8FJQMHGhOIQccUFxiFZIYhgy8Hgy+BHQWcOIwGiw+BWCsv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 14 Aug 2014 06:34:12 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHfiL-0005jV-4y; Thu, 14 Aug 2014 07:04:09 +1000 Date: Thu, 14 Aug 2014 07:04:09 +1000 From: Dave Chinner To: Brian Foster Cc: "Carlos E. R." , XFS mailing list Subject: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. Message-ID: <20140813210409.GF20518@dastard> X-ASG-Orig-Subj: Re: Subject : Happened again, 20140811 -- Got "Internal error XFS_WANT_CORRUPTED_GOTO". Filesystem needs reformatting to correct issue. References: <53E8D9F6.7080704@sgi.com> <53E93530.4070902@sgi.com> <53E93C29.1020103@sgi.com> <20140812165143.GB46654@bfoster.bfoster> <20140813120450.GA3569@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140813120450.GA3569@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1407963884 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8411 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 13, 2014 at 08:04:51AM -0400, Brian Foster wrote: > On Tue, Aug 12, 2014 at 11:17:36PM +0200, Carlos E. R. wrote: > > This the point I'm at now. Are you saying that the filesystem can explode at > > any time now? I have not written any files, beyond what the desktop does > > automatically. > > > > No, the filesystem has been fixed by repair. I'm just saying that > somehow the fs creates a duplicate free space record in one of the free > space trees. Simple answer: the block is being freed twice. i.e. from a workqueue during the hibernate process after the relevant memory has been snapshotted (i.e. because the workqueue was not frozen), and again after thaw when the memory image is restored to RAM and the workqueue is started up again and the workqueue runs the same work a second time. Cheers, Dave. -- Dave Chinner david@fromorbit.com From zhangxiufeng@crosston.com Wed Aug 13 17:44:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.2 required=5.0 tests=DEAR_SOMETHING, FREEMAIL_FORGED_REPLYTO autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 79B3E7F51 for ; Wed, 13 Aug 2014 17:44:01 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 50631304043 for ; Wed, 13 Aug 2014 15:43:57 -0700 (PDT) X-ASG-Debug-ID: 1407969832-04cbb0508d125a30001-NocioJ Received: from smtp5x01.east.net (smtp5x01.east.net [211.100.47.38]) by cuda.sgi.com with ESMTP id IXBkV7Zii9srwCiP for ; Wed, 13 Aug 2014 15:43:53 -0700 (PDT) X-Barracuda-Envelope-From: zhangxiufeng@crosston.com X-Barracuda-Apparent-Source-IP: 211.100.47.38 Received: from [173.208.175.184] (unknown [173.208.175.184]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp5x01.east.net (Postfix) with ESMTPSA id 599847FE8; Thu, 14 Aug 2014 06:43:46 +0800 (CST) Content-Type: text/plain; charset="iso-8859-1" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Description: Mail message body Subject: Direct provider To: Recipient X-ASG-Orig-Subj: Direct provider From: "financial links" Date: Wed, 13 Aug 2014 15:43:25 -0700 Reply-To: financial.links@aol.com X-Barracuda-Connect: smtp5x01.east.net[211.100.47.38] X-Barracuda-Start-Time: 1407969832 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.84 X-Barracuda-Spam-Status: No, SCORE=1.84 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA609_MID, BSF_SC0_SA_TO_FROM_ADDR_MATCH, MISSING_MID X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8414 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.14 MISSING_MID Missing Message-Id: header 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address 1.20 BSF_SC0_SA609_MID Custom Rule SA609_MID Message-Id: <20140813224357.D9D34106C883@cuda.sgi.com> Dear Sir/Mdm, = We are direct provider for wire transfer instruments. 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From bfoster@redhat.com Wed Aug 13 18:21:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9ED867F3F for ; Wed, 13 Aug 2014 18:21:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 83ADD8F8059 for ; Wed, 13 Aug 2014 16:21:51 -0700 (PDT) X-ASG-Debug-ID: 1407972106-04cb6c4c93104450001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 7TOj6su2b9MvALH3 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 16:21:47 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7DNLcGQ007189 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Aug 2014 19:21:38 -0400 Received: from laptop.bfoster (vpn-55-52.rdu2.redhat.com [10.10.55.52]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7DNLZaL027668 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Wed, 13 Aug 2014 19:21:37 -0400 Date: Wed, 13 Aug 2014 19:21:35 -0400 From: Brian Foster To: Dave Chinner Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140813232135.GB8456@laptop.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> <20140813125932.GA4605@bfoster.bfoster> <20140813205929.GE20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140813205929.GE20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1407972107 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 14, 2014 at 06:59:29AM +1000, Dave Chinner wrote: > On Wed, Aug 13, 2014 at 08:59:32AM -0400, Brian Foster wrote: > > On Wed, Aug 13, 2014 at 09:56:15AM +1000, Dave Chinner wrote: > > > On Tue, Aug 12, 2014 at 03:39:02PM +0300, Alex Lyakas wrote: > > > > Hello Dave, Brian, > > > > I will describe a generic reproduction that you ask for. > > > > > > > > It was performed on pristine XFS code from 3.8.13, taken from here: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git > > > .... > > > > I mounted XFS with the following options: > > > > rw,sync,noatime,wsync,attr2,inode64,noquota 0 0 > > > > > > > > I started a couple of processes writing files sequentially onto this > > > > mount point, and after few seconds crashed the VM. > > > > When the VM came up, I took the metadump file and placed it in: > > > > https://drive.google.com/file/d/0ByBy89zr3kJNa0ZpdmZFS242RVU/edit?usp=sharing > > > > > > > > Then I set up the following Device Mapper target onto /dev/vde: > > > > dmsetup create VDE --table "0 41943040 linear-custom /dev/vde 0" > > > > I am attaching the code (and Makefile) of dm-linear-custom target. > > > > It is exact copy of dm-linear, except that it has a module > > > > parameter. With the parameter set to 0, this is an identity mapping > > > > onto /dev/vde. If the parameter is set to non-0, all WRITE bios are > > > > failed with ENOSPC. There is a workqueue to fail them in a different > > > > context (not sure if really needed, but that's what our "real" > > > > custom > > > > block device does). > > > > > > Well, they you go. That explains it - an asynchronous dispatch error > > > happening fast enough to race with the synchronous XFS dispatch > > > processing. > > > > > > dispatch thread device workqueue > > > xfs_buf_hold(); > > > atomic_set(b_io_remaining, 1) > > > atomic_inc(b_io_remaining) > > > submit_bio(bio) > > > queue_work(bio) > > > xfs_buf_ioend(bp, ....); > > > atomic_dec(b_io_remaining) > > > xfs_buf_rele() > > > bio error set to ENOSPC > > > bio->end_io() > > > xfs_buf_bio_endio() > > > bp->b_error = ENOSPC > > > _xfs_buf_ioend(bp, 1); > > > atomic_dec(b_io_remaining) > > > xfs_buf_ioend(bp, 1); > > > queue_work(bp) > > > xfs_buf_iowait() > > > if (bp->b_error) return error; > > > if (error) > > > xfs_buf_relse() > > > xfs_buf_rele() > > > xfs_buf_free() > > > > > > And now we have a freed buffer that is queued on the io completion > > > queue. Basically, it requires the buffer error to be set > > > asynchronously *between* the dispatch decrementing it's I/O count > > > after dispatch, but before we wait on the IO. > > > > > > > That's basically the theory I wanted to test with the experimental > > patch. E.g., the error check races with the iodone workqueue item. > > > > > Not sure what the right fix is yet - removing the bp->b_error check > > > from xfs_buf_iowait() doesn't solve the problem - it just prevents > > > this code path from being tripped over by the race condition. > > > > > > > Perhaps I'm missing some context... I don't follow how removing the > > error check doesn't solve the problem. It clearly closes the race and > > perhaps there are other means of doing the same thing, but what part of > > the problem does that leave unresolved? > > Anything that does: > > xfs_buf_iorequest(bp); > if (bp->b_error) > xfs_buf_relse(bp); > > is susceptible to the same race condition. based on bp->b_error > being set asynchronously and before the buffer IO completion > processing is complete. > Understood, by why would anything do that (as opposed to xfs_buf_iowait())? I don't see that we do that anywhere today (the check buried within xfs_buf_iowait() notwithstanding of course). >From what I can see, all it really guarantees is that the submission has either passed/failed the write verifier, yes? > > > E.g., we provide a > > synchronization mechanism for an async submission path and an object > > (xfs_buf) that is involved with potentially multiple such async (I/O) > > operations. The async callback side manages the counts of outstanding > > bios etc. to set the state of the buf object correctly and fires a > > completion when everything is done. The calling side simply waits on the > > completion before it can analyze state of the object. Referring to > > anything inside that object that happens to be managed by the buffer I/O > > mechanism before the buffer is considered complete just seems generally > > racy. > > The point is that the IO submitter holds the buffer lock and so has > "exclusive" access to the buffer, even after it is submitted. It is > allowed to check the internal state of the buffer at any time, and > it is expected to be sane, including while IO completion processing > is running. > Fair enough, but if the mechanism is async the submitter clearly knows that's not failsafe (i.e., passing the check above doesn't mean the I/O will not fail). > The real issue is that workqueue based IO completion processing is > not protected by a reference count of any kind for synchronous IO. > It is done with only the reference count of lock holder held, and so > if the lock holder unlocks and frees the buffer, then that buffer > will be freed. > I see, the notion of the work item having a hold/refcount on the buffer makes sense. But with a submission/wait mechanism that waits on actual "completion" of the I/O (e.g., complete(bp->b_iowait)), that only offers protection for the case where a sync I/O submitter doesn't wait. I suppose that's possible, but also seems like a misuse of sync I/O. E.g., why wouldn't that caller do async I/O? > This issue doesn't exist with B_ASYNC IO submission, because the > B_ASYNC IO owns the reference and the the buffer lock and drops them > from the workqueue when the IO comlpetion processing actuall > completes... > Indeed. I wasn't clear on the reference ownership nuance between the sync/async variants of I/O. Thanks for the context. That said, we also don't have submitters that check for errors on async I/O either. > > It looks like submit_bio() manages this by providing the error through > > the callback (always). It also doesn't look like submission path is > > guaranteed to be synchronous either (consider md, which appears to use > > workqueues and kernel threads)), so I'm not sure that '...; > > xfs_buf_iorequest(bp); if (bp->b_error)' is really safe anywhere unless > > you're explicitly looking for a write verifier error or something and > > do nothing further on the buf contingent on completion (e.g., freeing it > > or something it depends on). > > My point remains that it *should be safe*, and the intent is that > the caller should be able to check for submission errors without > being exposed to a use after free situation. That's the bug we need > to fix, not say "you can't check for submission errors on > synchronous IO" to avoid the race condition..... > Well, technically you can check for submission errors on sync I/O, just use the code you posted above. :) What we can't currently do is find out when the I/O subsystem is done with the buffer. Perhaps the point here is around the semantics of xfs_buf_iowait(). With a mechanism that is fundamentally async, the sync variant obviously becomes the async mechanism + some kind of synchronization. I'd expect that synchronization to not necessarily just tell me whether an error occurred, but also tell me when the I/O subsystem is done with the object I've passed (e.g., so I'm free to chuck it, scribble over it, put it back where I got it, whatever). My impression is that's the purpose of the b_iowait mechanism. Otherwise, what's the point of the whole bio_end_io->buf_ioend->b_iodone->buf_ioend round trip dance? Brian > Cheers, > > Dave > -- > Dave Chinner > david@fromorbit.com From test@reunionesecretariales.info Wed Aug 13 21:13:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0E4D57F3F for ; Wed, 13 Aug 2014 21:13:16 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id CD465304032 for ; Wed, 13 Aug 2014 19:13:15 -0700 (PDT) X-ASG-Debug-ID: 1407982390-04cbb0508b12c750001-NocioJ Received: from mail.reunionesecretariales.info (mail.reunionesecretariales.info [66.148.68.24]) by cuda.sgi.com with ESMTP id FXJ70Si6u0LsBB7p for ; Wed, 13 Aug 2014 19:13:10 -0700 (PDT) X-Barracuda-Envelope-From: test@reunionesecretariales.info X-Barracuda-Apparent-Source-IP: 66.148.68.24 Received: from SUPERB-TLBSC4RS (66.148.68.24) by mail.reunionesecretariales.info id htgdhm0our0b for ; Wed, 13 Aug 2014 21:12:39 -0500 (envelope-from ) poppop: fd25f39a-7480-48bc-843f-89413644a548 Message-ID: <1a00ebf9f99d1eed6150a80a001c83f2@reunionesecretariales.info> From: "Funciones Medulares" To: Subject: Recursos Humanos, Que Medir y Por Que Date: Wed, 13 Aug 2014 21:12:39 -0500 X-ASG-Orig-Subj: Recursos Humanos, Que Medir y Por Que MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=SPLITOR00A_001_43270671D" X-Barracuda-Connect: mail.reunionesecretariales.info[66.148.68.24] X-Barracuda-Start-Time: 1407982390 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8421 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format. ------=SPLITOR00A_001_43270671D Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 Recursos Humanos, Qu=C3=A9 Medir y Por Qu=C3=A9 M=C3=A9xico, D.F. 04 de septiembre 2014 Aprender=C3=A1, a aprovechar las VENTAJAS COMPETITIVAS de tener un = =C3=A1rea de Recursos Humanos s=C3=B3lido y manejado de manera = estrat=C3=A9gica para generar valor y fomentar la confianza, lealtad y = compromiso de los integrantes de la empresa=2E Usted dejar=C3=A1 de ser un administrador de recursos humanos tradicional = y pasivo, para convertirse en un Directivo de RRHH con visi=C3=B3n = estrat=C3=A9gica, energ=C3=ADa, liderazgo y capacidad para generar valor y = entusiasmo en su organizaci=C3=B3n.=20 Inscr=C3=ADbase y aprenda: - Cu=C3=A1les son los nuevos retos a los que se enfrenta un departamento = de Recursos Humanos=2E - Cu=C3=A1l es el rol actual de la Direcci=C3=B3n de Recursos Humanos=2E Para obtener el contenido completo de este programa responda este correo = con la palabra Informes + Nombre + Tel=C3=A9fono y se lo enviaremos a la = brevedad=2E Mayores informes e inscripci=C3=B3n, - Solic=C3=ADtala ya L=C3=ADnea directa: 01 800 212 0660=2E Att: Mildreth Lara Demasiados boletines xfs@oss.sgi.com para ya no recibirlos simplemente = env=C3=ADe un correo con asunto (Exit3) ------=SPLITOR00A_001_43270671D Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

 

Recursos Humanos, Qu=C3=A9 Medir y Por=20 Qu=C3=A9

M=C3=A9xico, D.F. = 04 de=20 septiembre=20 2014

Aprender=C3=A1,=20 a aprovechar las VENTAJAS COMPETITIVAS de tener un = =C3=A1rea de=20 Recursos Humanos s=C3=B3lido y manejado de manera = estrat=C3=A9gica para=20 generar valor y fomentar la confianza, lealtad y = compromiso de=20 los integrantes de la=20 empresa.
Usted=20 dejar=C3=A1 de ser un administrador de recursos humanos = tradicional=20 y pasivo, para convertirse en un Directivo de RRHH con = visi=C3=B3n=20 estrat=C3=A9gica, energ=C3=ADa, liderazgo y capacidad = para generar valor=20 y entusiasmo en su organizaci=C3=B3n. =

Inscr=C3=ADbase y = aprenda:
-=20 Cu=C3=A1les son los nuevos retos a los que se enfrenta = un=20 departamento de Recursos Humanos.
- Cu=C3=A1l es el = rol actual=20 de la Direcci=C3=B3n de Recursos Humanos.

Para=20 obtener el=20 contenido completo de este programa = responda=20 este correo con la palabra Informes + Nombre + = Tel=C3=A9fono y se lo = enviaremos=20 a la brevedad.

Mayores informes e inscripci=C3=B3n, - = Solic=C3=ADtala=20 ya
L=C3=ADnea=20 directa: 01 800=20 212 0660.
Att: Mildreth=20 Lara

Demasiados = boletines =20 xfs@oss.sgi.com  para ya no recibirlos  = simplemente env=C3=ADe=20 un correo con asunto=20 (Exit3)

------=SPLITOR00A_001_43270671D-- From david@fromorbit.com Wed Aug 13 22:13:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D7B717F3F for ; Wed, 13 Aug 2014 22:13:32 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id B608930404E for ; Wed, 13 Aug 2014 20:13:29 -0700 (PDT) X-ASG-Debug-ID: 1407986006-04cbb0508a12d9f0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 5TYQddMIzlI8CXZo for ; Wed, 13 Aug 2014 20:13:27 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ap4UAGoo7FN5LDJ8PGdsb2JhbABagw2BKYIqhQenJwEBAQEBAQagOYVrAYEQFwUBAQEBODaEAwEBBAE6HCMQCAMOCgklDwUlAwcaExmIIQfHGxcYhWSJUAeETAWcOJhtKy8 Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 14 Aug 2014 12:41:37 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHlRw-0006by-4j; Thu, 14 Aug 2014 13:11:36 +1000 Date: Thu, 14 Aug 2014 13:11:36 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Message-ID: <20140814031136.GG20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> <1407523766-62233-3-git-send-email-bfoster@redhat.com> <20140813154229.GB4426@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140813154229.GB4426@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1407986007 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8423 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 13, 2014 at 11:42:29AM -0400, Brian Foster wrote: > On Fri, Aug 08, 2014 at 02:49:26PM -0400, Brian Foster wrote: > > A file collapse stress test workload reproduces collapse failures > > mid-operation due to changes in the inode fork extent count across > > extent shift cycles. xfs_collapse_file_space() currently calls > > xfs_bmap_shift_extents() to shift one extent at a time per transaction. > > The extent index is used to track the next extent to shift after each > > iteration. Right, it does so after writing back all the dirty pages and invalidating the cache. This is done under the IOLOCK_EXCL, so we should end up with nothing being able to newly dirty the inode while the collapse range operation is in progress. > > > > A concurrent fsx and fsstress workload reproduces a scenario where the > > extent count changes during this sequence, causing the 'current_ext' > > index to become inaccurate and possibly skip shifting an extent. The > > likely result of this behavior is the subsequent shift attempt will not > > find a hole in the area of the skipped extent and fail, leaving the file > > in a partially collapsed state. > > > > This occurs because the ilock is released and acquired across each > > transaction and each individual extent shift. Tracepoint output shows > > that once the ilock is released after an extent shift, a pending > > blocking writeback (e.g., sync) can acquire the lock and proceed before > > the next extent is shifted down. If the writeback converts part of a > > delayed allocation earlier in the file, for example, it can insert a new > > extent into the map. Tracing confirms a call to > > xfs_bmap_add_extent_delay_real() in this particular instance. Are we getting a dirty extent in the range being collapsed, or does it exist outside the range being shifted? If outside, then shouldn't we just sync the entire file first? i.e. treat it the same way as we do xfs_swap_extents()? Realistically, cur_extent is not valid once we drop the ILOCK. Perhaps we should keep the offset of the extent we are up to in the shift, and then look up the offset to get current extent map index once we pick the ILOCK back up. That way we avoid issues with other parts of the extent map changing between ILOCK hold contexts. > > To prevent this scenario, hold the ilock across the entire extent shift > > loop in xfs_collapse_file_space(). > > > > Signed-off-by: Brian Foster > > --- > > fs/xfs/xfs_bmap_util.c | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > > index 2f1e30d..96eb97b 100644 > > --- a/fs/xfs/xfs_bmap_util.c > > +++ b/fs/xfs/xfs_bmap_util.c > > @@ -1474,6 +1474,8 @@ xfs_collapse_file_space( > > if (error) > > return error; > > > > + xfs_ilock(ip, XFS_ILOCK_EXCL); > > + > > I realized this moves the lock outside of the xfs_trans_reserve(), thus > opening a potential deadlock scenario with regard to the log. I suppose > this might be harder to hit in real life than a sync() causing the > operation to fall over mid-sequence, so I'm still Ok with keeping this > unless anybody objects. We can't do that. Inode locking rules explicitly forbid it - we've avoided needing to do break this rule for 20 years, so let's not start making exceptions now just because it's a "simple fix". Cheers, Dave. -- Dave Chinner david@fromorbit.com From administra@empresanacionalmx.info Thu Aug 14 00:47:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3BC817F3F for ; Thu, 14 Aug 2014 00:47:31 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 25FDC8F8050 for ; Wed, 13 Aug 2014 22:47:28 -0700 (PDT) X-ASG-Debug-ID: 1407995245-04cb6c4c9610ea10001-NocioJ Received: from mail4.empresanacionalmx.info (mail4.empresanacionalmx.info [66.36.250.4]) by cuda.sgi.com with ESMTP id LVT63MPcjjLnpJE5 for ; Wed, 13 Aug 2014 22:47:25 -0700 (PDT) X-Barracuda-Envelope-From: administra@empresanacionalmx.info X-Barracuda-Apparent-Source-IP: 66.36.250.4 Received: from SUPERB-B8WCSALV (66.36.250.99) by mail4.empresanacionalmx.info id hth6lc0our0v for ; Thu, 14 Aug 2014 00:47:02 -0500 (envelope-from ) pop: fd25f39a-7480-48bc-843f-89413644a548 Message-ID: <833458d7c71b12a38dd0aa06001d929f@empresanacionalmx.info> From: "Administracion Publica" To: Subject: Organizacion y Conservacion de Archivos Date: Thu, 14 Aug 2014 00:47:00 -0500 X-ASG-Orig-Subj: Organizacion y Conservacion de Archivos MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=SPLITOR00A_001_390063282D" X-Barracuda-Connect: mail4.empresanacionalmx.info[66.36.250.4] X-Barracuda-Start-Time: 1407995245 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.54 X-Barracuda-Spam-Status: No, SCORE=0.54 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_FONT_LOW_CONTRAST, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8427 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.54 HTML_FONT_LOW_CONTRAST BODY: HTML font color similar to background 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format. ------=SPLITOR00A_001_390063282D Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 Organizaci=C3=B3n y Conservaci=C3=B3n de Archivos y Documentos de la = Administraci=C3=B3n P=C3=BAblica / 18 de septiembre, M=C3=A9xico, D.F=2E =20 Durante este periodo las dependencias, entidades y organismos del sector = p=C3=BAblico deben actualizar sus instrumentos de descripci=C3=B3n = archiv=C3=ADstica y adecuarlos, en su caso, a los modelos establecidos por = el Archivo General de la Naci=C3=B3n. Por otra parte, la normatividad en = materia de acceso a la informaci=C3=B3n p=C3=BAblica requiere mantener una = congruencia con la estructura funcional de las dependencias y las acciones = propuestas en sus planes de desarrollo y programas institucionales, mismos = que ser=C3=A1n materia de revisi=C3=B3n por parte de las instancias = fiscalizadoras y los =C3=B3rganos de control=2E Este oportuno programa le ofrece la informaci=C3=B3n que usted necesita = para coordinar e implementar un sistema funcional y unificado de los = archivos de su dependencia, incluyendo: C=C3=B3mo poner en marcha el proceso de modernizaci=C3=B3n de archivos y = documentos p=C3=BAblicos en su instituci=C3=B3n.=20 Lineamientos para la clasificaci=C3=B3n de la informaci=C3=B3n y manejo de = los archivos de tr=C3=A1mite, concentraci=C3=B3n e hist=C3=B3rico.=20 Los archivos y documentos en el contexto de la Ley de Transparencia y = Acceso a la Informaci=C3=B3n P=C3=BAblica=2E Adquiera informaci=C3=B3n completa (temario, precios, rese=C3=B1a del = instructor), s=C3=B3lo responda con la palabra "Doc" + Nombre + = Tel=C3=A9fono=2E Mayores Informes e inscripci=C3=B3n, llame..=2E l=C3=ADnea directa: 01 800 212 0660=2E Atte: Abraham Rementer=C3=ADa Demasiados boletines xfs@oss.sgi.com para ya no recibirlos simplemente = env=C3=ADe un correo con asunto (END3) ------=SPLITOR00A_001_390063282D Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

 

Organizaci=C3=B3n y Conservaci=C3=B3n de = Archivos y Documentos de=20 la Administraci=C3=B3n P=C3=BAblica / 18 de=20 septiembre, M=C3=A9xico, = D.F. 

Durante este periodo las dependencias, entidades y=20 organismos del sector p=C3=BAblico deben actualizar sus=20 instrumentos de descripci=C3=B3n archiv=C3=ADstica y = adecuarlos, en su=20 caso, a los modelos establecidos por el Archivo General = de la=20 Naci=C3=B3n. Por otra parte, la normatividad en materia = de acceso a=20 la informaci=C3=B3n p=C3=BAblica requiere mantener una = congruencia con=20 la estructura funcional de las dependencias y las = acciones=20 propuestas en sus planes de desarrollo y programas=20 institucionales, mismos que ser=C3=A1n materia de = revisi=C3=B3n por=20 parte de las instancias fiscalizadoras y los = =C3=B3rganos de=20 control.1474412

Este oportuno programa le ofrece la informaci=C3=B3n = que usted=20 necesita para coordinar e implementar un sistema = funcional y=20 unificado de los archivos de su dependencia, = incluyendo:

  • C=C3=B3mo poner en marcha el proceso de = modernizaci=C3=B3n de=20 archivos y documentos p=C3=BAblicos en su = instituci=C3=B3n.=20
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Mayores = Informes e=20 inscripci=C3=B3n, llame...
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------=SPLITOR00A_001_390063282D-- From david@fromorbit.com Thu Aug 14 01:14:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DB5C97F3F for ; Thu, 14 Aug 2014 01:14:56 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id C596A304032 for ; Wed, 13 Aug 2014 23:14:53 -0700 (PDT) X-ASG-Debug-ID: 1407996887-04cbb0508d134f00001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id EL7O8W6p3wFyEuTu for ; Wed, 13 Aug 2014 23:14:48 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: As4UAMRS7FN5LDJ8PGdsb2JhbABagw2BKYIqhQenQwEBAQMGoDmFawGBERcFAQEBATg2hAMBAQQBJxMcERIFCwgDDgoJJQ8FJQMHGgoJiDoHxyQXGIVkiVAHhEwFnDiYbSsv Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 14 Aug 2014 15:44:46 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XHoJA-0006yo-Um; Thu, 14 Aug 2014 16:14:44 +1000 Date: Thu, 14 Aug 2014 16:14:44 +1000 From: Dave Chinner To: Brian Foster Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140814061444.GH20518@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140806152042.GB39990@bfoster.bfoster> <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> <20140813125932.GA4605@bfoster.bfoster> <20140813205929.GE20518@dastard> <20140813232135.GB8456@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140813232135.GB8456@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1407996887 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8427 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Wed, Aug 13, 2014 at 07:21:35PM -0400, Brian Foster wrote: > On Thu, Aug 14, 2014 at 06:59:29AM +1000, Dave Chinner wrote: > > On Wed, Aug 13, 2014 at 08:59:32AM -0400, Brian Foster wrote: > > > Perhaps I'm missing some context... I don't follow how removing the > > > error check doesn't solve the problem. It clearly closes the race and > > > perhaps there are other means of doing the same thing, but what part of > > > the problem does that leave unresolved? > > > > Anything that does: > > > > xfs_buf_iorequest(bp); > > if (bp->b_error) > > xfs_buf_relse(bp); > > > > is susceptible to the same race condition. based on bp->b_error > > being set asynchronously and before the buffer IO completion > > processing is complete. > > > > Understood, by why would anything do that (as opposed to > xfs_buf_iowait())? I don't see that we do that anywhere today > (the check buried within xfs_buf_iowait() notwithstanding of course). "Why" is not important - the fact is the caller *owns* the buffer and so the above fragment of code is valid behaviour. If there is an error on the buffer after xfs_buf_iorequest() request returns on a synchronous IO, then it's a bug if there is still IO in progress on that buffer. We can't run IO completion synchronously from xfs_buf_bio_end_io in this async dispatch error case - we cannot detect it as any different from IO completion in interrupt context - and so we need to have some kind of reference protecting the buffer from being freed from under the completion. i.e. the bug is that a synchronous buffer has no active reference while it is sitting on the completion workqueue - it's references are owned by other contexts that can drop them without regard to the completion status of the buffer. For async IO we transfer a reference and the lock to the IO context, which gets dropped in xfs_buf_iodone_work when all the IO is complete. Synchronous IO needs this protection, too. As a proof of concept, adding this to the start of xfs_buf_iorequest(): + /* + * synchronous IO needs it's own reference count. async IO + * inherits the submitter's reference count. + */ + if (!(bp->b_flags & XBF_ASYNC)) + xfs_buf_hold(bp); And this to the synchronous IO completion case for xfs_buf_iodone_work(): else { ASSERT(read && bp->b_ops); complete(&bp->b_iowait); + xfs_buf_rele(bp); } Should ensure that all IO carries a reference count and the buffer cannot be freed until all IO processing has been completed. This means it does not matter what the buffer owner does after xfs_buf_iorequest() - even unconditionally calling xfs_buf_relse() will not result in use-after-free as the b_hold count will not go to zero until the IO completion processing has been finalised. Fixing the rest of the mess (i.e. determining how to deal with submission/completion races) is going to require more effort and thought. For the moment, though, correctly reference counting buffers will solve the use-after-free without changing any other behaviour. > From what I can see, all it really guarantees is that the submission has > either passed/failed the write verifier, yes? No. It can also mean it wasn't rejected by the lower layersi as they process the bio passed by submit_bio(). e.g. ENODEV, because the underlying device has been hot-unplugged, EIO because the buffer is beyond the end of the device, etc. > > > It looks like submit_bio() manages this by providing the error through > > > the callback (always). It also doesn't look like submission path is > > > guaranteed to be synchronous either (consider md, which appears to use > > > workqueues and kernel threads)), so I'm not sure that '...; > > > xfs_buf_iorequest(bp); if (bp->b_error)' is really safe anywhere unless > > > you're explicitly looking for a write verifier error or something and > > > do nothing further on the buf contingent on completion (e.g., freeing it > > > or something it depends on). > > > > My point remains that it *should be safe*, and the intent is that > > the caller should be able to check for submission errors without > > being exposed to a use after free situation. That's the bug we need > > to fix, not say "you can't check for submission errors on > > synchronous IO" to avoid the race condition..... > > > > Well, technically you can check for submission errors on sync I/O, just > use the code you posted above. :) What we can't currently do is find out > when the I/O subsystem is done with the buffer. By definition, a buffer marked with an error after submission processing is complete. It should not need to be waited on, and there-in lies the bug. > Perhaps the point here is around the semantics of xfs_buf_iowait(). With > a mechanism that is fundamentally async, the sync variant obviously > becomes the async mechanism + some kind of synchronization. I'd expect > that synchronization to not necessarily just tell me whether an error > occurred, but also tell me when the I/O subsystem is done with the > object I've passed (e.g., so I'm free to chuck it, scribble over it, put > it back where I got it, whatever). > > My impression is that's the purpose of the b_iowait mechanism. > Otherwise, what's the point of the whole > bio_end_io->buf_ioend->b_iodone->buf_ioend round trip dance? Yes, that's exactly what xfs_buf_iorequest/xfs_buf_iowait() provides and the b_error indication is an integral part of that synchronisation mechanism. Unfortunately, that is also the part of the mechanism that is racy and causing problems. Cheers, Dave. -- Dave Chinner david@fromorbit.com From rahul@fly102.magizz.com Thu Aug 14 01:36:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.4 required=5.0 tests=HTML_IMAGE_ONLY_32, HTML_IMAGE_RATIO_02,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CB2E97F3F for ; Thu, 14 Aug 2014 01:36:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 8E9CB8F8037 for ; Wed, 13 Aug 2014 23:36:11 -0700 (PDT) X-ASG-Debug-ID: 1407998168-04cb6c4c9510f720001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id ZL9bmOyEKfG7po0T (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 13 Aug 2014 23:36:09 -0700 (PDT) X-Barracuda-Envelope-From: rahul@fly102.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=fly102.magizz.com; s=default; h=Content-Transfer-Encoding:Content-Type:List-Unsubscribe:MIME-Version:Reply-To:From:Date:Message-ID:Subject:To; bh=k8mOCbKQdaYlJqqfhLxqS8Fs5PrsTAeuWhpe1bszLYw=; b=eXxHEqYq2ifEOXqcAqD+zKaw50Z+weHqkD+RHuPzTGeonRPaHBOfHpGAH/j0Bs6EGfVBI1epucZ5H4BSKV3yBOhKOJqU0/RSmqnwLyXwICc5ACFnah4zBMCl7XFbDZp5aDK31oOW/QvExE3ORtCe0EsSWJa/Er7RaBCPA5qjtqI=; Received: from fly102magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XHodv-0006Rr-Fa for xfs@oss.sgi.com; Thu, 14 Aug 2014 10:36:11 +0400 To: xfs@oss.sgi.com Subject: Get your friends on LINE and win a trip to Bangkok Message-ID: X-ASG-Orig-Subj: Get your friends on LINE and win a trip to Bangkok Date: Thu, 14 Aug 2014 06:00:10 +0000 From: "LINE Friend Converter" Reply-To: rahul@fly102.magizz.com MIME-Version: 1.0 X-Mailer-LID: 12 List-Unsubscribe: X-Mailer-RecptId: 109415 X-Mailer-SID: 24 X-Mailer-Sent-By: 2 Content-Type: multipart/alternative; charset="UTF-8"; boundary="b1_fc181f13a79afd4e6f7839f4d6a6bd75" Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [508 518] / [47 12] X-AntiAbuse: Sender Address Domain - fly102.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: fly102magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1407998169 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.35 X-Barracuda-Spam-Status: No, SCORE=1.35 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA424, DKIM_SIGNED, DKIM_VERIFIED, HTML_IMAGE_ONLY_32, HTML_IMAGE_RATIO_02, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8427 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_IMAGE_ONLY_32 BODY: HTML: images with 2800-3200 bytes of words 0.55 HTML_IMAGE_RATIO_02 BODY: HTML has a low ratio of text to image area 0.00 HTML_MESSAGE BODY: HTML included in message 0.80 BSF_SC0_SA424 Custom Rule SA424 --b1_fc181f13a79afd4e6f7839f4d6a6bd75 Content-Type: text/plain; format=flowed; charset="UTF-8" Content-Transfer-Encoding: 8bit Your email client cannot read this email. 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Click here to unsubscribe --b1_fc181f13a79afd4e6f7839f4d6a6bd75-- From bfoster@redhat.com Thu Aug 14 14:05:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DC23A7F3F for ; Thu, 14 Aug 2014 14:05:30 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id C542C304032 for ; Thu, 14 Aug 2014 12:05:27 -0700 (PDT) X-ASG-Debug-ID: 1408043126-04cbb054860a870001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id kN11EPzZBM7X0ctl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 14 Aug 2014 12:05:26 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7EJ5OqE021202 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Aug 2014 15:05:24 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7EJ5NqN011984; Thu, 14 Aug 2014 15:05:23 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 186F112577C; Thu, 14 Aug 2014 15:05:22 -0400 (EDT) Date: Thu, 14 Aug 2014 15:05:22 -0400 From: Brian Foster To: Dave Chinner Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140814190521.GA51682@bfoster.bfoster> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> <20140813125932.GA4605@bfoster.bfoster> <20140813205929.GE20518@dastard> <20140813232135.GB8456@laptop.bfoster> <20140814061444.GH20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140814061444.GH20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408043126 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 14, 2014 at 04:14:44PM +1000, Dave Chinner wrote: > On Wed, Aug 13, 2014 at 07:21:35PM -0400, Brian Foster wrote: > > On Thu, Aug 14, 2014 at 06:59:29AM +1000, Dave Chinner wrote: > > > On Wed, Aug 13, 2014 at 08:59:32AM -0400, Brian Foster wrote: > > > > Perhaps I'm missing some context... I don't follow how removing the > > > > error check doesn't solve the problem. It clearly closes the race and > > > > perhaps there are other means of doing the same thing, but what part of > > > > the problem does that leave unresolved? > > > > > > Anything that does: > > > > > > xfs_buf_iorequest(bp); > > > if (bp->b_error) > > > xfs_buf_relse(bp); > > > > > > is susceptible to the same race condition. based on bp->b_error > > > being set asynchronously and before the buffer IO completion > > > processing is complete. > > > > > > > Understood, by why would anything do that (as opposed to > > xfs_buf_iowait())? I don't see that we do that anywhere today > > (the check buried within xfs_buf_iowait() notwithstanding of course). > > "Why" is not important - the fact is the caller *owns* the buffer > and so the above fragment of code is valid behaviour. If there is > an error on the buffer after xfs_buf_iorequest() request returns on > a synchronous IO, then it's a bug if there is still IO in progress > on that buffer. > A buffer can consist of multiple I/Os, yes? If so, then it seems quite possible for one I/O to fail and set an error on the buffer while another might still be in progress. I don't see how that can be considered a bug in general. Even if not, I'd expect to see a comment explaining why any code fragment such as the above is not broken because that's not deterministic at all, even with a single I/O. E.g., the error could very well have been set by the callback where we clearly continue I/O processing so-to-speak (though we could consider where we currently set the error in the callback sequence a bug as well). > We can't run IO completion synchronously from xfs_buf_bio_end_io in > this async dispatch error case - we cannot detect it as any > different from IO completion in interrupt context - and so we need > to have some kind of reference protecting the buffer from being > freed from under the completion. > Indeed. > i.e. the bug is that a synchronous buffer has no active reference > while it is sitting on the completion workqueue - it's references > are owned by other contexts that can drop them without regard to > the completion status of the buffer. > > For async IO we transfer a reference and the lock to the IO context, > which gets dropped in xfs_buf_iodone_work when all the IO is > complete. Synchronous IO needs this protection, too. > > As a proof of concept, adding this to the start of > xfs_buf_iorequest(): > > + /* > + * synchronous IO needs it's own reference count. async IO > + * inherits the submitter's reference count. > + */ > + if (!(bp->b_flags & XBF_ASYNC)) > + xfs_buf_hold(bp); > > And this to the synchronous IO completion case for > xfs_buf_iodone_work(): > > else { > ASSERT(read && bp->b_ops); > complete(&bp->b_iowait); > + xfs_buf_rele(bp); > } > > Should ensure that all IO carries a reference count and the buffer > cannot be freed until all IO processing has been completed. > > This means it does not matter what the buffer owner does after > xfs_buf_iorequest() - even unconditionally calling xfs_buf_relse() > will not result in use-after-free as the b_hold count will not go to > zero until the IO completion processing has been finalised. > Makes sense, assuming we handle the possible error cases and whatnot therein. Thinking some more, suppose we take this ref, submit one I/O successfully and a subsequent fails. Then who is responsible for releasing the reference? > Fixing the rest of the mess (i.e. determining how to deal with > submission/completion races) is going to require more effort and > thought. For the moment, though, correctly reference counting > buffers will solve the use-after-free without changing any > other behaviour. > > > From what I can see, all it really guarantees is that the submission has > > either passed/failed the write verifier, yes? > > No. It can also mean it wasn't rejected by the lower layersi as > they process the bio passed by submit_bio(). e.g. ENODEV, because > the underlying device has been hot-unplugged, EIO because the > buffer is beyond the end of the device, etc. > Those are the errors that happen to be synchronously processed today. That's an implementation detail. submit_bio() is an asynchronous interface so I don't see any guarantee that will always be the case. E.g., that's easily broken should somebody decide to defer early end_io processing to a workqueue. We do a similar thing ourselves for the reasons you've stated above. I don't see anything in or around submit_bio() or generic_make_request() that suggest the interface is anything but async. From generic_make_request(): /** ... * generic_make_request() does not return any status. The * success/failure status of the request, along with notification of * completion, is delivered asynchronously through the bio->bi_end_io * function described (one day) else where. * ... */ > > > > It looks like submit_bio() manages this by providing the error through > > > > the callback (always). It also doesn't look like submission path is > > > > guaranteed to be synchronous either (consider md, which appears to use > > > > workqueues and kernel threads)), so I'm not sure that '...; > > > > xfs_buf_iorequest(bp); if (bp->b_error)' is really safe anywhere unless > > > > you're explicitly looking for a write verifier error or something and > > > > do nothing further on the buf contingent on completion (e.g., freeing it > > > > or something it depends on). > > > > > > My point remains that it *should be safe*, and the intent is that > > > the caller should be able to check for submission errors without > > > being exposed to a use after free situation. That's the bug we need > > > to fix, not say "you can't check for submission errors on > > > synchronous IO" to avoid the race condition..... > > > > > > > Well, technically you can check for submission errors on sync I/O, just > > use the code you posted above. :) What we can't currently do is find out > > when the I/O subsystem is done with the buffer. > > By definition, a buffer marked with an error after submission > processing is complete. It should not need to be waited on, and > there-in lies the bug. > I suppose that implicates the error processing on the callback side. We set the error and continue processing on the buffer. Another option could be to shuffle that around on the callback side, but to me _that_ is an approach that narrowly avoids the race rather than closing it via use of synchronization. > > Perhaps the point here is around the semantics of xfs_buf_iowait(). With > > a mechanism that is fundamentally async, the sync variant obviously > > becomes the async mechanism + some kind of synchronization. I'd expect > > that synchronization to not necessarily just tell me whether an error > > occurred, but also tell me when the I/O subsystem is done with the > > object I've passed (e.g., so I'm free to chuck it, scribble over it, put > > it back where I got it, whatever). > > > > My impression is that's the purpose of the b_iowait mechanism. > > Otherwise, what's the point of the whole > > bio_end_io->buf_ioend->b_iodone->buf_ioend round trip dance? > > Yes, that's exactly what xfs_buf_iorequest/xfs_buf_iowait() provides > and the b_error indication is an integral part of that > synchronisation mechanism. Unfortunately, that is also the part of > the mechanism that is racy and causing problems. > I don't see how b_iowait itself is racy. It completes when the I/O completes. The problem is that we've overloaded these mechanisms to where we attempt to use them for multiple things. b_error can be a submission error or a deeper I/O error. Adding the b_error check to xfs_buf_iowait() converts it to the same "has a submission error occurred? or has any error occurred yet? or wait until all buffer I/O is complete" non-deterministic semantics. I agree that the reference count protection for sync I/O sounds useful and closes a gap (need to think about that some more), but to check for an error as part of the synchronization mechanism means that the mechanism simply isn't synchronous. I don't see any paths outside of I/O submission itself that care significantly about one general form of error (submission) vs. another (async I/O error) as opposed to simply whether an error has occurred or not. The fact that an error _can_ occur at any time until all of the outstanding bios are completed overrides the fact that some might occur by the time submission completes, meaning we have to handle the former for any callers that care about errors in general. Waiting on b_iowait before checking b_error is an always-safe way to do that. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From bfoster@redhat.com Thu Aug 14 14:09:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 06F2C7F47 for ; Thu, 14 Aug 2014 14:09:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B4717304032 for ; Thu, 14 Aug 2014 12:09:24 -0700 (PDT) X-ASG-Debug-ID: 1408043363-04bdf018540c070001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id QTzRLESBNkAEdGM5 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 14 Aug 2014 12:09:23 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7EJ9Kgm005999 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Aug 2014 15:09:21 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7EJ9KFK017741; Thu, 14 Aug 2014 15:09:20 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E067512577C; Thu, 14 Aug 2014 15:09:18 -0400 (EDT) Date: Thu, 14 Aug 2014 15:09:18 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Message-ID: <20140814190918.GB51682@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> <1407523766-62233-3-git-send-email-bfoster@redhat.com> <20140813154229.GB4426@laptop.bfoster> <20140814031136.GG20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140814031136.GG20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408043363 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 14, 2014 at 01:11:36PM +1000, Dave Chinner wrote: > On Wed, Aug 13, 2014 at 11:42:29AM -0400, Brian Foster wrote: > > On Fri, Aug 08, 2014 at 02:49:26PM -0400, Brian Foster wrote: > > > A file collapse stress test workload reproduces collapse failures > > > mid-operation due to changes in the inode fork extent count across > > > extent shift cycles. xfs_collapse_file_space() currently calls > > > xfs_bmap_shift_extents() to shift one extent at a time per transaction. > > > The extent index is used to track the next extent to shift after each > > > iteration. > > Right, it does so after writing back all the dirty pages and > invalidating the cache. This is done under the IOLOCK_EXCL, so we > should end up with nothing being able to newly dirty the inode while > the collapse range operation is in progress. > > > > > > A concurrent fsx and fsstress workload reproduces a scenario where the > > > extent count changes during this sequence, causing the 'current_ext' > > > index to become inaccurate and possibly skip shifting an extent. The > > > likely result of this behavior is the subsequent shift attempt will not > > > find a hole in the area of the skipped extent and fail, leaving the file > > > in a partially collapsed state. > > > > > > This occurs because the ilock is released and acquired across each > > > transaction and each individual extent shift. Tracepoint output shows > > > that once the ilock is released after an extent shift, a pending > > > blocking writeback (e.g., sync) can acquire the lock and proceed before > > > the next extent is shifted down. If the writeback converts part of a > > > delayed allocation earlier in the file, for example, it can insert a new > > > extent into the map. Tracing confirms a call to > > > xfs_bmap_add_extent_delay_real() in this particular instance. > > Are we getting a dirty extent in the range being collapsed, or does > it exist outside the range being shifted? If outside, then shouldn't > we just sync the entire file first? i.e. treat it the same way as we > do xfs_swap_extents()? > The dirty extent is prior to the range being collapsed, presumably already dirty by the time we acquire the iolock. The free space portion of the collapse currently only syncs from the start of the range to EOF. Syncing the entire file is something I was planning to experiment with, particularly since it seems like the remaining failure I mentioned in the series intro appears to be related to hitting a delalloc extent during the collapse. I don't yet know how that occurs, but my last test dumped enough trace data to show a startblock value that includes the mask used for delalloc extents. The collapse attempts to look up an extent in the bmap btree with these values and falls over when it's not found. > Realistically, cur_extent is not valid once we drop the ILOCK. > Perhaps we should keep the offset of the extent we are up to in the > shift, and then look up the offset to get current extent map index > once we pick the ILOCK back up. That way we avoid issues with other > parts of the extent map changing between ILOCK hold contexts. > I noticed that one or more of the other bmap functions do something like this. Unless there's some other reason that we don't want to drop ilock here, that sounds like a safer approach. Thanks. > > > To prevent this scenario, hold the ilock across the entire extent shift > > > loop in xfs_collapse_file_space(). > > > > > > Signed-off-by: Brian Foster > > > --- > > > fs/xfs/xfs_bmap_util.c | 5 +++-- > > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > > > index 2f1e30d..96eb97b 100644 > > > --- a/fs/xfs/xfs_bmap_util.c > > > +++ b/fs/xfs/xfs_bmap_util.c > > > @@ -1474,6 +1474,8 @@ xfs_collapse_file_space( > > > if (error) > > > return error; > > > > > > + xfs_ilock(ip, XFS_ILOCK_EXCL); > > > + > > > > I realized this moves the lock outside of the xfs_trans_reserve(), thus > > opening a potential deadlock scenario with regard to the log. I suppose > > this might be harder to hit in real life than a sync() causing the > > operation to fall over mid-sequence, so I'm still Ok with keeping this > > unless anybody objects. > > We can't do that. Inode locking rules explicitly forbid it - we've > avoided needing to do break this rule for 20 years, so let's not > start making exceptions now just because it's a "simple fix". > Sounds good, let's drop this one then and I'll revisit it. Are we still Ok with the first patch? I think that one is still warranted since it limits the current flaws of collapse to the collapse operation itself. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From david@fromorbit.com Thu Aug 14 17:28:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4DAFC7F3F for ; Thu, 14 Aug 2014 17:28:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id DB239AC001 for ; Thu, 14 Aug 2014 15:28:17 -0700 (PDT) X-ASG-Debug-ID: 1408055291-04bdf0185515210001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id W4YXFJDFPeYHKsCI for ; Thu, 14 Aug 2014 15:28:11 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtMGAGE37VN5LDJ8/2dsb2JhbABagw2BKq8QAQEBAQEBBqYlAYEXF3eEAwEBBAEnExwjBQsIAw4KCSUPBSUDIROIOgfFLhcYhWSJUAeETAEEnDiUf4NuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 15 Aug 2014 07:58:09 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XI3Uy-0000fF-Q0; Fri, 15 Aug 2014 08:27:56 +1000 Date: Fri, 15 Aug 2014 08:27:56 +1000 From: Dave Chinner To: Brian Foster Cc: Alex Lyakas , xfs@oss.sgi.com Subject: Re: use-after-free on log replay failure Message-ID: <20140814222756.GR26465@dastard> X-ASG-Orig-Subj: Re: use-after-free on log replay failure References: <20140811132057.GA1186@bfoster.bfoster> <20140811215207.GS20518@dastard> <20140812120341.GA46654@bfoster.bfoster> <20140812235615.GB20518@dastard> <20140813125932.GA4605@bfoster.bfoster> <20140813205929.GE20518@dastard> <20140813232135.GB8456@laptop.bfoster> <20140814061444.GH20518@dastard> <20140814190521.GA51682@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140814190521.GA51682@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408055291 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8450 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words On Thu, Aug 14, 2014 at 03:05:22PM -0400, Brian Foster wrote: > On Thu, Aug 14, 2014 at 04:14:44PM +1000, Dave Chinner wrote: > > On Wed, Aug 13, 2014 at 07:21:35PM -0400, Brian Foster wrote: > > > On Thu, Aug 14, 2014 at 06:59:29AM +1000, Dave Chinner wrote: > > > > On Wed, Aug 13, 2014 at 08:59:32AM -0400, Brian Foster wrote: > > > > > Perhaps I'm missing some context... I don't follow how removing the > > > > > error check doesn't solve the problem. It clearly closes the race and > > > > > perhaps there are other means of doing the same thing, but what part of > > > > > the problem does that leave unresolved? > > > > > > > > Anything that does: > > > > > > > > xfs_buf_iorequest(bp); > > > > if (bp->b_error) > > > > xfs_buf_relse(bp); > > > > > > > > is susceptible to the same race condition. based on bp->b_error > > > > being set asynchronously and before the buffer IO completion > > > > processing is complete. > > > > > > > > > > Understood, by why would anything do that (as opposed to > > > xfs_buf_iowait())? I don't see that we do that anywhere today > > > (the check buried within xfs_buf_iowait() notwithstanding of course). > > > > "Why" is not important - the fact is the caller *owns* the buffer > > and so the above fragment of code is valid behaviour. If there is > > an error on the buffer after xfs_buf_iorequest() request returns on > > a synchronous IO, then it's a bug if there is still IO in progress > > on that buffer. > > > > A buffer can consist of multiple I/Os, yes? If so, then it seems quite > possible for one I/O to fail and set an error on the buffer while > another might still be in progress. I don't see how that can be > considered a bug in general. You miss my point. We have to mark the buffer with an error, but it should not be visible to the submitter until all IO on the buffer is done. i.e. setting bp->b_error from the completion path needs to be deferred until xfs_buf_iodone_work() is run after all submitted IOs on the buffer have completed. > Even if not, I'd expect to see a comment explaining why any code > fragment such as the above is not broken because that's not > deterministic at all, even with a single I/O. E.g., the error could very > well have been set by the callback where we clearly continue I/O > processing so-to-speak (though we could consider where we currently set > the error in the callback sequence a bug as well). Chicken, meet Egg. There's no comment saying the above code is OK or not because we assume that if we hold the buffer lock it is safe to look at any state on the buffer at any time. What this thread points out is that synchronous IO changes the state of the buffer in a context that does not hold the buffer lock, and so violates that assumption. > > This means it does not matter what the buffer owner does after > > xfs_buf_iorequest() - even unconditionally calling xfs_buf_relse() > > will not result in use-after-free as the b_hold count will not go to > > zero until the IO completion processing has been finalised. > > > > Makes sense, assuming we handle the possible error cases and whatnot > therein. Thinking some more, suppose we take this ref, submit one I/O > successfully and a subsequent fails. Then who is responsible for > releasing the reference? xfs_buf_iodone_work() doesn't run until b_io_remaining goes to zero. That's the context that releases the ref. It doesn't matter how many are submitted, complete successfully or fail. > > Fixing the rest of the mess (i.e. determining how to deal with > > submission/completion races) is going to require more effort and > > thought. For the moment, though, correctly reference counting > > buffers will solve the use-after-free without changing any > > other behaviour. > > > > > From what I can see, all it really guarantees is that the submission has > > > either passed/failed the write verifier, yes? > > > > No. It can also mean it wasn't rejected by the lower layersi as > > they process the bio passed by submit_bio(). e.g. ENODEV, because > > the underlying device has been hot-unplugged, EIO because the > > buffer is beyond the end of the device, etc. > > > > Those are the errors that happen to be synchronously processed today. > That's an implementation detail. submit_bio() is an asynchronous > interface so I don't see any guarantee that will always be the case. > E.g., that's easily broken should somebody decide to defer early end_io > processing to a workqueue. We do a similar thing ourselves for the > reasons you've stated above. > > I don't see anything in or around submit_bio() or generic_make_request() > that suggest the interface is anything but async. From > generic_make_request(): > > /** > ... > * generic_make_request() does not return any status. The > * success/failure status of the request, along with notification of > * completion, is delivered asynchronously through the bio->bi_end_io > * function described (one day) else where. > * > ... > */ Delivery of the error is through bio->bi_end_io, but that is not necessarily from an asynchronous context. e.g. the first thing that generic_make_request() does is run generic_make_request_checks(), where a failure runs bio_endio() and therefore bio->bi_end_io() in the submitter's context. i.e. *synchronously*. This is exactly what the b_io_remaining reference owned by xfs_buf_iorequest() is being taken for - to prevent the *XFS endio processing* from being run asynchronously. > > > > > It looks like submit_bio() manages this by providing the error through > > > > > the callback (always). It also doesn't look like submission path is > > > > > guaranteed to be synchronous either (consider md, which appears to use > > > > > workqueues and kernel threads)), so I'm not sure that '...; > > > > > xfs_buf_iorequest(bp); if (bp->b_error)' is really safe anywhere unless > > > > > you're explicitly looking for a write verifier error or something and > > > > > do nothing further on the buf contingent on completion (e.g., freeing it > > > > > or something it depends on). > > > > > > > > My point remains that it *should be safe*, and the intent is that > > > > the caller should be able to check for submission errors without > > > > being exposed to a use after free situation. That's the bug we need > > > > to fix, not say "you can't check for submission errors on > > > > synchronous IO" to avoid the race condition..... > > > > > > > > > > Well, technically you can check for submission errors on sync I/O, just > > > use the code you posted above. :) What we can't currently do is find out > > > when the I/O subsystem is done with the buffer. > > > > By definition, a buffer marked with an error after submission > > processing is complete. It should not need to be waited on, and > > there-in lies the bug. > > I suppose that implicates the error processing on the callback side. We > set the error and continue processing on the buffer. Another option > could be to shuffle that around on the callback side, but to me _that_ > is an approach that narrowly avoids the race rather than closing it via > use of synchronization. We need to store the error from the callback somewhere, until b_io_remaining falls to zero. Right now we are putting it in b_error, which makes it immediately visible to the submitter without any synchronisation. Basically, we can't put state into anything that the submitter is expected to check. We have internal state fields that are not to be used externally: spinlock_t b_lock; /* internal state lock */ unsigned int b_state; /* internal state flags */ So what we probably need to do is add an internal: int b_io_error; /* internal error state */ serialised by b_lock, where we stuff errors from xfs_buf_bio_end_io and then propagate them to b_error in xfs_buf_iodone_work() when all the IO is complete.... And with the extra reference count on the buffer, it doesn't matter if the submitter detects a submission error and releases it's reference to the buffer while there is still other IO in progress. Hence we solve all the issues without changing the current submit/wait semantics, or needing to remove the submission error check from xfs_buf_iowait. > I don't see any paths outside of I/O submission itself that care > significantly about one general form of error (submission) vs. another > (async I/O error) as opposed to simply whether an error has occurred or > not. The fact that an error _can_ occur at any time until all of the > outstanding bios are completed overrides the fact that some might occur > by the time submission completes, meaning we have to handle the former > for any callers that care about errors in general. Waiting on b_iowait > before checking b_error is an always-safe way to do that. Assuming there are no other bugs, it's "always safe". And that's the key thing - the fact that we actually have a check for an error before waiting indicates that it hasn't always been safe to wait on a buffer marked with a submission error. This code is full of cruft and mess. It's fully of history, band-aids upon band-aids, partially completed cleanups, left over complexity from times gone past and new complexity layered over the top of structures not originally designed to support those uses. Let's fix the use after free bug right away, and then clean up the cruft and fix the underlying problems so we can guarantee that "always-safe" behaviour an not have it blow up in our faces in future.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 14 17:30:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 69D6E7F53 for ; Thu, 14 Aug 2014 17:30:26 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5370B304032 for ; Thu, 14 Aug 2014 15:30:23 -0700 (PDT) X-ASG-Debug-ID: 1408055421-04cb6c55000f8b0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id AoawsALVG74wVSLq for ; Thu, 14 Aug 2014 15:30:21 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtMGAGE37VN5LDJ8/2dsb2JhbABagw2BKq8QAQEBAQEBBqYlAYEXF3eEBAEFOhwjEAgDDgoJJQ8FJQMhE4hBxS4XGIVkiVAHhEwBBI8KjS6Uf4NuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 15 Aug 2014 08:00:20 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XI3X6-0000fS-1n; Fri, 15 Aug 2014 08:30:08 +1000 Date: Fri, 15 Aug 2014 08:30:08 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse Message-ID: <20140814223007.GS26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/2] xfs: hole the inode lock across a full file collapse References: <1407523766-62233-1-git-send-email-bfoster@redhat.com> <1407523766-62233-3-git-send-email-bfoster@redhat.com> <20140813154229.GB4426@laptop.bfoster> <20140814031136.GG20518@dastard> <20140814190918.GB51682@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140814190918.GB51682@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408055421 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8450 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 14, 2014 at 03:09:18PM -0400, Brian Foster wrote: > Sounds good, let's drop this one then and I'll revisit it. Are we still > Ok with the first patch? I think that one is still warranted since it > limits the current flaws of collapse to the collapse operation itself. The first patch looks fine. Cheers, Dave. -- Dave Chinner david@fromorbit.com From ekgeikc@fujitaec.or.jp Thu Aug 14 19:52:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 831ED7F50 for ; Thu, 14 Aug 2014 19:52:14 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5D9D2304032 for ; Thu, 14 Aug 2014 17:52:10 -0700 (PDT) X-ASG-Debug-ID: 1408063926-04cbb0548817540001-NocioJ Received: from mail.fujitaec.or.jp (fujitaec.or.jp [203.138.223.183]) by cuda.sgi.com with ESMTP id FXDTNhok60ntjG9V for ; Thu, 14 Aug 2014 17:52:07 -0700 (PDT) X-Barracuda-Envelope-From: ekgeikc@fujitaec.or.jp X-Barracuda-Apparent-Source-IP: 203.138.223.183 Received: from ezulcox 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X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8454 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- This is a multi-part message in MIME format. ------=ryulh576_5130_214774475.712531 Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: base64 SEQweDc5aw0KDQrOqsqyw7TP+srbyMvUsbGoz/q1xLfR08PUvcC01L2436OstavStbyoyLTUvcC0 1L2yu8Dtz+ujvw0KDQo4MDcxNDQ0ODY2NDI5Njc0ODEuMTg3LjIxNy4yMDc= ------=ryulh576_5130_214774475.712531 Content-Type: text/plain; name="bajouvov.txt" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="bajouvov.txt" =09 =09 <<=CF=FA=CA=DB=BE=AB=D3=A22=CC=EC=C7=BF=BB= =AF=D1=B5=C1=B7>> =09 =09 2014=C4=EA07=D4=C226-27=C8=D5 =C9=EE=DB=DA=A1=A208=D4=C202-03=C8= =D5 =C9=CF=BA=A3=A1=A208=D4=C216-17=C8=D5 =B1=B1=BE=A9=A1=A208=D4=C230= -31=C8=D5 =C9=EE=DB=DA =09 2014=C4=EA09=D4=C213-14=C8=D5 =C9=CF=BA=A3=A1=A209=D4=C227-28=C8= =D5 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5=A1=A2=B6=D4=BF=CD=BB=A7=B9=BA=C2=F2=B5=C4=D0=E8=C7=F3=BD=F8=D0=D0=C8= =B7=C8=CF=A3=BB =09 6=A1=A2=D3=EB=BF=CD=BB=A7=B9=B2=CD=AC=C8=B7=B6=A8=B2=C9=B9=BA=B5=C4=B1= =EA=D7=BC =09 =D7=F7=D2=B5=A3=BA=C8=E7=BA=CE=C9=E8=BC=C6=BF=CD=BB=A7=D0=E8=C7=F3=B7= =D6=CE=F6=CA=D6=B2=E1=A3=BF =09 =09 =B5=DA=B6=FE=D5=C2 =C8=E7=BA=CE=D5=FD=C8=B7=CD=C6=BC=F6=B2=FA=C6=B7 = =09 =B0=B8=C0=FD=A3=BA=CE=AA=CA=B2=C3=B4=CE=D2=C2=FA=D7=E3=BF=CD=BB=A7=CB= =F9=CC=E1=B3=F6=B5=C4=D2=AA=C7=F3=A3=AC=BF=CD=BB=A7=C8=B4=BB=B9=D0=E8= =D2=AA=BF=BC=C2=C7=D2=BB=CF=C2=A3=BF =09 =B0=B8=C0=FD=A3=BA=CE=AA=CA=B2=C3=B4=BF=CD=BB=A7=B2=BB=CF=E0=D0=C5=CE= =D2=D6=CA=C1=BF=D3=EB=B7=FE=CE=F1=B5=C4=B3=D0=C5=B5=A3=BF =09 =B5=DA=D2=BB=BD=DA =CE=AA=CA=B2=C3=B4=D0=E8=D2=AA=CE=D2=C3=C7=D5=FD=C8= =B7=B5=D8=CD=C6=BC=F6=B2=FA=C6=B7=A3=BF =09 =D2=BB=A1=A2=BF=CD=BB=A7=CD=F9=CD=F9=B6=D4=D7=D4=BC=BA=C9=EE=B2=E3=B4= =CE=B5=C4=CE=CA=CC=E2=B2=A2=B2=BB=C7=E5=B3=FE=A3=BB =09 =B6=FE=A1=A2=BF=CD=BB=A7=B5=C4=CC=E1=B3=F6=B5=C4=D2=AA=C7=F3=BF=C9=C4= =DC=CA=C7=C4=A3=BA=FD=BB=F2=B3=E9=CF=F3,=D3=D0=B5=C4=BD=F6=BD=F6=CC=E1= =B3=F6=B7=BD=CF=F2=A3=AC=B2=BB=D2=AA=BE=D6=CF=DE=D3=DA=BF=CD=BB=A7=C3= =F7=CF=D4=B5=C4=CE=CA=CC=E2,=CD=B7=CD=B4=D2=BD=CD=B7 =09 ,=BD=C5=CD=B4=D2=BD=BD=C5=A3=BB =09 =C8=FD=A1=A2=BF=CD=BB=A7=CD=F9=CD=F9=BB=E1=D2=D4=CE=D2=C3=C7=BE=BA=C6= =B7=B8=F8=CB=FB=B5=C4=CC=F5=BC=FE=D2=AA=C7=F3=CE=D2=C3=C7=A3=AC=CF=EB= =D2=AA=B5=C4=B2=BB=D2=BB=B6=A8=BE=CD=CA=C7=CB=FB=D0=E8=D2=AA=B5=C4 = =09 =CB=C4=A1=A2=C2=FA=D7=E3=BF=CD=BB=A7=CC=E1=B3=F6=B5=C4=D2=AA=C7=F3=A3= =AC=CA=C7=D2=FD=B5=BC=BF=CD=BB=A7=D4=DA=B2=BB=CD=AC=B9=AB=CB=BE=D6=AE= =BC=E4=D7=F6=B1=C8=BD=CF=A3=AC=B6=F8=B2=BB=D4=DA=CE=D2=B9=AB=CB=BE=D7= =F6=B3=F6=BE=F6=B2=DF=A3=BB =09 =CE=E5=A1=A2=BA=C3=B2=FA=C6=B7=A3=AC=B2=BB=D2=BB=B6=A8=CA=C7=D7=EE=CA= =CA=BA=CF=B5=C4=A3=AC=D7=EE=CA=CA=BA=CF=B5=C4=B2=FA=C6=B7=B2=C5=CA=C7= =D7=EE=BA=C3=B5=C4=A3=BA =09 1=A1=A2=CA=CA=B5=B1=B5=C4=CA=FD=C1=BF 2=A1=A2=CA=CA=B5=B1=B5=C4= =BC=DB=B8=F1 =09 3=A1=A2=CA=CA=BA=CF=B5=C4=CA=B1=BC=E4 4=A1=A2=CA=CA=B5=B1=B5=C4= =B5=D8=D6=B7 =09 5=A1=A2=CA=CA=B5=B1=B5=C4=D6=CA=C1=BF =09 =B0=B8=C0=FD=A3=BA=BF=CD=BB=A7=B9=D8=D0=C4=B5=C4=CA=C7=C4=E3=C8=E7=BA= =CE=B1=A3=D6=A4=C4=E3=B5=C4=D6=CA=C1=BF=BA=CD=C4=E3=B5=C4=B7=FE=CE=F1= =CB=AE=C6=BD =09 =09 =B5=DA=B6=FE=BD=DA =C8=E7=BA=CE=B0=EF=D6=FA=BF=CD=BB=A7=BD=A8=C1=A2=A1= =B0=C5=C5=CB=FB=D0=D4=A1=B1=B5=C4=B2=C9=B9=BA=B1=EA=D7=BC=A3=BF = =09 =CD=C6=BC=F6=B2=FA=C6=B7=D6=D0=B3=A3=D3=C3=B5=C434=CF=EE=C4=DA=C8=DD= =A3=BA=C6=B7=C5=C6=A1=A2=B3=C9=B1=BE=A1=A2=D6=CA=C1=BF=A1=A2=B9=A9=BB= =F5=C4=DC=C1=A6=A1=A2=B5=D8=C0=ED=CE=BB=D6=C3=A1=A2=CA=D0=B3=A1=B5=D8= =CE=BB=A1=A2=B3=C9=B9=A6=B0=B8=C0=FD=A1=A2=C9=FA=B2=FA =09 =BC=BC=CA=F5=D3=EB=C9=E8=B1=B8=A1=A2=BF=C9=BF=BF=D0=D4=A1=A2=D1=F9=C6= =B7=A1=A2=BC=BC=CA=F5=B7=FE=CE=F1=A1=A2=BD=BB=BB=F5=A1=AD =09 =09 =B5=DA=C8=FD=D5=C2 =C8=E7=BA=CE=D3=D0=D0=A7=B4=A6=C0=ED=D2=EC=D2=E9 = =09 =D2=BB=A1=A2=B6=D4=CA=C2=B2=BB=B6=D4=C8=CB=A3=AC=C4=E3=C8=E7=BA=CE=BF= =B4=B1=F0=C8=CB=A3=AC=B1=F0=C8=CB=BE=CD=BB=E1=C8=E7=BA=CE=BF=B4=C4=E3 = =09 =B0=B8=C0=FD=A3=BA=D3=F6=B5=BD=D0=A1=C6=F8=A1=A2=B9=CC=D6=B4=A1=A2=B4= =D6=C2=B3=A1=A2=86=AA=E0=C2=A1=A2=BF=CC=B1=A1=A1=A2=B4=B5=C3=AB=C7=F3= =B4=C3=A1=A2=D3=C5=C8=E1=B9=D1=B6=CF=B5=C4=BF=CD=BB=A7=D3=A6=B6=D4=A3= =BF =09 =B0=B8=C0=FD=A3=BA=BF=CD=BB=A7=D6=B1=BD=D3=B9=D2=B5=E7=BB=B0=A3=AC=D4= =F5=C3=B4=B0=EC=A3=BF =09 =B0=B8=C0=FD=A3=BA=B8=D5=BC=FB=C3=E6=A3=AC=BF=CD=BB=A7=BE=CD=B6=D4=CE= =D2=B7=A2=BB=F0=A3=AC=D4=F5=C3=B4=B0=EC=A3=BF =09 =09 =B6=FE=A1=A2=BF=CD=BB=A7=D2=EC=D2=E9=B4=A6=C0=ED=D2=AA=D3=D06=B8=F6=C7= =F8=B7=D6: =09 1=A1=A2=D2=AA=C7=F8=B7=D6=A1=B0=B5=DA=D2=BB=A1=B1 =BB=B9=CA=C7=A1=B0= =CE=A8=D2=BB=A1=B1 =09 2=A1=A2=B6=D4=BF=CD=BB=A7=D2=AA=C7=F3=B5=C4=D5=E6=CE=B1=BD=F8=D0=D0=BC= =F8=B1=F0; =09 3=A1=A2=D2=AA=C7=F8=B7=D6=A1=B0=C7=E9=D0=F7=A1=B1=BB=B9=CA=C7=A1=B0=D0= =D0=CE=AA=A1=B1 =09 4=A1=A2=C7=F8=B7=D6=A1=B0=BC=D9=CF=EB=A1=B1=BB=B9=CA=C7=A1=B0=CA=C2=CA= =B5=A1=B1 =09 5=A1=A2=C7=F8=B1=F0=CE=CA=CC=E2=B5=C4=C7=E1=D6=D8,=BB=BA=BC=B1; = =09 6=A1=A2=D0=C4=C0=EF=CF=EB=B5=C4=BA=CD=CA=B5=BC=CA=D7=F6. =09 =09 =C8=FD=A1=A2=C0=ED=BD=E2=BF=CD=BB=A7=B2=C9=B9=BA=B5=C4=D0=C4=CC=AC=A3= =BB =09 1=A1=A2=BF=CD=BB=A7=CC=B8=C5=D0=CA=B1=B3=A3=D3=C37=D6=D6=CA=D4=CC=BD= =BC=BC=C7=C9=B7=D6=CE=F6=A3=BB =09 2=A1=A2=CE=AA=CA=B2=C3=B4=D3=D0=D0=A9=BF=CD=BB=A7=B6=D4=CE=D2=C3=C7=CC= =AC=B6=C8=B7=C7=B3=A3=BA=C3=A3=AC=BF=C9=CA=C7=BE=CD=CA=C7=B2=BB=CF=C2= =B5=A5=A3=BF =09 3=A1=A2=CE=AA=CA=B2=C3=B4=D3=D0=D0=A9=BF=CD=BB=A7=C8=C3=CE=D2=C3=C7=B8= =D0=BE=F5=B8=DF=B8=DF=D4=DA=C9=CF=A3=AC=BB=A8=C7=AE=CA=C7=B4=F3=D2=AF= =A3=BF=C4=D1=B5=C0=CB=FB=C3=C7=CB=D8=D6=CA=D5=E6=B5=C4=B2=EE=A3=BF = =09 4=A1=A2=BF=CD=BB=A7=D7=D4=C9=ED=BB=E1=D3=D0=C4=C46=B8=F6=D1=B9=C1=A6= =A3=BF =09 =09 =B0=B8=C0=FD=A3=BA=BF=CD=BB=A7=CC=E1=B3=F6=BA=CF=C0=ED=CC=F5=BC=FE=A3= =AC=CA=C7=B7=F1=CE=D2=BE=CD=D3=A6=B8=C3=BD=B5=BC=DB=A3=BF =09 =B0=B8=C0=FD=A3=BA=C8=E7=BA=CE=B7=D6=C7=E5=BF=CD=BB=A7=D2=EC=D2=E9=B5= 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=D4=BC=BA=A3=AC=B1=ED=C0=EF=C8=E7=D2=BB =09 1=A1=A2=D1=DD=B1=F0=C8=CB,=D4=D9=BA=C3=B5=C4=D1=DD=BC=BC=D2=B2=BB=E1= =B8=E3=D4=D2=A3=AC=CF=EB=D7=F6=B1=F0=C8=CB=B5=C4=CA=B1=BA=F2,=C4=E3=BE= =CD=BB=E1=C0=EB=D7=D4=BC=BA=BA=DC=D4=B6=A3=BB =09 2=A1=A2=B2=BB=CD=AC=B5=C4=C8=CB,=D0=E8=C7=F3=B2=BB=CD=AC,=D4=BD=B8=C4= =D4=BD=C0=DB,=D4=BD=B8=C4=D4=BD=C6=F8,=D6=BB=BB=E1=B0=D1=D7=D4=BC=BA= =D5=DB=C4=A5=B5=C3=D0=C4=B8=A1=C6=F8=D4=EA,=B2=BB=B5=C3=C8=CB=D0=C4=A3= =BB =09 3=A1=A2=D2=D4=C5=F3=D3=D1=B5=C4=D0=C4=CC=AC=D3=EB=BF=CD=BB=A7=BD=BB=CD= =F9=A3=AC=B9=FD=B6=E0=B5=C4=C9=CC=D2=B5=BB=AF=D3=EF=D1=D4=A1=A2=D0=D0= =CE=AA=A1=A2=B9=FD=B6=E0=B5=C4=C0=F1=D2=C7=D6=BB=BB=E1=C8=C3=BF=CD=BB= =A7=B8=D0=BE=F5=B5=BD=C9=FA=D3=B2=A1=A2=BE=E0=C0=EB=A1=A2 =09 =C5=C5=B3=E2=A1=A2=B9=AB=CA=C2=B9=AB=B0=EC=A3=AC=C3=BB=D3=D0=B8=D0=C7= =E9=A3=BB =09 4=A1=A2=CA=CA=B5=B1=B5=C4=B1=A9=C2=B6=D7=D4=BC=BA=B5=C4=C8=B1=B5=E3=A3= =AC=D4=BD=CD=EA=C3=C0=B5=C4=C8=CB=D4=BD=B2=BB=BF=C9=D0=C5=A3=BB = =09 5=A1=A2=CA=D8=CA=B1,=CA=D8=D0=C5,=CA=D8=D4=BC,=BC=B0=CA=B1=B4=AB=B5=DD= =BD=F8=B3=CC=D3=EB=D0=C5=CF=A2=A3=AC=C8=C3=BF=CD=BB=A7=B8=D0=BE=F5=B5= =BD=BF=C9=BF=D8=D0=D4=A3=BB =09 =09 =B5=DA=B6=FE=BD=DA =B8=D0=D0=BB=C9=CB=BA=A6=CE=D2=B5=C4=C8=CB=A3=AC=CA= =C7=D2=F2=CE=AA=CE=D2=D7=D4=BC=BA=B4=ED=C1=CB=A3=BB =09 =B0=B8=C0=FD=A3=BA=BC=B0=CA=B1=B7=A2=CF=D6=BF=CD=BB=A7=B5=C4=C7=B1=D2= =E2=CA=B6=A3=BA =09 1=A1=A2=D2=BB=CE=B6=CB=B3=B4=D3:=B6=D4=CF=FA=CA=DB=C8=CB=D4=B1=C3=BF= =D2=BB=BE=E4=BB=B0=B6=BC=B1=ED=CA=BE=BE=F8=B6=D4=D4=DE=CD=AC; =09 2=A1=A2=CD=C6=D0=B6=D4=F0=C8=CE:=C8=CF=CE=AA=B6=BC=CA=C7=B1=F0=C8=CB= =B5=C4=D4=AD=D2=F2,=B6=F8=D3=EB=D7=D4=BC=BA=CE=DE=B9=D8; =09 3=A1=A2=C0=ED=C2=DB=BD=BB=CC=B8:=BF=CD=BB=A7=D3=C3=D7=A8=D2=B5=CA=F5= =D3=EF=D3=EB=D2=B5=CE=F1=D4=B1=CC=B8,=C7=B1=D2=E2=CA=B6=CA=C7=B6=D4=D2= =B5=CE=F1=D4=B1=BB=B3=D2=C9; =09 4=A1=A2=CC=B8=C2=DB=D0=A1=CA=C2:=BF=CD=BB=A7=B6=D4=BB=E1=CC=B8=D6=D0= =CE=DE=B9=D8=BD=F4=D2=AA=B5=C4=D0=A1=CA=C2=CC=B8=C2=DB=B2=BB=D6=B9; = =09 5=A1=A2=CE=DE=B3=CF=D0=C5:=B2=BB=B0=B4=D4=BC=B6=A8=B5=C4=CA=B1=BC=E4= =BC=FB=C3=E6,=BB=F2=BD=E8=B9=CA=B3=D9=B5=BD=BB=F2=D5=D2=C0=ED=D3=C9=D4= =E7=CD=CB,=B2=BB=B0=B4=D4=BC=B6=A8=D2=AA=C7=F3=CC=E1=B9=A9=D0=C5=CF=A2= =D7=CA=C1=CF,=B2=BB=B8=B6=BB=F2=D1=D3=B8=B6 =09 =B6=A9=BD=F0; =09 =09 =B5=DA=C8=FD=BD=DA =B0=DA=D5=FD=D7=D4=BC=BA=B5=C4=CE=BB=D6=C3 =09 1=A1=A2=C7=BF=CA=C6=CA=C7=CC=E5=CF=D6=D4=DA=B9=AB=CB=BE=D2=D4=BC=B0=B2= =FA=C6=B7=B1=BE=C9=ED=A3=AC=B6=F8=B2=BB=CA=C7=CC=E5=CF=D6=D4=DA=CF=FA= =CA=DB=C8=CB=D4=B1=B1=BE=C8=CB=A3=BB =09 2=A1=A2=C8=C3=B1=F0=C8=CB=B1=E4=B5=C3=CE=B0=B4=F3=A3=AC=B6=F8=B2=BB=CA= =C7=D7=D4=BC=BA=A3=AC=B2=BB=D2=AA=B1=E1=B5=CD=C8=CE=BA=CE=C8=CB=A3=BB = =09 3=A1=A2=B5=CD=B5=F7=CA=C7=D7=EE=C5=A3=B5=C4=EC=C5=D2=AB=A3=AC=B5=D8=B5= =CD=CE=AA=BA=A3=A3=AC=C8=CB=B5=CD=CE=AA=CD=F5=A3=BB =09 4=A1=A2=BB=E1=BF=DE=B5=C4=BA=A2=D7=D3=D3=D0=C4=CC=B3=D4=A3=AC=BB=E1=BF= =DE=B5=C4=C5=AE=C8=CB=D7=EE=B4=CF=C3=F7=A1=A3 =09 =09 =B0=B8=C0=FD=A3=BA=D7=D4=CE=D2=B1=A9=C2=B6=B5=C4=CB=C4=B8=F6=B2=E3=B4= =CE: =09 =B5=DA=D2=BB=B2=E3:=D0=CB=C8=A4=B0=AE=BA=C3=A1=A2=D2=FB=CA=B3=CF=B0=B9= =DF=A1=A2=C6=AB=BA=C3=B5=C8; =09 =B5=DA=B6=FE=B2=E3:=B6=D4=D6=DC=B1=DF=B5=C4=C8=CB(=B7=C7=BC=D2=C8=CB)= =BB=F2=CA=C2=B5=C4=BF=B4=B7=A8=A3=BB =09 =B5=DA=C8=FD=B2=E3:=D7=D4=BC=BA=B5=C4=D7=D4=B1=B0=C7=E9=BD=DA=A1=A2=BA= =CD=BC=D2=C8=CB=B5=C4=C7=D7=C3=DC=B9=D8=CF=B5=A3=BB =09 =B5=DA=CB=C4=B2=E3: =B8=F6=CC=E5=B2=BB=CE=AA=C9=E7=BB=E1=BD=D3=CA=DC= =B5=C4=D2=BB=D0=A9=CF=EB=B7=A8=BA=CD=D0=D0=CE=AA=A1=A3 =09 =09 =B0=B8=C0=FD=A3=BA=C9=FA=D2=E2=B2=BB=B3=C9=C8=CA=D2=E5=D4=DA=A3=AC=D4= =DB=C1=A9=BD=BB=B8=F6=C5=F3=D3=D1=A3=AC=D5=E2=BE=E4=BB=B0=D3=A6=B8=C3= =D3=C9=CB=AD=CB=B5=A3=BF =09 =B0=B8=C0=FD=A3=BA=D1=FB=C7=EB=BF=CD=BB=A7=B3=D4=B7=B9=A3=AC=C4=E3=D3= =A6=B8=C3=D4=F5=C3=B4=CB=B5=A3=BF =09 =B0=B8=C0=FD=A3=BA=B5=B1=BF=CD=BB=A7=B1=ED=D1=EF=C1=CB=C4=E3=A3=AC=C4= =E3=BB=E1=D4=F5=C3=B4=BB=D8=B4=F0=A3=BF =09 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=B0=B8=C0=FD=A3=BA=B6=E0=B4=CE=C9=CF=C3=C5=B0=DD=B7=C3=B1=BB=BE=DC=BE= =F8=A3=AC=C3=BB=D3=D0=D0=C5=D0=C4=D4=F5=C3=B4=B0=EC=A3=BF =09 =B0=B8=C0=FD=A3=BA=D0=C2=D4=B1=B9=A4=BD=F8=C8=EB=B9=AB=CB=BE=BA=F3=C3= =BB=D3=D0=B7=BD=CF=F2=D4=F5=C3=B4=B0=EC=A3=BF =09 =B0=B8=C0=FD=A3=BA=CA=C7=B2=BB=CA=C7=CA=C0=BD=E7=C9=CF=C8=CE=BA=CE=C1= =BD=B8=F6=C8=CB=D4=DA=D2=BB=C6=F0=B6=BC=BB=E1=D3=D0=CD=C5=B6=D3=BE=AB= =C9=F1=A3=BF =09 =09 =B5=DA=D2=BB=BD=DA=A1=A2=CD=C5=B6=D3=C5=E4=BA=CF=B5=C4=D6=D8=D2=AA=D0= =D4=A3=BA =09 1=A1=A2=D2=BB=D2=D1=CA=C7=C8=CB=A3=AC=D6=DA=C8=CB=CA=C7=CC=EC=A3=BB=C4= =B1=CA=C2=D4=DA=C8=CB=A3=AC=B3=C9=CA=C2=D4=DA=CC=EC=A3=BB =09 2=A1=A2=C3=BB=D3=D0=CD=EA=C3=C0=B5=C4=B8=F6=C8=CB=A3=AC=D6=BB=D3=D0=CD= =EA=C3=C0=B5=C4=CD=C5=B6=D3=A3=BB=B3=C9=B9=A6=CA=C7=D2=F2=CE=AA=D3=C5= =CA=C6=A3=AC=C3=D6=B2=B9=C8=B1=B5=E3=D6=BB=C4=DC=B1=E4=B5=C3=C6=BD=D3= =B9=A3=BB =09 4=A1=A2=B6=FE=B0=CB=B7=A8=D4=F2=BE=F6=B6=A8=C1=CB80%=C8=CB=CF=EB=B3=C9= =B9=A6=D0=E8=D2=AA=BD=E8=D6=FA20%=C8=CB=B5=C4=C1=A6=C1=BF=A3=BB = =09 5=A1=A2=B2=BB=D2=AA=D3=C3=D7=D4=BC=BA=B5=C4=C8=B1=B5=E3=D3=EB=B1=F0=C8= =CB=B5=C4=D3=C5=CA=C6=CF=E0=B1=C8=A3=BB =09 6=A1=A2=B2=BB=D2=AA=B0=D1=D7=A8=B2=C5=B5=B1=C8=AB=B2=C5=D3=C3=A3=AC=C4= =E3=CC=D6=D1=E1=D7=F6=B5=C4=CA=C2=A3=AC=B8=D5=BA=C3=CA=C7=B1=F0=C8=CB= =CF=B2=BB=B6=D7=F6=B5=C4=CA=C2=A1=A3 =09 =09 =B5=DA=B6=FE=BD=DA=A1=A2=D6=D8=D0=C2=CA=F7=C1=A2=B6=D4=CD=C5=B6=D3=B5= =C4=C8=CF=CA=B6 =09 =CD=C5=B6=D3=C7=B0=CC=E1=D2=BB=A3=BA=BB=A5=B2=B9=D0=D4=A3=AC=CD=AC=D0= =D4=CF=E0=B3=E2=A3=AC=D2=EC=D0=D4=CF=E0=CE=FC=A3=AC=D2=BB=C9=BD=B2=BB= =C8=DD=B6=FE=BB=A2=A3=BB =09 1.1 =B6=D4=CF=FA=CA=DB=B9=A4=D7=F7=B8=DA=CE=BB=BD=F8=D0=D0=B7=D6=CE= =F6=A3=AC=C7=F8=B7=D612=D6=D6=B2=BB=CD=AC=B5=C4=BC=BC=C4=DC=A3=BB = =09 1.2 =D0=D4=B8=F1=B5=C4=BB=A5=B2=B9=A3=AC6=D6=D6=B2=BB=CD=AC=D0=D4= =B8=F1=CC=D8=D5=F7=A3=BB =09 1.3 =BC=DB=D6=B5=BB=A5=B2=B9=A3=BA=D7=B7=C7=F3=C8=A8=A1=A2=D7=B7=C7= =F3=C7=AE=A1=A2=D7=B7=C7=F3=C7=E9=B8=D0 =09 =09 =CD=C5=B6=D3=C7=B0=CC=E1=B6=FE=A3=BA=C0=FB=D2=E6=BD=BB=BB=BB=A3=AC=C3= =BB=D3=D0=D3=C0=D4=B6=B5=C4=C5=F3=D3=D1=A3=AC=D6=BB=D3=D0=D3=C0=D4=B6= =B5=C4=C0=FB=D2=E6=A3=BB =09 =CD=C5=B6=D3=C7=B0=CC=E1=C8=FD=A3=BA=C7=E9=B8=D0=C8=CF=BF=C9=A3=AC=CD= =C5=B6=D3=B3=C9=D4=B1=B5=C4=B8=D0=C7=E9=CA=C7=CC=EC=C9=FA=B5=C4=A3=BB = =09 =09 =B0=B8=C0=FD=A3=BA=B5=EA=C3=E6/=D5=B9=CC=FC=CF=FA=CA=DB=B5=C4=CD=C5=B6= =D3=BA=CF=D7=F7=C4=A3=CA=BD =09 =B0=B8=C0=FD=A3=BA=B4=F3=BF=CD=BB=A7=CF=FA=CA=DB=B5=C4=CD=C5=B6=D3=BA= =CF=D7=F7=C4=A3=CA=BD =09 =B0=B8=C0=FD=A3=BA=BF=CD=BB=A7=D0=C5=CF=A2=C1=BF=B4=F3=B5=C4=CD=C5=B6= =D3=BA=CF=D7=F7=C4=A3=CA=BD =09 =B0=B8=C0=FD=A3=BA=D0=C2=D4=B1=B9=A4=CD=C5=B6=D3=BA=CF=D7=F7=C4=A3=CA= =BD=BD=A8=D2=E9 =09 =09 =B5=DA=C8=FD=BD=DA=A1=A2=B2=BB=CD=AC=BF=CD=BB=A7=CF=B2=BB=B6=B2=BB=CD= =AC=B7=E7=B8=F1=B5=C4=CF=FA=CA=DB=C8=CB=D4=B1 =09 1=A1=A2 =CF=FA=CA=DB=C8=CB=D4=B1=D0=CE=CF=F3=D3=EB=BE=D9=D6=B9=A3=AC= =D7=A2=D2=E2=D7=D4=BC=BA=B5=C4=D0=CE=CF=F3=A3=BB =09 2=A1=A2 =CA=C7=B7=F1=BE=DF=B1=B8=CF=E0=CB=C6=B5=C4=B1=B3=BE=B0=A3=AC= =C3=C5=B5=B1=BB=A7=B6=D4=A3=BB =09 3=A1=A2 =CA=C7=B7=F1=BE=DF=B1=B8=CF=E0=CD=AC=B5=C4=C8=CF=CA=B6=A3=AC= =B5=C0=B2=BB=CD=AC=B2=BB=CF=E0=CE=AA=C3=CB=A3=BB =09 4=A1=A2 =CA=C7=B7=F1=A1=B0=CD=B6=C6=E4=CB=F9=BA=C3=A1=B1=A3=AC=BB=B0= =B2=BB=CD=B6=BB=FA=B0=EB=BE=E4=B6=E0=A3=BB =09 5=A1=A2 =D4=DE=C3=C0=A3=AC=CF=B2=BB=B6=B6=D4=B7=BD=A3=AC=CE=D2=C3=C7= =CD=AC=D1=F9=B6=D4=CF=B2=BB=B6=CE=D2=C3=C7=B5=C4=C8=CB=D3=D0=BA=C3=B8= =D0=A3=BB =09 =CF=C8=BD=BB=C1=F7=B8=D0=C7=E9,=D4=F6=BD=F8=BB=A5=D0=C5,=D3=FB=CB= =D9=D4=F2=B2=BB=B4=EF; =09 6=A1=A2 =CA=C7=B7=F1=B6=D4=CF=FA=CA=DB=C8=CB=D4=B1=CA=EC=CF=A4=A3=AC= =CF=FA=CA=DB=D7=EE=BC=C9=BB=E4=BD=BB=C7=B3=D1=D4=C9=EE=A3=BB =09 =B3=F5=B4=CE=BC=FB=C3=E6=BE=CD=C6=F3=CD=BC=B8=FA=B1=F0=C8=CB=B3=C9= =CE=AA=C5=F3=D3=D1=B5=C4=D0=D0=CE=AA=BA=DC=D3=D7=D6=C9=A3=BB =09 =B3=F5=B4=CE=BC=FB=C3=E6=BE=CD=B0=B5=CA=BE=BA=C3=B4=A6=B5=C4=D0=D0= =CE=AA=BA=DC=B7=F4=C7=B3=A3=BB =09 =B8=D5=BC=FB=C3=E6=BE=CD=C7=BF=B5=F7=BC=DB=B8=F1=BA=DC=B1=E3=D2=CB= =B5=C4=D0=D0=CE=AA=BA=DC=D3=DE=B4=C0=A3=BB =09 7=A1=A2 =CF=FA=CA=DB=C8=CB=D4=B1=CA=C7=B7=F1=BE=DF=B1=B8=C7=D7=BA=CD= =C1=A6=A3=AC=B1=F0=C8=CB=B5=C4=C1=B3=CA=C7=D7=D4=BC=BA=B5=C4=D2=BB=C3= =E6=BE=B5=D7=D3=A3=BB =09 =B3=C9=BD=BB=B2=A2=B2=BB=C8=A1=BE=F6=D3=DA=CB=B5=C0=ED=A3=AC=B6=F8= =CA=C7=C8=A1=BE=F6=D3=DA=D0=C4=C7=E9 =09 8=A1=A2 =CF=FA=CA=DB=C8=CB=D4=B1=CA=C7=B7=F1=D6=B5=B5=C3=D0=C5=C0=B5= =A1=A3 =09 =09 =B5=DA=C1=F9=D5=C2 =D0=C2=BF=CD=BB=A7=BF=AA=B7=A2 =09 =D2=BB=A1=A2=BF=CD=BB=A7=CA=C7=B8=F9=BE=DD=D7=D4=BC=BA=CB=F9=CD=B6=C8= =EB=B5=C4=BE=AB=C1=A6=A1=A2=BD=F0=C7=AE=C0=B4=C8=B7=B6=A8=D7=D4=BC=BA= =B5=C4=CC=AC=B6=C8=A3=BB =09 =B6=FE=A1=A2=C8=E7=BA=CE=B2=C5=C4=DC=D2=FD=B5=BC=BF=CD=BB=A7=D7=F7=D7= =D4=CE=D2=CB=B5=B7=FE=A3=BF =09 =B0=B8=C0=FD=A3=BA=CE=AA=CA=B2=C3=B4=BF=CD=BB=A7=D2=BB=BF=AA=CA=BC=BA= =DC=D3=D0=D0=CB=C8=A4=A3=AC=B5=AB=B3=D9=B3=D9=B2=BB=CF=C2=B5=A5=A3=BF = =09 =B0=B8=C0=FD=A3=BA=C7=B0=CC=EC=C3=F7=C3=F7=CB=B5=B2=BB=C2=F2=B5=C4=BF= =CD=BB=A7=BE=D3=C8=BB=BD=F1=CC=EC=C8=B4=C2=F2=C1=CB=A3=AC=CE=AA=CA=B2= =C3=B4=A3=BF =09 =B0=B8=C0=FD=A3=BA=BF=CD=BB=A7=B4=F0=D3=A6=C2=F2=CE=D2=CB=BE=B5=C4=B2= =FA=C6=B7=A3=AC=C8=B4=CD=BB=C8=BB=B1=E4=D8=D4=C2=F2=B1=F0=C8=CB=B5=C4= =C1=CB=A3=AC=CE=AA=CA=B2=C3=B4=A3=BF =09 =B0=B8=C0=FD=A3=BA=CE=AA=CA=B2=C3=B4=CE=D2=C3=C7=BB=E1=C2=F2=BA=DC=B6= =E0=D7=D4=BC=BA=C3=BB=D3=D0=D0=CB=C8=A4=B5=C4=B6=F8=C7=D2=B2=A2=B2=BB= =D0=E8=D2=AA=B5=C4=B2=FA=C6=B7=A3=BF =09 =B0=B8=C0=FD=A3=BA=BA=CF=CD=AC=C7=A9=B6=A9=BA=F3=A3=AC=D3=A6=B8=C3=CE= =CA=C4=C44=BE=E4=BB=B0=A3=AC=CC=E1=C9=FD=BF=CD=BB=A7=D6=D2=B3=CF=B6=C8= =A3=BF =09 =09 =B5=DA=C6=DF=D5=C2 =BC=FB=CA=B2=C3=B4=C8=CB,=CB=B5=CA=B2=C3=B4=BB=B0;= =09 =CA=B1=BC=E4=A1=A2=C4=DC=C1=A6=A1=A2=BE=AB=C1=A6=A1=A2=D0=CB=C8=A4=A1= =A2=CE=C4=BB=AF=CB=AE=C6=BD=A1=A2=B2=BB=CD=AC=B5=C4=D6=B0=CE=BB=B5=C8= =B5=C4=D3=B0=CF=EC=D2=F2=CB=D8 =09 1. =CA=B2=C3=B4=C7=E9=BF=F6=CF=C2=C6=AB=D6=D8=D3=DA=C0=ED=D0=D4=CB=B5= =B7=FE,=B4=F2=B6=AF=B1=F0=C8=CB=B5=C4=C4=D4? =09 2. =CA=B2=C3=B4=C7=E9=BF=F6=CF=C2=C6=AB=D6=D8=D3=DA=C7=E9=B8=D0=CB=B5= =B7=FE,=B4=F2=B6=AF=B1=F0=C8=CB=B5=C4=D0=C4? =09 3. =BA=CE=D6=D6=C7=E9=BF=F6=CF=C2=D6=BB=BD=B2=D3=C5=CA=C6=B2=BB=BD=B2= =C1=D3=CA=C6=A3=BF =09 4. =BA=CE=D6=D6=C7=E9=BF=F6=CF=C2=BC=B4=BD=B2=D3=C5=CA=C6=D3=D6=BD=B2= =C1=D3=CA=C6=A3=BF =09 =09 =B5=DA=B0=CB=D5=C2 =BD=A8=C1=A2=B3=A4=C6=DA=B5=C4=D6=B0=D2=B5=B9=E6=BB= =AE =09 1=A1=A2=B9=A6=C0=FB=D0=C4=CC=AB=D6=D8,=B5=BC=D6=C2=BF=CD=BB=A7=BE=DC= =BE=F8,=C7=AE=CA=C7=B8=F8=C4=DA=D0=D0=B5=C4=C8=CB=D7=AC=B5=C4=A3=BB = =09 2=A1=A2=CA=C0=BD=E7=C9=CF=C3=BB=D3=D0=BA=C3=B9=A4=D7=F7,=BA=C3=B9=A4= =D7=F7=CA=C7=D7=D4=BC=BA=D7=F6=B3=F6=C0=B4=B5=C4; =09 3=A1=A2=D2=D4=C7=B0=B5=C4=BE=AD=D1=E9=D4=DA=D0=C2=B9=A4=D7=F7=D6=D0=B2= =BB=D2=BB=B6=A8=BD=E2=BE=F6=C4=BF=C7=B0=B5=C4=CE=CA=CC=E2=A3=BB = =09 4=A1=A2=B2=BB=D2=AA=D3=D0=CD=D0=B8=B6=D0=C4=CC=AC,=C4=D0=C5=C2=C8=EB= =B4=ED=D0=D0,=C5=AE=C5=C2=BC=DE=B4=ED=C0=C9; =09 5=A1=A2=BC=EC=CC=D6=D7=D4=BC=BA=CA=C7=B3=C9=B9=A6=B5=C4=BF=AA=CA=BC=A3= =AC=BC=EC=CC=D6=B1=F0=C8=CB=CA=C7=CA=A7=B0=DC=B5=C4=BF=AA=CA=BC; = =09 =09 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=C4=CF=BA=A3=BE=C6=B5=EA/=B9=F0=C1=D6=C8=FD=BD=F0=D2=A9=D2=B5/=C8=FD= =D2=BB=D6=D8=B9=A4/=C9=EE=DB=DA=B1=A6=B5=C2 =09 =BC=AF=CD=C5/=D2=E5=CE=DA=D3=CA=D5=FE=BE=D6/=B9=E3=CE=F7=CB=AE=B5=E7= =B9=A4=B3=CC=BE=D6/=D6=D8=C7=EC=C3=BA=BF=C6=D4=BA/=C9=EE=DB=DA=CC=D8= =B7=A2=B9=C9=B7=DD/=B1=B1=BE=A9=C7=FA =09 =C3=C0=BC=D2=CB=BD/=BE=C5=D1=F4=B5=E7=C6=F7/=D6=E9=B8=DB=BB=FA=B3=A1/= =B3=B2=BA=FE=D3=CA=D5=FE/=BC=C3=C4=CF=D3=CA=D5=FE/=C4=CF=BE=A9=D2=BD= =D2=A9=D7=DC=B9=AB=CB=BE/=B9=FA=C3=C0=B5=E7=C6=F7/=D3=EA=C8=F3=BC=AF= =CD=C5/=D6=D0=B9=FA=D2=BB=CD=CF=BC=AF=CD=C5 =09 =C4=DC=D4=B4=B7=D6=B9=AB=CB=BE/=D6=D8=C7=EC=BF=C6=B4=B4=D1=A7=D4=BA = =09 =09 ------=ryulh576_5130_214774475.712531-- From webmaster@dev102.magizz.com Thu Aug 14 21:13:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from 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Thank you From dave@fromorbit.com Fri Aug 15 01:39:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C08567F3F for ; Fri, 15 Aug 2014 01:39:15 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 81755304039 for ; Thu, 14 Aug 2014 23:39:15 -0700 (PDT) X-ASG-Debug-ID: 1408084751-04bdf01855215d0002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id QV3zD7A3OiF2V64m for ; Thu, 14 Aug 2014 23:39:13 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjUPAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGpzQXBQEBAQE4NoQEAQUnLzMIGDE5AwcUGYhBxT6FfIlthDYFqD+MZysvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZR-AU for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001UO-9k for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling Date: Fri, 15 Aug 2014 16:39:01 +1000 X-ASG-Orig-Subj: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling Message-Id: <1408084747-4540-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084753 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Currently the report of a bio error from completion immediately marks the buffer with an error. The issue is that this is racy w.r.t. synchronous IO - the submitter can see b_error being set before the IO is complete, and hence we cannot differentiate between submission failures and completion failures. Add an internal b_io_error field protected by the b_lock to catch IO completion errors, and only propagate that to the buffer during final IO completion handling. Hence we can tell in xfs_buf_iorequest if we've had a submission failure bey checking bp->b_error before dropping our b_io_remaining reference - that reference will prevent b_io_error values from being propagated to b_error in the event that completion races with submission. In doing so, allow xfs_buf_iorequest to return an error. That way, the caller can check for submission errors safely if required, and easily distinguish them from completion errors that come from xfs_buf_iowait(). Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 18 ++++++++++++++++-- fs/xfs/xfs_buf.h | 1 + 2 files changed, 17 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 1b7f0bc..58ae34c 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1008,6 +1008,13 @@ xfs_buf_ioend( bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); + /* + * Pull in IO completion errors now. We are guaranteed to be running + * single threaded, so we don't need the lock to read b_io_error. + */ + if (!bp->b_error && bp->b_io_error) + xfs_buf_ioerror(bp, bp->b_io_error); + if (!bp->b_error) { bp->b_flags |= XBF_DONE; @@ -1186,8 +1193,12 @@ xfs_buf_bio_end_io( * don't overwrite existing errors - otherwise we can lose errors on * buffers that require multiple bios to complete. */ - if (!bp->b_error) - xfs_buf_ioerror(bp, error); + if (error) { + spin_lock(&bp->b_lock); + if (!bp->b_io_error) + bp->b_io_error = error; + spin_unlock(&bp->b_lock); + } if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); @@ -1373,6 +1384,9 @@ xfs_buf_iorequest( if (bp->b_flags & XBF_WRITE) xfs_buf_wait_unpin(bp); + /* clear the internal error state to avoid spurious errors */ + bp->b_io_error = 0; + /* * Take references to the buffer. For XBF_ASYNC buffers, holding a * reference for as long as submission takes is all that is necessary diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 4585c15..44db8cd 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -158,6 +158,7 @@ typedef struct xfs_buf { struct list_head b_lru; /* lru list */ spinlock_t b_lock; /* internal state lock */ unsigned int b_state; /* internal state flags */ + int b_io_error; /* internal IO error state */ wait_queue_head_t b_waiters; /* unpin waiters */ struct list_head b_list; struct xfs_perag *b_pag; /* contains rbtree root */ -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E7CBA7F3F for ; Fri, 15 Aug 2014 01:39:16 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id B94928F8084 for ; Thu, 14 Aug 2014 23:39:16 -0700 (PDT) X-ASG-Debug-ID: 1408084751-04bdf01855215d0003-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id bC7dqnQFtzshcOdF for ; Thu, 14 Aug 2014 23:39:14 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak0PAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGhVGhYxcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEHFPoV8iW2ENgWGEKIvjGcrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZU-C0 for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001Ue-BC for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 6/9] xfs: kill xfs_bioerror_relse Date: Fri, 15 Aug 2014 16:39:04 +1000 X-ASG-Orig-Subj: [PATCH 6/9] xfs: kill xfs_bioerror_relse Message-Id: <1408084747-4540-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084754 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner There is only one caller now - xfs_trans_read_buf_map() - and it has very well defined call semantics - read, synchronous, and b_iodone is NULL. Hence it's pretty clear what error handling is necessary for this case. The bigger problem of untangling xfs_trans_read_buf_map error handling is left to a future patch. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 39 --------------------------------------- fs/xfs/xfs_buf.h | 2 -- fs/xfs/xfs_trans_buf.c | 8 +++++--- 3 files changed, 5 insertions(+), 44 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index f444285..352e9219 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1071,45 +1071,6 @@ xfs_buf_ioerror_alert( (__uint64_t)XFS_BUF_ADDR(bp), func, -bp->b_error, bp->b_length); } -/* - * Same as xfs_bioerror, except that we are releasing the buffer - * here ourselves, and avoiding the xfs_buf_ioend call. - * This is meant for userdata errors; metadata bufs come with - * iodone functions attached, so that we can track down errors. - */ -int -xfs_bioerror_relse( - struct xfs_buf *bp) -{ - int64_t fl = bp->b_flags; - /* - * No need to wait until the buffer is unpinned. - * We aren't flushing it. - * - * chunkhold expects B_DONE to be set, whether - * we actually finish the I/O or not. We don't want to - * change that interface. - */ - XFS_BUF_UNREAD(bp); - XFS_BUF_DONE(bp); - xfs_buf_stale(bp); - bp->b_iodone = NULL; - if (!(fl & XBF_ASYNC)) { - /* - * Mark b_error and B_ERROR _both_. - * Lot's of chunkcache code assumes that. - * There's no reason to mark error for - * ASYNC buffers. - */ - xfs_buf_ioerror(bp, -EIO); - complete(&bp->b_iowait); - } else { - xfs_buf_relse(bp); - } - - return -EIO; -} - int xfs_bwrite( struct xfs_buf *bp) diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index 44db8cd..d8f57f6 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -297,8 +297,6 @@ extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, #define xfs_buf_zero(bp, off, len) \ xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO) -extern int xfs_bioerror_relse(struct xfs_buf *); - /* Buffer Utility Routines */ extern xfs_caddr_t xfs_buf_offset(xfs_buf_t *, size_t); diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 96c898e..758c07d 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -324,11 +324,13 @@ xfs_trans_read_buf_map( */ if (XFS_FORCED_SHUTDOWN(mp)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); - xfs_bioerror_relse(bp); - } else { - xfs_buf_iorequest(bp); + bp->b_flags &= ~(XBF_READ | XBF_DONE); + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + return -EIO; } + xfs_buf_iorequest(bp); error = xfs_buf_iowait(bp); if (error) { xfs_buf_ioerror_alert(bp, __func__); -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 72BD37F47 for ; Fri, 15 Aug 2014 01:39:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 617A9304043 for ; Thu, 14 Aug 2014 23:39:17 -0700 (PDT) X-ASG-Debug-ID: 1408084755-04cbb054851f0d0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id VJ9s7AMB8H2MOqii for ; Thu, 14 Aug 2014 23:39:15 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak0PAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGhVGhYxcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEHFPoV8jiMFhhCiL4xnKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZT-BY for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001UZ-Ah for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 5/9] xfs: xfs_bioerror can die. Date: Fri, 15 Aug 2014 16:39:03 +1000 X-ASG-Orig-Subj: [PATCH 5/9] xfs: xfs_bioerror can die. Message-Id: <1408084747-4540-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084755 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Internal buffer write error handling is a mess due to the unnatural split between xfs_bioerror and xfs_bioerror_relse(). The buffer reference counting is also wrong for the xfs_bioerror path for xfs_bwrite - it uses sync IO and so xfs_buf_ioend will release a hold count that was never taken. Further, xfs_bwrite only does sync IO and determines the handler to call based on b_iodone, so for this caller the only difference between xfs_bioerror() and xfs_bioerror_release() is the XBF_DONE flag. We don't care what the XBF_DONE flag state is because we stale the buffer in both paths - the next buffer lookup will clear XBF_DONE anyway because XBF_STALE is set. Hence we can use common error handling for xfs_bwrite(). __xfs_buf_delwri_submit() is a similar - it's only ever called on writes - all sync or async - and again there's no reason to handle them any differently at all. Clean up the nasty error handling and remove xfs_bioerror(). Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 67 +++++++++++++++++--------------------------------------- 1 file changed, 20 insertions(+), 47 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 98fcf5a..f444285 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1072,36 +1072,6 @@ xfs_buf_ioerror_alert( } /* - * Called when we want to stop a buffer from getting written or read. - * We attach the EIO error, muck with its flags, and call xfs_buf_ioend - * so that the proper iodone callbacks get called. - */ -STATIC int -xfs_bioerror( - xfs_buf_t *bp) -{ -#ifdef XFSERRORDEBUG - ASSERT(XFS_BUF_ISREAD(bp) || bp->b_iodone); -#endif - - /* - * No need to wait until the buffer is unpinned, we aren't flushing it. - */ - xfs_buf_ioerror(bp, -EIO); - - /* - * We're calling xfs_buf_ioend, so delete XBF_DONE flag. - */ - XFS_BUF_UNREAD(bp); - XFS_BUF_UNDONE(bp); - xfs_buf_stale(bp); - - xfs_buf_ioend(bp); - - return -EIO; -} - -/* * Same as xfs_bioerror, except that we are releasing the buffer * here ourselves, and avoiding the xfs_buf_ioend call. * This is meant for userdata errors; metadata bufs come with @@ -1149,19 +1119,19 @@ xfs_bwrite( ASSERT(xfs_buf_islocked(bp)); bp->b_flags |= XBF_WRITE; - bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL); + bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | + XBF_WRITE_FAIL | XBF_DONE); if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); - /* - * Metadata write that didn't get logged but written anyway. - * These aren't associated with a transaction, and can be - * ignored. - */ - if (!bp->b_iodone) - return xfs_bioerror_relse(bp); - return xfs_bioerror(bp); + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + + /* sync IO, xfs_buf_ioend is going to remove a ref here */ + xfs_buf_hold(bp); + xfs_buf_ioend(bp); + return -EIO; } xfs_buf_iorequest(bp); @@ -1848,16 +1818,19 @@ __xfs_buf_delwri_submit( if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + /* - * Metadata write that didn't get logged but written anyway. - * These aren't associated with a transaction, and can be - * ignored. + * if sync IO, xfs_buf_ioend is going to remove a + * ref here. We need to add that so we can collect + * all the buffer errors in the wait loop. */ - if (!bp->b_iodone) - return xfs_bioerror_relse(bp); - return xfs_bioerror(bp); - } - xfs_buf_iorequest(bp); + if (wait) + xfs_buf_hold(bp); + xfs_buf_ioend(bp); + } else + xfs_buf_iorequest(bp); } blk_finish_plug(&plug); -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CD3D67F4E for ; Fri, 15 Aug 2014 01:39:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id BBF098F8084 for ; Thu, 14 Aug 2014 23:39:17 -0700 (PDT) X-ASG-Debug-ID: 1408084753-04cbb054881f0d0002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id CDIZXBM9OhjnkpDe for ; Thu, 14 Aug 2014 23:39:15 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgclAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGhVGfFoJNFwUBAQEBODaEBAEFJy8zCBgxOQMHFBmIQcU+hXyOIwWGEKIvjGcrL4EIJIEjAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZQ-A3 for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001UJ-9C for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Date: Fri, 15 Aug 2014 16:39:00 +1000 X-ASG-Orig-Subj: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-Id: <1408084747-4540-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084755 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner We do some work in xfs_buf_ioend, and some work in xfs_buf_iodone_work, but much of that functionality is the same. This work can all be done in a single function, leaving xfs_buf_iodone just a wrapper to determine if we should execute it by workqueue or directly. hence rename xfs_buf_iodone_work to xfs_buf_ioend(), and add a new xfs_buf_ioend_async() for places that need async processing. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 79 +++++++++++++++++++++--------------------------- fs/xfs/xfs_buf.h | 2 +- fs/xfs/xfs_buf_item.c | 4 +-- fs/xfs/xfs_inode.c | 2 +- fs/xfs/xfs_log.c | 2 +- fs/xfs/xfs_log_recover.c | 2 +- 6 files changed, 40 insertions(+), 51 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 5d86bbd..1b7f0bc 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -999,54 +999,49 @@ xfs_buf_wait_unpin( */ STATIC void -xfs_buf_iodone_work( - struct work_struct *work) +xfs_buf_ioend( + struct xfs_buf *bp) { - struct xfs_buf *bp = - container_of(work, xfs_buf_t, b_iodone_work); - bool read = !!(bp->b_flags & XBF_READ); + bool read = !!(bp->b_flags & XBF_READ); + + trace_xfs_buf_iodone(bp, _RET_IP_); bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); - /* only validate buffers that were read without errors */ - if (read && bp->b_ops && !bp->b_error && (bp->b_flags & XBF_DONE)) - bp->b_ops->verify_read(bp); + if (!bp->b_error) { + bp->b_flags |= XBF_DONE; + + /* only validate buffers that were read without errors */ + if (read && bp->b_ops) + bp->b_ops->verify_read(bp); + } if (bp->b_iodone) (*(bp->b_iodone))(bp); else if (bp->b_flags & XBF_ASYNC) xfs_buf_relse(bp); else { - ASSERT(read && bp->b_ops); complete(&bp->b_iowait); xfs_buf_rele(bp); } } -void -xfs_buf_ioend( - struct xfs_buf *bp, - int schedule) +static void +xfs_buf_ioend_work( + struct work_struct *work) { - bool read = !!(bp->b_flags & XBF_READ); - - trace_xfs_buf_iodone(bp, _RET_IP_); + struct xfs_buf *bp = + container_of(work, xfs_buf_t, b_iodone_work); - if (bp->b_error == 0) - bp->b_flags |= XBF_DONE; + xfs_buf_ioend(bp); +} - if (bp->b_iodone || (read && bp->b_ops) || (bp->b_flags & XBF_ASYNC)) { - if (schedule) { - INIT_WORK(&bp->b_iodone_work, xfs_buf_iodone_work); - queue_work(xfslogd_workqueue, &bp->b_iodone_work); - } else { - xfs_buf_iodone_work(&bp->b_iodone_work); - } - } else { - bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); - complete(&bp->b_iowait); - xfs_buf_rele(bp); - } +void +xfs_buf_ioend_async( + struct xfs_buf *bp) +{ + INIT_WORK(&bp->b_iodone_work, xfs_buf_ioend_work); + queue_work(xfslogd_workqueue, &bp->b_iodone_work); } void @@ -1094,7 +1089,7 @@ xfs_bioerror( XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); return -EIO; } @@ -1181,15 +1176,6 @@ xfs_bwrite( } STATIC void -_xfs_buf_ioend( - xfs_buf_t *bp, - int schedule) -{ - if (atomic_dec_and_test(&bp->b_io_remaining) == 1) - xfs_buf_ioend(bp, schedule); -} - -STATIC void xfs_buf_bio_end_io( struct bio *bio, int error) @@ -1206,7 +1192,8 @@ xfs_buf_bio_end_io( if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); - _xfs_buf_ioend(bp, 1); + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) + xfs_buf_ioend_async(bp); bio_put(bio); } @@ -1425,10 +1412,12 @@ xfs_buf_iorequest( * waiting, and in the synchronous IO case it avoids unnecessary context * switches an latency for high-peformance devices. */ - if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) - _xfs_buf_ioend(bp, 0); - else - _xfs_buf_ioend(bp, 1); + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) + xfs_buf_ioend(bp); + else + xfs_buf_ioend_async(bp); + } xfs_buf_rele(bp); } diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index c753183..4585c15 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -286,7 +286,7 @@ extern void xfs_buf_unlock(xfs_buf_t *); /* Buffer Read and Write Routines */ extern int xfs_bwrite(struct xfs_buf *bp); -extern void xfs_buf_ioend(xfs_buf_t *, int); +extern void xfs_buf_ioend(struct xfs_buf *bp); extern void xfs_buf_ioerror(xfs_buf_t *, int); extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); extern void xfs_buf_iorequest(xfs_buf_t *); diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 76007de..4fd41b5 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -491,7 +491,7 @@ xfs_buf_item_unpin( xfs_buf_ioerror(bp, -EIO); XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } } @@ -1115,7 +1115,7 @@ do_callbacks: xfs_buf_do_callbacks(bp); bp->b_fspriv = NULL; bp->b_iodone = NULL; - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } /* diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index fea3c92..00d210b 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -3056,7 +3056,7 @@ cluster_corrupt_out: XFS_BUF_UNDONE(bp); xfs_buf_stale(bp); xfs_buf_ioerror(bp, -EIO); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } else { xfs_buf_stale(bp); xfs_buf_relse(bp); diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 8eaa8f5..e4665db 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1689,7 +1689,7 @@ xlog_bdstrat( if (iclog->ic_state & XLOG_STATE_IOERROR) { xfs_buf_ioerror(bp, -EIO); xfs_buf_stale(bp); - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); /* * It would seem logical to return EIO here, but we rely on * the log state machine to propagate I/O errors instead of diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1fd5787..4ba19bf 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -383,7 +383,7 @@ xlog_recover_iodone( SHUTDOWN_META_IO_ERROR); } bp->b_iodone = NULL; - xfs_buf_ioend(bp, 0); + xfs_buf_ioend(bp); } /* -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 3CA6E7F47 for ; Fri, 15 Aug 2014 01:39:18 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DB59C8F8052 for ; Thu, 14 Aug 2014 23:39:17 -0700 (PDT) X-ASG-Debug-ID: 1408084751-04bdf01855215d0004-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id NlDlE2l2t1H5LwXg for ; Thu, 14 Aug 2014 23:39:16 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak0PAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGhVGhYxcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEHFPoV8iW2ENgWGEKIvjGcrL4EIJIEjAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZX-Dv for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001Ut-Cp for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly Date: Fri, 15 Aug 2014 16:39:07 +1000 X-ASG-Orig-Subj: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly Message-Id: <1408084747-4540-10-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084755 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner xfs_buf_read_uncached() has two failure modes. If can either return NULL or bp->b_error != 0 depending on the type of failure, and not all callers check for both. Fix it up. Signed-off-by: Dave Chinner --- fs/xfs/xfs_mount.c | 55 ++++++++++++++++++++++++++++++------------------------ 1 file changed, 31 insertions(+), 24 deletions(-) diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index d0ef01e..10a365a 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -304,13 +304,8 @@ xfs_readsb( reread: bp = xfs_buf_read_uncached(mp->m_ddev_targp, XFS_SB_DADDR, BTOBB(sector_size), 0, buf_ops); - if (!bp) { - if (loud) - xfs_warn(mp, "SB buffer read failed"); - return -EIO; - } - if (bp->b_error) { - error = bp->b_error; + if (!bp || bp->b_error) { + error = bp ? bp->b_error : -ENOMEM; if (loud) xfs_warn(mp, "SB validate failed with error %d.", error); /* bad CRC means corrupted metadata */ @@ -368,7 +363,8 @@ reread: return 0; release_buf: - xfs_buf_relse(bp); + if (bp) + xfs_buf_relse(bp); return error; } @@ -546,10 +542,12 @@ xfs_set_inoalignment(xfs_mount_t *mp) * Check that the data (and log if separate) is an ok size. */ STATIC int -xfs_check_sizes(xfs_mount_t *mp) +xfs_check_sizes( + struct xfs_mount *mp) { - xfs_buf_t *bp; + struct xfs_buf *bp; xfs_daddr_t d; + int error; d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks); if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_dblocks) { @@ -559,28 +557,37 @@ xfs_check_sizes(xfs_mount_t *mp) bp = xfs_buf_read_uncached(mp->m_ddev_targp, d - XFS_FSS_TO_BB(mp, 1), XFS_FSS_TO_BB(mp, 1), 0, NULL); - if (!bp) { + if (!bp || bp->b_error) { xfs_warn(mp, "last sector read failed"); - return -EIO; + goto out_fail; } xfs_buf_relse(bp); - if (mp->m_logdev_targp != mp->m_ddev_targp) { - d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); - if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) { - xfs_warn(mp, "log size mismatch detected"); - return -EFBIG; - } - bp = xfs_buf_read_uncached(mp->m_logdev_targp, + if (mp->m_logdev_targp == mp->m_ddev_targp) + return 0; + + d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks); + if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) { + xfs_warn(mp, "log size mismatch detected"); + return -EFBIG; + } + bp = xfs_buf_read_uncached(mp->m_logdev_targp, d - XFS_FSB_TO_BB(mp, 1), XFS_FSB_TO_BB(mp, 1), 0, NULL); - if (!bp) { - xfs_warn(mp, "log device read failed"); - return -EIO; - } - xfs_buf_relse(bp); + if (!bp || bp->b_error) { + xfs_warn(mp, "log device read failed"); + goto out_fail; } + xfs_buf_relse(bp); return 0; + +out_fail: + if (!bp) + return -EIO; + error = bp->b_error; + xfs_buf_relse(bp); + return error; + } /* -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9DA247F3F for ; Fri, 15 Aug 2014 01:39:17 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6FE13304048 for ; Thu, 14 Aug 2014 23:39:14 -0700 (PDT) X-ASG-Debug-ID: 1408084751-04bdf01855215d0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id Ff6RqmwKtYRsyE99 for ; Thu, 14 Aug 2014 23:39:12 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At8NAJmq7VN5LDJ8PGdsb2JhbABagw2IXadmAQEBAQEBBqc0FwUBAQEBODaEYDuBAgMHiG6gPaUBhXyJbYQ2BY8KmTWKPoIpK4J+AQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZO-9J for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001UB-7U for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [RFC PATCH 0/9] xfs: clean up xfs_buf io interfaces Date: Fri, 15 Aug 2014 16:38:58 +1000 X-ASG-Orig-Subj: [RFC PATCH 0/9] xfs: clean up xfs_buf io interfaces Message-Id: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084751 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, This patch set has come from the conversion Brian and I have been having over how to fix a use-after-free issue related to IO completions racing with synchronous IO submission. It seemed to me we were having trouble grasping all the different things that were wrong and putting them in a line, so I figured the easiest way to do with was to write a patchset that fixed the original bug, everything else we'd noticed, and changed the IO API such that we wouldn't have problems in the future. So, this patch contains: a) initial fix for the use after free issue (patch 1) b) clear separation of IO submission errors at the XFS level from IO errors reported through BIO completion callbacks (patches 2,3) c) removal of some historic cruft around IO submission (patch 4) d) rework of unnecessarily complex historic error handling paths (patches 5,6,7) e) a new API for clear and concise asynchronous and synchronous IO. (patch 8) The last patch fixes a bug I found writing patch 8, and can probably be moved to first in the series... I was just going to send this compile tested for comments, but I threw it at a couple of VMs and it's half way through xfstests now without any failures. That means I haven't broken anything badly, though the error hendling changes will be interesting to test. The error handling changes have something in common - a buffer that took an IO error was mostly marked stale, but not always. Sometimes they were marked as "not done" indicating that IO needed to be done on them before the contents were valid. Some got marked stale and done, and so on. The thing is, when we mark a buffer stale, it is essentially the same thing as marking it !XBF_DONE. So all the error handling paths now stale the buffer and clear XBF_DONE. Nice, consistent error handling. This enabled some significant cleanups - xfs_trans_buf_read_map() finally got the love it's been needing for long time. It also defines a specific, safe way for waiting on XBF_ASYNC buffer IO, and makes use of that in the buffer delayed write code. Hence the patchset also solves the problem of how do async dispatch, some work, then wait for IO completion as separate steps as opposed to issuing synchronous IO that is waited on immediately. Also, the rework of the IO submission interfaces removes the fixes added in the first patch to solve the use-after-free issue - we no longer need an extra reference to protect parts of the IO completion path because the reference we take during submission is held until after the IO completion wait has occurred. Anyway, I figured patches would speak louder than any description, and most especially a diffstat that looks like this: 9 files changed, 286 insertions(+), 360 deletions(-) Comments welcome. -Dave. From dave@fromorbit.com Fri Aug 15 01:39:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 26A237F59 for ; Fri, 15 Aug 2014 01:39:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 0615B8F8052 for ; Thu, 14 Aug 2014 23:39:15 -0700 (PDT) X-ASG-Debug-ID: 1408084753-04cbb054881f0d0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id nJUazeS1axm4KoZR for ; Thu, 14 Aug 2014 23:39:14 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjUPAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGpzQXBQEBAQE4NoQEAQUnLzMIGDE5AwcUGYhBxT6FfI4jBbUmKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZP-9U for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001UE-8L for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/9] xfs: synchronous buffer IO needs a reference Date: Fri, 15 Aug 2014 16:38:59 +1000 X-ASG-Orig-Subj: [PATCH 1/9] xfs: synchronous buffer IO needs a reference Message-Id: <1408084747-4540-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084753 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner When synchronous IO runs IO completion work, it does so without an IO reference or a hold reference on the buffer. The IO "hold reference" is owned by the submitter, and released when the submission is complete. The IO reference is released when both the submitter and the bio end_io processing is run, and so if the io completion work is run from IO completion context, it is run without an IO reference. Hence we can get the situation where the submitter can submit the IO, see an error on the buffer and unlock and free the buffer while there is still IO in progress. This leads to use-after-free and memory corruption. Fix this by taking a "sync IO hold" reference that is owned by the IO and not released until after the buffer completion calls are run to wake up synchronous waiters. This means that the buffer will not be freed in any circumstance until all IO processing is completed. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 46 ++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 38 insertions(+), 8 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index cd7b8ca..5d86bbd 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1019,6 +1019,7 @@ xfs_buf_iodone_work( else { ASSERT(read && bp->b_ops); complete(&bp->b_iowait); + xfs_buf_rele(bp); } } @@ -1044,6 +1045,7 @@ xfs_buf_ioend( } else { bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); complete(&bp->b_iowait); + xfs_buf_rele(bp); } } @@ -1383,22 +1385,50 @@ xfs_buf_iorequest( if (bp->b_flags & XBF_WRITE) xfs_buf_wait_unpin(bp); + + /* + * Take references to the buffer. For XBF_ASYNC buffers, holding a + * reference for as long as submission takes is all that is necessary + * here. The IO inherits the lock and hold count from the submitter, + * and these are release during IO completion processing. Taking a hold + * over submission ensures that the buffer is not freed until we have + * completed all processing, regardless of when IO errors occur or are + * reported. + * + * However, for synchronous IO, the IO does not inherit the submitters + * reference count, nor the buffer lock. Hence we need to take an extra + * reference to the buffer for the for the IO context so that we can + * guarantee the buffer is not freed until all IO completion processing + * is done. Otherwise the caller can drop their reference while the IO + * is still in progress and hence trigger a use-after-free situation. + */ xfs_buf_hold(bp); + if (!(bp->b_flags & XBF_ASYNC)) + xfs_buf_hold(bp); + /* - * Set the count to 1 initially, this will stop an I/O - * completion callout which happens before we have started - * all the I/O from calling xfs_buf_ioend too early. + * Set the count to 1 initially, this will stop an I/O completion + * callout which happens before we have started all the I/O from calling + * xfs_buf_ioend too early. */ atomic_set(&bp->b_io_remaining, 1); _xfs_buf_ioapply(bp); + /* - * If _xfs_buf_ioapply failed, we'll get back here with - * only the reference we took above. _xfs_buf_ioend will - * drop it to zero, so we'd better not queue it for later, - * or we'll free it before it's done. + * If _xfs_buf_ioapply failed or we are doing synchronous IO that + * completes extremely quickly, we can get back here with only the IO + * reference we took above. _xfs_buf_ioend will drop it to zero, so + * we'd better run completion processing synchronously so that the we + * don't return to the caller with completion still pending. In the + * error case, this allows the caller to check b_error safely without + * waiting, and in the synchronous IO case it avoids unnecessary context + * switches an latency for high-peformance devices. */ - _xfs_buf_ioend(bp, bp->b_error ? 0 : 1); + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) + _xfs_buf_ioend(bp, 0); + else + _xfs_buf_ioend(bp, 1); xfs_buf_rele(bp); } -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7E3FB29DFA for ; Fri, 15 Aug 2014 01:39:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 54E028F8089 for ; Thu, 14 Aug 2014 23:39:19 -0700 (PDT) X-ASG-Debug-ID: 1408084755-04cbb054851f0d0002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 2u5e5YIRHwej1GM1 for ; Thu, 14 Aug 2014 23:39:17 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak0PAJmq7VN5LDJ8PGdsb2JhbABSCIMNgSqHM6dmAQEBAQEBBoVRoWMXBQEBAQE4NoQEAQUnLzMIGDE5AwcUGYhBxT6FfIh6hSkFhhCiL4xnKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:10 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZV-CZ for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001Uj-Bk for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 7/9] xfs: clean up xfs_trans_buf_read_map Date: Fri, 15 Aug 2014 16:39:05 +1000 X-ASG-Orig-Subj: [PATCH 7/9] xfs: clean up xfs_trans_buf_read_map Message-Id: <1408084747-4540-8-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084756 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The error handling is a mess of inconsistent spaghetti. Clean it up like Christoph's comment from long ago said we should. While there, get rid of the "xfs_do_error" error injection debug code. If we need to do error injection, we can do it on demand via kprobes rather than needing to run the kernel under a debug and poke magic variables. Signed-off-by: Dave Chinner --- fs/xfs/xfs_trans_buf.c | 187 ++++++++++++++++++------------------------------- 1 file changed, 69 insertions(+), 118 deletions(-) diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 758c07d..9c3e610 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -229,13 +229,6 @@ xfs_trans_getsb(xfs_trans_t *tp, return bp; } -#ifdef DEBUG -xfs_buftarg_t *xfs_error_target; -int xfs_do_error; -int xfs_req_num; -int xfs_error_mod = 33; -#endif - /* * Get and lock the buffer for the caller if it is not already * locked within the given transaction. If it has not yet been @@ -257,165 +250,123 @@ xfs_trans_read_buf_map( struct xfs_buf **bpp, const struct xfs_buf_ops *ops) { - xfs_buf_t *bp; - xfs_buf_log_item_t *bip; + struct xfs_buf *bp = NULL; int error; + bool release = true; *bpp = NULL; - if (!tp) { - bp = xfs_buf_read_map(target, map, nmaps, flags, ops); - if (!bp) - return (flags & XBF_TRYLOCK) ? - -EAGAIN : -ENOMEM; - - if (bp->b_error) { - error = bp->b_error; - xfs_buf_ioerror_alert(bp, __func__); - XFS_BUF_UNDONE(bp); - xfs_buf_stale(bp); - xfs_buf_relse(bp); - - /* bad CRC means corrupted metadata */ - if (error == -EFSBADCRC) - error = -EFSCORRUPTED; - return error; - } -#ifdef DEBUG - if (xfs_do_error) { - if (xfs_error_target == target) { - if (((xfs_req_num++) % xfs_error_mod) == 0) { - xfs_buf_relse(bp); - xfs_debug(mp, "Returning error!"); - return -EIO; - } - } - } -#endif - if (XFS_FORCED_SHUTDOWN(mp)) - goto shutdown_abort; - *bpp = bp; - return 0; - } /* - * If we find the buffer in the cache with this transaction - * pointer in its b_fsprivate2 field, then we know we already - * have it locked. If it is already read in we just increment - * the lock recursion count and return the buffer to the caller. - * If the buffer is not yet read in, then we read it in, increment - * the lock recursion count, and return it to the caller. + * If we find the buffer in this transaction's item list, then we know + * we already have it locked. If it is already read in we just + * increment the lock recursion count and return the buffer to the + * caller. */ - bp = xfs_trans_buf_item_match(tp, target, map, nmaps); - if (bp != NULL) { + if (tp) + bp = xfs_trans_buf_item_match(tp, target, map, nmaps); + + if (bp) { + struct xfs_buf_log_item *bip; + + /* + * We don't own this buffer ourselves, so we shouldn't release + * it if we come across any errors in processing it. + */ + release = false; + ASSERT(xfs_buf_islocked(bp)); ASSERT(bp->b_transp == tp); ASSERT(bp->b_fspriv != NULL); ASSERT(!bp->b_error); - if (!(XFS_BUF_ISDONE(bp))) { + if (!(bp->b_flags & XBF_DONE)) { trace_xfs_trans_read_buf_io(bp, _RET_IP_); - ASSERT(!XFS_BUF_ISASYNC(bp)); + ASSERT(!(bp->b_flags & XBF_ASYNC)); ASSERT(bp->b_iodone == NULL); - XFS_BUF_READ(bp); + + bp->b_flags |= XBF_READ; bp->b_ops = ops; - /* - * XXX(hch): clean up the error handling here to be less - * of a mess.. - */ if (XFS_FORCED_SHUTDOWN(mp)) { trace_xfs_bdstrat_shut(bp, _RET_IP_); - bp->b_flags &= ~(XBF_READ | XBF_DONE); - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); - return -EIO; + error = -EIO; + goto out_stale; } xfs_buf_iorequest(bp); error = xfs_buf_iowait(bp); if (error) { xfs_buf_ioerror_alert(bp, __func__); - xfs_buf_relse(bp); - /* - * We can gracefully recover from most read - * errors. Ones we can't are those that happen - * after the transaction's already dirty. - */ - if (tp->t_flags & XFS_TRANS_DIRTY) - xfs_force_shutdown(tp->t_mountp, - SHUTDOWN_META_IO_ERROR); - /* bad CRC means corrupted metadata */ - if (error == -EFSBADCRC) - error = -EFSCORRUPTED; - return error; + goto out_do_shutdown; + } } - /* - * We never locked this buf ourselves, so we shouldn't - * brelse it either. Just get out. - */ + if (XFS_FORCED_SHUTDOWN(mp)) { trace_xfs_trans_read_buf_shut(bp, _RET_IP_); - *bpp = NULL; return -EIO; } - + /* good buffer! */ bip = bp->b_fspriv; bip->bli_recur++; - ASSERT(atomic_read(&bip->bli_refcount) > 0); trace_xfs_trans_read_buf_recur(bip); *bpp = bp; return 0; } + /* + * Read the buffer from disk as there is no transaction context or we + * didn't find a matching buffer in the transaction item list. + */ bp = xfs_buf_read_map(target, map, nmaps, flags, ops); - if (bp == NULL) { - *bpp = NULL; - return (flags & XBF_TRYLOCK) ? - 0 : -ENOMEM; + if (!bp) { + /* XXX(dgc): should always return -EAGAIN on trylock failure */ + if (!(flags & XBF_TRYLOCK)) + return -ENOMEM; + if (!tp) + return -EAGAIN; + return 0; } if (bp->b_error) { - error = bp->b_error; - xfs_buf_stale(bp); - XFS_BUF_DONE(bp); xfs_buf_ioerror_alert(bp, __func__); - if (tp->t_flags & XFS_TRANS_DIRTY) - xfs_force_shutdown(tp->t_mountp, SHUTDOWN_META_IO_ERROR); - xfs_buf_relse(bp); - - /* bad CRC means corrupted metadata */ - if (error == -EFSBADCRC) - error = -EFSCORRUPTED; - return error; + error = bp->b_error; + goto out_do_shutdown; } -#ifdef DEBUG - if (xfs_do_error && !(tp->t_flags & XFS_TRANS_DIRTY)) { - if (xfs_error_target == target) { - if (((xfs_req_num++) % xfs_error_mod) == 0) { - xfs_force_shutdown(tp->t_mountp, - SHUTDOWN_META_IO_ERROR); - xfs_buf_relse(bp); - xfs_debug(mp, "Returning trans error!"); - return -EIO; - } - } + + if (XFS_FORCED_SHUTDOWN(mp)) { + trace_xfs_trans_read_buf_shut(bp, _RET_IP_); + error = -EIO; + goto out_stale; } -#endif - if (XFS_FORCED_SHUTDOWN(mp)) - goto shutdown_abort; - _xfs_trans_bjoin(tp, bp, 1); - trace_xfs_trans_read_buf(bp->b_fspriv); + if (tp) { + _xfs_trans_bjoin(tp, bp, 1); + trace_xfs_trans_read_buf(bp->b_fspriv); + } *bpp = bp; return 0; -shutdown_abort: - trace_xfs_trans_read_buf_shut(bp, _RET_IP_); - xfs_buf_relse(bp); - *bpp = NULL; - return -EIO; + +out_do_shutdown: + /* + * We can gracefully recover from most read errors. Ones we can't are + * those that happen after the transaction's already dirty. + */ + if (tp && (tp->t_flags & XFS_TRANS_DIRTY)) + xfs_force_shutdown(tp->t_mountp, SHUTDOWN_META_IO_ERROR); +out_stale: + bp->b_flags &= ~(XBF_READ | XBF_DONE); + xfs_buf_ioerror(bp, error); + xfs_buf_stale(bp); + if (release) + xfs_buf_relse(bp); + + /* bad CRC means corrupted metadata */ + if (error == -EFSBADCRC) + error = -EFSCORRUPTED; + return error; } /* -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7D3F029DF9 for ; Fri, 15 Aug 2014 01:39:19 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id F2D5B304039 for ; Thu, 14 Aug 2014 23:39:18 -0700 (PDT) X-ASG-Debug-ID: 1408084751-04bdf01855215d0005-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id BiLXs6cKcCev9Grk for ; Thu, 14 Aug 2014 23:39:17 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak0PAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGhVGhYxcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEHFPoV8iW2ENgWGEKIvjGcrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:11 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZS-Az for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001UT-A9 for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 4/9] xfs: kill xfs_bdstrat_cb Date: Fri, 15 Aug 2014 16:39:02 +1000 X-ASG-Orig-Subj: [PATCH 4/9] xfs: kill xfs_bdstrat_cb Message-Id: <1408084747-4540-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084756 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Only has two callers, and is just a shutdown check and error handler around xfs_buf_iorequest. However, the error handling is a mess of read and write semantics, and both internal callers only call it for writes. Hence kill the wrapper, and follow up with a patch to sanitise the error handling. Signed-off-by: Dave Chinner --- fs/xfs/xfs_buf.c | 51 ++++++++++++++++++++++++++++----------------------- 1 file changed, 28 insertions(+), 23 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 58ae34c..98fcf5a 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1140,27 +1140,6 @@ xfs_bioerror_relse( return -EIO; } -STATIC int -xfs_bdstrat_cb( - struct xfs_buf *bp) -{ - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - /* - * Metadata write that didn't get logged but - * written delayed anyway. These aren't associated - * with a transaction, and can be ignored. - */ - if (!bp->b_iodone && !XFS_BUF_ISREAD(bp)) - return xfs_bioerror_relse(bp); - else - return xfs_bioerror(bp); - } - - xfs_buf_iorequest(bp); - return 0; -} - int xfs_bwrite( struct xfs_buf *bp) @@ -1172,7 +1151,20 @@ xfs_bwrite( bp->b_flags |= XBF_WRITE; bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL); - xfs_bdstrat_cb(bp); + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + trace_xfs_bdstrat_shut(bp, _RET_IP_); + + /* + * Metadata write that didn't get logged but written anyway. + * These aren't associated with a transaction, and can be + * ignored. + */ + if (!bp->b_iodone) + return xfs_bioerror_relse(bp); + return xfs_bioerror(bp); + } + + xfs_buf_iorequest(bp); error = xfs_buf_iowait(bp); if (error) { @@ -1852,7 +1844,20 @@ __xfs_buf_delwri_submit( bp->b_flags |= XBF_ASYNC; list_del_init(&bp->b_list); } - xfs_bdstrat_cb(bp); + + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + trace_xfs_bdstrat_shut(bp, _RET_IP_); + + /* + * Metadata write that didn't get logged but written anyway. + * These aren't associated with a transaction, and can be + * ignored. + */ + if (!bp->b_iodone) + return xfs_bioerror_relse(bp); + return xfs_bioerror(bp); + } + xfs_buf_iorequest(bp); } blk_finish_plug(&plug); -- 2.0.0 From dave@fromorbit.com Fri Aug 15 01:39:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 17B7B29DFD for ; Fri, 15 Aug 2014 01:39:20 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id EB8B48F8052 for ; Thu, 14 Aug 2014 23:39:19 -0700 (PDT) X-ASG-Debug-ID: 1408084753-04cbb054881f0d0003-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id YedCTnHiRhJFUiV4 for ; Thu, 14 Aug 2014 23:39:17 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ak0PAJmq7VN5LDJ8PGdsb2JhbABagw2BKoczp2YBAQEBAQEGhVGhYxcFAQEBATg2hAQBBScvMwgYMTkDBxQQCYhBxT6FfI4jBYYQoi+MZysvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 15 Aug 2014 16:09:11 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XIBAL-0001ZW-DB for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XIBAL-0001Uo-CI for xfs@oss.sgi.com; Fri, 15 Aug 2014 16:39:09 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Date: Fri, 15 Aug 2014 16:39:06 +1000 X-ASG-Orig-Subj: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-Id: <1408084747-4540-9-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408084747-4540-1-git-send-email-david@fromorbit.com> References: <1408084747-4540-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408084756 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8461 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner There is a lot of cookie-cutter code that looks like: if (shutdown) handle buffer error xfs_buf_iorequest(bp) error = xfs_buf_iowait(bp) if (error) handle buffer error spread through XFS. There's significant complexity now in xfs_buf_iorequest() to specifically handle this sort of synchronous IO pattern, but there's all sorts of nasty surprises in different error handling code dependent on who owns the buffer references and the locks. Pull this pattern into a single helper, where we can hide all the synchronous IO warts and hence make the error handling for all the callers much saner. This removes the need for a special extra reference to protect IO completion processing, as we can now hold a single reference across dispatch and waiting, simplifying the sync IO smeantics and error handling. In doing this, also rename xfs_buf_iorequest to xfs_buf_submit and make it explicitly handle on asynchronous IO. This forces all users to be switched specifically to one interface or the other and removes any ambiguity between how the interfaces are to be used. It also means that xfs_buf_iowait() goes away. For the special case of delwri buffer submission and waiting, we don't need to issue IO synchronously at all. The second pass to cal xfs_buf_iowait() can now just block on xfs_buf_lock() - the buffer will be unlocked when the async IO is complete. This formalises a sane the method of waiting for async IO - take an extra reference, submit the IO, call xfs_buf_lock() when you want to wait for IO completion. i.e.: bp = xfs_buf_find(); xfs_buf_hold(bp); bp->b_flags |= XBF_ASYNC; xfs_buf_iosubmit(bp); xfs_buf_lock(bp) error = bp->b_error; .... xfs_buf_relse(bp); Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 14 +--- fs/xfs/xfs_buf.c | 186 ++++++++++++++++++++++++++--------------------- fs/xfs/xfs_buf.h | 4 +- fs/xfs/xfs_buf_item.c | 4 +- fs/xfs/xfs_log.c | 2 +- fs/xfs/xfs_log_recover.c | 22 ++---- fs/xfs/xfs_trans_buf.c | 17 ++--- 7 files changed, 122 insertions(+), 127 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 2f1e30d..c53cc03 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1157,12 +1157,7 @@ xfs_zero_remaining_bytes( XFS_BUF_READ(bp); XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); - if (XFS_FORCED_SHUTDOWN(mp)) { - error = -EIO; - break; - } - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { xfs_buf_ioerror_alert(bp, "xfs_zero_remaining_bytes(read)"); @@ -1175,12 +1170,7 @@ xfs_zero_remaining_bytes( XFS_BUF_UNREAD(bp); XFS_BUF_WRITE(bp); - if (XFS_FORCED_SHUTDOWN(mp)) { - error = -EIO; - break; - } - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { xfs_buf_ioerror_alert(bp, "xfs_zero_remaining_bytes(write)"); diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 352e9219..a2599f9 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -623,10 +623,11 @@ _xfs_buf_read( bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); - xfs_buf_iorequest(bp); - if (flags & XBF_ASYNC) + if (flags & XBF_ASYNC) { + xfs_buf_submit(bp); return 0; - return xfs_buf_iowait(bp); + } + return xfs_buf_submit_wait(bp); } xfs_buf_t * @@ -708,12 +709,7 @@ xfs_buf_read_uncached( bp->b_flags |= XBF_READ; bp->b_ops = ops; - if (XFS_FORCED_SHUTDOWN(target->bt_mount)) { - xfs_buf_relse(bp); - return NULL; - } - xfs_buf_iorequest(bp); - xfs_buf_iowait(bp); + xfs_buf_submit_wait(bp); return bp; } @@ -1027,10 +1023,8 @@ xfs_buf_ioend( (*(bp->b_iodone))(bp); else if (bp->b_flags & XBF_ASYNC) xfs_buf_relse(bp); - else { + else complete(&bp->b_iowait); - xfs_buf_rele(bp); - } } static void @@ -1083,21 +1077,7 @@ xfs_bwrite( bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL | XBF_DONE); - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); - - /* sync IO, xfs_buf_ioend is going to remove a ref here */ - xfs_buf_hold(bp); - xfs_buf_ioend(bp); - return -EIO; - } - - xfs_buf_iorequest(bp); - - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { xfs_force_shutdown(bp->b_target->bt_mount, SHUTDOWN_META_IO_ERROR); @@ -1206,7 +1186,7 @@ next_chunk: } else { /* * This is guaranteed not to be the last io reference count - * because the caller (xfs_buf_iorequest) holds a count itself. + * because the caller (xfs_buf_submit) holds a count itself. */ atomic_dec(&bp->b_io_remaining); xfs_buf_ioerror(bp, -EIO); @@ -1296,13 +1276,29 @@ _xfs_buf_ioapply( blk_finish_plug(&plug); } +/* + * Asynchronous IO submission path. This transfers the buffer lock ownership and + * the current reference to the IO. It is not safe to reference the buffer after + * a call to this function unless the caller holds an additional reference + * itself. + */ void -xfs_buf_iorequest( - xfs_buf_t *bp) +xfs_buf_submit( + struct xfs_buf *bp) { trace_xfs_buf_iorequest(bp, _RET_IP_); ASSERT(!(bp->b_flags & _XBF_DELWRI_Q)); + ASSERT(bp->b_flags & XBF_ASYNC); + + /* on shutdown we stale and complete the buffer immediately */ + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + xfs_buf_ioerror(bp, -EIO); + bp->b_flags &= ~XBF_DONE; + xfs_buf_stale(bp); + xfs_buf_ioend(bp); + return; + } if (bp->b_flags & XBF_WRITE) xfs_buf_wait_unpin(bp); @@ -1311,25 +1307,10 @@ xfs_buf_iorequest( bp->b_io_error = 0; /* - * Take references to the buffer. For XBF_ASYNC buffers, holding a - * reference for as long as submission takes is all that is necessary - * here. The IO inherits the lock and hold count from the submitter, - * and these are release during IO completion processing. Taking a hold - * over submission ensures that the buffer is not freed until we have - * completed all processing, regardless of when IO errors occur or are - * reported. - * - * However, for synchronous IO, the IO does not inherit the submitters - * reference count, nor the buffer lock. Hence we need to take an extra - * reference to the buffer for the for the IO context so that we can - * guarantee the buffer is not freed until all IO completion processing - * is done. Otherwise the caller can drop their reference while the IO - * is still in progress and hence trigger a use-after-free situation. + * Take an extra reference so that we don't have to guess when it's no + * longer safe to reference the buffer that was passed to us. */ xfs_buf_hold(bp); - if (!(bp->b_flags & XBF_ASYNC)) - xfs_buf_hold(bp); - /* * Set the count to 1 initially, this will stop an I/O completion @@ -1340,14 +1321,13 @@ xfs_buf_iorequest( _xfs_buf_ioapply(bp); /* - * If _xfs_buf_ioapply failed or we are doing synchronous IO that - * completes extremely quickly, we can get back here with only the IO + * If _xfs_buf_ioapply failed, + * we can get back here with only the IO * reference we took above. _xfs_buf_ioend will drop it to zero, so * we'd better run completion processing synchronously so that the we - * don't return to the caller with completion still pending. In the - * error case, this allows the caller to check b_error safely without - * waiting, and in the synchronous IO case it avoids unnecessary context - * switches an latency for high-peformance devices. + * don't return to the caller with completion still pending. + * this allows the caller to check b_error safely without + * waiting */ if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) @@ -1357,25 +1337,70 @@ xfs_buf_iorequest( } xfs_buf_rele(bp); + /* Note: it is not safe to reference bp now we've dropped our ref */ } /* - * Waits for I/O to complete on the buffer supplied. It returns immediately if - * no I/O is pending or there is already a pending error on the buffer, in which - * case nothing will ever complete. It returns the I/O error code, if any, or - * 0 if there was no error. + * Synchronous buffer IO submission path, read or write. */ int -xfs_buf_iowait( - xfs_buf_t *bp) +xfs_buf_submit_wait( + struct xfs_buf *bp) { - trace_xfs_buf_iowait(bp, _RET_IP_); + int error; + + trace_xfs_buf_iorequest(bp, _RET_IP_); - if (!bp->b_error) - wait_for_completion(&bp->b_iowait); + ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); + + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { + xfs_buf_ioerror(bp, -EIO); + xfs_buf_stale(bp); + bp->b_flags &= ~XBF_DONE; + return -EIO; + } + if (bp->b_flags & XBF_WRITE) + xfs_buf_wait_unpin(bp); + + /* clear the internal error state to avoid spurious errors */ + bp->b_io_error = 0; + + /* + * For synchronous IO, the IO does not inherit the submitters reference + * count, nor the buffer lock. Hence we cannot release the reference we + * are about to take until we've waited for all IO completion to occur, + * including any xfs_buf_ioend_async() work that may be pending. + */ + xfs_buf_hold(bp); + + /* + * Set the count to 1 initially, this will stop an I/O completion + * callout which happens before we have started all the I/O from calling + * xfs_buf_ioend too early. + */ + atomic_set(&bp->b_io_remaining, 1); + _xfs_buf_ioapply(bp); + + /* + * make sure we run completion synchronously if it raced with us and is + * already complete. + */ + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) + xfs_buf_ioend(bp); + + /* wait for completion before gathering the error from the buffer */ + trace_xfs_buf_iowait(bp, _RET_IP_); + wait_for_completion(&bp->b_iowait); trace_xfs_buf_iowait_done(bp, _RET_IP_); - return bp->b_error; + error = bp->b_error; + + /* + * all done now, we can release the hold that keeps the buffer + * referenced for the entire IO. + */ + xfs_buf_rele(bp); + return error; } xfs_caddr_t @@ -1769,29 +1794,19 @@ __xfs_buf_delwri_submit( blk_start_plug(&plug); list_for_each_entry_safe(bp, n, io_list, b_list) { bp->b_flags &= ~(_XBF_DELWRI_Q | XBF_ASYNC | XBF_WRITE_FAIL); - bp->b_flags |= XBF_WRITE; + bp->b_flags |= XBF_WRITE | XBF_ASYNC; - if (!wait) { - bp->b_flags |= XBF_ASYNC; + /* + * we do all Io submission async. This means if we need to wait + * for IO completion we need to take an extra reference so the + * buffer is still valid on the other side. + */ + if (!wait) list_del_init(&bp->b_list); - } - - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - - xfs_buf_ioerror(bp, -EIO); - xfs_buf_stale(bp); + else + xfs_buf_hold(bp); - /* - * if sync IO, xfs_buf_ioend is going to remove a - * ref here. We need to add that so we can collect - * all the buffer errors in the wait loop. - */ - if (wait) - xfs_buf_hold(bp); - xfs_buf_ioend(bp); - } else - xfs_buf_iorequest(bp); + xfs_buf_submit(bp); } blk_finish_plug(&plug); @@ -1838,7 +1853,10 @@ xfs_buf_delwri_submit( bp = list_first_entry(&io_list, struct xfs_buf, b_list); list_del_init(&bp->b_list); - error2 = xfs_buf_iowait(bp); + + /* locking the buffer will wait for async IO completion. */ + xfs_buf_lock(bp); + error2 = bp->b_error; xfs_buf_relse(bp); if (!error) error = error2; diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h index d8f57f6..0acfc30 100644 --- a/fs/xfs/xfs_buf.h +++ b/fs/xfs/xfs_buf.h @@ -290,8 +290,8 @@ extern int xfs_bwrite(struct xfs_buf *bp); extern void xfs_buf_ioend(struct xfs_buf *bp); extern void xfs_buf_ioerror(xfs_buf_t *, int); extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); -extern void xfs_buf_iorequest(xfs_buf_t *); -extern int xfs_buf_iowait(xfs_buf_t *); +extern void xfs_buf_submit(struct xfs_buf *bp); +extern int xfs_buf_submit_wait(struct xfs_buf *bp); extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, xfs_buf_rw_t); #define xfs_buf_zero(bp, off, len) \ diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 4fd41b5..cbea909 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -1081,7 +1081,7 @@ xfs_buf_iodone_callbacks( * a way to shut the filesystem down if the writes keep failing. * * In practice we'll shut the filesystem down soon as non-transient - * erorrs tend to affect the whole device and a failing log write + * errors tend to affect the whole device and a failing log write * will make us give up. But we really ought to do better here. */ if (XFS_BUF_ISASYNC(bp)) { @@ -1094,7 +1094,7 @@ xfs_buf_iodone_callbacks( if (!(bp->b_flags & (XBF_STALE|XBF_WRITE_FAIL))) { bp->b_flags |= XBF_WRITE | XBF_ASYNC | XBF_DONE | XBF_WRITE_FAIL; - xfs_buf_iorequest(bp); + xfs_buf_submit(bp); } else { xfs_buf_relse(bp); } diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index e4665db..c4d7f79 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1699,7 +1699,7 @@ xlog_bdstrat( return 0; } - xfs_buf_iorequest(bp); + xfs_buf_submit(bp); return 0; } diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 4ba19bf..1e14452 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -193,12 +193,8 @@ xlog_bread_noalign( bp->b_io_length = nbblks; bp->b_error = 0; - if (XFS_FORCED_SHUTDOWN(log->l_mp)) - return -EIO; - - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); - if (error) + error = xfs_buf_submit_wait(bp); + if (error && !XFS_FORCED_SHUTDOWN(log->l_mp)) xfs_buf_ioerror_alert(bp, __func__); return error; } @@ -4427,16 +4423,12 @@ xlog_do_recover( XFS_BUF_UNASYNC(bp); bp->b_ops = &xfs_sb_buf_ops; - if (XFS_FORCED_SHUTDOWN(log->l_mp)) { - xfs_buf_relse(bp); - return -EIO; - } - - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { - xfs_buf_ioerror_alert(bp, __func__); - ASSERT(0); + if (XFS_FORCED_SHUTDOWN(log->l_mp)) { + xfs_buf_ioerror_alert(bp, __func__); + ASSERT(0); + } xfs_buf_relse(bp); return error; } diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c index 9c3e610..4bdf02c 100644 --- a/fs/xfs/xfs_trans_buf.c +++ b/fs/xfs/xfs_trans_buf.c @@ -286,18 +286,13 @@ xfs_trans_read_buf_map( bp->b_flags |= XBF_READ; bp->b_ops = ops; - if (XFS_FORCED_SHUTDOWN(mp)) { - trace_xfs_bdstrat_shut(bp, _RET_IP_); - error = -EIO; - goto out_stale; - } - - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); + error = xfs_buf_submit_wait(bp); if (error) { - xfs_buf_ioerror_alert(bp, __func__); - goto out_do_shutdown; - + if (!XFS_FORCED_SHUTDOWN(mp)) { + xfs_buf_ioerror_alert(bp, __func__); + goto out_do_shutdown; + } + goto out_stale; } } -- 2.0.0 From BATV+7522b9d5d1019e41b41d+4009+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 15 07:56:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id EDCEB7F3F for ; Fri, 15 Aug 2014 07:56:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7CB56AC006 for ; Fri, 15 Aug 2014 05:56:10 -0700 (PDT) X-ASG-Debug-ID: 1408107368-04cbb054872a430001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id AbSJb1D9BNaeIYSL (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 05:56:09 -0700 (PDT) X-Barracuda-Envelope-From: BATV+7522b9d5d1019e41b41d+4009+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XIH3A-0001RS-Bc; Fri, 15 Aug 2014 12:56:08 +0000 Date: Fri, 15 Aug 2014 05:56:08 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly Message-ID: <20140815125608.GA27856@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-10-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-10-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1408107369 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8470 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Aug 15, 2014 at 04:39:07PM +1000, Dave Chinner wrote: > From: Dave Chinner > > xfs_buf_read_uncached() has two failure modes. If can either return > NULL or bp->b_error != 0 depending on the type of failure, and not > all callers check for both. Fix it up. I'd rather get rid of these annoying calling conventions. Make it return and errno, and the bp in a pointer argument, with the bp never non-NULL in case of error. From BATV+7522b9d5d1019e41b41d+4009+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 15 08:10:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B09967F3F for ; Fri, 15 Aug 2014 08:10:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 73AA18F8089 for ; Fri, 15 Aug 2014 06:10:22 -0700 (PDT) X-ASG-Debug-ID: 1408108220-04bdf018552d090001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id CzsAbCThTgyHv5v3 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 06:10:20 -0700 (PDT) X-Barracuda-Envelope-From: BATV+7522b9d5d1019e41b41d+4009+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XIHGu-000836-AS; Fri, 15 Aug 2014 13:10:20 +0000 Date: Fri, 15 Aug 2014 06:10:20 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140815131020.GB27856@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-9-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1408108220 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8470 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 2f1e30d..c53cc03 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1157,12 +1157,7 @@ xfs_zero_remaining_bytes( xfs_zero_remaining_bytes really should be switched to xfs_buf_read_uncached + xfs_bwrite instead of all this mess just to micro-optimize a few memory allocation away that don't even happen for the common case of blocksize == PAGE_SIZE. I'm not even sure we should be using the buffer cache at all for something inside a regular file, but that's a discussion for another time. > void > +xfs_buf_submit( > + struct xfs_buf *bp) > { > trace_xfs_buf_iorequest(bp, _RET_IP_); I suspect these two should have properly name and separate trace points now? It also seems like a lot of the guts of the two functions are still the same, so factoring that into a __xfs_buf_submit helper would be useful. > + * If _xfs_buf_ioapply failed, > + * we can get back here with only the IO > * reference we took above. _xfs_buf_ioend will drop it to zero, so > * we'd better run completion processing synchronously so that the we > + * don't return to the caller with completion still pending. > + * this allows the caller to check b_error safely without > + * waiting > */ > if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) I don't think the !ASYNC case can happen here, can it? > + if (!wait) > list_del_init(&bp->b_list); > + else > + xfs_buf_hold(bp); Maybe switch this around to avoid the negated condition in the if else? Also might this be worth a change of it's own? > +++ b/fs/xfs/xfs_trans_buf.c > @@ -286,18 +286,13 @@ xfs_trans_read_buf_map( > bp->b_flags |= XBF_READ; > bp->b_ops = ops; > > + error = xfs_buf_submit_wait(bp); > if (error) { > + if (!XFS_FORCED_SHUTDOWN(mp)) { > + xfs_buf_ioerror_alert(bp, __func__); > + goto out_do_shutdown; > + } > + goto out_stale; Again maybe reverse the conditions here for a cleaner flow? From bfoster@redhat.com Fri Aug 15 08:18:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 68A927F3F for ; Fri, 15 Aug 2014 08:18:14 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3A649304043 for ; Fri, 15 Aug 2014 06:18:11 -0700 (PDT) X-ASG-Debug-ID: 1408108689-04bdf018542d520001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id AKluUN1lukmcygm3 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 06:18:09 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FDI78I015174 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 09:18:07 -0400 Received: from laptop.bfoster (vpn-59-245.rdu2.redhat.com [10.10.59.245]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FDI4ql020228 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 15 Aug 2014 09:18:06 -0400 Date: Fri, 15 Aug 2014 09:18:04 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference Message-ID: <20140815131804.GA4096@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408108689 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 15, 2014 at 04:38:59PM +1000, Dave Chinner wrote: > From: Dave Chinner > > When synchronous IO runs IO completion work, it does so without an > IO reference or a hold reference on the buffer. The IO "hold > reference" is owned by the submitter, and released when the > submission is complete. The IO reference is released when both the > submitter and the bio end_io processing is run, and so if the io > completion work is run from IO completion context, it is run without > an IO reference. > > Hence we can get the situation where the submitter can submit the > IO, see an error on the buffer and unlock and free the buffer while > there is still IO in progress. This leads to use-after-free and > memory corruption. > > Fix this by taking a "sync IO hold" reference that is owned by the > IO and not released until after the buffer completion calls are run > to wake up synchronous waiters. This means that the buffer will not > be freed in any circumstance until all IO processing is completed. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_buf.c | 46 ++++++++++++++++++++++++++++++++++++++-------- > 1 file changed, 38 insertions(+), 8 deletions(-) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index cd7b8ca..5d86bbd 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -1019,6 +1019,7 @@ xfs_buf_iodone_work( > else { > ASSERT(read && bp->b_ops); > complete(&bp->b_iowait); > + xfs_buf_rele(bp); /* !XBF_ASYNC ref */ > } > } > > @@ -1044,6 +1045,7 @@ xfs_buf_ioend( > } else { > bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); > complete(&bp->b_iowait); > + xfs_buf_rele(bp); /* !XBF_ASYNC ref */ > } > } > > @@ -1383,22 +1385,50 @@ xfs_buf_iorequest( > > if (bp->b_flags & XBF_WRITE) > xfs_buf_wait_unpin(bp); > + > + /* > + * Take references to the buffer. For XBF_ASYNC buffers, holding a > + * reference for as long as submission takes is all that is necessary > + * here. The IO inherits the lock and hold count from the submitter, > + * and these are release during IO completion processing. Taking a hold > + * over submission ensures that the buffer is not freed until we have > + * completed all processing, regardless of when IO errors occur or are > + * reported. > + * > + * However, for synchronous IO, the IO does not inherit the submitters > + * reference count, nor the buffer lock. Hence we need to take an extra > + * reference to the buffer for the for the IO context so that we can > + * guarantee the buffer is not freed until all IO completion processing > + * is done. Otherwise the caller can drop their reference while the IO > + * is still in progress and hence trigger a use-after-free situation. > + */ > xfs_buf_hold(bp); > + if (!(bp->b_flags & XBF_ASYNC)) > + xfs_buf_hold(bp); > + > > /* > - * Set the count to 1 initially, this will stop an I/O > - * completion callout which happens before we have started > - * all the I/O from calling xfs_buf_ioend too early. > + * Set the count to 1 initially, this will stop an I/O completion > + * callout which happens before we have started all the I/O from calling > + * xfs_buf_ioend too early. > */ > atomic_set(&bp->b_io_remaining, 1); > _xfs_buf_ioapply(bp); > + > /* > - * If _xfs_buf_ioapply failed, we'll get back here with > - * only the reference we took above. _xfs_buf_ioend will > - * drop it to zero, so we'd better not queue it for later, > - * or we'll free it before it's done. > + * If _xfs_buf_ioapply failed or we are doing synchronous IO that > + * completes extremely quickly, we can get back here with only the IO > + * reference we took above. _xfs_buf_ioend will drop it to zero, so > + * we'd better run completion processing synchronously so that the we > + * don't return to the caller with completion still pending. In the > + * error case, this allows the caller to check b_error safely without > + * waiting, and in the synchronous IO case it avoids unnecessary context > + * switches an latency for high-peformance devices. > */ AFAICT there is no real wait if the buf has completed at this point. The wait just decrements the completion counter. So what's the benefit of "not waiting?" Where is the potential context switch? Are you referring to the case where error is set but I/O is not complete? Are you saying the advantage to the caller is it doesn't have to care about the state of further I/O once it has been determined at least one error has occurred? (If so, who cares about latency given that some operation that depends on this I/O is already doomed to fail?). The code looks fine, but I'm trying to understand the reasoning better (and I suspect we can clarify the comment). > - _xfs_buf_ioend(bp, bp->b_error ? 0 : 1); > + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > + _xfs_buf_ioend(bp, 0); > + else > + _xfs_buf_ioend(bp, 1); Not related to this patch, but it seems like the problem this code tries to address is still possible. Perhaps this papers over a particular instance. Consider the case where an I/O fails immediately after this call completes, but not before. We have an extra reference now for completion, but we can still return to the caller with completion pending. I suppose its fine if we consider the "problem" to be that the reference goes away underneath the completion, as opposed to the caller caring about the status of completion. Brian > > xfs_buf_rele(bp); > } > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 15 08:18:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3F03A7F3F for ; Fri, 15 Aug 2014 08:18:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 1FACC304043 for ; Fri, 15 Aug 2014 06:18:27 -0700 (PDT) X-ASG-Debug-ID: 1408108705-04cb6c54fd27890001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id VaY5IgbfASTKNuei (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 06:18:25 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FDINZU003433 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 09:18:24 -0400 Received: from laptop.bfoster (vpn-59-245.rdu2.redhat.com [10.10.59.245]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FDILm6015910 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 15 Aug 2014 09:18:23 -0400 Date: Fri, 15 Aug 2014 09:18:21 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-ID: <20140815131820.GB4096@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408108705 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 15, 2014 at 04:39:00PM +1000, Dave Chinner wrote: > From: Dave Chinner > > We do some work in xfs_buf_ioend, and some work in > xfs_buf_iodone_work, but much of that functionality is the same. > This work can all be done in a single function, leaving > xfs_buf_iodone just a wrapper to determine if we should execute it > by workqueue or directly. hence rename xfs_buf_iodone_work to > xfs_buf_ioend(), and add a new xfs_buf_ioend_async() for places that > need async processing. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_buf.c | 79 +++++++++++++++++++++--------------------------- > fs/xfs/xfs_buf.h | 2 +- > fs/xfs/xfs_buf_item.c | 4 +-- > fs/xfs/xfs_inode.c | 2 +- > fs/xfs/xfs_log.c | 2 +- > fs/xfs/xfs_log_recover.c | 2 +- > 6 files changed, 40 insertions(+), 51 deletions(-) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 5d86bbd..1b7f0bc 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -999,54 +999,49 @@ xfs_buf_wait_unpin( > */ > > STATIC void > -xfs_buf_iodone_work( > - struct work_struct *work) > +xfs_buf_ioend( > + struct xfs_buf *bp) Compile failure here due to STATIC. > { > - struct xfs_buf *bp = > - container_of(work, xfs_buf_t, b_iodone_work); > - bool read = !!(bp->b_flags & XBF_READ); > + bool read = !!(bp->b_flags & XBF_READ); > + > + trace_xfs_buf_iodone(bp, _RET_IP_); > > bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); > > - /* only validate buffers that were read without errors */ > - if (read && bp->b_ops && !bp->b_error && (bp->b_flags & XBF_DONE)) > - bp->b_ops->verify_read(bp); > + if (!bp->b_error) { > + bp->b_flags |= XBF_DONE; > + > + /* only validate buffers that were read without errors */ > + if (read && bp->b_ops) > + bp->b_ops->verify_read(bp); > + } Probably not a cause of errors, but this code is now executed twice for I/O with b_iodone callbacks. Once for the initial call from bio_end_io, again from the callback via the b_iodone handler. The flags bits are probably fine, but we don't want to be running the verifiers multiple times unnecessarily. > > if (bp->b_iodone) > (*(bp->b_iodone))(bp); > else if (bp->b_flags & XBF_ASYNC) > xfs_buf_relse(bp); > else { > - ASSERT(read && bp->b_ops); > complete(&bp->b_iowait); > xfs_buf_rele(bp); > } > } > > -void > -xfs_buf_ioend( > - struct xfs_buf *bp, > - int schedule) > +static void > +xfs_buf_ioend_work( > + struct work_struct *work) > { > - bool read = !!(bp->b_flags & XBF_READ); > - > - trace_xfs_buf_iodone(bp, _RET_IP_); > + struct xfs_buf *bp = > + container_of(work, xfs_buf_t, b_iodone_work); > > - if (bp->b_error == 0) > - bp->b_flags |= XBF_DONE; > + xfs_buf_ioend(bp); > +} > > - if (bp->b_iodone || (read && bp->b_ops) || (bp->b_flags & XBF_ASYNC)) { > - if (schedule) { > - INIT_WORK(&bp->b_iodone_work, xfs_buf_iodone_work); > - queue_work(xfslogd_workqueue, &bp->b_iodone_work); > - } else { > - xfs_buf_iodone_work(&bp->b_iodone_work); > - } > - } else { > - bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); > - complete(&bp->b_iowait); > - xfs_buf_rele(bp); > - } > +void > +xfs_buf_ioend_async( > + struct xfs_buf *bp) > +{ > + INIT_WORK(&bp->b_iodone_work, xfs_buf_ioend_work); > + queue_work(xfslogd_workqueue, &bp->b_iodone_work); > } > > void > @@ -1094,7 +1089,7 @@ xfs_bioerror( > XFS_BUF_UNDONE(bp); > xfs_buf_stale(bp); > > - xfs_buf_ioend(bp, 0); > + xfs_buf_ioend(bp); > > return -EIO; > } > @@ -1181,15 +1176,6 @@ xfs_bwrite( > } > > STATIC void > -_xfs_buf_ioend( > - xfs_buf_t *bp, > - int schedule) > -{ > - if (atomic_dec_and_test(&bp->b_io_remaining) == 1) > - xfs_buf_ioend(bp, schedule); > -} > - > -STATIC void > xfs_buf_bio_end_io( > struct bio *bio, > int error) > @@ -1206,7 +1192,8 @@ xfs_buf_bio_end_io( > if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) > invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); > > - _xfs_buf_ioend(bp, 1); > + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) > + xfs_buf_ioend_async(bp); > bio_put(bio); > } > > @@ -1425,10 +1412,12 @@ xfs_buf_iorequest( > * waiting, and in the synchronous IO case it avoids unnecessary context > * switches an latency for high-peformance devices. > */ > - if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > - _xfs_buf_ioend(bp, 0); > - else > - _xfs_buf_ioend(bp, 1); > + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > + xfs_buf_ioend(bp); > + else > + xfs_buf_ioend_async(bp); > + } This looks cleaner, but the comment is out of whack at this point. Brian > > xfs_buf_rele(bp); > } > diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > index c753183..4585c15 100644 > --- a/fs/xfs/xfs_buf.h > +++ b/fs/xfs/xfs_buf.h > @@ -286,7 +286,7 @@ extern void xfs_buf_unlock(xfs_buf_t *); > > /* Buffer Read and Write Routines */ > extern int xfs_bwrite(struct xfs_buf *bp); > -extern void xfs_buf_ioend(xfs_buf_t *, int); > +extern void xfs_buf_ioend(struct xfs_buf *bp); > extern void xfs_buf_ioerror(xfs_buf_t *, int); > extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); > extern void xfs_buf_iorequest(xfs_buf_t *); > diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c > index 76007de..4fd41b5 100644 > --- a/fs/xfs/xfs_buf_item.c > +++ b/fs/xfs/xfs_buf_item.c > @@ -491,7 +491,7 @@ xfs_buf_item_unpin( > xfs_buf_ioerror(bp, -EIO); > XFS_BUF_UNDONE(bp); > xfs_buf_stale(bp); > - xfs_buf_ioend(bp, 0); > + xfs_buf_ioend(bp); > } > } > > @@ -1115,7 +1115,7 @@ do_callbacks: > xfs_buf_do_callbacks(bp); > bp->b_fspriv = NULL; > bp->b_iodone = NULL; > - xfs_buf_ioend(bp, 0); > + xfs_buf_ioend(bp); > } > > /* > diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c > index fea3c92..00d210b 100644 > --- a/fs/xfs/xfs_inode.c > +++ b/fs/xfs/xfs_inode.c > @@ -3056,7 +3056,7 @@ cluster_corrupt_out: > XFS_BUF_UNDONE(bp); > xfs_buf_stale(bp); > xfs_buf_ioerror(bp, -EIO); > - xfs_buf_ioend(bp, 0); > + xfs_buf_ioend(bp); > } else { > xfs_buf_stale(bp); > xfs_buf_relse(bp); > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index 8eaa8f5..e4665db 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -1689,7 +1689,7 @@ xlog_bdstrat( > if (iclog->ic_state & XLOG_STATE_IOERROR) { > xfs_buf_ioerror(bp, -EIO); > xfs_buf_stale(bp); > - xfs_buf_ioend(bp, 0); > + xfs_buf_ioend(bp); > /* > * It would seem logical to return EIO here, but we rely on > * the log state machine to propagate I/O errors instead of > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 1fd5787..4ba19bf 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -383,7 +383,7 @@ xlog_recover_iodone( > SHUTDOWN_META_IO_ERROR); > } > bp->b_iodone = NULL; > - xfs_buf_ioend(bp, 0); > + xfs_buf_ioend(bp); > } > > /* > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 15 08:18:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8E79E7F3F for ; Fri, 15 Aug 2014 08:18:42 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7CFE130404E for ; Fri, 15 Aug 2014 06:18:42 -0700 (PDT) X-ASG-Debug-ID: 1408108721-04cb6c5500278d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Q8QZNhcRaDF7CaEQ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 06:18:41 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FDId5u001656 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 09:18:39 -0400 Received: from laptop.bfoster (vpn-59-245.rdu2.redhat.com [10.10.59.245]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FDIbDc017080 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 15 Aug 2014 09:18:39 -0400 Date: Fri, 15 Aug 2014 09:18:37 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling Message-ID: <20140815131836.GC4096@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408108721 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 15, 2014 at 04:39:01PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Currently the report of a bio error from completion > immediately marks the buffer with an error. The issue is that this > is racy w.r.t. synchronous IO - the submitter can see b_error being > set before the IO is complete, and hence we cannot differentiate > between submission failures and completion failures. > > Add an internal b_io_error field protected by the b_lock to catch IO > completion errors, and only propagate that to the buffer during > final IO completion handling. Hence we can tell in xfs_buf_iorequest > if we've had a submission failure bey checking bp->b_error before > dropping our b_io_remaining reference - that reference will prevent > b_io_error values from being propagated to b_error in the event that > completion races with submission. > > In doing so, allow xfs_buf_iorequest to return an error. That way, > the caller can check for submission errors safely if required, and > easily distinguish them from completion errors that come from > xfs_buf_iowait(). > I don't see any changes to xfs_buf_iorequest() at all in this one. That aside, it looks fine. It's not how I was thinking about it, but a clear separation of submission error regardless. Brian > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_buf.c | 18 ++++++++++++++++-- > fs/xfs/xfs_buf.h | 1 + > 2 files changed, 17 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 1b7f0bc..58ae34c 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -1008,6 +1008,13 @@ xfs_buf_ioend( > > bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); > > + /* > + * Pull in IO completion errors now. We are guaranteed to be running > + * single threaded, so we don't need the lock to read b_io_error. > + */ > + if (!bp->b_error && bp->b_io_error) > + xfs_buf_ioerror(bp, bp->b_io_error); > + > if (!bp->b_error) { > bp->b_flags |= XBF_DONE; > > @@ -1186,8 +1193,12 @@ xfs_buf_bio_end_io( > * don't overwrite existing errors - otherwise we can lose errors on > * buffers that require multiple bios to complete. > */ > - if (!bp->b_error) > - xfs_buf_ioerror(bp, error); > + if (error) { > + spin_lock(&bp->b_lock); > + if (!bp->b_io_error) > + bp->b_io_error = error; > + spin_unlock(&bp->b_lock); > + } > > if (!bp->b_error && xfs_buf_is_vmapped(bp) && (bp->b_flags & XBF_READ)) > invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); > @@ -1373,6 +1384,9 @@ xfs_buf_iorequest( > if (bp->b_flags & XBF_WRITE) > xfs_buf_wait_unpin(bp); > > + /* clear the internal error state to avoid spurious errors */ > + bp->b_io_error = 0; > + > /* > * Take references to the buffer. For XBF_ASYNC buffers, holding a > * reference for as long as submission takes is all that is necessary > diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > index 4585c15..44db8cd 100644 > --- a/fs/xfs/xfs_buf.h > +++ b/fs/xfs/xfs_buf.h > @@ -158,6 +158,7 @@ typedef struct xfs_buf { > struct list_head b_lru; /* lru list */ > spinlock_t b_lock; /* internal state lock */ > unsigned int b_state; /* internal state flags */ > + int b_io_error; /* internal IO error state */ > wait_queue_head_t b_waiters; /* unpin waiters */ > struct list_head b_list; > struct xfs_perag *b_pag; /* contains rbtree root */ > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From topjob@compamedia.de Fri Aug 15 09:27:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: *** X-Spam-Status: No, score=3.8 required=5.0 tests=HTML_MESSAGE,LOTS_OF_MONEY, MILLION_USD autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 699477F3F for ; Fri, 15 Aug 2014 09:27:51 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 498F9304039 for ; Fri, 15 Aug 2014 07:27:51 -0700 (PDT) X-ASG-Debug-ID: 1408112866-04cb6c54fd2ac80001-NocioJ Received: from burgcom.burg-halle.de (burgcom.burg-halle.de [212.122.56.1]) by cuda.sgi.com with ESMTP id Htj87kRu18zoyUeW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 07:27:47 -0700 (PDT) X-Barracuda-Envelope-From: topjob@compamedia.de X-Barracuda-Apparent-Source-IP: 212.122.56.1 Received: from localhost (localhost [127.0.0.1]) by burgcom.burg-halle.de (Postfix) with ESMTP id 29989300E53B4 for ; Fri, 15 Aug 2014 16:18:07 +0200 (CEST) Received: from (localhost [127.0.0.1]) by localhost (AvMailGate-3.2.1.26) id 6992-BO8tZN; Fri, 15 Aug 2014 14:15:45 -0000 Received: from WIN-HJGJ9BL9LP4 (unknown [208.89.215.50]) (Authenticated sender: hug) by burgcom.burg-halle.de (Postfix) with ESMTPA id 5360D3027DAC0 for ; Fri, 15 Aug 2014 15:48:26 +0200 (CEST) From: "Asare Akuffo " Subject: Fri, Aug 15, 2014 To: xfs@oss.sgi.com X-ASG-Orig-Subj: Fri, Aug 15, 2014 Content-Type: multipart/alternative; boundary="9Qdh43BxvjASo4uXwhVo5WV=_zm03wPtms0" MIME-Version: 1.0 Reply-To: asakuf@gmail.com Disposition-Notification-To: "Asare Akuffo " Date: Fri, 15 Aug 2014 06:48:21 -0700 X-AntiVirus: checked by Avira MailGate (version: 3.2.1.26; AVE: 8.3.24.12; VDF: 7.11.167.126; host: burgcom.burg-halle.de); id=6992-BO8tZN Message-Id: <20140815141807.29989300E53B4@burgcom.burg-halle.de> X-Barracuda-Connect: burgcom.burg-halle.de[212.122.56.1] X-Barracuda-Start-Time: 1408112867 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 1.79 X-Barracuda-Spam-Status: No, SCORE=1.79 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=ADVANCE_FEE_1, HTML_MESSAGE, MILLION_USD, MILLION_USD_2 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8472 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 MILLION_USD BODY: Talks about millions of dollars 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 ADVANCE_FEE_1 Appears to be advance fee fraud (Nigerian 419) 1.78 MILLION_USD_2 Talks about millions of dollars This is a multi-part message in MIME format --9Qdh43BxvjASo4uXwhVo5WV=_zm03wPtms0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable - This mail is in HTML. Some elements may be ommited in plain text. - Greetings, I am a Financial Consultant with the HFC Bank Limited in Ghana I am in control of privately owned funds placed for long term investme= nts. Our interest is to fund projects in form of Loan. Viable projects rang= ing from 1-500 Million USD would be funded at a guaranteed 3% Fixed In= terest Rate per annum. If you have credible projects for investments or business clients in n= eed of funds to expand existing projects, we would be obliged to work with you. Regards, Asare Akuffo --9Qdh43BxvjASo4uXwhVo5WV=_zm03wPtms0 Content-Type: text/html Content-Transfer-Encoding: quoted-printable

Greetings,

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--9Qdh43BxvjASo4uXwhVo5WV=_zm03wPtms0-- From lczerner@redhat.com Fri Aug 15 09:30:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 84F047F3F for ; Fri, 15 Aug 2014 09:30:33 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 73C1A8F8089 for ; Fri, 15 Aug 2014 07:30:30 -0700 (PDT) X-ASG-Debug-ID: 1408113028-04cbb054872e5f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id B7RbTeRvclfuH9bU (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 07:30:29 -0700 (PDT) X-Barracuda-Envelope-From: lczerner@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FEUQcM006087 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 10:30:26 -0400 Received: from dhcp-1-195.brq.redhat.com (dhcp-1-195.brq.redhat.com [10.34.1.195]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FEUM2U030461 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO); Fri, 15 Aug 2014 10:30:24 -0400 Date: Fri, 15 Aug 2014 16:30:21 +0200 (CEST) From: =?ISO-8859-15?Q?Luk=E1=A8_Czerner?= X-X-Sender: lczerner@localhost.localdomain To: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-btrfs@vger.kernel.org, util-linux@vger.kernel.org cc: Ric Wheeler , Hannes Reinecke Subject: 2014 Linux Plumbers Call for File and Storage Systems Microconference Proposals Message-ID: X-ASG-Orig-Subj: 2014 Linux Plumbers Call for File and Storage Systems Microconference Proposals User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408113029 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Submission for Microconferences discussion topics and BOFs are now open [1] and as a File and Storage Systems [2] microconference leads we'd like to invite you to submit your proposals. You can find the instructions on how to propose a discussion topic here: http://www.linuxplumbersconf.org/2014/how-to-submit-microconference-discussions-topics/ The Linux Plumbers Conference has officially sold out all of the places, so we encourage submissions for our file and storage microconference from people who have already registered. We will work to get exceptionally compelling session leaders registered, but our ability is limited, so please submit your topics early. Deadline for submissions is Friday, August 30th at midnight and we will announce the topics on Monday, September 1st. If you have any questions, please let us know. Thanks! -Lukas -- [1] http://www.linuxplumbersconf.org/2014/submissions-for-microconferences-discussion-topics-and-bofs-are-now-open/ [2] http://www.linuxplumbersconf.org/2014/ocw/events/LPC2014/tracks/303 [3] http://www.linuxplumbersconf.org/2014/how-to-submit-microconference-discussions-topics/ [4] http://wiki.linuxplumbersconf.org/2014:file_and_storage_systems From bfoster@redhat.com Fri Aug 15 09:35:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 091827F3F for ; Fri, 15 Aug 2014 09:35:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id D06FB304043 for ; Fri, 15 Aug 2014 07:35:46 -0700 (PDT) X-ASG-Debug-ID: 1408113345-04cb6c54fd2b350001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Y04sZoE659CcZnAj (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 07:35:46 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FEZh9D007145 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 10:35:43 -0400 Received: from laptop.bfoster (vpn-59-245.rdu2.redhat.com [10.10.59.245]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FEZfRg009023 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 15 Aug 2014 10:35:43 -0400 Date: Fri, 15 Aug 2014 10:35:41 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/9] xfs: xfs_bioerror can die. Message-ID: <20140815143540.GD4096@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 5/9] xfs: xfs_bioerror can die. References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-6-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-6-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408113345 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 15, 2014 at 04:39:03PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Internal buffer write error handling is a mess due to the unnatural > split between xfs_bioerror and xfs_bioerror_relse(). The buffer > reference counting is also wrong for the xfs_bioerror path for > xfs_bwrite - it uses sync IO and so xfs_buf_ioend will release a > hold count that was never taken. > > Further, xfs_bwrite only does sync IO and determines the handler to > call based on b_iodone, so for this caller the only difference > between xfs_bioerror() and xfs_bioerror_release() is the XBF_DONE > flag. We don't care what the XBF_DONE flag state is because we stale > the buffer in both paths - the next buffer lookup will clear > XBF_DONE anyway because XBF_STALE is set. Hence we can use common > error handling for xfs_bwrite(). > > __xfs_buf_delwri_submit() is a similar - it's only ever called > on writes - all sync or async - and again there's no reason to > handle them any differently at all. > > Clean up the nasty error handling and remove xfs_bioerror(). > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_buf.c | 67 +++++++++++++++++--------------------------------------- > 1 file changed, 20 insertions(+), 47 deletions(-) > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 98fcf5a..f444285 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -1072,36 +1072,6 @@ xfs_buf_ioerror_alert( > } > > /* > - * Called when we want to stop a buffer from getting written or read. > - * We attach the EIO error, muck with its flags, and call xfs_buf_ioend > - * so that the proper iodone callbacks get called. > - */ > -STATIC int > -xfs_bioerror( > - xfs_buf_t *bp) > -{ > -#ifdef XFSERRORDEBUG > - ASSERT(XFS_BUF_ISREAD(bp) || bp->b_iodone); > -#endif > - > - /* > - * No need to wait until the buffer is unpinned, we aren't flushing it. > - */ > - xfs_buf_ioerror(bp, -EIO); > - > - /* > - * We're calling xfs_buf_ioend, so delete XBF_DONE flag. > - */ > - XFS_BUF_UNREAD(bp); > - XFS_BUF_UNDONE(bp); > - xfs_buf_stale(bp); > - > - xfs_buf_ioend(bp); > - > - return -EIO; > -} > - > -/* > * Same as xfs_bioerror, except that we are releasing the buffer > * here ourselves, and avoiding the xfs_buf_ioend call. > * This is meant for userdata errors; metadata bufs come with > @@ -1149,19 +1119,19 @@ xfs_bwrite( > ASSERT(xfs_buf_islocked(bp)); > > bp->b_flags |= XBF_WRITE; > - bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL); > + bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | > + XBF_WRITE_FAIL | XBF_DONE); > > if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > trace_xfs_bdstrat_shut(bp, _RET_IP_); > > - /* > - * Metadata write that didn't get logged but written anyway. > - * These aren't associated with a transaction, and can be > - * ignored. > - */ > - if (!bp->b_iodone) > - return xfs_bioerror_relse(bp); > - return xfs_bioerror(bp); > + xfs_buf_ioerror(bp, -EIO); > + xfs_buf_stale(bp); > + > + /* sync IO, xfs_buf_ioend is going to remove a ref here */ > + xfs_buf_hold(bp); Looks correct, but that's kind of ugly. The reference serves no purpose except to appease the error sequence. It gives the impression that the reference management should be handled at a higher level (and with truly synchronous I/O primitives/mechanisms, it is ;). At the very least, can we reorganize the ioend side of things to handle this? We already have the duplicate execution issue previously mentioned that has to get resolved. Some duplicate code is fine if it improves clarity, imo. Brian > + xfs_buf_ioend(bp); > + return -EIO; > } > > xfs_buf_iorequest(bp); > @@ -1848,16 +1818,19 @@ __xfs_buf_delwri_submit( > if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > trace_xfs_bdstrat_shut(bp, _RET_IP_); > > + xfs_buf_ioerror(bp, -EIO); > + xfs_buf_stale(bp); > + > /* > - * Metadata write that didn't get logged but written anyway. > - * These aren't associated with a transaction, and can be > - * ignored. > + * if sync IO, xfs_buf_ioend is going to remove a > + * ref here. We need to add that so we can collect > + * all the buffer errors in the wait loop. > */ > - if (!bp->b_iodone) > - return xfs_bioerror_relse(bp); > - return xfs_bioerror(bp); > - } > - xfs_buf_iorequest(bp); > + if (wait) > + xfs_buf_hold(bp); > + xfs_buf_ioend(bp); > + } else > + xfs_buf_iorequest(bp); > } > blk_finish_plug(&plug); > > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 15 09:36:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 82D077F3F for ; Fri, 15 Aug 2014 09:36:04 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 36CD0304059 for ; Fri, 15 Aug 2014 07:36:04 -0700 (PDT) X-ASG-Debug-ID: 1408113362-04bdf01856310a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3xQVt8dB1H3iOTKG (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 07:36:02 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FEa17S008597 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 10:36:01 -0400 Received: from laptop.bfoster (vpn-59-245.rdu2.redhat.com [10.10.59.245]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FEZwNP009094 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 15 Aug 2014 10:36:00 -0400 Date: Fri, 15 Aug 2014 10:35:58 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140815143558.GE4096@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-9-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408113362 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 15, 2014 at 04:39:06PM +1000, Dave Chinner wrote: > From: Dave Chinner > > There is a lot of cookie-cutter code that looks like: > > if (shutdown) > handle buffer error > xfs_buf_iorequest(bp) > error = xfs_buf_iowait(bp) > if (error) > handle buffer error > > spread through XFS. There's significant complexity now in > xfs_buf_iorequest() to specifically handle this sort of synchronous > IO pattern, but there's all sorts of nasty surprises in different > error handling code dependent on who owns the buffer references and > the locks. > > Pull this pattern into a single helper, where we can hide all the > synchronous IO warts and hence make the error handling for all the > callers much saner. This removes the need for a special extra > reference to protect IO completion processing, as we can now hold a > single reference across dispatch and waiting, simplifying the sync > IO smeantics and error handling. > > In doing this, also rename xfs_buf_iorequest to xfs_buf_submit and > make it explicitly handle on asynchronous IO. This forces all users > to be switched specifically to one interface or the other and > removes any ambiguity between how the interfaces are to be used. It > also means that xfs_buf_iowait() goes away. > > For the special case of delwri buffer submission and waiting, we > don't need to issue IO synchronously at all. The second pass to cal > xfs_buf_iowait() can now just block on xfs_buf_lock() - the buffer > will be unlocked when the async IO is complete. This formalises a > sane the method of waiting for async IO - take an extra reference, > submit the IO, call xfs_buf_lock() when you want to wait for IO > completion. i.e.: > > bp = xfs_buf_find(); > xfs_buf_hold(bp); > bp->b_flags |= XBF_ASYNC; > xfs_buf_iosubmit(bp); > xfs_buf_lock(bp) > error = bp->b_error; > .... > xfs_buf_relse(bp); > > Signed-off-by: Dave Chinner > --- On a quick look at submit_wait this looks pretty good. It actually implements the general model I've been looking for for sync I/O. E.g., send the I/O, wait on synchronization, then check for errors. In other words, a pure synchronous mechanism. The refactoring and new helpers and whatnot are additional bonus and abstract it nicely. I still have to take a closer look to review the actual code, but since we go and remove the additional sync I/O reference counting business, why do we even add that stuff early on? Can't we get from where the current code is to here in a more direct manner? Brian > fs/xfs/xfs_bmap_util.c | 14 +--- > fs/xfs/xfs_buf.c | 186 ++++++++++++++++++++++++++--------------------- > fs/xfs/xfs_buf.h | 4 +- > fs/xfs/xfs_buf_item.c | 4 +- > fs/xfs/xfs_log.c | 2 +- > fs/xfs/xfs_log_recover.c | 22 ++---- > fs/xfs/xfs_trans_buf.c | 17 ++--- > 7 files changed, 122 insertions(+), 127 deletions(-) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 2f1e30d..c53cc03 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1157,12 +1157,7 @@ xfs_zero_remaining_bytes( > XFS_BUF_READ(bp); > XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); > > - if (XFS_FORCED_SHUTDOWN(mp)) { > - error = -EIO; > - break; > - } > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > xfs_buf_ioerror_alert(bp, > "xfs_zero_remaining_bytes(read)"); > @@ -1175,12 +1170,7 @@ xfs_zero_remaining_bytes( > XFS_BUF_UNREAD(bp); > XFS_BUF_WRITE(bp); > > - if (XFS_FORCED_SHUTDOWN(mp)) { > - error = -EIO; > - break; > - } > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > xfs_buf_ioerror_alert(bp, > "xfs_zero_remaining_bytes(write)"); > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 352e9219..a2599f9 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -623,10 +623,11 @@ _xfs_buf_read( > bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); > bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); > > - xfs_buf_iorequest(bp); > - if (flags & XBF_ASYNC) > + if (flags & XBF_ASYNC) { > + xfs_buf_submit(bp); > return 0; > - return xfs_buf_iowait(bp); > + } > + return xfs_buf_submit_wait(bp); > } > > xfs_buf_t * > @@ -708,12 +709,7 @@ xfs_buf_read_uncached( > bp->b_flags |= XBF_READ; > bp->b_ops = ops; > > - if (XFS_FORCED_SHUTDOWN(target->bt_mount)) { > - xfs_buf_relse(bp); > - return NULL; > - } > - xfs_buf_iorequest(bp); > - xfs_buf_iowait(bp); > + xfs_buf_submit_wait(bp); > return bp; > } > > @@ -1027,10 +1023,8 @@ xfs_buf_ioend( > (*(bp->b_iodone))(bp); > else if (bp->b_flags & XBF_ASYNC) > xfs_buf_relse(bp); > - else { > + else > complete(&bp->b_iowait); > - xfs_buf_rele(bp); > - } > } > > static void > @@ -1083,21 +1077,7 @@ xfs_bwrite( > bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | > XBF_WRITE_FAIL | XBF_DONE); > > - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > - trace_xfs_bdstrat_shut(bp, _RET_IP_); > - > - xfs_buf_ioerror(bp, -EIO); > - xfs_buf_stale(bp); > - > - /* sync IO, xfs_buf_ioend is going to remove a ref here */ > - xfs_buf_hold(bp); > - xfs_buf_ioend(bp); > - return -EIO; > - } > - > - xfs_buf_iorequest(bp); > - > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > xfs_force_shutdown(bp->b_target->bt_mount, > SHUTDOWN_META_IO_ERROR); > @@ -1206,7 +1186,7 @@ next_chunk: > } else { > /* > * This is guaranteed not to be the last io reference count > - * because the caller (xfs_buf_iorequest) holds a count itself. > + * because the caller (xfs_buf_submit) holds a count itself. > */ > atomic_dec(&bp->b_io_remaining); > xfs_buf_ioerror(bp, -EIO); > @@ -1296,13 +1276,29 @@ _xfs_buf_ioapply( > blk_finish_plug(&plug); > } > > +/* > + * Asynchronous IO submission path. This transfers the buffer lock ownership and > + * the current reference to the IO. It is not safe to reference the buffer after > + * a call to this function unless the caller holds an additional reference > + * itself. > + */ > void > -xfs_buf_iorequest( > - xfs_buf_t *bp) > +xfs_buf_submit( > + struct xfs_buf *bp) > { > trace_xfs_buf_iorequest(bp, _RET_IP_); > > ASSERT(!(bp->b_flags & _XBF_DELWRI_Q)); > + ASSERT(bp->b_flags & XBF_ASYNC); > + > + /* on shutdown we stale and complete the buffer immediately */ > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > + xfs_buf_ioerror(bp, -EIO); > + bp->b_flags &= ~XBF_DONE; > + xfs_buf_stale(bp); > + xfs_buf_ioend(bp); > + return; > + } > > if (bp->b_flags & XBF_WRITE) > xfs_buf_wait_unpin(bp); > @@ -1311,25 +1307,10 @@ xfs_buf_iorequest( > bp->b_io_error = 0; > > /* > - * Take references to the buffer. For XBF_ASYNC buffers, holding a > - * reference for as long as submission takes is all that is necessary > - * here. The IO inherits the lock and hold count from the submitter, > - * and these are release during IO completion processing. Taking a hold > - * over submission ensures that the buffer is not freed until we have > - * completed all processing, regardless of when IO errors occur or are > - * reported. > - * > - * However, for synchronous IO, the IO does not inherit the submitters > - * reference count, nor the buffer lock. Hence we need to take an extra > - * reference to the buffer for the for the IO context so that we can > - * guarantee the buffer is not freed until all IO completion processing > - * is done. Otherwise the caller can drop their reference while the IO > - * is still in progress and hence trigger a use-after-free situation. > + * Take an extra reference so that we don't have to guess when it's no > + * longer safe to reference the buffer that was passed to us. > */ > xfs_buf_hold(bp); > - if (!(bp->b_flags & XBF_ASYNC)) > - xfs_buf_hold(bp); > - > > /* > * Set the count to 1 initially, this will stop an I/O completion > @@ -1340,14 +1321,13 @@ xfs_buf_iorequest( > _xfs_buf_ioapply(bp); > > /* > - * If _xfs_buf_ioapply failed or we are doing synchronous IO that > - * completes extremely quickly, we can get back here with only the IO > + * If _xfs_buf_ioapply failed, > + * we can get back here with only the IO > * reference we took above. _xfs_buf_ioend will drop it to zero, so > * we'd better run completion processing synchronously so that the we > - * don't return to the caller with completion still pending. In the > - * error case, this allows the caller to check b_error safely without > - * waiting, and in the synchronous IO case it avoids unnecessary context > - * switches an latency for high-peformance devices. > + * don't return to the caller with completion still pending. > + * this allows the caller to check b_error safely without > + * waiting > */ > if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > @@ -1357,25 +1337,70 @@ xfs_buf_iorequest( > } > > xfs_buf_rele(bp); > + /* Note: it is not safe to reference bp now we've dropped our ref */ > } > > /* > - * Waits for I/O to complete on the buffer supplied. It returns immediately if > - * no I/O is pending or there is already a pending error on the buffer, in which > - * case nothing will ever complete. It returns the I/O error code, if any, or > - * 0 if there was no error. > + * Synchronous buffer IO submission path, read or write. > */ > int > -xfs_buf_iowait( > - xfs_buf_t *bp) > +xfs_buf_submit_wait( > + struct xfs_buf *bp) > { > - trace_xfs_buf_iowait(bp, _RET_IP_); > + int error; > + > + trace_xfs_buf_iorequest(bp, _RET_IP_); > > - if (!bp->b_error) > - wait_for_completion(&bp->b_iowait); > + ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); > + > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > + xfs_buf_ioerror(bp, -EIO); > + xfs_buf_stale(bp); > + bp->b_flags &= ~XBF_DONE; > + return -EIO; > + } > > + if (bp->b_flags & XBF_WRITE) > + xfs_buf_wait_unpin(bp); > + > + /* clear the internal error state to avoid spurious errors */ > + bp->b_io_error = 0; > + > + /* > + * For synchronous IO, the IO does not inherit the submitters reference > + * count, nor the buffer lock. Hence we cannot release the reference we > + * are about to take until we've waited for all IO completion to occur, > + * including any xfs_buf_ioend_async() work that may be pending. > + */ > + xfs_buf_hold(bp); > + > + /* > + * Set the count to 1 initially, this will stop an I/O completion > + * callout which happens before we have started all the I/O from calling > + * xfs_buf_ioend too early. > + */ > + atomic_set(&bp->b_io_remaining, 1); > + _xfs_buf_ioapply(bp); > + > + /* > + * make sure we run completion synchronously if it raced with us and is > + * already complete. > + */ > + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) > + xfs_buf_ioend(bp); > + > + /* wait for completion before gathering the error from the buffer */ > + trace_xfs_buf_iowait(bp, _RET_IP_); > + wait_for_completion(&bp->b_iowait); > trace_xfs_buf_iowait_done(bp, _RET_IP_); > - return bp->b_error; > + error = bp->b_error; > + > + /* > + * all done now, we can release the hold that keeps the buffer > + * referenced for the entire IO. > + */ > + xfs_buf_rele(bp); > + return error; > } > > xfs_caddr_t > @@ -1769,29 +1794,19 @@ __xfs_buf_delwri_submit( > blk_start_plug(&plug); > list_for_each_entry_safe(bp, n, io_list, b_list) { > bp->b_flags &= ~(_XBF_DELWRI_Q | XBF_ASYNC | XBF_WRITE_FAIL); > - bp->b_flags |= XBF_WRITE; > + bp->b_flags |= XBF_WRITE | XBF_ASYNC; > > - if (!wait) { > - bp->b_flags |= XBF_ASYNC; > + /* > + * we do all Io submission async. This means if we need to wait > + * for IO completion we need to take an extra reference so the > + * buffer is still valid on the other side. > + */ > + if (!wait) > list_del_init(&bp->b_list); > - } > - > - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > - trace_xfs_bdstrat_shut(bp, _RET_IP_); > - > - xfs_buf_ioerror(bp, -EIO); > - xfs_buf_stale(bp); > + else > + xfs_buf_hold(bp); > > - /* > - * if sync IO, xfs_buf_ioend is going to remove a > - * ref here. We need to add that so we can collect > - * all the buffer errors in the wait loop. > - */ > - if (wait) > - xfs_buf_hold(bp); > - xfs_buf_ioend(bp); > - } else > - xfs_buf_iorequest(bp); > + xfs_buf_submit(bp); > } > blk_finish_plug(&plug); > > @@ -1838,7 +1853,10 @@ xfs_buf_delwri_submit( > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > list_del_init(&bp->b_list); > - error2 = xfs_buf_iowait(bp); > + > + /* locking the buffer will wait for async IO completion. */ > + xfs_buf_lock(bp); > + error2 = bp->b_error; > xfs_buf_relse(bp); > if (!error) > error = error2; > diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > index d8f57f6..0acfc30 100644 > --- a/fs/xfs/xfs_buf.h > +++ b/fs/xfs/xfs_buf.h > @@ -290,8 +290,8 @@ extern int xfs_bwrite(struct xfs_buf *bp); > extern void xfs_buf_ioend(struct xfs_buf *bp); > extern void xfs_buf_ioerror(xfs_buf_t *, int); > extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); > -extern void xfs_buf_iorequest(xfs_buf_t *); > -extern int xfs_buf_iowait(xfs_buf_t *); > +extern void xfs_buf_submit(struct xfs_buf *bp); > +extern int xfs_buf_submit_wait(struct xfs_buf *bp); > extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, > xfs_buf_rw_t); > #define xfs_buf_zero(bp, off, len) \ > diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c > index 4fd41b5..cbea909 100644 > --- a/fs/xfs/xfs_buf_item.c > +++ b/fs/xfs/xfs_buf_item.c > @@ -1081,7 +1081,7 @@ xfs_buf_iodone_callbacks( > * a way to shut the filesystem down if the writes keep failing. > * > * In practice we'll shut the filesystem down soon as non-transient > - * erorrs tend to affect the whole device and a failing log write > + * errors tend to affect the whole device and a failing log write > * will make us give up. But we really ought to do better here. > */ > if (XFS_BUF_ISASYNC(bp)) { > @@ -1094,7 +1094,7 @@ xfs_buf_iodone_callbacks( > if (!(bp->b_flags & (XBF_STALE|XBF_WRITE_FAIL))) { > bp->b_flags |= XBF_WRITE | XBF_ASYNC | > XBF_DONE | XBF_WRITE_FAIL; > - xfs_buf_iorequest(bp); > + xfs_buf_submit(bp); > } else { > xfs_buf_relse(bp); > } > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index e4665db..c4d7f79 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -1699,7 +1699,7 @@ xlog_bdstrat( > return 0; > } > > - xfs_buf_iorequest(bp); > + xfs_buf_submit(bp); > return 0; > } > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 4ba19bf..1e14452 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -193,12 +193,8 @@ xlog_bread_noalign( > bp->b_io_length = nbblks; > bp->b_error = 0; > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) > - return -EIO; > - > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > - if (error) > + error = xfs_buf_submit_wait(bp); > + if (error && !XFS_FORCED_SHUTDOWN(log->l_mp)) > xfs_buf_ioerror_alert(bp, __func__); > return error; > } > @@ -4427,16 +4423,12 @@ xlog_do_recover( > XFS_BUF_UNASYNC(bp); > bp->b_ops = &xfs_sb_buf_ops; > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > - xfs_buf_relse(bp); > - return -EIO; > - } > - > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > - xfs_buf_ioerror_alert(bp, __func__); > - ASSERT(0); > + if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > + xfs_buf_ioerror_alert(bp, __func__); > + ASSERT(0); > + } > xfs_buf_relse(bp); > return error; > } > diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c > index 9c3e610..4bdf02c 100644 > --- a/fs/xfs/xfs_trans_buf.c > +++ b/fs/xfs/xfs_trans_buf.c > @@ -286,18 +286,13 @@ xfs_trans_read_buf_map( > bp->b_flags |= XBF_READ; > bp->b_ops = ops; > > - if (XFS_FORCED_SHUTDOWN(mp)) { > - trace_xfs_bdstrat_shut(bp, _RET_IP_); > - error = -EIO; > - goto out_stale; > - } > - > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > - xfs_buf_ioerror_alert(bp, __func__); > - goto out_do_shutdown; > - > + if (!XFS_FORCED_SHUTDOWN(mp)) { > + xfs_buf_ioerror_alert(bp, __func__); > + goto out_do_shutdown; > + } > + goto out_stale; > } > } > > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 15 11:13:32 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 3D8007F3F for ; Fri, 15 Aug 2014 11:13:32 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 19CF230404E for ; Fri, 15 Aug 2014 09:13:29 -0700 (PDT) X-ASG-Debug-ID: 1408119206-04cb6c550030040001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id t0sHg7Vz2nQwiy0f (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 09:13:27 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7FGDMQf027217 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 15 Aug 2014 12:13:24 -0400 Received: from laptop.bfoster (vpn-59-245.rdu2.redhat.com [10.10.59.245]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7FGDKjg025301 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 15 Aug 2014 12:13:22 -0400 Date: Fri, 15 Aug 2014 12:13:20 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140815161319.GF4096@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-9-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408119207 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 15, 2014 at 04:39:06PM +1000, Dave Chinner wrote: > From: Dave Chinner > > There is a lot of cookie-cutter code that looks like: > > if (shutdown) > handle buffer error > xfs_buf_iorequest(bp) > error = xfs_buf_iowait(bp) > if (error) > handle buffer error > > spread through XFS. There's significant complexity now in > xfs_buf_iorequest() to specifically handle this sort of synchronous > IO pattern, but there's all sorts of nasty surprises in different > error handling code dependent on who owns the buffer references and > the locks. > > Pull this pattern into a single helper, where we can hide all the > synchronous IO warts and hence make the error handling for all the > callers much saner. This removes the need for a special extra > reference to protect IO completion processing, as we can now hold a > single reference across dispatch and waiting, simplifying the sync > IO smeantics and error handling. > > In doing this, also rename xfs_buf_iorequest to xfs_buf_submit and > make it explicitly handle on asynchronous IO. This forces all users > to be switched specifically to one interface or the other and > removes any ambiguity between how the interfaces are to be used. It > also means that xfs_buf_iowait() goes away. > > For the special case of delwri buffer submission and waiting, we > don't need to issue IO synchronously at all. The second pass to cal > xfs_buf_iowait() can now just block on xfs_buf_lock() - the buffer > will be unlocked when the async IO is complete. This formalises a > sane the method of waiting for async IO - take an extra reference, > submit the IO, call xfs_buf_lock() when you want to wait for IO > completion. i.e.: > > bp = xfs_buf_find(); > xfs_buf_hold(bp); > bp->b_flags |= XBF_ASYNC; > xfs_buf_iosubmit(bp); > xfs_buf_lock(bp) > error = bp->b_error; > .... > xfs_buf_relse(bp); > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_bmap_util.c | 14 +--- > fs/xfs/xfs_buf.c | 186 ++++++++++++++++++++++++++--------------------- > fs/xfs/xfs_buf.h | 4 +- > fs/xfs/xfs_buf_item.c | 4 +- > fs/xfs/xfs_log.c | 2 +- > fs/xfs/xfs_log_recover.c | 22 ++---- > fs/xfs/xfs_trans_buf.c | 17 ++--- > 7 files changed, 122 insertions(+), 127 deletions(-) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 2f1e30d..c53cc03 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1157,12 +1157,7 @@ xfs_zero_remaining_bytes( > XFS_BUF_READ(bp); > XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); > > - if (XFS_FORCED_SHUTDOWN(mp)) { > - error = -EIO; > - break; > - } > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > xfs_buf_ioerror_alert(bp, > "xfs_zero_remaining_bytes(read)"); > @@ -1175,12 +1170,7 @@ xfs_zero_remaining_bytes( > XFS_BUF_UNREAD(bp); > XFS_BUF_WRITE(bp); > > - if (XFS_FORCED_SHUTDOWN(mp)) { > - error = -EIO; > - break; > - } > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > xfs_buf_ioerror_alert(bp, > "xfs_zero_remaining_bytes(write)"); > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > index 352e9219..a2599f9 100644 > --- a/fs/xfs/xfs_buf.c > +++ b/fs/xfs/xfs_buf.c > @@ -623,10 +623,11 @@ _xfs_buf_read( > bp->b_flags &= ~(XBF_WRITE | XBF_ASYNC | XBF_READ_AHEAD); > bp->b_flags |= flags & (XBF_READ | XBF_ASYNC | XBF_READ_AHEAD); > > - xfs_buf_iorequest(bp); > - if (flags & XBF_ASYNC) > + if (flags & XBF_ASYNC) { > + xfs_buf_submit(bp); > return 0; > - return xfs_buf_iowait(bp); > + } > + return xfs_buf_submit_wait(bp); > } > > xfs_buf_t * > @@ -708,12 +709,7 @@ xfs_buf_read_uncached( > bp->b_flags |= XBF_READ; > bp->b_ops = ops; > > - if (XFS_FORCED_SHUTDOWN(target->bt_mount)) { > - xfs_buf_relse(bp); > - return NULL; > - } > - xfs_buf_iorequest(bp); > - xfs_buf_iowait(bp); > + xfs_buf_submit_wait(bp); > return bp; > } > > @@ -1027,10 +1023,8 @@ xfs_buf_ioend( > (*(bp->b_iodone))(bp); > else if (bp->b_flags & XBF_ASYNC) > xfs_buf_relse(bp); > - else { > + else > complete(&bp->b_iowait); > - xfs_buf_rele(bp); > - } > } > > static void > @@ -1083,21 +1077,7 @@ xfs_bwrite( > bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | > XBF_WRITE_FAIL | XBF_DONE); > > - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > - trace_xfs_bdstrat_shut(bp, _RET_IP_); > - > - xfs_buf_ioerror(bp, -EIO); > - xfs_buf_stale(bp); > - > - /* sync IO, xfs_buf_ioend is going to remove a ref here */ > - xfs_buf_hold(bp); > - xfs_buf_ioend(bp); > - return -EIO; > - } > - > - xfs_buf_iorequest(bp); > - > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > xfs_force_shutdown(bp->b_target->bt_mount, > SHUTDOWN_META_IO_ERROR); > @@ -1206,7 +1186,7 @@ next_chunk: > } else { > /* > * This is guaranteed not to be the last io reference count > - * because the caller (xfs_buf_iorequest) holds a count itself. > + * because the caller (xfs_buf_submit) holds a count itself. > */ > atomic_dec(&bp->b_io_remaining); > xfs_buf_ioerror(bp, -EIO); > @@ -1296,13 +1276,29 @@ _xfs_buf_ioapply( > blk_finish_plug(&plug); > } > > +/* > + * Asynchronous IO submission path. This transfers the buffer lock ownership and > + * the current reference to the IO. It is not safe to reference the buffer after > + * a call to this function unless the caller holds an additional reference > + * itself. > + */ > void > -xfs_buf_iorequest( > - xfs_buf_t *bp) > +xfs_buf_submit( > + struct xfs_buf *bp) > { > trace_xfs_buf_iorequest(bp, _RET_IP_); > > ASSERT(!(bp->b_flags & _XBF_DELWRI_Q)); > + ASSERT(bp->b_flags & XBF_ASYNC); > + > + /* on shutdown we stale and complete the buffer immediately */ > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > + xfs_buf_ioerror(bp, -EIO); > + bp->b_flags &= ~XBF_DONE; > + xfs_buf_stale(bp); > + xfs_buf_ioend(bp); > + return; > + } > > if (bp->b_flags & XBF_WRITE) > xfs_buf_wait_unpin(bp); > @@ -1311,25 +1307,10 @@ xfs_buf_iorequest( > bp->b_io_error = 0; > I know this is from the previous patch, but I wonder if it's cleaner to reset b_io_error when the error is transferred to b_error. That seems slightly more future proof at least. > /* > - * Take references to the buffer. For XBF_ASYNC buffers, holding a > - * reference for as long as submission takes is all that is necessary > - * here. The IO inherits the lock and hold count from the submitter, > - * and these are release during IO completion processing. Taking a hold > - * over submission ensures that the buffer is not freed until we have > - * completed all processing, regardless of when IO errors occur or are > - * reported. > - * > - * However, for synchronous IO, the IO does not inherit the submitters > - * reference count, nor the buffer lock. Hence we need to take an extra > - * reference to the buffer for the for the IO context so that we can > - * guarantee the buffer is not freed until all IO completion processing > - * is done. Otherwise the caller can drop their reference while the IO > - * is still in progress and hence trigger a use-after-free situation. > + * Take an extra reference so that we don't have to guess when it's no > + * longer safe to reference the buffer that was passed to us. > */ Assuming my understanding is correct: /* * The caller's reference is released by buffer I/O completion. Technically * this should not occur until we release the last b_io_remaining reference. * Take a direct reference across the I/O submission anyways to be sure it's * safe to access the buffer until we release it. */ > xfs_buf_hold(bp); > - if (!(bp->b_flags & XBF_ASYNC)) > - xfs_buf_hold(bp); > - > > /* > * Set the count to 1 initially, this will stop an I/O completion > @@ -1340,14 +1321,13 @@ xfs_buf_iorequest( > _xfs_buf_ioapply(bp); > > /* > - * If _xfs_buf_ioapply failed or we are doing synchronous IO that > - * completes extremely quickly, we can get back here with only the IO > + * If _xfs_buf_ioapply failed, > + * we can get back here with only the IO > * reference we took above. _xfs_buf_ioend will drop it to zero, so > * we'd better run completion processing synchronously so that the we > - * don't return to the caller with completion still pending. In the > - * error case, this allows the caller to check b_error safely without > - * waiting, and in the synchronous IO case it avoids unnecessary context > - * switches an latency for high-peformance devices. > + * don't return to the caller with completion still pending. > + * this allows the caller to check b_error safely without > + * waiting > */ > if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > @@ -1357,25 +1337,70 @@ xfs_buf_iorequest( > } > > xfs_buf_rele(bp); > + /* Note: it is not safe to reference bp now we've dropped our ref */ > } > > /* > - * Waits for I/O to complete on the buffer supplied. It returns immediately if > - * no I/O is pending or there is already a pending error on the buffer, in which > - * case nothing will ever complete. It returns the I/O error code, if any, or > - * 0 if there was no error. > + * Synchronous buffer IO submission path, read or write. > */ > int > -xfs_buf_iowait( > - xfs_buf_t *bp) > +xfs_buf_submit_wait( > + struct xfs_buf *bp) > { > - trace_xfs_buf_iowait(bp, _RET_IP_); > + int error; > + > + trace_xfs_buf_iorequest(bp, _RET_IP_); > > - if (!bp->b_error) > - wait_for_completion(&bp->b_iowait); > + ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); > + > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > + xfs_buf_ioerror(bp, -EIO); > + xfs_buf_stale(bp); > + bp->b_flags &= ~XBF_DONE; > + return -EIO; > + } > > + if (bp->b_flags & XBF_WRITE) > + xfs_buf_wait_unpin(bp); > + > + /* clear the internal error state to avoid spurious errors */ > + bp->b_io_error = 0; > + > + /* > + * For synchronous IO, the IO does not inherit the submitters reference > + * count, nor the buffer lock. Hence we cannot release the reference we > + * are about to take until we've waited for all IO completion to occur, > + * including any xfs_buf_ioend_async() work that may be pending. > + */ > + xfs_buf_hold(bp); > + Harmless, but why is this necessary? The caller should have the reference, the I/O completion won't release it and we wait on b_iowait before we return. Isn't the caller's reference sufficient? > + /* > + * Set the count to 1 initially, this will stop an I/O completion > + * callout which happens before we have started all the I/O from calling > + * xfs_buf_ioend too early. > + */ > + atomic_set(&bp->b_io_remaining, 1); > + _xfs_buf_ioapply(bp); > + > + /* > + * make sure we run completion synchronously if it raced with us and is > + * already complete. > + */ > + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) > + xfs_buf_ioend(bp); > + > + /* wait for completion before gathering the error from the buffer */ > + trace_xfs_buf_iowait(bp, _RET_IP_); > + wait_for_completion(&bp->b_iowait); > trace_xfs_buf_iowait_done(bp, _RET_IP_); > - return bp->b_error; > + error = bp->b_error; > + > + /* > + * all done now, we can release the hold that keeps the buffer > + * referenced for the entire IO. > + */ > + xfs_buf_rele(bp); > + return error; > } > > xfs_caddr_t > @@ -1769,29 +1794,19 @@ __xfs_buf_delwri_submit( > blk_start_plug(&plug); > list_for_each_entry_safe(bp, n, io_list, b_list) { > bp->b_flags &= ~(_XBF_DELWRI_Q | XBF_ASYNC | XBF_WRITE_FAIL); > - bp->b_flags |= XBF_WRITE; > + bp->b_flags |= XBF_WRITE | XBF_ASYNC; > > - if (!wait) { > - bp->b_flags |= XBF_ASYNC; > + /* > + * we do all Io submission async. This means if we need to wait > + * for IO completion we need to take an extra reference so the > + * buffer is still valid on the other side. > + */ > + if (!wait) > list_del_init(&bp->b_list); > - } > - > - if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > - trace_xfs_bdstrat_shut(bp, _RET_IP_); > - > - xfs_buf_ioerror(bp, -EIO); > - xfs_buf_stale(bp); > + else > + xfs_buf_hold(bp); > > - /* > - * if sync IO, xfs_buf_ioend is going to remove a > - * ref here. We need to add that so we can collect > - * all the buffer errors in the wait loop. > - */ > - if (wait) > - xfs_buf_hold(bp); > - xfs_buf_ioend(bp); > - } else > - xfs_buf_iorequest(bp); > + xfs_buf_submit(bp); > } > blk_finish_plug(&plug); > > @@ -1838,7 +1853,10 @@ xfs_buf_delwri_submit( > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > list_del_init(&bp->b_list); > - error2 = xfs_buf_iowait(bp); > + > + /* locking the buffer will wait for async IO completion. */ > + xfs_buf_lock(bp); > + error2 = bp->b_error; Interesting delwri cleanup overall. The lock here works for synchronization (blocking), but it doesn't look safe for error processing. Once the buffer lock is dropped, who says b_error is from our write (and not a subsequent, for example) and thus this caller's responsibility to handle the error? I suspect this is a reason the lock is typically held across a sync I/O, so the error is valid after the I/O. Also, it looks like blocking on async I/O as such opens up the possibility of blocking indefinitely on failing writes if the right combination of delwri and b_iodone handler is used (see xfs_buf_iodone_callbacks()). I'm not sure if that's a real problem today, though. > xfs_buf_relse(bp); > if (!error) > error = error2; > diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h > index d8f57f6..0acfc30 100644 > --- a/fs/xfs/xfs_buf.h > +++ b/fs/xfs/xfs_buf.h > @@ -290,8 +290,8 @@ extern int xfs_bwrite(struct xfs_buf *bp); > extern void xfs_buf_ioend(struct xfs_buf *bp); > extern void xfs_buf_ioerror(xfs_buf_t *, int); > extern void xfs_buf_ioerror_alert(struct xfs_buf *, const char *func); > -extern void xfs_buf_iorequest(xfs_buf_t *); > -extern int xfs_buf_iowait(xfs_buf_t *); > +extern void xfs_buf_submit(struct xfs_buf *bp); > +extern int xfs_buf_submit_wait(struct xfs_buf *bp); > extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *, > xfs_buf_rw_t); > #define xfs_buf_zero(bp, off, len) \ > diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c > index 4fd41b5..cbea909 100644 > --- a/fs/xfs/xfs_buf_item.c > +++ b/fs/xfs/xfs_buf_item.c > @@ -1081,7 +1081,7 @@ xfs_buf_iodone_callbacks( > * a way to shut the filesystem down if the writes keep failing. > * > * In practice we'll shut the filesystem down soon as non-transient > - * erorrs tend to affect the whole device and a failing log write > + * errors tend to affect the whole device and a failing log write > * will make us give up. But we really ought to do better here. > */ > if (XFS_BUF_ISASYNC(bp)) { > @@ -1094,7 +1094,7 @@ xfs_buf_iodone_callbacks( > if (!(bp->b_flags & (XBF_STALE|XBF_WRITE_FAIL))) { > bp->b_flags |= XBF_WRITE | XBF_ASYNC | > XBF_DONE | XBF_WRITE_FAIL; > - xfs_buf_iorequest(bp); > + xfs_buf_submit(bp); > } else { > xfs_buf_relse(bp); > } > diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c > index e4665db..c4d7f79 100644 > --- a/fs/xfs/xfs_log.c > +++ b/fs/xfs/xfs_log.c > @@ -1699,7 +1699,7 @@ xlog_bdstrat( > return 0; > } > > - xfs_buf_iorequest(bp); > + xfs_buf_submit(bp); > return 0; > } > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 4ba19bf..1e14452 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -193,12 +193,8 @@ xlog_bread_noalign( > bp->b_io_length = nbblks; > bp->b_error = 0; > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) > - return -EIO; > - > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > - if (error) > + error = xfs_buf_submit_wait(bp); > + if (error && !XFS_FORCED_SHUTDOWN(log->l_mp)) > xfs_buf_ioerror_alert(bp, __func__); > return error; > } > @@ -4427,16 +4423,12 @@ xlog_do_recover( > XFS_BUF_UNASYNC(bp); > bp->b_ops = &xfs_sb_buf_ops; > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > - xfs_buf_relse(bp); > - return -EIO; > - } > - > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > - xfs_buf_ioerror_alert(bp, __func__); > - ASSERT(0); > + if (XFS_FORCED_SHUTDOWN(log->l_mp)) { Should this be !XFS_FORCED_SHUTDOWN()? Brian > + xfs_buf_ioerror_alert(bp, __func__); > + ASSERT(0); > + } > xfs_buf_relse(bp); > return error; > } > diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c > index 9c3e610..4bdf02c 100644 > --- a/fs/xfs/xfs_trans_buf.c > +++ b/fs/xfs/xfs_trans_buf.c > @@ -286,18 +286,13 @@ xfs_trans_read_buf_map( > bp->b_flags |= XBF_READ; > bp->b_ops = ops; > > - if (XFS_FORCED_SHUTDOWN(mp)) { > - trace_xfs_bdstrat_shut(bp, _RET_IP_); > - error = -EIO; > - goto out_stale; > - } > - > - xfs_buf_iorequest(bp); > - error = xfs_buf_iowait(bp); > + error = xfs_buf_submit_wait(bp); > if (error) { > - xfs_buf_ioerror_alert(bp, __func__); > - goto out_do_shutdown; > - > + if (!XFS_FORCED_SHUTDOWN(mp)) { > + xfs_buf_ioerror_alert(bp, __func__); > + goto out_do_shutdown; > + } > + goto out_stale; > } > } > > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From david@fromorbit.com Fri Aug 15 18:18:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9C6617F3F for ; Fri, 15 Aug 2014 18:18:00 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6A6EA30408F for ; Fri, 15 Aug 2014 16:17:57 -0700 (PDT) X-ASG-Debug-ID: 1408144670-04bdf0185546f70001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id QLc6gZnfrDG4qQDZ for ; Fri, 15 Aug 2014 16:17:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHABuU7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgQ8Xd4QDAQEEAScTHCMFCwgDDgoJJQ8FJQMhE4g6B8QDFxiFZIQDhU0HhEwFjw6NL5UAg24rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 08:47:49 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIQka-0003pj-7m; Sat, 16 Aug 2014 09:17:36 +1000 Date: Sat, 16 Aug 2014 09:17:36 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference Message-ID: <20140815231736.GT26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-2-git-send-email-david@fromorbit.com> <20140815131804.GA4096@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815131804.GA4096@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408144670 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8489 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 09:18:04AM -0400, Brian Foster wrote: > On Fri, Aug 15, 2014 at 04:38:59PM +1000, Dave Chinner wrote: .... > > if (bp->b_flags & XBF_WRITE) > > xfs_buf_wait_unpin(bp); > > + > > + /* > > + * Take references to the buffer. For XBF_ASYNC buffers, holding a > > + * reference for as long as submission takes is all that is necessary > > + * here. The IO inherits the lock and hold count from the submitter, > > + * and these are release during IO completion processing. Taking a hold > > + * over submission ensures that the buffer is not freed until we have > > + * completed all processing, regardless of when IO errors occur or are > > + * reported. > > + * > > + * However, for synchronous IO, the IO does not inherit the submitters > > + * reference count, nor the buffer lock. Hence we need to take an extra > > + * reference to the buffer for the for the IO context so that we can > > + * guarantee the buffer is not freed until all IO completion processing > > + * is done. Otherwise the caller can drop their reference while the IO > > + * is still in progress and hence trigger a use-after-free situation. > > + */ > > xfs_buf_hold(bp); > > + if (!(bp->b_flags & XBF_ASYNC)) > > + xfs_buf_hold(bp); > > + > > > > /* > > - * Set the count to 1 initially, this will stop an I/O > > - * completion callout which happens before we have started > > - * all the I/O from calling xfs_buf_ioend too early. > > + * Set the count to 1 initially, this will stop an I/O completion > > + * callout which happens before we have started all the I/O from calling > > + * xfs_buf_ioend too early. > > */ > > atomic_set(&bp->b_io_remaining, 1); > > _xfs_buf_ioapply(bp); > > + > > /* > > - * If _xfs_buf_ioapply failed, we'll get back here with > > - * only the reference we took above. _xfs_buf_ioend will > > - * drop it to zero, so we'd better not queue it for later, > > - * or we'll free it before it's done. > > + * If _xfs_buf_ioapply failed or we are doing synchronous IO that > > + * completes extremely quickly, we can get back here with only the IO > > + * reference we took above. _xfs_buf_ioend will drop it to zero, so > > + * we'd better run completion processing synchronously so that the we > > + * don't return to the caller with completion still pending. In the > > + * error case, this allows the caller to check b_error safely without > > + * waiting, and in the synchronous IO case it avoids unnecessary context > > + * switches an latency for high-peformance devices. > > */ > > AFAICT there is no real wait if the buf has completed at this point. The > wait just decrements the completion counter. If the IO has completed, then we run the completion code. > So what's the benefit of > "not waiting?" Where is the potential context switch? async work for completion processing on synchrnous IO means we queue the work, then sleep in xfs_buf_iowait(). Two context switches, plus a work queue execution > Are you referring > to the case where error is set but I/O is not complete? Are you saying > the advantage to the caller is it doesn't have to care about the state > of further I/O once it has been determined at least one error has > occurred? (If so, who cares about latency given that some operation that > depends on this I/O is already doomed to fail?). No, you're reading *way* too much into this. For sync IO, it's always best to process completion inline. For async, it doesn't matter, but if there's a submission error is *more effecient* to process it in the current context. > The code looks fine, but I'm trying to understand the reasoning better > (and I suspect we can clarify the comment). > > > - _xfs_buf_ioend(bp, bp->b_error ? 0 : 1); > > + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > + _xfs_buf_ioend(bp, 0); > > + else > > + _xfs_buf_ioend(bp, 1); > > Not related to this patch, but it seems like the problem this code tries > to address is still possible. The race condition is still possible - it just won't result in a use-after-free. The race condition is not fixed until patch 8, but as a backportable fix, this patch is much, much simpler. > Perhaps this papers over a particular > instance. Consider the case where an I/O fails immediately after this > call completes, but not before. We have an extra reference now for > completion, but we can still return to the caller with completion > pending. I suppose its fine if we consider the "problem" to be that the > reference goes away underneath the completion, as opposed to the caller > caring about the status of completion. Precisely. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:21:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 618837F50 for ; Fri, 15 Aug 2014 18:21:52 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D792EAC003 for ; Fri, 15 Aug 2014 16:21:51 -0700 (PDT) X-ASG-Debug-ID: 1408144909-04cbb05485436b0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 3murMwwpWhBlfYLu for ; Fri, 15 Aug 2014 16:21:49 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoUPADeV7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehD6BPQGBEBd3hAMBAQQBJxMcIwULCAMOBwMJJQ8FJQMhE4g6B8QKFxiFZIlQB4RMBYYRliyMB4h5ghaBWCsvgQgkgSMBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 08:51:48 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIQoR-0003q2-Ti; Sat, 16 Aug 2014 09:21:35 +1000 Date: Sat, 16 Aug 2014 09:21:35 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-ID: <20140815232135.GU26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-3-git-send-email-david@fromorbit.com> <20140815131820.GB4096@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815131820.GB4096@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408144909 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8490 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 09:18:21AM -0400, Brian Foster wrote: > On Fri, Aug 15, 2014 at 04:39:00PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > We do some work in xfs_buf_ioend, and some work in > > xfs_buf_iodone_work, but much of that functionality is the same. > > This work can all be done in a single function, leaving > > xfs_buf_iodone just a wrapper to determine if we should execute it > > by workqueue or directly. hence rename xfs_buf_iodone_work to > > xfs_buf_ioend(), and add a new xfs_buf_ioend_async() for places that > > need async processing. > > > > Signed-off-by: Dave Chinner > > --- > > fs/xfs/xfs_buf.c | 79 +++++++++++++++++++++--------------------------- > > fs/xfs/xfs_buf.h | 2 +- > > fs/xfs/xfs_buf_item.c | 4 +-- > > fs/xfs/xfs_inode.c | 2 +- > > fs/xfs/xfs_log.c | 2 +- > > fs/xfs/xfs_log_recover.c | 2 +- > > 6 files changed, 40 insertions(+), 51 deletions(-) > > > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > > index 5d86bbd..1b7f0bc 100644 > > --- a/fs/xfs/xfs_buf.c > > +++ b/fs/xfs/xfs_buf.c > > @@ -999,54 +999,49 @@ xfs_buf_wait_unpin( > > */ > > > > STATIC void > > -xfs_buf_iodone_work( > > - struct work_struct *work) > > +xfs_buf_ioend( > > + struct xfs_buf *bp) > > Compile failure here due to STATIC. > > > { > > - struct xfs_buf *bp = > > - container_of(work, xfs_buf_t, b_iodone_work); > > - bool read = !!(bp->b_flags & XBF_READ); > > + bool read = !!(bp->b_flags & XBF_READ); > > + > > + trace_xfs_buf_iodone(bp, _RET_IP_); > > > > bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); > > > > - /* only validate buffers that were read without errors */ > > - if (read && bp->b_ops && !bp->b_error && (bp->b_flags & XBF_DONE)) > > - bp->b_ops->verify_read(bp); > > + if (!bp->b_error) { > > + bp->b_flags |= XBF_DONE; > > + > > + /* only validate buffers that were read without errors */ > > + if (read && bp->b_ops) > > + bp->b_ops->verify_read(bp); > > + } > > Probably not a cause of errors, but this code is now executed twice for > I/O with b_iodone callbacks. reads don't have b_iodone callbacks. > Once for the initial call from bio_end_io, > again from the callback via the b_iodone handler. The flags bits are > probably fine, but we don't want to be running the verifiers multiple > times unnecessarily. Which we don't ;) > > @@ -1425,10 +1412,12 @@ xfs_buf_iorequest( > > * waiting, and in the synchronous IO case it avoids unnecessary context > > * switches an latency for high-peformance devices. > > */ > > - if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > - _xfs_buf_ioend(bp, 0); > > - else > > - _xfs_buf_ioend(bp, 1); > > + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > > + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > + xfs_buf_ioend(bp); > > + else > > + xfs_buf_ioend_async(bp); > > + } > > This looks cleaner, but the comment is out of whack at this point. The code is functionally identical, so the comment didn't get changed. As it is, the behaviour that exists in this patch goes away in later patches, so it's mostly irrelevant that a comment is absoultely correct in an intermediate point within the patch set. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:26:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D98BF7F53 for ; Fri, 15 Aug 2014 18:26:15 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6AAE8AC001 for ; Fri, 15 Aug 2014 16:26:15 -0700 (PDT) X-ASG-Debug-ID: 1408145172-04cbb0548643890001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id mRbCgBgtOYaPYg3u for ; Fri, 15 Aug 2014 16:26:13 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHAG2W7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgRAXd4QDAQEFJxMcIxAIAw4HAwklDwUlAyETiEHECxcYhWSJUAeETAWcPYwHiHmDbisvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 08:56:11 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIQsh-0003qe-GU; Sat, 16 Aug 2014 09:25:59 +1000 Date: Sat, 16 Aug 2014 09:25:59 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling Message-ID: <20140815232559.GV26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-4-git-send-email-david@fromorbit.com> <20140815131836.GC4096@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815131836.GC4096@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408145172 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8490 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 09:18:37AM -0400, Brian Foster wrote: > On Fri, Aug 15, 2014 at 04:39:01PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > Currently the report of a bio error from completion > > immediately marks the buffer with an error. The issue is that this > > is racy w.r.t. synchronous IO - the submitter can see b_error being > > set before the IO is complete, and hence we cannot differentiate > > between submission failures and completion failures. > > > > Add an internal b_io_error field protected by the b_lock to catch IO > > completion errors, and only propagate that to the buffer during > > final IO completion handling. Hence we can tell in xfs_buf_iorequest > > if we've had a submission failure bey checking bp->b_error before > > dropping our b_io_remaining reference - that reference will prevent > > b_io_error values from being propagated to b_error in the event that > > completion races with submission. > > > > In doing so, allow xfs_buf_iorequest to return an error. That way, > > the caller can check for submission errors safely if required, and > > easily distinguish them from completion errors that come from > > xfs_buf_iowait(). > > > > I don't see any changes to xfs_buf_iorequest() at all in this one. That > aside, it looks fine. It's not how I was thinking about it, but a clear > separation of submission error regardless. Apart from adding a zeroing of b_io_error, no, it doesn't change. What I meant to describe was the new capability this adds. I'll rewrite the paragraph to say: In doing so, xfs_buf_iorequest now has the capability to distinguish between submission and completion errors, and hence if we need to we can return submission errors directly and allow callers to gather completion errors from xfs_buf_iowait(). Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:28:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AFCE129DF9 for ; Fri, 15 Aug 2014 18:28:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9D2968F8078 for ; Fri, 15 Aug 2014 16:28:08 -0700 (PDT) X-ASG-Debug-ID: 1408145285-04cb6c54fe3fb20001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id W1CCTfJm4SohxvC2 for ; Fri, 15 Aug 2014 16:28:06 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHAG2W7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgRAXd4QDAQEEAScTHCMFCwgDDgoJJQ8FJQMhE4g6B8QLFxiFZIlQB4RMBZw9jAeIeYNuKy+BBiSBJQEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 08:58:04 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIQuL-0003rJ-B3; Sat, 16 Aug 2014 09:27:41 +1000 Date: Sat, 16 Aug 2014 09:27:41 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/9] xfs: xfs_bioerror can die. Message-ID: <20140815232741.GW26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 5/9] xfs: xfs_bioerror can die. References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-6-git-send-email-david@fromorbit.com> <20140815143540.GD4096@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815143540.GD4096@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408145285 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8490 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 10:35:41AM -0400, Brian Foster wrote: > On Fri, Aug 15, 2014 at 04:39:03PM +1000, Dave Chinner wrote: > > @@ -1149,19 +1119,19 @@ xfs_bwrite( > > ASSERT(xfs_buf_islocked(bp)); > > > > bp->b_flags |= XBF_WRITE; > > - bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | XBF_WRITE_FAIL); > > + bp->b_flags &= ~(XBF_ASYNC | XBF_READ | _XBF_DELWRI_Q | > > + XBF_WRITE_FAIL | XBF_DONE); > > > > if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > > trace_xfs_bdstrat_shut(bp, _RET_IP_); > > > > - /* > > - * Metadata write that didn't get logged but written anyway. > > - * These aren't associated with a transaction, and can be > > - * ignored. > > - */ > > - if (!bp->b_iodone) > > - return xfs_bioerror_relse(bp); > > - return xfs_bioerror(bp); > > + xfs_buf_ioerror(bp, -EIO); > > + xfs_buf_stale(bp); > > + > > + /* sync IO, xfs_buf_ioend is going to remove a ref here */ > > + xfs_buf_hold(bp); > > Looks correct, but that's kind of ugly. The reference serves no purpose > except to appease the error sequence. It gives the impression that the > reference management should be handled at a higher level (and with truly > synchronous I/O primitives/mechanisms, it is ;). Oh, yeah, it's nasty ugly, but that goes away with patch 8. This is just a temporary state that then gets factored neatly when the new interfaces are introduced. > At the very least, can we reorganize the ioend side of things to handle > this? We already have the duplicate execution issue previously mentioned > that has to get resolved. Some duplicate code is fine if it improves > clarity, imo. patch 8 does that - this is just preparing the code for being easy to factor. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:37:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AD1A029DF9 for ; Fri, 15 Aug 2014 18:37:59 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 894B18F8084 for ; Fri, 15 Aug 2014 16:37:59 -0700 (PDT) X-ASG-Debug-ID: 1408145877-04cbb0548843d90001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id S1RYVlhA3dtXNx7O for ; Fri, 15 Aug 2014 16:37:57 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHAPOY7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgRAXd4QDAQEEAScTHCMFCwgDDgoJJQ8FJQMhE4g6B8N5FxiFZIQDhU0HhEwFnD2MB4h5g24rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 09:07:56 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIR43-0003sT-EM; Sat, 16 Aug 2014 09:37:43 +1000 Date: Sat, 16 Aug 2014 09:37:43 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140815233743.GX26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> <20140815131020.GB27856@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815131020.GB27856@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408145877 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8490 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 06:10:20AM -0700, Christoph Hellwig wrote: > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > > index 2f1e30d..c53cc03 100644 > > --- a/fs/xfs/xfs_bmap_util.c > > +++ b/fs/xfs/xfs_bmap_util.c > > @@ -1157,12 +1157,7 @@ xfs_zero_remaining_bytes( > > xfs_zero_remaining_bytes really should be switched to > xfs_buf_read_uncached + xfs_bwrite instead of all this mess just to > micro-optimize a few memory allocation away that don't even happen for > the common case of blocksize == PAGE_SIZE. I'm not even sure we > should be using the buffer cache at all for something inside a regular > file, but that's a discussion for another time. xfs_zero_remaining_bytes is uses an uncached buffer, so we're not using the buffer cache at all for the blocks being zeroed. That is why it does the flag twiddling dance it does. However, consolidation all the different block zeroing functions we have is an exercise for a different day.... > > > void > > +xfs_buf_submit( > > + struct xfs_buf *bp) > > { > > trace_xfs_buf_iorequest(bp, _RET_IP_); > > I suspect these two should have properly name and separate trace > points now? Yes. Just haven't got to it. > It also seems like a lot of the guts of the two functions are > still the same, so factoring that into a __xfs_buf_submit helper > would be useful. Possibly, if we can ensure that the helper it never called directly by any other code. Then we end up back in the mess we are currently in. > > + * If _xfs_buf_ioapply failed, > > + * we can get back here with only the IO > > * reference we took above. _xfs_buf_ioend will drop it to zero, so > > * we'd better run completion processing synchronously so that the we > > + * don't return to the caller with completion still pending. > > + * this allows the caller to check b_error safely without > > + * waiting > > */ > > if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > > if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > I don't think the !ASYNC case can happen here, can it? Right, I forget to clean that part up when I was splitting up the functions. > > > + if (!wait) > > list_del_init(&bp->b_list); > > + else > > + xfs_buf_hold(bp); > > Maybe switch this around to avoid the negated condition in the if else? > > Also might this be worth a change of it's own? Yeah, that's probably a good idea - the algorithm change is not directly related to the interface change. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:40:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 38D8029DF9 for ; Fri, 15 Aug 2014 18:40:10 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 239DE8F804C for ; Fri, 15 Aug 2014 16:40:10 -0700 (PDT) X-ASG-Debug-ID: 1408146007-04cbb0548543e80001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id 14e81ipnRQCiFFXL for ; Fri, 15 Aug 2014 16:40:08 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHACCa7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgRAXd4QDAQEFJxMcIxAIAw4HAwklDwUlAyETiEHDehcYhWSJUAeETAWcPYwHiHmDbisvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 09:09:48 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIR5r-0003sk-3s; Sat, 16 Aug 2014 09:39:35 +1000 Date: Sat, 16 Aug 2014 09:39:35 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140815233935.GY26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> <20140815143558.GE4096@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815143558.GE4096@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408146007 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8490 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 10:35:58AM -0400, Brian Foster wrote: > On Fri, Aug 15, 2014 at 04:39:06PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > There is a lot of cookie-cutter code that looks like: > > > > if (shutdown) > > handle buffer error > > xfs_buf_iorequest(bp) > > error = xfs_buf_iowait(bp) > > if (error) > > handle buffer error > > > > spread through XFS. There's significant complexity now in > > xfs_buf_iorequest() to specifically handle this sort of synchronous > > IO pattern, but there's all sorts of nasty surprises in different > > error handling code dependent on who owns the buffer references and > > the locks. > > > > Pull this pattern into a single helper, where we can hide all the > > synchronous IO warts and hence make the error handling for all the > > callers much saner. This removes the need for a special extra > > reference to protect IO completion processing, as we can now hold a > > single reference across dispatch and waiting, simplifying the sync > > IO smeantics and error handling. > > > > In doing this, also rename xfs_buf_iorequest to xfs_buf_submit and > > make it explicitly handle on asynchronous IO. This forces all users > > to be switched specifically to one interface or the other and > > removes any ambiguity between how the interfaces are to be used. It > > also means that xfs_buf_iowait() goes away. > > > > For the special case of delwri buffer submission and waiting, we > > don't need to issue IO synchronously at all. The second pass to cal > > xfs_buf_iowait() can now just block on xfs_buf_lock() - the buffer > > will be unlocked when the async IO is complete. This formalises a > > sane the method of waiting for async IO - take an extra reference, > > submit the IO, call xfs_buf_lock() when you want to wait for IO > > completion. i.e.: > > > > bp = xfs_buf_find(); > > xfs_buf_hold(bp); > > bp->b_flags |= XBF_ASYNC; > > xfs_buf_iosubmit(bp); > > xfs_buf_lock(bp) > > error = bp->b_error; > > .... > > xfs_buf_relse(bp); > > > > Signed-off-by: Dave Chinner > > --- > > On a quick look at submit_wait this looks pretty good. It actually > implements the general model I've been looking for for sync I/O. E.g., > send the I/O, wait on synchronization, then check for errors. In other > words, a pure synchronous mechanism. The refactoring and new helpers and > whatnot are additional bonus and abstract it nicely. > > I still have to take a closer look to review the actual code, but since > we go and remove the additional sync I/O reference counting business, > why do we even add that stuff early on? Can't we get from where the > current code is to here in a more direct manner? Simply because we need a fix that we can backport, and that fix is a simple addition that does not significantly affect the rest of the patchset... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:58:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6D6DF29DF9 for ; Fri, 15 Aug 2014 18:58:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 587133040A4 for ; Fri, 15 Aug 2014 16:58:21 -0700 (PDT) X-ASG-Debug-ID: 1408147097-04cb6c54ff40620001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id CAZyZPL3oz9ZgYHt for ; Fri, 15 Aug 2014 16:58:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHAKSd7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgRAXd4QDAQEEAScTHCMFCwgDDgoJJQ8FJQMhCgmIOgfDfhcYhWSIeAtNB4RMBZw9jAeIeYNuKy+BBgEfgSkBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 09:28:17 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIRNk-0003uO-8U; Sat, 16 Aug 2014 09:58:04 +1000 Date: Sat, 16 Aug 2014 09:58:04 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140815235804.GZ26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> <20140815161319.GF4096@laptop.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815161319.GF4096@laptop.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408147097 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8491 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 12:13:20PM -0400, Brian Foster wrote: > On Fri, Aug 15, 2014 at 04:39:06PM +1000, Dave Chinner wrote: > > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > > + xfs_buf_ioerror(bp, -EIO); > > + bp->b_flags &= ~XBF_DONE; > > + xfs_buf_stale(bp); > > + xfs_buf_ioend(bp); > > + return; > > + } > > > > if (bp->b_flags & XBF_WRITE) > > xfs_buf_wait_unpin(bp); > > @@ -1311,25 +1307,10 @@ xfs_buf_iorequest( > > bp->b_io_error = 0; > > > > I know this is from the previous patch, but I wonder if it's cleaner to > reset b_io_error when the error is transferred to b_error. That seems > slightly more future proof at least. I much prefer zeroing just before the variable is needed to be zero, simply to indicate the context in which we care that the value is correct. Outside of actively submitted IO, the value of b_io_error is irrelevant, so it's value really doesn't matter. The other advantage of leaving it untocuhed is for debug purposes - the caller might clear b_error, but we still know what the state of the last IO that was completed in the buffer was... > > > /* > > - * Take references to the buffer. For XBF_ASYNC buffers, holding a > > - * reference for as long as submission takes is all that is necessary > > - * here. The IO inherits the lock and hold count from the submitter, > > - * and these are release during IO completion processing. Taking a hold > > - * over submission ensures that the buffer is not freed until we have > > - * completed all processing, regardless of when IO errors occur or are > > - * reported. > > - * > > - * However, for synchronous IO, the IO does not inherit the submitters > > - * reference count, nor the buffer lock. Hence we need to take an extra > > - * reference to the buffer for the for the IO context so that we can > > - * guarantee the buffer is not freed until all IO completion processing > > - * is done. Otherwise the caller can drop their reference while the IO > > - * is still in progress and hence trigger a use-after-free situation. > > + * Take an extra reference so that we don't have to guess when it's no > > + * longer safe to reference the buffer that was passed to us. > > */ > > Assuming my understanding is correct: > > /* > * The caller's reference is released by buffer I/O completion. Technically > * this should not occur until we release the last b_io_remaining reference. That's not quite right. The caller's reference is released some time *after* b_io_remaining goes to zero. That's the reason we need to hold a reference - after we drop our b_io_remaining count, we have to have some other method of ensuring the buffer doesn't go away until we have finished with the buffer. I'll rewrite the comment. > > +xfs_buf_submit_wait( > > + struct xfs_buf *bp) > > { > > - trace_xfs_buf_iowait(bp, _RET_IP_); > > + int error; > > + > > + trace_xfs_buf_iorequest(bp, _RET_IP_); > > > > - if (!bp->b_error) > > - wait_for_completion(&bp->b_iowait); > > + ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); > > + > > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > > + xfs_buf_ioerror(bp, -EIO); > > + xfs_buf_stale(bp); > > + bp->b_flags &= ~XBF_DONE; > > + return -EIO; > > + } > > > > + if (bp->b_flags & XBF_WRITE) > > + xfs_buf_wait_unpin(bp); > > + > > + /* clear the internal error state to avoid spurious errors */ > > + bp->b_io_error = 0; > > + > > + /* > > + * For synchronous IO, the IO does not inherit the submitters reference > > + * count, nor the buffer lock. Hence we cannot release the reference we > > + * are about to take until we've waited for all IO completion to occur, > > + * including any xfs_buf_ioend_async() work that may be pending. > > + */ > > + xfs_buf_hold(bp); > > + > > Harmless, but why is this necessary? The caller should have the > reference, the I/O completion won't release it and we wait on b_iowait > before we return. Isn't the caller's reference sufficient? Consistency - I'd prefer that all IO has the same reference counting behaviour. i.e. that the IO holds it's own reference to ensure, regardless of anything else that happens, that the buffer has a valid reference count the entire time the IO subsystem processing the buffer. > > @@ -1838,7 +1853,10 @@ xfs_buf_delwri_submit( > > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > > > list_del_init(&bp->b_list); > > - error2 = xfs_buf_iowait(bp); > > + > > + /* locking the buffer will wait for async IO completion. */ > > + xfs_buf_lock(bp); > > + error2 = bp->b_error; > > Interesting delwri cleanup overall. The lock here works for > synchronization (blocking), but it doesn't look safe for error > processing. Once the buffer lock is dropped, who says b_error is from > our write (and not a subsequent, for example) and thus this caller's > responsibility to handle the error? I suspect this is a reason the lock > is typically held across a sync I/O, so the error is valid after the > I/O. It's fine because there is only a limited set of blocking callers, all of which are special cases. The only callers that use this blocking xfs_buf_delwri_submit() interface are: 1. log recovery: running single threaded, so isn't going to be racing with anything else that can modify the error 2. quotacheck: also running single threaded 3. quota shrinker, which has nowhere to report an error to, so the error status simply doesn't matter. > Also, it looks like blocking on async I/O as such opens up the > possibility of blocking indefinitely on failing writes if the right > combination of delwri and b_iodone handler is used (see > xfs_buf_iodone_callbacks()). I'm not sure if that's a real problem > today, though. I don't think it is - we don't permanently rewrite metadata writes from IO completion anymore. We retry once, but then require higher layers to restart the IO again (e.g. the xfsaild). Hence we can't get stuck forever on async write errors. > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > > index 4ba19bf..1e14452 100644 > > --- a/fs/xfs/xfs_log_recover.c > > +++ b/fs/xfs/xfs_log_recover.c > > @@ -193,12 +193,8 @@ xlog_bread_noalign( > > bp->b_io_length = nbblks; > > bp->b_error = 0; > > > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) > > - return -EIO; > > - > > - xfs_buf_iorequest(bp); > > - error = xfs_buf_iowait(bp); > > - if (error) > > + error = xfs_buf_submit_wait(bp); > > + if (error && !XFS_FORCED_SHUTDOWN(log->l_mp)) > > xfs_buf_ioerror_alert(bp, __func__); > > return error; > > } > > @@ -4427,16 +4423,12 @@ xlog_do_recover( > > XFS_BUF_UNASYNC(bp); > > bp->b_ops = &xfs_sb_buf_ops; > > > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > > - xfs_buf_relse(bp); > > - return -EIO; > > - } > > - > > - xfs_buf_iorequest(bp); > > - error = xfs_buf_iowait(bp); > > + error = xfs_buf_submit_wait(bp); > > if (error) { > > - xfs_buf_ioerror_alert(bp, __func__); > > - ASSERT(0); > > + if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > > Should this be !XFS_FORCED_SHUTDOWN()? Right, good catch, especially after reading all that code ;) Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 15 18:58:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6A66829DF9 for ; Fri, 15 Aug 2014 18:58:58 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 56BE38F8078 for ; Fri, 15 Aug 2014 16:58:58 -0700 (PDT) X-ASG-Debug-ID: 1408147136-04cbb0548744500001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id VVm4MY4oBYhFIZ9q for ; Fri, 15 Aug 2014 16:58:56 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhcHAKSd7lN5LDJ8/2dsb2JhbABZgw2BKq8wAQEBAQEBBqAehXsBgRAXd4QDAQEFJxMcIxAIAw4HAwklDwUlAyETiEHDfhcYhWSJUAeDL4EdAQScPYwHiHmDbisvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 16 Aug 2014 09:28:55 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XIRON-0003up-4k; Sat, 16 Aug 2014 09:58:43 +1000 Date: Sat, 16 Aug 2014 09:58:43 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly Message-ID: <20140815235843.GA26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-10-git-send-email-david@fromorbit.com> <20140815125608.GA27856@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815125608.GA27856@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408147136 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8491 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 05:56:08AM -0700, Christoph Hellwig wrote: > On Fri, Aug 15, 2014 at 04:39:07PM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > xfs_buf_read_uncached() has two failure modes. If can either return > > NULL or bp->b_error != 0 depending on the type of failure, and not > > all callers check for both. Fix it up. > > I'd rather get rid of these annoying calling conventions. Make it > return and errno, and the bp in a pointer argument, with the bp > never non-NULL in case of error. Ok. I considered that, then just did the simple thing. Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+9d7b80a238e785b35dc7+4010+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 15 23:55:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EB2617F3F for ; Fri, 15 Aug 2014 23:55:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id D45A28F8039 for ; Fri, 15 Aug 2014 21:55:33 -0700 (PDT) X-ASG-Debug-ID: 1408164931-04cbb054864a740001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id kNa2gUWul0xlYUHI (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 15 Aug 2014 21:55:32 -0700 (PDT) X-Barracuda-Envelope-From: BATV+9d7b80a238e785b35dc7+4010+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XIW1b-0004Sw-EH; Sat, 16 Aug 2014 04:55:31 +0000 Date: Fri, 15 Aug 2014 21:55:31 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140816045531.GA7876@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> <20140815131020.GB27856@infradead.org> <20140815233743.GX26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815233743.GX26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1408164932 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8498 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Sat, Aug 16, 2014 at 09:37:43AM +1000, Dave Chinner wrote: > xfs_zero_remaining_bytes is uses an uncached buffer, so we're not > using the buffer cache at all for the blocks being zeroed. That is > why it does the flag twiddling dance it does. However, consolidation > all the different block zeroing functions we have is an exercise for > a different day.... Well, we're using buffers. Anyway, below is what I think it should look like when using buffers. Although I wonder how either the old or new variant pass the verifier check in _xfs_buf_ioapply for v5 filesystems given that we don't pass any ops in. diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 2f1e30d..c495dce 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1122,14 +1122,6 @@ xfs_zero_remaining_bytes( if (endoff > XFS_ISIZE(ip)) endoff = XFS_ISIZE(ip); - bp = xfs_buf_get_uncached(XFS_IS_REALTIME_INODE(ip) ? - mp->m_rtdev_targp : mp->m_ddev_targp, - BTOBB(mp->m_sb.sb_blocksize), 0); - if (!bp) - return -ENOMEM; - - xfs_buf_unlock(bp); - for (offset = startoff; offset <= endoff; offset = lastoffset + 1) { uint lock_mode; @@ -1152,42 +1144,26 @@ xfs_zero_remaining_bytes( ASSERT(imap.br_startblock != DELAYSTARTBLOCK); if (imap.br_state == XFS_EXT_UNWRITTEN) continue; - XFS_BUF_UNDONE(bp); - XFS_BUF_UNWRITE(bp); - XFS_BUF_READ(bp); - XFS_BUF_SET_ADDR(bp, xfs_fsb_to_db(ip, imap.br_startblock)); - if (XFS_FORCED_SHUTDOWN(mp)) { - error = -EIO; - break; - } - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); - if (error) { - xfs_buf_ioerror_alert(bp, - "xfs_zero_remaining_bytes(read)"); - break; + bp = xfs_buf_read_uncached(XFS_IS_REALTIME_INODE(ip) ? + mp->m_rtdev_targp : mp->m_ddev_targp, + xfs_fsb_to_db(ip, imap.br_startblock), + BTOBB(mp->m_sb.sb_blocksize), + 0, NULL); + if (!bp) + return -ENOMEM; + if (bp->b_error) { + error = bp->b_error; + xfs_buf_relse(bp); + return error; } + memset(bp->b_addr + (offset - XFS_FSB_TO_B(mp, imap.br_startoff)), 0, lastoffset - offset + 1); - XFS_BUF_UNDONE(bp); - XFS_BUF_UNREAD(bp); - XFS_BUF_WRITE(bp); - if (XFS_FORCED_SHUTDOWN(mp)) { - error = -EIO; - break; - } - xfs_buf_iorequest(bp); - error = xfs_buf_iowait(bp); - if (error) { - xfs_buf_ioerror_alert(bp, - "xfs_zero_remaining_bytes(write)"); - break; - } + xfs_bwrite(bp); } - xfs_buf_free(bp); return error; } From webmaster@dev102.magizz.com Sat Aug 16 04:46:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 13E077F37 for ; Sat, 16 Aug 2014 04:46:54 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E7822304032 for ; Sat, 16 Aug 2014 02:46:50 -0700 (PDT) X-ASG-Debug-ID: 1408182407-04cb6c54fd4e580001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id BBxETQbeGNQ4bxqZ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 16 Aug 2014 02:46:47 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev102.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev102.magizz.com; s=default; h=Content-Type:Content-Transfer-Encoding:MIME-Version:List-Unsubscribe:Message-ID:Reply-To:From:Date:Subject:To; bh=/ghb0Pe4at666Uy2r6SBKlGrOhAhRojJ8HljdVVdRyI=; b=GdUbkyMcc+UUwLLYQotTMAZaEF2YeA1YvlCVEfrORaOTZZLH/5gF6ePPmmsE0Mkhzqe9MDKdwK1EBAZehpiDeQWqTp4KPtu9Qnx9aTsZS3XUGtE0BrlNGXe3WyiW8Qd5jZ00vckacGAtphB6xUzijgSHEYv5OgUuR+V2cnkJkKI=; Received: from dev102magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XIaZV-0002sj-KS for xfs@oss.sgi.com; Sat, 16 Aug 2014 13:46:49 +0400 To: xfs@oss.sgi.com Subject: Goodbye from our newsletter X-PHP-Script: dev102.magizz.com/mailz/index.php for 66.249.65.46 X-ASG-Orig-Subj: Goodbye from our newsletter Received: from crawl-66-249-65-46.googlebot.com [66.249.65.46] by dev102.magizz.com with HTTP; Sat, 16 Aug 2014 09:46:49 +0000 Date: Sat, 16 Aug 2014 09:46:49 +0000 From: Webmaster Reply-To: Webmaster Message-ID: <2d92b8a7a030a56ebd1280f341c28df6@dev102.magizz.com> X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: systemmessage X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev102.magizz.com List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [503 514] / [47 12] X-AntiAbuse: Sender Address Domain - dev102.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev102magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1408182407 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8504 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Goodbye from our Newsletter, sorry to see you go. 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Thank you From webmaster@dev101.magizz.com Sat Aug 16 20:45:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C1EE87F47 for ; Sat, 16 Aug 2014 20:45:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A1D758F8033 for ; Sat, 16 Aug 2014 18:44:59 -0700 (PDT) X-ASG-Debug-ID: 1408239891-04bdf010a102100001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id 3Haf4sYsjB33yLVB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 16 Aug 2014 18:44:52 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev101.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev101.magizz.com; s=default; h=Content-Type:Content-Transfer-Encoding:MIME-Version:List-Unsubscribe:Message-ID:Reply-To:From:Date:Subject:To; bh=FvGqhmwKkD9ctnKfevRMDEc+ge/0eMcQoO8DbitSmE4=; b=t91H767LR7IHd7YW3KqVsUUP24QcleQ+bnt/054AaAdyTR165tYqipAQo931x0RzKKHjdjbjiIMTWz/Or2RPeXKyFOw7kySu9XmC6bIRuGmu/NwCdrwjGVldAnOCZ0H4Uwq/XGOHbS2c665MSSw1X/XPFduLnI1+5NAQ/CUECyw=; Received: from dev101magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XIpWg-0001Vj-0T for xfs@oss.sgi.com; Sun, 17 Aug 2014 05:44:54 +0400 To: xfs@oss.sgi.com Subject: Goodbye from our newsletter X-PHP-Script: dev101.magizz.com/mailz/index.php for 66.249.65.17 X-ASG-Orig-Subj: Goodbye from our newsletter Received: from crawl-66-249-65-17.googlebot.com [66.249.65.17] by dev101.magizz.com with HTTP; Sun, 17 Aug 2014 01:44:53 +0000 Date: Sun, 17 Aug 2014 01:44:53 +0000 From: Webmaster Reply-To: Webmaster Message-ID: <2e1262d12a75b011baaaee9e7aae434e@dev101.magizz.com> X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: systemmessage X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev101.magizz.com List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [502 513] / [47 12] X-AntiAbuse: Sender Address Domain - dev101.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev101magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1408239892 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8526 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Goodbye from our Newsletter, sorry to see you go. 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Thank you From prithvi_rathore@outlook.com Sat Aug 16 21:06:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D11CE7F47 for ; Sat, 16 Aug 2014 21:06:14 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id BF7268F8033 for ; Sat, 16 Aug 2014 19:06:11 -0700 (PDT) X-ASG-Debug-ID: 1408241166-04cb6c55006cc20001-NocioJ Received: from BLU004-OMC4S29.hotmail.com (blu004-omc4s29.hotmail.com [65.55.111.168]) by cuda.sgi.com with ESMTP id au8XEGsNuF2EfuC3 (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Sat, 16 Aug 2014 19:06:06 -0700 (PDT) X-Barracuda-Envelope-From: prithvi_rathore@outlook.com X-Barracuda-Apparent-Source-IP: 65.55.111.168 Received: from BLU181-W30 ([65.55.111.135]) by BLU004-OMC4S29.hotmail.com with Microsoft SMTPSVC(7.5.7601.22712); Sat, 16 Aug 2014 19:06:06 -0700 X-TMN: [U+ozJsiDrQX6HTzzU9iliibds/uwX4uF] X-Originating-Email: [prithvi_rathore@outlook.com] Message-ID: Content-Type: multipart/alternative; boundary="_cc8907e2-2e31-4777-be6f-9f00e35dd3e4_" From: Prithvi Rathore To: "xfs@oss.sgi.com" Subject: Help setting up XFS Date: Sun, 17 Aug 2014 07:36:06 +0530 X-ASG-Orig-Subj: Help setting up XFS Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 17 Aug 2014 02:06:06.0345 (UTC) FILETIME=[CE065F90:01CFB9BF] X-Barracuda-Connect: blu004-omc4s29.hotmail.com[65.55.111.168] X-Barracuda-Start-Time: 1408241166 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8526 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --_cc8907e2-2e31-4777-be6f-9f00e35dd3e4_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi=2C I am a student currently pursuing my under-graduation and would lo= ve to use XFS. I believe it has a lot to offer and I Iook forwarding to tes= ting and using it on an external device like a pen-drive (USB) for starters= . I was a bit confused on how to set up XFS. I am currently using Ubuntu= 14.04 dual boot (via rEFInd) with Mac OS X on MacBook Air 2013. The va= rious documentation available at xfs.org=2C surely is very informative and = provides an elaborate description on XFS features. Setting XFS up however i= s where i am a bit stuck. From the various online material available=2C I f= ound the following ways: 1) From terminal # sudo apt-get install xfsprogs # sudo apt-get in= stall xfsdump I believe it sets up the version 3.1.9. 2) Another method was=2C that i tried was downloading the tar file from the= sgi link. It downloaded xfs-progs- 3.2.1.tar.gz =20 3) From various discussions done online i found people changing a few setti= ngs in the $ make menuconfig GUI screen=2C hence adding support for XFS= . I am also a bit confused on how to use the device name (USB pen drive) w= hen i will run the mkfs.xfs as I heard it doesn't work for a mounted device= . I know you may be busy and my mail might seem a bit amateur=2C but I wou= ld really appreciate if you could guide me on how to setup XFS and run it f= or a USB device. Any link explaining the same would also be really apprecia= ted. Thank you. Warm Regards = --_cc8907e2-2e31-4777-be6f-9f00e35dd3e4_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi=2C
 =3B &n= bsp=3B I am a student currently pursuing my under-graduation and would love= to use XFS. I believe it has a lot to offer and I Iook forwarding to testi= ng and using it on an external device like a pen-drive (USB) for starters.<= /div>
 =3B  =3B I was a bit confused on how to set up XFS. I am= currently using Ubuntu 14.04 dual boot (via rEFInd) with Mac OS X on MacBo= ok Air 2013. =3B
 =3B  =3B The various documentation = available at xfs.org=2C surely is very informative and provides an elaborat= e description on XFS features. Setting XFS up however is where i am a bit s= tuck. From the various online material available=2C I found the following w= ays:

1) From terminal
 =3B  =3B =  =3B# sudo apt-get install xfsprogs =3B
 =3B  =3B=  =3B# sudo apt-get install xfsdump
 =3B  =3B I belie= ve it sets up the version 3.1.9.

2) Another method= was=2C that i tried was downloading the tar file from the sgi link. It dow= nloaded xfs-progs-  =3B =3B
 =3B  =3B 3.2.1.tar.g= z  =3B =3B

3) From various discussions don= e online i found people changing a few settings in the $ make menuconfig GU= I =3B
 =3B  =3B screen=2C hence adding support for XF= S.

 =3B  =3BI am also a bit confused on ho= w to use the device name (USB pen drive) when i will run the mkfs.xfs as I = heard it doesn't work for a mounted device.
 =3B I know you m= ay be busy and my mail might seem a bit amateur=2C but I would really appre= ciate if you could guide me on how to setup XFS and run it for a USB device= . Any link explaining the same would also be really appreciated. Thank you.=

Warm Regards
= --_cc8907e2-2e31-4777-be6f-9f00e35dd3e4_-- From root@krios.tbi.univie.ac.at Sat Aug 16 23:25:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D55917F4E for ; Sat, 16 Aug 2014 23:25:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id B555A3040BB for ; Sat, 16 Aug 2014 21:25:08 -0700 (PDT) X-ASG-Debug-ID: 1408249505-04bdf0109a06970001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id 0lxi2keh6xrVUq0O for ; Sat, 16 Aug 2014 21:25:06 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id 0BABC5F458; 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Sun, 17 Aug 2014 09:44:46 +0400 To: xfs@oss.sgi.com Subject: Goodbye from our newsletter X-PHP-Script: dev103.magizz.com/mailz/index.php for 66.249.65.54 X-ASG-Orig-Subj: Goodbye from our newsletter Received: from crawl-66-249-65-54.googlebot.com [66.249.65.54] by dev103.magizz.com with HTTP; Sun, 17 Aug 2014 05:44:44 +0000 Date: Sun, 17 Aug 2014 05:44:46 +0000 From: Webmaster Reply-To: Webmaster Message-ID: X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: systemmessage X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev103.magizz.com List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [506 517] / [47 12] X-AntiAbuse: Sender Address Domain - dev103.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev103magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1408254284 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8531 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Goodbye from our Newsletter, sorry to see you go. You have been unsubscribed from our newsletters. This is the last email you will receive from us. Our newsletter system, phpList, will refuse to send you any further messages, without manual intervention by our administrator. If there is an error in this information, you can re-subscribe: please go to http://dev103.magizz.com/mailz/?p=subscribe and follow the steps. Thank you From sandeen@sandeen.net Sun Aug 17 13:21:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D2EBC7F3F for ; Sun, 17 Aug 2014 13:21:26 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A3C988F8037 for ; Sun, 17 Aug 2014 11:21:23 -0700 (PDT) X-ASG-Debug-ID: 1408299677-04bdf010a11bf60001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id rSEtW7pzVAv9cJcZ for ; Sun, 17 Aug 2014 11:21:17 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id F14DE63C3BD2; Sun, 17 Aug 2014 13:21:16 -0500 (CDT) Message-ID: <53F0F29C.3080707@sandeen.net> Date: Sun, 17 Aug 2014 13:21:16 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Prithvi Rathore , "xfs@oss.sgi.com" Subject: Re: Help setting up XFS References: X-ASG-Orig-Subj: Re: Help setting up XFS In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408299677 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8549 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- You don't yet need xfs-specific information, I think you need some very basic linux help. There is a lot of it out there if you look, for example: https://www.google.com/search?q=how+to+format+a+usb+drive+with+linux -Eric On 8/16/14, 9:06 PM, Prithvi Rathore wrote: > Hi, > I am a student currently pursuing my under-graduation and would love to use XFS. I believe it has a lot to offer and I Iook forwarding to testing and using it on an external device like a pen-drive (USB) for starters. > I was a bit confused on how to set up XFS. I am currently using Ubuntu 14.04 dual boot (via rEFInd) with Mac OS X on MacBook Air 2013. > The various documentation available at xfs.org, surely is very informative and provides an elaborate description on XFS features. Setting XFS up however is where i am a bit stuck. From the various online material available, I found the following ways: > > 1) From terminal > # sudo apt-get install xfsprogs > # sudo apt-get install xfsdump > I believe it sets up the version 3.1.9. > > 2) Another method was, that i tried was downloading the tar file from the sgi link. It downloaded xfs-progs- > 3.2.1.tar.gz > > 3) From various discussions done online i found people changing a few settings in the $ make menuconfig GUI > screen, hence adding support for XFS. > > I am also a bit confused on how to use the device name (USB pen drive) when i will run the mkfs.xfs as I heard it doesn't work for a mounted device. > I know you may be busy and my mail might seem a bit amateur, but I would really appreciate if you could guide me on how to setup XFS and run it for a USB device. Any link explaining the same would also be really appreciated. Thank you. > > Warm Regards > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From mlsemon35@gmail.com Sun Aug 17 21:03:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8F7137F3F for ; Sun, 17 Aug 2014 21:03:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 7B867304043 for ; Sun, 17 Aug 2014 19:03:41 -0700 (PDT) X-ASG-Debug-ID: 1408327416-04cb6c54fe884a0001-NocioJ Received: from mail-yk0-f179.google.com (mail-yk0-f179.google.com [209.85.160.179]) by cuda.sgi.com with ESMTP id WvZuwiWjPSo2sUYs (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sun, 17 Aug 2014 19:03:36 -0700 (PDT) X-Barracuda-Envelope-From: mlsemon35@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.160.179 X-Barracuda-IPDD: Level1 [gmail.com/209.85.160.179] Received: by mail-yk0-f179.google.com with SMTP id 142so3821263ykq.38 for ; Sun, 17 Aug 2014 19:03:36 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.160.179] X-Barracuda-IPDD: Level1 [gmail.com/209.85.160.179] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; bh=SUl6LECrmILOnnRpjgH78o70tv2LLPlW7QCvjZspbck=; b=JkK1sVzVzJV5yr11lyhY8Cj9WNFJEF/1HRyNtgu+YX8Dr998RdmLCJXvikNA4FcDNa fRcOs9ts8wFFufFq9tUKeX4OYSZkUHfRzo4n1Mew1e8Wx63gdD5DJcb4SNdZrNq/P2jM DUMWYC8IMum8OuugJE2JIAJmVzJUdbqAoejjo9XOXcm5o0CRh0XtviUo+vanoT0eqA82 x85AtORhegjcE9M0TY+fPGdwK1qMExbAZnYqfsJBr2u9GVm+rUYK9C/IrxN/7u6A8zHf BpLXG2srg26ebRnG80Vg1AqFqjIvaqptGBKJAP3yfWV8xDYlBOvvcivAHOHjGCZmbumK ekgw== X-Received: by 10.236.135.212 with SMTP id u60mr1133415yhi.118.1408327416245; Sun, 17 Aug 2014 19:03:36 -0700 (PDT) Received: from yholen.semon.net (rrcs-97-76-23-49.se.biz.rr.com. [97.76.23.49]) by mx.google.com with ESMTPSA id m23sm180876yhi.44.2014.08.17.19.03.35 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 17 Aug 2014 19:03:35 -0700 (PDT) Message-ID: <53F15EEF.4090308@gmail.com> Date: Sun, 17 Aug 2014 22:03:27 -0400 From: "Michael L. Semon" User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: "xfs@oss.sgi.com" Subject: xfsdump completes very prematurely in low RAM, commit found Content-Type: text/plain; charset=utf-8; format=flowed X-ASG-Orig-Subj: xfsdump completes very prematurely in low RAM, commit found Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-yk0-f179.google.com[209.85.160.179] X-Barracuda-Start-Time: 1408327416 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8562 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hi! I had some phantom issues that are chasing me through this 3.17 merge window period. While chasing those issues, I decided to do an xfsdump of a v5/finobt XFS system rescued from PEBKAC issues. The xfsdump completed rather prematurely, ending like this test case output... xfsdump: dumping special file ino 4194523 mode 0x21b0 xfsdump: dumping special file ino 4194524 mode 0x21b0 xfsdump: dumping special file ino 4194525 mode 0x21b0 xfsdump: dumping special file ino 4194526 mode 0x21b0 xfsdump: dumping special file ino 4194527 mode 0x21b0 xfsdump: ending media file xfsdump: media file size 4512992 bytes xfsdump: ending stream: 23 seconds elapsed xfsdump: dump size (non-dir files) : 4452088 bytes xfsdump: dump complete: 23 seconds elapsed xfsdump: Dump Summary: xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) xfsdump: Dump Status: SUCCESS That looks fine for a lack of obvious error messages. However, it should end like this: xfsdump: dumping regular file ino 13653551 offset 0 to offset 12154 (size 12154) xfsdump: dumping regular file ino 13653555 offset 0 to offset 16554 (size 16554) xfsdump: dumping regular file ino 13653556 offset 0 to offset 185 (size 185) xfsdump: dumping regular file ino 13653557 offset 0 to offset 471 (size 471) xfsdump: dumping special file ino 13653558 mode 0xa1ff xfsdump: ending media file xfsdump: media file size 1999127056 bytes xfsdump: ending stream: 465 seconds elapsed xfsdump: dump size (non-dir files) : 1963549104 bytes xfsdump: dump complete: 465 seconds elapsed xfsdump: Dump Summary: xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) xfsdump: Dump Status: SUCCESS Note that I haven't freed enough time to check this on v4-superblock XFS. I've tested v5 and v5/finobt XFS filesystems, 4k block size, no external logdev or rtdev. The earliest kernel tested was an old 3.16.0-rc2 kernel left lying around referenced by lilo.conf, and that kernel was OK. Not sure if this kernel has XFS quota support in it, need to recheck. The test commands, meant to back up $TEST_DEV to $SCRATCH_DEV, was this: #!/bin/sh mount $TEST_DEV $TEST_DIR mount $SCRATCH_DEV $SCRATCH_MNT rm -v $SCRATCH_MNT/blah.0.dump xfsdump -v 2 -l 0 -L tl -M tm -f $SCRATCH_MNT/blah.0.dump $TEST_DEV Bisect brought me here: root@oldsvrhw:/usr/src/kernel-git/linux# git bisect bad c7cb51dcb0a38624d42eeabb38502fa54a4d774b is the first bad commit commit c7cb51dcb0a38624d42eeabb38502fa54a4d774b Author: Jie Liu Date: Thu Jul 24 12:18:47 2014 +1000 xfs: fix error handling at xfs_inumbers From: Jie Liu To fetch the file system number tables, we currently just ignore the errors and proceed to loop over the next AG or bump agino to the next chunk in case of btree operations failed, that is not properly because those errors might hint us potential file system problems. This patch rework xfs_inumbers() to handle the btree operation errors as well as the loop conditions. Signed-off-by: Jie Liu Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner :040000 040000 ec78dc86468ee00df7a63bba97a135b8c6a84a95 2e447774a8f85b1b8d43ffa9fd28cbea3402d717 M fs Maybe Jeff's patch is doing its job. After all, on several successful test runs, the kernel was sending messages like (paraphrased) "BUG: bad state in page table" to remote syslog. The Pentium III PC has too little memory (512 MB) to do this job. However, I think that the xfsdump should last more than 23 seconds before causing issues. Might someone try an xfsdump or two to see if this are still working to most people's satisfaction, on a kernel past 3.16.0-rc2 that has this commit in it? Thanks! Michael [Full xfsdump for the failed case is below:] xfsdump: using file dump (drive_simple) strategy xfsdump: version 3.1.4 (dump format 3.0) xfsdump: level 0 dump of oldsvrhw:/mnt/xfstests-test xfsdump: dump date: Sun Aug 17 20:11:48 2014 xfsdump: session id: 8bc58167-a96a-4628-9143-13fa7fb20df9 xfsdump: session label: "tl" xfsdump: ino map phase 1: constructing initial dump list xfsdump: ino map phase 2: skipping (no pruning necessary) xfsdump: ino map phase 3: skipping (only one dump stream) xfsdump: ino map construction complete xfsdump: estimated dump size: 2178363264 bytes xfsdump: creating dump session media file 0 (media 0, file 0) xfsdump: dumping ino map xfsdump: dumping directories xfsdump: dumping directory ino 96 xfsdump: dumping directory ino 99 xfsdump: dumping non-directory files xfsdump: dumping special file ino 100 mode 0xa1ff xfsdump: dumping regular file ino 101 offset 0 to offset 35680 (size 35680) xfsdump: dumping regular file ino 102 offset 0 to offset 4468 (size 4468) xfsdump: dumping regular file ino 103 offset 0 to offset 109680 (size 109680) xfsdump: dumping special file ino 104 mode 0xa1ff xfsdump: dumping regular file ino 105 offset 0 to offset 32192 (size 32192) xfsdump: dumping regular file ino 106 offset 0 to offset 24640 (size 24640) xfsdump: dumping regular file ino 107 offset 0 to offset 925012 (size 925012) xfsdump: dumping special file ino 108 mode 0xa1ff xfsdump: dumping special file ino 109 mode 0xa1ff xfsdump: dumping regular file ino 110 offset 0 to offset 29252 (size 29252) xfsdump: dumping regular file ino 111 offset 0 to offset 9824 (size 9824) xfsdump: dumping regular file ino 112 offset 0 to offset 47008 (size 47008) xfsdump: dumping regular file ino 113 offset 0 to offset 53888 (size 53888) xfsdump: dumping regular file ino 114 offset 0 to offset 55232 (size 55232) xfsdump: dumping regular file ino 115 offset 0 to offset 51776 (size 51776) xfsdump: dumping regular file ino 116 offset 0 to offset 57312 (size 57312) xfsdump: dumping regular file ino 117 offset 0 to offset 30592 (size 30592) xfsdump: dumping regular file ino 118 offset 0 to offset 26784 (size 26784) xfsdump: dumping regular file ino 119 offset 0 to offset 30528 (size 30528) xfsdump: dumping special file ino 120 mode 0xa1ff xfsdump: dumping regular file ino 121 offset 0 to offset 129152 (size 129152) xfsdump: dumping regular file ino 122 offset 0 to offset 134348 (size 134348) xfsdump: dumping special file ino 123 mode 0xa1ff xfsdump: dumping regular file ino 124 offset 0 to offset 110432 (size 110432) xfsdump: dumping regular file ino 125 offset 0 to offset 39072 (size 39072) xfsdump: dumping regular file ino 126 offset 0 to offset 56704 (size 56704) xfsdump: dumping regular file ino 127 offset 0 to offset 60804 (size 60804) xfsdump: dumping regular file ino 128 offset 0 to offset 100648 (size 100648) xfsdump: dumping regular file ino 129 offset 0 to offset 195400 (size 195400) xfsdump: dumping regular file ino 130 offset 0 to offset 115296 (size 115296) xfsdump: dumping regular file ino 131 offset 0 to offset 33344 (size 33344) xfsdump: dumping regular file ino 132 offset 0 to offset 24096 (size 24096) xfsdump: dumping regular file ino 133 offset 0 to offset 20260 (size 20260) xfsdump: dumping special file ino 134 mode 0xa1ff xfsdump: dumping special file ino 135 mode 0xa1ff xfsdump: dumping regular file ino 136 offset 0 to offset 108544 (size 108544) xfsdump: dumping regular file ino 137 offset 0 to offset 25376 (size 25376) xfsdump: dumping regular file ino 138 offset 0 to offset 43832 (size 43832) xfsdump: dumping regular file ino 139 offset 0 to offset 137504 (size 137504) xfsdump: dumping regular file ino 140 offset 0 to offset 24576 (size 24576) xfsdump: dumping regular file ino 141 offset 0 to offset 27360 (size 27360) xfsdump: dumping regular file ino 142 offset 0 to offset 102080 (size 102080) xfsdump: dumping regular file ino 143 offset 0 to offset 108416 (size 108416) xfsdump: dumping regular file ino 144 offset 0 to offset 22720 (size 22720) xfsdump: dumping regular file ino 145 offset 0 to offset 104480 (size 104480) xfsdump: dumping regular file ino 146 offset 0 to offset 35040 (size 35040) xfsdump: dumping regular file ino 147 offset 0 to offset 32096 (size 32096) xfsdump: dumping regular file ino 148 offset 0 to offset 26976 (size 26976) xfsdump: dumping regular file ino 149 offset 0 to offset 7004 (size 7004) xfsdump: dumping regular file ino 150 offset 0 to offset 66212 (size 66212) xfsdump: dumping regular file ino 151 offset 0 to offset 24276 (size 24276) xfsdump: dumping special file ino 152 mode 0xa1ff xfsdump: dumping regular file ino 153 offset 0 to offset 534580 (size 534580) xfsdump: dumping regular file ino 154 offset 0 to offset 9848 (size 9848) xfsdump: dumping special file ino 155 mode 0xa1ff xfsdump: dumping regular file ino 156 offset 0 to offset 359024 (size 359024) xfsdump: dumping regular file ino 157 offset 0 to offset 27136 (size 27136) xfsdump: dumping regular file ino 158 offset 0 to offset 2301 (size 2301) xfsdump: dumping regular file ino 159 offset 0 to offset 5927 (size 5927) xfsdump: dumping special file ino 4194464 mode 0x21b0 xfsdump: dumping special file ino 4194465 mode 0x21b0 xfsdump: dumping special file ino 4194466 mode 0x21b0 xfsdump: dumping special file ino 4194467 mode 0x21b0 xfsdump: dumping special file ino 4194468 mode 0x21b0 xfsdump: dumping special file ino 4194469 mode 0x21b0 xfsdump: dumping special file ino 4194470 mode 0x21b0 xfsdump: dumping special file ino 4194471 mode 0x21b0 xfsdump: dumping special file ino 4194472 mode 0x21b0 xfsdump: dumping special file ino 4194473 mode 0x21b0 xfsdump: dumping special file ino 4194474 mode 0x21b0 xfsdump: dumping special file ino 4194475 mode 0x21b0 xfsdump: dumping special file ino 4194476 mode 0x21b0 xfsdump: dumping special file ino 4194477 mode 0x21b0 xfsdump: dumping special file ino 4194478 mode 0x21b0 xfsdump: dumping special file ino 4194479 mode 0x21b0 xfsdump: dumping special file ino 4194480 mode 0x21b0 xfsdump: dumping special file ino 4194481 mode 0x21b0 xfsdump: dumping special file ino 4194482 mode 0x21b0 xfsdump: dumping special file ino 4194483 mode 0x21b0 xfsdump: dumping special file ino 4194484 mode 0x21b0 xfsdump: dumping special file ino 4194485 mode 0x21b0 xfsdump: dumping special file ino 4194486 mode 0x21b0 xfsdump: dumping special file ino 4194487 mode 0x21b0 xfsdump: dumping special file ino 4194488 mode 0x21b0 xfsdump: dumping special file ino 4194489 mode 0x21b0 xfsdump: dumping special file ino 4194490 mode 0x21b0 xfsdump: dumping special file ino 4194491 mode 0x21b0 xfsdump: dumping special file ino 4194492 mode 0x21b0 xfsdump: dumping special file ino 4194493 mode 0x21b0 xfsdump: dumping special file ino 4194494 mode 0x21b0 xfsdump: dumping special file ino 4194495 mode 0x21b0 xfsdump: dumping special file ino 4194496 mode 0x21b0 xfsdump: dumping special file ino 4194497 mode 0x21b0 xfsdump: dumping special file ino 4194498 mode 0x21b0 xfsdump: dumping special file ino 4194499 mode 0x21b0 xfsdump: dumping special file ino 4194500 mode 0x21b0 xfsdump: dumping special file ino 4194501 mode 0x21b0 xfsdump: dumping special file ino 4194502 mode 0x21b0 xfsdump: dumping special file ino 4194503 mode 0x21b0 xfsdump: dumping special file ino 4194504 mode 0x21b0 xfsdump: dumping special file ino 4194505 mode 0x21b0 xfsdump: dumping special file ino 4194506 mode 0x21b0 xfsdump: dumping special file ino 4194507 mode 0x21b0 xfsdump: dumping special file ino 4194508 mode 0x21b0 xfsdump: dumping special file ino 4194509 mode 0x21b0 xfsdump: dumping special file ino 4194510 mode 0x21b0 xfsdump: dumping special file ino 4194511 mode 0x21b0 xfsdump: dumping special file ino 4194512 mode 0x21b0 xfsdump: dumping special file ino 4194513 mode 0x21b0 xfsdump: dumping special file ino 4194514 mode 0x21b0 xfsdump: dumping special file ino 4194515 mode 0x21b0 xfsdump: dumping special file ino 4194516 mode 0x21b0 xfsdump: dumping special file ino 4194517 mode 0x21b0 xfsdump: dumping special file ino 4194518 mode 0x21b0 xfsdump: dumping special file ino 4194519 mode 0x21b0 xfsdump: dumping special file ino 4194520 mode 0x21b0 xfsdump: dumping special file ino 4194521 mode 0x21b0 xfsdump: dumping special file ino 4194522 mode 0x21b0 xfsdump: dumping special file ino 4194523 mode 0x21b0 xfsdump: dumping special file ino 4194524 mode 0x21b0 xfsdump: dumping special file ino 4194525 mode 0x21b0 xfsdump: dumping special file ino 4194526 mode 0x21b0 xfsdump: dumping special file ino 4194527 mode 0x21b0 xfsdump: ending media file xfsdump: media file size 4512992 bytes xfsdump: ending stream: 23 seconds elapsed xfsdump: dump size (non-dir files) : 4452088 bytes xfsdump: dump complete: 23 seconds elapsed xfsdump: Dump Summary: xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) xfsdump: Dump Status: SUCCESS From david@fromorbit.com Sun Aug 17 21:41:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 366F77F50 for ; Sun, 17 Aug 2014 21:41:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id C4C97AC001 for ; Sun, 17 Aug 2014 19:41:20 -0700 (PDT) X-ASG-Debug-ID: 1408329677-04bdf010a0270d0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id NMCQQYGcT1kKIm5G for ; Sun, 17 Aug 2014 19:41:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhURAKNm8VN5LDJ8PGdsb2JhbABZgw2BKoIshQeoAQEBAQMGnnyFewGBEBcFAQEBATg2hAMBAQQBOhwjBQsIAxQBAwklDwUlAwcaE4g6B8EnFxiFZIkdMweETAWcQZZnHoFuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 18 Aug 2014 12:11:16 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJCsk-0000on-Ub; Mon, 18 Aug 2014 12:41:14 +1000 Date: Mon, 18 Aug 2014 12:41:14 +1000 From: Dave Chinner To: "Michael L. Semon" Cc: "xfs@oss.sgi.com" Subject: Re: xfsdump completes very prematurely in low RAM, commit found Message-ID: <20140818024114.GK20518@dastard> X-ASG-Orig-Subj: Re: xfsdump completes very prematurely in low RAM, commit found References: <53F15EEF.4090308@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <53F15EEF.4090308@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1408329678 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8563 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Sun, Aug 17, 2014 at 10:03:27PM -0400, Michael L. Semon wrote: > Hi! I had some phantom issues that are chasing me through this 3.17 > merge window period. While chasing those issues, I decided to do an > xfsdump of a v5/finobt XFS system rescued from PEBKAC issues. The > xfsdump completed rather prematurely, ending like this test case > output... >=20 > xfsdump: dumping special file ino 4194523 mode 0x21b0 > xfsdump: dumping special file ino 4194524 mode 0x21b0 > xfsdump: dumping special file ino 4194525 mode 0x21b0 > xfsdump: dumping special file ino 4194526 mode 0x21b0 > xfsdump: dumping special file ino 4194527 mode 0x21b0 > xfsdump: ending media file > xfsdump: media file size 4512992 bytes > xfsdump: ending stream: 23 seconds elapsed > xfsdump: dump size (non-dir files) : 4452088 bytes > xfsdump: dump complete: 23 seconds elapsed > xfsdump: Dump Summary: > xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) > xfsdump: Dump Status: SUCCESS >=20 > That looks fine for a lack of obvious error messages. However, it > should end like this: >=20 > xfsdump: dumping regular file ino 13653551 offset 0 to offset 12154 (size= 12154) > xfsdump: dumping regular file ino 13653555 offset 0 to offset 16554 (size= 16554) > xfsdump: dumping regular file ino 13653556 offset 0 to offset 185 (size 1= 85) > xfsdump: dumping regular file ino 13653557 offset 0 to offset 471 (size 4= 71) > xfsdump: dumping special file ino 13653558 mode 0xa1ff > xfsdump: ending media file > xfsdump: media file size 1999127056 bytes > xfsdump: ending stream: 465 seconds elapsed > xfsdump: dump size (non-dir files) : 1963549104 bytes > xfsdump: dump complete: 465 seconds elapsed > xfsdump: Dump Summary: > xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) > xfsdump: Dump Status: SUCCESS What's the inode number progression of a successful dump at the point at which the incomplete dump ends? i.e. around inode 4194527? That number is one inode chunk short of 2^22, which implies that there is a failure or some kind moving from one AG to the next. The progrssion of inode numbers will tell me whether this is the case or not... > Bisect brought me here: >=20 > root@oldsvrhw:/usr/src/kernel-git/linux# git bisect bad > c7cb51dcb0a38624d42eeabb38502fa54a4d774b is the first bad commit > =1B[33mcommit c7cb51dcb0a38624d42eeabb38502fa54a4d774b=1B[m > Author: Jie Liu > Date: Thu Jul 24 12:18:47 2014 +1000 >=20 > xfs: fix error handling at xfs_inumbers > From: Jie Liu > To fetch the file system number tables, we currently just ignore the > errors and proceed to loop over the next AG or bump agino to the next > chunk in case of btree operations failed, that is not properly because > those errors might hint us potential file system problems. > This patch rework xfs_inumbers() to handle the btree operation errors > as well as the loop conditions. > Signed-off-by: Jie Liu > Reviewed-by: Dave Chinner > Signed-off-by: Dave Chinner >=20 > :040000 040000 ec78dc86468ee00df7a63bba97a135b8c6a84a95 2e447774a8f85b1b8= d43ffa9fd28cbea3402d717 M fs >=20 > Maybe Jeff's patch is doing its job. After all, on several successful > test runs, the kernel was sending messages like (paraphrased) "BUG: bad > state in page table" to remote syslog. The Pentium III PC has too > little memory (512 MB) to do this job. However, I think that the > xfsdump should last more than 23 seconds before causing issues. Memory should not matter for counting the number of inodes or extracting them from the kernel. Cheers, Dave. --=20 Dave Chinner david@fromorbit.com From stan@hardwarefreak.com Sun Aug 17 22:29:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 631367F54 for ; Sun, 17 Aug 2014 22:29:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 42F318F8037 for ; Sun, 17 Aug 2014 20:29:26 -0700 (PDT) X-ASG-Debug-ID: 1408332561-04cbb054879cac0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id Cu3E0fiuYkI5IsMQ for ; Sun, 17 Aug 2014 20:29:22 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id 874046C190; Sun, 17 Aug 2014 22:29:21 -0500 (CDT) To: Subject: inode64 directory placement determinism X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: inode64 directory placement determinism MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Sun, 17 Aug 2014 22:29:21 -0500 From: Stan Hoeppner Message-ID: X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1408332562 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Say I have a single 4TB disk in an md linear device. The md device has a filesystem on it formatted with defaults. It has 4 AGs, 0-3. I have created 4 directories. Each should reside in a different AG, the first in AG0. Now I expand the linear device with an identical 4TB disk and execute xfs_growfs. I now have 4 more AGs, 4-7. I create 4 more directories. Will these 4 new dirs be created sequentially in AGs 4-7, or in the first 4 AGs? Is this deterministic, or is there any chance involved? On the real system these 4TB drives are actually 48TB LUNs. I'm after deterministic parallel bandwidth to subsequently added RAIDs after each grow operation by simply writing to the proper directory. Currently we have kernel 3.4.26 to work with if that's relevant. I may be able to get the kernel team to go for 3.4.103 for the bugfixes, but I don't know about anything newer. This is an embedded type development process. Thanks, Stan From prithvi_rathore@outlook.com Sun Aug 17 23:52:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E349C7F56 for ; Sun, 17 Aug 2014 23:52:39 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id C033F8F8035 for ; Sun, 17 Aug 2014 21:52:39 -0700 (PDT) X-ASG-Debug-ID: 1408337557-04bdf010a12a4f0001-NocioJ Received: from BLU004-OMC4S37.hotmail.com (blu004-omc4s37.hotmail.com [65.55.111.176]) by cuda.sgi.com with ESMTP id 6LeH0OKxDw2wiGjO (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Sun, 17 Aug 2014 21:52:38 -0700 (PDT) X-Barracuda-Envelope-From: prithvi_rathore@outlook.com X-Barracuda-Apparent-Source-IP: 65.55.111.176 Received: from BLU181-W36 ([65.55.111.136]) by BLU004-OMC4S37.hotmail.com with Microsoft SMTPSVC(7.5.7601.22712); Sun, 17 Aug 2014 21:52:37 -0700 X-TMN: [YXPO/1GegugaOCR4z+2anEJ31vcvjl+UuFrEC+G7L0M=] X-Originating-Email: [prithvi_rathore@outlook.com] Message-ID: Content-Type: multipart/alternative; boundary="_778d5abc-5bb2-43e2-80ee-7e747e57d65a_" From: Prithvi Rathore To: Subject: [RFD]: Help in setting up XFS Date: Mon, 18 Aug 2014 10:22:37 +0530 X-ASG-Orig-Subj: [RFD]: Help in setting up XFS Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 18 Aug 2014 04:52:37.0529 (UTC) FILETIME=[3BA5D090:01CFBAA0] X-Barracuda-Connect: blu004-omc4s37.hotmail.com[65.55.111.176] X-Barracuda-Start-Time: 1408337558 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8566 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --_778d5abc-5bb2-43e2-80ee-7e747e57d65a_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi=2C As the subject states=2C I would like to setup and use XFS on an external U= SB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013. My understanding is: 1) I will have to install the packages $ sudo apt-get install xfsprogs $ sudo apt-get install xfsdump 2) I will have to create the filesystem for the USB drive $ mkfs.xfs -f dev/sdab1 -f option needed to overwrite any exisitng filesytem I would appreciate if you could add any comments or guide me for the same. = Thanking you in anticipation=20 = --_778d5abc-5bb2-43e2-80ee-7e747e57d65a_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi=2C
As the subject states= =2C I would like to setup and use XFS on an external USB drive. I am curren= tly using Ubuntu 14.04 on MacBook Air 2013.
My understanding is:

= 1) I will have to install the packages
$ sudo apt-get install xfsprogs$ sudo apt-get install xfsdump

2) I will have to create the filesy= stem for the USB drive
$ mkfs.xfs -f dev/sdab1
-f option needed to ov= erwrite any exisitng filesytem

I would appreciate if you could add a= ny comments or guide me for the same. Thanking you in anticipation
=
= --_778d5abc-5bb2-43e2-80ee-7e747e57d65a_-- From david@fromorbit.com Mon Aug 18 02:02:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0D0AB7F56 for ; Mon, 18 Aug 2014 02:02:03 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id DA03F304062 for ; Mon, 18 Aug 2014 00:02:02 -0700 (PDT) X-ASG-Debug-ID: 1408345316-04bdf0109a2dab0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id kbGMROBEgWgmBd9k for ; Mon, 18 Aug 2014 00:01:57 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhQRAD+k8VN5LDJ8PGdsb2JhbABZgw2BKoIshQeoBwEBAQMGnnyFewGBFRcFAQEBATg2hAMBAQQBOhwjBQsIAxgJJQ8FJQMHGhOIOgfBExcYhWSJUAeETAWcQZhzKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 18 Aug 2014 16:31:55 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJGwz-0001JR-E6; Mon, 18 Aug 2014 17:01:53 +1000 Date: Mon, 18 Aug 2014 17:01:53 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: inode64 directory placement determinism Message-ID: <20140818070153.GL20518@dastard> X-ASG-Orig-Subj: Re: inode64 directory placement determinism References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408345316 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8569 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Aug 17, 2014 at 10:29:21PM -0500, Stan Hoeppner wrote: > Say I have a single 4TB disk in an md linear device. The md device has a > filesystem on it formatted with defaults. It has 4 AGs, 0-3. I have > created 4 directories. Each should reside in a different AG, the first in > AG0. Now I expand the linear device with an identical 4TB disk and execute > xfs_growfs. I now have 4 more AGs, 4-7. I create 4 more directories. > > Will these 4 new dirs be created sequentially in AGs 4-7, or in the first > 4 AGs? Is this deterministic, or is there any chance involved? On the Deterministic, assuming single threaded *file-system-wide* directory creation. Completely unpredictable under concurrent directory creations. See xfs_ialloc_ag_select/xfs_ialloc_next_ag. Note that the rotor used to select the next AG is set to zero at mount. i.e. single threaded behaviour at agcount = 4: dir number rotor value destination AG 1 0 0 2 1 1 3 2 2 4 3 3 5 0 0 6 1 1 .... So, if you do what you suggest, and grow *after* the first 4 dirs are created, the above is what you'll get because the rotor goes back to zero on the fourth directory create. Now, with changing from 4 to 8 AGs after the first 4: dir number rotor value new inode location (AG) 1 0 0 2 1 1 3 2 2 4 3 3 5 0 0 6 1 1 7 2 2 8 3 3 9 4 4 10 5 5 11 6 6 13 7 7 14 0 0 > real system these 4TB drives are actually 48TB LUNs. I'm after > deterministic parallel bandwidth to subsequently added RAIDs after each > grow operation by simply writing to the proper directory. Just create new directories and use the inode number to determine their location. If the directory is not in the correct AG, remove it and create a new one, until you have directories located in the AGs you want. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 18 02:03:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1B6897F5A for ; Mon, 18 Aug 2014 02:03:16 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id EB1A7304032 for ; Mon, 18 Aug 2014 00:03:15 -0700 (PDT) X-ASG-Debug-ID: 1408345393-04bdf010a02db30001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 48iE7WfVtMBDYEIH for ; Mon, 18 Aug 2014 00:03:14 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AhMRAD+k8VN5LDJ8PGdsb2JhbABZgw2BKoIshQeoBwEBAQMGnnyFewGBFRcFAQEBATg2hAQBBTocIxAIAxgJJQ8FJQMHGhOIQcETFxiFZIlQB4RMAQScQYwHjGwrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 18 Aug 2014 16:33:13 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJGyG-0001Jc-GD; Mon, 18 Aug 2014 17:03:12 +1000 Date: Mon, 18 Aug 2014 17:03:12 +1000 From: Dave Chinner To: Prithvi Rathore Cc: xfs@oss.sgi.com Subject: Re: [RFD]: Help in setting up XFS Message-ID: <20140818070312.GM20518@dastard> X-ASG-Orig-Subj: Re: [RFD]: Help in setting up XFS References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408345393 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8569 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 18, 2014 at 10:22:37AM +0530, Prithvi Rathore wrote: > Hi, > As the subject states, I would like to setup and use XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013. > My understanding is: > > 1) I will have to install the packages > $ sudo apt-get install xfsprogs > $ sudo apt-get install xfsdump > > 2) I will have to create the filesystem for the USB drive > $ mkfs.xfs -f dev/sdab1 > -f option needed to overwrite any exisitng filesytem And then mount it appropriately and it will be ready to use. Nothing more. Cheers, Dave. -- Dave Chinner david@fromorbit.com From prithvi_rathore@outlook.com Mon Aug 18 04:30:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id F20CF7F5E for ; Mon, 18 Aug 2014 04:30:32 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id C29948F8033 for ; Mon, 18 Aug 2014 02:30:32 -0700 (PDT) X-ASG-Debug-ID: 1408354231-04cb6c54ff93c70001-NocioJ Received: from BLU004-OMC3S18.hotmail.com (blu004-omc3s18.hotmail.com [65.55.116.93]) by cuda.sgi.com with ESMTP id rlATVfdjVxrTuGhz (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Mon, 18 Aug 2014 02:30:31 -0700 (PDT) X-Barracuda-Envelope-From: prithvi_rathore@outlook.com X-Barracuda-Apparent-Source-IP: 65.55.116.93 Received: from BLU181-W78 ([65.55.116.72]) by BLU004-OMC3S18.hotmail.com with Microsoft SMTPSVC(7.5.7601.22712); Mon, 18 Aug 2014 02:30:31 -0700 X-TMN: [Fcp6bJwZaVaKHFvQN1Y7x3TgrZGR6M3u] X-Originating-Email: [prithvi_rathore@outlook.com] Message-ID: Content-Type: multipart/alternative; boundary="_09d2918f-baef-4603-8baa-c49e0b391deb_" From: Prithvi Rathore To: Dave Chinner , "xfs@oss.sgi.com" Subject: RE: [RFD]: Help in setting up XFS Date: Mon, 18 Aug 2014 15:00:31 +0530 X-ASG-Orig-Subj: RE: [RFD]: Help in setting up XFS Importance: Normal In-Reply-To: <20140818070312.GM20518@dastard> References: ,<20140818070312.GM20518@dastard> MIME-Version: 1.0 X-OriginalArrivalTime: 18 Aug 2014 09:30:31.0219 (UTC) FILETIME=[0DF10030:01CFBAC7] X-Barracuda-Connect: blu004-omc3s18.hotmail.com[65.55.116.93] X-Barracuda-Start-Time: 1408354231 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8572 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message --_09d2918f-baef-4603-8baa-c49e0b391deb_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Dave=2C I really appreciate you help in this matter. > Date: Mon=2C 18 Aug 2014 17:03:12 +1000 > From: david@fromorbit.com > To: prithvi_rathore@outlook.com > CC: xfs@oss.sgi.com > Subject: Re: [RFD]: Help in setting up XFS >=20 > On Mon=2C Aug 18=2C 2014 at 10:22:37AM +0530=2C Prithvi Rathore wrote: > > Hi=2C > > As the subject states=2C I would like to setup and use XFS on an extern= al USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013. > > My understanding is: > >=20 > > 1) I will have to install the packages > > $ sudo apt-get install xfsprogs > > $ sudo apt-get install xfsdump > >=20 > > 2) I will have to create the filesystem for the USB drive > > $ mkfs.xfs -f dev/sdab1 > > -f option needed to overwrite any existing filesytem =20 > And then mount it appropriately and it will be ready to use. > Nothing more. About the part where you say mount it properly=2C I just wanted to check if= this is correct. 1)Create a mount point. $ mkdir /mnt/dat1 2)Mount the drive. $ mount -t xfs /dev/sdc1 /mnt/dat1 And i will have to do this every time I want to use the pendrive Warm Regards=2C Prithvi = --_09d2918f-baef-4603-8baa-c49e0b391deb_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Dave=2C
 =3B =3B I= really appreciate you help in this matter.

>=3B Date: Mon=2C= 18 Aug 2014 17:03:12 +1000
>=3B From: david@fromorbit.com
>=3B T= o: prithvi_rathore@outlook.com
>=3B CC: xfs@oss.sgi.com
>=3B Subj= ect: Re: [RFD]: Help in setting up XFS
>=3B
>=3B On Mon=2C Aug 1= 8=2C 2014 at 10:22:37AM +0530=2C Prithvi Rathore wrote:
>=3B >=3B Hi= =2C
>=3B >=3B As the subject states=2C I would like to setup and use= XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook= Air 2013.
>=3B >=3B My understanding is:
>=3B >=3B
>= =3B >=3B 1) I will have to install the packages
>=3B >=3B $ sudo a= pt-get install xfsprogs
>=3B >=3B $ sudo apt-get install xfsdump
= >=3B >=3B
>=3B >=3B 2) I will have to create the filesystem for= the USB drive
>=3B >=3B $ mkfs.xfs -f dev/sdab1
>=3B >=3B -f= option needed to overwrite any existing filesytem
 =3B
>=3B An= d then mount it appropriately and it will be ready to use.
>=3B Nothin= g more.

About the part where you say mount it properly=2C I just wan= ted to check if this is correct.

1)Create a mount point.
 =3B=  =3B $ mkdir /mnt/dat1

2)Mount the drive.
 =3B =3B $= mount -t xfs /dev/sdc1 /mnt/dat1

And i will have to do this every t= ime I want to use the pendrive

Warm Regards=2C
Prithvi
=
= --_09d2918f-baef-4603-8baa-c49e0b391deb_-- From robin.listas@gmail.com Mon Aug 18 05:26:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5381B7F3F for ; Mon, 18 Aug 2014 05:26:07 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 417058F8037 for ; Mon, 18 Aug 2014 03:26:04 -0700 (PDT) X-ASG-Debug-ID: 1408357561-04cb6c54fd95ed0001-NocioJ Received: from mail-we0-f176.google.com (mail-we0-f176.google.com [74.125.82.176]) by cuda.sgi.com with ESMTP id ED2WNJceL0q6S8o5 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 18 Aug 2014 03:26:02 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.176 Received: by mail-we0-f176.google.com with SMTP id q58so4802747wes.21 for ; Mon, 18 Aug 2014 03:26:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type:content-id; bh=xnnHzhDTWTXq8mQibeD5uqxygFg2wXOrLOrwPpM/nOk=; b=d6cFGH6nOk5j+ZKs6czkG9/0JUnjz/RhduCxlqixk3j3Cu8xEvFy4f0ZnYw6Uzbo/8 UbUgJkAeneIbV5IEq6nEZ93+QhBomZIQYpRtjgsTx2sscw9AilNHVJh45IJKbSNc5m5N oKQhISTfAjFP7LRTr8vR/4Q3RTPcmchJZ/CNfbohQsBn6UHf9LDUiMrRy2Bcou1btrpj jgM9e0Lbn9c3NIqUOtLqGILluDs3JGj/yqKBDnH3sgwNXxdeg65QRAHlqxtKNZmgQoNi my0Ti9XUOrL2sIRTjMK92WlKHnUefqW7zjZsbfwdIV4DLzdl125RTX6kqSpn+JQyZQMx zjMA== X-Received: by 10.180.96.196 with SMTP id du4mr70756320wib.44.1408357560980; Mon, 18 Aug 2014 03:26:00 -0700 (PDT) Received: from Telcontar.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id di7sm41197518wjb.34.2014.08.18.03.25.59 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Aug 2014 03:26:00 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 2007160E5A for ; Mon, 18 Aug 2014 12:25:58 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 8jiCUQhFfb_7 for ; Mon, 18 Aug 2014 12:25:58 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id F2189605B8 for ; Mon, 18 Aug 2014 12:25:57 +0200 (CEST) Date: Mon, 18 Aug 2014 12:25:57 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@Telcontar.valinor To: XFS mailing list Subject: RE: [RFD]: Help in setting up XFS In-Reply-To: X-ASG-Orig-Subj: RE: [RFD]: Help in setting up XFS Message-ID: References: , <20140818070312.GM20518@dastard> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463808511-172924305-1408357446=:5417" Content-ID: X-Barracuda-Connect: mail-we0-f176.google.com[74.125.82.176] X-Barracuda-Start-Time: 1408357562 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8574 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463808511-172924305-1408357446=:5417 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT Content-ID: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Content-ID: On Monday, 2014-08-18 at 15:00 +0530, Prithvi Rathore wrote: > About the part where you say mount it properly, I just wanted to check if this is correct. > > 1)Create a mount point. >     $ mkdir /mnt/dat1 Just plug in the stick and click on the icon to mount it. No different than any other filesystem. If it doesn't work, just ask on the help forum or mail lists of your distribution. - -- Cheers, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlPx1LUACgkQtTMYHG2NR9Xm5wCgiOtmi49VqkGLNsvs7UsJzLN5 d4cAn04RTjfL3Di13AStVgR4+UJVvgV6 =paC3 -----END PGP SIGNATURE----- ---1463808511-172924305-1408357446=:5417-- From robin.listas@gmail.com Mon Aug 18 05:31:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B72C57F3F for ; Mon, 18 Aug 2014 05:31:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A22B08F8035 for ; Mon, 18 Aug 2014 03:31:23 -0700 (PDT) X-ASG-Debug-ID: 1408357881-04cb6c550096490001-NocioJ Received: from mail-we0-f175.google.com (mail-we0-f175.google.com [74.125.82.175]) by cuda.sgi.com with ESMTP id z8y1smWrnoAYkPmk (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 18 Aug 2014 03:31:22 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.175 Received: by mail-we0-f175.google.com with SMTP id t60so4789564wes.20 for ; Mon, 18 Aug 2014 03:31:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=dcAX/w3s+5ABx+iBwExGuAHm84xOn1cXpiGEpFEoRXU=; b=dfTVjep3hG8ut6+BfzcurCjoS5YkqHqR4cSEy8ITfa4EkUcVa7NxOPjgljFZ4f9d9z WWL1IQKveGjZi29A4rHPb9OtgYgJgqUpcpnhvKHFzYNDYcpEGUIAUFSayAxkuS0fF3M+ B27ErXRrbCjWw9LtfCijJNZ1OreeByIPh2VCkKSQYnrLbuDDniKEaEkRQr27pJGm6xqt 1Us6lgI5JB+yL6REvbMl/wrNZiUozTPo0hUGRxT86o3eTsL438S3yO2K1jC2W2NSzjrl eln5BRl8wvLmRluYOMDz2jxzkQyYlFeQzY36SN7ofGI1XM5BS/hX7QYhM0hXT4P+ursm gZfQ== X-Received: by 10.194.173.234 with SMTP id bn10mr41399458wjc.81.1408357881061; Mon, 18 Aug 2014 03:31:21 -0700 (PDT) Received: from Telcontar.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id a4sm36536700wie.21.2014.08.18.03.31.19 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Aug 2014 03:31:20 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 5844860E5A for ; Mon, 18 Aug 2014 12:31:18 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id PLIOvkKKjOsp for ; Mon, 18 Aug 2014 12:31:18 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 327E8605B8 for ; Mon, 18 Aug 2014 12:31:18 +0200 (CEST) Date: Mon, 18 Aug 2014 12:31:18 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@Telcontar.valinor To: XFS mailing list Subject: Re: Help setting up XFS In-Reply-To: X-ASG-Orig-Subj: Re: Help setting up XFS Message-ID: References: User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-1463808511-487602297-1408357878=:5417" X-Barracuda-Connect: mail-we0-f175.google.com[74.125.82.175] X-Barracuda-Start-Time: 1408357882 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8574 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463808511-487602297-1408357878=:5417 Content-Type: TEXT/PLAIN; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sunday, 2014-08-17 at 07:36 +0530, Prithvi Rathore wrote: > Hi, >     I am a student currently pursuing my under-graduation and would love to use XFS. I believe it has a lot to offer and I Iook forwarding to > testing and using it on an external device like a pen-drive (USB) for starters. >     I was a bit confused on how to set up XFS. I am currently using Ubuntu 14.04 dual boot (via rEFInd) with Mac OS X on MacBook Air 2013.  I don't know about Ubuntu. In openSUSE I just open the graphical tool to format any device and format it, just selecting in the drop list XFS or any other type I want. On other distributions I would use gparted. The procedure is exactly the same for any filesystem you choose. I rather think that what you need is help on using Linux, not XFS. - -- Cheers, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlPx1fYACgkQtTMYHG2NR9X0PQCeLq7Q5/uEOzxtiAhdY4QlZjb5 cHAAn0w7eXWilM+IVH852cLmg076zEYv =cMGX -----END PGP SIGNATURE----- ---1463808511-487602297-1408357878=:5417-- From david@fromorbit.com Mon Aug 18 08:12:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 4CA057F3F for ; Mon, 18 Aug 2014 08:12:08 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D0D13AC004 for ; Mon, 18 Aug 2014 06:12:07 -0700 (PDT) X-ASG-Debug-ID: 1408367522-04bdf010a03d5a0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id NgK1i6QkaLwG4aqE for ; Mon, 18 Aug 2014 06:12:02 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkQHAIb68VN5LDJ8/2dsb2JhbABZgw2BKoIsrSIBAQEBAQaefIV7AYEaF3eEAwEBBAE6HCMFCwgDEQMBAgEJJQ8FJQMTDhOILgMJB7tLGIUoFxiFZIlQB4RMBZxBjAeIfYNvKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 18 Aug 2014 22:42:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJMiy-0002Hc-6H; Mon, 18 Aug 2014 23:11:48 +1000 Date: Mon, 18 Aug 2014 23:11:48 +1000 From: Dave Chinner To: Prithvi Rathore Cc: "xfs@oss.sgi.com" Subject: Re: [RFD]: Help in setting up XFS Message-ID: <20140818131148.GN20518@dastard> X-ASG-Orig-Subj: Re: [RFD]: Help in setting up XFS References: <20140818070312.GM20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408367522 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8577 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 18, 2014 at 03:00:31PM +0530, Prithvi Rathore wrote: > Hi Dave, > I really appreciate you help in this matter. > > > Date: Mon, 18 Aug 2014 17:03:12 +1000 > > From: david@fromorbit.com > > To: prithvi_rathore@outlook.com > > CC: xfs@oss.sgi.com > > Subject: Re: [RFD]: Help in setting up XFS > > > > On Mon, Aug 18, 2014 at 10:22:37AM +0530, Prithvi Rathore wrote: > > > Hi, > > > As the subject states, I would like to setup and use XFS on an external USB drive. I am currently using Ubuntu 14.04 on MacBook Air 2013. > > > My understanding is: > > > > > > 1) I will have to install the packages > > > $ sudo apt-get install xfsprogs > > > $ sudo apt-get install xfsdump > > > > > > 2) I will have to create the filesystem for the USB drive > > > $ mkfs.xfs -f dev/sdab1 > > > -f option needed to overwrite any existing filesytem > > > And then mount it appropriately and it will be ready to use. > > Nothing more. > > About the part where you say mount it properly, I just wanted to check if this is correct. > > 1)Create a mount point. > $ mkdir /mnt/dat1 > > 2)Mount the drive. > $ mount -t xfs /dev/sdc1 /mnt/dat1 mount will work out that it contains XFS and do the right thing automatically. i.e. this should work just fine: $ mount /dev/sdc1 /mnt/dat1 Look in dmesg to see what happens at the kernel level when you run the command, and compare the difference with and without the "-t xfs".... > And i will have to do this every time I want to use the pendrive Only the mount command. the mount point won't go away unless you remove it. Cheers, Dave. -- Dave Chinner david@fromorbit.com From mlsemon35@gmail.com Mon Aug 18 08:12:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0C8737F3F for ; Mon, 18 Aug 2014 08:12:40 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id EDCF28F8035 for ; Mon, 18 Aug 2014 06:12:36 -0700 (PDT) X-ASG-Debug-ID: 1408367555-04cbb05486b2350001-NocioJ Received: from mail-yh0-f43.google.com (mail-yh0-f43.google.com [209.85.213.43]) by cuda.sgi.com with ESMTP id rjMLYjFRQhFIv5Q2 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 18 Aug 2014 06:12:35 -0700 (PDT) X-Barracuda-Envelope-From: mlsemon35@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.43 X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.43] Received: by mail-yh0-f43.google.com with SMTP id 29so4437748yhl.16 for ; Mon, 18 Aug 2014 06:12:34 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.43] X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.43] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=Eu60ctdRHsn1+K9pWaVLR7TjRTJSaaDTKkCctKaSCdY=; b=svLMibb5TcMt4t7VrlmSMkXIy9kHluJINcY4EQB/5f0aV+Mr+/BI+WCoTRz/W4TsOZ 8+GATKV+DC/xyKAP/DzmQxvldGvs4pv/vp1tZMPYIknwmdI/5mRxCPgemM4Tbx1l5Hw2 5czT76xTkHJq8lT47dkYdvlCITnGVPgITJrcSRHey4Ch+NnbRN+bf1QROF/Lc2OpVo6N 9vBAdmxqjISPjI6PGNeFSAf3GTc4YUnZ4EHp7j2zqD4tIEeTm9n+bQp+TApoVa3JtG6S Y0SYggAsDW0JinVwxngAMNqngspgTB1OqgcAVBIja+X0y/4+oqvRP9uvTjCCNHuTiY8Y AxOA== X-Received: by 10.236.111.34 with SMTP id v22mr10627772yhg.81.1408367554758; Mon, 18 Aug 2014 06:12:34 -0700 (PDT) Received: from yholen.semon.net (rrcs-97-76-23-49.se.biz.rr.com. [97.76.23.49]) by mx.google.com with ESMTPSA id v50sm35582233yhv.22.2014.08.18.06.12.33 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Aug 2014 06:12:34 -0700 (PDT) Message-ID: <53F1FBBC.8000903@gmail.com> Date: Mon, 18 Aug 2014 09:12:28 -0400 From: "Michael L. Semon" User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Dave Chinner CC: "xfs@oss.sgi.com" Subject: Re: xfsdump completes very prematurely in low RAM, commit found References: <53F15EEF.4090308@gmail.com> <20140818024114.GK20518@dastard> X-ASG-Orig-Subj: Re: xfsdump completes very prematurely in low RAM, commit found In-Reply-To: <20140818024114.GK20518@dastard> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail-yh0-f43.google.com[209.85.213.43] X-Barracuda-Start-Time: 1408367555 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8577 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On 08/17/14 22:41, Dave Chinner wrote: > On Sun, Aug 17, 2014 at 10:03:27PM -0400, Michael L. Semon wrote: >> Hi! I had some phantom issues that are chasing me through this 3.17 >> merge window period. While chasing those issues, I decided to do an >> xfsdump of a v5/finobt XFS system rescued from PEBKAC issues. The >> xfsdump completed rather prematurely, ending like this test case >> output... >> >> xfsdump: dumping special file ino 4194523 mode 0x21b0 >> xfsdump: dumping special file ino 4194524 mode 0x21b0 >> xfsdump: dumping special file ino 4194525 mode 0x21b0 >> xfsdump: dumping special file ino 4194526 mode 0x21b0 >> xfsdump: dumping special file ino 4194527 mode 0x21b0 >> xfsdump: ending media file >> xfsdump: media file size 4512992 bytes >> xfsdump: ending stream: 23 seconds elapsed >> xfsdump: dump size (non-dir files) : 4452088 bytes >> xfsdump: dump complete: 23 seconds elapsed >> xfsdump: Dump Summary: >> xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) >> xfsdump: Dump Status: SUCCESS >> >> That looks fine for a lack of obvious error messages. However, it >> should end like this: >> >> xfsdump: dumping regular file ino 13653551 offset 0 to offset 12154 (size 12154) >> xfsdump: dumping regular file ino 13653555 offset 0 to offset 16554 (size 16554) >> xfsdump: dumping regular file ino 13653556 offset 0 to offset 185 (size 185) >> xfsdump: dumping regular file ino 13653557 offset 0 to offset 471 (size 471) >> xfsdump: dumping special file ino 13653558 mode 0xa1ff >> xfsdump: ending media file >> xfsdump: media file size 1999127056 bytes >> xfsdump: ending stream: 465 seconds elapsed >> xfsdump: dump size (non-dir files) : 1963549104 bytes >> xfsdump: dump complete: 465 seconds elapsed >> xfsdump: Dump Summary: >> xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) >> xfsdump: Dump Status: SUCCESS > > What's the inode number progression of a successful dump at the > point at which the incomplete dump ends? i.e. around inode 4194527? > That number is one inode chunk short of 2^22, which implies that > there is a failure or some kind moving from one AG to the next. > The progrssion of inode numbers will tell me whether this is the > case or not... It is this, run a bit longer to show xfsdump start to dump regular files again: xfsdump: dumping special file ino 4194520 mode 0x21b0 xfsdump: dumping special file ino 4194521 mode 0x21b0 xfsdump: dumping special file ino 4194522 mode 0x21b0 xfsdump: dumping special file ino 4194523 mode 0x21b0 xfsdump: dumping special file ino 4194524 mode 0x21b0 xfsdump: dumping special file ino 4194525 mode 0x21b0 xfsdump: dumping special file ino 4194526 mode 0x21b0 xfsdump: dumping special file ino 4194527 mode 0x21b0 xfsdump: dumping special file ino 4194528 mode 0x21b0 xfsdump: dumping special file ino 4194529 mode 0x21b0 xfsdump: dumping special file ino 4194530 mode 0x21b0 xfsdump: dumping special file ino 4194531 mode 0x21b0 xfsdump: dumping special file ino 4194532 mode 0x21b0 xfsdump: dumping special file ino 4194533 mode 0x21b0 xfsdump: dumping special file ino 4194534 mode 0x21b0 xfsdump: dumping special file ino 4194535 mode 0x21b0 xfsdump: dumping special file ino 4194536 mode 0x21b0 xfsdump: dumping special file ino 4194537 mode 0x21b0 xfsdump: dumping special file ino 4194538 mode 0x21b0 xfsdump: dumping special file ino 4194539 mode 0x21b0 xfsdump: dumping special file ino 4194540 mode 0x21b0 xfsdump: dumping special file ino 4194541 mode 0x21b0 xfsdump: dumping special file ino 4194542 mode 0x21b0 xfsdump: dumping special file ino 4194543 mode 0x21b0 xfsdump: dumping special file ino 4194544 mode 0x21b0 xfsdump: dumping special file ino 4194545 mode 0x21b0 xfsdump: dumping special file ino 4194546 mode 0x21b0 xfsdump: dumping special file ino 4194547 mode 0x21b0 xfsdump: dumping special file ino 4194548 mode 0x21b0 xfsdump: dumping special file ino 4194549 mode 0x21b0 xfsdump: dumping special file ino 4194550 mode 0x21b0 xfsdump: dumping special file ino 4194551 mode 0x21b0 xfsdump: dumping special file ino 4194552 mode 0x21b0 xfsdump: dumping special file ino 4194553 mode 0x21b0 xfsdump: dumping special file ino 4194554 mode 0x21b0 xfsdump: dumping special file ino 4194555 mode 0x21b0 xfsdump: dumping special file ino 4194556 mode 0x21b0 xfsdump: dumping special file ino 4194557 mode 0x21b0 xfsdump: dumping special file ino 4194558 mode 0x21b0 xfsdump: dumping special file ino 4194559 mode 0x21b0 xfsdump: dumping special file ino 4194560 mode 0x21b0 xfsdump: dumping special file ino 4194561 mode 0x21b0 xfsdump: dumping special file ino 4194562 mode 0x21b0 xfsdump: dumping special file ino 4194563 mode 0x21b0 xfsdump: dumping special file ino 4194564 mode 0x21b0 xfsdump: dumping special file ino 4194565 mode 0x21b0 xfsdump: dumping special file ino 4194566 mode 0x21b0 xfsdump: dumping special file ino 4194567 mode 0x21b0 xfsdump: dumping special file ino 4194568 mode 0x21b0 xfsdump: dumping special file ino 4194569 mode 0x21b0 xfsdump: dumping special file ino 4194570 mode 0x21b0 xfsdump: dumping special file ino 4194571 mode 0x21b0 xfsdump: dumping special file ino 4194572 mode 0x21b0 xfsdump: dumping special file ino 4194573 mode 0x21b0 xfsdump: dumping special file ino 4194574 mode 0x21b0 xfsdump: dumping special file ino 4194575 mode 0x21b0 xfsdump: dumping special file ino 4194576 mode 0x21b0 xfsdump: dumping special file ino 4194577 mode 0x21b0 xfsdump: dumping special file ino 4194578 mode 0x21b0 xfsdump: dumping special file ino 4194579 mode 0x21b0 xfsdump: dumping special file ino 4194580 mode 0x21b0 xfsdump: dumping special file ino 4194581 mode 0x21b0 xfsdump: dumping special file ino 4194582 mode 0x21b0 xfsdump: dumping special file ino 4194583 mode 0x21b0 xfsdump: dumping special file ino 4194584 mode 0x21b0 xfsdump: dumping special file ino 4194585 mode 0x21b0 xfsdump: dumping special file ino 4194586 mode 0x21b0 xfsdump: dumping special file ino 4194587 mode 0x21b0 xfsdump: dumping special file ino 4194588 mode 0x21b0 xfsdump: dumping special file ino 4194589 mode 0x21b0 xfsdump: dumping special file ino 4194590 mode 0x21b0 xfsdump: dumping special file ino 4194591 mode 0x21b0 xfsdump: dumping special file ino 4194592 mode 0x21b0 xfsdump: dumping special file ino 4194593 mode 0x21b0 xfsdump: dumping special file ino 4194594 mode 0x21b0 xfsdump: dumping special file ino 4194595 mode 0x21b0 xfsdump: dumping special file ino 4194596 mode 0x21b0 xfsdump: dumping special file ino 4194597 mode 0x21b0 xfsdump: dumping special file ino 4194598 mode 0x21b0 xfsdump: dumping special file ino 4194599 mode 0x21b0 xfsdump: dumping special file ino 4194600 mode 0x21b0 xfsdump: dumping special file ino 4194601 mode 0x21b0 xfsdump: dumping special file ino 4194602 mode 0x21b0 xfsdump: dumping special file ino 4194603 mode 0x21b0 xfsdump: dumping special file ino 4194604 mode 0x21b0 xfsdump: dumping special file ino 4194605 mode 0x21b0 xfsdump: dumping special file ino 4194606 mode 0x21b0 xfsdump: dumping special file ino 4194607 mode 0x21b0 xfsdump: dumping special file ino 4194608 mode 0x21b0 xfsdump: dumping special file ino 4194609 mode 0x21b0 xfsdump: dumping special file ino 4194610 mode 0x21b0 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file ino 4194630 mode 0x21b0 xfsdump: dumping special file ino 4194631 mode 0x21b0 xfsdump: dumping special file ino 4194632 mode 0x21b0 xfsdump: dumping special file ino 4194633 mode 0x21b0 xfsdump: dumping special file ino 4194634 mode 0x21b0 xfsdump: dumping special file ino 4194635 mode 0x21b0 xfsdump: dumping special file ino 4194636 mode 0x21b0 xfsdump: dumping special file ino 4194637 mode 0x21b0 xfsdump: dumping special file ino 4194638 mode 0x21b0 xfsdump: dumping special file ino 4194639 mode 0x21b0 xfsdump: dumping special file ino 4194640 mode 0x21b0 xfsdump: dumping special file ino 4194641 mode 0x21b0 xfsdump: dumping special file ino 4194642 mode 0x21b0 xfsdump: dumping special file ino 4194643 mode 0x21b0 xfsdump: dumping special file ino 4194644 mode 0x21b0 xfsdump: dumping special file ino 4194645 mode 0x21b0 xfsdump: dumping special file ino 4194646 mode 0x21b0 xfsdump: dumping special file ino 4194647 mode 0x21b0 xfsdump: dumping special file ino 4194648 mode 0x21b0 xfsdump: dumping special file ino 4194649 mode 0x21b0 xfsdump: dumping special file ino 4194650 mode 0x21b0 xfsdump: dumping special file ino 4194651 mode 0x21b0 xfsdump: dumping special file ino 4194652 mode 0x21b0 xfsdump: dumping special file ino 4194653 mode 0x21b0 xfsdump: dumping special file ino 4194654 mode 0x21b0 xfsdump: dumping special file ino 4194655 mode 0x21b0 xfsdump: dumping special file ino 4194688 mode 0x21b0 xfsdump: dumping special file ino 4194689 mode 0x21b0 xfsdump: dumping special file ino 4194690 mode 0x21b0 xfsdump: dumping special file ino 4194691 mode 0x21b0 xfsdump: dumping special file ino 4194692 mode 0x21b0 xfsdump: dumping special file ino 4194693 mode 0x21b0 xfsdump: dumping special file ino 4194694 mode 0x21b0 xfsdump: dumping special file ino 4194695 mode 0x21b0 xfsdump: dumping special file ino 4194696 mode 0x21b0 xfsdump: dumping special file ino 4194697 mode 0x21b0 xfsdump: dumping special file ino 4194698 mode 0x21b0 xfsdump: dumping special file ino 4194699 mode 0x21b0 xfsdump: dumping special file ino 4194700 mode 0x21b0 xfsdump: dumping special file ino 4194701 mode 0x21b0 xfsdump: dumping special file ino 4194702 mode 0x21b0 xfsdump: dumping special file ino 4194703 mode 0x21b0 xfsdump: dumping special file ino 4194704 mode 0x21b0 xfsdump: dumping special file ino 4194705 mode 0x21b0 xfsdump: dumping special file ino 4194706 mode 0x21b0 xfsdump: dumping special file ino 4194707 mode 0x21b0 xfsdump: dumping special file ino 4194708 mode 0x21b0 xfsdump: dumping special file ino 4194709 mode 0x21b0 xfsdump: dumping special file ino 4194710 mode 0x21b0 xfsdump: dumping special file ino 4194711 mode 0x21b0 xfsdump: dumping special file ino 4194712 mode 0x21b0 xfsdump: dumping special file ino 4194713 mode 0x21b0 xfsdump: dumping special file ino 4194714 mode 0x21b0 xfsdump: dumping special file ino 4194715 mode 0x21b0 xfsdump: dumping special file ino 4194716 mode 0x21b0 xfsdump: dumping special file ino 4194717 mode 0x21b0 xfsdump: dumping regular file ino 4194719 offset 0 to offset 314 (size 314) xfsdump: dumping regular file ino 4194721 offset 0 to offset 851 (size 851) xfsdump: dumping regular file ino 4194722 offset 0 to offset 3716 (size 3716) xfsdump: dumping regular file ino 4194723 offset 0 to offset 1077 (size 1077) xfsdump: dumping regular file ino 4194724 offset 0 to offset 5568 (size 5568) xfsdump: dumping regular file ino 4194725 offset 0 to offset 770 (size 770) xfsdump: dumping regular file ino 4194726 offset 0 to offset 1100 (size 1100) xfsdump: dumping regular file ino 4194727 offset 0 to offset 1738 (size 1738) xfsdump: dumping regular file ino 4194728 offset 0 to offset 647 (size 647) xfsdump: dumping regular file ino 4194730 offset 0 to offset 940 (size 940) xfsdump: dumping regular file ino 4194731 offset 0 to offset 6747 (size 6747) xfsdump: dumping regular file ino 4194733 offset 0 to offset 226 (size 226) Thanks again! Michael From david@fromorbit.com Mon Aug 18 08:20:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E4F457F3F for ; Mon, 18 Aug 2014 08:20:41 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id B2F958F804B for ; Mon, 18 Aug 2014 06:20:41 -0700 (PDT) X-ASG-Debug-ID: 1408368039-04bdf010a13dca0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id ECkyLvqvbn4SNQu4 for ; Mon, 18 Aug 2014 06:20:39 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkMHANz88VN5LDJ8/2dsb2JhbABZgw2BKoIsrSIBAQEBAQaefIV7AYEaF3eEAwEBBAEyASMYCwULCAMYCSUPBSUDIROIOgfBDxcYhWSIfwEBTweETAWPEo0vjAeIfYFlHIFuKy+BD4FAAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 18 Aug 2014 22:50:39 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJMrK-0002JC-DE; Mon, 18 Aug 2014 23:20:26 +1000 Date: Mon, 18 Aug 2014 23:20:26 +1000 From: Dave Chinner To: "Carlos E. R." Cc: XFS mailing list Subject: Re: [RFD]: Help in setting up XFS Message-ID: <20140818132026.GO20518@dastard> X-ASG-Orig-Subj: Re: [RFD]: Help in setting up XFS References: <20140818070312.GM20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1408368039 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8578 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Mon, Aug 18, 2014 at 12:25:57PM +0200, Carlos E. R. wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Content-ID: > > > On Monday, 2014-08-18 at 15:00 +0530, Prithvi Rathore wrote: > > >About the part where you say mount it properly, I just wanted to check if this is correct. > > > >1)Create a mount point. > >    $ mkdir /mnt/dat1 > > Just plug in the stick and click on the icon to mount it. No > different than any other filesystem. That doesn't work for machines with no desktop or ones that you access via ssh. Learn the command line first then you can always get the machine to do what you want regardless of how you need to access it. Indeed, typing commands is often faster than using the mouse, especially if you know how to use command history search effectively... > If it doesn't work, just ask on the help forum or mail lists of your > distribution. That's just wrong. If you've got an XFS problem or question, then this mailing list is exactly the right place to be asking for help. Cheers, Dave. -- Dave Chinner david@fromorbit.com From bfoster@redhat.com Mon Aug 18 09:15:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7384B7F3F for ; Mon, 18 Aug 2014 09:15:42 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 44E518F8040 for ; Mon, 18 Aug 2014 07:15:39 -0700 (PDT) X-ASG-Debug-ID: 1408371337-04bdf0109740b60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id BbssFtF6byBtqJmq (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 07:15:38 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEFREn018833 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 18 Aug 2014 10:15:29 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEFRuw029515; Mon, 18 Aug 2014 10:15:27 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2502212577C; Mon, 18 Aug 2014 10:15:26 -0400 (EDT) Date: Mon, 18 Aug 2014 10:15:26 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference Message-ID: <20140818141525.GA30093@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-2-git-send-email-david@fromorbit.com> <20140815131804.GA4096@laptop.bfoster> <20140815231736.GT26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815231736.GT26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408371338 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Aug 16, 2014 at 09:17:36AM +1000, Dave Chinner wrote: > On Fri, Aug 15, 2014 at 09:18:04AM -0400, Brian Foster wrote: > > On Fri, Aug 15, 2014 at 04:38:59PM +1000, Dave Chinner wrote: > .... > > > if (bp->b_flags & XBF_WRITE) > > > xfs_buf_wait_unpin(bp); > > > + > > > + /* > > > + * Take references to the buffer. For XBF_ASYNC buffers, holding a > > > + * reference for as long as submission takes is all that is necessary > > > + * here. The IO inherits the lock and hold count from the submitter, > > > + * and these are release during IO completion processing. Taking a hold > > > + * over submission ensures that the buffer is not freed until we have > > > + * completed all processing, regardless of when IO errors occur or are > > > + * reported. > > > + * > > > + * However, for synchronous IO, the IO does not inherit the submitters > > > + * reference count, nor the buffer lock. Hence we need to take an extra > > > + * reference to the buffer for the for the IO context so that we can > > > + * guarantee the buffer is not freed until all IO completion processing > > > + * is done. Otherwise the caller can drop their reference while the IO > > > + * is still in progress and hence trigger a use-after-free situation. > > > + */ > > > xfs_buf_hold(bp); > > > + if (!(bp->b_flags & XBF_ASYNC)) > > > + xfs_buf_hold(bp); > > > + > > > > > > /* > > > - * Set the count to 1 initially, this will stop an I/O > > > - * completion callout which happens before we have started > > > - * all the I/O from calling xfs_buf_ioend too early. > > > + * Set the count to 1 initially, this will stop an I/O completion > > > + * callout which happens before we have started all the I/O from calling > > > + * xfs_buf_ioend too early. > > > */ > > > atomic_set(&bp->b_io_remaining, 1); > > > _xfs_buf_ioapply(bp); > > > + > > > /* > > > - * If _xfs_buf_ioapply failed, we'll get back here with > > > - * only the reference we took above. _xfs_buf_ioend will > > > - * drop it to zero, so we'd better not queue it for later, > > > - * or we'll free it before it's done. > > > + * If _xfs_buf_ioapply failed or we are doing synchronous IO that > > > + * completes extremely quickly, we can get back here with only the IO > > > + * reference we took above. _xfs_buf_ioend will drop it to zero, so > > > + * we'd better run completion processing synchronously so that the we > > > + * don't return to the caller with completion still pending. In the > > > + * error case, this allows the caller to check b_error safely without > > > + * waiting, and in the synchronous IO case it avoids unnecessary context > > > + * switches an latency for high-peformance devices. > > > */ > > > > AFAICT there is no real wait if the buf has completed at this point. The > > wait just decrements the completion counter. > > If the IO has completed, then we run the completion code. > > > So what's the benefit of > > "not waiting?" Where is the potential context switch? > > async work for completion processing on synchrnous IO means we queue > the work, then sleep in xfs_buf_iowait(). Two context switches, plus > a work queue execution > Right... > > Are you referring > > to the case where error is set but I/O is not complete? Are you saying > > the advantage to the caller is it doesn't have to care about the state > > of further I/O once it has been determined at least one error has > > occurred? (If so, who cares about latency given that some operation that > > depends on this I/O is already doomed to fail?). > > No, you're reading *way* too much into this. For sync IO, it's > always best to process completion inline. For async, it doesn't > matter, but if there's a submission error is *more effecient* to > process it in the current context. > Heh. Sure, that makes sense. Perhaps it's just the way I read it, implying that how we process I/O completion effects what the calling code should look like. Simple case of the comment being a bit more confusing than the code. ;) FWIW, the following is more clear to me: /* * If _xfs_buf_ioapply failed or we are doing synchronous IO that * completes extremely quickly, we can get back here with only the IO * reference we took above. _xfs_buf_ioend will drop it to zero. Run * completion processing synchronously so that we don't return to the * caller with completion still pending. This avoids unnecessary context * switches associated with the end_io workqueue. */ Thanks for the explanation. Brian > > The code looks fine, but I'm trying to understand the reasoning better > > (and I suspect we can clarify the comment). > > > > > - _xfs_buf_ioend(bp, bp->b_error ? 0 : 1); > > > + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > > + _xfs_buf_ioend(bp, 0); > > > + else > > > + _xfs_buf_ioend(bp, 1); > > > > Not related to this patch, but it seems like the problem this code tries > > to address is still possible. > > The race condition is still possible - it just won't result in a > use-after-free. The race condition is not fixed until patch 8, > but as a backportable fix, this patch is much, much simpler. > > > Perhaps this papers over a particular > > instance. Consider the case where an I/O fails immediately after this > > call completes, but not before. We have an extra reference now for > > completion, but we can still return to the caller with completion > > pending. I suppose its fine if we consider the "problem" to be that the > > reference goes away underneath the completion, as opposed to the caller > > caring about the status of completion. > > Precisely. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Aug 18 09:16:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A00247F3F for ; Mon, 18 Aug 2014 09:16:04 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8E75E304066 for ; Mon, 18 Aug 2014 07:16:01 -0700 (PDT) X-ASG-Debug-ID: 1408371359-04cbb05487b5110001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id HPNsAWT1ZBwcqsuc (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 07:16:00 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEFuvT029654 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 18 Aug 2014 10:15:57 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEFtsD029716; Mon, 18 Aug 2014 10:15:55 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 935D912577C; Mon, 18 Aug 2014 10:15:54 -0400 (EDT) Date: Mon, 18 Aug 2014 10:15:54 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-ID: <20140818141553.GB30093@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-3-git-send-email-david@fromorbit.com> <20140815131820.GB4096@laptop.bfoster> <20140815232135.GU26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815232135.GU26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408371360 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Aug 16, 2014 at 09:21:35AM +1000, Dave Chinner wrote: > On Fri, Aug 15, 2014 at 09:18:21AM -0400, Brian Foster wrote: > > On Fri, Aug 15, 2014 at 04:39:00PM +1000, Dave Chinner wrote: > > > From: Dave Chinner > > > > > > We do some work in xfs_buf_ioend, and some work in > > > xfs_buf_iodone_work, but much of that functionality is the same. > > > This work can all be done in a single function, leaving > > > xfs_buf_iodone just a wrapper to determine if we should execute it > > > by workqueue or directly. hence rename xfs_buf_iodone_work to > > > xfs_buf_ioend(), and add a new xfs_buf_ioend_async() for places that > > > need async processing. > > > > > > Signed-off-by: Dave Chinner > > > --- > > > fs/xfs/xfs_buf.c | 79 +++++++++++++++++++++--------------------------- > > > fs/xfs/xfs_buf.h | 2 +- > > > fs/xfs/xfs_buf_item.c | 4 +-- > > > fs/xfs/xfs_inode.c | 2 +- > > > fs/xfs/xfs_log.c | 2 +- > > > fs/xfs/xfs_log_recover.c | 2 +- > > > 6 files changed, 40 insertions(+), 51 deletions(-) > > > > > > diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c > > > index 5d86bbd..1b7f0bc 100644 > > > --- a/fs/xfs/xfs_buf.c > > > +++ b/fs/xfs/xfs_buf.c > > > @@ -999,54 +999,49 @@ xfs_buf_wait_unpin( > > > */ > > > > > > STATIC void > > > -xfs_buf_iodone_work( > > > - struct work_struct *work) > > > +xfs_buf_ioend( > > > + struct xfs_buf *bp) > > > > Compile failure here due to STATIC. > > > > > { > > > - struct xfs_buf *bp = > > > - container_of(work, xfs_buf_t, b_iodone_work); > > > - bool read = !!(bp->b_flags & XBF_READ); > > > + bool read = !!(bp->b_flags & XBF_READ); > > > + > > > + trace_xfs_buf_iodone(bp, _RET_IP_); > > > > > > bp->b_flags &= ~(XBF_READ | XBF_WRITE | XBF_READ_AHEAD); > > > > > > - /* only validate buffers that were read without errors */ > > > - if (read && bp->b_ops && !bp->b_error && (bp->b_flags & XBF_DONE)) > > > - bp->b_ops->verify_read(bp); > > > + if (!bp->b_error) { > > > + bp->b_flags |= XBF_DONE; > > > + > > > + /* only validate buffers that were read without errors */ > > > + if (read && bp->b_ops) > > > + bp->b_ops->verify_read(bp); > > > + } > > > > Probably not a cause of errors, but this code is now executed twice for > > I/O with b_iodone callbacks. > > reads don't have b_iodone callbacks. > Ah, Ok. > > Once for the initial call from bio_end_io, > > again from the callback via the b_iodone handler. The flags bits are > > probably fine, but we don't want to be running the verifiers multiple > > times unnecessarily. > > Which we don't ;) > Good point, but that's still a landmine IMO. It looks like the previous code would avoid it for sync I/O, but not for async. You could probably avoid it generally via a new flag or just by going off of XBF_DONE. The latter seems logical to me. A comment wouldn't hurt either. > > > @@ -1425,10 +1412,12 @@ xfs_buf_iorequest( > > > * waiting, and in the synchronous IO case it avoids unnecessary context > > > * switches an latency for high-peformance devices. > > > */ > > > - if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > > - _xfs_buf_ioend(bp, 0); > > > - else > > > - _xfs_buf_ioend(bp, 1); > > > + if (atomic_dec_and_test(&bp->b_io_remaining) == 1) { > > > + if (bp->b_error || !(bp->b_flags & XBF_ASYNC)) > > > + xfs_buf_ioend(bp); > > > + else > > > + xfs_buf_ioend_async(bp); > > > + } > > > > This looks cleaner, but the comment is out of whack at this point. > > The code is functionally identical, so the comment didn't get > changed. As it is, the behaviour that exists in this patch goes away > in later patches, so it's mostly irrelevant that a comment is > absoultely correct in an intermediate point within the patch set. > This was just a minor point that the comment refers to _xfs_buf_ioend(). That obviously no longer exists but the comment is still around at the end of the series. Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Aug 18 09:16:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 394777F57 for ; Mon, 18 Aug 2014 09:16:15 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id EF806304066 for ; Mon, 18 Aug 2014 07:16:14 -0700 (PDT) X-ASG-Debug-ID: 1408371373-04bdf010a140bd0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 4AAZUkOU2yQ0uvBy (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 07:16:13 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEGAeo029730 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 18 Aug 2014 10:16:11 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEGAKp029801; Mon, 18 Aug 2014 10:16:10 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 48AA112577C; Mon, 18 Aug 2014 10:16:09 -0400 (EDT) Date: Mon, 18 Aug 2014 10:16:09 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140818141608.GC30093@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> <20140815143558.GE4096@laptop.bfoster> <20140815233935.GY26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815233935.GY26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408371373 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Aug 16, 2014 at 09:39:35AM +1000, Dave Chinner wrote: > On Fri, Aug 15, 2014 at 10:35:58AM -0400, Brian Foster wrote: > > On Fri, Aug 15, 2014 at 04:39:06PM +1000, Dave Chinner wrote: > > > From: Dave Chinner > > > > > > There is a lot of cookie-cutter code that looks like: > > > > > > if (shutdown) > > > handle buffer error > > > xfs_buf_iorequest(bp) > > > error = xfs_buf_iowait(bp) > > > if (error) > > > handle buffer error > > > > > > spread through XFS. There's significant complexity now in > > > xfs_buf_iorequest() to specifically handle this sort of synchronous > > > IO pattern, but there's all sorts of nasty surprises in different > > > error handling code dependent on who owns the buffer references and > > > the locks. > > > > > > Pull this pattern into a single helper, where we can hide all the > > > synchronous IO warts and hence make the error handling for all the > > > callers much saner. This removes the need for a special extra > > > reference to protect IO completion processing, as we can now hold a > > > single reference across dispatch and waiting, simplifying the sync > > > IO smeantics and error handling. > > > > > > In doing this, also rename xfs_buf_iorequest to xfs_buf_submit and > > > make it explicitly handle on asynchronous IO. This forces all users > > > to be switched specifically to one interface or the other and > > > removes any ambiguity between how the interfaces are to be used. It > > > also means that xfs_buf_iowait() goes away. > > > > > > For the special case of delwri buffer submission and waiting, we > > > don't need to issue IO synchronously at all. The second pass to cal > > > xfs_buf_iowait() can now just block on xfs_buf_lock() - the buffer > > > will be unlocked when the async IO is complete. This formalises a > > > sane the method of waiting for async IO - take an extra reference, > > > submit the IO, call xfs_buf_lock() when you want to wait for IO > > > completion. i.e.: > > > > > > bp = xfs_buf_find(); > > > xfs_buf_hold(bp); > > > bp->b_flags |= XBF_ASYNC; > > > xfs_buf_iosubmit(bp); > > > xfs_buf_lock(bp) > > > error = bp->b_error; > > > .... > > > xfs_buf_relse(bp); > > > > > > Signed-off-by: Dave Chinner > > > --- > > > > On a quick look at submit_wait this looks pretty good. It actually > > implements the general model I've been looking for for sync I/O. E.g., > > send the I/O, wait on synchronization, then check for errors. In other > > words, a pure synchronous mechanism. The refactoring and new helpers and > > whatnot are additional bonus and abstract it nicely. > > > > I still have to take a closer look to review the actual code, but since > > we go and remove the additional sync I/O reference counting business, > > why do we even add that stuff early on? Can't we get from where the > > current code is to here in a more direct manner? > > Simply because we need a fix that we can backport, and that fix is a > simple addition that does not significantly affect the rest of the > patchset... > Ok, it wasn't clear that multiple fixes was the intent. I guess it's unforunate this won't see much tot testing, but we can find other ways to make sure it's tested. ;) Brian > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Mon Aug 18 09:26:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 50CCB7F3F for ; Mon, 18 Aug 2014 09:26:55 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C6733AC003 for ; Mon, 18 Aug 2014 07:26:51 -0700 (PDT) X-ASG-Debug-ID: 1408372008-04cbb05488b5dc0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jgJulr0AmfXNmKB5 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 07:26:50 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEQkK1002213 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 18 Aug 2014 10:26:46 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7IEQk4u006837; Mon, 18 Aug 2014 10:26:46 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3F57712577C; Mon, 18 Aug 2014 10:26:45 -0400 (EDT) Date: Mon, 18 Aug 2014 10:26:45 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] Message-ID: <20140818142644.GD30093@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 8/9] xfs: introduce xfs_buf_submit[_wait] References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-9-git-send-email-david@fromorbit.com> <20140815161319.GF4096@laptop.bfoster> <20140815235804.GZ26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815235804.GZ26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408372010 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, Aug 16, 2014 at 09:58:04AM +1000, Dave Chinner wrote: > On Fri, Aug 15, 2014 at 12:13:20PM -0400, Brian Foster wrote: > > On Fri, Aug 15, 2014 at 04:39:06PM +1000, Dave Chinner wrote: > > > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > > > + xfs_buf_ioerror(bp, -EIO); > > > + bp->b_flags &= ~XBF_DONE; > > > + xfs_buf_stale(bp); > > > + xfs_buf_ioend(bp); > > > + return; > > > + } > > > > > > if (bp->b_flags & XBF_WRITE) > > > xfs_buf_wait_unpin(bp); > > > @@ -1311,25 +1307,10 @@ xfs_buf_iorequest( > > > bp->b_io_error = 0; > > > > > > > I know this is from the previous patch, but I wonder if it's cleaner to > > reset b_io_error when the error is transferred to b_error. That seems > > slightly more future proof at least. > > I much prefer zeroing just before the variable is needed to be zero, > simply to indicate the context in which we care that the value is > correct. Outside of actively submitted IO, the value of b_io_error > is irrelevant, so it's value really doesn't matter. The other > advantage of leaving it untocuhed is for debug purposes - the caller > might clear b_error, but we still know what the state of the last IO > that was completed in the buffer was... > Sounds good, I don't really have a strong preference. > > > > > /* > > > - * Take references to the buffer. For XBF_ASYNC buffers, holding a > > > - * reference for as long as submission takes is all that is necessary > > > - * here. The IO inherits the lock and hold count from the submitter, > > > - * and these are release during IO completion processing. Taking a hold > > > - * over submission ensures that the buffer is not freed until we have > > > - * completed all processing, regardless of when IO errors occur or are > > > - * reported. > > > - * > > > - * However, for synchronous IO, the IO does not inherit the submitters > > > - * reference count, nor the buffer lock. Hence we need to take an extra > > > - * reference to the buffer for the for the IO context so that we can > > > - * guarantee the buffer is not freed until all IO completion processing > > > - * is done. Otherwise the caller can drop their reference while the IO > > > - * is still in progress and hence trigger a use-after-free situation. > > > + * Take an extra reference so that we don't have to guess when it's no > > > + * longer safe to reference the buffer that was passed to us. > > > */ > > > > Assuming my understanding is correct: > > > > /* > > * The caller's reference is released by buffer I/O completion. Technically > > * this should not occur until we release the last b_io_remaining reference. > > That's not quite right. The caller's reference is released some time > *after* b_io_remaining goes to zero. That's the reason we need to > hold a reference - after we drop our b_io_remaining count, we have > to have some other method of ensuring the buffer doesn't go away > until we have finished with the buffer. > Right, that's what I meant by the fact that we have to release the last b_io_remaining ref one way or another first... > I'll rewrite the comment. > Ok, the rest of the comment I wrote isn't really clear when I re-read it back either. > > > +xfs_buf_submit_wait( > > > + struct xfs_buf *bp) > > > { > > > - trace_xfs_buf_iowait(bp, _RET_IP_); > > > + int error; > > > + > > > + trace_xfs_buf_iorequest(bp, _RET_IP_); > > > > > > - if (!bp->b_error) > > > - wait_for_completion(&bp->b_iowait); > > > + ASSERT(!(bp->b_flags & (_XBF_DELWRI_Q | XBF_ASYNC))); > > > + > > > + if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) { > > > + xfs_buf_ioerror(bp, -EIO); > > > + xfs_buf_stale(bp); > > > + bp->b_flags &= ~XBF_DONE; > > > + return -EIO; > > > + } > > > > > > + if (bp->b_flags & XBF_WRITE) > > > + xfs_buf_wait_unpin(bp); > > > + > > > + /* clear the internal error state to avoid spurious errors */ > > > + bp->b_io_error = 0; > > > + > > > + /* > > > + * For synchronous IO, the IO does not inherit the submitters reference > > > + * count, nor the buffer lock. Hence we cannot release the reference we > > > + * are about to take until we've waited for all IO completion to occur, > > > + * including any xfs_buf_ioend_async() work that may be pending. > > > + */ > > > + xfs_buf_hold(bp); > > > + > > > > Harmless, but why is this necessary? The caller should have the > > reference, the I/O completion won't release it and we wait on b_iowait > > before we return. Isn't the caller's reference sufficient? > > Consistency - I'd prefer that all IO has the same reference counting > behaviour. i.e. that the IO holds it's own reference to ensure, > regardless of anything else that happens, that the buffer has a > valid reference count the entire time the IO subsystem processing > the buffer. > Sounds good. > > > @@ -1838,7 +1853,10 @@ xfs_buf_delwri_submit( > > > bp = list_first_entry(&io_list, struct xfs_buf, b_list); > > > > > > list_del_init(&bp->b_list); > > > - error2 = xfs_buf_iowait(bp); > > > + > > > + /* locking the buffer will wait for async IO completion. */ > > > + xfs_buf_lock(bp); > > > + error2 = bp->b_error; > > > > Interesting delwri cleanup overall. The lock here works for > > synchronization (blocking), but it doesn't look safe for error > > processing. Once the buffer lock is dropped, who says b_error is from > > our write (and not a subsequent, for example) and thus this caller's > > responsibility to handle the error? I suspect this is a reason the lock > > is typically held across a sync I/O, so the error is valid after the > > I/O. > > It's fine because there is only a limited set of blocking callers, > all of which are special cases. The only callers that use this > blocking xfs_buf_delwri_submit() interface are: > > 1. log recovery: running single threaded, so isn't going > to be racing with anything else that can modify the error > > 2. quotacheck: also running single threaded > > 3. quota shrinker, which has nowhere to report an error to, > so the error status simply doesn't matter. > Sure, to be honest I wasn't really expecting there to be a scenario where this is currently possible. I figured the log recovery context was obviously not a concern because that occurs on mount. I hadn't gone to look at the other contexts where we use delwri. quotacheck makes sense for the same reason. We also use delwri for AIL pushing, but not the synchronous version. My comment was more from the perspective of this code will be around for a long time and this little characteristic of the mechanism is not at all explicit or obvious. So it won't ever be a problem until somebody uses sync delwri in a context where racing is possible. Then it won't ever reproduce until some user drives said mechanism and hits an error in just the right manner to lead to some undefined error recovery behavior. Maybe that doesn't happen for 20 years, but whenever it does, it's guaranteed to not be fun to debug. ;) So my point is not to suggest there's a race somewhere. It's just that the mechanism is racy and I'd prefer we eliminate the possibility of having to debug the flaw that this leaves behind. :) Another way to look at it is that we can't ever use this delwri mechanism from anywhere but such special, isolated contexts going forward. If we ever find that we want to, that punts the problem to a prereq for whatever work that happens to be. It's not clear to me if there's a way to deal with that without fundamentally changing this mechanism. Anything explicit probably just adds ugliness that's dedicated specifically to the fact that this is racy (e.g., delwri specific lock/counter), so I don't think we want to go there. It seems like the more general problem is that we have two I/O models (sync and async) that are fundamentally incompatible, but here we try to build a batch sync I/O mechanism on top of the async submission mechanism. So the definition of the async model is no longer sufficient for our use, since we clearly have a use case to wait on an async I/O. Perhaps we should think more about making the async/sync mechanisms more generic/compatible..? Thinking out loud, making the lock context dynamically transferrable to the I/O might be an interesting experiment to start to decouple things (much like we do for joining items to transactions, for example). FWIW, I'm Ok with deferring that or adding it to my own todo list based on the fact that there are currently no racing contexts, so long as the async is a subset of sync I/O model is generally acceptable. > > Also, it looks like blocking on async I/O as such opens up the > > possibility of blocking indefinitely on failing writes if the right > > combination of delwri and b_iodone handler is used (see > > xfs_buf_iodone_callbacks()). I'm not sure if that's a real problem > > today, though. > > I don't think it is - we don't permanently rewrite metadata writes > from IO completion anymore. We retry once, but then require higher > layers to restart the IO again (e.g. the xfsaild). Hence we can't > get stuck forever on async write errors. > Ok, we have the XBF_WRITE_FAIL thing now. Forgot about that. Brian > > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > > > index 4ba19bf..1e14452 100644 > > > --- a/fs/xfs/xfs_log_recover.c > > > +++ b/fs/xfs/xfs_log_recover.c > > > @@ -193,12 +193,8 @@ xlog_bread_noalign( > > > bp->b_io_length = nbblks; > > > bp->b_error = 0; > > > > > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) > > > - return -EIO; > > > - > > > - xfs_buf_iorequest(bp); > > > - error = xfs_buf_iowait(bp); > > > - if (error) > > > + error = xfs_buf_submit_wait(bp); > > > + if (error && !XFS_FORCED_SHUTDOWN(log->l_mp)) > > > xfs_buf_ioerror_alert(bp, __func__); > > > return error; > > > } > > > @@ -4427,16 +4423,12 @@ xlog_do_recover( > > > XFS_BUF_UNASYNC(bp); > > > bp->b_ops = &xfs_sb_buf_ops; > > > > > > - if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > > > - xfs_buf_relse(bp); > > > - return -EIO; > > > - } > > > - > > > - xfs_buf_iorequest(bp); > > > - error = xfs_buf_iowait(bp); > > > + error = xfs_buf_submit_wait(bp); > > > if (error) { > > > - xfs_buf_ioerror_alert(bp, __func__); > > > - ASSERT(0); > > > + if (XFS_FORCED_SHUTDOWN(log->l_mp)) { > > > > Should this be !XFS_FORCED_SHUTDOWN()? > > Right, good catch, especially after reading all that code ;) > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From robin.listas@gmail.com Mon Aug 18 09:47:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2F55B7F3F for ; Mon, 18 Aug 2014 09:47:59 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 078EB30406A for ; Mon, 18 Aug 2014 07:47:58 -0700 (PDT) X-ASG-Debug-ID: 1408373276-04cbb05487b87b0001-NocioJ Received: from mail-wg0-f45.google.com (mail-wg0-f45.google.com [74.125.82.45]) by cuda.sgi.com with ESMTP id XSiKRyR2i0ZWGb3g (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 18 Aug 2014 07:47:57 -0700 (PDT) X-Barracuda-Envelope-From: robin.listas@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.45 Received: by mail-wg0-f45.google.com with SMTP id x12so5171097wgg.16 for ; Mon, 18 Aug 2014 07:47:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:subject:in-reply-to:message-id:references :user-agent:mime-version:content-type; bh=AXVANuA1LKXniqiNLyLibD4nSJP+dhLpDdqgg5e8c4I=; b=Txcp4BBrEU1M7AAzd1rjYxkZM6caCa0nHqzsHVDGLdE8KwnNic3AOq552Ta0qvvb3G cBBrX1Rh6KGCU0IqJgcBY9MqhEf30eRLluZKpK4y28aoEjfwjGrj/4XzCT33syFCHSvu glJnFkV1RhrnIVhYU0Tab/UWCy4XljdoZGwKPWlqHCQIWakPbSdxO21P3Zm1iBRmS7Bm +JpqFrgxESXD3esKaCmeET2Nh2qtOHbztJkbUmctdanLUlwC4b+/QqBeoBGOt4Y9XjeO ukYo1eaJXfw2iXS3Iqmd83Q13cJwQ6CGJRCt2EFZu+31zCMgbqwIoQH7OSxQ3r8BKQbc lfbQ== X-Received: by 10.180.91.70 with SMTP id cc6mr239220wib.66.1408373275310; Mon, 18 Aug 2014 07:47:55 -0700 (PDT) Received: from Telcontar.valinor (177.Red-79-159-63.staticIP.rima-tde.net. [79.159.63.177]) by mx.google.com with ESMTPSA id gi5sm42792943wjd.33.2014.08.18.07.47.54 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 18 Aug 2014 07:47:54 -0700 (PDT) Sender: Carlos Robinson Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 9FDBE60E5A for ; Mon, 18 Aug 2014 16:47:52 +0200 (CEST) X-Virus-Scanned: amavisd-new at valinor Received: from Telcontar.valinor ([127.0.0.1]) by localhost (Telcontar.valinor [127.0.0.1]) (amavisd-new, port 10024) with LMTP id ytwcbcCkRugQ for ; Mon, 18 Aug 2014 16:47:52 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by Telcontar.valinor (Postfix) with ESMTP id 792E060726 for ; Mon, 18 Aug 2014 16:47:52 +0200 (CEST) Date: Mon, 18 Aug 2014 16:47:36 +0200 (CEST) From: "Carlos E. R." X-X-Sender: cer@Telcontar.valinor To: XFS mailing list Subject: Re: [RFD]: Help in setting up XFS In-Reply-To: <20140818132026.GO20518@dastard> X-ASG-Orig-Subj: Re: [RFD]: Help in setting up XFS Message-ID: References: <20140818070312.GM20518@dastard> <20140818132026.GO20518@dastard> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII X-Barracuda-Connect: mail-wg0-f45.google.com[74.125.82.45] X-Barracuda-Start-Time: 1408373277 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8579 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Monday, 2014-08-18 at 23:20 +1000, Dave Chinner wrote: > On Mon, Aug 18, 2014 at 12:25:57PM +0200, Carlos E. R. wrote: >> Just plug in the stick and click on the icon to mount it. No >> different than any other filesystem. > > That doesn't work for machines with no desktop or ones that you > access via ssh. Learn the command line first then you can always get > the machine to do what you want regardless of how you need to access > it. Indeed, typing commands is often faster than using the mouse, > especially if you know how to use command history search > effectively... I use the CLI method myself, but I don't see the point on novices using it when there are modern methods far easier :-) Me, I would make sure the filesystem gets a label, and probably create an entry in fstab using that label, with the "user" option so that plain users can mount it. Then we have to add a directory as root owned by that user inside the stick so that he can write. Anyway, the procedure is the same for any Linux filesystem (but not for NTFS or FAT), not specific to XFS. >> If it doesn't work, just ask on the help forum or mail lists of your >> distribution. > > That's just wrong. If you've got an XFS problem or question, then > this mailing list is exactly the right place to be asking for help. IMHO no, because, for instance, the method for installation differs in each distribution, and their help forums should be more suited for such a basic guidance. Anyway, mounting or creating an XFS stick is the same as for ext4, btrfs, fat, reiserfs... I do a lot of that guidance, have been doing it for well over a decade ;-) And each distribution has specifics. On ubuntu you probably need to do "sudo mount ...", a plain mount should fail. So if the generalized help an upstream mail list can provide, the best place to ask for help is the specific help forum of that distribution, as they will probably know best the easiest way to install and use the tools they provide. But that's just my opinion :-) - -- Cheers, Carlos E. R. (from openSUSE 13.1 x86_64 "Bottle" at Telcontar) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iEYEARECAAYFAlPyEhgACgkQtTMYHG2NR9W1HgCdFiMBjJc6sCCdPAKNL6mm43rR kQQAn0YjyEe0mkyNvlz08KkokepB8g1M =sSfH -----END PGP SIGNATURE----- From bounce@client21.emailnull.in Mon Aug 18 10:57:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: **** X-Spam-Status: No, score=4.9 required=5.0 tests=DATE_IN_PAST_06_12, HTML_MESSAGE,MPART_ALT_DIFF,NORMAL_HTTP_TO_IP,PLING_QUERY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7829E7F3F for ; Mon, 18 Aug 2014 10:57:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3A8D58F8039 for ; Mon, 18 Aug 2014 08:56:59 -0700 (PDT) X-ASG-Debug-ID: 1408377414-04bdf010a04e300001-NocioJ Received: from server21.emailnull.in (client21.emailnull.in [23.239.14.57]) by cuda.sgi.com with ESMTP id wZ1jWBzndfWZORHK (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 08:56:54 -0700 (PDT) X-Barracuda-Envelope-From: bounce@client21.emailnull.in X-Barracuda-Apparent-Source-IP: 23.239.14.57 Received: from client21e by server21.emailnull.in with local (Exim 4.82) (envelope-from ) id 1XJPIj-0003Xn-Sq for xfs@oss.sgi.com; Mon, 18 Aug 2014 15:56:53 +0000 To: xfs@oss.sgi.com Subject: Not planned holidays yet? 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Click here to unsubscribe --b1_0bba33b2e5f371dcafd1bcfd8a8d2271-- From stan@hardwarefreak.com Mon Aug 18 11:16:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 13C947F4E for ; Mon, 18 Aug 2014 11:16:17 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0218530407A for ; Mon, 18 Aug 2014 09:16:13 -0700 (PDT) X-ASG-Debug-ID: 1408378572-04cb6c5500b0e70001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id AIlvCpIUwNXAvASf for ; Mon, 18 Aug 2014 09:16:13 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id A9F666C190; Mon, 18 Aug 2014 11:16:12 -0500 (CDT) To: Dave Chinner Subject: Re: inode64 directory placement determinism X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: inode64 directory placement determinism MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Mon, 18 Aug 2014 11:16:12 -0500 From: Stan Hoeppner Cc: In-Reply-To: <20140818070153.GL20518@dastard> References: <20140818070153.GL20518@dastard> Message-ID: X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1408378572 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, 18 Aug 2014 17:01:53 +1000, Dave Chinner wrote: > On Sun, Aug 17, 2014 at 10:29:21PM -0500, Stan Hoeppner wrote: >> Say I have a single 4TB disk in an md linear device. The md device has a >> filesystem on it formatted with defaults. It has 4 AGs, 0-3. I have >> created 4 directories. Each should reside in a different AG, the first >> in >> AG0. Now I expand the linear device with an identical 4TB disk and >> execute >> xfs_growfs. I now have 4 more AGs, 4-7. I create 4 more directories. >> >> Will these 4 new dirs be created sequentially in AGs 4-7, or in the first >> 4 AGs? Is this deterministic, or is there any chance involved? On the > > Deterministic, assuming single threaded *file-system-wide* directory > creation. Completely unpredictable under concurrent directory > creations. See xfs_ialloc_ag_select/xfs_ialloc_next_ag. > > Note that the rotor used to select the next AG is set to > zero at mount. > > i.e. single threaded behaviour at agcount = 4: > > dir number rotor value destination AG > 1 0 0 > 2 1 1 > 3 2 2 > 4 3 3 > 5 0 0 > 6 1 1 > .... > > So, if you do what you suggest, and grow *after* the first 4 dirs > are created, the above is what you'll get because the rotor goes > back to zero on the fourth directory create. Now, with changing from > 4 to 8 AGs after the first 4: > > dir number rotor value new inode location (AG) > 1 0 0 > 2 1 1 > 3 2 2 > 4 3 3 > > 5 0 0 > 6 1 1 > 7 2 2 > 8 3 3 > 9 4 4 > 10 5 5 > 11 6 6 > 13 7 7 > 14 0 0 > >> real system these 4TB drives are actually 48TB LUNs. I'm after >> deterministic parallel bandwidth to subsequently added RAIDs after each >> grow operation by simply writing to the proper directory. > > Just create new directories and use the inode number to > determine their location. If the directory is not in the correct AG, > remove it and create a new one, until you have directories located > in the AGs you want. > > Cheers, > > Dave. Thanks for the info Dave. Was hoping it would be more straightforward. Modifying the app for this is out of the question. They've spent 3+ years developing with EXT4 and decided to try XFS at the last minute. Product is to ship in October, so optimizations I can suggest are limited. -- Stan From bfoster@redhat.com Mon Aug 18 14:02:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F34517F3F for ; Mon, 18 Aug 2014 14:02:11 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7EA20AC002 for ; Mon, 18 Aug 2014 12:02:11 -0700 (PDT) X-ASG-Debug-ID: 1408388526-04cb6c54ffbe8e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id mRsPlZaU4Ar8fucV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 12:02:07 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7IJ25YT016134 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 18 Aug 2014 15:02:05 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7IJ25rs008143 for ; Mon, 18 Aug 2014 15:02:05 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 82B4112577F; Mon, 18 Aug 2014 15:02:03 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: mark all internal workqueues as freezable Date: Mon, 18 Aug 2014 15:02:03 -0400 X-ASG-Orig-Subj: [PATCH] xfs: mark all internal workqueues as freezable Message-Id: <1408388523-3684-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408388526 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Workqueues must be explicitly set as freezable to ensure they are frozen in the assocated part of the hibernation/suspend sequence. Freezing of workqueues and kernel threads is important to ensure that modifications are not made on-disk after the hibernation image has been created. Otherwise, the in-memory state can become inconsistent with what is on disk and eventually lead to filesystem corruption. We have reports of free space btree corruptions that occur immediately after restore from hibernate that suggest the xfs-eofblocks workqueue could be causing such problems if it races with hibernation. Mark all of the internal XFS workqueues as freezable to ensure nothing changes on-disk once the freezer infrastructure freezes kernel threads and creates the hibernation image. Signed-off-by: Brian Foster Reported-by: Carlos E. R. --- Hi all, Unfortunately I still haven't been able to reproduce the specific corruption. The best I've been able to do is reproduce a hang/crash on hibernate if I coordinate hibernate with background eofblocks scans, but I couldn't get any output as to what was going on. I ran some similar test cycles with this change and didn't reproduce that hang, so this appears to be effective at least. I reproduce other such problems running hibernation while doing stress level I/O, so to be honest I'm not sure how trustworthy/reliable hibernate is in general. This appears like the right thing to do to reduce chances of corruptions in any event. Brian fs/xfs/xfs_buf.c | 2 +- fs/xfs/xfs_mru_cache.c | 3 ++- fs/xfs/xfs_super.c | 15 ++++++++------- 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index cd7b8ca..ec65050 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1884,7 +1884,7 @@ xfs_buf_init(void) goto out; xfslogd_workqueue = alloc_workqueue("xfslogd", - WQ_MEM_RECLAIM | WQ_HIGHPRI, 1); + WQ_MEM_RECLAIM | WQ_HIGHPRI | WQ_FREEZABLE, 1); if (!xfslogd_workqueue) goto out_free_buf_zone; diff --git a/fs/xfs/xfs_mru_cache.c b/fs/xfs/xfs_mru_cache.c index 1eb6f3d..30ecca3 100644 --- a/fs/xfs/xfs_mru_cache.c +++ b/fs/xfs/xfs_mru_cache.c @@ -304,7 +304,8 @@ _xfs_mru_cache_reap( int xfs_mru_cache_init(void) { - xfs_mru_reap_wq = alloc_workqueue("xfs_mru_cache", WQ_MEM_RECLAIM, 1); + xfs_mru_reap_wq = alloc_workqueue("xfs_mru_cache", + WQ_MEM_RECLAIM|WQ_FREEZABLE, 1); if (!xfs_mru_reap_wq) return -ENOMEM; return 0; diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index b194652..bc9ec44 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -838,32 +838,32 @@ xfs_init_mount_workqueues( struct xfs_mount *mp) { mp->m_data_workqueue = alloc_workqueue("xfs-data/%s", - WQ_MEM_RECLAIM, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_data_workqueue) goto out; mp->m_unwritten_workqueue = alloc_workqueue("xfs-conv/%s", - WQ_MEM_RECLAIM, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_unwritten_workqueue) goto out_destroy_data_iodone_queue; mp->m_cil_workqueue = alloc_workqueue("xfs-cil/%s", - WQ_MEM_RECLAIM, 0, mp->m_fsname); + WQ_MEM_RECLAIM|WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_cil_workqueue) goto out_destroy_unwritten; mp->m_reclaim_workqueue = alloc_workqueue("xfs-reclaim/%s", - 0, 0, mp->m_fsname); + WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_reclaim_workqueue) goto out_destroy_cil; mp->m_log_workqueue = alloc_workqueue("xfs-log/%s", - 0, 0, mp->m_fsname); + WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_log_workqueue) goto out_destroy_reclaim; mp->m_eofblocks_workqueue = alloc_workqueue("xfs-eofblocks/%s", - 0, 0, mp->m_fsname); + WQ_FREEZABLE, 0, mp->m_fsname); if (!mp->m_eofblocks_workqueue) goto out_destroy_log; @@ -1715,7 +1715,8 @@ xfs_init_workqueues(void) * AGs in all the filesystems mounted. Hence use the default large * max_active value for this workqueue. */ - xfs_alloc_wq = alloc_workqueue("xfsalloc", WQ_MEM_RECLAIM, 0); + xfs_alloc_wq = alloc_workqueue("xfsalloc", + WQ_MEM_RECLAIM|WQ_FREEZABLE, 0); if (!xfs_alloc_wq) return -ENOMEM; -- 1.8.3.1 From david@fromorbit.com Mon Aug 18 17:49:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6FC2F7F3F for ; Mon, 18 Aug 2014 17:49:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 32B6D30407A for ; Mon, 18 Aug 2014 15:48:59 -0700 (PDT) X-ASG-Debug-ID: 1408402136-04bdf0109a681e0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id VQnzEsmKC79FtpHU for ; Mon, 18 Aug 2014 15:48:56 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgMKAJCB8lN5LDJ8PGdsb2JhbABZgw2BKoIshQeoJgEBAQEBAQaefIV7AYEcFwUBAQEBODaEBAEFOhwjEAgDGAklDwUlAwcaE4hBwg4XGIVkiHhYB4MvgR0FnEGYcysvgQaBSQEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 19 Aug 2014 08:18:54 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJVjR-0003cn-5q; Tue, 19 Aug 2014 08:48:53 +1000 Date: Tue, 19 Aug 2014 08:48:53 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: inode64 directory placement determinism Message-ID: <20140818224853.GD26465@dastard> X-ASG-Orig-Subj: Re: inode64 directory placement determinism References: <20140818070153.GL20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408402136 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8593 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 18, 2014 at 11:16:12AM -0500, Stan Hoeppner wrote: > On Mon, 18 Aug 2014 17:01:53 +1000, Dave Chinner > wrote: > > On Sun, Aug 17, 2014 at 10:29:21PM -0500, Stan Hoeppner wrote: > >> Say I have a single 4TB disk in an md linear device. The md device has > a > >> filesystem on it formatted with defaults. It has 4 AGs, 0-3. I have > >> created 4 directories. Each should reside in a different AG, the first > >> in > >> AG0. Now I expand the linear device with an identical 4TB disk and > >> execute > >> xfs_growfs. I now have 4 more AGs, 4-7. I create 4 more directories. > >> > >> Will these 4 new dirs be created sequentially in AGs 4-7, or in the > first > >> 4 AGs? Is this deterministic, or is there any chance involved? On the > > > > Deterministic, assuming single threaded *file-system-wide* directory > > creation. Completely unpredictable under concurrent directory > > creations. See xfs_ialloc_ag_select/xfs_ialloc_next_ag. > > > > Note that the rotor used to select the next AG is set to > > zero at mount. > > > > i.e. single threaded behaviour at agcount = 4: > > > > dir number rotor value destination AG > > 1 0 0 > > 2 1 1 > > 3 2 2 > > 4 3 3 > > 5 0 0 > > 6 1 1 > > .... > > > > So, if you do what you suggest, and grow *after* the first 4 dirs > > are created, the above is what you'll get because the rotor goes > > back to zero on the fourth directory create. Now, with changing from > > 4 to 8 AGs after the first 4: > > > > dir number rotor value new inode location (AG) > > 1 0 0 > > 2 1 1 > > 3 2 2 > > 4 3 3 > > > > 5 0 0 > > 6 1 1 > > 7 2 2 > > 8 3 3 > > 9 4 4 > > 10 5 5 > > 11 6 6 > > 13 7 7 > > 14 0 0 > > > >> real system these 4TB drives are actually 48TB LUNs. I'm after > >> deterministic parallel bandwidth to subsequently added RAIDs after each > >> grow operation by simply writing to the proper directory. > > > > Just create new directories and use the inode number to > > determine their location. If the directory is not in the correct AG, > > remove it and create a new one, until you have directories located > > in the AGs you want. > > > > Cheers, > > > > Dave. > > > Thanks for the info Dave. Was hoping it would be more straightforward. > Modifying the app for this is out of the question. They've spent 3+ years > developing with EXT4 and decided to try XFS at the last minute. Product is > to ship in October, so optimizations I can suggest are limited. Perhaps you could actually tell us what the requirement for layout/separation is, and how they are acheiving it with ext4. We really need a more "directed" allocation ability, but it's not clear exactly what requirements need to drive that. Cheers, Dave. -- Dave Chinner david@fromorbit.com From stan@hardwarefreak.com Mon Aug 18 19:02:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E0FCC7F50 for ; Mon, 18 Aug 2014 19:02:09 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id B15FF8F8039 for ; Mon, 18 Aug 2014 17:02:06 -0700 (PDT) X-ASG-Debug-ID: 1408406525-04bdf010a06a4b0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id i5jK0y7YcBBHwuyb for ; Mon, 18 Aug 2014 17:02:05 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id DA35F6C190; Mon, 18 Aug 2014 19:02:04 -0500 (CDT) To: Dave Chinner Subject: Re: inode64 directory placement determinism X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: inode64 directory placement determinism MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Mon, 18 Aug 2014 19:02:04 -0500 From: Stan Hoeppner Cc: In-Reply-To: <20140818224853.GD26465@dastard> References: <20140818070153.GL20518@dastard> <20140818224853.GD26465@dastard> Message-ID: X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1408406525 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, 19 Aug 2014 08:48:53 +1000, Dave Chinner wrote: > On Mon, Aug 18, 2014 at 11:16:12AM -0500, Stan Hoeppner wrote: >> On Mon, 18 Aug 2014 17:01:53 +1000, Dave Chinner >> wrote: >> > On Sun, Aug 17, 2014 at 10:29:21PM -0500, Stan Hoeppner wrote: >> >> Say I have a single 4TB disk in an md linear device. The md device >> >> has >> a >> >> filesystem on it formatted with defaults. It has 4 AGs, 0-3. I have >> >> created 4 directories. Each should reside in a different AG, the >> >> first >> >> in >> >> AG0. Now I expand the linear device with an identical 4TB disk and >> >> execute >> >> xfs_growfs. I now have 4 more AGs, 4-7. I create 4 more directories. >> >> >> >> Will these 4 new dirs be created sequentially in AGs 4-7, or in the >> first >> >> 4 AGs? Is this deterministic, or is there any chance involved? On >> >> the >> > >> > Deterministic, assuming single threaded *file-system-wide* directory >> > creation. Completely unpredictable under concurrent directory >> > creations. See xfs_ialloc_ag_select/xfs_ialloc_next_ag. >> > >> > Note that the rotor used to select the next AG is set to >> > zero at mount. >> > >> > i.e. single threaded behaviour at agcount = 4: >> > >> > dir number rotor value destination AG >> > 1 0 0 >> > 2 1 1 >> > 3 2 2 >> > 4 3 3 >> > 5 0 0 >> > 6 1 1 >> > .... >> > >> > So, if you do what you suggest, and grow *after* the first 4 dirs >> > are created, the above is what you'll get because the rotor goes >> > back to zero on the fourth directory create. Now, with changing from >> > 4 to 8 AGs after the first 4: >> > >> > dir number rotor value new inode location (AG) >> > 1 0 0 >> > 2 1 1 >> > 3 2 2 >> > 4 3 3 >> > >> > 5 0 0 >> > 6 1 1 >> > 7 2 2 >> > 8 3 3 >> > 9 4 4 >> > 10 5 5 >> > 11 6 6 >> > 13 7 7 >> > 14 0 0 >> > >> >> real system these 4TB drives are actually 48TB LUNs. I'm after >> >> deterministic parallel bandwidth to subsequently added RAIDs after >> >> each >> >> grow operation by simply writing to the proper directory. >> > >> > Just create new directories and use the inode number to >> > determine their location. If the directory is not in the correct AG, >> > remove it and create a new one, until you have directories located >> > in the AGs you want. >> > >> > Cheers, >> > >> > Dave. >> >> >> Thanks for the info Dave. Was hoping it would be more straightforward. >> Modifying the app for this is out of the question. They've spent 3+ >> years >> developing with EXT4 and decided to try XFS at the last minute. Product >> is >> to ship in October, so optimizations I can suggest are limited. > > Perhaps you could actually tell us what the requirement for > layout/separation is, and how they are acheiving it with ext4. We > really need a more "directed" allocation ability, but it's not clear > exactly what requirements need to drive that. > > Cheers, > > Dave. The test harness app writes to thousands of preallocated files in hundreds of directories. The target is ~250MB/s at the application per array, more if achievable, writing a combination of fast and slow streams from up to ~1000 threads, to different files, circularly. The mix of stream rates and the files they write will depend on the end customers' needs. Currently they have 1 FS per array with 3 top level dirs each w/3 subdirs, 2 of these with ~100 subdirs each, and hundreds files in each of those. Simply doing a concat, growing and just running with it might work fine. The concern is ending up with too many fast stream writers hitting AGs on a single array which won't be able to keep up. Currently they simply duplicate the layout on each new filesystem they mount. The application duplicates the same layout on each filesystem and does its own load balancing among the group of them. Ideally they'd obviously like to simply add files to existing directories after growing, but that won't achieve scalable bandwidth. -- Stan From david@fromorbit.com Mon Aug 18 21:25:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id CB52E7F51 for ; Mon, 18 Aug 2014 21:25:41 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B9F8E304082 for ; Mon, 18 Aug 2014 19:25:41 -0700 (PDT) X-ASG-Debug-ID: 1408415135-04cb6c54fecc690001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id fPVevXPr4CxcoToL for ; Mon, 18 Aug 2014 19:25:36 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApoZABO18lN5LDJ8PGdsb2JhbABZgw2BKoIshQeoKwEBAQEBAQaefIV7AYEYFwUBAQEBODaEAwEBBAE6HBUOBQsIAxgJJQ8FJQMHGhMUB4gfB8JDFxiFZIhuEAIBBkkHgy+BHQWcQYwHjGwrL4EHgUgBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 19 Aug 2014 11:55:35 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJZ77-00040u-83; Tue, 19 Aug 2014 12:25:33 +1000 Date: Tue, 19 Aug 2014 12:25:33 +1000 From: Dave Chinner To: "Carlos E. R." Cc: XFS mailing list Subject: Re: [RFD]: Help in setting up XFS Message-ID: <20140819022533.GE26465@dastard> X-ASG-Orig-Subj: Re: [RFD]: Help in setting up XFS References: <20140818070312.GM20518@dastard> <20140818132026.GO20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408415136 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8599 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Mon, Aug 18, 2014 at 04:47:36PM +0200, Carlos E. R. wrote: > On Monday, 2014-08-18 at 23:20 +1000, Dave Chinner wrote: > >On Mon, Aug 18, 2014 at 12:25:57PM +0200, Carlos E. R. wrote: > >>Just plug in the stick and click on the icon to mount it. No > >>different than any other filesystem. > > > >That doesn't work for machines with no desktop or ones that you > >access via ssh. Learn the command line first then you can always get > >the machine to do what you want regardless of how you need to access > >it. Indeed, typing commands is often faster than using the mouse, > >especially if you know how to use command history search > >effectively... > > I use the CLI method myself, but I don't see the point on novices > using it when there are modern methods far easier :-) That's quite disrespectful and condescending towards new users who are trying to learn new skills - you were once a novice, too. To make my point unambiguously clear, I'll repeat what you just said as it came across to me: 'I'm an expert and I know the CLI, but I think he is a dumb n00b so I gave him a solution I think is appropriate for dumb n00bs even though I know I'm not answering the question he asked.' Does that sound like appropriate "guidance" to you? But I'll give you the benefit of the doubt - I've seen this often enough to know that frequently people are not even aware they are making unconcious judgements like this until they are pointed out. Especially as you've done is again in this email: > And each distribution has specifics. On ubuntu you probably need to > do "sudo mount ...", a plain mount should fail. So if the > generalized help an upstream mail list can provide, the best place > to ask for help is the specific help forum of that distribution, as > they will probably know best the easiest way to install and use the > tools they provide. You are implying that the XFS community doesn't have the knowledge or experience to support XFS users from different distros. You are also implying that we don't care about our users enough to try to help them in such situations where the problem is a distro specific quirk. Years of experience has taught us that distro quirks really don't matter anywhere near as much as, say, the version of software being used. Also, I suspect that you don't realise that we have all the major distro XFS userspace package maintainers and the relevant distro kernel filesystem maintainers on the list and listening in. We actually have more distro specific storage infrastructure expertise (not to mention overall storage expertise) on this list than you'll find in most individual distro support forums. This is a highly technical community and we tend to have high standards w.r.t. to the quality of responses given to users. If you want to provide help to XFS users - new or experienced - on this list, then please give relevant, respectful answers to questions without trying to demonstrate your expertise to everyone. Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@redhat.com Mon Aug 18 22:14:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B5C9F7F55 for ; Mon, 18 Aug 2014 22:14:17 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 317FAAC002 for ; Mon, 18 Aug 2014 20:14:13 -0700 (PDT) X-ASG-Debug-ID: 1408418052-04cb6c54ffcd940001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Ftn3VaAKxEiyAw1N (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 18 Aug 2014 20:14:12 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7J3EBwN009862 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 18 Aug 2014 23:14:12 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7J3EAXX022269 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Mon, 18 Aug 2014 23:14:11 -0400 Message-ID: <53F2C103.8030607@redhat.com> Date: Mon, 18 Aug 2014 22:14:11 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfs: add a few more verifier tests Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: [PATCH] xfs: add a few more verifier tests Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408418052 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 These were exposed by fsfuzzer runs; without them we fail in various exciting and sometimes convoluted ways when we encounter disk corruption. Without the MAXLEVELS tests we tend to walk off the end of an array in a loop like this: for (i = 0; i < cur->bc_nlevels; i++) { if (cur->bc_bufs[i]) Without the dirblklog test we try to allocate more memory than we could possibly hope for and loop forever: xfs_dabuf_map() nfsb = mp->m_dir_geo->fsbcount; irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_SLEEP... As for the logbsize check, that's the convoluted one. If logbsize is specified at mount time, it's sanitized in xfs_parseargs; in particular it makes sure that it's not > XLOG_MAX_RECORD_BSIZE. If not specified at mount time, it comes from the superblock via sb_logsunit; this is limited to 256k at mkfs time as well; it's copied into m_logbsize in xfs_finish_flags(). However, if for some reason the on-disk value is corrupt and too large, nothing catches it. It's a circuitous path, but that size eventually finds its way to places that make the kernel very unhappy, leading to oopses in xlog_pack_data() because we use the size as an index into iclog->ic_data, but the array is not necessarily that big. Anyway - bounds checking when we read from disk is a good thing! Signed-off-by: Eric Sandeen -- (if this should be separate patches, I can resend if you like) diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 4bffffe..a4a9e0e 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2209,6 +2209,10 @@ xfs_agf_verify( be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp))) return false; + if (!(be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) <= XFS_BTREE_MAXLEVELS && + be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) <= XFS_BTREE_MAXLEVELS)) + return false; + /* * during growfs operations, the perag is not fully initialised, * so we can't use it for any useful checking. growfs ensures we can't diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index b62771f..ae15060 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -2051,6 +2051,8 @@ xfs_agi_verify( if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum))) return false; + if (!(be32_to_cpu(agi->agi_level) <= XFS_BTREE_MAXLEVELS)) + return false; /* * during growfs operations, the perag is not fully initialised, * so we can't use it for any useful checking. growfs ensures we can't diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index ad525a5..8426e5e 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -279,11 +279,13 @@ xfs_mount_validate_sb( sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG || sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG || sbp->sb_blocksize != (1 << sbp->sb_blocklog) || + sbp->sb_dirblklog > XFS_MAX_BLOCKSIZE_LOG || sbp->sb_inodesize < XFS_DINODE_MIN_SIZE || sbp->sb_inodesize > XFS_DINODE_MAX_SIZE || sbp->sb_inodelog < XFS_DINODE_MIN_LOG || sbp->sb_inodelog > XFS_DINODE_MAX_LOG || sbp->sb_inodesize != (1 << sbp->sb_inodelog) || + sbp->sb_logsunit > XLOG_MAX_RECORD_BSIZE || sbp->sb_inopblock != howmany(sbp->sb_blocksize,sbp->sb_inodesize) || (sbp->sb_blocklog - sbp->sb_inodelog != sbp->sb_inopblog) || (sbp->sb_rextsize * sbp->sb_blocksize > XFS_MAX_RTEXTSIZE) || From webmaster@dev104.magizz.com Tue Aug 19 03:55:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B27527F3F for ; 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Thank you From thomas@klaube.net Tue Aug 19 10:34:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 92F6E7F3F for ; Tue, 19 Aug 2014 10:34:34 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5FDE830407E for ; Tue, 19 Aug 2014 08:34:34 -0700 (PDT) X-ASG-Debug-ID: 1408462470-04bdf0109a928d0001-NocioJ Received: from orion.efm.de (orion.efm.de [195.190.148.230]) by cuda.sgi.com with ESMTP id vkV4NfWXcTtVXOwG (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 19 Aug 2014 08:34:32 -0700 (PDT) X-Barracuda-Envelope-From: thomas@klaube.net X-Barracuda-Apparent-Source-IP: 195.190.148.230 Received: from localhost (localhost [127.0.0.1]) by orion.efm.de (Postfix) with ESMTP id 8B06F1A1003E for ; Tue, 19 Aug 2014 17:34:30 +0200 (CEST) X-Virus-Scanned: amavisd-new at orion.efm.de Received: from orion.efm.de ([127.0.0.1]) by localhost (orion.efm.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XmXNUmi9FRtQ for ; Tue, 19 Aug 2014 17:34:30 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by orion.efm.de (Postfix) with ESMTP id 710111A1003F for ; Tue, 19 Aug 2014 17:34:30 +0200 (CEST) X-Virus-Scanned: amavisd-new at orion.efm.de Received: from orion.efm.de ([127.0.0.1]) by localhost (orion.efm.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id OSSlpC6a1PgD for ; Tue, 19 Aug 2014 17:34:30 +0200 (CEST) Received: from orion.efm.de (orion.efm.de [195.190.148.230]) by orion.efm.de (Postfix) with ESMTP id 4FD951A1003E for ; Tue, 19 Aug 2014 17:34:30 +0200 (CEST) Date: Tue, 19 Aug 2014 17:34:30 +0200 (CEST) From: Thomas Klaube To: xfs@oss.sgi.com Message-ID: <362338960.3862279.1408462470243.JavaMail.zimbra@klaube.net> In-Reply-To: <159192779.3859815.1408461799560.JavaMail.zimbra@klaube.net> Subject: xlog_write: reservation ran out. Need to up reservation MIME-Version: 1.0 X-ASG-Orig-Subj: xlog_write: reservation ran out. Need to up reservation Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Mailer: Zimbra 8.0.5_GA_5839 (ZimbraWebClient - GC36 (Linux)/8.0.5_GA_5839) Thread-Topic: xlog_write: reservation ran out. Need to up reservation Thread-Index: MAXSuDewHo8arNYjMVm3SkM+CWalbg== X-GBUdb-Analysis: Unknown X-MessageSniffer-Scan-Result: 0 X-MessageSniffer-Rules: 0-0-0-4844-c X-Barracuda-Connect: orion.efm.de[195.190.148.230] X-Barracuda-Start-Time: 1408462471 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.02 X-Barracuda-Spam-Status: No, SCORE=0.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8616 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... Hi all, I am currently testing/benchmarking xfs on top of a bcache. When I run a heavy IO workload (fio with 64 threads, read/write) on the device for ~30-45min I get [ 9092.978268] XFS (bcache1): xlog_write: reservation summary: [ 9092.978268] trans type = (null) (42) [ 9092.978268] unit res = 18730384 bytes [ 9092.978268] current res = -1640 bytes [ 9092.978268] total reg = 512 bytes (o/flow = 1163749592 bytes) [ 9092.978268] ophdrs = 655304 (ophdr space = 7863648 bytes) [ 9092.978268] ophdr + reg = 1171613752 bytes [ 9092.978268] num regions = 2 [ 9092.978268] [ 9092.978272] XFS (bcache1): region[0]: LR header - 512 bytes [ 9092.978273] XFS (bcache1): region[1]: commit - 0 bytes [ 9092.978274] XFS (bcache1): xlog_write: reservation ran out. Need to up reservation [ 9092.978303] XFS (bcache1): xfs_do_force_shutdown(0x2) called from line 2036 of file fs/xfs/xfs_log.c. Return address = 0xffffffffa04433c8 [ 9092.979189] XFS (bcache1): Log I/O Error Detected. Shutting down filesystem [ 9092.979210] XFS (bcache1): Please umount the filesystem and rectify the problem(s) [ 9092.979238] XFS (bcache1): xfs_do_force_shutdown(0x2) called from line 1497 of file fs/xfs/xfs_log.c. Return address = 0xffffffffa0443b57 [ 9093.183869] XFS (bcache1): xfs_log_force: error 5 returned. [ 9093.489944] XFS (bcache1): xfs_log_force: error 5 returned. Kernel is 3.16.1 but this also happens with Ubuntu 3.13.0.34. With the bcache the fio puts ~30k IOps on the filesystem. xfs_info: meta-data=/dev/bcache1 isize=256 agcount=8, agsize=268435455 blks = sectsz=512 attr=2 data = bsize=4096 blocks=1949957886, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=521728, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 umount/mount recovers the fs and the fs seems ok. I can reproduce this behavior. Is there anything I could try to debug this? Regards Thomas From FachK@hcdsb.org Tue Aug 19 11:37:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 40AEB7F3F for ; Tue, 19 Aug 2014 11:37:02 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C3C80AC006 for ; Tue, 19 Aug 2014 09:36:58 -0700 (PDT) X-ASG-Debug-ID: 1408466214-04cbb054861078d0001-NocioJ Received: from thing1.hcdsb.org (thing1.hcdsb.org [209.250.191.165]) by cuda.sgi.com with ESMTP id kQYnwjUqUjHDOVaQ (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Tue, 19 Aug 2014 09:36:54 -0700 (PDT) X-Barracuda-Envelope-From: FachK@hcdsb.org X-Barracuda-Apparent-Source-IP: 209.250.191.165 Received: from CAS1.hcdsb.edu.on.ca (209.250.161.210) by thing1.hcdsb.org (209.250.191.165) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 19 Aug 2014 12:36:38 -0400 Received: from MBX12.hcdsb.edu.on.ca ([fe80::3948:1054:a4a0:749e]) by cas1.hcdsb.edu.on.ca ([fe80::80e0:f9da:b729:eb54%11]) with mapi id 14.03.0181.006; Tue, 19 Aug 2014 12:36:52 -0400 From: "Fach, Kathleen" Subject: Thread-Index: Ac+7y8cweVz9o/4gR+yxf93OlJriig== X-ASG-Orig-Subj: Date: Tue, 19 Aug 2014 16:36:51 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [209.250.191.22] Content-Type: multipart/alternative; boundary="_000_CCD71A6A08CDDB419ED7A4CBE0BBB8707430374Cmbx12hcdsbeduon_" MIME-Version: 1.0 To: Undisclosed recipients:; X-Barracuda-Connect: thing1.hcdsb.org[209.250.191.165] X-Barracuda-Start-Time: 1408466214 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.81 X-Barracuda-Spam-Status: No, SCORE=1.81 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA620a, HTML_MESSAGE, MISSING_SUBJECT, MISSING_SUBJECT_2, THREAD_INDEX X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8618 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.00 HTML_MESSAGE BODY: HTML included in message 0.01 MISSING_SUBJECT Missing Subject: header 0.50 BSF_SC0_SA620a Custom Rule SA620a 1.28 MISSING_SUBJECT_2 Missing Subject: header --_000_CCD71A6A08CDDB419ED7A4CBE0BBB8707430374Cmbx12hcdsbeduon_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable A donation was made to you by Gloria Mackenzie, For more info contact Glori= a Mackenzie on( t111ch@hotmail.com ________________________________ This email (including any attachments) is property of the Halton Catholic D= istrict School Board and is private and intended only for the person(s) to = whom it is addressed. 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=0Aamj --b1_0ff3230ba54923cd99afdf56cf0749a3-- From bfoster@redhat.com Tue Aug 19 12:26:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 450A87F3F for ; Tue, 19 Aug 2014 12:26:20 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 249E78F8035 for ; Tue, 19 Aug 2014 10:26:17 -0700 (PDT) X-ASG-Debug-ID: 1408469175-04cbb0548710bec0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 5GTDCLKncPqTqHFB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 19 Aug 2014 10:26:16 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7JHQEiL028137 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 19 Aug 2014 13:26:14 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7JHQD0I004773 for ; Tue, 19 Aug 2014 13:26:14 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 9C16F12577F; Tue, 19 Aug 2014 13:26:12 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH RFC] xfs/051: test buffer use after free race on I/O failure in XFS log recovery Date: Tue, 19 Aug 2014 13:26:12 -0400 X-ASG-Orig-Subj: [PATCH RFC] xfs/051: test buffer use after free race on I/O failure in XFS log recovery Message-Id: <1408469172-55478-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408469175 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 A buffer use after free race was discovered in the XFS log recovery codepath if I/O failures occur during recovery. The I/O submission path can proceed to abort the mount and release the only reference held on some buffers before I/O completion processing (e.g., async workqueue processing) might have completed. Badness ensues if the I/O completion path subsequently attempts to access said buffers. The test manufactures the race by forcing all writes to fail (via dm-flakey) after a fixed period of time. A delay is inserted into the mount codepath to synchronize write failures with log recovery. Credit for discovery of the race and definition of the reproducible test case goes to Alex Lyakas. [NOTE: This still depends on kernel side instrumentation. Insert a 10s delay immediately prior to log recovery to reproduce.] Signed-off-by: Brian Foster Reported-by: Alex Lyakas --- Hi guys, This is obviously incomplete as there is no mechanism to synchronize write failures with log recovery. I was hoping we could get around that, but apparently we unconditionally reset the inactive range of the log before we get into log recovery. Anyways, I just wanted to throw this over the wall in case it's useful for testing in intermediate form. This reproduces the problem for me with the 10s delay on the kernel side. The mount fails, I see a series of BUG()s and the vm becomes generally unusable. I'll send a new version when I have some kind of synchronization mechanism worked out. Brian tests/xfs/051 | 84 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/051.out | 2 ++ tests/xfs/group | 1 + 3 files changed, 87 insertions(+) create mode 100755 tests/xfs/051 create mode 100644 tests/xfs/051.out diff --git a/tests/xfs/051 b/tests/xfs/051 new file mode 100755 index 0000000..25acb28 --- /dev/null +++ b/tests/xfs/051 @@ -0,0 +1,84 @@ +#! /bin/bash +# FS QA Test No. 051 +# +# Simulate a buffer use after free race in XFS log recovery. The race triggers +# on I/O failures during log recovery. Note that this test is dangerous as it +# causes BUG() errors or a panic. +# +#----------------------------------------------------------------------- +# Copyright (c) 2013 Oracle, Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* + _scratch_unmount > /dev/null 2>&1 +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/dmflakey + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux + +_require_scratch +_require_dm_flakey + +echo "Silence is golden." + +_scratch_mkfs_xfs >/dev/null 2>&1 +_scratch_mount + +# Start a workload and shutdown the fs. The subsequent mount will require log +# recovery. +$FSSTRESS_PROG -n 9999 -p 2 -w -d $SCRATCH_MNT > /dev/null 2>&1 & +sleep 5 +src/godown -f $SCRATCH_MNT +killall -q $FSSTRESS_PROG +wait +_scratch_unmount + +# TODO: Add a mechanism to take advantage of the 5s error delay. This currently +# depends on a >5s delay inserted into the mount codepath prior to start of log +# recovery. +_init_flakey +BLK_DEV_SIZE=`blockdev --getsz $SCRATCH_DEV` +FLAKEY_TABLE="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 5 180" +_load_flakey_table $FLAKEY_ALLOW_WRITES + +_mount_flakey > /dev/null 2>&1 # should fail! +_cleanup_flakey + +# replay the log +_scratch_mount +_scratch_unmount + +# success, all done +status=0 +exit diff --git a/tests/xfs/051.out b/tests/xfs/051.out new file mode 100644 index 0000000..5180bc4 --- /dev/null +++ b/tests/xfs/051.out @@ -0,0 +1,2 @@ +QA output created by 051 +Silence is golden. diff --git a/tests/xfs/group b/tests/xfs/group index 4d35df5..9784dea 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -47,6 +47,7 @@ 048 other auto quick 049 rw auto quick 050 quota auto quick +051 dangerous 052 quota db auto quick 054 quota auto quick 055 dump ioctl remote tape -- 1.8.3.1 From somdeepdey10@gmail.com Tue Aug 19 12:44:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,HTML_MESSAGE,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D918D7F3F for ; Tue, 19 Aug 2014 12:44:29 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B57F48F8035 for ; Tue, 19 Aug 2014 10:44:29 -0700 (PDT) X-ASG-Debug-ID: 1408470267-04cb6c54fef7a50001-NocioJ Received: from mail-ig0-f174.google.com (mail-ig0-f174.google.com [209.85.213.174]) by cuda.sgi.com with ESMTP id fPipObgRWSDTTszV (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 19 Aug 2014 10:44:27 -0700 (PDT) X-Barracuda-Envelope-From: somdeepdey10@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.213.174 X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.174] Received: by mail-ig0-f174.google.com with SMTP id c1so10426563igq.13 for ; Tue, 19 Aug 2014 10:44:27 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.174] X-Barracuda-IPDD: Level1 [gmail.com/209.85.213.174] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=1W/woslPIm1Vptacj8cHNCcvtZYsdjaYlseSFrHV0yo=; b=sGJM4Svz68lO57Xq5iICRHdrZ8Q/8rMe9ntaH6mJ9Gy2IvdlIlR3WJZUflUhk8GqP7 6dKsxkT3AjNW1q4HMlk3eE7GokTMdfGTgQ1/7+ilYmpEg067ZnkPVe6Q2h6OKklDvkpJ ddgThB7NbdLaG98hWqUedT0xf2Es2qLUAcn0tONdtuBz3HhQcsGzTstO1FD1MUI5AxzW c5DKdMRJ+SmkEp1MXhzmsOiVTSy/N8Nwpky4IOTurOxZQ9aWhSWAZ6VL39TmVp3b/ssQ 57VHde63MSBdd08ulsrqjeR4ng5Zd4RMPNZTsXEDgeOS189hpfR8YudfdUmUe204yOv/ vSvw== MIME-Version: 1.0 X-Received: by 10.50.33.73 with SMTP id p9mr7360051igi.24.1408470267088; Tue, 19 Aug 2014 10:44:27 -0700 (PDT) Received: by 10.107.135.39 with HTTP; Tue, 19 Aug 2014 10:44:27 -0700 (PDT) Date: Tue, 19 Aug 2014 23:14:27 +0530 Message-ID: Subject: [RFD] xfs_fsr: Adding features for online defragmentation From: Somdeep Dey X-ASG-Orig-Subj: [RFD] xfs_fsr: Adding features for online defragmentation To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=089e01538e5af256ba0500ff097f X-Barracuda-Connect: mail-ig0-f174.google.com[209.85.213.174] X-Barracuda-Start-Time: 1408470267 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: pict.edu X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8620 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --089e01538e5af256ba0500ff097f Content-Type: text/plain; charset=UTF-8 Hello, We are a team of three final year under-graduates from Pune Institute of Computer Technology , India and were looking for a project in XFS with a development time of about 6 - 7 months. On contacting Dave, he suggested we work on the userspace utility, xfs_fsr. xfs_fsr(online defragmenter): A few possible enhancements to xfs_fsr are as follows: 1. explicit control of locality for groups of files. 2. ability to defragment only portions of files rather than just whole files. 3. defragmenting free space. 4. enhanced/faster filesystem scanning. Our understanding of the problem is as follows: A) We identified the first thing needed, will be to find regions of fragmented free space. Dave directed us to the following prototype that he had written (http://oss.sgi.com/archives/xfs/2012-10/msg00363.html) B) The next task will be to go about finding the owners of the blocks that are causing the region of fragmented free space. It will require a reverse block map to do this efficiently. Dave has said that he is likely to implement it in the next couple of months, and we understand that we will to need to define the interfaces needed to query the rmap from userspace. C) Once the fragmented free space, and the files that own the blocks that fragment the free space are found we will need to move them, and take care of the following: (a) move just the blocks we need to. (b) control exactly where we move them to. We are reviewing the recent patches on the mailing list for IOC_MOV_DATA, which allows an arbitrary range of one file to be swapped with an arbitrary range of another file. The core mechanism required by #2. (http://oss.sgi.com/archives/xfs/2014-07/msg00109.html) Hence after due consideration we are planning to execute the 4 sub topics in the following order: 1. defragmenting free space. 2. enhanced/faster filesystem scanning. 3. ability to defragment only portions of files rather than just whole files. 4. explicit control of locality for groups of files. Comments regarding the same will be appreciated. We would also like to thank Dave for his inputs. We look forward to working with the community and hope to make a valuable contribution. Regards. --089e01538e5af256ba0500ff097f Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hello,

We are a team of three final year under-graduates from=C2=A0Pune Institute
of Computer Technology, India and wer= e looking for a project in XFS=C2=A0
with a development time of about 6 - 7 months. On contacting Dave,=C2= =A0
he suggested we work on the userspace utility, xfs_fsr.
=C2=A0
xfs_fsr(online defragmenter):
A few possible enhancements to xfs= _fsr are as follows:
=C2=A0
1. explicit control of locality for groups of files.
2. ability to defragment only portions of files rather
than just whole files.
3. defragmenting free space.
<= div class=3D"gmail_extra" style=3D"font-family:arial,sans-serif;font-size:1= 3px"> 4. enhanced/faster filesystem scanning.
=C2=A0
Our = understanding of the problem is as follows:
=C2=A0
A) We identified the first thing needed, will be to= find regions of=C2=A0
fragmented free space. Dave directed us to the following prototype=C2= =A0
that he had written
(http://oss.sgi.com/archives/xfs/20= 12-10/msg00363.html)
=C2=A0
B) =C2=A0The next task will be to go about finding = the owners of the blocks
that are causing the region of fragmented free space. It will require= a
reverse block map to do this efficiently. Dave has said that he is likely
to implement it in the next couple of months, and we understand t= hat
we will to need to define the interfaces needed to query the rmap fro= m=C2=A0
userspace.
=C2=A0
C) =C2=A0Once the fragmented free s= pace, and the files that own the blocks=C2=A0
that fragment the free space are found we will need to move them, and= =C2=A0
take care of the following:
(a) move just the blocks we need to.=
(b) control exactly where we move them to.
=C2=A0
We = are reviewing the recent patches on the mailing list for IOC_MOV_DATA,=C2= =A0
which allows an arbitrary range of one file to be swapped with an arb= itrary
range of another file. The core mechanism required by #2.
(http://oss.sgi.com/archives/xfs/2014-07/msg00109.html)
=C2=A0
Hence after due consideration we are planning to ex= ecute
the 4 sub topics in the following order:
1. defragmenting = free space.
2. enhanced/faster filesystem scanning.
3. ability to defr= agment only portions of files rather
than just whole files.
4. explicit control of locality for= groups of files.
=C2=A0
Comments regarding the same will be appreciated. We= would also like to thank=C2=A0
Dave for his inputs. We look forward to working with the community an= d hope to
make a valuable contribution.
=C2=A0
Regards.
--089e01538e5af256ba0500ff097f-- From BATV+e7c916d85e0c38ddc6b0+4013+infradead.org+hch@bombadil.srs.infradead.org Tue Aug 19 13:15:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 79BFE7F3F for ; Tue, 19 Aug 2014 13:15:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 593A28F804C for ; Tue, 19 Aug 2014 11:15:49 -0700 (PDT) X-ASG-Debug-ID: 1408472142-04bdf010a19eb90001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 6lKjbzZ9JnOtGlW4 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 19 Aug 2014 11:15:43 -0700 (PDT) X-Barracuda-Envelope-From: BATV+e7c916d85e0c38ddc6b0+4013+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XJnwc-0001Xu-Ut; Tue, 19 Aug 2014 18:15:42 +0000 Date: Tue, 19 Aug 2014 11:15:42 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfs: add a few more verifier tests Message-ID: <20140819181542.GA31177@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfs: add a few more verifier tests References: <53F2C103.8030607@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F2C103.8030607@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1408472143 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8621 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- > Anyway - bounds checking when we read from disk is a good thing! Absolutelt! Looks good modulo a few nitpicks below. Reviewed-by: Christoph Hellwig > diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c > index 4bffffe..a4a9e0e 100644 > --- a/fs/xfs/libxfs/xfs_alloc.c > +++ b/fs/xfs/libxfs/xfs_alloc.c > @@ -2209,6 +2209,10 @@ xfs_agf_verify( > be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp))) > return false; > > + if (!(be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) <= XFS_BTREE_MAXLEVELS && > + be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) <= XFS_BTREE_MAXLEVELS)) > + return false; Maybe it's just me, but negated numeric comparisms always confuse the hell out of me, why not simply: if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS) return false; if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS) return false; > --- a/fs/xfs/libxfs/xfs_ialloc.c > +++ b/fs/xfs/libxfs/xfs_ialloc.c > @@ -2051,6 +2051,8 @@ xfs_agi_verify( > if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum))) > return false; > > + if (!(be32_to_cpu(agi->agi_level) <= XFS_BTREE_MAXLEVELS)) > + return false; Same here. From sandeen@sandeen.net Tue Aug 19 14:07:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id CD8AE7F3F for ; Tue, 19 Aug 2014 14:07:43 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6806BAC001 for ; Tue, 19 Aug 2014 12:07:40 -0700 (PDT) X-ASG-Debug-ID: 1408475258-04bdf01097a0e50001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id R8QWLrACNPcZQsrG for ; Tue, 19 Aug 2014 12:07:38 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id E0A6563D3BF0; Tue, 19 Aug 2014 14:07:37 -0500 (CDT) Message-ID: <53F3A07B.9040402@sandeen.net> Date: Tue, 19 Aug 2014 14:07:39 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Christoph Hellwig , Eric Sandeen CC: xfs-oss Subject: Re: [PATCH] xfs: add a few more verifier tests References: <53F2C103.8030607@redhat.com> <20140819181542.GA31177@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfs: add a few more verifier tests In-Reply-To: <20140819181542.GA31177@infradead.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408475258 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8623 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/19/14, 1:15 PM, Christoph Hellwig wrote: >> Anyway - bounds checking when we read from disk is a good thing! > > Absolutelt! > > Looks good modulo a few nitpicks below. > > Reviewed-by: Christoph Hellwig > >> diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c >> index 4bffffe..a4a9e0e 100644 >> --- a/fs/xfs/libxfs/xfs_alloc.c >> +++ b/fs/xfs/libxfs/xfs_alloc.c >> @@ -2209,6 +2209,10 @@ xfs_agf_verify( >> be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp))) >> return false; >> >> + if (!(be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) <= XFS_BTREE_MAXLEVELS && >> + be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) <= XFS_BTREE_MAXLEVELS)) >> + return false; > > Maybe it's just me, but negated numeric comparisms always confuse the > hell out of me, why not simply: > > if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS) > return false; > if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS) > return false; > >> --- a/fs/xfs/libxfs/xfs_ialloc.c >> +++ b/fs/xfs/libxfs/xfs_ialloc.c >> @@ -2051,6 +2051,8 @@ xfs_agi_verify( >> if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum))) >> return false; >> >> + if (!(be32_to_cpu(agi->agi_level) <= XFS_BTREE_MAXLEVELS)) >> + return false; > > Same here. yeah; just following the style of the functions as they exist today... if (!(agf->agf_magicnum == cpu_to_be32(XFS_AGF_MAGIC) && XFS_AGF_GOOD_VERSION(be32_to_cpu(agf->agf_versionnum)) && be32_to_cpu(agf->agf_freeblks) <= be32_to_cpu(agf->agf_length) && ... dunno. Don't care too much either way, but consistency and all that... Maybe the "AGF_GOOD_VERSION" required the negation, and it all got lumped together? Thanks, -Eric From prvs=330814f317=clm@fb.com Tue Aug 19 14:25:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C98CE7F3F for ; Tue, 19 Aug 2014 14:25:05 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8CACF30407A for ; Tue, 19 Aug 2014 12:25:02 -0700 (PDT) X-ASG-Debug-ID: 1408476301-04bdf010a0a1a30001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by cuda.sgi.com with ESMTP id r7vdAqk1BMDVxpov for ; Tue, 19 Aug 2014 12:25:01 -0700 (PDT) X-Barracuda-Envelope-From: prvs=330814f317=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.145.42 X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] Received: from pps.filterd (m0004346 [127.0.0.1]) by mx0a-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s7JJNt55012676; Tue, 19 Aug 2014 12:24:54 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] X-Barracuda-IPDD: Level2 [fb.com/67.231.145.42] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : cc : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=714u2T/Rb7YBPAdPSfK/NWidRfzN8wu0rUqOen/qeQc=; b=lLNwhoPF0sDmO2A6oxiQ+lIQaFqI9fYh6VRepaiWnPMHRwMWDnuGRzrIfFw5+mAo9cCf WFjnkDzD/HvfjvZGvOLEWhNO6yZtyXQF9ILTTtsh8wJuLWNskUwtlj4MAoDDTkFuTJ47 C//dAORAvjVm4ssd9mjIqEtJF7eza5EIlkE= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0a-00082601.pphosted.com with ESMTP id 1nurejhyqu-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Tue, 19 Aug 2014 12:24:54 -0700 Received: from [172.20.34.140] (192.168.57.29) by mail.thefacebook.com (192.168.16.19) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 19 Aug 2014 12:24:52 -0700 Message-ID: <53F3A480.6020000@fb.com> Date: Tue, 19 Aug 2014 15:24:48 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: , Eric Sandeen Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> <20140812011743.GU20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT In-Reply-To: <20140812011743.GU20518@dastard> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.57.29] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-19_05:2014-08-19,2014-08-19,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=8.33061397642609e-12 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408190221 X-FB-Internal: deliver X-Barracuda-Connect: mx0a-00082601.pphosted.com[67.231.145.42] X-Barracuda-Start-Time: 1408476301 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/11/2014 09:17 PM, Dave Chinner wrote: > On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: >> >> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c >> index 1f66779..023d575 100644 >> --- a/fs/xfs/xfs_file.c >> +++ b/fs/xfs/xfs_file.c >> @@ -295,7 +295,8 @@ xfs_file_read_iter( >> xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); >> return ret; >> } >> - truncate_pagecache_range(VFS_I(ip), pos, -1); >> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, >> + pos >> PAGE_CACHE_SHIFT, -1); >> } >> xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); >> } > > I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire > occasionally. It always fires immediately before some other ASSERT() > they fires with a block map/page cache inconsistency. It usually > fires in a test that runs fsx or fsstress. The fsx failures are new > regressions caused by this patch. e.g. generic/263 hasn't failed for > months on any of my systems and this patch causes it to fail > reliably on my 1k block size test config. > > I'm going to assume at this point that this is uncovering some other > existing bug, but it means I'm not going to push this fix until I > understand what is actually happening here. It is possible that what > I'm seeing is related to Brian's collapse range bug fixes, but until > I applied this direct IO patch I'd never seen fsx throw ASSERTs in > xfs_bmap_shift_extents().... > > Either way, more testing and understanding is needed. Do you have the output from xfs and the command line args it used? For my device, it picks: -r 4096 -t 512 -w 512 -Z And for a blocksize 1024 test I did mkfs.xfs -b size=1024 But I can't trigger failures with or without the invalidate_inode_pages2 change. I was hoping to trigger on 3.16, and then jump back to 3.10 + my patch to see if the patch alone was at fault. -chris From sandeen@sandeen.net Tue Aug 19 14:36:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4097A7F3F for ; Tue, 19 Aug 2014 14:36:10 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 2F5A28F8039 for ; Tue, 19 Aug 2014 12:36:06 -0700 (PDT) X-ASG-Debug-ID: 1408476965-04cb6c5500fdce0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 3fXBOu0LJTjulK5p for ; Tue, 19 Aug 2014 12:36:05 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 376FE602D4F3; Tue, 19 Aug 2014 14:36:05 -0500 (CDT) Message-ID: <53F3A726.8080305@sandeen.net> Date: Tue, 19 Aug 2014 14:36:06 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH V2] xfs: add a few more verifier tests References: <53F2C103.8030607@redhat.com> X-ASG-Orig-Subj: [PATCH V2] xfs: add a few more verifier tests In-Reply-To: <53F2C103.8030607@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408476965 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8624 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- These were exposed by fsfuzzer runs; without them we fail in various exciting and sometimes convoluted ways when we encounter disk corruption. Without the MAXLEVELS tests we tend to walk off the end of an array in a loop like this: for (i = 0; i < cur->bc_nlevels; i++) { if (cur->bc_bufs[i]) Without the dirblklog test we try to allocate more memory than we could possibly hope for and loop forever: xfs_dabuf_map() nfsb = mp->m_dir_geo->fsbcount; irecs = kmem_zalloc(sizeof(irec) * nfsb, KM_SLEEP... As for the logbsize check, that's the convoluted one. If logbsize is specified at mount time, it's sanitized in xfs_parseargs; in particular it makes sure that it's not > XLOG_MAX_RECORD_BSIZE. If not specified at mount time, it comes from the superblock via sb_logsunit; this is limited to 256k at mkfs time as well; it's copied into m_logbsize in xfs_finish_flags(). However, if for some reason the on-disk value is corrupt and too large, nothing catches it. It's a circuitous path, but that size eventually finds its way to places that make the kernel very unhappy, leading to oopses in xlog_pack_data() because we use the size as an index into iclog->ic_data, but the array is not necessarily that big. Anyway - bounds checking when we read from disk is a good thing! Signed-off-by: Eric Sandeen -- V2: un-obfuscate the btree level tests, removing negated comparisons, per hch's suggestion. diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c index 4bffffe..eff3421 100644 --- a/fs/xfs/libxfs/xfs_alloc.c +++ b/fs/xfs/libxfs/xfs_alloc.c @@ -2209,6 +2209,10 @@ xfs_agf_verify( be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp))) return false; + if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS || + be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS) + return false; + /* * during growfs operations, the perag is not fully initialised, * so we can't use it for any useful checking. growfs ensures we can't diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index b62771f..d213a2e 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -2051,6 +2051,8 @@ xfs_agi_verify( if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum))) return false; + if (be32_to_cpu(agi->agi_level) > XFS_BTREE_MAXLEVELS) + return false; /* * during growfs operations, the perag is not fully initialised, * so we can't use it for any useful checking. growfs ensures we can't diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c index ad525a5..8426e5e 100644 --- a/fs/xfs/libxfs/xfs_sb.c +++ b/fs/xfs/libxfs/xfs_sb.c @@ -279,11 +279,13 @@ xfs_mount_validate_sb( sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG || sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG || sbp->sb_blocksize != (1 << sbp->sb_blocklog) || + sbp->sb_dirblklog > XFS_MAX_BLOCKSIZE_LOG || sbp->sb_inodesize < XFS_DINODE_MIN_SIZE || sbp->sb_inodesize > XFS_DINODE_MAX_SIZE || sbp->sb_inodelog < XFS_DINODE_MIN_LOG || sbp->sb_inodelog > XFS_DINODE_MAX_LOG || sbp->sb_inodesize != (1 << sbp->sb_inodelog) || + sbp->sb_logsunit > XLOG_MAX_RECORD_BSIZE || sbp->sb_inopblock != howmany(sbp->sb_blocksize,sbp->sb_inodesize) || (sbp->sb_blocklog - sbp->sb_inodelog != sbp->sb_inopblog) || (sbp->sb_rextsize * sbp->sb_blocksize > XFS_MAX_RTEXTSIZE) || From david@fromorbit.com Tue Aug 19 17:35:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F10947F3F for ; Tue, 19 Aug 2014 17:35:24 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6FF18AC001 for ; Tue, 19 Aug 2014 15:35:21 -0700 (PDT) X-ASG-Debug-ID: 1408487717-04cbb0548611d3f0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id tzaeqnCBbwSSH5Hm for ; Tue, 19 Aug 2014 15:35:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjULAA/Q81N5LDJ8PGdsb2JhbABagw2BKoIshQeoFwEBAQEBAQaefIV8AYELFwUBAQEBODaEAwEBBAEnExwjBQsIAw4KCSUPBSUDBxoTiDoHwRMXGIVkiVAHhEwFnEGMBwSMaCsvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 08:05:16 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJrzm-0006rM-9x; Wed, 20 Aug 2014 08:35:14 +1000 Date: Wed, 20 Aug 2014 08:35:14 +1000 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140819223514.GQ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> <20140812011743.GU20518@dastard> <53F3A480.6020000@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F3A480.6020000@fb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408487718 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8629 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 19, 2014 at 03:24:48PM -0400, Chris Mason wrote: > On 08/11/2014 09:17 PM, Dave Chinner wrote: > > On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: > >> > >> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > >> index 1f66779..023d575 100644 > >> --- a/fs/xfs/xfs_file.c > >> +++ b/fs/xfs/xfs_file.c > >> @@ -295,7 +295,8 @@ xfs_file_read_iter( > >> xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > >> return ret; > >> } > >> - truncate_pagecache_range(VFS_I(ip), pos, -1); > >> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > >> + pos >> PAGE_CACHE_SHIFT, -1); > >> } > >> xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > >> } > > > > I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire > > occasionally. It always fires immediately before some other ASSERT() > > they fires with a block map/page cache inconsistency. It usually > > fires in a test that runs fsx or fsstress. The fsx failures are new > > regressions caused by this patch. e.g. generic/263 hasn't failed for > > months on any of my systems and this patch causes it to fail > > reliably on my 1k block size test config. > > > > I'm going to assume at this point that this is uncovering some other > > existing bug, but it means I'm not going to push this fix until I > > understand what is actually happening here. It is possible that what > > I'm seeing is related to Brian's collapse range bug fixes, but until > > I applied this direct IO patch I'd never seen fsx throw ASSERTs in > > xfs_bmap_shift_extents().... > > > > Either way, more testing and understanding is needed. > > Do you have the output from xfs and the command line args it used? For > my device, it picks: > > -r 4096 -t 512 -w 512 -Z > > And for a blocksize 1024 test I did mkfs.xfs -b size=1024 I'm running: $ mkfs.xfs -f -m crc=1,finobt=1 -b size=1k /dev/vda $ mount /dev/vda /mnt/test $ ltp/fsx -o 128000 -l 500000 -r 4096 -t 512 -w 512 -Z -d /mnt/test/foo > But I can't trigger failures with or without the invalidate_inode_pages2 > change. I was hoping to trigger on 3.16, and then jump back to 3.10 + > my patch to see if the patch alone was at fault. I am seeing failures at operation 1192. Yesterday, I found a new class of bufferhead state coherency issues to do with EOF handling that are causing the problems. Basically, when the page cache marks a page dirty, the generic code marks all the buffers on the page dirty, even when they are beyond EOF. As a result, when we go to invalidate the page that spans EOF, it cannot be invalidated because there are dirty buffers on the page. Those buffers persist in that state because they are beyond EOF, have no blocks allocated to them, and cannot be written. And so when we do a direct IO that spans the current EOF, it now fails to invalidate that page and so triggers the warning. Worse is that it appears that these bufferheads can leak into the internal blocks into the file when the file is extended, leading to all sorts of other ASSERT failures (which I've been seeing for a while now). I've got the above fsx command to run for somewhere between 100k and 110k operations with the fixes I currently have, but I haven't found the cause of the dirty buffer beyond EOF state leaking into the interior of the file from extend operations yet. Once I have something that passes a few million fsx ops.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 19 17:38:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B59B97F3F for ; Tue, 19 Aug 2014 17:38:56 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 35878AC001 for ; Tue, 19 Aug 2014 15:38:56 -0700 (PDT) X-ASG-Debug-ID: 1408487930-04cb6c54ff1061b0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 2axraa0DcLC3zgCz for ; Tue, 19 Aug 2014 15:38:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjULACTR81N5LDJ8PGdsb2JhbABagw2BKoIshQeoFwEBAQEBAQaefIV8AYELFwUBAQEBODaEAwEBBAEnExwjBQsIAxgJJQ8FJQMHGhOIOgfBeBcYhWSJUAeETAWcQZhzKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 08:08:46 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJs3B-0006re-6j; Wed, 20 Aug 2014 08:38:45 +1000 Date: Wed, 20 Aug 2014 08:38:45 +1000 From: Dave Chinner To: Eric Sandeen Cc: Christoph Hellwig , Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: add a few more verifier tests Message-ID: <20140819223845.GR20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: add a few more verifier tests References: <53F2C103.8030607@redhat.com> <20140819181542.GA31177@infradead.org> <53F3A07B.9040402@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F3A07B.9040402@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408487930 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8629 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 19, 2014 at 02:07:39PM -0500, Eric Sandeen wrote: > On 8/19/14, 1:15 PM, Christoph Hellwig wrote: > >> Anyway - bounds checking when we read from disk is a good thing! > > > > Absolutelt! > > > > Looks good modulo a few nitpicks below. > > > > Reviewed-by: Christoph Hellwig > > > >> diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c > >> index 4bffffe..a4a9e0e 100644 > >> --- a/fs/xfs/libxfs/xfs_alloc.c > >> +++ b/fs/xfs/libxfs/xfs_alloc.c > >> @@ -2209,6 +2209,10 @@ xfs_agf_verify( > >> be32_to_cpu(agf->agf_flcount) <= XFS_AGFL_SIZE(mp))) > >> return false; > >> > >> + if (!(be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) <= XFS_BTREE_MAXLEVELS && > >> + be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) <= XFS_BTREE_MAXLEVELS)) > >> + return false; > > > > Maybe it's just me, but negated numeric comparisms always confuse the > > hell out of me, why not simply: > > > > if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]) > XFS_BTREE_MAXLEVELS) > > return false; > > if (be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > XFS_BTREE_MAXLEVELS) > > return false; > > > >> --- a/fs/xfs/libxfs/xfs_ialloc.c > >> +++ b/fs/xfs/libxfs/xfs_ialloc.c > >> @@ -2051,6 +2051,8 @@ xfs_agi_verify( > >> if (!XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum))) > >> return false; > >> > >> + if (!(be32_to_cpu(agi->agi_level) <= XFS_BTREE_MAXLEVELS)) > >> + return false; > > > > Same here. > > yeah; just following the style of the functions as they exist today... > > if (!(agf->agf_magicnum == cpu_to_be32(XFS_AGF_MAGIC) && > XFS_AGF_GOOD_VERSION(be32_to_cpu(agf->agf_versionnum)) && > be32_to_cpu(agf->agf_freeblks) <= be32_to_cpu(agf->agf_length) && > ... > > dunno. Don't care too much either way, but consistency and all that... I prefer the metho Christoph suggested - most of the verifiers use that "single check per if statement" pattern because it makes the checks being performed so much easier to read. > Maybe the "AGF_GOOD_VERSION" required the negation, and it all got lumped > together? Those should probably be cleaned up - they were done like that originally as a direct transcript from pre-existing code checks to simplify review, not because it was "nice" code. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 19 17:55:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 32CEE7F3F for ; Tue, 19 Aug 2014 17:55:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 04C818F8037 for ; Tue, 19 Aug 2014 15:55:11 -0700 (PDT) X-ASG-Debug-ID: 1408488909-04bdf0109aab6b0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 3lVzqQil8pcU1647 for ; Tue, 19 Aug 2014 15:55:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AuIJALLU81N5LDJ8PGdsb2JhbABAGoMNU1eCLIsnoWsMAQEBAQEBBp0hgVuFfAGBCRcFAQEBATg2hAMBAQQBOhwjBQsIAxgJJQ8FJQMHGhOIOgcONsFWGIVkiQdJB4RMBZVLhnaMC4pcHoFuKy8BgQaBSAEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 08:25:08 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJsJ1-0006tL-Qd; Wed, 20 Aug 2014 08:55:07 +1000 Date: Wed, 20 Aug 2014 08:55:07 +1000 From: Dave Chinner To: Thomas Klaube Cc: xfs@oss.sgi.com Subject: Re: xlog_write: reservation ran out. Need to up reservation Message-ID: <20140819225507.GS20518@dastard> X-ASG-Orig-Subj: Re: xlog_write: reservation ran out. Need to up reservation References: <159192779.3859815.1408461799560.JavaMail.zimbra@klaube.net> <362338960.3862279.1408462470243.JavaMail.zimbra@klaube.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <362338960.3862279.1408462470243.JavaMail.zimbra@klaube.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408488909 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8630 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Tue, Aug 19, 2014 at 05:34:30PM +0200, Thomas Klaube wrote: > Hi all, > > I am currently testing/benchmarking xfs on top of a bcache. When I run a heavy > IO workload (fio with 64 threads, read/write) on the device for ~30-45min I get Can you post the fio job configuration? > [ 9092.978268] XFS (bcache1): xlog_write: reservation summary: > [ 9092.978268] trans type = (null) (42) > [ 9092.978268] unit res = 18730384 bytes > [ 9092.978268] current res = -1640 bytes > [ 9092.978268] total reg = 512 bytes (o/flow = 1163749592 bytes) > [ 9092.978268] ophdrs = 655304 (ophdr space = 7863648 bytes) > [ 9092.978268] ophdr + reg = 1171613752 bytes > [ 9092.978268] num regions = 2 Oh, my: > [ 9092.978268] ophdr + reg = 1171613752 bytes Thats 1,171,613,752 bytes, or 1.1GB of journal data in that checkpoint. It's more than half the size of the journal, so it's violated fundamental constraints (i.e. no checkpoint shoul dbe larger than half the log) We should be committing the checkpoint once the queued metadata is beyond 12.5% of log space, or about 250MB in this case. The question is how did that get delayed for so long that we overran the push threshold by a factor of 3.5? Hmmmm - I wonder if bcache is causing some kind of kworker or workqueue starvation? I really need to see that fio job config and find out a whole lot more about the hardware and storage config you are running: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F > [ 9092.978268] > [ 9092.978272] XFS (bcache1): region[0]: LR header - 512 bytes > [ 9092.978273] XFS (bcache1): region[1]: commit - 0 bytes > [ 9092.978274] XFS (bcache1): xlog_write: reservation ran out. Need to up reservation > [ 9092.978303] XFS (bcache1): xfs_do_force_shutdown(0x2) called from line 2036 of file fs/xfs/xfs_log.c. Return address = 0xffffffffa04433c8 > [ 9092.979189] XFS (bcache1): Log I/O Error Detected. Shutting down filesystem > [ 9092.979210] XFS (bcache1): Please umount the filesystem and rectify the problem(s) > [ 9092.979238] XFS (bcache1): xfs_do_force_shutdown(0x2) called from line 1497 of file fs/xfs/xfs_log.c. Return address = 0xffffffffa0443b57 > [ 9093.183869] XFS (bcache1): xfs_log_force: error 5 returned. > [ 9093.489944] XFS (bcache1): xfs_log_force: error 5 returned. > > Kernel is 3.16.1 but this also happens with Ubuntu 3.13.0.34. > With the bcache the fio puts ~30k IOps on the filesystem. Which is not very much. I do that sort of thing all the time. > xfs_info: > meta-data=/dev/bcache1 isize=256 agcount=8, agsize=268435455 blks > = sectsz=512 attr=2 > data = bsize=4096 blocks=1949957886, imaxpct=5 > = sunit=0 swidth=0 blks > naming =version 2 bsize=4096 ascii-ci=0 > log =internal bsize=4096 blocks=521728, version=2 > = sectsz=512 sunit=0 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 > > umount/mount recovers the fs and the fs seems ok. > > I can reproduce this behavior. Is there anything I could try to debug > this? Run the workload directly on the SSD rather than with bcache. Use mkfs parameters to give you 8 ags and the same size log, and see if you get the same problem. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 19 19:16:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 474137F3F for ; Tue, 19 Aug 2014 19:16:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 33F198F8039 for ; Tue, 19 Aug 2014 17:16:28 -0700 (PDT) X-ASG-Debug-ID: 1408493786-04cbb0548811fce0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id lHt5VD69BrdZhczx for ; Tue, 19 Aug 2014 17:16:26 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjALAHjn81N5LDJ8PGdsb2JhbABagw2BKoIshQeoFwEBAQEBAQaefIV8gQkXBQEBAQE4NoREHCMYJDQFJQMHLYhBwj8YhWSIbhEBUB2ENgWPEo0vmHMrL4EPgUABAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 09:46:25 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJtZf-000738-BR; Wed, 20 Aug 2014 10:16:23 +1000 Date: Wed, 20 Aug 2014 10:16:23 +1000 From: Dave Chinner To: stable@vger.kernel.org Cc: xfs@oss.sgi.com, Fanael Linithien Subject: XFS fixes needed in stable kernels Message-ID: <20140820001623.GT20518@dastard> X-ASG-Orig-Subj: XFS fixes needed in stable kernels MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408493786 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8632 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Stable Kernel Gurus! The following XFs fixes need to be pushed back to stable kernels. The commits weren't all tagged in the recent 3.17-rc1 merge, so you're getting an email from me instead. The commits required from 3.17-rc1 are: 67dc288 xfs: ensure verifiers are attached to recovered buffers 5fd364f xfs: quotacheck leaves dquot buffers without verifiers ad3714b xfs: dquot recovery needs verifiers These are definitely needed for 3.16.y and 3.15.y, but aren't critical for 3.14 and 3.13 because it only affects configurations marked "experimetal: use at your own risk" and probably won't apply easily. They aren't necessary at all for older kernels than 3.13.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From prvs=33098c5cb7=clm@fb.com Tue Aug 19 20:54:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 972F77F3F for ; Tue, 19 Aug 2014 20:54:27 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 584208F8037 for ; Tue, 19 Aug 2014 18:54:27 -0700 (PDT) X-ASG-Debug-ID: 1408499665-04bdf010a1af890001-NocioJ Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id GKhaYPEcIQcYQDk2 for ; Tue, 19 Aug 2014 18:54:25 -0700 (PDT) X-Barracuda-Envelope-From: prvs=33098c5cb7=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] Received: from pps.filterd (m0004003 [127.0.0.1]) by mx0b-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s7K1rkFI003093; Tue, 19 Aug 2014 18:54:18 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : cc : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=VA2Gdl1kRRmrwXob03jJ+pMu59Sgfb9/yjKVxp8cji8=; b=gwSdoFsSuOBd8FY1OUGwieq62HzwWXcEq/udgfZ+omcNCKC9bXaRzZ+OU13FB3/lHgCA O5F28lx7xK/JPDYD/AK/rCIb0w+xXcXBQCLhi5S2jGsC2G1P54rhScYxQsRHB+nvaoFQ jOIgIg55+lBveqX+eumD57vC99x+btac2ac= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1nvbh3sewe-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Tue, 19 Aug 2014 18:54:17 -0700 Received: from [172.20.2.134] (192.168.57.29) by mail.TheFacebook.com (192.168.16.17) with Microsoft SMTP Server (TLS) id 14.3.195.1; Tue, 19 Aug 2014 18:54:15 -0700 Message-ID: <53F3FFC6.1070706@fb.com> Date: Tue, 19 Aug 2014 21:54:14 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: , Eric Sandeen Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> <20140812011743.GU20518@dastard> <53F3A480.6020000@fb.com> <20140819223514.GQ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT In-Reply-To: <20140819223514.GQ20518@dastard> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.57.29] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-19_05:2014-08-19,2014-08-19,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=1.88408177947963e-11 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=11180 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408200023 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1408499665 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/19/2014 06:35 PM, Dave Chinner wrote: > On Tue, Aug 19, 2014 at 03:24:48PM -0400, Chris Mason wrote: >> On 08/11/2014 09:17 PM, Dave Chinner wrote: >>> On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: >>>> >>>> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c >>>> index 1f66779..023d575 100644 >>>> --- a/fs/xfs/xfs_file.c >>>> +++ b/fs/xfs/xfs_file.c >>>> @@ -295,7 +295,8 @@ xfs_file_read_iter( >>>> xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); >>>> return ret; >>>> } >>>> - truncate_pagecache_range(VFS_I(ip), pos, -1); >>>> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, >>>> + pos >> PAGE_CACHE_SHIFT, -1); >>>> } >>>> xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); >>>> } >>> >>> I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire >>> occasionally. It always fires immediately before some other ASSERT() >>> they fires with a block map/page cache inconsistency. It usually >>> fires in a test that runs fsx or fsstress. The fsx failures are new >>> regressions caused by this patch. e.g. generic/263 hasn't failed for >>> months on any of my systems and this patch causes it to fail >>> reliably on my 1k block size test config. >>> >>> I'm going to assume at this point that this is uncovering some other >>> existing bug, but it means I'm not going to push this fix until I >>> understand what is actually happening here. It is possible that what >>> I'm seeing is related to Brian's collapse range bug fixes, but until >>> I applied this direct IO patch I'd never seen fsx throw ASSERTs in >>> xfs_bmap_shift_extents().... >>> >>> Either way, more testing and understanding is needed. >> >> Do you have the output from xfs and the command line args it used? For >> my device, it picks: >> >> -r 4096 -t 512 -w 512 -Z >> >> And for a blocksize 1024 test I did mkfs.xfs -b size=1024 > > I'm running: > > $ mkfs.xfs -f -m crc=1,finobt=1 -b size=1k /dev/vda > $ mount /dev/vda /mnt/test > $ ltp/fsx -o 128000 -l 500000 -r 4096 -t 512 -w 512 -Z -d /mnt/test/foo > >> But I can't trigger failures with or without the invalidate_inode_pages2 >> change. I was hoping to trigger on 3.16, and then jump back to 3.10 + >> my patch to see if the patch alone was at fault. > > I am seeing failures at operation 1192. > > Yesterday, I found a new class of bufferhead state coherency issues > to do with EOF handling that are causing the problems. Basically, > when the page cache marks a page dirty, the generic code marks all > the buffers on the page dirty, even when they are beyond EOF. > > As a result, when we go to invalidate the page that spans EOF, it > cannot be invalidated because there are dirty buffers on the page. > Those buffers persist in that state because they are beyond EOF, > have no blocks allocated to them, and cannot be written. And so when > we do a direct IO that spans the current EOF, it now fails to > invalidate that page and so triggers the warning. > > Worse is that it appears that these bufferheads can leak into the > internal blocks into the file when the file is extended, leading to > all sorts of other ASSERT failures (which I've been seeing for a > while now). > > I've got the above fsx command to run for somewhere between 100k and > 110k operations with the fixes I currently have, but I haven't found > the cause of the dirty buffer beyond EOF state leaking into the > interior of the file from extend operations yet. > > Once I have something that passes a few million fsx ops.... I have to admit, I'm not sure where this leaves us in terms of safely applying my patch to our 3.10 or mainline kernel... Failing to invalidate the page and zeroing the page are really both wrong. It feels like this zeroing and cleaning should be happening in truncate, but that's because I always blame truncate for fsx bugs. Totally unrelated, but I'll abuse this email thread anyway. With a pull to today's xfstests so I can send my shiny new test, ./check -g auto now only runs the btrfs tests and nothing else. I think its safe to assume this doesn't happen for you, any hints on what might make xfstests suddenly love btrfs this much? -chris From david@fromorbit.com Tue Aug 19 21:19:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1BB137F3F for ; Tue, 19 Aug 2014 21:19:59 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0983930408E for ; Tue, 19 Aug 2014 19:19:55 -0700 (PDT) X-ASG-Debug-ID: 1408501193-04cb6c54fe10b360001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id DXrPnFIRkr0m6xTu for ; Tue, 19 Aug 2014 19:19:53 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjULAOsE9FN5LDJ8PGdsb2JhbABagw2BKoIshQeoHAEBAQEBAQaefIV8AYELFwUBAQEBODaEAwEBBAEnExwjBQsIAw4KCSUPBSUDBxoTiDoHwjMXGIVkiG4RAVAHhEwFnEGMBwSMaCsvgQ+BQAEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 11:49:52 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJvV8-0007IP-3u; Wed, 20 Aug 2014 12:19:50 +1000 Date: Wed, 20 Aug 2014 12:19:50 +1000 From: Dave Chinner To: Chris Mason Cc: xfs@oss.sgi.com, Eric Sandeen Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140820021950.GU20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> <20140812011743.GU20518@dastard> <53F3A480.6020000@fb.com> <20140819223514.GQ20518@dastard> <53F3FFC6.1070706@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F3FFC6.1070706@fb.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408501193 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8636 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 19, 2014 at 09:54:14PM -0400, Chris Mason wrote: > On 08/19/2014 06:35 PM, Dave Chinner wrote: > > On Tue, Aug 19, 2014 at 03:24:48PM -0400, Chris Mason wrote: > >> On 08/11/2014 09:17 PM, Dave Chinner wrote: > >>> On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: > >>>> > >>>> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > >>>> index 1f66779..023d575 100644 > >>>> --- a/fs/xfs/xfs_file.c > >>>> +++ b/fs/xfs/xfs_file.c > >>>> @@ -295,7 +295,8 @@ xfs_file_read_iter( > >>>> xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > >>>> return ret; > >>>> } > >>>> - truncate_pagecache_range(VFS_I(ip), pos, -1); > >>>> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > >>>> + pos >> PAGE_CACHE_SHIFT, -1); > >>>> } > >>>> xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > >>>> } > >>> > >>> I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire > >>> occasionally. It always fires immediately before some other ASSERT() > >>> they fires with a block map/page cache inconsistency. It usually > >>> fires in a test that runs fsx or fsstress. The fsx failures are new > >>> regressions caused by this patch. e.g. generic/263 hasn't failed for > >>> months on any of my systems and this patch causes it to fail > >>> reliably on my 1k block size test config. > >>> > >>> I'm going to assume at this point that this is uncovering some other > >>> existing bug, but it means I'm not going to push this fix until I > >>> understand what is actually happening here. It is possible that what > >>> I'm seeing is related to Brian's collapse range bug fixes, but until > >>> I applied this direct IO patch I'd never seen fsx throw ASSERTs in > >>> xfs_bmap_shift_extents().... > >>> > >>> Either way, more testing and understanding is needed. > >> > >> Do you have the output from xfs and the command line args it used? For > >> my device, it picks: > >> > >> -r 4096 -t 512 -w 512 -Z > >> > >> And for a blocksize 1024 test I did mkfs.xfs -b size=1024 > > > > I'm running: > > > > $ mkfs.xfs -f -m crc=1,finobt=1 -b size=1k /dev/vda > > $ mount /dev/vda /mnt/test > > $ ltp/fsx -o 128000 -l 500000 -r 4096 -t 512 -w 512 -Z -d /mnt/test/foo > > > >> But I can't trigger failures with or without the invalidate_inode_pages2 > >> change. I was hoping to trigger on 3.16, and then jump back to 3.10 + > >> my patch to see if the patch alone was at fault. > > > > I am seeing failures at operation 1192. > > > > Yesterday, I found a new class of bufferhead state coherency issues > > to do with EOF handling that are causing the problems. Basically, > > when the page cache marks a page dirty, the generic code marks all > > the buffers on the page dirty, even when they are beyond EOF. > > > > As a result, when we go to invalidate the page that spans EOF, it > > cannot be invalidated because there are dirty buffers on the page. > > Those buffers persist in that state because they are beyond EOF, > > have no blocks allocated to them, and cannot be written. And so when > > we do a direct IO that spans the current EOF, it now fails to > > invalidate that page and so triggers the warning. > > > > Worse is that it appears that these bufferheads can leak into the > > internal blocks into the file when the file is extended, leading to > > all sorts of other ASSERT failures (which I've been seeing for a > > while now). > > > > I've got the above fsx command to run for somewhere between 100k and > > 110k operations with the fixes I currently have, but I haven't found > > the cause of the dirty buffer beyond EOF state leaking into the > > interior of the file from extend operations yet. > > > > Once I have something that passes a few million fsx ops.... > > I have to admit, I'm not sure where this leaves us in terms of safely > applying my patch to our 3.10 or mainline kernel... Failing to > invalidate the page and zeroing the page are really both wrong. Well, yes they are, and that's one of the reasons why I wanted to ensure we caught failures. As such, I think this invalidation bug goes back a *long time* because we've never, ever checked for invalidation failure before this patch. However, I think I've got a self-contained fix that can be backported for the invalidation problem now - it's well past 10 million fsx ops at this point with both read and write DIO invalidation fixes included. I'll post my series when I've done some more robust testing on it.... > It feels like this zeroing and cleaning should be happening in truncate, > but that's because I always blame truncate for fsx bugs. The problem is the other way around - buffers beyond EOF should never be marked dirty because they can never be written and hence never be marked clean in a consistent and sane manner. > Totally unrelated, but I'll abuse this email thread anyway. With a pull > to today's xfstests so I can send my shiny new test, ./check -g auto now > only runs the btrfs tests and nothing else. Works just fine for me. Did you reformat you test dev to xfs first? Do you have stray env vars set? What does ./setup tell you about your config? And maybe you can bisect - it was only ~20 commits in the last push. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 19 21:36:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C88407F3F for ; Tue, 19 Aug 2014 21:36:57 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9B1E38F8037 for ; Tue, 19 Aug 2014 19:36:54 -0700 (PDT) X-ASG-Debug-ID: 1408502211-04bdf0109ab0ae0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id D1gaIpIA4sKXhcUX for ; Tue, 19 Aug 2014 19:36:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjULAIAI9FN5LDJ8PGdsb2JhbABagw2BKoIshQeoHAEBAQEBAQaefIV8AYELFwUBAQEBODaEBAEFJxMcIxAIAw4KCSUPBSUDBxoTiEHCOBcYhWSJUAeETAWcQYwHBIxoKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 12:06:50 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJvlZ-0007KD-QD; Wed, 20 Aug 2014 12:36:49 +1000 Date: Wed, 20 Aug 2014 12:36:49 +1000 From: Dave Chinner To: Chris Mason Cc: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140820023649.GV20518@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> <20140812011743.GU20518@dastard> <53F3A480.6020000@fb.com> <20140819223514.GQ20518@dastard> <53F3FFC6.1070706@fb.com> <20140820021950.GU20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140820021950.GU20518@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408502211 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8636 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 20, 2014 at 12:19:50PM +1000, Dave Chinner wrote: > On Tue, Aug 19, 2014 at 09:54:14PM -0400, Chris Mason wrote: > > On 08/19/2014 06:35 PM, Dave Chinner wrote: > > > On Tue, Aug 19, 2014 at 03:24:48PM -0400, Chris Mason wrote: > > >> On 08/11/2014 09:17 PM, Dave Chinner wrote: > > >>> On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: > > >>>> > > >>>> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > > >>>> index 1f66779..023d575 100644 > > >>>> --- a/fs/xfs/xfs_file.c > > >>>> +++ b/fs/xfs/xfs_file.c > > >>>> @@ -295,7 +295,8 @@ xfs_file_read_iter( > > >>>> xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > > >>>> return ret; > > >>>> } > > >>>> - truncate_pagecache_range(VFS_I(ip), pos, -1); > > >>>> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > > >>>> + pos >> PAGE_CACHE_SHIFT, -1); > > >>>> } > > >>>> xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > > >>>> } > > >>> > > >>> I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire > > >>> occasionally. It always fires immediately before some other ASSERT() > > >>> they fires with a block map/page cache inconsistency. It usually > > >>> fires in a test that runs fsx or fsstress. The fsx failures are new > > >>> regressions caused by this patch. e.g. generic/263 hasn't failed for > > >>> months on any of my systems and this patch causes it to fail > > >>> reliably on my 1k block size test config. > > >>> > > >>> I'm going to assume at this point that this is uncovering some other > > >>> existing bug, but it means I'm not going to push this fix until I > > >>> understand what is actually happening here. It is possible that what > > >>> I'm seeing is related to Brian's collapse range bug fixes, but until > > >>> I applied this direct IO patch I'd never seen fsx throw ASSERTs in > > >>> xfs_bmap_shift_extents().... > > >>> > > >>> Either way, more testing and understanding is needed. > > >> > > >> Do you have the output from xfs and the command line args it used? For > > >> my device, it picks: > > >> > > >> -r 4096 -t 512 -w 512 -Z > > >> > > >> And for a blocksize 1024 test I did mkfs.xfs -b size=1024 > > > > > > I'm running: > > > > > > $ mkfs.xfs -f -m crc=1,finobt=1 -b size=1k /dev/vda > > > $ mount /dev/vda /mnt/test > > > $ ltp/fsx -o 128000 -l 500000 -r 4096 -t 512 -w 512 -Z -d /mnt/test/foo > > > > > >> But I can't trigger failures with or without the invalidate_inode_pages2 > > >> change. I was hoping to trigger on 3.16, and then jump back to 3.10 + > > >> my patch to see if the patch alone was at fault. > > > > > > I am seeing failures at operation 1192. > > > > > > Yesterday, I found a new class of bufferhead state coherency issues > > > to do with EOF handling that are causing the problems. Basically, > > > when the page cache marks a page dirty, the generic code marks all > > > the buffers on the page dirty, even when they are beyond EOF. > > > > > > As a result, when we go to invalidate the page that spans EOF, it > > > cannot be invalidated because there are dirty buffers on the page. > > > Those buffers persist in that state because they are beyond EOF, > > > have no blocks allocated to them, and cannot be written. And so when > > > we do a direct IO that spans the current EOF, it now fails to > > > invalidate that page and so triggers the warning. > > > > > > Worse is that it appears that these bufferheads can leak into the > > > internal blocks into the file when the file is extended, leading to > > > all sorts of other ASSERT failures (which I've been seeing for a > > > while now). > > > > > > I've got the above fsx command to run for somewhere between 100k and > > > 110k operations with the fixes I currently have, but I haven't found > > > the cause of the dirty buffer beyond EOF state leaking into the > > > interior of the file from extend operations yet. > > > > > > Once I have something that passes a few million fsx ops.... > > > > I have to admit, I'm not sure where this leaves us in terms of safely > > applying my patch to our 3.10 or mainline kernel... Failing to > > invalidate the page and zeroing the page are really both wrong. > > Well, yes they are, and that's one of the reasons why I wanted to > ensure we caught failures. As such, I think this invalidation bug > goes back a *long time* because we've never, ever checked for > invalidation failure before this patch. > > However, I think I've got a self-contained fix that can be > backported for the invalidation problem now - it's well past 10 > million fsx ops at this point with both read and write DIO > invalidation fixes included. I'll post my series when I've done > some more robust testing on it.... There's more issues. generic/247 on a 4k block size filesystem just triggered an invalidation failure on a direct IO write. That test is specifically mixing DIO overwrite with mmap overwrite on the same file, so there's clearly more issues in play here than I first thought. So, more debugging needed to determine if this is a result of the usual, currently unsolvable page fault vs DIO races... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 19 23:42:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 7FC937F3F for ; Tue, 19 Aug 2014 23:42:00 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5F4878F8037 for ; Tue, 19 Aug 2014 21:41:57 -0700 (PDT) X-ASG-Debug-ID: 1408509714-04cbb05488126f00001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id sClfwNnGun5B1Ts0 for ; Tue, 19 Aug 2014 21:41:54 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Al8LAPol9FN5LDJ8PGdsb2JhbABagw2BKoIshQeoHwEBAQEBAQaefIV8AYEKFwUBAQEBODaEAwEBBAEnExwjEAgDDgoJJQ8FJQMHGhOIOgfCQhcYhWSJUAeDL4EdBZxBjAgEjGsrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 20 Aug 2014 14:11:52 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XJxiY-0007a5-T0; Wed, 20 Aug 2014 14:41:50 +1000 Date: Wed, 20 Aug 2014 14:41:50 +1000 From: Dave Chinner To: Chris Mason Cc: Eric Sandeen , xfs@oss.sgi.com Subject: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT Message-ID: <20140820044150.GF26465@dastard> X-ASG-Orig-Subj: Re: [PATCH v2] xfs: don't zero partial page cache pages during O_DIRECT References: <53E4E03A.7050101@fb.com> <53E61A9C.4020807@fb.com> <20140812011743.GU20518@dastard> <53F3A480.6020000@fb.com> <20140819223514.GQ20518@dastard> <53F3FFC6.1070706@fb.com> <20140820021950.GU20518@dastard> <20140820023649.GV20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140820023649.GV20518@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1408509714 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8639 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 20, 2014 at 12:36:49PM +1000, Dave Chinner wrote: > On Wed, Aug 20, 2014 at 12:19:50PM +1000, Dave Chinner wrote: > > On Tue, Aug 19, 2014 at 09:54:14PM -0400, Chris Mason wrote: > > > On 08/19/2014 06:35 PM, Dave Chinner wrote: > > > > On Tue, Aug 19, 2014 at 03:24:48PM -0400, Chris Mason wrote: > > > >> On 08/11/2014 09:17 PM, Dave Chinner wrote: > > > >>> On Sat, Aug 09, 2014 at 08:57:00AM -0400, Chris Mason wrote: > > > >>>> > > > >>>> diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > > > >>>> index 1f66779..023d575 100644 > > > >>>> --- a/fs/xfs/xfs_file.c > > > >>>> +++ b/fs/xfs/xfs_file.c > > > >>>> @@ -295,7 +295,8 @@ xfs_file_read_iter( > > > >>>> xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > > > >>>> return ret; > > > >>>> } > > > >>>> - truncate_pagecache_range(VFS_I(ip), pos, -1); > > > >>>> + invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > > > >>>> + pos >> PAGE_CACHE_SHIFT, -1); > > > >>>> } > > > >>>> xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > > > >>>> } > > > >>> > > > >>> I added the WARN_ON_ONCE(ret) check to this and I am seeing it fire > > > >>> occasionally. It always fires immediately before some other ASSERT() > > > >>> they fires with a block map/page cache inconsistency. It usually > > > >>> fires in a test that runs fsx or fsstress. The fsx failures are new > > > >>> regressions caused by this patch. e.g. generic/263 hasn't failed for > > > >>> months on any of my systems and this patch causes it to fail > > > >>> reliably on my 1k block size test config. > > > >>> > > > >>> I'm going to assume at this point that this is uncovering some other > > > >>> existing bug, but it means I'm not going to push this fix until I > > > >>> understand what is actually happening here. It is possible that what > > > >>> I'm seeing is related to Brian's collapse range bug fixes, but until > > > >>> I applied this direct IO patch I'd never seen fsx throw ASSERTs in > > > >>> xfs_bmap_shift_extents().... > > > >>> > > > >>> Either way, more testing and understanding is needed. > > > >> > > > >> Do you have the output from xfs and the command line args it used? For > > > >> my device, it picks: > > > >> > > > >> -r 4096 -t 512 -w 512 -Z > > > >> > > > >> And for a blocksize 1024 test I did mkfs.xfs -b size=1024 > > > > > > > > I'm running: > > > > > > > > $ mkfs.xfs -f -m crc=1,finobt=1 -b size=1k /dev/vda > > > > $ mount /dev/vda /mnt/test > > > > $ ltp/fsx -o 128000 -l 500000 -r 4096 -t 512 -w 512 -Z -d /mnt/test/foo > > > > > > > >> But I can't trigger failures with or without the invalidate_inode_pages2 > > > >> change. I was hoping to trigger on 3.16, and then jump back to 3.10 + > > > >> my patch to see if the patch alone was at fault. > > > > > > > > I am seeing failures at operation 1192. > > > > > > > > Yesterday, I found a new class of bufferhead state coherency issues > > > > to do with EOF handling that are causing the problems. Basically, > > > > when the page cache marks a page dirty, the generic code marks all > > > > the buffers on the page dirty, even when they are beyond EOF. > > > > > > > > As a result, when we go to invalidate the page that spans EOF, it > > > > cannot be invalidated because there are dirty buffers on the page. > > > > Those buffers persist in that state because they are beyond EOF, > > > > have no blocks allocated to them, and cannot be written. And so when > > > > we do a direct IO that spans the current EOF, it now fails to > > > > invalidate that page and so triggers the warning. > > > > > > > > Worse is that it appears that these bufferheads can leak into the > > > > internal blocks into the file when the file is extended, leading to > > > > all sorts of other ASSERT failures (which I've been seeing for a > > > > while now). > > > > > > > > I've got the above fsx command to run for somewhere between 100k and > > > > 110k operations with the fixes I currently have, but I haven't found > > > > the cause of the dirty buffer beyond EOF state leaking into the > > > > interior of the file from extend operations yet. > > > > > > > > Once I have something that passes a few million fsx ops.... > > > > > > I have to admit, I'm not sure where this leaves us in terms of safely > > > applying my patch to our 3.10 or mainline kernel... Failing to > > > invalidate the page and zeroing the page are really both wrong. > > > > Well, yes they are, and that's one of the reasons why I wanted to > > ensure we caught failures. As such, I think this invalidation bug > > goes back a *long time* because we've never, ever checked for > > invalidation failure before this patch. > > > > However, I think I've got a self-contained fix that can be > > backported for the invalidation problem now - it's well past 10 > > million fsx ops at this point with both read and write DIO > > invalidation fixes included. I'll post my series when I've done > > some more robust testing on it.... > > There's more issues. generic/247 on a 4k block size filesystem just > triggered an invalidation failure on a direct IO write. That test is > specifically mixing DIO overwrite with mmap overwrite on the same > file, so there's clearly more issues in play here than I first > thought. > > So, more debugging needed to determine if this is a result of the > usual, currently unsolvable page fault vs DIO races... OK, it's almost certainly page fault vs writeback races in the DIO code. The page that is failing invalidation is uptodate, dirty and mapped, which indicates that it was dirtied after writeback occurred. So, just a demonstration of how mmap+DIO on the same file is just a bad idea, and having the kernel now issue a warning the first time this happens is probably a good idea. Cheers, Dave. -- Dave Chinner david@fromorbit.com From institutional@graacc.org.br Tue Aug 19 23:58:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DEC3C7F3F for ; Tue, 19 Aug 2014 23:58:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id B43A98F8040 for ; Tue, 19 Aug 2014 21:58:22 -0700 (PDT) X-ASG-Debug-ID: 1408510691-04cbb05487127440001-NocioJ Received: from dualtec-smtp-relay-1.dualtec.com.br (dualtec-smtp-relay-1b.static.dualtec.com.br [200.169.96.23]) by cuda.sgi.com with ESMTP id xl5xwHt4zEmWNW8U for ; Tue, 19 Aug 2014 21:58:12 -0700 (PDT) X-Barracuda-Envelope-From: institutional@graacc.org.br X-Barracuda-Apparent-Source-IP: 200.169.96.23 Received: from srv-iop-236.graacc.iop (200-144-94-206.epm.br [200.144.94.206]) by dualtec-smtp-relay-1.dualtec.com.br with SMTP; Wed, 20 Aug 2014 01:20:32 -0300 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CFBC2D.4C587C66" Subject: =?iso-8859-1?Q?Su_env=EDo_Entrega_pendiente?= Date: Wed, 20 Aug 2014 01:14:55 -0300 X-ASG-Orig-Subj: =?iso-8859-1?Q?Su_env=EDo_Entrega_pendiente?= Message-ID: <56D392280366AF43AAADFD61D5C54D3103F335FB@SRV-IOP-236.graacc.iop> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: =?iso-8859-1?Q?Su_env=EDo_Entrega_pendiente?= Thread-Index: Ac+8LUvQf3nIPspOQNmZ8ytkEOrvEQ== From: "GRAACC" X-Barracuda-Connect: dualtec-smtp-relay-1b.static.dualtec.com.br[200.169.96.23] X-Barracuda-Start-Time: 1408510691 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 1.23 X-Barracuda-Spam-Status: No, SCORE=1.23 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE, MISSING_HEADERS, THREAD_INDEX, THREAD_TOPIC, TO_CC_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8639 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 1.21 MISSING_HEADERS Missing To: header 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 TO_CC_NONE No To: or Cc: header To: undisclosed-recipients:; This is a multi-part message in MIME format. ------_=_NextPart_001_01CFBC2D.4C587C66 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Estimado cliente:=20 Esto es para informarle de que su env=EDo con n=FAmero de referencia = 2661428 que est=E1 experimentando la entrega a su destino (Direcci=F3n) = tiene encontrar una orden de suspensi=F3n por la Agencia Tributaria. 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Sr. Charles Deem
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------_=_NextPart_001_01CFBC2D.4C587C66-- From bfoster@redhat.com Wed Aug 20 11:56:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 61BDC7F4E for ; Wed, 20 Aug 2014 11:56:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4275E8F8039 for ; Wed, 20 Aug 2014 09:56:02 -0700 (PDT) X-ASG-Debug-ID: 1408553757-04bdf01097cdb20001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id LSg5kFbROTZ6TYoZ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 20 Aug 2014 09:55:57 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7KGtv3C020008 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 20 Aug 2014 12:55:57 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7KGtuxJ002695 for ; Wed, 20 Aug 2014 12:55:57 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 790EE12577F; Wed, 20 Aug 2014 12:55:55 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 0/2] xfs log recovery delay instrumentation Date: Wed, 20 Aug 2014 12:55:53 -0400 X-ASG-Orig-Subj: [PATCH 0/2] xfs log recovery delay instrumentation Message-Id: <1408553755-10255-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408553757 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Hi all, Here's a couple patches to add the log recovery delay instrumentation required for reproducing the log recovery buf race problem uncovered by Alex: http://oss.sgi.com/archives/xfs/2014-08/msg00155.html It looked easier to dump this tunable in /proc, but it seems like we want to move away from adding more things there. This series defines a generic sys/fs/xfs/debug location to serve a similar purpose and exports the log recovery delay tunable therein. The original problem is now easily reproduced with a 10s or so log recovery delay and the xfstests test I posted the other day: http://oss.sgi.com/archives/xfs/2014-08/msg00261.html One thing that comes to mind as I write this is whether it might be a good idea to only export this debug subdirectory for DEBUG enabled kernels. Thoughts? Any other thoughts, reviews or flames are appreciated as well. Brian Brian Foster (2): xfs: add debug sysfs attribute set xfs: export log_recovery_delay to delay mount time log recovery fs/xfs/xfs_globals.c | 4 +++ fs/xfs/xfs_log_recover.c | 12 ++++++++ fs/xfs/xfs_super.c | 15 ++++++++-- fs/xfs/xfs_sysctl.h | 5 ++++ fs/xfs/xfs_sysfs.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_sysfs.h | 1 + 6 files changed, 106 insertions(+), 2 deletions(-) -- 1.8.3.1 From bfoster@redhat.com Wed Aug 20 11:56:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 7DFC27F51 for ; Wed, 20 Aug 2014 11:56:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 50701304059 for ; Wed, 20 Aug 2014 09:56:02 -0700 (PDT) X-ASG-Debug-ID: 1408553757-04bdf0109acdb20001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id vXOjPBsJCqHTU147 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 20 Aug 2014 09:55:57 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7KGtvip017588 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 20 Aug 2014 12:55:57 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7KGtu6p012344 for ; Wed, 20 Aug 2014 12:55:56 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 913CC12577D; Wed, 20 Aug 2014 12:55:55 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 1/2] xfs: add debug sysfs attribute set Date: Wed, 20 Aug 2014 12:55:54 -0400 X-ASG-Orig-Subj: [PATCH 1/2] xfs: add debug sysfs attribute set Message-Id: <1408553755-10255-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1408553755-10255-1-git-send-email-bfoster@redhat.com> References: <1408553755-10255-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408553757 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Create a top-level debug directory for global debug sysfs attributes. This directory is added and removed on XFS module initialization and removal respectively. It typically resides at /sys/fs/xfs/debug. It is located at the top level of the xfs sysfs hierarchy as attributes might define global behavior or behavior that must be configured before an xfs mount is available (e.g., log recovery behavior). Define the global debug kobject that represents the debug sysfs directory and add generic attribute show/store helpers to support future attributes. No debug attributes are exported as of yet. Signed-off-by: Brian Foster --- fs/xfs/xfs_super.c | 15 +++++++++++++-- fs/xfs/xfs_sysfs.c | 40 ++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_sysfs.h | 1 + 3 files changed, 54 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index b194652..9b5eb02 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -47,6 +47,7 @@ #include "xfs_dinode.h" #include "xfs_filestream.h" #include "xfs_quota.h" +#include "xfs_sysfs.h" #include #include @@ -61,7 +62,9 @@ static const struct super_operations xfs_super_operations; static kmem_zone_t *xfs_ioend_zone; mempool_t *xfs_ioend_pool; -struct kset *xfs_kset; + +struct kset *xfs_kset; /* top-level xfs sysfs dir */ +static struct xfs_kobj xfs_dbg_kobj; /* global debug sysfs attrs */ #define MNTOPT_LOGBUFS "logbufs" /* number of XFS log buffers */ #define MNTOPT_LOGBSIZE "logbsize" /* size of XFS log buffers */ @@ -1768,10 +1771,15 @@ init_xfs_fs(void) goto out_sysctl_unregister;; } - error = xfs_qm_init(); + xfs_dbg_kobj.kobject.kset = xfs_kset; + error = xfs_sysfs_init(&xfs_dbg_kobj, &xfs_dbg_ktype, NULL, "debug"); if (error) goto out_kset_unregister; + error = xfs_qm_init(); + if (error) + goto out_remove_kobj; + error = register_filesystem(&xfs_fs_type); if (error) goto out_qm_exit; @@ -1779,6 +1787,8 @@ init_xfs_fs(void) out_qm_exit: xfs_qm_exit(); + out_remove_kobj: + xfs_sysfs_del(&xfs_dbg_kobj); out_kset_unregister: kset_unregister(xfs_kset); out_sysctl_unregister: @@ -1802,6 +1812,7 @@ exit_xfs_fs(void) { xfs_qm_exit(); unregister_filesystem(&xfs_fs_type); + xfs_sysfs_del(&xfs_dbg_kobj); kset_unregister(xfs_kset); xfs_sysctl_unregister(); xfs_cleanup_procfs(); diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index 9835139..dd31511 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -51,6 +51,46 @@ struct kobj_type xfs_mp_ktype = { .release = xfs_sysfs_release, }; +/* debug */ + +static struct attribute *xfs_dbg_attrs[] = { + NULL, +}; + +STATIC ssize_t +xfs_dbg_show( + struct kobject *kobject, + struct attribute *attr, + char *buf) +{ + struct xfs_sysfs_attr *xfs_attr = to_attr(attr); + + return xfs_attr->show ? xfs_attr->show(buf, NULL) : 0; +} + +STATIC ssize_t +xfs_dbg_store( + struct kobject *kobject, + struct attribute *attr, + const char *buf, + size_t count) +{ + struct xfs_sysfs_attr *xfs_attr = to_attr(attr); + + return xfs_attr->store ? xfs_attr->store(buf, count, NULL) : 0; +} + +static struct sysfs_ops xfs_dbg_ops = { + .show = xfs_dbg_show, + .store = xfs_dbg_store, +}; + +struct kobj_type xfs_dbg_ktype = { + .release = xfs_sysfs_release, + .sysfs_ops = &xfs_dbg_ops, + .default_attrs = xfs_dbg_attrs, +}; + /* xlog */ STATIC ssize_t diff --git a/fs/xfs/xfs_sysfs.h b/fs/xfs/xfs_sysfs.h index 54a2091..240eee3 100644 --- a/fs/xfs/xfs_sysfs.h +++ b/fs/xfs/xfs_sysfs.h @@ -20,6 +20,7 @@ #define __XFS_SYSFS_H__ extern struct kobj_type xfs_mp_ktype; /* xfs_mount */ +extern struct kobj_type xfs_dbg_ktype; /* debug */ extern struct kobj_type xfs_log_ktype; /* xlog */ static inline struct xfs_kobj * -- 1.8.3.1 From bfoster@redhat.com Wed Aug 20 11:56:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 6E9A67F50 for ; Wed, 20 Aug 2014 11:56:02 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 408968F8054 for ; Wed, 20 Aug 2014 09:56:02 -0700 (PDT) X-ASG-Debug-ID: 1408553757-04bdf010a0cdb30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id rIququCWqFSAoqLW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 20 Aug 2014 09:55:57 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7KGtv12013557 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 20 Aug 2014 12:55:57 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7KGtuoQ006544 for ; Wed, 20 Aug 2014 12:55:57 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 9D442125780; Wed, 20 Aug 2014 12:55:55 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 2/2] xfs: export log_recovery_delay to delay mount time log recovery Date: Wed, 20 Aug 2014 12:55:55 -0400 X-ASG-Orig-Subj: [PATCH 2/2] xfs: export log_recovery_delay to delay mount time log recovery Message-Id: <1408553755-10255-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1408553755-10255-1-git-send-email-bfoster@redhat.com> References: <1408553755-10255-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408553757 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS log recovery has been discovered to have race conditions with buffers when I/O errors occur. External tools are available to simulate I/O errors to XFS, but this alone is not sufficient for testing log recovery. XFS unconditionally resets the inactive region of the log prior to log recovery to avoid confusion over processing any partially written log records that might have been written before an unclean shutdown. Therefore, unconditional write I/O failures at mount time are caught by the reset sequence rather than log recovery and hinder the ability to test the latter. The device-mapper dm-flakey module uses an up/down timer to define a cycle for when to fail I/Os. Create a pre log recovery delay tunable that can be used to coordinate XFS log recovery with I/O errors simulated by dm-flakey. This facilitates coordination in userspace that allows the reset of stale log blocks to succeed and writes due to log recovery to fail. For example, define a dm-flakey instance with an uptime long enough to allow log reset to succeed and a log recovery delay long enough to allow the dm-flakey uptime to expire. The 'log_recovery_delay' sysfs tunable is exported under /sys/fs/xfs/debug. The value is exported in units of seconds and allows for a delay of up to 60 seconds. Note that this is for XFS debug and test instrumentation purposes only and should not be used by applications. No delay is enabled by default. Signed-off-by: Brian Foster --- fs/xfs/xfs_globals.c | 4 ++++ fs/xfs/xfs_log_recover.c | 12 ++++++++++++ fs/xfs/xfs_sysctl.h | 5 +++++ fs/xfs/xfs_sysfs.c | 31 +++++++++++++++++++++++++++++++ 4 files changed, 52 insertions(+) diff --git a/fs/xfs/xfs_globals.c b/fs/xfs/xfs_globals.c index 5399ef2..4d41b24 100644 --- a/fs/xfs/xfs_globals.c +++ b/fs/xfs/xfs_globals.c @@ -43,3 +43,7 @@ xfs_param_t xfs_params = { .fstrm_timer = { 1, 30*100, 3600*100}, .eofb_timer = { 1, 300, 3600*24}, }; + +struct xfs_globals xfs_globals = { + .log_recovery_delay = 0, /* no delay by default */ +}; diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1fd5787..176c4b3 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4509,6 +4509,18 @@ xlog_recover( return -EINVAL; } + /* + * Delay log recovery if the debug hook is set. This is debug + * instrumention to coordinate simulation of I/O failures with + * log recovery. + */ + if (xfs_globals.log_recovery_delay) { + xfs_notice(log->l_mp, + "Delaying log recovery for %d seconds.", + xfs_globals.log_recovery_delay); + msleep(xfs_globals.log_recovery_delay * 1000); + } + xfs_notice(log->l_mp, "Starting recovery (logdev: %s)", log->l_mp->m_logname ? log->l_mp->m_logname : "internal"); diff --git a/fs/xfs/xfs_sysctl.h b/fs/xfs/xfs_sysctl.h index bd8e157..ffef453 100644 --- a/fs/xfs/xfs_sysctl.h +++ b/fs/xfs/xfs_sysctl.h @@ -92,6 +92,11 @@ enum { extern xfs_param_t xfs_params; +struct xfs_globals { + int log_recovery_delay; /* log recovery delay (secs) */ +}; +extern struct xfs_globals xfs_globals; + #ifdef CONFIG_SYSCTL extern int xfs_sysctl_register(void); extern void xfs_sysctl_unregister(void); diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c index dd31511..f78ab31 100644 --- a/fs/xfs/xfs_sysfs.c +++ b/fs/xfs/xfs_sysfs.c @@ -53,7 +53,38 @@ struct kobj_type xfs_mp_ktype = { /* debug */ +STATIC ssize_t +log_recovery_delay_store( + const char *buf, + size_t count, + void *data) +{ + int ret; + int val; + + ret = kstrtoint(buf, 0, &val); + if (ret) + return ret; + + if (val < 0 || val > 60) + return -EINVAL; + + xfs_globals.log_recovery_delay = val; + + return count; +} + +STATIC ssize_t +log_recovery_delay_show( + char *buf, + void *data) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", xfs_globals.log_recovery_delay); +} +XFS_SYSFS_ATTR_RW(log_recovery_delay); + static struct attribute *xfs_dbg_attrs[] = { + ATTR_LIST(log_recovery_delay), NULL, }; -- 1.8.3.1 From sandeen@redhat.com Wed Aug 20 13:00:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8685A7F4E for ; Wed, 20 Aug 2014 13:00:15 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 152AEAC002 for ; Wed, 20 Aug 2014 11:00:11 -0700 (PDT) X-ASG-Debug-ID: 1408557606-04cbb05485146250001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZZyGOnjmB2AcaNBt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 20 Aug 2014 11:00:07 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7KI066B006440 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 20 Aug 2014 14:00:06 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7KI05Zj028059 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Wed, 20 Aug 2014 14:00:06 -0400 Message-ID: <53F4E229.3010607@redhat.com> Date: Wed, 20 Aug 2014 13:00:09 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH RESEND] xfsprogs: add supported file attributes to xfs.5 manpage Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: [PATCH RESEND] xfsprogs: add supported file attributes to xfs.5 manpage Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408557607 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The chattr(1) manpage now refers users to filesystem-specific manpages for details on supported attributes, so add those to xfs.5. Signed-off-by: Eric Sandeen --- I thought I had sent this already, but I guess not... (and now resending to xfs@ not linux-xfs@ in hopes that this one gets through...) diff --git a/man/man5/xfs.5 b/man/man5/xfs.5 index 5e47c4c..3214455 100644 --- a/man/man5/xfs.5 +++ b/man/man5/xfs.5 @@ -1,6 +1,6 @@ .TH xfs 5 .SH NAME -xfs \- layout and mount options for the XFS filesystem +xfs \- layout, mount options, and supported file attributes for the XFS filesystem .SH DESCRIPTION An XFS filesystem can reside on a regular disk partition or on a logical volume. @@ -302,7 +302,27 @@ namespace is on stable storage. This is useful in HA setups where failover must not result in clients seeing inconsistent namespace presentation during or after a failover event. +.SH FILE ATTRIBUTES +The XFS filesystem supports setting the following file +attributes on Linux systems using the +.BR chattr (1) +utility: +.sp +.BR a " - append only" +.sp +.BR A " - no atime updates" +.sp +.BR d " - no dump" +.sp +.BR i " - immutable" +.sp +.BR S " - synchronous updates" +.sp +For descriptions of these attribute flags, please refer to the +.BR chattr (1) +man page. .SH SEE ALSO +.BR chattr (1), .BR xfsctl (3), .BR mount (8), .BR mkfs.xfs (8), From tdm@sgi.com Wed Aug 20 13:54:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 26E7F7F4E for ; Wed, 20 Aug 2014 13:54:55 -0500 (CDT) Received: from estes.americas.sgi.com (estes.americas.sgi.com [128.162.236.10]) by relay3.corp.sgi.com (Postfix) with ESMTP id BA74EAC003 for ; Wed, 20 Aug 2014 11:54:51 -0700 (PDT) Received: from [128.162.232.11] (porter.americas.sgi.com [128.162.232.11]) by estes.americas.sgi.com (Postfix) with ESMTP id 886527002717 for ; Wed, 20 Aug 2014 13:54:51 -0500 (CDT) Message-ID: <53F4EEFB.9080905@sgi.com> Date: Wed, 20 Aug 2014 13:54:51 -0500 From: Troy McCorkell User-Agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.9.1.5) Gecko/20091204 Thunderbird/3.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: [PATCH RESEND] xfsprogs: add supported file attributes to xfs.5 manpage References: <53F4E229.3010607@redhat.com> In-Reply-To: <53F4E229.3010607@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 08/20/2014 01:00 PM, Eric Sandeen wrote: > The chattr(1) manpage now refers users to filesystem-specific > manpages for details on supported attributes, so add those to > xfs.5. > > Signed-off-by: Eric Sandeen > --- > > I thought I had sent this already, but I guess not... > > (and now resending to xfs@ not linux-xfs@ in hopes that this > one gets through...) > linux-xfs@ email address was converted to a spam trap several months back. The only email traffic on it was from spammers. -Troy > diff --git a/man/man5/xfs.5 b/man/man5/xfs.5 > index 5e47c4c..3214455 100644 > --- a/man/man5/xfs.5 > +++ b/man/man5/xfs.5 > @@ -1,6 +1,6 @@ > .TH xfs 5 > .SH NAME > -xfs \- layout and mount options for the XFS filesystem > +xfs \- layout, mount options, and supported file attributes for the XFS filesystem > .SH DESCRIPTION > An XFS filesystem can reside on a regular disk partition or on a > logical volume. > @@ -302,7 +302,27 @@ namespace is on stable storage. This is useful in HA setups > where failover must not result in clients seeing > inconsistent namespace presentation during or after a > failover event. > +.SH FILE ATTRIBUTES > +The XFS filesystem supports setting the following file > +attributes on Linux systems using the > +.BR chattr (1) > +utility: > +.sp > +.BR a " - append only" > +.sp > +.BR A " - no atime updates" > +.sp > +.BR d " - no dump" > +.sp > +.BR i " - immutable" > +.sp > +.BR S " - synchronous updates" > +.sp > +For descriptions of these attribute flags, please refer to the > +.BR chattr (1) > +man page. > .SH SEE ALSO > +.BR chattr (1), > .BR xfsctl (3), > .BR mount (8), > .BR mkfs.xfs (8), > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From sandeen@sandeen.net Wed Aug 20 15:26:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 97C917F4E for ; Wed, 20 Aug 2014 15:26:00 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 77A5C8F8035 for ; Wed, 20 Aug 2014 13:25:57 -0700 (PDT) X-ASG-Debug-ID: 1408566355-04bdf010a0da040001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id AGR6FSuk6C8DoXhB for ; Wed, 20 Aug 2014 13:25:55 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 6650C602D4F3; Wed, 20 Aug 2014 15:25:55 -0500 (CDT) Message-ID: <53F50457.8080502@sandeen.net> Date: Wed, 20 Aug 2014 15:25:59 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Troy McCorkell , xfs@oss.sgi.com Subject: Re: [PATCH RESEND] xfsprogs: add supported file attributes to xfs.5 manpage References: <53F4E229.3010607@redhat.com> <53F4EEFB.9080905@sgi.com> X-ASG-Orig-Subj: Re: [PATCH RESEND] xfsprogs: add supported file attributes to xfs.5 manpage In-Reply-To: <53F4EEFB.9080905@sgi.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408566355 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8662 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/20/14, 1:54 PM, Troy McCorkell wrote: > On 08/20/2014 01:00 PM, Eric Sandeen wrote: >> The chattr(1) manpage now refers users to filesystem-specific >> manpages for details on supported attributes, so add those to >> xfs.5. >> >> Signed-off-by: Eric Sandeen >> --- >> >> I thought I had sent this already, but I guess not... >> >> (and now resending to xfs@ not linux-xfs@ in hopes that this >> one gets through...) >> > linux-xfs@ email address was converted to a spam trap several months back. > The only email traffic on it was from spammers. whooops. And me! ;) Thanks, I remember now, need to purge it from my auto-filling book. -Eric (goes to look for anything else he sent there...) From david@fromorbit.com Wed Aug 20 18:47:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id AB07C7F4E for ; Wed, 20 Aug 2014 18:47:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2BAB7AC002 for ; Wed, 20 Aug 2014 16:47:36 -0700 (PDT) X-ASG-Debug-ID: 1408578452-04cb6c550013d0c0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id IL4eKUblxLyRBbwP for ; Wed, 20 Aug 2014 16:47:33 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmYQAGEy9VN5LDJ8PGdsb2JhbABagw2BKoIshQencgEBAQEGpHgBgQsXBQEBAQE4NoQEAQU6HCMQCAMYCSUPBSUDBxoTiEHCUhcYhWSJUAeETAWcQ5ZuHoFuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 21 Aug 2014 09:17:31 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKFbF-00023r-Bz; Thu, 21 Aug 2014 09:47:29 +1000 Date: Thu, 21 Aug 2014 09:47:29 +1000 From: Dave Chinner To: "Michael L. Semon" Cc: "xfs@oss.sgi.com" Subject: Re: xfsdump completes very prematurely in low RAM, commit found Message-ID: <20140820234729.GW20518@dastard> X-ASG-Orig-Subj: Re: xfsdump completes very prematurely in low RAM, commit found References: <53F15EEF.4090308@gmail.com> <20140818024114.GK20518@dastard> <53F1FBBC.8000903@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F1FBBC.8000903@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1408578452 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8670 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header On Mon, Aug 18, 2014 at 09:12:28AM -0400, Michael L. Semon wrote: > On 08/17/14 22:41, Dave Chinner wrote: > >On Sun, Aug 17, 2014 at 10:03:27PM -0400, Michael L. Semon wrote: > >>Hi! I had some phantom issues that are chasing me through this 3.17 > >>merge window period. While chasing those issues, I decided to do an > >>xfsdump of a v5/finobt XFS system rescued from PEBKAC issues. The > >>xfsdump completed rather prematurely, ending like this test case > >>output... > >> > >>xfsdump: dumping special file ino 4194523 mode 0x21b0 > >>xfsdump: dumping special file ino 4194524 mode 0x21b0 > >>xfsdump: dumping special file ino 4194525 mode 0x21b0 > >>xfsdump: dumping special file ino 4194526 mode 0x21b0 > >>xfsdump: dumping special file ino 4194527 mode 0x21b0 > >>xfsdump: ending media file > >>xfsdump: media file size 4512992 bytes > >>xfsdump: ending stream: 23 seconds elapsed > >>xfsdump: dump size (non-dir files) : 4452088 bytes > >>xfsdump: dump complete: 23 seconds elapsed > >>xfsdump: Dump Summary: > >>xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) > >>xfsdump: Dump Status: SUCCESS > >> > >>That looks fine for a lack of obvious error messages. However, it > >>should end like this: > >> > >>xfsdump: dumping regular file ino 13653551 offset 0 to offset 12154 (size 12154) > >>xfsdump: dumping regular file ino 13653555 offset 0 to offset 16554 (size 16554) > >>xfsdump: dumping regular file ino 13653556 offset 0 to offset 185 (size 185) > >>xfsdump: dumping regular file ino 13653557 offset 0 to offset 471 (size 471) > >>xfsdump: dumping special file ino 13653558 mode 0xa1ff > >>xfsdump: ending media file > >>xfsdump: media file size 1999127056 bytes > >>xfsdump: ending stream: 465 seconds elapsed > >>xfsdump: dump size (non-dir files) : 1963549104 bytes > >>xfsdump: dump complete: 465 seconds elapsed > >>xfsdump: Dump Summary: > >>xfsdump: stream 0 /mnt/xfstests-scratch/blah.0.dump OK (success) > >>xfsdump: Dump Status: SUCCESS > > > >What's the inode number progression of a successful dump at the > >point at which the incomplete dump ends? i.e. around inode 4194527? > >That number is one inode chunk short of 2^22, which implies that > >there is a failure or some kind moving from one AG to the next. > >The progrssion of inode numbers will tell me whether this is the > >case or not... > > It is this, run a bit longer to show xfsdump start to dump regular > files again: > > xfsdump: dumping special file ino 4194520 mode 0x21b0 > xfsdump: dumping special file ino 4194521 mode 0x21b0 > xfsdump: dumping special file ino 4194522 mode 0x21b0 > xfsdump: dumping special file ino 4194523 mode 0x21b0 > xfsdump: dumping special file ino 4194524 mode 0x21b0 > xfsdump: dumping special file ino 4194525 mode 0x21b0 > xfsdump: dumping special file ino 4194526 mode 0x21b0 > xfsdump: dumping special file ino 4194527 mode 0x21b0 > xfsdump: dumping special file ino 4194528 mode 0x21b0 > xfsdump: dumping special file ino 4194529 mode 0x21b0 > xfsdump: dumping special file ino 4194530 mode 0x21b0 > xfsdump: dumping special file ino 4194531 mode 0x21b0 > xfsdump: dumping special file ino 4194532 mode 0x21b0 > xfsdump: dumping special file ino 4194533 mode 0x21b0 > xfsdump: dumping special file ino 4194534 mode 0x21b0 > xfsdump: dumping special file ino 4194535 mode 0x21b0 > xfsdump: dumping special file ino 4194536 mode 0x21b0 So it's not the end of the AG that is causing problems. Can you get a tracepoint dump of the failing xfsdump run? i.e. $ trace-cmd record -e xfs\* ..... $ trace-cmd report > traces.txt and send me that traces.txt file (compress it first, please). Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@redhat.com Wed Aug 20 21:20:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 997937F4E for ; Wed, 20 Aug 2014 21:20:28 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 8617F30406A for ; Wed, 20 Aug 2014 19:20:25 -0700 (PDT) X-ASG-Debug-ID: 1408587623-04cbb0548715e650001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id jpz0750Qt9BCQb0W (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 20 Aug 2014 19:20:24 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7L2KMUI010436 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 20 Aug 2014 22:20:22 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7L2KGQV003206 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 20 Aug 2014 22:20:21 -0400 Message-ID: <53F55765.6030205@redhat.com> Date: Wed, 20 Aug 2014 21:20:21 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss , Jeff Liu Subject: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408587624 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_seek_hole & xfs_seek_data are remarkably similar; so much so that they could be combined, saving a fair bit of semi-complex code duplication. The following patch passes generic/285 and generic/286; is this worth doing, (maybe cleaning up a bit), or is it too convoluted & confusing? Signed-off-by: Eric Sandeen --- xfs_file.c | 174 +++++++++++++++++-------------------------------------------- 1 file changed, 50 insertions(+), 124 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 076b170..321dde6 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -964,7 +964,7 @@ xfs_vm_page_mkwrite( /* * This type is designed to indicate the type of offset we would like - * to search from page cache for either xfs_seek_data() or xfs_seek_hole(). + * to search from page cache for xfs_seek_hole_data(). */ enum { HOLE_OFF = 0, @@ -1021,7 +1021,7 @@ xfs_lookup_buffer_offset( /* * This routine is called to find out and return a data or hole offset * from the page cache for unwritten extents according to the desired - * type for xfs_seek_data() or xfs_seek_hole(). + * type for xfs_seek_hole_data(). * * The argument offset is used to tell where we start to search from the * page cache. Map is used to figure out the end points of the range to @@ -1181,9 +1181,10 @@ out: } STATIC loff_t -xfs_seek_data( +xfs_seek_hole_data( struct file *file, - loff_t start) + loff_t start, + int whence) { struct inode *inode = file->f_mapping->host; struct xfs_inode *ip = XFS_I(inode); @@ -1195,6 +1196,9 @@ xfs_seek_data( uint lock; int error; + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + lock = xfs_ilock_data_map_shared(ip); isize = i_size_read(inode); @@ -1209,6 +1213,7 @@ xfs_seek_data( */ fsbno = XFS_B_TO_FSBT(mp, start); end = XFS_B_TO_FSB(mp, isize); + for (;;) { struct xfs_bmbt_irec map[2]; int nmap = 2; @@ -1229,29 +1234,46 @@ xfs_seek_data( offset = max_t(loff_t, start, XFS_FSB_TO_B(mp, map[i].br_startoff)); - /* Landed in a data extent */ - if (map[i].br_startblock == DELAYSTARTBLOCK || - (map[i].br_state == XFS_EXT_NORM && - !isnullstartblock(map[i].br_startblock))) + /* Landed in the hole we wanted? */ + if (whence == SEEK_HOLE && + map[i].br_startblock == HOLESTARTBLOCK) + goto out; + + /* Landed in the data extent we wanted? */ + if (whence == SEEK_DATA && + (map[i].br_startblock == DELAYSTARTBLOCK || + (map[i].br_state == XFS_EXT_NORM && + !isnullstartblock(map[i].br_startblock)))) goto out; /* - * Landed in an unwritten extent, try to search data - * from page cache. + * Landed in an unwritten extent, try to search + * for hole or data from page cache. */ if (map[i].br_state == XFS_EXT_UNWRITTEN) { if (xfs_find_get_desired_pgoff(inode, &map[i], - DATA_OFF, &offset)) + whence == SEEK_HOLE ? HOLE_OFF : DATA_OFF, + &offset)) goto out; } } - /* - * map[0] is hole or its an unwritten extent but - * without data in page cache. Probably means that - * we are reading after EOF if nothing in map[1]. - */ if (nmap == 1) { + /* + * The single map didn't have what we were looking for. + * If we were looking for a hole, we are probably + * looking past EOF. We should fix offset to point + * to the end of the file (i.e., there is an implicit + * hole at the end of any file). + */ + if (whence == SEEK_HOLE) { + offset = isize; + break; + } + /* + * If we were looking for data, it's nowhere to be found + */ + ASSERT(whence == SEEK_DATA); error = -ENXIO; goto out_unlock; } @@ -1260,125 +1282,30 @@ xfs_seek_data( /* * Nothing was found, proceed to the next round of search - * if reading offset not beyond or hit EOF. + * if the next reading offset is not at or beyond EOF. */ fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; start = XFS_FSB_TO_B(mp, fsbno); if (start >= isize) { + if (whence == SEEK_HOLE) { + offset = isize; + break; + } + ASSERT(whence == SEEK_DATA); error = -ENXIO; goto out_unlock; } } out: - offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); - -out_unlock: - xfs_iunlock(ip, lock); - - if (error) - return error; - return offset; -} - -STATIC loff_t -xfs_seek_hole( - struct file *file, - loff_t start) -{ - struct inode *inode = file->f_mapping->host; - struct xfs_inode *ip = XFS_I(inode); - struct xfs_mount *mp = ip->i_mount; - loff_t uninitialized_var(offset); - xfs_fsize_t isize; - xfs_fileoff_t fsbno; - xfs_filblks_t end; - uint lock; - int error; - - if (XFS_FORCED_SHUTDOWN(mp)) - return -EIO; - - lock = xfs_ilock_data_map_shared(ip); - - isize = i_size_read(inode); - if (start >= isize) { - error = -ENXIO; - goto out_unlock; - } - - fsbno = XFS_B_TO_FSBT(mp, start); - end = XFS_B_TO_FSB(mp, isize); - - for (;;) { - struct xfs_bmbt_irec map[2]; - int nmap = 2; - unsigned int i; - - error = xfs_bmapi_read(ip, fsbno, end - fsbno, map, &nmap, - XFS_BMAPI_ENTIRE); - if (error) - goto out_unlock; - - /* No extents at given offset, must be beyond EOF */ - if (nmap == 0) { - error = -ENXIO; - goto out_unlock; - } - - for (i = 0; i < nmap; i++) { - offset = max_t(loff_t, start, - XFS_FSB_TO_B(mp, map[i].br_startoff)); - - /* Landed in a hole */ - if (map[i].br_startblock == HOLESTARTBLOCK) - goto out; - - /* - * Landed in an unwritten extent, try to search hole - * from page cache. - */ - if (map[i].br_state == XFS_EXT_UNWRITTEN) { - if (xfs_find_get_desired_pgoff(inode, &map[i], - HOLE_OFF, &offset)) - goto out; - } - } - - /* - * map[0] contains data or its unwritten but contains - * data in page cache, probably means that we are - * reading after EOF. We should fix offset to point - * to the end of the file(i.e., there is an implicit - * hole at the end of any file). - */ - if (nmap == 1) { - offset = isize; - break; - } - - ASSERT(i > 1); - - /* - * Both mappings contains data, proceed to the next round of - * search if the current reading offset not beyond or hit EOF. - */ - fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; - start = XFS_FSB_TO_B(mp, fsbno); - if (start >= isize) { - offset = isize; - break; - } - } - -out: /* - * At this point, we must have found a hole. However, the returned + * If at this point we have found the hole we wanted, the returned * offset may be bigger than the file size as it may be aligned to - * page boundary for unwritten extents, we need to deal with this + * page boundary for unwritten extents. We need to deal with this * situation in particular. */ - offset = min_t(loff_t, offset, isize); + if (whence == SEEK_HOLE) + offset = min_t(loff_t, offset, isize); offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); out_unlock: @@ -1400,10 +1327,9 @@ xfs_file_llseek( case SEEK_CUR: case SEEK_SET: return generic_file_llseek(file, offset, origin); - case SEEK_DATA: - return xfs_seek_data(file, offset); case SEEK_HOLE: - return xfs_seek_hole(file, offset); + case SEEK_DATA: + return xfs_seek_hole_data(file, offset, origin); default: return -EINVAL; } From sandeen@redhat.com Wed Aug 20 22:18:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 944257F4E for ; Wed, 20 Aug 2014 22:18:56 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 81FB28F8039 for ; Wed, 20 Aug 2014 20:18:53 -0700 (PDT) X-ASG-Debug-ID: 1408591129-04cb6c5500146c60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 22gMnXL8i05HSPmc (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 20 Aug 2014 20:18:49 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7L3ImdB032493 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Wed, 20 Aug 2014 23:18:48 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7L3IlO1025050 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Wed, 20 Aug 2014 23:18:48 -0400 Message-ID: <53F5651C.8030206@redhat.com> Date: Wed, 20 Aug 2014 22:18:52 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfs: deduplicate xlog_do_recovery_pass() Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: [PATCH] xfs: deduplicate xlog_do_recovery_pass() Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408591129 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 In xlog_do_recovery_pass(), there are 2 distinct cases: non-wrapped and wrapped log recovery. If we find a wrapped log, we recover around the end of the log, and then handle the rest of recovery exactly as in the non-wrapped case - using exactly the same (duplicated) code. Rather than having the same code in both cases, we can get the wrapped portion out of the way first if needed, and then recover the non-wrapped portion of the log. There should be no functional change here, just code reorganization & deduplication. The patch looks a bit bigger than it really is; the last hunk is whitespace changes (un-indenting). Tested with xfstests "check -g log" on a stock configuration. Signed-off-by: Eric Sandeen --- xfs_log_recover.c | 81 ++++++++++++++++++------------------------------------ 1 file changed, 27 insertions(+), 54 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1fd5787..08d3569 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -4132,41 +4132,13 @@ xlog_do_recovery_pass( } memset(rhash, 0, sizeof(rhash)); - if (tail_blk <= head_blk) { - for (blk_no = tail_blk; blk_no < head_blk; ) { - error = xlog_bread(log, blk_no, hblks, hbp, &offset); - if (error) - goto bread_err2; - - rhead = (xlog_rec_header_t *)offset; - error = xlog_valid_rec_header(log, rhead, blk_no); - if (error) - goto bread_err2; - - /* blocks in data section */ - bblks = (int)BTOBB(be32_to_cpu(rhead->h_len)); - error = xlog_bread(log, blk_no + hblks, bblks, dbp, - &offset); - if (error) - goto bread_err2; - - error = xlog_unpack_data(rhead, offset, log); - if (error) - goto bread_err2; - - error = xlog_recover_process_data(log, - rhash, rhead, offset, pass); - if (error) - goto bread_err2; - blk_no += bblks + hblks; - } - } else { + blk_no = tail_blk; + if (tail_blk > head_blk) { /* * Perform recovery around the end of the physical log. * When the head is not on the same cycle number as the tail, - * we can't do a sequential recovery as above. + * we can't do a sequential recovery. */ - blk_no = tail_blk; while (blk_no < log->l_logBBsize) { /* * Check for header wrapping around physical end-of-log @@ -4280,34 +4252,35 @@ xlog_do_recovery_pass( ASSERT(blk_no >= log->l_logBBsize); blk_no -= log->l_logBBsize; + } - /* read first part of physical log */ - while (blk_no < head_blk) { - error = xlog_bread(log, blk_no, hblks, hbp, &offset); - if (error) - goto bread_err2; + /* read first part of physical log */ + while (blk_no < head_blk) { + error = xlog_bread(log, blk_no, hblks, hbp, &offset); + if (error) + goto bread_err2; - rhead = (xlog_rec_header_t *)offset; - error = xlog_valid_rec_header(log, rhead, blk_no); - if (error) - goto bread_err2; + rhead = (xlog_rec_header_t *)offset; + error = xlog_valid_rec_header(log, rhead, blk_no); + if (error) + goto bread_err2; - bblks = (int)BTOBB(be32_to_cpu(rhead->h_len)); - error = xlog_bread(log, blk_no+hblks, bblks, dbp, - &offset); - if (error) - goto bread_err2; + /* blocks in data section */ + bblks = (int)BTOBB(be32_to_cpu(rhead->h_len)); + error = xlog_bread(log, blk_no+hblks, bblks, dbp, + &offset); + if (error) + goto bread_err2; - error = xlog_unpack_data(rhead, offset, log); - if (error) - goto bread_err2; + error = xlog_unpack_data(rhead, offset, log); + if (error) + goto bread_err2; - error = xlog_recover_process_data(log, rhash, - rhead, offset, pass); - if (error) - goto bread_err2; - blk_no += bblks + hblks; - } + error = xlog_recover_process_data(log, rhash, + rhead, offset, pass); + if (error) + goto bread_err2; + blk_no += bblks + hblks; } bread_err2: From sandeen@sandeen.net Wed Aug 20 23:36:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 072F67F50 for ; Wed, 20 Aug 2014 23:36:44 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E9EBD304043 for ; Wed, 20 Aug 2014 21:36:40 -0700 (PDT) X-ASG-Debug-ID: 1408595795-04cbb054881637a0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id TPTDB4X1MBEm8uh8 for ; Wed, 20 Aug 2014 21:36:36 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id B5BCE602D74F; Wed, 20 Aug 2014 23:36:35 -0500 (CDT) Message-ID: <53F57758.9070007@sandeen.net> Date: Wed, 20 Aug 2014 23:36:40 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() References: <53F5651C.8030206@redhat.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() In-Reply-To: <53F5651C.8030206@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408595795 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/20/14, 10:18 PM, Eric Sandeen wrote: > In xlog_do_recovery_pass(), there are 2 distinct cases: > non-wrapped and wrapped log recovery. > > If we find a wrapped log, we recover around the end > of the log, and then handle the rest of recovery > exactly as in the non-wrapped case - using exactly the same > (duplicated) code. > > Rather than having the same code in both cases, we can > get the wrapped portion out of the way first if needed, > and then recover the non-wrapped portion of the log. > > There should be no functional change here, just code > reorganization & deduplication. > > The patch looks a bit bigger than it really is; the last > hunk is whitespace changes (un-indenting). > > Tested with xfstests "check -g log" on a stock configuration. which didn't actually hit any log wraps. Does xfstests really not cover wrapped log recovery? anyway, something like this on a small log: [root@bp-05 xfstests]# while true; do mount /dev/sdc5 /mnt/scratch; ltp/fsstress -n 500 -d /mnt/scratch; src/godown -f /mnt/scratch; umount /mnt/scratch; done hit plenty of log wraps w/ no problem. -Eric From david@fromorbit.com Wed Aug 20 23:49:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 695427F4E for ; Wed, 20 Aug 2014 23:49:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 5757B8F8039 for ; Wed, 20 Aug 2014 21:49:42 -0700 (PDT) X-ASG-Debug-ID: 1408596579-04cbb05485163bd0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id AvyEuvbr28Xi8i1B for ; Wed, 20 Aug 2014 21:49:40 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmYQAA169VN5LDJ8PGdsb2JhbABagw2BKoIshQencwEBAQEGpHgBgQ4XBQEBAQE4NoQEAQU6HCMQCAMYCSUPBSUDBxoTiEHBWhcYhWSJUAeETAWcQ4wPjGsrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:19:16 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKKJH-0002ey-3P; Thu, 21 Aug 2014 14:49:15 +1000 Date: Thu, 21 Aug 2014 14:49:15 +1000 From: Dave Chinner To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() Message-ID: <20140821044915.GX20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() References: <53F5651C.8030206@redhat.com> <53F57758.9070007@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F57758.9070007@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408596579 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 20, 2014 at 11:36:40PM -0500, Eric Sandeen wrote: > On 8/20/14, 10:18 PM, Eric Sandeen wrote: > > In xlog_do_recovery_pass(), there are 2 distinct cases: > > non-wrapped and wrapped log recovery. > > > > If we find a wrapped log, we recover around the end > > of the log, and then handle the rest of recovery > > exactly as in the non-wrapped case - using exactly the same > > (duplicated) code. > > > > Rather than having the same code in both cases, we can > > get the wrapped portion out of the way first if needed, > > and then recover the non-wrapped portion of the log. > > > > There should be no functional change here, just code > > reorganization & deduplication. > > > > The patch looks a bit bigger than it really is; the last > > hunk is whitespace changes (un-indenting). > > > > Tested with xfstests "check -g log" on a stock configuration. > > which didn't actually hit any log wraps. Does xfstests > really not cover wrapped log recovery? anyway, something like this > on a small log: xfs/016 Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Wed Aug 20 23:58:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 102877F4E for ; Wed, 20 Aug 2014 23:58:52 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DBF8E8F8037 for ; Wed, 20 Aug 2014 21:58:51 -0700 (PDT) X-ASG-Debug-ID: 1408597130-04cb6c54ff14a6f0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id Ita2Z71yL7mXXXRG for ; Wed, 20 Aug 2014 21:58:50 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id B525A602D74F; Wed, 20 Aug 2014 23:58:50 -0500 (CDT) Message-ID: <53F57C8F.6060909@sandeen.net> Date: Wed, 20 Aug 2014 23:58:55 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Dave Chinner CC: Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() References: <53F5651C.8030206@redhat.com> <53F57758.9070007@sandeen.net> <20140821044915.GX20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() In-Reply-To: <20140821044915.GX20518@dastard> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408597130 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/20/14, 11:49 PM, Dave Chinner wrote: > On Wed, Aug 20, 2014 at 11:36:40PM -0500, Eric Sandeen wrote: >> On 8/20/14, 10:18 PM, Eric Sandeen wrote: >>> In xlog_do_recovery_pass(), there are 2 distinct cases: >>> non-wrapped and wrapped log recovery. >>> >>> If we find a wrapped log, we recover around the end >>> of the log, and then handle the rest of recovery >>> exactly as in the non-wrapped case - using exactly the same >>> (duplicated) code. >>> >>> Rather than having the same code in both cases, we can >>> get the wrapped portion out of the way first if needed, >>> and then recover the non-wrapped portion of the log. >>> >>> There should be no functional change here, just code >>> reorganization & deduplication. >>> >>> The patch looks a bit bigger than it really is; the last >>> hunk is whitespace changes (un-indenting). >>> >>> Tested with xfstests "check -g log" on a stock configuration. >> >> which didn't actually hit any log wraps. Does xfstests >> really not cover wrapped log recovery? anyway, something like this >> on a small log: > > xfs/016 AFAICT that doesn't ever run recovery... -Eric From dave@fromorbit.com Thu Aug 21 00:09:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 57DCB7F4E for ; Thu, 21 Aug 2014 00:09:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3EC39304066 for ; Wed, 20 Aug 2014 22:09:36 -0700 (PDT) X-ASG-Debug-ID: 1408597774-04cb6c54ff14ab70001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id NdJwavGnuHnsWBgw for ; Wed, 20 Aug 2014 22:09:35 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgEQAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoczp3MBAQEBBqR4gQ8XBQEBAQE4NoQEAQUnLyMQCBgxOQMHFBmIQcF0hXyIbFkohDYFqFKMaysvgQaBSQEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i4-ML; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003lY-L0; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 2/6] xfs: don't zero partial page cache pages during O_DIRECT writes Date: Thu, 21 Aug 2014 15:09:10 +1000 X-ASG-Orig-Subj: [PATCH 2/6] xfs: don't zero partial page cache pages during O_DIRECT writes Message-Id: <1408597754-13526-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408597754-13526-1-git-send-email-david@fromorbit.com> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597774 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Chris Mason xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. [dchinner: catch error and warn if it fails. Comment.] cc: stable@vger.kernel.org Signed-off-by: Chris Mason Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 076b170..827cfb2 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -296,7 +296,16 @@ xfs_file_read_iter( xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); return ret; } - truncate_pagecache_range(VFS_I(ip), pos, -1); + + /* + * Invalidate whole pages. This can return an error if + * we fail to invalidate a page, but this should never + * happen on XFS. Warn if it does fail. + */ + ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); + WARN_ON_ONCE(ret); + ret = 0; } xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); } -- 2.0.0 From dave@fromorbit.com Thu Aug 21 00:09:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4729A7F4E for ; Thu, 21 Aug 2014 00:09:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 27556304066 for ; Wed, 20 Aug 2014 22:09:37 -0700 (PDT) X-ASG-Debug-ID: 1408597774-04cb6c54ff14ab70002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id vHD65xntNc1jUSBH for ; Wed, 20 Aug 2014 22:09:36 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgEQAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoczp3MBAQEBBqR4gQ8XBQEBAQE4NoQEAQUnLyMQCBgxOQMHFBmIQa4Yk1yFfIlFKIQ2BahSjGsrL4EGJIElAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i8-Oc; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003ls-Ne; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 6/6] xfs: xfs_file_collapse_range is delalloc challenged Date: Thu, 21 Aug 2014 15:09:14 +1000 X-ASG-Orig-Subj: [PATCH 6/6] xfs: xfs_file_collapse_range is delalloc challenged Message-Id: <1408597754-13526-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408597754-13526-1-git-send-email-david@fromorbit.com> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597776 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner If we have delalloc extents on a file before we run a collapse range opertaion, we sync the range that we are going to collapse to convert delalloc extents in that region to real extents to simplify the shift operation. However, the shift operation then assumes that the extent list is not going to change as it iterates over the extent list moving things about. Unfortunately, this isn't true because we can't hold the ILOCK over all the operations. We can prevent new IO from modifying the extent list by holding the IOLOCK, but that doesn't prevent writeback from running.... And when writeback runs, it can convert delalloc extents is the range of the file prior to the region being collapsed, and this changes the indexes of all the extents in the file. That causes the collapse range operation to Go Bad. The right fix is to rewrite the extent shift operation not to be dependent on the extent list not changing across the entire operation, but this is a fairly significant piece of work to do. Hence, as a short-term workaround for the problem, sync the entire file before starting a collapse operation to remove all delalloc ranges from the file and so avoid the problem of concurrent writeback changing the extent list. Diagnosed-and-Reported-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index c53cc03..035041d 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1460,6 +1460,19 @@ xfs_collapse_file_space( start_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); + /* + * writeback the entire file to prevent concurrent writeback of ranges + * outside the collapsing region from changing the extent list. + * + * XXX: This is a temporary fix until the extent shift loop below is + * converted to use offsets and lookups within the ILOCK rather than + * carrying around the index into the extent list for the next + * iteration. + */ + error = filemap_write_and_wait(VFS_I(ip)->i_mapping); + if (error) + return error; + error = xfs_free_file_space(ip, offset, len); if (error) return error; -- 2.0.0 From dave@fromorbit.com Thu Aug 21 00:09:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1714A7F58 for ; Thu, 21 Aug 2014 00:09:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9A348AC001 for ; Wed, 20 Aug 2014 22:09:39 -0700 (PDT) X-ASG-Debug-ID: 1408597774-04cb6c54ff14ab70003-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id KFhsiygTpf8QbGBn for ; Wed, 20 Aug 2014 22:09:37 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjoQAIJ+9VN5LDJ8PGdsb2JhbABagw2IXadzAQEBAQagVYUyFwUBAQEBODaEYCMYgQIDB4huwXSFfIhtgQCENgWzE4IqK4E1JIElAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i2-Kr; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003lQ-Ja; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 0/6] xfs: direct IO invalidation and related fixes Date: Thu, 21 Aug 2014 15:09:08 +1000 X-ASG-Orig-Subj: [PATCH 0/6] xfs: direct IO invalidation and related fixes Message-Id: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597777 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, This patch set started when I was testing Chris Mason's direct IO read invalidation fix (patch 2 of the series). I hit a problem testing it on a 1k block size filesystem, and that opened a can of bugs. Luckily, the can of bugs fell into the fire, and so the bug hunt wasn't long and drawn out. In the end, the class of bugs that was uncovered is prevented from occurring by the first patch (hmmm, not sure the title is accurate anymore) which then means it is safe to fix the invalidation bugs in the direct Io code (Chris fixed read, I fixed write). With these issues fixed, we can trim the range of invalidation to just that of the direct IO in progress and that finally works without causing random regressions. This then left fsx tripping over issues with collapse range calls that Brian had already found the cause of, so this series adds his patch to change the inode logging and my temporary workaround of flushing the entire file before running the collapse range operation. With these 6 patches, the troublesome fsx configuration from generic/263 goes from assert failing on the 1192nd operation to running for over 60 million operations before tripping over another collapse range issue. This was repeated on multiple test machines, with a ramdisk based test getting 61,350,000 million ops, a 2p VM getting 63,700,000 ops and a 1p VM getting 65,450,000 million ops before failing. The series does result in generic/247 now occasionally tripping an invalidation failure, but this is intentionally causing direct Io writes and mmap writes to race and so this is an expected failure when the code is working correctly. i.e. page faults cannot be synchronised against any other IO operation. Hence I think this patch series fixes the root cause of another long standing bufferhead coherency issue that we'd otherwise covered up. Please test and review - I want to send this patchset to Linux for 3.17-rc3 if possible... -Dave. From dave@fromorbit.com Thu Aug 21 00:09:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 483A97F59 for ; Thu, 21 Aug 2014 00:09:40 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id D8C61AC002 for ; Wed, 20 Aug 2014 22:09:39 -0700 (PDT) X-ASG-Debug-ID: 1408597777-04bdf010a1f0ce0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id jtfKyecXnwClUNNJ for ; Wed, 20 Aug 2014 22:09:38 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4PAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoczp3MBAQEBBqYHFwUBAQEBODaEBAEFJy8jEAgYMTkDBxQZiEHBdIV8jiMFszEegW4rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i3-LO; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003lT-KT; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Date: Thu, 21 Aug 2014 15:09:09 +1000 X-ASG-Orig-Subj: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-Id: <1408597754-13526-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408597754-13526-1-git-send-email-david@fromorbit.com> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597778 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner generic/263 is failing fsx at this point with a page spanning EOF that cannot be invalidated. The operations are: 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO write attempts to invalidate the cached page over this range, it fails with -EBUSY and so we fire this assert: XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 because the kernel is trying to fall back to buffered IO on the direct IO path (which XFS does not do). The real question is this: Why can't that page be invalidated after it has been written to disk an cleaned? Well, there's data on the first two buffers in the page (1k block size, 4k page), but the third buffer on the page (i.e. beyond EOF) is failing drop_buffers because it's bh->b_state == 0x3, which is BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say what? OK, set_buffer_dirty() is called on all buffers from __set_page_buffers_dirty(), regardless of whether the buffer is beyond EOF or not, which means that when we get to ->writepage, we have buffers marked dirty beyond EOF that we need to clean. So, we need to implement our own .set_page_dirty method that doesn't dirty buffers beyond EOF. This is messy because the buffer code is not meant to be shared and it has interesting locking issues on the buffer dirty bits. So just copy and paste it and then modify it to suit what we need. cc: Signed-off-by: Dave Chinner --- fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 11e9b4c..2a316ad 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1753,11 +1753,69 @@ xfs_vm_readpages( return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); } +/* + * This is basically a copy of __set_page_dirty_buffers() with one + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them + * dirty, we'll never be able to clean them because we don't write buffers + * beyond EOF, and that means we can't invalidate pages that span EOF + * that have been marked dirty. Further, the dirty state can leak into + * the file interior if the file is extended, resulting in all sorts of + * bad things happening as the state does not match the unerlying data. + */ +STATIC int +xfs_vm_set_page_dirty( + struct page *page) +{ + struct address_space *mapping = page_mapping(page); + struct inode *inode = mapping->host; + loff_t end_offset; + loff_t offset; + int newly_dirty; + + if (unlikely(!mapping)) + return !TestSetPageDirty(page); + + end_offset = i_size_read(inode); + offset = end_offset & PAGE_CACHE_MASK; + + spin_lock(&mapping->private_lock); + if (page_has_buffers(page)) { + struct buffer_head *head = page_buffers(page); + struct buffer_head *bh = head; + + do { + if (offset < end_offset) + set_buffer_dirty(bh); + bh = bh->b_this_page; + offset += 1 << inode->i_blkbits; + } while (bh != head); + } + newly_dirty = !TestSetPageDirty(page); + spin_unlock(&mapping->private_lock); + + if (newly_dirty) { + /* sigh - __set_page_dirty() is static, so copy it here, too */ + unsigned long flags; + + spin_lock_irqsave(&mapping->tree_lock, flags); + if (page->mapping) { /* Race with truncate? */ + WARN_ON_ONCE(!PageUptodate(page)); + account_page_dirtied(page, mapping); + radix_tree_tag_set(&mapping->page_tree, + page_index(page), PAGECACHE_TAG_DIRTY); + } + spin_unlock_irqrestore(&mapping->tree_lock, flags); + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); + } + return newly_dirty; +} + const struct address_space_operations xfs_address_space_operations = { .readpage = xfs_vm_readpage, .readpages = xfs_vm_readpages, .writepage = xfs_vm_writepage, .writepages = xfs_vm_writepages, + .set_page_dirty = xfs_vm_set_page_dirty, .releasepage = xfs_vm_releasepage, .invalidatepage = xfs_vm_invalidatepage, .write_begin = xfs_vm_write_begin, -- 2.0.0 From dave@fromorbit.com Thu Aug 21 00:09:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 42E0F7F5E for ; Thu, 21 Aug 2014 00:09:41 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id C6D9CAC002 for ; Wed, 20 Aug 2014 22:09:40 -0700 (PDT) X-ASG-Debug-ID: 1408597776-04cbb05486164480002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 7Q1i7Xm9J5vm5rwr for ; Wed, 20 Aug 2014 22:09:38 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4PAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoczp3MBAQEBBqYHFwUBAQEBODaEBAEFJy8jEAgYMTkDBxQZiEHBdIV8jiMFtT0rL4EIJIEjAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i7-Nz; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003ln-N3; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 5/6] xfs: don't log inode unless extent shift makes extent modifications Date: Thu, 21 Aug 2014 15:09:13 +1000 X-ASG-Orig-Subj: [PATCH 5/6] xfs: don't log inode unless extent shift makes extent modifications Message-Id: <1408597754-13526-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408597754-13526-1-git-send-email-david@fromorbit.com> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597778 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Brian Foster The file collapse mechanism uses xfs_bmap_shift_extents() to collapse all subsequent extents down into the specified, previously punched out, region. This function performs some validation, such as whether a sufficient hole exists in the target region of the collapse, then shifts the remaining exents downward. The exit path of the function currently logs the inode unconditionally. While we must log the inode (and abort) if an error occurs and the transaction is dirty, the initial validation paths can generate errors before the transaction has been dirtied. This creates an unnecessary filesystem shutdown scenario, as the caller will cancel a transaction that has been marked dirty. Modify xfs_bmap_shift_extents() to OR the logflags bits as modifications are made to the inode bmap. Only log the inode in the exit path if logflags has been set. This ensures we only have to cancel a dirty transaction if modifications have been made and prevents an unnecessary filesystem shutdown otherwise. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 3a6a700..e5c2518 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5422,7 +5422,7 @@ xfs_bmap_shift_extents( struct xfs_bmap_free *flist, int num_exts) { - struct xfs_btree_cur *cur; + struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; struct xfs_bmbt_irec got; struct xfs_bmbt_irec left; @@ -5433,7 +5433,7 @@ xfs_bmap_shift_extents( int error = 0; int i; int whichfork = XFS_DATA_FORK; - int logflags; + int logflags = 0; xfs_filblks_t blockcount = 0; int total_extents; @@ -5476,16 +5476,11 @@ xfs_bmap_shift_extents( } } - /* We are going to change core inode */ - logflags = XFS_ILOG_CORE; if (ifp->if_flags & XFS_IFBROOT) { cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstblock; cur->bc_private.b.flist = flist; cur->bc_private.b.flags = 0; - } else { - cur = NULL; - logflags |= XFS_ILOG_DEXT; } /* @@ -5543,11 +5538,14 @@ xfs_bmap_shift_extents( blockcount = left.br_blockcount + got.br_blockcount; xfs_iext_remove(ip, *current_ext, 1, 0); + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_btree_delete(cur, &i); if (error) goto del_cursor; XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } else { + logflags |= XFS_ILOG_DEXT; } XFS_IFORK_NEXT_SET(ip, whichfork, XFS_IFORK_NEXTENTS(ip, whichfork) - 1); @@ -5573,6 +5571,7 @@ xfs_bmap_shift_extents( got.br_startoff = startoff; } + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, @@ -5580,6 +5579,8 @@ xfs_bmap_shift_extents( got.br_state); if (error) goto del_cursor; + } else { + logflags |= XFS_ILOG_DEXT; } (*current_ext)++; @@ -5595,6 +5596,7 @@ del_cursor: xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); - xfs_trans_log_inode(tp, ip, logflags); + if (logflags) + xfs_trans_log_inode(tp, ip, logflags); return error; } -- 2.0.0 From dave@fromorbit.com Thu Aug 21 00:09:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B852F7F69 for ; Thu, 21 Aug 2014 00:09:42 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3583EAC001 for ; Wed, 20 Aug 2014 22:09:39 -0700 (PDT) X-ASG-Debug-ID: 1408597776-04cbb05486164480001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id Kt79tSnLZu5Kurax for ; Wed, 20 Aug 2014 22:09:37 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgEQAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoczp3MBAQEBBqR4gQ8XBQEBAQE4NoQEAQUnLyMQCBgxOQMHFBmIQcF0hXyJRSiENgW1PSsvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i6-NR; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003li-MT; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 4/6] xfs: use ranged writeback and invalidation for direct IO Date: Thu, 21 Aug 2014 15:09:12 +1000 X-ASG-Orig-Subj: [PATCH 4/6] xfs: use ranged writeback and invalidation for direct IO Message-Id: <1408597754-13526-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408597754-13526-1-git-send-email-david@fromorbit.com> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597776 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Now we are not doing silly things with dirtying buffers beyond EOF and using invalidation correctly, we can finally reduce the ranges of writeback and invalidation used by direct IO to match that of the IO being issued. Bring the writeback and invalidation ranges back to match the generic direct IO code - this will greatly reduce the perturbation of cached data when direct IO and buffered IO are mixed, but still provide the same buffered vs direct IO coherency behaviour we currently have. Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 19917fa..de5368c 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -291,7 +291,7 @@ xfs_file_read_iter( if (inode->i_mapping->nrpages) { ret = filemap_write_and_wait_range( VFS_I(ip)->i_mapping, - pos, -1); + pos, pos + size - 1); if (ret) { xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); return ret; @@ -303,7 +303,8 @@ xfs_file_read_iter( * happen on XFS. Warn if it does fail. */ ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, - pos >> PAGE_CACHE_SHIFT, -1); + pos >> PAGE_CACHE_SHIFT, + (pos + size - 1) >> PAGE_CACHE_SHIFT); WARN_ON_ONCE(ret); ret = 0; } @@ -641,7 +642,7 @@ xfs_file_dio_aio_write( if (mapping->nrpages) { ret = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, - pos, -1); + pos, pos + count - 1); if (ret) goto out; /* @@ -650,7 +651,8 @@ xfs_file_dio_aio_write( * happen on XFS. Warn if it does fail. */ ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, - pos >> PAGE_CACHE_SHIFT, -1); + pos >> PAGE_CACHE_SHIFT, + (pos + count - 1) >> PAGE_CACHE_SHIFT); WARN_ON_ONCE(ret); ret = 0; } -- 2.0.0 From dave@fromorbit.com Thu Aug 21 00:09:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DF22F7F69 for ; Thu, 21 Aug 2014 00:09:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id BF4A98F8039 for ; Wed, 20 Aug 2014 22:09:40 -0700 (PDT) X-ASG-Debug-ID: 1408597774-04cb6c54ff14ab70004-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id yAygDWfCjAW6tct7 for ; Wed, 20 Aug 2014 22:09:39 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgEQAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoczp3MBAQEBBqR4gQ8XBQEBAQE4NoQEAQUnLyMQCBgxOQMHFBmIQcF0hXyIbFkohDYFqFKMaysvgQaBSQEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:39:19 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XKKcf-0002i5-Mt; Thu, 21 Aug 2014 15:09:17 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XKKcf-0003ld-Lv; Thu, 21 Aug 2014 15:09:17 +1000 From: Dave Chinner To: xfs@oss.sgi.com Cc: clm@fb.com Subject: [PATCH 3/6] xfs: don't zero partial page cache pages during O_DIRECT writes Date: Thu, 21 Aug 2014 15:09:11 +1000 X-ASG-Orig-Subj: [PATCH 3/6] xfs: don't zero partial page cache pages during O_DIRECT writes Message-Id: <1408597754-13526-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1408597754-13526-1-git-send-email-david@fromorbit.com> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597778 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Similar to direct IO reads, direct IO writes are using truncate_pagecache_range to invalidate the page cache. This is incorrect due to the sub-block zeroing in the page cache that truncate_pagecache_range() triggers. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. cc: stable@vger.kernel.org Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 827cfb2..19917fa 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -644,7 +644,15 @@ xfs_file_dio_aio_write( pos, -1); if (ret) goto out; - truncate_pagecache_range(VFS_I(ip), pos, -1); + /* + * Invalidate whole pages. This can return an error if + * we fail to invalidate a page, but this should never + * happen on XFS. Warn if it does fail. + */ + ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); + WARN_ON_ONCE(ret); + ret = 0; } /* -- 2.0.0 From david@fromorbit.com Thu Aug 21 00:12:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8BAA27F50 for ; Thu, 21 Aug 2014 00:12:56 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 04540AC002 for ; Wed, 20 Aug 2014 22:12:55 -0700 (PDT) X-ASG-Debug-ID: 1408597973-04cbb054881645e0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id XeITSSKxqUqACSsN for ; Wed, 20 Aug 2014 22:12:53 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmYQAIJ+9VN5LDJ8PGdsb2JhbABagw2BKoIshQencwEBAQEGpHgBgQ4XBQEBAQE4NoQEAQU6HCMQCAMYCSUPBSUDBxoTiEHBXRcYhWSJUAeETAWcQ4wPjGsrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 21 Aug 2014 14:42:53 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKKg7-0002im-Sf; Thu, 21 Aug 2014 15:12:51 +1000 Date: Thu, 21 Aug 2014 15:12:51 +1000 From: Dave Chinner To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() Message-ID: <20140821051251.GY20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() References: <53F5651C.8030206@redhat.com> <53F57758.9070007@sandeen.net> <20140821044915.GX20518@dastard> <53F57C8F.6060909@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F57C8F.6060909@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408597973 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8676 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 20, 2014 at 11:58:55PM -0500, Eric Sandeen wrote: > On 8/20/14, 11:49 PM, Dave Chinner wrote: > > On Wed, Aug 20, 2014 at 11:36:40PM -0500, Eric Sandeen wrote: > >> On 8/20/14, 10:18 PM, Eric Sandeen wrote: > >>> In xlog_do_recovery_pass(), there are 2 distinct cases: > >>> non-wrapped and wrapped log recovery. > >>> > >>> If we find a wrapped log, we recover around the end > >>> of the log, and then handle the rest of recovery > >>> exactly as in the non-wrapped case - using exactly the same > >>> (duplicated) code. > >>> > >>> Rather than having the same code in both cases, we can > >>> get the wrapped portion out of the way first if needed, > >>> and then recover the non-wrapped portion of the log. > >>> > >>> There should be no functional change here, just code > >>> reorganization & deduplication. > >>> > >>> The patch looks a bit bigger than it really is; the last > >>> hunk is whitespace changes (un-indenting). > >>> > >>> Tested with xfstests "check -g log" on a stock configuration. > >> > >> which didn't actually hit any log wraps. Does xfstests > >> really not cover wrapped log recovery? anyway, something like this > >> on a small log: > > > > xfs/016 > > AFAICT that doesn't ever run recovery... It does: loop 20 times { mount unmount dump and process log } Cheers, Dave. -- Dave Chinner david@fromorbit.com From thomas@klaube.net Thu Aug 21 02:24:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 74F487F4E for ; Thu, 21 Aug 2014 02:24:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3784D30406B for ; Thu, 21 Aug 2014 00:24:18 -0700 (PDT) X-ASG-Debug-ID: 1408605855-04bdf01097f4a80001-NocioJ Received: from orion.efm.de (orion.efm.de [195.190.148.230]) by cuda.sgi.com with ESMTP id EWdQ1VdHb074xD5Y (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 00:24:16 -0700 (PDT) X-Barracuda-Envelope-From: thomas@klaube.net X-Barracuda-Apparent-Source-IP: 195.190.148.230 Received: from localhost (localhost [127.0.0.1]) by orion.efm.de (Postfix) with ESMTP id 3B1042C2C005; Thu, 21 Aug 2014 09:24:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at orion.efm.de Received: from orion.efm.de ([127.0.0.1]) by localhost (orion.efm.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ey4GbJiNLqzO; Thu, 21 Aug 2014 09:24:15 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by orion.efm.de (Postfix) with ESMTP id 205842C2C006; Thu, 21 Aug 2014 09:24:15 +0200 (CEST) X-Virus-Scanned: amavisd-new at orion.efm.de Received: from orion.efm.de ([127.0.0.1]) by localhost (orion.efm.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 0rLttQIilxAp; Thu, 21 Aug 2014 09:24:15 +0200 (CEST) Received: from orion.efm.de (orion.efm.de [195.190.148.230]) by orion.efm.de (Postfix) with ESMTP id F2DEB2C2C005; Thu, 21 Aug 2014 09:24:14 +0200 (CEST) Date: Thu, 21 Aug 2014 09:24:14 +0200 (CEST) From: Thomas Klaube To: xfs@oss.sgi.com Cc: Dave Chinner Message-ID: <290396821.4233459.1408605854867.JavaMail.zimbra@klaube.net> In-Reply-To: <20140819225507.GS20518@dastard> References: <159192779.3859815.1408461799560.JavaMail.zimbra@klaube.net> <362338960.3862279.1408462470243.JavaMail.zimbra@klaube.net> <20140819225507.GS20518@dastard> Subject: Re: xlog_write: reservation ran out. Need to up reservation MIME-Version: 1.0 X-ASG-Orig-Subj: Re: xlog_write: reservation ran out. Need to up reservation Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailer: Zimbra 8.0.5_GA_5839 (ZimbraWebClient - GC36 (Linux)/8.0.5_GA_5839) Thread-Topic: xlog_write: reservation ran out. Need to up reservation Thread-Index: /XT7UEmjHs8oyGkE0oOjhoQbFCeS8g== X-GBUdb-Analysis: Unknown X-MessageSniffer-Scan-Result: 0 X-MessageSniffer-Rules: 0-0-0-4091-c X-Barracuda-Connect: orion.efm.de[195.190.148.230] X-Barracuda-Start-Time: 1408605856 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.12 X-Barracuda-Spam-Status: No, SCORE=0.12 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085, THREAD_INDEX, THREAD_TOPIC X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8680 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== 0.01 THREAD_TOPIC Thread-Topic: ...(Japanese Subject)... 0.10 BSF_SC0_SA085 Custom Rule SA085 ----- Urspr=C3=BCngliche Mail ----- > Von: "Dave Chinner" > An: "Thomas Klaube" > CC: xfs@oss.sgi.com > Gesendet: Mittwoch, 20. August 2014 00:55:07 > Betreff: Re: xlog_write: reservation ran out. Need to up reservation Hi, > Can you post the fio job configuration? first I run this job for 600 sec: wtk@ubuntu ~ $ cat write.fio [rnd] rw=3Drandwrite ramp_time=3D30 runtime=3D600 time_based gtod_reduce=3D1 size=3D100g refill_buffers=3D1 directory=3D. iodepth=3D64 direct=3D1 blocksize=3D16k numjobs=3D64 nrfiles=3D1 group_reporting ioengine=3Dlibaio loops=3D1 Then I run this job for 2hours: wtk@ubuntu ~ $ cat random.fio [rnd] rw=3Drandrw ramp_time=3D30 runtime=3D7200 time_based rwmixread=3D30 size=3D100g refill_buffers=3D1 directory=3D. iodepth=3D64 direct=3D1 blocksize=3D4k numjobs=3D64 group_reporting ioengine=3Dlibaio loops=3D1 I run this workload on 2 devices in parallel. One is the bcache device (wit= h xfs), the other is a non cached device. The random.fio job causes the problem on the bcache de= vice after ~30-75mins. > http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_whe= n_reporting_a_problem.3F I have sent a mail with all collected data to Dave. > Run the workload directly on the SSD rather than with bcache. Use > mkfs parameters to give you 8 ags and the same size log, and see > if you get the same problem. I created a xfs direclty on the SSD: mkfs.xfs -f -d agcount=3D8 -l size=3D521728b /dev/sdc1 Then I started tho fio jobs as described above for 10 hours. I could not re= produce the problem. I will send a mail to the bcache mailing list as well... 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--f1CCDQjnE3ZE5=_dnXK1q6xAH1J2MIkRqg0-- From bfoster@redhat.com Thu Aug 21 07:36:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9B3DB7F51 for ; Thu, 21 Aug 2014 07:36:14 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 89EA68F8037 for ; Thu, 21 Aug 2014 05:36:11 -0700 (PDT) X-ASG-Debug-ID: 1408624569-04cb6c54fd1c5120001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id p7gy5DMsIVI5Lqd8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 05:36:10 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LCa874024322 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 21 Aug 2014 08:36:09 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LCa795003287; Thu, 21 Aug 2014 08:36:07 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 71F7612577F; Thu, 21 Aug 2014 08:36:06 -0400 (EDT) Date: Thu, 21 Aug 2014 08:36:06 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() Message-ID: <20140821123604.GA64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: deduplicate xlog_do_recovery_pass() References: <53F5651C.8030206@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F5651C.8030206@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408624570 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 20, 2014 at 10:18:52PM -0500, Eric Sandeen wrote: > In xlog_do_recovery_pass(), there are 2 distinct cases: > non-wrapped and wrapped log recovery. > > If we find a wrapped log, we recover around the end > of the log, and then handle the rest of recovery > exactly as in the non-wrapped case - using exactly the same > (duplicated) code. > > Rather than having the same code in both cases, we can > get the wrapped portion out of the way first if needed, > and then recover the non-wrapped portion of the log. > > There should be no functional change here, just code > reorganization & deduplication. > > The patch looks a bit bigger than it really is; the last > hunk is whitespace changes (un-indenting). > > Tested with xfstests "check -g log" on a stock configuration. > > Signed-off-by: Eric Sandeen > --- Looks good to me: Reviewed-by: Brian Foster > > xfs_log_recover.c | 81 ++++++++++++++++++------------------------------------ > 1 file changed, 27 insertions(+), 54 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 1fd5787..08d3569 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -4132,41 +4132,13 @@ xlog_do_recovery_pass( > } > > memset(rhash, 0, sizeof(rhash)); > - if (tail_blk <= head_blk) { > - for (blk_no = tail_blk; blk_no < head_blk; ) { > - error = xlog_bread(log, blk_no, hblks, hbp, &offset); > - if (error) > - goto bread_err2; > - > - rhead = (xlog_rec_header_t *)offset; > - error = xlog_valid_rec_header(log, rhead, blk_no); > - if (error) > - goto bread_err2; > - > - /* blocks in data section */ > - bblks = (int)BTOBB(be32_to_cpu(rhead->h_len)); > - error = xlog_bread(log, blk_no + hblks, bblks, dbp, > - &offset); > - if (error) > - goto bread_err2; > - > - error = xlog_unpack_data(rhead, offset, log); > - if (error) > - goto bread_err2; > - > - error = xlog_recover_process_data(log, > - rhash, rhead, offset, pass); > - if (error) > - goto bread_err2; > - blk_no += bblks + hblks; > - } > - } else { > + blk_no = tail_blk; > + if (tail_blk > head_blk) { > /* > * Perform recovery around the end of the physical log. > * When the head is not on the same cycle number as the tail, > - * we can't do a sequential recovery as above. > + * we can't do a sequential recovery. > */ > - blk_no = tail_blk; > while (blk_no < log->l_logBBsize) { > /* > * Check for header wrapping around physical end-of-log > @@ -4280,34 +4252,35 @@ xlog_do_recovery_pass( > > ASSERT(blk_no >= log->l_logBBsize); > blk_no -= log->l_logBBsize; > + } > > - /* read first part of physical log */ > - while (blk_no < head_blk) { > - error = xlog_bread(log, blk_no, hblks, hbp, &offset); > - if (error) > - goto bread_err2; > + /* read first part of physical log */ > + while (blk_no < head_blk) { > + error = xlog_bread(log, blk_no, hblks, hbp, &offset); > + if (error) > + goto bread_err2; > > - rhead = (xlog_rec_header_t *)offset; > - error = xlog_valid_rec_header(log, rhead, blk_no); > - if (error) > - goto bread_err2; > + rhead = (xlog_rec_header_t *)offset; > + error = xlog_valid_rec_header(log, rhead, blk_no); > + if (error) > + goto bread_err2; > > - bblks = (int)BTOBB(be32_to_cpu(rhead->h_len)); > - error = xlog_bread(log, blk_no+hblks, bblks, dbp, > - &offset); > - if (error) > - goto bread_err2; > + /* blocks in data section */ > + bblks = (int)BTOBB(be32_to_cpu(rhead->h_len)); > + error = xlog_bread(log, blk_no+hblks, bblks, dbp, > + &offset); > + if (error) > + goto bread_err2; > > - error = xlog_unpack_data(rhead, offset, log); > - if (error) > - goto bread_err2; > + error = xlog_unpack_data(rhead, offset, log); > + if (error) > + goto bread_err2; > > - error = xlog_recover_process_data(log, rhash, > - rhead, offset, pass); > - if (error) > - goto bread_err2; > - blk_no += bblks + hblks; > - } > + error = xlog_recover_process_data(log, rhash, > + rhead, offset, pass); > + if (error) > + goto bread_err2; > + blk_no += bblks + hblks; > } > > bread_err2: > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From jeff.liu@oracle.com Thu Aug 21 07:38:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id F26DC7F51 for ; Thu, 21 Aug 2014 07:38:06 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8FDFDAC003 for ; Thu, 21 Aug 2014 05:38:03 -0700 (PDT) X-ASG-Debug-ID: 1408624681-04bdf01097138c40001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id hj2uAPUSdDg5Hhr2 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 05:38:01 -0700 (PDT) X-Barracuda-Envelope-From: jeff.liu@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from acsinet22.oracle.com (acsinet22.oracle.com [141.146.126.238]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s7LCc0U5010739 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 21 Aug 2014 12:38:00 GMT Received: from userz7021.oracle.com (userz7021.oracle.com [156.151.31.85]) by acsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s7LCbxqv029172 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 21 Aug 2014 12:37:59 GMT Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s7LCbw11009563; Thu, 21 Aug 2014 12:37:58 GMT Received: from [192.168.1.103] (/123.119.103.131) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 21 Aug 2014 05:37:58 -0700 Message-ID: <53F5E822.9010507@oracle.com> Date: Thu, 21 Aug 2014 20:37:54 +0800 From: Jeff Liu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: Re: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data References: <53F55765.6030205@redhat.com> X-ASG-Orig-Subj: Re: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data In-Reply-To: <53F55765.6030205@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: acsinet22.oracle.com [141.146.126.238] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1408624681 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8686 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi Eric, On 08/21/2014 10:20 AM, Eric Sandeen wrote: > xfs_seek_hole & xfs_seek_data are remarkably similar; > so much so that they could be combined, saving a fair > bit of semi-complex code duplication. > > The following patch passes generic/285 and generic/286; E > is this worth doing, (maybe cleaning up a bit), or > is it too convoluted & confusing? > > Signed-off-by: Eric Sandeen > --- > > xfs_file.c | 174 +++++++++++++++++-------------------------------------------- > 1 file changed, 50 insertions(+), 124 deletions(-) Significant code reduction :) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 076b170..321dde6 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -964,7 +964,7 @@ xfs_vm_page_mkwrite( > > /* > * This type is designed to indicate the type of offset we would like > - * to search from page cache for either xfs_seek_data() or xfs_seek_hole(). > + * to search from page cache for xfs_seek_hole_data(). > */ > enum { > HOLE_OFF = 0, > @@ -1021,7 +1021,7 @@ xfs_lookup_buffer_offset( > /* > * This routine is called to find out and return a data or hole offset > * from the page cache for unwritten extents according to the desired > - * type for xfs_seek_data() or xfs_seek_hole(). > + * type for xfs_seek_hole_data(). > * > * The argument offset is used to tell where we start to search from the > * page cache. Map is used to figure out the end points of the range to > @@ -1181,9 +1181,10 @@ out: > } > > STATIC loff_t > -xfs_seek_data( > +xfs_seek_hole_data( > struct file *file, > - loff_t start) > + loff_t start, > + int whence) > { > struct inode *inode = file->f_mapping->host; > struct xfs_inode *ip = XFS_I(inode); > @@ -1195,6 +1196,9 @@ xfs_seek_data( > uint lock; > int error; > > + if (XFS_FORCED_SHUTDOWN(mp)) > + return -EIO; Currently, the forced shutdown check up is only enabled for SEEK_HOLE. But looks we should add it for SEEK_DATA as well, no matter the RFC patch would be applied or not. > + > lock = xfs_ilock_data_map_shared(ip); > > isize = i_size_read(inode); > @@ -1209,6 +1213,7 @@ xfs_seek_data( > */ > fsbno = XFS_B_TO_FSBT(mp, start); > end = XFS_B_TO_FSB(mp, isize); > + > for (;;) { > struct xfs_bmbt_irec map[2]; > int nmap = 2; > @@ -1229,29 +1234,46 @@ xfs_seek_data( > offset = max_t(loff_t, start, > XFS_FSB_TO_B(mp, map[i].br_startoff)); > > - /* Landed in a data extent */ > - if (map[i].br_startblock == DELAYSTARTBLOCK || > - (map[i].br_state == XFS_EXT_NORM && > - !isnullstartblock(map[i].br_startblock))) > + /* Landed in the hole we wanted? */ > + if (whence == SEEK_HOLE && > + map[i].br_startblock == HOLESTARTBLOCK) > + goto out; > + > + /* Landed in the data extent we wanted? */ > + if (whence == SEEK_DATA && > + (map[i].br_startblock == DELAYSTARTBLOCK || > + (map[i].br_state == XFS_EXT_NORM && > + !isnullstartblock(map[i].br_startblock)))) > goto out; > > /* > - * Landed in an unwritten extent, try to search data > - * from page cache. > + * Landed in an unwritten extent, try to search > + * for hole or data from page cache. > */ > if (map[i].br_state == XFS_EXT_UNWRITTEN) { > if (xfs_find_get_desired_pgoff(inode, &map[i], > - DATA_OFF, &offset)) > + whence == SEEK_HOLE ? HOLE_OFF : DATA_OFF, > + &offset)) > goto out; > } > } > > - /* > - * map[0] is hole or its an unwritten extent but > - * without data in page cache. Probably means that > - * we are reading after EOF if nothing in map[1]. > - */ > if (nmap == 1) { > + /* > + * The single map didn't have what we were looking for. > + * If we were looking for a hole, we are probably > + * looking past EOF. We should fix offset to point > + * to the end of the file (i.e., there is an implicit > + * hole at the end of any file). > + */ > + if (whence == SEEK_HOLE) { > + offset = isize; > + break; > + } > + /* > + * If we were looking for data, it's nowhere to be found > + */ > + ASSERT(whence == SEEK_DATA); > error = -ENXIO; > goto out_unlock; > } > @@ -1260,125 +1282,30 @@ xfs_seek_data( > > /* > * Nothing was found, proceed to the next round of search > - * if reading offset not beyond or hit EOF. > + * if the next reading offset is not at or beyond EOF. > */ > fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; > start = XFS_FSB_TO_B(mp, fsbno); > if (start >= isize) { > + if (whence == SEEK_HOLE) { > + offset = isize; > + break; > + } > + ASSERT(whence == SEEK_DATA); > error = -ENXIO; > goto out_unlock; > } > } > > out: > - offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); > - > -out_unlock: > - xfs_iunlock(ip, lock); > - > - if (error) > - return error; > - return offset; > -} > - > -STATIC loff_t > -xfs_seek_hole( > - struct file *file, > - loff_t start) > -{ > - struct inode *inode = file->f_mapping->host; > - struct xfs_inode *ip = XFS_I(inode); > - struct xfs_mount *mp = ip->i_mount; > - loff_t uninitialized_var(offset); > - xfs_fsize_t isize; > - xfs_fileoff_t fsbno; > - xfs_filblks_t end; > - uint lock; > - int error; > - > - if (XFS_FORCED_SHUTDOWN(mp)) > - return -EIO; > - > - lock = xfs_ilock_data_map_shared(ip); > - > - isize = i_size_read(inode); > - if (start >= isize) { > - error = -ENXIO; > - goto out_unlock; > - } > - > - fsbno = XFS_B_TO_FSBT(mp, start); > - end = XFS_B_TO_FSB(mp, isize); > - > - for (;;) { > - struct xfs_bmbt_irec map[2]; > - int nmap = 2; > - unsigned int i; > - > - error = xfs_bmapi_read(ip, fsbno, end - fsbno, map, &nmap, > - XFS_BMAPI_ENTIRE); > - if (error) > - goto out_unlock; > - > - /* No extents at given offset, must be beyond EOF */ > - if (nmap == 0) { > - error = -ENXIO; > - goto out_unlock; > - } > - > - for (i = 0; i < nmap; i++) { > - offset = max_t(loff_t, start, > - XFS_FSB_TO_B(mp, map[i].br_startoff)); > - > - /* Landed in a hole */ > - if (map[i].br_startblock == HOLESTARTBLOCK) > - goto out; > - > - /* > - * Landed in an unwritten extent, try to search hole > - * from page cache. > - */ > - if (map[i].br_state == XFS_EXT_UNWRITTEN) { > - if (xfs_find_get_desired_pgoff(inode, &map[i], > - HOLE_OFF, &offset)) > - goto out; > - } > - } > - > - /* > - * map[0] contains data or its unwritten but contains > - * data in page cache, probably means that we are > - * reading after EOF. We should fix offset to point > - * to the end of the file(i.e., there is an implicit > - * hole at the end of any file). > - */ > - if (nmap == 1) { > - offset = isize; > - break; > - } > - > - ASSERT(i > 1); > - > - /* > - * Both mappings contains data, proceed to the next round of > - * search if the current reading offset not beyond or hit EOF. > - */ > - fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; > - start = XFS_FSB_TO_B(mp, fsbno); > - if (start >= isize) { > - offset = isize; > - break; > - } > - } > - > -out: > /* > - * At this point, we must have found a hole. However, the returned > + * If at this point we have found the hole we wanted, the returned > * offset may be bigger than the file size as it may be aligned to > - * page boundary for unwritten extents, we need to deal with this > + * page boundary for unwritten extents. We need to deal with this > * situation in particular. > */ > - offset = min_t(loff_t, offset, isize); > + if (whence == SEEK_HOLE) > + offset = min_t(loff_t, offset, isize); > offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); > > out_unlock: > @@ -1400,10 +1327,9 @@ xfs_file_llseek( > case SEEK_CUR: > case SEEK_SET: > return generic_file_llseek(file, offset, origin); > - case SEEK_DATA: > - return xfs_seek_data(file, offset); > case SEEK_HOLE: > - return xfs_seek_hole(file, offset); > + case SEEK_DATA: > + return xfs_seek_hole_data(file, offset, origin); > default: > return -EINVAL; > } With the current refactoring, the code logic still looks easy to understand, so I personally vote this change. BTW, originally I have also tried to implement SEEK_HOLE/DATA in one routine in my 1st round of patch which was shown as following. However, I failed to make the code looks readable and works correctly at that time. http://oss.sgi.com/archives/xfs/2011-11/msg00364.html http://oss.sgi.com/archives/xfs/2011-11/msg00395.html Cheers, -Jeff From bfoster@redhat.com Thu Aug 21 07:48:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 161C07F51 for ; Thu, 21 Aug 2014 07:48:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 8AD75AC003 for ; Thu, 21 Aug 2014 05:48:35 -0700 (PDT) X-ASG-Debug-ID: 1408625309-04cbb054881ee760001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 5jBbIKRcBf5LXsUD (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 05:48:30 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LCmPhc028631 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 08:48:25 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LCmPKZ000310; Thu, 21 Aug 2014 08:48:25 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 28BD112577F; Thu, 21 Aug 2014 08:48:24 -0400 (EDT) Date: Thu, 21 Aug 2014 08:48:24 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140821124823.GB64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408625310 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 03:09:09PM +1000, Dave Chinner wrote: > From: Dave Chinner > > generic/263 is failing fsx at this point with a page spanning > EOF that cannot be invalidated. The operations are: > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > write attempts to invalidate the cached page over this range, it > fails with -EBUSY and so we fire this assert: > > XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 > > because the kernel is trying to fall back to buffered IO on the > direct IO path (which XFS does not do). > > The real question is this: Why can't that page be invalidated after > it has been written to disk an cleaned? > > Well, there's data on the first two buffers in the page (1k block > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > is failing drop_buffers because it's bh->b_state == 0x3, which is > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > what? > > OK, set_buffer_dirty() is called on all buffers from > __set_page_buffers_dirty(), regardless of whether the buffer is > beyond EOF or not, which means that when we get to ->writepage, > we have buffers marked dirty beyond EOF that we need to clean. > So, we need to implement our own .set_page_dirty method that > doesn't dirty buffers beyond EOF. > > This is messy because the buffer code is not meant to be shared > and it has interesting locking issues on the buffer dirty bits. > So just copy and paste it and then modify it to suit what we need. > > cc: > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 58 insertions(+) > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index 11e9b4c..2a316ad 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -1753,11 +1753,69 @@ xfs_vm_readpages( > return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); > } > > +/* > + * This is basically a copy of __set_page_dirty_buffers() with one > + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them > + * dirty, we'll never be able to clean them because we don't write buffers > + * beyond EOF, and that means we can't invalidate pages that span EOF > + * that have been marked dirty. Further, the dirty state can leak into > + * the file interior if the file is extended, resulting in all sorts of > + * bad things happening as the state does not match the unerlying data. > + */ > +STATIC int > +xfs_vm_set_page_dirty( > + struct page *page) > +{ > + struct address_space *mapping = page_mapping(page); This breaks xfs as a kernel module: $ make -j 8 M=fs/xfs Building modules, stage 2. MODPOST 1 modules WARNING: "page_mapping" [fs/xfs/xfs.ko] undefined! ... I suppose we could export that symbol, but why wouldn't we just propose this change to __set_page_dirty_buffers()? Brian > + struct inode *inode = mapping->host; > + loff_t end_offset; > + loff_t offset; > + int newly_dirty; > + > + if (unlikely(!mapping)) > + return !TestSetPageDirty(page); > + > + end_offset = i_size_read(inode); > + offset = end_offset & PAGE_CACHE_MASK; > + > + spin_lock(&mapping->private_lock); > + if (page_has_buffers(page)) { > + struct buffer_head *head = page_buffers(page); > + struct buffer_head *bh = head; > + > + do { > + if (offset < end_offset) > + set_buffer_dirty(bh); > + bh = bh->b_this_page; > + offset += 1 << inode->i_blkbits; > + } while (bh != head); > + } > + newly_dirty = !TestSetPageDirty(page); > + spin_unlock(&mapping->private_lock); > + > + if (newly_dirty) { > + /* sigh - __set_page_dirty() is static, so copy it here, too */ > + unsigned long flags; > + > + spin_lock_irqsave(&mapping->tree_lock, flags); > + if (page->mapping) { /* Race with truncate? */ > + WARN_ON_ONCE(!PageUptodate(page)); > + account_page_dirtied(page, mapping); > + radix_tree_tag_set(&mapping->page_tree, > + page_index(page), PAGECACHE_TAG_DIRTY); > + } > + spin_unlock_irqrestore(&mapping->tree_lock, flags); > + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); > + } > + return newly_dirty; > +} > + > const struct address_space_operations xfs_address_space_operations = { > .readpage = xfs_vm_readpage, > .readpages = xfs_vm_readpages, > .writepage = xfs_vm_writepage, > .writepages = xfs_vm_writepages, > + .set_page_dirty = xfs_vm_set_page_dirty, > .releasepage = xfs_vm_releasepage, > .invalidatepage = xfs_vm_invalidatepage, > .write_begin = xfs_vm_write_begin, > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From chloe@tm-expedite.com Thu Aug 21 07:57:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 1CE847F51 for ; Thu, 21 Aug 2014 07:57:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9EA95AC001 for ; Thu, 21 Aug 2014 05:57:21 -0700 (PDT) X-ASG-Debug-ID: 1408625839-04cbb054861f96b0001-NocioJ Received: from tm-expedite.com (tm-expedite.com [100.42.48.83]) by cuda.sgi.com with ESMTP id XhquJhcygm2FGRPs (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 05:57:20 -0700 (PDT) X-Barracuda-Envelope-From: chloe@tm-expedite.com X-Barracuda-Apparent-Source-IP: 100.42.48.83 Received: from localhost.localdomain ([127.0.0.1]:36845 helo=localhost) by glass.arvixe.com with esmtpsa (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.80.1) (envelope-from ) id 1XKRxQ-000569-FY for xfs@oss.sgi.com; Thu, 21 Aug 2014 07:59:12 -0500 Received: from 192.168.160.138 ([192.168.160.138]) by webmail.tm-expedite.com (Horde Framework) with HTTP; Thu, 21 Aug 2014 07:59:12 -0500 Message-ID: <20140821075912.12822fd0oq5shjk0@webmail.tm-expedite.com> Date: Thu, 21 Aug 2014 07:59:12 -0500 From: chloe@tm-expedite.com To: xfs@oss.sgi.com Subject: Call to talk about Lead Generation MIME-Version: 1.0 X-ASG-Orig-Subj: Call to talk about Lead Generation Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; format="flowed" Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.3.11) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - glass.arvixe.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tm-expedite.com X-Get-Message-Sender-Via: glass.arvixe.com: authenticated_id: chloe@tm-expedite.com X-Barracuda-Connect: tm-expedite.com[100.42.48.83] X-Barracuda-Start-Time: 1408625840 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=NO_REAL_NAME X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8687 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 NO_REAL_NAME From: does not include a real name Hello There! I'm Chloe of Team-Expedite, a lead generation and appointment setting company. I?d like to know if you?re looking to get more clients? Our campaigns involve cold calling (telemarketing) combined with email blasts and Linkedin networking. We can contact decision-makers that meet your criteria, introduce your services and prequalify them. Interested prospects are referred to you for a formal presentation by phone or face to face appointment. I can book a 15 min call with our sales rep so you can learn more about this. What?s a good day and time, and the number to reach you? Sincerely, Chloe Williams Marketing Department chloe@tm-expedite.com www.linkedin.com/pub/chloe-williams/98/234/80a/ For more information: call me at 888.674.0139 or book a call: www.team-expedite.com/contact-us From BATV+b980e68653750fd809d7+4015+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 21 08:08:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 154137F51 for ; Thu, 21 Aug 2014 08:08:19 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id A6C18AC003 for ; Thu, 21 Aug 2014 06:08:15 -0700 (PDT) X-ASG-Debug-ID: 1408626493-04bdf0109714dbe0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id rDfwQMWtyuZAUCtc (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 06:08:13 -0700 (PDT) X-Barracuda-Envelope-From: BATV+b980e68653750fd809d7+4015+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XKS68-0005Xs-Mt; Thu, 21 Aug 2014 13:08:12 +0000 Date: Thu, 21 Aug 2014 06:08:12 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140821130812.GC1567@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1408626493 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8687 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Aug 21, 2014 at 03:09:09PM +1000, Dave Chinner wrote: > From: Dave Chinner > > generic/263 is failing fsx at this point with a page spanning > EOF that cannot be invalidated. The operations are: > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > write attempts to invalidate the cached page over this range, it > fails with -EBUSY and so we fire this assert: > > XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 > > because the kernel is trying to fall back to buffered IO on the > direct IO path (which XFS does not do). > > The real question is this: Why can't that page be invalidated after > it has been written to disk an cleaned? > > Well, there's data on the first two buffers in the page (1k block > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > is failing drop_buffers because it's bh->b_state == 0x3, which is > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > what? > > OK, set_buffer_dirty() is called on all buffers from > __set_page_buffers_dirty(), regardless of whether the buffer is > beyond EOF or not, which means that when we get to ->writepage, > we have buffers marked dirty beyond EOF that we need to clean. > So, we need to implement our own .set_page_dirty method that > doesn't dirty buffers beyond EOF. Shouldn't this be fixed in __set_page_buffers_dirty itself? This doesn't seem an XFS-specific issue. From bfoster@redhat.com Thu Aug 21 08:08:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 2C7707F51 for ; Thu, 21 Aug 2014 08:08:57 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id F24DD304048 for ; Thu, 21 Aug 2014 06:08:53 -0700 (PDT) X-ASG-Debug-ID: 1408626532-04bdf010a114dd00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id eCRsWUL89heUrWLY (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 06:08:53 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD8n32025871 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 09:08:49 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD8mxB015168; Thu, 21 Aug 2014 09:08:48 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id C12AB12577F; Thu, 21 Aug 2014 09:08:47 -0400 (EDT) Date: Thu, 21 Aug 2014 09:08:47 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 2/6] xfs: don't zero partial page cache pages during O_DIRECT writes Message-ID: <20140821130847.GC64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/6] xfs: don't zero partial page cache pages during O_DIRECT writes References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408626533 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 03:09:10PM +1000, Dave Chinner wrote: > From: Chris Mason > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who > only invalidate pages during DIO writes. > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial > ranges in the page. This means a DIO read can zero out part of the > page cache page, and it is possible the page will stay in cache. > > buffered reads will find an up to date page with zeros instead of > the data actually on disk. > > This patch fixes things by using invalidate_inode_pages2_range > instead. It preserves the page cache invalidation, but won't zero > any pages. > > [dchinner: catch error and warn if it fails. Comment.] > > cc: stable@vger.kernel.org > Signed-off-by: Chris Mason > Reviewed-by: Dave Chinner > Signed-off-by: Dave Chinner > --- Reviewed-by: Brian Foster > fs/xfs/xfs_file.c | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 076b170..827cfb2 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -296,7 +296,16 @@ xfs_file_read_iter( > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > } > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + > + /* > + * Invalidate whole pages. This can return an error if > + * we fail to invalidate a page, but this should never > + * happen on XFS. Warn if it does fail. > + */ > + ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > + pos >> PAGE_CACHE_SHIFT, -1); > + WARN_ON_ONCE(ret); > + ret = 0; > } > xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); > } > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Aug 21 08:09:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 62A2D7F51 for ; Thu, 21 Aug 2014 08:09:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 42A468F804B for ; Thu, 21 Aug 2014 06:09:18 -0700 (PDT) X-ASG-Debug-ID: 1408626556-04bdf0109714dd50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id GCJXXyST8W402qmi (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 06:09:17 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD9BL2008919 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 09:09:12 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD9B1O026681; Thu, 21 Aug 2014 09:09:11 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id A138F12577F; Thu, 21 Aug 2014 09:09:10 -0400 (EDT) Date: Thu, 21 Aug 2014 09:09:10 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 3/6] xfs: don't zero partial page cache pages during O_DIRECT writes Message-ID: <20140821130910.GD64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/6] xfs: don't zero partial page cache pages during O_DIRECT writes References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408626557 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 03:09:11PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Similar to direct IO reads, direct IO writes are using > truncate_pagecache_range to invalidate the page cache. This is > incorrect due to the sub-block zeroing in the page cache that > truncate_pagecache_range() triggers. > > This patch fixes things by using invalidate_inode_pages2_range > instead. It preserves the page cache invalidation, but won't zero > any pages. > > cc: stable@vger.kernel.org > Signed-off-by: Dave Chinner > --- Reviewed-by: Brian Foster > fs/xfs/xfs_file.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 827cfb2..19917fa 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -644,7 +644,15 @@ xfs_file_dio_aio_write( > pos, -1); > if (ret) > goto out; > - truncate_pagecache_range(VFS_I(ip), pos, -1); > + /* > + * Invalidate whole pages. This can return an error if > + * we fail to invalidate a page, but this should never > + * happen on XFS. Warn if it does fail. > + */ > + ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > + pos >> PAGE_CACHE_SHIFT, -1); > + WARN_ON_ONCE(ret); > + ret = 0; > } > > /* > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Aug 21 08:09:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8057A7F5D for ; Thu, 21 Aug 2014 08:09:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6F06F8F804B for ; Thu, 21 Aug 2014 06:09:25 -0700 (PDT) X-ASG-Debug-ID: 1408626563-04cb6c54fd1da680001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ctrTrZI8dOjNNE8H (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 06:09:24 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD9Jk8026053 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 09:09:20 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD9JLn015408; Thu, 21 Aug 2014 09:09:19 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8F8E812577F; Thu, 21 Aug 2014 09:09:18 -0400 (EDT) Date: Thu, 21 Aug 2014 09:09:18 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 4/6] xfs: use ranged writeback and invalidation for direct IO Message-ID: <20140821130918.GE64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 4/6] xfs: use ranged writeback and invalidation for direct IO References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408626564 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 03:09:12PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Now we are not doing silly things with dirtying buffers beyond EOF > and using invalidation correctly, we can finally reduce the ranges of > writeback and invalidation used by direct IO to match that of the IO > being issued. > > Bring the writeback and invalidation ranges back to match the > generic direct IO code - this will greatly reduce the perturbation > of cached data when direct IO and buffered IO are mixed, but still > provide the same buffered vs direct IO coherency behaviour we > currently have. > > Signed-off-by: Dave Chinner > --- Reviewed-by: Brian Foster > fs/xfs/xfs_file.c | 10 ++++++---- > 1 file changed, 6 insertions(+), 4 deletions(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 19917fa..de5368c 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -291,7 +291,7 @@ xfs_file_read_iter( > if (inode->i_mapping->nrpages) { > ret = filemap_write_and_wait_range( > VFS_I(ip)->i_mapping, > - pos, -1); > + pos, pos + size - 1); > if (ret) { > xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); > return ret; > @@ -303,7 +303,8 @@ xfs_file_read_iter( > * happen on XFS. Warn if it does fail. > */ > ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > - pos >> PAGE_CACHE_SHIFT, -1); > + pos >> PAGE_CACHE_SHIFT, > + (pos + size - 1) >> PAGE_CACHE_SHIFT); > WARN_ON_ONCE(ret); > ret = 0; > } > @@ -641,7 +642,7 @@ xfs_file_dio_aio_write( > > if (mapping->nrpages) { > ret = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, > - pos, -1); > + pos, pos + count - 1); > if (ret) > goto out; > /* > @@ -650,7 +651,8 @@ xfs_file_dio_aio_write( > * happen on XFS. Warn if it does fail. > */ > ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, > - pos >> PAGE_CACHE_SHIFT, -1); > + pos >> PAGE_CACHE_SHIFT, > + (pos + count - 1) >> PAGE_CACHE_SHIFT); > WARN_ON_ONCE(ret); > ret = 0; > } > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Thu Aug 21 08:09:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BB3B77F61 for ; Thu, 21 Aug 2014 08:09:30 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 681E5AC004 for ; Thu, 21 Aug 2014 06:09:30 -0700 (PDT) X-ASG-Debug-ID: 1408626569-04bdf0109a14dd90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id H3YsVNYwn28gbPux (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 06:09:29 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD9Qqi026121 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 09:09:26 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LD9QHr015492; Thu, 21 Aug 2014 09:09:26 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2A38812577F; Thu, 21 Aug 2014 09:09:25 -0400 (EDT) Date: Thu, 21 Aug 2014 09:09:25 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 6/6] xfs: xfs_file_collapse_range is delalloc challenged Message-ID: <20140821130924.GF64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 6/6] xfs: xfs_file_collapse_range is delalloc challenged References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-7-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-7-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408626569 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 03:09:14PM +1000, Dave Chinner wrote: > From: Dave Chinner > > If we have delalloc extents on a file before we run a collapse range > opertaion, we sync the range that we are going to collapse to > convert delalloc extents in that region to real extents to simplify > the shift operation. > > However, the shift operation then assumes that the extent list is > not going to change as it iterates over the extent list moving > things about. Unfortunately, this isn't true because we can't hold > the ILOCK over all the operations. We can prevent new IO from > modifying the extent list by holding the IOLOCK, but that doesn't > prevent writeback from running.... > > And when writeback runs, it can convert delalloc extents is the > range of the file prior to the region being collapsed, and this > changes the indexes of all the extents in the file. That causes the > collapse range operation to Go Bad. > > The right fix is to rewrite the extent shift operation not to be > dependent on the extent list not changing across the entire > operation, but this is a fairly significant piece of work to do. > Hence, as a short-term workaround for the problem, sync the entire > file before starting a collapse operation to remove all delalloc > ranges from the file and so avoid the problem of concurrent > writeback changing the extent list. > > Diagnosed-and-Reported-by: Brian Foster > Signed-off-by: Dave Chinner > --- Reviewed-by: Brian Foster > fs/xfs/xfs_bmap_util.c | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index c53cc03..035041d 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1460,6 +1460,19 @@ xfs_collapse_file_space( > start_fsb = XFS_B_TO_FSB(mp, offset + len); > shift_fsb = XFS_B_TO_FSB(mp, len); > > + /* > + * writeback the entire file to prevent concurrent writeback of ranges > + * outside the collapsing region from changing the extent list. > + * > + * XXX: This is a temporary fix until the extent shift loop below is > + * converted to use offsets and lookups within the ILOCK rather than > + * carrying around the index into the extent list for the next > + * iteration. > + */ > + error = filemap_write_and_wait(VFS_I(ip)->i_mapping); > + if (error) > + return error; > + > error = xfs_free_file_space(ip, offset, len); > if (error) > return error; > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From aia21@cam.ac.uk Thu Aug 21 08:54:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 934537F51 for ; Thu, 21 Aug 2014 08:54:42 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 710E1304081 for ; Thu, 21 Aug 2014 06:54:42 -0700 (PDT) X-ASG-Debug-ID: 1408629280-04cbb0548523fd50001-NocioJ Received: from ppsw-41.csi.cam.ac.uk (ppsw-41.csi.cam.ac.uk [131.111.8.141]) by cuda.sgi.com with ESMTP id e6bbVAarkYvaj0RT (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 06:54:40 -0700 (PDT) X-Barracuda-Envelope-From: aia21@cam.ac.uk X-Barracuda-Apparent-Source-IP: 131.111.8.141 X-Cam-AntiVirus: no malware found X-Cam-ScannerInfo: http://www.cam.ac.uk/cs/email/scanner/ Received: from imp.csi.cam.ac.uk ([131.111.56.75]:61983) by ppsw-41.csi.cam.ac.uk (smtp.hermes.cam.ac.uk [131.111.8.157]:587) with esmtpsa (PLAIN:aia21) (TLSv1:AES128-SHA:128) id 1XKSoy-00083s-QM (Exim 4.82_3-c0e5623) (return-path ); Thu, 21 Aug 2014 14:54:32 +0100 Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Content-Type: text/plain; charset=us-ascii From: Anton Altaparmakov In-Reply-To: <20140821130812.GC1567@infradead.org> Date: Thu, 21 Aug 2014 14:54:30 +0100 Cc: Dave Chinner , xfs@oss.sgi.com, clm@fb.com, linux-fsdevel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Message-Id: <9F1A2B5D-6A0E-47B3-BF63-BA46EF61CCD0@cam.ac.uk> References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> <20140821130812.GC1567@infradead.org> To: Christoph Hellwig X-Mailer: Apple Mail (2.1878.6) X-Barracuda-Connect: ppsw-41.csi.cam.ac.uk[131.111.8.141] X-Barracuda-Start-Time: 1408629280 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8688 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi, On 21 Aug 2014, at 14:08, Christoph Hellwig wrote: > On Thu, Aug 21, 2014 at 03:09:09PM +1000, Dave Chinner wrote: >> From: Dave Chinner >>=20 >> generic/263 is failing fsx at this point with a page spanning >> EOF that cannot be invalidated. The operations are: >>=20 >> 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) >> 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) >> 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) >>=20 >> where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO >> write attempts to invalidate the cached page over this range, it >> fails with -EBUSY and so we fire this assert: >>=20 >> XFS: Assertion failed: ret < 0 || ret =3D=3D count, file: = fs/xfs/xfs_file.c, line: 676 >>=20 >> because the kernel is trying to fall back to buffered IO on the >> direct IO path (which XFS does not do). >>=20 >> The real question is this: Why can't that page be invalidated after >> it has been written to disk an cleaned? >>=20 >> Well, there's data on the first two buffers in the page (1k block >> size, 4k page), but the third buffer on the page (i.e. beyond EOF) >> is failing drop_buffers because it's bh->b_state =3D=3D 0x3, which is >> BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say >> what? >>=20 >> OK, set_buffer_dirty() is called on all buffers from >> __set_page_buffers_dirty(), regardless of whether the buffer is >> beyond EOF or not, which means that when we get to ->writepage, >> we have buffers marked dirty beyond EOF that we need to clean. >> So, we need to implement our own .set_page_dirty method that >> doesn't dirty buffers beyond EOF. >=20 > Shouldn't this be fixed in __set_page_buffers_dirty itself? This > doesn't seem an XFS-specific issue. It is perfectly normal to have dirty buffers beyond EOF. The file = system should just clean such buffers so the page then becomes = reclaimable (or if the file system is using generic functionality this = would be done by the generic functions but XFS is implementing = writepage(s) itself and missing this bit). The generic function you want to see is = fs/buffer.c::__block_write_full_page() which does: if (block > last_block) { /* * mapped buffers outside i_size will occur, = because * this page can be outside i_size when there is = a * truncate in progress. */ /* * The buffer was zeroed by = block_write_full_page() */ clear_buffer_dirty(bh); set_buffer_uptodate(bh); Why do you want to add complexity to __set_page_buffers_dirty() given = that they are no big deal and we need to be able to cope with their = existance due to concurrent truncate anyway? Best regards, Anton --=20 Anton Altaparmakov (replace at with @) University of Cambridge Information Services, Roger Needham Building 7 JJ Thomson Avenue, Cambridge, CB3 0RB, UK From sandeen@sandeen.net Thu Aug 21 09:20:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 300A97F51 for ; Thu, 21 Aug 2014 09:20:26 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1F7188F804B for ; Thu, 21 Aug 2014 07:20:22 -0700 (PDT) X-ASG-Debug-ID: 1408630821-04cb6c54fe20e8f0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 6Iw9eDBiUwaPm18o for ; Thu, 21 Aug 2014 07:20:21 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 5BBD66574438; Thu, 21 Aug 2014 09:20:21 -0500 (CDT) Message-ID: <53F6002A.2080000@sandeen.net> Date: Thu, 21 Aug 2014 09:20:26 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Jeff Liu , Eric Sandeen , xfs-oss Subject: Re: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data References: <53F55765.6030205@redhat.com> <53F5E822.9010507@oracle.com> X-ASG-Orig-Subj: Re: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data In-Reply-To: <53F5E822.9010507@oracle.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408630821 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8689 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/21/14, 7:37 AM, Jeff Liu wrote: > With the current refactoring, the code logic still looks easy to understand, > so I personally vote this change. > > BTW, originally I have also tried to implement SEEK_HOLE/DATA in one routine > in my 1st round of patch which was shown as following. However, I failed to > make the code looks readable and works correctly at that time. > > http://oss.sgi.com/archives/xfs/2011-11/msg00364.html > http://oss.sgi.com/archives/xfs/2011-11/msg00395.html > > > Cheers, > -Jeff Ah, I had forgotten about that! Good idea! ;) -Eric From bfoster@redhat.com Thu Aug 21 09:33:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 4B80A7F51 for ; Thu, 21 Aug 2014 09:33:41 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3848A8F804B for ; Thu, 21 Aug 2014 07:33:41 -0700 (PDT) X-ASG-Debug-ID: 1408631619-04cb6c55002194f0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id NyGV9kzFpSJwKqA9 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 07:33:39 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LEXbt7022390 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 10:33:38 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LEXbOY019745; Thu, 21 Aug 2014 10:33:37 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3A97912577F; Thu, 21 Aug 2014 10:33:36 -0400 (EDT) Date: Thu, 21 Aug 2014 10:33:35 -0400 From: Brian Foster To: Eric Sandeen Cc: xfs-oss , Jeff Liu Subject: Re: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data Message-ID: <20140821143335.GG64112@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH RFC] xfs: combine xfs_seek_hole & xfs_seek_data References: <53F55765.6030205@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F55765.6030205@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408631619 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 20, 2014 at 09:20:21PM -0500, Eric Sandeen wrote: > xfs_seek_hole & xfs_seek_data are remarkably similar; > so much so that they could be combined, saving a fair > bit of semi-complex code duplication. > > The following patch passes generic/285 and generic/286; > is this worth doing, (maybe cleaning up a bit), or > is it too convoluted & confusing? > I agree with Jeff. I think the comments clarify what's going on and the general flow is the same between both types of seek. Just a comment nit below... > Signed-off-by: Eric Sandeen > --- > > xfs_file.c | 174 +++++++++++++++++-------------------------------------------- > 1 file changed, 50 insertions(+), 124 deletions(-) > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 076b170..321dde6 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -964,7 +964,7 @@ xfs_vm_page_mkwrite( > > /* > * This type is designed to indicate the type of offset we would like > - * to search from page cache for either xfs_seek_data() or xfs_seek_hole(). > + * to search from page cache for xfs_seek_hole_data(). > */ > enum { > HOLE_OFF = 0, > @@ -1021,7 +1021,7 @@ xfs_lookup_buffer_offset( > /* > * This routine is called to find out and return a data or hole offset > * from the page cache for unwritten extents according to the desired > - * type for xfs_seek_data() or xfs_seek_hole(). > + * type for xfs_seek_hole_data(). > * > * The argument offset is used to tell where we start to search from the > * page cache. Map is used to figure out the end points of the range to > @@ -1181,9 +1181,10 @@ out: > } > > STATIC loff_t > -xfs_seek_data( > +xfs_seek_hole_data( > struct file *file, > - loff_t start) > + loff_t start, > + int whence) > { > struct inode *inode = file->f_mapping->host; > struct xfs_inode *ip = XFS_I(inode); > @@ -1195,6 +1196,9 @@ xfs_seek_data( > uint lock; > int error; > > + if (XFS_FORCED_SHUTDOWN(mp)) > + return -EIO; > + > lock = xfs_ilock_data_map_shared(ip); > > isize = i_size_read(inode); > @@ -1209,6 +1213,7 @@ xfs_seek_data( > */ > fsbno = XFS_B_TO_FSBT(mp, start); > end = XFS_B_TO_FSB(mp, isize); > + > for (;;) { > struct xfs_bmbt_irec map[2]; > int nmap = 2; > @@ -1229,29 +1234,46 @@ xfs_seek_data( > offset = max_t(loff_t, start, > XFS_FSB_TO_B(mp, map[i].br_startoff)); > > - /* Landed in a data extent */ > - if (map[i].br_startblock == DELAYSTARTBLOCK || > - (map[i].br_state == XFS_EXT_NORM && > - !isnullstartblock(map[i].br_startblock))) > + /* Landed in the hole we wanted? */ > + if (whence == SEEK_HOLE && > + map[i].br_startblock == HOLESTARTBLOCK) > + goto out; > + > + /* Landed in the data extent we wanted? */ > + if (whence == SEEK_DATA && > + (map[i].br_startblock == DELAYSTARTBLOCK || > + (map[i].br_state == XFS_EXT_NORM && > + !isnullstartblock(map[i].br_startblock)))) > goto out; > > /* > - * Landed in an unwritten extent, try to search data > - * from page cache. > + * Landed in an unwritten extent, try to search > + * for hole or data from page cache. > */ > if (map[i].br_state == XFS_EXT_UNWRITTEN) { > if (xfs_find_get_desired_pgoff(inode, &map[i], > - DATA_OFF, &offset)) > + whence == SEEK_HOLE ? HOLE_OFF : DATA_OFF, > + &offset)) > goto out; > } > } > > - /* > - * map[0] is hole or its an unwritten extent but > - * without data in page cache. Probably means that > - * we are reading after EOF if nothing in map[1]. > - */ I think the comment could be slightly improved to explicitly point out why we care about nmap == 1 rather than implicitly via rehashing the logic above. For example: /* * We only received one extent out of the two requested. This * means we've hit EOF and didn't find what we are looking for. */ > if (nmap == 1) { > + /* > + * The single map didn't have what we were looking for. > + * If we were looking for a hole, we are probably > + * looking past EOF. We should fix offset to point > + * to the end of the file (i.e., there is an implicit > + * hole at the end of any file). > + */ /* * If we were looking for a hole, set offset to the * implicit hole at EOF. */ Brian > + if (whence == SEEK_HOLE) { > + offset = isize; > + break; > + } > + /* > + * If we were looking for data, it's nowhere to be found > + */ > + ASSERT(whence == SEEK_DATA); > error = -ENXIO; > goto out_unlock; > } > @@ -1260,125 +1282,30 @@ xfs_seek_data( > > /* > * Nothing was found, proceed to the next round of search > - * if reading offset not beyond or hit EOF. > + * if the next reading offset is not at or beyond EOF. > */ > fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; > start = XFS_FSB_TO_B(mp, fsbno); > if (start >= isize) { > + if (whence == SEEK_HOLE) { > + offset = isize; > + break; > + } > + ASSERT(whence == SEEK_DATA); > error = -ENXIO; > goto out_unlock; > } > } > > out: > - offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); > - > -out_unlock: > - xfs_iunlock(ip, lock); > - > - if (error) > - return error; > - return offset; > -} > - > -STATIC loff_t > -xfs_seek_hole( > - struct file *file, > - loff_t start) > -{ > - struct inode *inode = file->f_mapping->host; > - struct xfs_inode *ip = XFS_I(inode); > - struct xfs_mount *mp = ip->i_mount; > - loff_t uninitialized_var(offset); > - xfs_fsize_t isize; > - xfs_fileoff_t fsbno; > - xfs_filblks_t end; > - uint lock; > - int error; > - > - if (XFS_FORCED_SHUTDOWN(mp)) > - return -EIO; > - > - lock = xfs_ilock_data_map_shared(ip); > - > - isize = i_size_read(inode); > - if (start >= isize) { > - error = -ENXIO; > - goto out_unlock; > - } > - > - fsbno = XFS_B_TO_FSBT(mp, start); > - end = XFS_B_TO_FSB(mp, isize); > - > - for (;;) { > - struct xfs_bmbt_irec map[2]; > - int nmap = 2; > - unsigned int i; > - > - error = xfs_bmapi_read(ip, fsbno, end - fsbno, map, &nmap, > - XFS_BMAPI_ENTIRE); > - if (error) > - goto out_unlock; > - > - /* No extents at given offset, must be beyond EOF */ > - if (nmap == 0) { > - error = -ENXIO; > - goto out_unlock; > - } > - > - for (i = 0; i < nmap; i++) { > - offset = max_t(loff_t, start, > - XFS_FSB_TO_B(mp, map[i].br_startoff)); > - > - /* Landed in a hole */ > - if (map[i].br_startblock == HOLESTARTBLOCK) > - goto out; > - > - /* > - * Landed in an unwritten extent, try to search hole > - * from page cache. > - */ > - if (map[i].br_state == XFS_EXT_UNWRITTEN) { > - if (xfs_find_get_desired_pgoff(inode, &map[i], > - HOLE_OFF, &offset)) > - goto out; > - } > - } > - > - /* > - * map[0] contains data or its unwritten but contains > - * data in page cache, probably means that we are > - * reading after EOF. We should fix offset to point > - * to the end of the file(i.e., there is an implicit > - * hole at the end of any file). > - */ > - if (nmap == 1) { > - offset = isize; > - break; > - } > - > - ASSERT(i > 1); > - > - /* > - * Both mappings contains data, proceed to the next round of > - * search if the current reading offset not beyond or hit EOF. > - */ > - fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; > - start = XFS_FSB_TO_B(mp, fsbno); > - if (start >= isize) { > - offset = isize; > - break; > - } > - } > - > -out: > /* > - * At this point, we must have found a hole. However, the returned > + * If at this point we have found the hole we wanted, the returned > * offset may be bigger than the file size as it may be aligned to > - * page boundary for unwritten extents, we need to deal with this > + * page boundary for unwritten extents. We need to deal with this > * situation in particular. > */ > - offset = min_t(loff_t, offset, isize); > + if (whence == SEEK_HOLE) > + offset = min_t(loff_t, offset, isize); > offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); > > out_unlock: > @@ -1400,10 +1327,9 @@ xfs_file_llseek( > case SEEK_CUR: > case SEEK_SET: > return generic_file_llseek(file, offset, origin); > - case SEEK_DATA: > - return xfs_seek_data(file, offset); > case SEEK_HOLE: > - return xfs_seek_hole(file, offset); > + case SEEK_DATA: > + return xfs_seek_hole_data(file, offset, origin); > default: > return -EINVAL; > } > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From prvs=33104098e6=clm@fb.com Thu Aug 21 10:22:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5B48A7F51 for ; Thu, 21 Aug 2014 10:22:34 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 49FDA8F8039 for ; Thu, 21 Aug 2014 08:22:34 -0700 (PDT) X-ASG-Debug-ID: 1408634550-04cbb0548629e590001-NocioJ Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by cuda.sgi.com with ESMTP id Y48gzfE0OHycnw8C for ; Thu, 21 Aug 2014 08:22:30 -0700 (PDT) X-Barracuda-Envelope-From: prvs=33104098e6=clm@fb.com X-Barracuda-Apparent-Source-IP: 67.231.153.30 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] Received: from pps.filterd (m0004060 [127.0.0.1]) by mx0b-00082601.pphosted.com (8.14.5/8.14.5) with SMTP id s7LFLxUN026710; Thu, 21 Aug 2014 08:22:00 -0700 X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] X-Barracuda-IPDD: Level2 [fb.com/67.231.153.30] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=fb.com; h=message-id : date : from : mime-version : to : cc : subject : references : in-reply-to : content-type : content-transfer-encoding; s=facebook; bh=GjHQTB08OEbyeUfUUFjxi3yrmFR98jqcggDIXOLNWHI=; b=o2dwNzulvqtSLg+f3jT9kF408id2bQ4gBOxIErb+o5JW+wvbs6ui4y2sWUHnDF8pFG9P ZFDCh7RuuIXmeunheegabTybyl6Be3Vu9HuuXto+MlDVI1dJwQDG96UEJen2V5fXIfhc xJhRfCL0Bql4lM82R+4qIArxSY2/+iI6R0k= Received: from mail.thefacebook.com (mailwest.thefacebook.com [173.252.71.148]) by mx0b-00082601.pphosted.com with ESMTP id 1nw3v3thxm-2 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=OK); Thu, 21 Aug 2014 08:22:00 -0700 Received: from [172.20.39.97] (192.168.57.29) by mail.thefacebook.com (192.168.16.22) with Microsoft SMTP Server (TLS) id 14.3.195.1; Thu, 21 Aug 2014 08:21:38 -0700 Message-ID: <53F60E7E.2060905@fb.com> Date: Thu, 21 Aug 2014 11:21:34 -0400 From: Chris Mason User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Christoph Hellwig , Dave Chinner CC: , Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> <20140821130812.GC1567@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages In-Reply-To: <20140821130812.GC1567@infradead.org> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [192.168.57.29] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52,1.0.27,0.0.0000 definitions=2014-08-21_06:2014-08-21,2014-08-21,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 kscore.is_bulkscore=1.81578641011981e-11 kscore.compositescore=0 circleOfTrustscore=0 compositescore=0.997797736942976 urlsuspect_oldscore=0.997797736942976 suspectscore=0 recipient_domain_to_sender_totalscore=0 phishscore=0 bulkscore=0 kscore.is_spamscore=0 recipient_to_sender_totalscore=0 recipient_domain_to_sender_domain_totalscore=64355 rbsscore=0.997797736942976 spamscore=0 recipient_to_sender_domain_totalscore=0 urlsuspectscore=0.9 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1408210186 X-FB-Internal: deliver X-Barracuda-Connect: mx0b-00082601.pphosted.com[67.231.153.30] X-Barracuda-Start-Time: 1408634550 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/21/2014 09:08 AM, Christoph Hellwig wrote: > On Thu, Aug 21, 2014 at 03:09:09PM +1000, Dave Chinner wrote: >> From: Dave Chinner >> >> generic/263 is failing fsx at this point with a page spanning >> EOF that cannot be invalidated. The operations are: >> >> 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) >> 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) >> 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) >> >> where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO >> write attempts to invalidate the cached page over this range, it >> fails with -EBUSY and so we fire this assert: >> >> XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 >> >> because the kernel is trying to fall back to buffered IO on the >> direct IO path (which XFS does not do). >> >> The real question is this: Why can't that page be invalidated after >> it has been written to disk an cleaned? >> >> Well, there's data on the first two buffers in the page (1k block >> size, 4k page), but the third buffer on the page (i.e. beyond EOF) >> is failing drop_buffers because it's bh->b_state == 0x3, which is >> BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say >> what? >> >> OK, set_buffer_dirty() is called on all buffers from >> __set_page_buffers_dirty(), regardless of whether the buffer is >> beyond EOF or not, which means that when we get to ->writepage, >> we have buffers marked dirty beyond EOF that we need to clean. >> So, we need to implement our own .set_page_dirty method that >> doesn't dirty buffers beyond EOF. > > Shouldn't this be fixed in __set_page_buffers_dirty itself? This > doesn't seem an XFS-specific issue. > block_write_full_page() is invalidating buffers past eof. Probably because we used to be able to dirty buffers without holding the page lock, and it's much easier to trust i_size at writepage time. I think we have the page locked for all the dirties now, so this isn't as important as in the past? -chris From sandeen@sandeen.net Thu Aug 21 12:32:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D6FC57F51 for ; Thu, 21 Aug 2014 12:32:02 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 66013AC003 for ; Thu, 21 Aug 2014 10:31:59 -0700 (PDT) X-ASG-Debug-ID: 1408642317-04cb6c54fd24e9e0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 8dJbn8zCRY7uTQ9w for ; Thu, 21 Aug 2014 10:31:57 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 3E253602D5AE for ; Thu, 21 Aug 2014 12:31:57 -0500 (CDT) Message-ID: <53F62D12.8010505@sandeen.net> Date: Thu, 21 Aug 2014 12:32:02 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408642317 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8693 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- The original reason for the expletive below has been lost in the mists of time, but at any rate, ASSERT() goes away in libxfs, and this leads static analysis checkers to believe that XFS_BTNUM_MAX is possible, and that we might overflow an array later when using it as an index. We can shut this up and mark it as truly impossible with abort(). Signed-off-by: Eric Sandeen --- diff --git a/include/xfs_btree.h b/include/xfs_btree.h index 2590d40..f4a1f61 100644 --- a/include/xfs_btree.h +++ b/include/xfs_btree.h @@ -69,7 +69,7 @@ do { \ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(bmbt, stat); break; \ case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(ibt, stat); break; \ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(fibt, stat); break; \ - case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ + case XFS_BTNUM_MAX: abort(); /* fucking gcc */ ; break; \ } \ } while (0) @@ -83,7 +83,7 @@ do { \ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_ADD(bmbt, stat, val); break; \ case XFS_BTNUM_INO: __XFS_BTREE_STATS_ADD(ibt, stat, val); break; \ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_ADD(fibt, stat, val); break; \ - case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ + case XFS_BTNUM_MAX: abort(); /* fucking gcc */ ; break; \ } \ } while (0) From BATV+b980e68653750fd809d7+4015+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 21 12:44:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BEC4C7F51 for ; Thu, 21 Aug 2014 12:44:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id ACCE08F8037 for ; Thu, 21 Aug 2014 10:44:16 -0700 (PDT) X-ASG-Debug-ID: 1408643055-04cb6c54fd24f290001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 1HWtbwIeC8kHFIqV (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 10:44:15 -0700 (PDT) X-Barracuda-Envelope-From: BATV+b980e68653750fd809d7+4015+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XKWPG-0007fM-Td; Thu, 21 Aug 2014 17:44:14 +0000 Date: Thu, 21 Aug 2014 10:44:14 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case Message-ID: <20140821174414.GA28860@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case References: <53F62D12.8010505@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F62D12.8010505@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1408643055 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8693 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 21, 2014 at 12:32:02PM -0500, Eric Sandeen wrote: > The original reason for the expletive below has been lost > in the mists of time, but at any rate, ASSERT() goes away in > libxfs, and this leads static analysis checkers to believe that > XFS_BTNUM_MAX is possible, and that we might overflow an array > later when using it as an index. > > We can shut this up and mark it as truly impossible with abort(). This won't work in kernel space, and we'd like to keep this file in sync. From sandeen@sandeen.net Thu Aug 21 12:45:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DD94F7F51 for ; Thu, 21 Aug 2014 12:45:28 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C9D898F8037 for ; Thu, 21 Aug 2014 10:45:28 -0700 (PDT) X-ASG-Debug-ID: 1408643127-04cbb054882a3d60001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id vpPgmfHIiPnE2Psr for ; Thu, 21 Aug 2014 10:45:28 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id B571E602D5AE; Thu, 21 Aug 2014 12:45:27 -0500 (CDT) Message-ID: <53F6303D.7060407@sandeen.net> Date: Thu, 21 Aug 2014 12:45:33 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Christoph Hellwig CC: xfs-oss Subject: Re: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case References: <53F62D12.8010505@sandeen.net> <20140821174414.GA28860@infradead.org> X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case In-Reply-To: <20140821174414.GA28860@infradead.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408643127 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8693 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/21/14, 12:44 PM, Christoph Hellwig wrote: > On Thu, Aug 21, 2014 at 12:32:02PM -0500, Eric Sandeen wrote: >> The original reason for the expletive below has been lost >> in the mists of time, but at any rate, ASSERT() goes away in >> libxfs, and this leads static analysis checkers to believe that >> XFS_BTNUM_MAX is possible, and that we might overflow an array >> later when using it as an index. >> >> We can shut this up and mark it as truly impossible with abort(). > > This won't work in kernel space, and we'd like to keep this file in sync. Ah, right, sorry - spaced out that it was shared. I'll add ASSERT_ALWAYS() to userspace then, perhaps. Thanks, -Eric From sandeen@sandeen.net Thu Aug 21 13:27:02 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EAE1E7F3F for ; Thu, 21 Aug 2014 13:27:02 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C9DD58F8039 for ; Thu, 21 Aug 2014 11:26:59 -0700 (PDT) X-ASG-Debug-ID: 1408645617-04cbb054862a59c0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id cfzWYGQQDjqbdBBh for ; Thu, 21 Aug 2014 11:26:57 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 60E7B63D7D24 for ; Thu, 21 Aug 2014 13:26:57 -0500 (CDT) Message-ID: <53F639F6.6050905@sandeen.net> Date: Thu, 21 Aug 2014 13:27:02 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH V2] xfsprogs: use ASSERT_ALWAYS for impossible switch case References: <53F62D12.8010505@sandeen.net> X-ASG-Orig-Subj: [PATCH V2] xfsprogs: use ASSERT_ALWAYS for impossible switch case In-Reply-To: <53F62D12.8010505@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408645617 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8695 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- The original reason for the expletive below has been lost in the mists of time, but at any rate, ASSERT() goes away in libxfs, and this leads static analysis checkers to believe that XFS_BTNUM_MAX is possible, and that we might overflow an array later when using it as an index. We can shut this up and mark it as truly impossible by adding a userspace definition for ASSERT_ALWAYS and using it. Signed-off-by: Eric Sandeen --- V2: do it in a kernel-compatible way. diff --git a/include/xfs_btree.h b/include/xfs_btree.h index 2590d40..f24f787 100644 --- a/include/xfs_btree.h +++ b/include/xfs_btree.h @@ -69,7 +69,7 @@ do { \ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(bmbt, stat); break; \ case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(ibt, stat); break; \ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(fibt, stat); break; \ - case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ + case XFS_BTNUM_MAX: ASSERT_ALWAYS(0); /* fucking gcc */ ; break; \ } \ } while (0) @@ -83,7 +83,7 @@ do { \ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_ADD(bmbt, stat, val); break; \ case XFS_BTNUM_INO: __XFS_BTREE_STATS_ADD(ibt, stat, val); break; \ case XFS_BTNUM_FINO: __XFS_BTREE_STATS_ADD(fibt, stat, val); break; \ - case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ + case XFS_BTNUM_MAX: ASSERT_ALWAYS(0); /* fucking gcc */ ; break; \ } \ } while (0) diff --git a/libxfs/xfs.h b/libxfs/xfs.h index 30a316d..81d7cd9 100644 --- a/libxfs/xfs.h +++ b/libxfs/xfs.h @@ -48,6 +48,10 @@ #undef ASSERT #define ASSERT(ex) assert(ex) +#undef ASSERT_ALWAYS +#define ASSERT_ALWAYS(ex) \ + (unlikely(ex) ? (void)0 : abort()) + typedef __uint32_t uint_t; typedef __uint32_t inst_t; /* an instruction */ From bfoster@redhat.com Thu Aug 21 14:18:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0E2F67F4E for ; Thu, 21 Aug 2014 14:18:26 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id F0B5230407E for ; Thu, 21 Aug 2014 12:18:22 -0700 (PDT) X-ASG-Debug-ID: 1408648698-04cb6c54fe2526a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id uwiemdgF8LA9XEkt (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 12:18:19 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LJIER2021382 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 15:18:15 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LJIEle003261; Thu, 21 Aug 2014 15:18:14 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id AB88212577F; Thu, 21 Aug 2014 15:18:12 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Cc: david@fromorbit.com, alex@zadarastorage.com Subject: [PATCH] xfs: fix double free of trans in log recovery on I/O error Date: Thu, 21 Aug 2014 15:18:12 -0400 X-ASG-Orig-Subj: [PATCH] xfs: fix double free of trans in log recovery on I/O error Message-Id: <1408648692-15957-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408648698 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 XFS log recovery builds up an xlog_recover object as it passes through the log operations on the physical log. These structures are managed via a hash table and are allocated when a new transaction is encountered and freed once a commit operation for the transaction is encountered. This state machine for active transactions is implemented by a combination of xlog_do_recovery_pass(), which walks through the log buffers and xlog_recover_process_data() which processes log operations within each buffer. The latter function decides whether to allocate a new xlog_recover, add to it or commit and ultimately free it. If an error occurs at any point during the lifecycle of a particular xlog_recover, xlog_recover_process_data() frees the object and returns an error. xlog_recover_commit_trans() handles the final processing of the transaction. It submits whatever I/O is required for the transaction and frees xlog_recover object along with the transaction items it tracks. If an error occurs at the final stages of the commit operation, such as I/O failure, both xlog_recover_commit_trans() and xlog_recover_process_data() attempt to free the trans object. Modify xlog_recover_commit_trans() to only free the trans object on successful completion of the trans, including any I/O errors that might occur when recovering the log. Signed-off-by: Brian Foster --- Hi all, I found that the recent buffer I/O rework fixes didn't address the crash reproduced by the dm-flakey/log recovery test case I posted recently. I tracked the crash down to this, which allows the test to pass. This addresses the crash I saw when running the reproducer manually with the metadump that Alex posted as well. FWIW, I also went back and tested the xfs_buf_iowait() experiment in both scenarios (Alex's metadump and xfstests test) and they all reproduce the same crash for me. I think that either I'm still not reproducing the original problem, something else might have contaminated the original xfs_buf_iowait() test to give a false positive, or something else entirely is going on. Alex, If you have a chance, I think it might be interesting to see whether you reproduce any problems with this patch. It looks like this is a regression introduced by: 2a84108f xfs: free the list of recovery items on error ... but I have no idea if that's in whatever kernel you're running. Brian fs/xfs/xfs_log_recover.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 176c4b3..daca9a6 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3528,10 +3528,15 @@ out: if (!list_empty(&done_list)) list_splice_init(&done_list, &trans->r_itemq); - xlog_recover_free_trans(trans); - error2 = xfs_buf_delwri_submit(&buffer_list); - return error ? error : error2; + + if (!error) + error = error2; + /* caller frees trans on error */ + if (!error) + xlog_recover_free_trans(trans); + + return error; } STATIC int -- 1.8.3.1 From sandeen@sandeen.net Thu Aug 21 14:23:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BB9B27F4E for ; Thu, 21 Aug 2014 14:23:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id A6A0F304084 for ; Thu, 21 Aug 2014 12:23:11 -0700 (PDT) X-ASG-Debug-ID: 1408648989-04cbb054852a76b0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id VF0S8LdLoUkPuu36 for ; Thu, 21 Aug 2014 12:23:09 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 8149960D7649; Thu, 21 Aug 2014 14:23:09 -0500 (CDT) Message-ID: <53F64723.4070001@sandeen.net> Date: Thu, 21 Aug 2014 14:23:15 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss , Jeff Liu Subject: [PATCH V2] xfs: combine xfs_seek_hole & xfs_seek_data References: <53F55765.6030205@redhat.com> X-ASG-Orig-Subj: [PATCH V2] xfs: combine xfs_seek_hole & xfs_seek_data In-Reply-To: <53F55765.6030205@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408648989 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8699 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfs_seek_hole & xfs_seek_data are remarkably similar; so much so that they can be combined, saving a fair bit of semi-complex code duplication. The following patch passes generic/285 and generic/286, which specifically test seek behavior. Signed-off-by: Eric Sandeen --- V2: comment update as suggested by Brian diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 076b170..1da3b7d 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -964,7 +964,7 @@ xfs_vm_page_mkwrite( /* * This type is designed to indicate the type of offset we would like - * to search from page cache for either xfs_seek_data() or xfs_seek_hole(). + * to search from page cache for xfs_seek_hole_data(). */ enum { HOLE_OFF = 0, @@ -1021,7 +1021,7 @@ xfs_lookup_buffer_offset( /* * This routine is called to find out and return a data or hole offset * from the page cache for unwritten extents according to the desired - * type for xfs_seek_data() or xfs_seek_hole(). + * type for xfs_seek_hole_data(). * * The argument offset is used to tell where we start to search from the * page cache. Map is used to figure out the end points of the range to @@ -1181,9 +1181,10 @@ out: } STATIC loff_t -xfs_seek_data( +xfs_seek_hole_data( struct file *file, - loff_t start) + loff_t start, + int whence) { struct inode *inode = file->f_mapping->host; struct xfs_inode *ip = XFS_I(inode); @@ -1195,6 +1196,9 @@ xfs_seek_data( uint lock; int error; + if (XFS_FORCED_SHUTDOWN(mp)) + return -EIO; + lock = xfs_ilock_data_map_shared(ip); isize = i_size_read(inode); @@ -1209,6 +1213,7 @@ xfs_seek_data( */ fsbno = XFS_B_TO_FSBT(mp, start); end = XFS_B_TO_FSB(mp, isize); + for (;;) { struct xfs_bmbt_irec map[2]; int nmap = 2; @@ -1229,29 +1234,48 @@ xfs_seek_data( offset = max_t(loff_t, start, XFS_FSB_TO_B(mp, map[i].br_startoff)); - /* Landed in a data extent */ - if (map[i].br_startblock == DELAYSTARTBLOCK || - (map[i].br_state == XFS_EXT_NORM && - !isnullstartblock(map[i].br_startblock))) + /* Landed in the hole we wanted? */ + if (whence == SEEK_HOLE && + map[i].br_startblock == HOLESTARTBLOCK) + goto out; + + /* Landed in the data extent we wanted? */ + if (whence == SEEK_DATA && + (map[i].br_startblock == DELAYSTARTBLOCK || + (map[i].br_state == XFS_EXT_NORM && + !isnullstartblock(map[i].br_startblock)))) goto out; /* - * Landed in an unwritten extent, try to search data - * from page cache. + * Landed in an unwritten extent, try to search + * for hole or data from page cache. */ if (map[i].br_state == XFS_EXT_UNWRITTEN) { if (xfs_find_get_desired_pgoff(inode, &map[i], - DATA_OFF, &offset)) + whence == SEEK_HOLE ? HOLE_OFF : DATA_OFF, + &offset)) goto out; } } /* - * map[0] is hole or its an unwritten extent but - * without data in page cache. Probably means that - * we are reading after EOF if nothing in map[1]. + * We only received one extent out of the two requested. This + * means we've hit EOF and didn't find what we are looking for. */ if (nmap == 1) { + /* + * If we were looking for a hole, set offset to + * the end of the file (i.e., there is an implicit + * hole at the end of any file). + */ + if (whence == SEEK_HOLE) { + offset = isize; + break; + } + /* + * If we were looking for data, it's nowhere to be found + */ + ASSERT(whence == SEEK_DATA); error = -ENXIO; goto out_unlock; } @@ -1260,125 +1284,30 @@ xfs_seek_data( /* * Nothing was found, proceed to the next round of search - * if reading offset not beyond or hit EOF. + * if the next reading offset is not at or beyond EOF. */ fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; start = XFS_FSB_TO_B(mp, fsbno); if (start >= isize) { + if (whence == SEEK_HOLE) { + offset = isize; + break; + } + ASSERT(whence == SEEK_DATA); error = -ENXIO; goto out_unlock; } } out: - offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); - -out_unlock: - xfs_iunlock(ip, lock); - - if (error) - return error; - return offset; -} - -STATIC loff_t -xfs_seek_hole( - struct file *file, - loff_t start) -{ - struct inode *inode = file->f_mapping->host; - struct xfs_inode *ip = XFS_I(inode); - struct xfs_mount *mp = ip->i_mount; - loff_t uninitialized_var(offset); - xfs_fsize_t isize; - xfs_fileoff_t fsbno; - xfs_filblks_t end; - uint lock; - int error; - - if (XFS_FORCED_SHUTDOWN(mp)) - return -EIO; - - lock = xfs_ilock_data_map_shared(ip); - - isize = i_size_read(inode); - if (start >= isize) { - error = -ENXIO; - goto out_unlock; - } - - fsbno = XFS_B_TO_FSBT(mp, start); - end = XFS_B_TO_FSB(mp, isize); - - for (;;) { - struct xfs_bmbt_irec map[2]; - int nmap = 2; - unsigned int i; - - error = xfs_bmapi_read(ip, fsbno, end - fsbno, map, &nmap, - XFS_BMAPI_ENTIRE); - if (error) - goto out_unlock; - - /* No extents at given offset, must be beyond EOF */ - if (nmap == 0) { - error = -ENXIO; - goto out_unlock; - } - - for (i = 0; i < nmap; i++) { - offset = max_t(loff_t, start, - XFS_FSB_TO_B(mp, map[i].br_startoff)); - - /* Landed in a hole */ - if (map[i].br_startblock == HOLESTARTBLOCK) - goto out; - - /* - * Landed in an unwritten extent, try to search hole - * from page cache. - */ - if (map[i].br_state == XFS_EXT_UNWRITTEN) { - if (xfs_find_get_desired_pgoff(inode, &map[i], - HOLE_OFF, &offset)) - goto out; - } - } - - /* - * map[0] contains data or its unwritten but contains - * data in page cache, probably means that we are - * reading after EOF. We should fix offset to point - * to the end of the file(i.e., there is an implicit - * hole at the end of any file). - */ - if (nmap == 1) { - offset = isize; - break; - } - - ASSERT(i > 1); - - /* - * Both mappings contains data, proceed to the next round of - * search if the current reading offset not beyond or hit EOF. - */ - fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; - start = XFS_FSB_TO_B(mp, fsbno); - if (start >= isize) { - offset = isize; - break; - } - } - -out: /* - * At this point, we must have found a hole. However, the returned + * If at this point we have found the hole we wanted, the returned * offset may be bigger than the file size as it may be aligned to - * page boundary for unwritten extents, we need to deal with this + * page boundary for unwritten extents. We need to deal with this * situation in particular. */ - offset = min_t(loff_t, offset, isize); + if (whence == SEEK_HOLE) + offset = min_t(loff_t, offset, isize); offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); out_unlock: @@ -1400,10 +1329,9 @@ xfs_file_llseek( case SEEK_CUR: case SEEK_SET: return generic_file_llseek(file, offset, origin); - case SEEK_DATA: - return xfs_seek_data(file, offset); case SEEK_HOLE: - return xfs_seek_hole(file, offset); + case SEEK_DATA: + return xfs_seek_hole_data(file, offset, origin); default: return -EINVAL; } From sandeen@redhat.com Thu Aug 21 14:30:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C4D967F4E for ; Thu, 21 Aug 2014 14:30:26 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6DF0BAC002 for ; Thu, 21 Aug 2014 12:30:25 -0700 (PDT) X-ASG-Debug-ID: 1408649417-04bdf010a01cb8a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id w0ICz8GUvxJj4HsF (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 12:30:17 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7LJUFj1026709 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 Aug 2014 15:30:16 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7LJUE0E010008 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Thu, 21 Aug 2014 15:30:15 -0400 Message-ID: <53F648CC.9080604@redhat.com> Date: Thu, 21 Aug 2014 14:30:20 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss , Jeff Liu Subject: [PATCH] xfs: lseek: the "whence" argument is called "whence" References: <53F55765.6030205@redhat.com> <53F64723.4070001@sandeen.net> X-ASG-Orig-Subj: [PATCH] xfs: lseek: the "whence" argument is called "whence" In-Reply-To: <53F64723.4070001@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408649417 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com For some reason, the older commit: 965c8e5 lseek: the "whence" argument is called "whence" lseek: the "whence" argument is called "whence" But the kernel decided to call it "origin" instead. Fix most of the sites. left out xfs. So fix xfs. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 1da3b7d..0fe36e4 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1322,16 +1322,16 @@ STATIC loff_t xfs_file_llseek( struct file *file, loff_t offset, - int origin) + int whence) { - switch (origin) { + switch (whence) { case SEEK_END: case SEEK_CUR: case SEEK_SET: - return generic_file_llseek(file, offset, origin); + return generic_file_llseek(file, offset, whence); case SEEK_HOLE: case SEEK_DATA: - return xfs_seek_hole_data(file, offset, origin); + return xfs_seek_hole_data(file, offset, whence); default: return -EINVAL; } From jack@suse.cz Thu Aug 21 14:56:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 833D07F51 for ; Thu, 21 Aug 2014 14:56:41 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2D4B3AC003 for ; Thu, 21 Aug 2014 12:56:40 -0700 (PDT) X-ASG-Debug-ID: 1408650997-04bdf0109a1cc4e0001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id 1sNgQSRIP8EeNoSb (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 12:56:39 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 453ADAD2F; Thu, 21 Aug 2014 19:56:37 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id D785C81C68; Thu, 21 Aug 2014 21:56:32 +0200 (CEST) Date: Thu, 21 Aug 2014 21:56:32 +0200 From: Jan Kara To: Dave Chinner Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140821195632.GA10335@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408597754-13526-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1408650998 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8699 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu 21-08-14 15:09:09, Dave Chinner wrote: > From: Dave Chinner > > generic/263 is failing fsx at this point with a page spanning > EOF that cannot be invalidated. The operations are: > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > write attempts to invalidate the cached page over this range, it > fails with -EBUSY and so we fire this assert: > > XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 > > because the kernel is trying to fall back to buffered IO on the > direct IO path (which XFS does not do). > > The real question is this: Why can't that page be invalidated after > it has been written to disk an cleaned? > > Well, there's data on the first two buffers in the page (1k block > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > is failing drop_buffers because it's bh->b_state == 0x3, which is > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > what? > > OK, set_buffer_dirty() is called on all buffers from > __set_page_buffers_dirty(), regardless of whether the buffer is > beyond EOF or not, which means that when we get to ->writepage, > we have buffers marked dirty beyond EOF that we need to clean. > So, we need to implement our own .set_page_dirty method that > doesn't dirty buffers beyond EOF. > > This is messy because the buffer code is not meant to be shared > and it has interesting locking issues on the buffer dirty bits. > So just copy and paste it and then modify it to suit what we need. Well, I'm not sure this is the cleanest way to fix your problem. The thing is that inode size can change (decrease) after set_page_dirty() has run and writeback can find the page before truncate_inode_pages() calls do_invalidatepage() on the last partial page. Now I agree that given truncate and direct IO are both synchronized using IOLOCK, this change still fixes your problem. I just wanted to point out that your change doesn't really make sure won't see dirty buffers in a tail page beyond i_size. As Anton has pointed out other filesystems solve the same issue by clearing the dirty bits beyond EOF in their writepage() function. Also since we zero-out the tail of the page in writepage() (even in XFS as I checked), this kind of makes sense to me and has smaller overhead than special set_page_dirty()... Honza > cc: > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 58 insertions(+) > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index 11e9b4c..2a316ad 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -1753,11 +1753,69 @@ xfs_vm_readpages( > return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); > } > > +/* > + * This is basically a copy of __set_page_dirty_buffers() with one > + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them > + * dirty, we'll never be able to clean them because we don't write buffers > + * beyond EOF, and that means we can't invalidate pages that span EOF > + * that have been marked dirty. Further, the dirty state can leak into > + * the file interior if the file is extended, resulting in all sorts of > + * bad things happening as the state does not match the unerlying data. > + */ > +STATIC int > +xfs_vm_set_page_dirty( > + struct page *page) > +{ > + struct address_space *mapping = page_mapping(page); > + struct inode *inode = mapping->host; > + loff_t end_offset; > + loff_t offset; > + int newly_dirty; > + > + if (unlikely(!mapping)) > + return !TestSetPageDirty(page); > + > + end_offset = i_size_read(inode); > + offset = end_offset & PAGE_CACHE_MASK; > + > + spin_lock(&mapping->private_lock); > + if (page_has_buffers(page)) { > + struct buffer_head *head = page_buffers(page); > + struct buffer_head *bh = head; > + > + do { > + if (offset < end_offset) > + set_buffer_dirty(bh); > + bh = bh->b_this_page; > + offset += 1 << inode->i_blkbits; > + } while (bh != head); > + } > + newly_dirty = !TestSetPageDirty(page); > + spin_unlock(&mapping->private_lock); > + > + if (newly_dirty) { > + /* sigh - __set_page_dirty() is static, so copy it here, too */ > + unsigned long flags; > + > + spin_lock_irqsave(&mapping->tree_lock, flags); > + if (page->mapping) { /* Race with truncate? */ > + WARN_ON_ONCE(!PageUptodate(page)); > + account_page_dirtied(page, mapping); > + radix_tree_tag_set(&mapping->page_tree, > + page_index(page), PAGECACHE_TAG_DIRTY); > + } > + spin_unlock_irqrestore(&mapping->tree_lock, flags); > + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); > + } > + return newly_dirty; > +} > + > const struct address_space_operations xfs_address_space_operations = { > .readpage = xfs_vm_readpage, > .readpages = xfs_vm_readpages, > .writepage = xfs_vm_writepage, > .writepages = xfs_vm_writepages, > + .set_page_dirty = xfs_vm_set_page_dirty, > .releasepage = xfs_vm_releasepage, > .invalidatepage = xfs_vm_invalidatepage, > .write_begin = xfs_vm_write_begin, > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs -- Jan Kara SUSE Labs, CR From david@fromorbit.com Thu Aug 21 17:33:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 495C47F51 for ; Thu, 21 Aug 2014 17:33:42 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id BD3DCAC002 for ; Thu, 21 Aug 2014 15:33:38 -0700 (PDT) X-ASG-Debug-ID: 1408660415-04cbb054852ac780001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id GvtenVvhjB46lvgF for ; Thu, 21 Aug 2014 15:33:35 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At4OAHly9lN5LDJ8PGdsb2JhbABZgw2BKoIshQenfAaefYVxAYEQFwUBAQEBODaEAwEBBAEnExwjBQsIAw4HAwklDwUlAwcaExuIHwfDdRcYhWSJUAeETAWcRpZvHoFuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 22 Aug 2014 08:03:34 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKavE-0005HM-Kc; Fri, 22 Aug 2014 08:33:32 +1000 Date: Fri, 22 Aug 2014 08:33:32 +1000 From: Dave Chinner To: Jan Kara Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140821223332.GO26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> <20140821195632.GA10335@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140821195632.GA10335@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408660415 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8704 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 21, 2014 at 09:56:32PM +0200, Jan Kara wrote: > On Thu 21-08-14 15:09:09, Dave Chinner wrote: > > From: Dave Chinner > > > > generic/263 is failing fsx at this point with a page spanning > > EOF that cannot be invalidated. The operations are: > > > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > > write attempts to invalidate the cached page over this range, it > > fails with -EBUSY and so we fire this assert: > > > > XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 > > > > because the kernel is trying to fall back to buffered IO on the > > direct IO path (which XFS does not do). > > > > The real question is this: Why can't that page be invalidated after > > it has been written to disk an cleaned? > > > > Well, there's data on the first two buffers in the page (1k block > > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > > is failing drop_buffers because it's bh->b_state == 0x3, which is > > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > > what? > > > > OK, set_buffer_dirty() is called on all buffers from > > __set_page_buffers_dirty(), regardless of whether the buffer is > > beyond EOF or not, which means that when we get to ->writepage, > > we have buffers marked dirty beyond EOF that we need to clean. > > So, we need to implement our own .set_page_dirty method that > > doesn't dirty buffers beyond EOF. > > > > This is messy because the buffer code is not meant to be shared > > and it has interesting locking issues on the buffer dirty bits. > > So just copy and paste it and then modify it to suit what we need. > Well, I'm not sure this is the cleanest way to fix your problem. The > thing is that inode size can change (decrease) after set_page_dirty() has > run and writeback can find the page before truncate_inode_pages() calls > do_invalidatepage() on the last partial page. Now I agree that given > truncate and direct IO are both synchronized using IOLOCK, this change > still fixes your problem. I just wanted to point out that your change > doesn't really make sure won't see dirty buffers in a tail page beyond > i_size. Truncate is not the problem. The issue is that we can't *invalidate* pages that have dirty buffers, and I soon realised that we don't see this problem with truncate because *truncate ignores invalidation failures*. So now I went looking for how other code handled this. > As Anton has pointed out other filesystems solve the same issue by clearing > the dirty bits beyond EOF in their writepage() function. Also since we > zero-out the tail of the page in writepage() (even in XFS as I checked), > this kind of makes sense to me and has smaller overhead than special > set_page_dirty()... Yes, and that's where I started - block_write_full_page and so I ended up with this first: diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 2a316ad..a9d6afc 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1057,8 +1073,24 @@ xfs_vm_writepage( do { int new_ioend = 0; - if (offset >= end_offset) + /* + * If the buffer is fully beyond EOF, we need to mark it clean + * otherwise we'll leave stale dirty buffers in memory. See the + * comment above in the EOF handling about Charlie Foxtrots. + */ + if (offset >= end_offset) { + clear_buffer_dirty(bh); + ASSERT(!buffer_delay(bh)); + ASSERT(!buffer_mapped(bh)); + + /* + * Page is not uptodate until buffers under IO have been + * fully processed. + */ + uptodate = 0; + continue; - break; + } + if (!buffer_uptodate(bh)) uptodate = 0; But this doesn't solve the invalidation failures - it merely covers up a symptom of the underlying problem. i.e. fsx went from failing invalidate on the EOF page at operation #1192 to failing invalidate on the EOF page at operation #9378. The I realised that flush/wait/invalidate is actually racy against mmap, so writepage clearing dirty buffer flags on buffers beyond EOF is not a solution to the problem - it can still occur. So I added this check to releasepage() to catch stale dirty buffers beyond EOF preventing invalidation from succeeding: @@ -1209,9 +1245,16 @@ xfs_vm_writepages( /* * Called to move a page into cleanable state - and from there - * to be released. The page should already be clean. We always + * to be released. We always * have buffer heads in this call. * + * The page should already be clean, except in the case where EOF falls within + * the page and then we can have dirty buffers beyond EOF that nobody can + * actually clean. These dirty buffers will cause invalidation failures, but + * because they can't be written the should not prevent us from tossing the page + * out of cache. Hence if we span EOF, walk the buffers on the page and make + * sure they are in a state where try_to_free_buffers() will succeed. + * * Returns 1 if the page is ok to release, 0 otherwise. */ STATIC int @@ -1219,7 +1262,10 @@ xfs_vm_releasepage( struct page *page, gfp_t gfp_mask) { + struct inode *inode = page->mapping->host; int delalloc, unwritten; + loff_t end_offset, offset; + pgoff_t end_index; trace_xfs_releasepage(page->mapping->host, page, 0, 0); @@ -1230,5 +1276,21 @@ xfs_vm_releasepage( if (WARN_ON_ONCE(unwritten)) return 0; + end_offset = i_size_read(inode); + end_index = end_offset >> PAGE_CACHE_SHIFT; + if (page->index >= end_index) { + struct buffer_head *head = page_buffers(page); + struct buffer_head *bh; + + offset = end_index << PAGE_CACHE_SHIFT; + bh = head; + do { + if (offset > end_offset) + clear_buffer_dirty(bh); + bh = bh->b_this_page; + offset += 1 << inode->i_blkbits; + } while (bh != head); + } + return try_to_free_buffers(page); } Which then moved the fsx invalidation failure out to somewhere around 105,000 operations. At which point I realised that I'm playing whack-a-mole with a fundamental problem: buffers beyond EOF cannot be written, so dirtying them in the first place is just fundamentally wrong. In XFS we'll zero them on disk during an extend operation (either in write, truncate or prealloc), so we're not going to leaak stale data by not marking them dirty. They may not even be allocated, so we can't assume that we can write them. So, rather than trying to handle this dirty-buffers-beyond-EOF case in every situation where we might trip over it, let's just prevent it from happening in the first place. That's where the .set_page_dirty() method came about. The "mmap dirties buffers beyond the EOF" problem is gone. Now, truncate might have a similar problem with leaving dirty buffers beyond EOF as you suggest, but I just can't seem to trip over that problem and it hasn't shown up in the ~500 million fsx ops and ~30 hours of fsstress that I've run in the past few days. So without being able to reproduce a problem, I'm extremely wary of trying to "fix" it. Quite frankly, preventing data corruption is far, far more important than optimisation and efficiency.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 21 17:39:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A7A8E7F56 for ; Thu, 21 Aug 2014 17:39:56 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7634A8F8035 for ; Thu, 21 Aug 2014 15:39:53 -0700 (PDT) X-ASG-Debug-ID: 1408660790-04bdf0109a1d0cc0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id GBP7q00KV4mGLU7o for ; Thu, 21 Aug 2014 15:39:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At4OANN09lN5LDJ8PGdsb2JhbABZgw2BKoIshQenfAaefYVxAYEMFwUBAQEBODaEAwEBBAEnExweBQULCAMOCgklDwUlAwcaE4g6B8N3FxiFZIlQB4RMAQScRph7Ky+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 22 Aug 2014 08:09:16 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKb0H-0005IJ-E2; Fri, 22 Aug 2014 08:38:45 +1000 Date: Fri, 22 Aug 2014 08:38:45 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140821223845.GP26465@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> <20140821124823.GB64112@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140821124823.GB64112@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408660790 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8704 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 21, 2014 at 08:48:24AM -0400, Brian Foster wrote: > On Thu, Aug 21, 2014 at 03:09:09PM +1000, Dave Chinner wrote: > > +++ b/fs/xfs/xfs_aops.c > > @@ -1753,11 +1753,69 @@ xfs_vm_readpages( > > return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); > > } > > > > +/* > > + * This is basically a copy of __set_page_dirty_buffers() with one > > + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them > > + * dirty, we'll never be able to clean them because we don't write buffers > > + * beyond EOF, and that means we can't invalidate pages that span EOF > > + * that have been marked dirty. Further, the dirty state can leak into > > + * the file interior if the file is extended, resulting in all sorts of > > + * bad things happening as the state does not match the unerlying data. > > + */ > > +STATIC int > > +xfs_vm_set_page_dirty( > > + struct page *page) > > +{ > > + struct address_space *mapping = page_mapping(page); > > This breaks xfs as a kernel module: > > $ make -j 8 M=fs/xfs > Building modules, stage 2. > MODPOST 1 modules > WARNING: "page_mapping" [fs/xfs/xfs.ko] undefined! > ... Oh, that should just be: + struct address_space *mapping = page->mapping; > I suppose we could export that symbol, but why wouldn't we just propose > this change to __set_page_dirty_buffers()? I'm not going to risk breaking other filesystems that have implicit dependencies on buffers beyond EOF being dirtied. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 21 17:50:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 82D187F53 for ; Thu, 21 Aug 2014 17:50:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2520BAC004 for ; Thu, 21 Aug 2014 15:50:52 -0700 (PDT) X-ASG-Debug-ID: 1408661450-04bdf010971d0fe0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 6yyS3yiM6r2ONhsB for ; Thu, 21 Aug 2014 15:50:50 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: At4OACx39lN5LDJ8PGdsb2JhbABZgw2BKoIshQenfAaefYVxAYEMFwUBAQEBODaEAwEBBAEnExwjBQsIAxgJJQ8FJQMHGhOIOgfDdhcYhWSJUAeETAWcRph7Ky+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 22 Aug 2014 08:20:49 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKbBw-0005JT-HG; Fri, 22 Aug 2014 08:50:48 +1000 Date: Fri, 22 Aug 2014 08:50:48 +1000 From: Dave Chinner To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case Message-ID: <20140821225048.GQ26465@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfsprogs: use abort() not ASSERT(0) for impossible switch case References: <53F62D12.8010505@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F62D12.8010505@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408661450 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8706 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 21, 2014 at 12:32:02PM -0500, Eric Sandeen wrote: > The original reason for the expletive below has been lost > in the mists of time Oh, no it hasn't. That's a switch statement using enums for the cases and so if you don't define every enum value in the switch statement gcc throws warnings. IOWs, the switch statement has to either define them all or contain a "default" case, either of which *does not need to exist* because other code guarantees that the value of cur->bc_btnum is within the valid range. So, we have to put an invalid value into the switch statement to make gcc shut the fuck up, and the ASSERT(0) is there to indicate that "this should never, ever happen". > libxfs, and this leads static analysis checkers to believe that > XFS_BTNUM_MAX is possible, and that we might overflow an array > later when using it as an index. > > We can shut this up and mark it as truly impossible with abort(). Random differences between kernel and user code to keep static analysis checkers happy is not a good road to follow, because it will just cause patch failures and people wondering "why is this randomly different to the kernel code?". So, no, I don't really like this approach. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 21 17:55:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 47A1F7F53 for ; Thu, 21 Aug 2014 17:55:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 33CB48F8050 for ; Thu, 21 Aug 2014 15:55:26 -0700 (PDT) X-ASG-Debug-ID: 1408661722-04cbb054862ace30001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id K5T6EpxAmUekaX8I for ; Thu, 21 Aug 2014 15:55:23 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtwOAF149lN5LDJ8PGdsb2JhbABZgw2BKoIshQenfQaefYVxAYEMFwUBAQEBODaEBAEFOhwjEAgDGAklDwUlAwcaE4hBw3gXGIVkiVAHhEwFnEaMD4xsKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 22 Aug 2014 08:25:22 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XKbGL-0005KA-Dx; Fri, 22 Aug 2014 08:55:21 +1000 Date: Fri, 22 Aug 2014 08:55:21 +1000 From: Dave Chinner To: Eric Sandeen Cc: xfs-oss Subject: Re: [PATCH V2] xfsprogs: use ASSERT_ALWAYS for impossible switch case Message-ID: <20140821225521.GR26465@dastard> X-ASG-Orig-Subj: Re: [PATCH V2] xfsprogs: use ASSERT_ALWAYS for impossible switch case References: <53F62D12.8010505@sandeen.net> <53F639F6.6050905@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F639F6.6050905@sandeen.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1408661722 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8706 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 21, 2014 at 01:27:02PM -0500, Eric Sandeen wrote: > The original reason for the expletive below has been lost > in the mists of time, but at any rate, ASSERT() goes away in > libxfs, and this leads static analysis checkers to believe that > XFS_BTNUM_MAX is possible, and that we might overflow an array > later when using it as an index. > > We can shut this up and mark it as truly impossible by adding > a userspace definition for ASSERT_ALWAYS and using it. > > Signed-off-by: Eric Sandeen > --- > > V2: do it in a kernel-compatible way. > > diff --git a/include/xfs_btree.h b/include/xfs_btree.h > index 2590d40..f24f787 100644 > --- a/include/xfs_btree.h > +++ b/include/xfs_btree.h > @@ -69,7 +69,7 @@ do { \ > case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(bmbt, stat); break; \ > case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(ibt, stat); break; \ > case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(fibt, stat); break; \ > - case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ > + case XFS_BTNUM_MAX: ASSERT_ALWAYS(0); /* fucking gcc */ ; break; \ > } \ > } while (0) > > @@ -83,7 +83,7 @@ do { \ > case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_ADD(bmbt, stat, val); break; \ > case XFS_BTNUM_INO: __XFS_BTREE_STATS_ADD(ibt, stat, val); break; \ > case XFS_BTNUM_FINO: __XFS_BTREE_STATS_ADD(fibt, stat, val); break; \ > - case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \ > + case XFS_BTNUM_MAX: ASSERT_ALWAYS(0); /* fucking gcc */ ; break; \ > } \ > } while (0) Which we don't want in kernel space, because we want that case to be optimised out by the compiler for production kernels.... What we should really do is properly abstract the btree stats structure and put a pointer into the cursor so that the switch statement can go away.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From sandeen@redhat.com Thu Aug 21 19:51:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C79357F53 for ; Thu, 21 Aug 2014 19:51:55 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A70E48F804B for ; Thu, 21 Aug 2014 17:51:52 -0700 (PDT) X-ASG-Debug-ID: 1408668711-04bdf010971d32e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id c3CeV1g5YXjbqtxM (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 21 Aug 2014 17:51:51 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7M0ppvt021167 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 21 Aug 2014 20:51:51 -0400 Received: from liberator.sandeen.net (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7M0pnnr026609 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Thu, 21 Aug 2014 20:51:50 -0400 Message-ID: <53F6942B.80808@redhat.com> Date: Thu, 21 Aug 2014 19:51:55 -0500 From: Eric Sandeen MIME-Version: 1.0 To: xfs-oss Subject: [PATCH 0/4] xfs: more code refactoring Content-Type: text/plain; charset=ISO-8859-1 X-ASG-Orig-Subj: [PATCH 0/4] xfs: more code refactoring Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408668711 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 combine some directory & rt code which was cut&paste long ago... libxfs/xfs_dir2.c | 67 +++--------------- libxfs/xfs_dir2.h | 2 libxfs/xfs_rtbitmap.c | 45 ++++++++++-- xfs_file.c | 178 ++++++++++++++------------------------------------ xfs_inode.c | 24 ++++-- xfs_log_recover.c | 83 ++++++++--------------- xfs_rtalloc.c | 55 --------------- xfs_rtalloc.h | 4 + xfs_symlink.c | 8 +- 9 files changed, 158 insertions(+), 308 deletions(-) From sandeen@sandeen.net Thu Aug 21 19:55:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 79BF17F53 for ; Thu, 21 Aug 2014 19:55:21 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 593B3304062 for ; Thu, 21 Aug 2014 17:55:17 -0700 (PDT) X-ASG-Debug-ID: 1408668915-04cb6c550025a180001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id KI3fedTMBwALi3JG for ; Thu, 21 Aug 2014 17:55:16 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 96844602D4F3; Thu, 21 Aug 2014 19:55:15 -0500 (CDT) Message-ID: <53F694F9.9030406@sandeen.net> Date: Thu, 21 Aug 2014 19:55:21 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH 1/4] xfs: check resblks before calling xfs_dir_canenter References: <53F6942B.80808@redhat.com> X-ASG-Orig-Subj: [PATCH 1/4] xfs: check resblks before calling xfs_dir_canenter In-Reply-To: <53F6942B.80808@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408668915 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8709 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Move the resblks test out of the xfs_dir_canenter, and into the caller. This makes a little more sense on the face of it; xfs_dir_canenter immediately returns if resblks !=0; and given some of the comments preceding the calls: * Check for ability to enter directory entry, if no space reserved. even more so. It also facilitates the next patch. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index 6cef221..ea84e1c 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -535,22 +535,17 @@ out_free: /* * See if this entry can be added to the directory without allocating space. - * First checks that the caller couldn't reserve enough space (resblks = 0). */ int xfs_dir_canenter( xfs_trans_t *tp, xfs_inode_t *dp, - struct xfs_name *name, /* name of entry to add */ - uint resblks) + struct xfs_name *name) /* name of entry to add */ { struct xfs_da_args *args; int rval; int v; /* type-checking value */ - if (resblks) - return 0; - ASSERT(S_ISDIR(dp->i_d.di_mode)); args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h index c8e86b0..4dff261 100644 --- a/fs/xfs/libxfs/xfs_dir2.h +++ b/fs/xfs/libxfs/xfs_dir2.h @@ -136,7 +136,7 @@ extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp, xfs_fsblock_t *first, struct xfs_bmap_free *flist, xfs_extlen_t tot); extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp, - struct xfs_name *name, uint resblks); + struct xfs_name *name); /* * Direct call from the bmap code, bypassing the generic directory layer. diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index fea3c92..c92cb48 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -1153,9 +1153,11 @@ xfs_create( if (error) goto out_trans_cancel; - error = xfs_dir_canenter(tp, dp, name, resblks); - if (error) - goto out_trans_cancel; + if (!resblks) { + error = xfs_dir_canenter(tp, dp, name); + if (error) + goto out_trans_cancel; + } /* * A newly created regular or special file just has one directory @@ -1421,9 +1423,11 @@ xfs_link( goto error_return; } - error = xfs_dir_canenter(tp, tdp, target_name, resblks); - if (error) - goto error_return; + if (!resblks) { + error = xfs_dir_canenter(tp, tdp, target_name); + if (error) + goto error_return; + } xfs_bmap_init(&free_list, &first_block); @@ -2759,9 +2763,11 @@ xfs_rename( * If there's no space reservation, check the entry will * fit before actually inserting it. */ - error = xfs_dir_canenter(tp, target_dp, target_name, spaceres); - if (error) - goto error_return; + if (!spaceres) { + error = xfs_dir_canenter(tp, target_dp, target_name); + if (error) + goto error_return; + } /* * If target does not exist and the rename crosses * directories, adjust the target directory link count diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c index 6a944a2..02ae62a 100644 --- a/fs/xfs/xfs_symlink.c +++ b/fs/xfs/xfs_symlink.c @@ -269,9 +269,11 @@ xfs_symlink( /* * Check for ability to enter directory entry, if no space reserved. */ - error = xfs_dir_canenter(tp, dp, link_name, resblks); - if (error) - goto error_return; + if (!resblks) { + error = xfs_dir_canenter(tp, dp, link_name); + if (error) + goto error_return; + } /* * Initialize the bmap freelist prior to calling either * bmapi or the directory create code. From sandeen@sandeen.net Thu Aug 21 19:58:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 08E977F53 for ; Thu, 21 Aug 2014 19:58:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E8FFD304062 for ; Thu, 21 Aug 2014 17:58:38 -0700 (PDT) X-ASG-Debug-ID: 1408669117-04cb6c54fd25a2a0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id AEKZGFn6GH67c15Z for ; Thu, 21 Aug 2014 17:58:37 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 485B3602D4F3; Thu, 21 Aug 2014 19:58:37 -0500 (CDT) Message-ID: <53F695C3.1020607@sandeen.net> Date: Thu, 21 Aug 2014 19:58:43 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH 2/4] xfs: combine xfs_dir_canenter into xfs_dir_createname References: <53F6942B.80808@redhat.com> X-ASG-Orig-Subj: [PATCH 2/4] xfs: combine xfs_dir_canenter into xfs_dir_createname In-Reply-To: <53F6942B.80808@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408669117 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8709 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfs_dir_canenter and xfs_dir_createname are almost identical. Fold the former into the latter, with a helpful wrapper for the former. If createname is called without an inode number, it now only checks for space, and does not actually add the entry. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index ea84e1c..fdd391f 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -237,7 +237,8 @@ xfs_dir_init( } /* - Enter a name in a directory. + * Enter a name in a directory. + * If inum is 0, only test for available space. */ int xfs_dir_createname( @@ -254,10 +255,12 @@ xfs_dir_createname( int v; /* type-checking value */ ASSERT(S_ISDIR(dp->i_d.di_mode)); - rval = xfs_dir_ino_validate(tp->t_mountp, inum); - if (rval) - return rval; - XFS_STATS_INC(xs_dir_create); + if (inum) { + rval = xfs_dir_ino_validate(tp->t_mountp, inum); + if (rval) + return rval; + XFS_STATS_INC(xs_dir_create); + } args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); if (!args) @@ -276,6 +279,8 @@ xfs_dir_createname( args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if (!inum) + args->op_flags |= XFS_DA_OP_JUSTCHECK; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_addname(args); @@ -542,50 +547,7 @@ xfs_dir_canenter( xfs_inode_t *dp, struct xfs_name *name) /* name of entry to add */ { - struct xfs_da_args *args; - int rval; - int v; /* type-checking value */ - - ASSERT(S_ISDIR(dp->i_d.di_mode)); - - args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); - if (!args) - return -ENOMEM; - - args->geo = dp->i_mount->m_dir_geo; - args->name = name->name; - args->namelen = name->len; - args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); - args->dp = dp; - args->whichfork = XFS_DATA_FORK; - args->trans = tp; - args->op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME | - XFS_DA_OP_OKNOENT; - - if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { - rval = xfs_dir2_sf_addname(args); - goto out_free; - } - - rval = xfs_dir2_isblock(args, &v); - if (rval) - goto out_free; - if (v) { - rval = xfs_dir2_block_addname(args); - goto out_free; - } - - rval = xfs_dir2_isleaf(args, &v); - if (rval) - goto out_free; - if (v) - rval = xfs_dir2_leaf_addname(args); - else - rval = xfs_dir2_node_addname(args); -out_free: - kmem_free(args); - return rval; + return xfs_dir_createname(tp, dp, name, 0, NULL, NULL, 0); } /* From sandeen@sandeen.net Thu Aug 21 20:00:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E91917F53 for ; Thu, 21 Aug 2014 20:00:41 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 670C7AC002 for ; Thu, 21 Aug 2014 18:00:41 -0700 (PDT) X-ASG-Debug-ID: 1408669239-04cbb054882af250001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id bIToUep8HaaYneYD for ; Thu, 21 Aug 2014 18:00:39 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 59460602D4F3; Thu, 21 Aug 2014 20:00:39 -0500 (CDT) Message-ID: <53F6963D.9090500@sandeen.net> Date: Thu, 21 Aug 2014 20:00:45 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary References: <53F6942B.80808@redhat.com> X-ASG-Orig-Subj: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary In-Reply-To: <53F6942B.80808@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408669239 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8709 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfs_rtmodify_summary and xfs_rtget_summary are almost identical; fold them into xfs_rtmodify_summary_int(), with wrappers for each of the original calls. The _int function modifies if a delta is passed, and returns a summary pointer if *sum is passed. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c index f4dd697..50e3b93 100644 --- a/fs/xfs/libxfs/xfs_rtbitmap.c +++ b/fs/xfs/libxfs/xfs_rtbitmap.c @@ -424,20 +424,24 @@ xfs_rtfind_forw( } /* - * Read and modify the summary information for a given extent size, + * Read and/or modify the summary information for a given extent size, * bitmap block combination. * Keeps track of a current summary block, so we don't keep reading * it from the buffer cache. + * + * Summary information is returned in *sum if specified. + * If no delta is specified, returns summary only. */ int -xfs_rtmodify_summary( - xfs_mount_t *mp, /* file system mount point */ +xfs_rtmodify_summary_int( + xfs_mount_t *mp, /* file system mount structure */ xfs_trans_t *tp, /* transaction pointer */ int log, /* log2 of extent size */ xfs_rtblock_t bbno, /* bitmap block number */ int delta, /* change to make to summary info */ xfs_buf_t **rbpp, /* in/out: summary block buffer */ - xfs_fsblock_t *rsb) /* in/out: summary block number */ + xfs_fsblock_t *rsb, /* in/out: summary block number */ + xfs_suminfo_t *sum) /* out: summary info for this block */ { xfs_buf_t *bp; /* buffer for the summary block */ int error; /* error value */ @@ -480,15 +484,40 @@ xfs_rtmodify_summary( } } /* - * Point to the summary information, modify and log it. + * Point to the summary information, modify/log it, and/or copy it out. */ sp = XFS_SUMPTR(mp, bp, so); - *sp += delta; - xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr), - (uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1)); + if (delta) { + uint first = (uint)((char *)sp - (char *)bp->b_addr); + + *sp += delta; + xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); + } + if (sum) { + /* + * Drop the buffer if we're not asked to remember it. + */ + if (!rbpp) + xfs_trans_brelse(tp, bp); + *sum = *sp; + } return 0; } +int +xfs_rtmodify_summary( + xfs_mount_t *mp, /* file system mount structure */ + xfs_trans_t *tp, /* transaction pointer */ + int log, /* log2 of extent size */ + xfs_rtblock_t bbno, /* bitmap block number */ + int delta, /* change to make to summary info */ + xfs_buf_t **rbpp, /* in/out: summary block buffer */ + xfs_fsblock_t *rsb) /* in/out: summary block number */ +{ + return xfs_rtmodify_summary_int(mp, tp, log, bbno, + delta, rbpp, rsb, NULL); +} + /* * Set the given range of bitmap bits to the given value. * Do whatever I/O and logging is required. diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 909e143..d1160cc 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -46,7 +46,7 @@ * Keeps track of a current summary block, so we don't keep reading * it from the buffer cache. */ -STATIC int /* error */ +int xfs_rtget_summary( xfs_mount_t *mp, /* file system mount structure */ xfs_trans_t *tp, /* transaction pointer */ @@ -56,60 +56,9 @@ xfs_rtget_summary( xfs_fsblock_t *rsb, /* in/out: summary block number */ xfs_suminfo_t *sum) /* out: summary info for this block */ { - xfs_buf_t *bp; /* buffer for summary block */ - int error; /* error value */ - xfs_fsblock_t sb; /* summary fsblock */ - int so; /* index into the summary file */ - xfs_suminfo_t *sp; /* pointer to returned data */ - - /* - * Compute entry number in the summary file. - */ - so = XFS_SUMOFFS(mp, log, bbno); - /* - * Compute the block number in the summary file. - */ - sb = XFS_SUMOFFSTOBLOCK(mp, so); - /* - * If we have an old buffer, and the block number matches, use that. - */ - if (rbpp && *rbpp && *rsb == sb) - bp = *rbpp; - /* - * Otherwise we have to get the buffer. - */ - else { - /* - * If there was an old one, get rid of it first. - */ - if (rbpp && *rbpp) - xfs_trans_brelse(tp, *rbpp); - error = xfs_rtbuf_get(mp, tp, sb, 1, &bp); - if (error) { - return error; - } - /* - * Remember this buffer and block for the next call. - */ - if (rbpp) { - *rbpp = bp; - *rsb = sb; - } - } - /* - * Point to the summary information & copy it out. - */ - sp = XFS_SUMPTR(mp, bp, so); - *sum = *sp; - /* - * Drop the buffer if we're not asked to remember it. - */ - if (!rbpp) - xfs_trans_brelse(tp, bp); - return 0; + return xfs_rtmodify_summary_int(mp, tp, log, bbno, 0, rbpp, rsb, sum); } - /* * Return whether there are any free extents in the size range given * by low and high, for the bitmap block bbno. diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h index c642795..76c0a4a 100644 --- a/fs/xfs/xfs_rtalloc.h +++ b/fs/xfs/xfs_rtalloc.h @@ -111,6 +111,10 @@ int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t *rtblock); int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp, xfs_rtblock_t start, xfs_extlen_t len, int val); +int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp, + int log, xfs_rtblock_t bbno, int delta, + xfs_buf_t **rbpp, xfs_fsblock_t *rsb, + xfs_suminfo_t *sum); int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log, xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp, xfs_fsblock_t *rsb); From sandeen@sandeen.net Thu Aug 21 20:03:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id AB2D57F53 for ; Thu, 21 Aug 2014 20:03:18 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3B282AC002 for ; Thu, 21 Aug 2014 18:03:15 -0700 (PDT) X-ASG-Debug-ID: 1408669393-04cb6c54ff25a4a0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 6QrhAoZAk8lAJBCf for ; Thu, 21 Aug 2014 18:03:13 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 98E566096EF1; Thu, 21 Aug 2014 20:03:13 -0500 (CDT) Message-ID: <53F696D7.2030906@sandeen.net> Date: Thu, 21 Aug 2014 20:03:19 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH 4/4] xfs: remove rbpp check from xfs_rtmodify_summary_int References: <53F6942B.80808@redhat.com> X-ASG-Orig-Subj: [PATCH 4/4] xfs: remove rbpp check from xfs_rtmodify_summary_int In-Reply-To: <53F6942B.80808@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408669393 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8709 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- rbpp is always passed into xfs_rtmodify_summary and xfs_rtget_summary, so there is no need to test for it in xfs_rtmodify_summary_int. Signed-off-by: Eric Sandeen --- diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c index 50e3b93..7c818f1 100644 --- a/fs/xfs/libxfs/xfs_rtbitmap.c +++ b/fs/xfs/libxfs/xfs_rtbitmap.c @@ -460,7 +460,7 @@ xfs_rtmodify_summary_int( /* * If we have an old buffer, and the block number matches, use that. */ - if (rbpp && *rbpp && *rsb == sb) + if (*rbpp && *rsb == sb) bp = *rbpp; /* * Otherwise we have to get the buffer. @@ -469,7 +469,7 @@ xfs_rtmodify_summary_int( /* * If there was an old one, get rid of it first. */ - if (rbpp && *rbpp) + if (*rbpp) xfs_trans_brelse(tp, *rbpp); error = xfs_rtbuf_get(mp, tp, sb, 1, &bp); if (error) { @@ -478,10 +478,8 @@ xfs_rtmodify_summary_int( /* * Remember this buffer and block for the next call. */ - if (rbpp) { - *rbpp = bp; - *rsb = sb; - } + *rbpp = bp; + *rsb = sb; } /* * Point to the summary information, modify/log it, and/or copy it out. @@ -493,14 +491,8 @@ xfs_rtmodify_summary_int( *sp += delta; xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); } - if (sum) { - /* - * Drop the buffer if we're not asked to remember it. - */ - if (!rbpp) - xfs_trans_brelse(tp, bp); + if (sum) *sum = *sp; - } return 0; } From bfoster@redhat.com Fri Aug 22 06:41:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 5A8627F53 for ; Fri, 22 Aug 2014 06:41:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 49292304081 for ; Fri, 22 Aug 2014 04:41:10 -0700 (PDT) X-ASG-Debug-ID: 1408707668-04cb6c54fd3b5a40001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Xc8yZp45MIDd9g6X (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 04:41:09 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MBf6wo001080 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 07:41:06 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MBf3V2004125 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 07:41:05 -0400 Date: Fri, 22 Aug 2014 07:35:41 -0400 From: Brian Foster To: Eric Sandeen Cc: Eric Sandeen , xfs-oss , Jeff Liu Subject: Re: [PATCH V2] xfs: combine xfs_seek_hole & xfs_seek_data Message-ID: <20140822113541.GD3152@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH V2] xfs: combine xfs_seek_hole & xfs_seek_data References: <53F55765.6030205@redhat.com> <53F64723.4070001@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F64723.4070001@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408707668 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 02:23:15PM -0500, Eric Sandeen wrote: > xfs_seek_hole & xfs_seek_data are remarkably similar; > so much so that they can be combined, saving a fair > bit of semi-complex code duplication. > > The following patch passes generic/285 and generic/286, > which specifically test seek behavior. > > Signed-off-by: Eric Sandeen > --- Looks good to me: Reviewed-by: Brian Foster > > V2: comment update as suggested by Brian > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 076b170..1da3b7d 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -964,7 +964,7 @@ xfs_vm_page_mkwrite( > > /* > * This type is designed to indicate the type of offset we would like > - * to search from page cache for either xfs_seek_data() or xfs_seek_hole(). > + * to search from page cache for xfs_seek_hole_data(). > */ > enum { > HOLE_OFF = 0, > @@ -1021,7 +1021,7 @@ xfs_lookup_buffer_offset( > /* > * This routine is called to find out and return a data or hole offset > * from the page cache for unwritten extents according to the desired > - * type for xfs_seek_data() or xfs_seek_hole(). > + * type for xfs_seek_hole_data(). > * > * The argument offset is used to tell where we start to search from the > * page cache. Map is used to figure out the end points of the range to > @@ -1181,9 +1181,10 @@ out: > } > > STATIC loff_t > -xfs_seek_data( > +xfs_seek_hole_data( > struct file *file, > - loff_t start) > + loff_t start, > + int whence) > { > struct inode *inode = file->f_mapping->host; > struct xfs_inode *ip = XFS_I(inode); > @@ -1195,6 +1196,9 @@ xfs_seek_data( > uint lock; > int error; > > + if (XFS_FORCED_SHUTDOWN(mp)) > + return -EIO; > + > lock = xfs_ilock_data_map_shared(ip); > > isize = i_size_read(inode); > @@ -1209,6 +1213,7 @@ xfs_seek_data( > */ > fsbno = XFS_B_TO_FSBT(mp, start); > end = XFS_B_TO_FSB(mp, isize); > + > for (;;) { > struct xfs_bmbt_irec map[2]; > int nmap = 2; > @@ -1229,29 +1234,48 @@ xfs_seek_data( > offset = max_t(loff_t, start, > XFS_FSB_TO_B(mp, map[i].br_startoff)); > > - /* Landed in a data extent */ > - if (map[i].br_startblock == DELAYSTARTBLOCK || > - (map[i].br_state == XFS_EXT_NORM && > - !isnullstartblock(map[i].br_startblock))) > + /* Landed in the hole we wanted? */ > + if (whence == SEEK_HOLE && > + map[i].br_startblock == HOLESTARTBLOCK) > + goto out; > + > + /* Landed in the data extent we wanted? */ > + if (whence == SEEK_DATA && > + (map[i].br_startblock == DELAYSTARTBLOCK || > + (map[i].br_state == XFS_EXT_NORM && > + !isnullstartblock(map[i].br_startblock)))) > goto out; > > /* > - * Landed in an unwritten extent, try to search data > - * from page cache. > + * Landed in an unwritten extent, try to search > + * for hole or data from page cache. > */ > if (map[i].br_state == XFS_EXT_UNWRITTEN) { > if (xfs_find_get_desired_pgoff(inode, &map[i], > - DATA_OFF, &offset)) > + whence == SEEK_HOLE ? HOLE_OFF : DATA_OFF, > + &offset)) > goto out; > } > } > > /* > - * map[0] is hole or its an unwritten extent but > - * without data in page cache. Probably means that > - * we are reading after EOF if nothing in map[1]. > + * We only received one extent out of the two requested. This > + * means we've hit EOF and didn't find what we are looking for. > */ > if (nmap == 1) { > + /* > + * If we were looking for a hole, set offset to > + * the end of the file (i.e., there is an implicit > + * hole at the end of any file). > + */ > + if (whence == SEEK_HOLE) { > + offset = isize; > + break; > + } > + /* > + * If we were looking for data, it's nowhere to be found > + */ > + ASSERT(whence == SEEK_DATA); > error = -ENXIO; > goto out_unlock; > } > @@ -1260,125 +1284,30 @@ xfs_seek_data( > > /* > * Nothing was found, proceed to the next round of search > - * if reading offset not beyond or hit EOF. > + * if the next reading offset is not at or beyond EOF. > */ > fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; > start = XFS_FSB_TO_B(mp, fsbno); > if (start >= isize) { > + if (whence == SEEK_HOLE) { > + offset = isize; > + break; > + } > + ASSERT(whence == SEEK_DATA); > error = -ENXIO; > goto out_unlock; > } > } > > out: > - offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); > - > -out_unlock: > - xfs_iunlock(ip, lock); > - > - if (error) > - return error; > - return offset; > -} > - > -STATIC loff_t > -xfs_seek_hole( > - struct file *file, > - loff_t start) > -{ > - struct inode *inode = file->f_mapping->host; > - struct xfs_inode *ip = XFS_I(inode); > - struct xfs_mount *mp = ip->i_mount; > - loff_t uninitialized_var(offset); > - xfs_fsize_t isize; > - xfs_fileoff_t fsbno; > - xfs_filblks_t end; > - uint lock; > - int error; > - > - if (XFS_FORCED_SHUTDOWN(mp)) > - return -EIO; > - > - lock = xfs_ilock_data_map_shared(ip); > - > - isize = i_size_read(inode); > - if (start >= isize) { > - error = -ENXIO; > - goto out_unlock; > - } > - > - fsbno = XFS_B_TO_FSBT(mp, start); > - end = XFS_B_TO_FSB(mp, isize); > - > - for (;;) { > - struct xfs_bmbt_irec map[2]; > - int nmap = 2; > - unsigned int i; > - > - error = xfs_bmapi_read(ip, fsbno, end - fsbno, map, &nmap, > - XFS_BMAPI_ENTIRE); > - if (error) > - goto out_unlock; > - > - /* No extents at given offset, must be beyond EOF */ > - if (nmap == 0) { > - error = -ENXIO; > - goto out_unlock; > - } > - > - for (i = 0; i < nmap; i++) { > - offset = max_t(loff_t, start, > - XFS_FSB_TO_B(mp, map[i].br_startoff)); > - > - /* Landed in a hole */ > - if (map[i].br_startblock == HOLESTARTBLOCK) > - goto out; > - > - /* > - * Landed in an unwritten extent, try to search hole > - * from page cache. > - */ > - if (map[i].br_state == XFS_EXT_UNWRITTEN) { > - if (xfs_find_get_desired_pgoff(inode, &map[i], > - HOLE_OFF, &offset)) > - goto out; > - } > - } > - > - /* > - * map[0] contains data or its unwritten but contains > - * data in page cache, probably means that we are > - * reading after EOF. We should fix offset to point > - * to the end of the file(i.e., there is an implicit > - * hole at the end of any file). > - */ > - if (nmap == 1) { > - offset = isize; > - break; > - } > - > - ASSERT(i > 1); > - > - /* > - * Both mappings contains data, proceed to the next round of > - * search if the current reading offset not beyond or hit EOF. > - */ > - fsbno = map[i - 1].br_startoff + map[i - 1].br_blockcount; > - start = XFS_FSB_TO_B(mp, fsbno); > - if (start >= isize) { > - offset = isize; > - break; > - } > - } > - > -out: > /* > - * At this point, we must have found a hole. However, the returned > + * If at this point we have found the hole we wanted, the returned > * offset may be bigger than the file size as it may be aligned to > - * page boundary for unwritten extents, we need to deal with this > + * page boundary for unwritten extents. We need to deal with this > * situation in particular. > */ > - offset = min_t(loff_t, offset, isize); > + if (whence == SEEK_HOLE) > + offset = min_t(loff_t, offset, isize); > offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); > > out_unlock: > @@ -1400,10 +1329,9 @@ xfs_file_llseek( > case SEEK_CUR: > case SEEK_SET: > return generic_file_llseek(file, offset, origin); > - case SEEK_DATA: > - return xfs_seek_data(file, offset); > case SEEK_HOLE: > - return xfs_seek_hole(file, offset); > + case SEEK_DATA: > + return xfs_seek_hole_data(file, offset, origin); > default: > return -EINVAL; > } > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 22 06:41:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id EDB887F58 for ; Fri, 22 Aug 2014 06:41:20 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DC9518F8052 for ; Fri, 22 Aug 2014 04:41:17 -0700 (PDT) X-ASG-Debug-ID: 1408707676-04cb6c54fd3b5eb0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id Zz9UrCGV2342gatg (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 04:41:17 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MBfFMk001119 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 07:41:15 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MBfCi2018584 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 07:41:14 -0400 Date: Fri, 22 Aug 2014 07:35:50 -0400 From: Brian Foster To: Eric Sandeen Cc: Eric Sandeen , xfs-oss , Jeff Liu Subject: Re: [PATCH] xfs: lseek: the "whence" argument is called "whence" Message-ID: <20140822113550.GE3152@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: lseek: the "whence" argument is called "whence" References: <53F55765.6030205@redhat.com> <53F64723.4070001@sandeen.net> <53F648CC.9080604@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F648CC.9080604@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408707677 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 02:30:20PM -0500, Eric Sandeen wrote: > For some reason, the older commit: > > 965c8e5 lseek: the "whence" argument is called "whence" > > lseek: the "whence" argument is called "whence" > > But the kernel decided to call it "origin" instead. > Fix most of the sites. > > left out xfs. So fix xfs. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index 1da3b7d..0fe36e4 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -1322,16 +1322,16 @@ STATIC loff_t > xfs_file_llseek( > struct file *file, > loff_t offset, > - int origin) > + int whence) > { > - switch (origin) { > + switch (whence) { > case SEEK_END: > case SEEK_CUR: > case SEEK_SET: > - return generic_file_llseek(file, offset, origin); > + return generic_file_llseek(file, offset, whence); > case SEEK_HOLE: > case SEEK_DATA: > - return xfs_seek_hole_data(file, offset, origin); > + return xfs_seek_hole_data(file, offset, whence); > default: > return -EINVAL; > } > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From jeff.liu@oracle.com Fri Aug 22 06:50:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 95E777F5E for ; Fri, 22 Aug 2014 06:50:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 23834AC005 for ; Fri, 22 Aug 2014 04:50:44 -0700 (PDT) X-ASG-Debug-ID: 1408708239-04cbb054855870a0001-NocioJ Received: from userp1040.oracle.com (userp1040.oracle.com [156.151.31.81]) by cuda.sgi.com with ESMTP id E8ilJEsfWymUWQbr (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 04:50:39 -0700 (PDT) X-Barracuda-Envelope-From: jeff.liu@oracle.com X-Barracuda-Apparent-Source-IP: 156.151.31.81 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s7MBocOx003272 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 22 Aug 2014 11:50:38 GMT Received: from userz7022.oracle.com (userz7022.oracle.com [156.151.31.86]) by ucsinet22.oracle.com (8.14.5+Sun/8.14.5) with ESMTP id s7MBobh4020247 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 22 Aug 2014 11:50:37 GMT Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by userz7022.oracle.com (8.14.5+Sun/8.14.4) with ESMTP id s7MBoagV020210; Fri, 22 Aug 2014 11:50:37 GMT Received: from [192.168.1.103] (/123.119.96.223) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 22 Aug 2014 04:50:35 -0700 Message-ID: <53F72E87.7060601@oracle.com> Date: Fri, 22 Aug 2014 19:50:31 +0800 From: Jeff Liu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Eric Sandeen , Eric Sandeen , xfs-oss Subject: Re: [PATCH V2] xfs: combine xfs_seek_hole & xfs_seek_data References: <53F55765.6030205@redhat.com> <53F64723.4070001@sandeen.net> X-ASG-Orig-Subj: Re: [PATCH V2] xfs: combine xfs_seek_hole & xfs_seek_data In-Reply-To: <53F64723.4070001@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: ucsinet22.oracle.com [156.151.31.94] X-Barracuda-Connect: userp1040.oracle.com[156.151.31.81] X-Barracuda-Start-Time: 1408708239 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8720 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 08/22/2014 03:23 AM, Eric Sandeen wrote: > xfs_seek_hole & xfs_seek_data are remarkably similar; > so much so that they can be combined, saving a fair > bit of semi-complex code duplication. > > The following patch passes generic/285 and generic/286, > which specifically test seek behavior. > > Signed-off-by: Eric Sandeen Looks good to me. Reviewed-by: Jie Liu Cheers, -Jeff From jeff.liu@oracle.com Fri Aug 22 06:54:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6C80C7F53 for ; Fri, 22 Aug 2014 06:54:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id ED650AC004 for ; Fri, 22 Aug 2014 04:54:38 -0700 (PDT) X-ASG-Debug-ID: 1408708476-04cb6c54fe3c42c0001-NocioJ Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) by cuda.sgi.com with ESMTP id U0vc7ZIKq9oksZNl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 04:54:37 -0700 (PDT) X-Barracuda-Envelope-From: jeff.liu@oracle.com X-Barracuda-Apparent-Source-IP: 141.146.126.69 Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s7MBsZha030739 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 22 Aug 2014 11:54:36 GMT Received: from aserz7022.oracle.com (aserz7022.oracle.com [141.146.126.231]) by ucsinet22.oracle.com (8.14.5+Sun/8.14.5) with ESMTP id s7MBsYK8028308 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 22 Aug 2014 11:54:34 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserz7022.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s7MBsYwA027649; Fri, 22 Aug 2014 11:54:34 GMT Received: from [192.168.1.103] (/123.119.96.223) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 22 Aug 2014 04:54:33 -0700 Message-ID: <53F72F76.9080301@oracle.com> Date: Fri, 22 Aug 2014 19:54:30 +0800 From: Jeff Liu User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Eric Sandeen , Eric Sandeen CC: xfs-oss Subject: Re: [PATCH] xfs: lseek: the "whence" argument is called "whence" References: <53F55765.6030205@redhat.com> <53F64723.4070001@sandeen.net> <53F648CC.9080604@redhat.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: lseek: the "whence" argument is called "whence" In-Reply-To: <53F648CC.9080604@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Source-IP: ucsinet22.oracle.com [156.151.31.94] X-Barracuda-Connect: aserp1040.oracle.com[141.146.126.69] X-Barracuda-Start-Time: 1408708477 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8720 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 08/22/2014 03:30 AM, Eric Sandeen wrote: > For some reason, the older commit: > > 965c8e5 lseek: the "whence" argument is called "whence" > > lseek: the "whence" argument is called "whence" > > But the kernel decided to call it "origin" instead. > Fix most of the sites. > > left out xfs. So fix xfs. > > Signed-off-by: Eric Sandeen Looks good to me too. Reviewed-by: Jie Liu Cheers, -Jeff From bfoster@redhat.com Fri Aug 22 07:07:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DE2787F53 for ; Fri, 22 Aug 2014 07:07:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 5E361AC003 for ; Fri, 22 Aug 2014 05:07:16 -0700 (PDT) X-ASG-Debug-ID: 1408709233-04cb6c54fd3c5e90001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id j8mlJpNxa6N6fxUC (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 05:07:14 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MC73r8016582 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 08:07:03 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MC6xvo017692 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 08:07:02 -0400 Date: Fri, 22 Aug 2014 08:06:59 -0400 From: Brian Foster To: Namjae Jeon Cc: Dave Chinner , "Theodore Ts'o" , linux-kernel@vger.kernel.org, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, =?utf-8?B?THVrw6HFoQ==?= Czerner , linux-ext4 Subject: Re: [PATCH v5 2/10] xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate Message-ID: <20140822120659.GF3152@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH v5 2/10] xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate References: <004301cfb2c6$6ef2d330$4cd87990$@samsung.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <004301cfb2c6$6ef2d330$4cd87990$@samsung.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408709234 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 08, 2014 at 02:05:55PM +0900, Namjae Jeon wrote: > This patch implements fallocate's FALLOC_FL_INSERT_RANGE for XFS. > > 1) Make sure that both offset and len are block size aligned. > 2) Update the i_size of inode by len bytes. > 3) Compute the file's logical block number against offset. If the computed > block number is not the starting block of the extent, split the extent > such that the block number is the starting block of the extent. > 4) Shift all the extents which are lying bewteen [offset, last allocated extent] > towards right by len bytes. This step will make a hole of len bytes > at offset. > > Signed-off-by: Namjae Jeon > Signed-off-by: Ashish Sangwan > Reviewed-by: Brian Foster > --- > Changelog > > v5: > - remove allocation part. > > v4: > - set cur->bc_private.b.allocated to zero before calling xfs_btree_del_cursor. > > v3: > - remove XFS_TRANS_RESERVE and assert. > - update the comment of blockcount calculation. > - use 'if(blockcount)' instead of 'if (got.br_blockcount < blockcount)'. > - move insert_file_space() calling under xfs_setattr_size to avoid code duplicate. > > v2: > - remove reserved enable. > - add xfs_qm_dqattach. > - reset blockcount in xfs_bmap_shift_extents_right. > - update i_size to avoid data loss before insert_file_space() is called. > - use in-memory extent array size that delayed allocation extents > > fs/xfs/libxfs/xfs_bmap.c | 379 ++++++++++++++++++++++++++++++++++++++++++++++- > fs/xfs/libxfs/xfs_bmap.h | 9 +- > fs/xfs/xfs_bmap_util.c | 123 ++++++++++++++- > fs/xfs/xfs_bmap_util.h | 2 + > fs/xfs/xfs_file.c | 38 ++++- > fs/xfs/xfs_trace.h | 1 + > 6 files changed, 547 insertions(+), 5 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c > index de2d26d..62f5aa7 100644 > --- a/fs/xfs/libxfs/xfs_bmap.c > +++ b/fs/xfs/libxfs/xfs_bmap.c > @@ -5413,7 +5413,7 @@ error0: > * into, this will be considered invalid operation and we abort immediately. > */ > int > -xfs_bmap_shift_extents( > +xfs_bmap_shift_extents_left( > struct xfs_trans *tp, > struct xfs_inode *ip, > int *done, > @@ -5443,7 +5443,7 @@ xfs_bmap_shift_extents( > (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && > XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), > mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { > - XFS_ERROR_REPORT("xfs_bmap_shift_extents", > + XFS_ERROR_REPORT("xfs_bmap_shift_extents_left", > XFS_ERRLEVEL_LOW, mp); > return -EFSCORRUPTED; > } > @@ -5600,3 +5600,378 @@ del_cursor: > xfs_trans_log_inode(tp, ip, logflags); > return error; > } > + > +/* > + * Splits an extent into two extents at split_fsb block that it is > + * the first block of the current_ext. @current_ext is a target extent > + * to be splitted. @split_fsb is a block where the extents is spliited. > + * If split_fsb lies in a hole or the first block of extents, just return 0. > + */ > +STATIC int > +xfs_bmap_split_extent_at( > + struct xfs_trans *tp, > + struct xfs_inode *ip, > + xfs_fileoff_t split_fsb, > + xfs_extnum_t *current_ext, > + xfs_fsblock_t *firstfsb, > + struct xfs_bmap_free *free_list) > +{ > + int whichfork = XFS_DATA_FORK; > + struct xfs_btree_cur *cur; > + struct xfs_bmbt_rec_host *gotp; > + struct xfs_bmbt_irec got; > + struct xfs_bmbt_irec new; /* splitted extent */ > + struct xfs_mount *mp = ip->i_mount; > + struct xfs_ifork *ifp; > + xfs_fsblock_t gotblkcnt; /* new block count for got */ > + int error = 0; > + int logflags; > + int i = 0; > + > + if (unlikely(XFS_TEST_ERROR( > + (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && > + XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), > + mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { > + XFS_ERROR_REPORT("xfs_bmap_split_extent_at", > + XFS_ERRLEVEL_LOW, mp); > + return -EFSCORRUPTED; > + } > + > + if (XFS_FORCED_SHUTDOWN(mp)) > + return -EIO; > + > + ASSERT(current_ext != NULL); > + > + ifp = XFS_IFORK_PTR(ip, whichfork); > + if (!(ifp->if_flags & XFS_IFEXTENTS)) { > + /* Read in all the extents */ > + error = xfs_iread_extents(tp, ip, whichfork); > + if (error) > + return error; > + } > + > + gotp = xfs_iext_bno_to_ext(ifp, split_fsb, current_ext); > + /* > + * gotp can be null in 2 cases: 1) if there are no extents > + * or 2) split_fsb lies in a hole beyond which there are > + * no extents. Either way, we are done. > + */ > + if (!gotp) > + return 0; > + > + xfs_bmbt_get_all(gotp, &got); > + > + /* > + * Check split_fsb lies in a hole or the start boundary offset > + * of the extent. > + */ > + if (got.br_startoff >= split_fsb) > + return 0; > + > + gotblkcnt = split_fsb - got.br_startoff; > + new.br_startoff = split_fsb; > + new.br_startblock = got.br_startblock + gotblkcnt; > + new.br_blockcount = got.br_blockcount - gotblkcnt; > + new.br_state = got.br_state; > + > + /* We are going to change core inode */ > + logflags = XFS_ILOG_CORE; > + > + if (ifp->if_flags & XFS_IFBROOT) { > + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); > + cur->bc_private.b.firstblock = *firstfsb; > + cur->bc_private.b.flist = free_list; > + cur->bc_private.b.flags = 0; > + } else { > + cur = NULL; > + logflags |= XFS_ILOG_DEXT; > + } > + > + if (cur) { > + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > + got.br_startblock, > + got.br_blockcount, > + &i); > + if (error) > + goto del_cursor; > + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); > + } > + > + xfs_bmbt_set_blockcount(gotp, gotblkcnt); > + got.br_blockcount = gotblkcnt; > + if (cur) { > + error = xfs_bmbt_update(cur, got.br_startoff, > + got.br_startblock, > + got.br_blockcount, > + got.br_state); > + if (error) > + goto del_cursor; > + } > + > + /* Add new extent */ > + (*current_ext)++; > + xfs_iext_insert(ip, *current_ext, 1, &new, 0); > + XFS_IFORK_NEXT_SET(ip, whichfork, > + XFS_IFORK_NEXTENTS(ip, whichfork) + 1); > + > + if (cur) { > + error = xfs_bmbt_lookup_eq(cur, new.br_startoff, > + new.br_startblock, new.br_blockcount, > + &i); > + if (error) > + goto del_cursor; > + XFS_WANT_CORRUPTED_GOTO(i == 0, del_cursor); > + cur->bc_rec.b.br_state = new.br_state; > + > + error = xfs_btree_insert(cur, &i); > + if (error) > + goto del_cursor; > + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); > + } > + > + /* > + * Convert to a btree if necessary. > + */ > + if (xfs_bmap_needs_btree(ip, whichfork)) { > + int tmp_logflags; /* partial log flag return val */ > + > + ASSERT(cur == NULL); > + error = xfs_bmap_extents_to_btree(tp, ip, firstfsb, free_list, > + &cur, 0, &tmp_logflags, whichfork); > + logflags |= tmp_logflags; > + } > + > +del_cursor: > + if (cur) { > + cur->bc_private.b.allocated = 0; > + xfs_btree_del_cursor(cur, > + error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); > + } > + xfs_trans_log_inode(tp, ip, logflags); > + return error; > +} > + > +int > +xfs_bmap_split_extent( > + struct xfs_inode *ip, > + xfs_fileoff_t split_fsb, > + xfs_extnum_t *split_ext) > +{ > + struct xfs_mount *mp = ip->i_mount; > + struct xfs_trans *tp; > + struct xfs_bmap_free free_list; > + xfs_fsblock_t firstfsb; > + int committed; > + int error; > + > + tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); > + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, > + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0); > + > + if (error) { > + /* > + * Free the transaction structure. > + */ > + xfs_trans_cancel(tp, 0); > + return error; > + } > + > + xfs_ilock(ip, XFS_ILOCK_EXCL); > + error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot, > + ip->i_gdquot, ip->i_pdquot, > + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, > + XFS_QMOPT_RES_REGBLKS); > + if (error) > + goto error1; > + > + xfs_trans_ijoin(tp, ip, 0); > + xfs_bmap_init(&free_list, &firstfsb); > + > + error = xfs_bmap_split_extent_at(tp, ip, split_fsb, split_ext, > + &firstfsb, &free_list); > + if (error) > + goto error0; > + > + error = xfs_bmap_finish(&tp, &free_list, &committed); > + if (error) > + goto error0; > + > + error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); > + xfs_iunlock(ip, XFS_ILOCK_EXCL); > + > + return error; > +error0: > + xfs_bmap_cancel(&free_list); > +error1: > + xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); > + xfs_iunlock(ip, XFS_ILOCK_EXCL); > + return error; > +} > + > +/* > + * Shift extent records to the right to make a hole. > + * The maximum number of extents to be shifted in a single operation > + * is @num_exts, and @current_ext keeps track of the current extent > + * index we have shifted. @offset_shift_fsb is the length by which each > + * extent is shifted. @end_ext is the last extent to be shifted. > + */ > +int > +xfs_bmap_shift_extents_right( > + struct xfs_trans *tp, > + struct xfs_inode *ip, > + int *done, > + xfs_fileoff_t offset_shift_fsb, > + xfs_extnum_t *current_ext, > + xfs_extnum_t end_ext, > + xfs_fsblock_t *firstblock, > + struct xfs_bmap_free *flist, > + int num_exts) > +{ > + struct xfs_mount *mp = ip->i_mount; > + struct xfs_btree_cur *cur; > + struct xfs_bmbt_rec_host *gotp; > + struct xfs_bmbt_irec got; > + struct xfs_bmbt_irec right; > + xfs_ifork_t *ifp; > + xfs_fileoff_t startoff; > + xfs_filblks_t blockcount = 0; > + xfs_extnum_t last_extent; > + int error = 0; > + int i; > + int whichfork = XFS_DATA_FORK; > + int logflags; > + > + if (unlikely(XFS_TEST_ERROR( > + (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && > + XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE), > + mp, XFS_ERRTAG_BMAPIFORMAT, XFS_RANDOM_BMAPIFORMAT))) { > + XFS_ERROR_REPORT("xfs_bmap_shift_extents_right", > + XFS_ERRLEVEL_LOW, mp); > + return -EFSCORRUPTED; > + } > + > + if (XFS_FORCED_SHUTDOWN(mp)) > + return -EIO; > + > + ASSERT(current_ext != NULL); > + > + /* We are going to change core inode */ > + logflags = XFS_ILOG_CORE; > + ifp = XFS_IFORK_PTR(ip, whichfork); > + > + if (ifp->if_flags & XFS_IFBROOT) { > + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); > + cur->bc_private.b.firstblock = *firstblock; > + cur->bc_private.b.flist = flist; > + cur->bc_private.b.flags = 0; > + } else { > + cur = NULL; > + logflags |= XFS_ILOG_DEXT; > + } > + > + /* start shifting extents to right */ > + while (num_exts-- > 0) { > + blockcount = 0; > + > + if (*current_ext < end_ext) { > + *done = 1; > + break; > + } > + > + gotp = xfs_iext_get_ext(ifp, *current_ext); > + xfs_bmbt_get_all(gotp, &got); > + startoff = got.br_startoff + offset_shift_fsb; > + > + /* > + * Before shifting extent into hole, make sure that the hole > + * is large enough to accomodate the shift. This checking has > + * to be performed for all except the last extent. > + */ > + last_extent = (ifp->if_bytes / sizeof(xfs_bmbt_rec_t)) - 1; > + if (last_extent != *current_ext) { > + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, > + *current_ext + 1), &right); > + if (startoff + got.br_blockcount > right.br_startoff) { > + error = -EINVAL; > + if (error) > + goto del_cursor; > + } > + } > + > + /* Check if we can merge 2 adjacent extents */ > + if (last_extent != *current_ext && > + right.br_startoff == startoff + got.br_blockcount && > + right.br_startblock == > + got.br_startblock + got.br_blockcount && > + right.br_state == got.br_state && > + right.br_blockcount + got.br_blockcount <= MAXEXTLEN) { > + > + /* > + * Merge the current extent with the extent to > + * the right. Remove the right extent, calculate > + * a new block count for the current extent to cover > + * the range of both and decrement the number of extents > + * in the fork. > + */ > + blockcount = right.br_blockcount + got.br_blockcount; > + > + if (cur) { > + error = xfs_bmbt_lookup_eq(cur, > + right.br_startoff, > + right.br_startblock, > + right.br_blockcount, > + &i); > + if (error) > + goto del_cursor; > + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); > + } > + > + xfs_iext_remove(ip, *current_ext + 1, 1, 0); > + if (cur) { > + error = xfs_btree_delete(cur, &i); > + if (error) > + goto del_cursor; > + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); > + } > + XFS_IFORK_NEXT_SET(ip, whichfork, > + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); > + > + } > + > + if (cur) { > + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, > + got.br_startblock, > + got.br_blockcount, > + &i); > + if (error) > + goto del_cursor; > + XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); > + } > + > + if (blockcount) { > + xfs_bmbt_set_blockcount(gotp, blockcount); > + got.br_blockcount = blockcount; > + } > + > + xfs_bmbt_set_startoff(gotp, startoff); > + got.br_startoff = startoff; > + > + if (cur) { > + error = xfs_bmbt_update(cur, got.br_startoff, > + got.br_startblock, > + got.br_blockcount, > + got.br_state); > + if (error) > + goto del_cursor; > + } > + > + (*current_ext)--; > + } > + > +del_cursor: > + if (cur) > + xfs_btree_del_cursor(cur, > + error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); > + xfs_trans_log_inode(tp, ip, logflags); > + return error; > +} > diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h > index b879ca5..135cf81 100644 > --- a/fs/xfs/libxfs/xfs_bmap.h > +++ b/fs/xfs/libxfs/xfs_bmap.h > @@ -177,10 +177,17 @@ int xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip, > int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, > xfs_extnum_t num); > uint xfs_default_attroffset(struct xfs_inode *ip); > -int xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip, > +int xfs_bmap_shift_extents_left(struct xfs_trans *tp, struct xfs_inode *ip, > int *done, xfs_fileoff_t start_fsb, > xfs_fileoff_t offset_shift_fsb, xfs_extnum_t *current_ext, > xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, > int num_exts); > +int xfs_bmap_split_extent(struct xfs_inode *ip, xfs_fileoff_t split_offset, > + xfs_extnum_t *split_ext); > +int xfs_bmap_shift_extents_right(struct xfs_trans *tp, struct xfs_inode *ip, > + int *done, xfs_fsblock_t offset_shift_fsb, > + xfs_extnum_t *current_ext, xfs_extnum_t end_ext, > + xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, > + int num_exts); > > #endif /* __XFS_BMAP_H__ */ > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index d32889a..815584e 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1505,7 +1505,7 @@ xfs_collapse_file_space( > * We are using the write transaction in which max 2 bmbt > * updates are allowed > */ > - error = xfs_bmap_shift_extents(tp, ip, &done, start_fsb, > + error = xfs_bmap_shift_extents_left(tp, ip, &done, start_fsb, > shift_fsb, ¤t_ext, > &first_block, &free_list, > XFS_BMAP_MAX_SHIFT_EXTENTS); > @@ -1529,6 +1529,127 @@ out: > } > > /* > + * xfs_insert_file_space() > + * This routine create hole space by shifting extents for the given file. > + * The first thing we do is to sync dirty data and invalidate page cache > + * over the region on which insert range is working. And split an extent > + * to two extents at given offset by calling xfs_bmap_split_extent. > + * And shift all extent records which are laying between [offset, > + * last allocated extent] to the right to reserve hole range. > + * RETURNS: > + * 0 on success > + * errno on error > + * > + */ > +int > +xfs_insert_file_space( > + struct xfs_inode *ip, > + loff_t offset, > + loff_t len) > +{ > + struct xfs_mount *mp = ip->i_mount; > + struct xfs_trans *tp; > + struct xfs_bmap_free free_list; > + xfs_fsblock_t first_block; > + xfs_ifork_t *ifp; > + int done = 0; > + int committed; > + int error; > + uint rounding; > + xfs_fileoff_t start_fsb; > + xfs_fileoff_t shift_fsb; > + xfs_extnum_t split_ext; > + xfs_extnum_t current_ext = 0; > + xfs_off_t ioffset; > + > + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); > + trace_xfs_insert_file_space(ip); > + > + error = xfs_qm_dqattach(ip, 0); > + if (error) > + return error; > + > + /* wait for the completion of any pending DIOs */ > + inode_dio_wait(VFS_I(ip)); > + > + rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE); > + ioffset = offset & ~(rounding - 1); > + error = -filemap_write_and_wait_range(VFS_I(ip)->i_mapping, > + ioffset, -1); > + if (error) > + return error; > + > + truncate_pagecache_range(VFS_I(ip), ioffset, -1); > + > + start_fsb = XFS_B_TO_FSB(mp, offset); > + shift_fsb = XFS_B_TO_FSB(mp, len); > + > + error = xfs_bmap_split_extent(ip, start_fsb, &split_ext); > + if (error) > + return error; > + > + ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); > + current_ext = (ifp->if_bytes / sizeof(xfs_bmbt_rec_t)) - 1; > + while (!error && !done) { > + tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT); > + /* > + * We would need to reserve permanent block for transaction. > + * This will come into picture when after shifting extent into > + * hole we found that adjacent extents can be merged which > + * may lead to freeing of a block during record update. > + */ > + error = xfs_trans_reserve(tp, &M_RES(mp)->tr_write, > + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0); > + if (error) { > + xfs_trans_cancel(tp, 0); > + break; > + } > + > + xfs_ilock(ip, XFS_ILOCK_EXCL); > + error = xfs_trans_reserve_quota(tp, mp, ip->i_udquot, > + ip->i_gdquot, ip->i_pdquot, > + XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, > + XFS_QMOPT_RES_REGBLKS); > + if (error) > + goto error1; > + > + xfs_trans_ijoin(tp, ip, 0); > + > + xfs_bmap_init(&free_list, &first_block); > + > + /* > + * We are using the write transaction in which max 2 bmbt > + * updates are allowed > + */ > + error = xfs_bmap_shift_extents_right(tp, ip, &done, shift_fsb, > + ¤t_ext, split_ext, > + &first_block, &free_list, > + XFS_BMAP_MAX_SHIFT_EXTENTS); > + if (error) > + goto error0; > + > + error = xfs_bmap_finish(&tp, &free_list, &committed); > + if (error) > + goto error0; > + > + error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); > + xfs_iunlock(ip, XFS_ILOCK_EXCL); > + if (error) > + goto out; > + } Hi Namjae, Sorry for finding things so late, but it looks like this suffers from the same couple bugs we've recently discovered with the collapse range patches. See the following for a couple fixes that have been proposed recently: http://oss.sgi.com/archives/xfs/2014-08/msg00292.html This one helps prevent scenarios where we try to cancel a transaction that is dirty. This leads to a shutdown on XFS. The idea is basically to avoid logging until we actually make a change, so errors hit early in the function (before we change anything) won't lead to an abort in the error path. It looks like the bmap split and shift functions in this patch could use the very same attention. http://oss.sgi.com/archives/xfs/2014-08/index.html This one deals with a problem with the high level shift algorithm. The problem with the algorithm here is that 'current_ext' can change unexpectedly once we release the ilock due to writeback on parts of the file before the range being collapsed/inserted. E.g., it is not a stable index once ilock is dropped. The temporary solution is to flush the entire file, since we have the iolock during the entire operation and nothing else can dirty the file. The better fix is to track via an offset across iterations of the shift, rather than the extent count (iirc, xfs_bunmapi() and other bmap functions provide examples of this kind of algorithm). Brian P.S., It's probably a good idea to remove my r-b tag on the next post as well to avoid confusion and remind me that I need to take another look at this. ;) Thanks again. > + > +out: > + return error; > + > +error0: > + xfs_bmap_cancel(&free_list); > +error1: > + xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT); > + xfs_iunlock(ip, XFS_ILOCK_EXCL); > + return error; > +} > + > +/* > * We need to check that the format of the data fork in the temporary inode is > * valid for the target inode before doing the swap. This is not a problem with > * attr1 because of the fixed fork offset, but attr2 has a dynamically sized > diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h > index 2fdb72d..6cb116c 100644 > --- a/fs/xfs/xfs_bmap_util.h > +++ b/fs/xfs/xfs_bmap_util.h > @@ -98,6 +98,8 @@ int xfs_zero_file_space(struct xfs_inode *ip, xfs_off_t offset, > xfs_off_t len); > int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset, > xfs_off_t len); > +int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset, > + xfs_off_t len); > > /* EOF block manipulation functions */ > bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force); > diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c > index fcf91a2..09c82e7 100644 > --- a/fs/xfs/xfs_file.c > +++ b/fs/xfs/xfs_file.c > @@ -771,11 +771,13 @@ xfs_file_fallocate( > struct xfs_trans *tp; > long error; > loff_t new_size = 0; > + int do_file_insert = 0; > > if (!S_ISREG(inode->i_mode)) > return -EINVAL; > if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE | > - FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE)) > + FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE | > + FALLOC_FL_INSERT_RANGE)) > return -EOPNOTSUPP; > > xfs_ilock(ip, XFS_IOLOCK_EXCL); > @@ -805,6 +807,28 @@ xfs_file_fallocate( > error = xfs_collapse_file_space(ip, offset, len); > if (error) > goto out_unlock; > + } else if (mode & FALLOC_FL_INSERT_RANGE) { > + unsigned blksize_mask = (1 << inode->i_blkbits) - 1; > + > + if (offset & blksize_mask || len & blksize_mask) { > + error = -EINVAL; > + goto out_unlock; > + } > + > + /* Check for wrap through zero */ > + if (inode->i_size + len > inode->i_sb->s_maxbytes) { > + error = -EFBIG; > + goto out_unlock; > + } > + > + /* Offset should be less than i_size */ > + if (offset >= i_size_read(inode)) { > + error = -EINVAL; > + goto out_unlock; > + } > + > + new_size = i_size_read(inode) + len; > + do_file_insert = 1; > } else { > if (!(mode & FALLOC_FL_KEEP_SIZE) && > offset + len > i_size_read(inode)) { > @@ -855,8 +879,20 @@ xfs_file_fallocate( > iattr.ia_valid = ATTR_SIZE; > iattr.ia_size = new_size; > error = xfs_setattr_size(ip, &iattr); > + if (error) > + goto out_unlock; > } > > + /* > + * Some operations are performed after the inode size is updated. For > + * example, insert range expands the address space of the file, shifts > + * all subsequent extents to create a hole inside the file. Updating > + * the size first ensures that shifted extents aren't left hanging > + * past EOF in the event of a crash or failure. > + */ > + if (do_file_insert) > + error = xfs_insert_file_space(ip, offset, len); > + > out_unlock: > xfs_iunlock(ip, XFS_IOLOCK_EXCL); > return error; > diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h > index 152f827..8943c9f 100644 > --- a/fs/xfs/xfs_trace.h > +++ b/fs/xfs/xfs_trace.h > @@ -663,6 +663,7 @@ DEFINE_INODE_EVENT(xfs_alloc_file_space); > DEFINE_INODE_EVENT(xfs_free_file_space); > DEFINE_INODE_EVENT(xfs_zero_file_space); > DEFINE_INODE_EVENT(xfs_collapse_file_space); > +DEFINE_INODE_EVENT(xfs_insert_file_space); > DEFINE_INODE_EVENT(xfs_readdir); > #ifdef CONFIG_XFS_POSIX_ACL > DEFINE_INODE_EVENT(xfs_get_acl); > -- > 1.7.11-rc0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 22 08:19:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id E69947F53 for ; Fri, 22 Aug 2014 08:19:38 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id A3565304075 for ; Fri, 22 Aug 2014 06:19:35 -0700 (PDT) X-ASG-Debug-ID: 1408713574-04bdf010a137c100001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 029lzvy9hNrWcHSg (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 06:19:34 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDJXxP015988 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 09:19:33 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDJVpu013367 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 09:19:33 -0400 Date: Fri, 22 Aug 2014 09:19:31 -0400 From: Brian Foster To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH 1/4] xfs: check resblks before calling xfs_dir_canenter Message-ID: <20140822131930.GA3915@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: check resblks before calling xfs_dir_canenter References: <53F6942B.80808@redhat.com> <53F694F9.9030406@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F694F9.9030406@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408713574 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 07:55:21PM -0500, Eric Sandeen wrote: > Move the resblks test out of the xfs_dir_canenter, > and into the caller. > > This makes a little more sense on the face of it; > xfs_dir_canenter immediately returns if resblks !=0; > and given some of the comments preceding the calls: > > * Check for ability to enter directory entry, if no space reserved. > > even more so. > > It also facilitates the next patch. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > > > diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c > index 6cef221..ea84e1c 100644 > --- a/fs/xfs/libxfs/xfs_dir2.c > +++ b/fs/xfs/libxfs/xfs_dir2.c > @@ -535,22 +535,17 @@ out_free: > > /* > * See if this entry can be added to the directory without allocating space. > - * First checks that the caller couldn't reserve enough space (resblks = 0). > */ > int > xfs_dir_canenter( > xfs_trans_t *tp, > xfs_inode_t *dp, > - struct xfs_name *name, /* name of entry to add */ > - uint resblks) > + struct xfs_name *name) /* name of entry to add */ > { > struct xfs_da_args *args; > int rval; > int v; /* type-checking value */ > > - if (resblks) > - return 0; > - > ASSERT(S_ISDIR(dp->i_d.di_mode)); > > args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); > diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h > index c8e86b0..4dff261 100644 > --- a/fs/xfs/libxfs/xfs_dir2.h > +++ b/fs/xfs/libxfs/xfs_dir2.h > @@ -136,7 +136,7 @@ extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp, > xfs_fsblock_t *first, > struct xfs_bmap_free *flist, xfs_extlen_t tot); > extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp, > - struct xfs_name *name, uint resblks); > + struct xfs_name *name); > > /* > * Direct call from the bmap code, bypassing the generic directory layer. > diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c > index fea3c92..c92cb48 100644 > --- a/fs/xfs/xfs_inode.c > +++ b/fs/xfs/xfs_inode.c > @@ -1153,9 +1153,11 @@ xfs_create( > if (error) > goto out_trans_cancel; > > - error = xfs_dir_canenter(tp, dp, name, resblks); > - if (error) > - goto out_trans_cancel; > + if (!resblks) { > + error = xfs_dir_canenter(tp, dp, name); > + if (error) > + goto out_trans_cancel; > + } > > /* > * A newly created regular or special file just has one directory > @@ -1421,9 +1423,11 @@ xfs_link( > goto error_return; > } > > - error = xfs_dir_canenter(tp, tdp, target_name, resblks); > - if (error) > - goto error_return; > + if (!resblks) { > + error = xfs_dir_canenter(tp, tdp, target_name); > + if (error) > + goto error_return; > + } > > xfs_bmap_init(&free_list, &first_block); > > @@ -2759,9 +2763,11 @@ xfs_rename( > * If there's no space reservation, check the entry will > * fit before actually inserting it. > */ > - error = xfs_dir_canenter(tp, target_dp, target_name, spaceres); > - if (error) > - goto error_return; > + if (!spaceres) { > + error = xfs_dir_canenter(tp, target_dp, target_name); > + if (error) > + goto error_return; > + } > /* > * If target does not exist and the rename crosses > * directories, adjust the target directory link count > diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c > index 6a944a2..02ae62a 100644 > --- a/fs/xfs/xfs_symlink.c > +++ b/fs/xfs/xfs_symlink.c > @@ -269,9 +269,11 @@ xfs_symlink( > /* > * Check for ability to enter directory entry, if no space reserved. > */ > - error = xfs_dir_canenter(tp, dp, link_name, resblks); > - if (error) > - goto error_return; > + if (!resblks) { > + error = xfs_dir_canenter(tp, dp, link_name); > + if (error) > + goto error_return; > + } > /* > * Initialize the bmap freelist prior to calling either > * bmapi or the directory create code. > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 22 08:19:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 02F017F58 for ; Fri, 22 Aug 2014 08:19:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id DAE83304053 for ; Fri, 22 Aug 2014 06:19:43 -0700 (PDT) X-ASG-Debug-ID: 1408713582-04cb6c54fd3fd420001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id ZKCzRT0s1UjfEE60 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 06:19:42 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDJfRc008308 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 09:19:41 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDJdtK027691 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 09:19:41 -0400 Date: Fri, 22 Aug 2014 09:19:39 -0400 From: Brian Foster To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH 2/4] xfs: combine xfs_dir_canenter into xfs_dir_createname Message-ID: <20140822131938.GB3915@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: combine xfs_dir_canenter into xfs_dir_createname References: <53F6942B.80808@redhat.com> <53F695C3.1020607@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F695C3.1020607@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408713582 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 07:58:43PM -0500, Eric Sandeen wrote: > xfs_dir_canenter and xfs_dir_createname are > almost identical. > > Fold the former into the latter, with a helpful > wrapper for the former. If createname is called without > an inode number, it now only checks for space, and does > not actually add the entry. > > Signed-off-by: Eric Sandeen > --- Reviewed-by: Brian Foster > > diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c > index ea84e1c..fdd391f 100644 > --- a/fs/xfs/libxfs/xfs_dir2.c > +++ b/fs/xfs/libxfs/xfs_dir2.c > @@ -237,7 +237,8 @@ xfs_dir_init( > } > > /* > - Enter a name in a directory. > + * Enter a name in a directory. > + * If inum is 0, only test for available space. > */ > int > xfs_dir_createname( > @@ -254,10 +255,12 @@ xfs_dir_createname( > int v; /* type-checking value */ > > ASSERT(S_ISDIR(dp->i_d.di_mode)); > - rval = xfs_dir_ino_validate(tp->t_mountp, inum); > - if (rval) > - return rval; > - XFS_STATS_INC(xs_dir_create); > + if (inum) { > + rval = xfs_dir_ino_validate(tp->t_mountp, inum); > + if (rval) > + return rval; > + XFS_STATS_INC(xs_dir_create); > + } > > args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); > if (!args) > @@ -276,6 +279,8 @@ xfs_dir_createname( > args->whichfork = XFS_DATA_FORK; > args->trans = tp; > args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; > + if (!inum) > + args->op_flags |= XFS_DA_OP_JUSTCHECK; > > if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { > rval = xfs_dir2_sf_addname(args); > @@ -542,50 +547,7 @@ xfs_dir_canenter( > xfs_inode_t *dp, > struct xfs_name *name) /* name of entry to add */ > { > - struct xfs_da_args *args; > - int rval; > - int v; /* type-checking value */ > - > - ASSERT(S_ISDIR(dp->i_d.di_mode)); > - > - args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); > - if (!args) > - return -ENOMEM; > - > - args->geo = dp->i_mount->m_dir_geo; > - args->name = name->name; > - args->namelen = name->len; > - args->filetype = name->type; > - args->hashval = dp->i_mount->m_dirnameops->hashname(name); > - args->dp = dp; > - args->whichfork = XFS_DATA_FORK; > - args->trans = tp; > - args->op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME | > - XFS_DA_OP_OKNOENT; > - > - if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { > - rval = xfs_dir2_sf_addname(args); > - goto out_free; > - } > - > - rval = xfs_dir2_isblock(args, &v); > - if (rval) > - goto out_free; > - if (v) { > - rval = xfs_dir2_block_addname(args); > - goto out_free; > - } > - > - rval = xfs_dir2_isleaf(args, &v); > - if (rval) > - goto out_free; > - if (v) > - rval = xfs_dir2_leaf_addname(args); > - else > - rval = xfs_dir2_node_addname(args); > -out_free: > - kmem_free(args); > - return rval; > + return xfs_dir_createname(tp, dp, name, 0, NULL, NULL, 0); > } > > /* > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 22 08:19:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1DA387F53 for ; Fri, 22 Aug 2014 08:19:58 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id E35DD304053 for ; Fri, 22 Aug 2014 06:19:57 -0700 (PDT) X-ASG-Debug-ID: 1408713593-04bdf0109737c2a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 5yTNS1MM4ql9BTqx (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 06:19:54 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDJruC016045 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 09:19:53 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDJp1S006145 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 09:19:53 -0400 Date: Fri, 22 Aug 2014 09:19:51 -0400 From: Brian Foster To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary Message-ID: <20140822131950.GC3915@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary References: <53F6942B.80808@redhat.com> <53F6963D.9090500@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F6963D.9090500@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408713594 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 08:00:45PM -0500, Eric Sandeen wrote: > xfs_rtmodify_summary and xfs_rtget_summary are > almost identical; fold them into > xfs_rtmodify_summary_int(), with wrappers for > each of the original calls. > > The _int function modifies if a delta is passed, > and returns a summary pointer if *sum is passed. > > Signed-off-by: Eric Sandeen > --- > > diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c > index f4dd697..50e3b93 100644 > --- a/fs/xfs/libxfs/xfs_rtbitmap.c > +++ b/fs/xfs/libxfs/xfs_rtbitmap.c > @@ -424,20 +424,24 @@ xfs_rtfind_forw( > } > > /* > - * Read and modify the summary information for a given extent size, > + * Read and/or modify the summary information for a given extent size, > * bitmap block combination. > * Keeps track of a current summary block, so we don't keep reading > * it from the buffer cache. > + * > + * Summary information is returned in *sum if specified. > + * If no delta is specified, returns summary only. > */ > int > -xfs_rtmodify_summary( > - xfs_mount_t *mp, /* file system mount point */ > +xfs_rtmodify_summary_int( > + xfs_mount_t *mp, /* file system mount structure */ > xfs_trans_t *tp, /* transaction pointer */ > int log, /* log2 of extent size */ > xfs_rtblock_t bbno, /* bitmap block number */ > int delta, /* change to make to summary info */ > xfs_buf_t **rbpp, /* in/out: summary block buffer */ > - xfs_fsblock_t *rsb) /* in/out: summary block number */ > + xfs_fsblock_t *rsb, /* in/out: summary block number */ > + xfs_suminfo_t *sum) /* out: summary info for this block */ > { > xfs_buf_t *bp; /* buffer for the summary block */ > int error; /* error value */ > @@ -480,15 +484,40 @@ xfs_rtmodify_summary( > } > } > /* > - * Point to the summary information, modify and log it. > + * Point to the summary information, modify/log it, and/or copy it out. > */ > sp = XFS_SUMPTR(mp, bp, so); > - *sp += delta; > - xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr), > - (uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1)); > + if (delta) { > + uint first = (uint)((char *)sp - (char *)bp->b_addr); > + > + *sp += delta; > + xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); > + } > + if (sum) { > + /* > + * Drop the buffer if we're not asked to remember it. > + */ > + if (!rbpp) > + xfs_trans_brelse(tp, bp); This introduces some potentially weird circumstances (e.g., acquire, log, release of a buffer), but I think it's resolved by the next patch. Reviewed-by: Brian Foster > + *sum = *sp; > + } > return 0; > } > > +int > +xfs_rtmodify_summary( > + xfs_mount_t *mp, /* file system mount structure */ > + xfs_trans_t *tp, /* transaction pointer */ > + int log, /* log2 of extent size */ > + xfs_rtblock_t bbno, /* bitmap block number */ > + int delta, /* change to make to summary info */ > + xfs_buf_t **rbpp, /* in/out: summary block buffer */ > + xfs_fsblock_t *rsb) /* in/out: summary block number */ > +{ > + return xfs_rtmodify_summary_int(mp, tp, log, bbno, > + delta, rbpp, rsb, NULL); > +} > + > /* > * Set the given range of bitmap bits to the given value. > * Do whatever I/O and logging is required. > diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c > index 909e143..d1160cc 100644 > --- a/fs/xfs/xfs_rtalloc.c > +++ b/fs/xfs/xfs_rtalloc.c > @@ -46,7 +46,7 @@ > * Keeps track of a current summary block, so we don't keep reading > * it from the buffer cache. > */ > -STATIC int /* error */ > +int > xfs_rtget_summary( > xfs_mount_t *mp, /* file system mount structure */ > xfs_trans_t *tp, /* transaction pointer */ > @@ -56,60 +56,9 @@ xfs_rtget_summary( > xfs_fsblock_t *rsb, /* in/out: summary block number */ > xfs_suminfo_t *sum) /* out: summary info for this block */ > { > - xfs_buf_t *bp; /* buffer for summary block */ > - int error; /* error value */ > - xfs_fsblock_t sb; /* summary fsblock */ > - int so; /* index into the summary file */ > - xfs_suminfo_t *sp; /* pointer to returned data */ > - > - /* > - * Compute entry number in the summary file. > - */ > - so = XFS_SUMOFFS(mp, log, bbno); > - /* > - * Compute the block number in the summary file. > - */ > - sb = XFS_SUMOFFSTOBLOCK(mp, so); > - /* > - * If we have an old buffer, and the block number matches, use that. > - */ > - if (rbpp && *rbpp && *rsb == sb) > - bp = *rbpp; > - /* > - * Otherwise we have to get the buffer. > - */ > - else { > - /* > - * If there was an old one, get rid of it first. > - */ > - if (rbpp && *rbpp) > - xfs_trans_brelse(tp, *rbpp); > - error = xfs_rtbuf_get(mp, tp, sb, 1, &bp); > - if (error) { > - return error; > - } > - /* > - * Remember this buffer and block for the next call. > - */ > - if (rbpp) { > - *rbpp = bp; > - *rsb = sb; > - } > - } > - /* > - * Point to the summary information & copy it out. > - */ > - sp = XFS_SUMPTR(mp, bp, so); > - *sum = *sp; > - /* > - * Drop the buffer if we're not asked to remember it. > - */ > - if (!rbpp) > - xfs_trans_brelse(tp, bp); > - return 0; > + return xfs_rtmodify_summary_int(mp, tp, log, bbno, 0, rbpp, rsb, sum); > } > > - > /* > * Return whether there are any free extents in the size range given > * by low and high, for the bitmap block bbno. > diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h > index c642795..76c0a4a 100644 > --- a/fs/xfs/xfs_rtalloc.h > +++ b/fs/xfs/xfs_rtalloc.h > @@ -111,6 +111,10 @@ int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp, > xfs_rtblock_t *rtblock); > int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp, > xfs_rtblock_t start, xfs_extlen_t len, int val); > +int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp, > + int log, xfs_rtblock_t bbno, int delta, > + xfs_buf_t **rbpp, xfs_fsblock_t *rsb, > + xfs_suminfo_t *sum); > int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log, > xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp, > xfs_fsblock_t *rsb); > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 22 08:20:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 66BE57F53 for ; Fri, 22 Aug 2014 08:20:14 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id E8ABDAC004 for ; Fri, 22 Aug 2014 06:20:10 -0700 (PDT) X-ASG-Debug-ID: 1408713609-04cbb05487608c30001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id C7RDfEQsIEVhJDs8 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 22 Aug 2014 06:20:09 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDK7KP028704 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 22 Aug 2014 09:20:08 -0400 Received: from laptop.bfoster (vpn-61-227.rdu2.redhat.com [10.10.61.227]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7MDK5H0025900 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 22 Aug 2014 09:20:07 -0400 Date: Fri, 22 Aug 2014 09:20:05 -0400 From: Brian Foster To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH 4/4] xfs: remove rbpp check from xfs_rtmodify_summary_int Message-ID: <20140822132004.GD3915@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: remove rbpp check from xfs_rtmodify_summary_int References: <53F6942B.80808@redhat.com> <53F696D7.2030906@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F696D7.2030906@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408713609 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 21, 2014 at 08:03:19PM -0500, Eric Sandeen wrote: > rbpp is always passed into xfs_rtmodify_summary > and xfs_rtget_summary, so there is no need to > test for it in xfs_rtmodify_summary_int. > Looks fine, but this is also called through a variety of twisty paths. Could we add a top-level error check or assert? Brian > Signed-off-by: Eric Sandeen > --- > > diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c > index 50e3b93..7c818f1 100644 > --- a/fs/xfs/libxfs/xfs_rtbitmap.c > +++ b/fs/xfs/libxfs/xfs_rtbitmap.c > @@ -460,7 +460,7 @@ xfs_rtmodify_summary_int( > /* > * If we have an old buffer, and the block number matches, use that. > */ > - if (rbpp && *rbpp && *rsb == sb) > + if (*rbpp && *rsb == sb) > bp = *rbpp; > /* > * Otherwise we have to get the buffer. > @@ -469,7 +469,7 @@ xfs_rtmodify_summary_int( > /* > * If there was an old one, get rid of it first. > */ > - if (rbpp && *rbpp) > + if (*rbpp) > xfs_trans_brelse(tp, *rbpp); > error = xfs_rtbuf_get(mp, tp, sb, 1, &bp); > if (error) { > @@ -478,10 +478,8 @@ xfs_rtmodify_summary_int( > /* > * Remember this buffer and block for the next call. > */ > - if (rbpp) { > - *rbpp = bp; > - *rsb = sb; > - } > + *rbpp = bp; > + *rsb = sb; > } > /* > * Point to the summary information, modify/log it, and/or copy it out. > @@ -493,14 +491,8 @@ xfs_rtmodify_summary_int( > *sp += delta; > xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); > } > - if (sum) { > - /* > - * Drop the buffer if we're not asked to remember it. > - */ > - if (!rbpp) > - xfs_trans_brelse(tp, bp); > + if (sum) > *sum = *sp; > - } > return 0; > } > > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sandeen@sandeen.net Fri Aug 22 10:01:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D75997F53 for ; Fri, 22 Aug 2014 10:01:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 75CB6AC003 for ; Fri, 22 Aug 2014 08:01:35 -0700 (PDT) X-ASG-Debug-ID: 1408719693-04cb6c54ff441a60001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id qWL7Cn5esSpvzhhB for ; Fri, 22 Aug 2014 08:01:33 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 104376574438; Fri, 22 Aug 2014 10:01:33 -0500 (CDT) Message-ID: <53F75B54.8050802@sandeen.net> Date: Fri, 22 Aug 2014 10:01:40 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster CC: Eric Sandeen , xfs-oss Subject: Re: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary References: <53F6942B.80808@redhat.com> <53F6963D.9090500@sandeen.net> <20140822131950.GC3915@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary In-Reply-To: <20140822131950.GC3915@laptop.bfoster> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408719693 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8723 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/22/14, 8:19 AM, Brian Foster wrote: > On Thu, Aug 21, 2014 at 08:00:45PM -0500, Eric Sandeen wrote: ... >> @@ -480,15 +484,40 @@ xfs_rtmodify_summary( >> } >> } >> /* >> - * Point to the summary information, modify and log it. >> + * Point to the summary information, modify/log it, and/or copy it out. >> */ >> sp = XFS_SUMPTR(mp, bp, so); >> - *sp += delta; >> - xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr), >> - (uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1)); >> + if (delta) { >> + uint first = (uint)((char *)sp - (char *)bp->b_addr); >> + >> + *sp += delta; >> + xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); >> + } >> + if (sum) { >> + /* >> + * Drop the buffer if we're not asked to remember it. >> + */ >> + if (!rbpp) >> + xfs_trans_brelse(tp, bp); > > This introduces some potentially weird circumstances (e.g., acquire, > log, release of a buffer), but I think it's resolved by the next patch. > > Reviewed-by: Brian Foster does it introduce it, or just highlight it? I thought it was weird too, but I think it existed before; that's what prompted me to go looking at callers and drop the rbpp checks, FWIW. -Eric From sandeen@sandeen.net Fri Aug 22 10:23:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 987BD7F53 for ; Fri, 22 Aug 2014 10:23:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 87BD1304077 for ; Fri, 22 Aug 2014 08:23:37 -0700 (PDT) X-ASG-Debug-ID: 1408721016-04cb6c54fd44a9a0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id vzV7GGczFnHsGYhT for ; Fri, 22 Aug 2014 08:23:36 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 174E56096EF0; Fri, 22 Aug 2014 10:23:36 -0500 (CDT) Message-ID: <53F7607F.2020604@sandeen.net> Date: Fri, 22 Aug 2014 10:23:43 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster CC: Eric Sandeen , xfs-oss Subject: Re: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary References: <53F6942B.80808@redhat.com> <53F6963D.9090500@sandeen.net> <20140822131950.GC3915@laptop.bfoster> <53F75B54.8050802@sandeen.net> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: combine xfs_rtmodify_summary and xfs_rtget_summary In-Reply-To: <53F75B54.8050802@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408721016 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8723 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/22/14, 10:01 AM, Eric Sandeen wrote: > On 8/22/14, 8:19 AM, Brian Foster wrote: >> On Thu, Aug 21, 2014 at 08:00:45PM -0500, Eric Sandeen wrote: > > ... > >>> @@ -480,15 +484,40 @@ xfs_rtmodify_summary( >>> } >>> } >>> /* >>> - * Point to the summary information, modify and log it. >>> + * Point to the summary information, modify/log it, and/or copy it out. >>> */ >>> sp = XFS_SUMPTR(mp, bp, so); >>> - *sp += delta; >>> - xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr), >>> - (uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1)); >>> + if (delta) { >>> + uint first = (uint)((char *)sp - (char *)bp->b_addr); >>> + >>> + *sp += delta; >>> + xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); >>> + } >>> + if (sum) { >>> + /* >>> + * Drop the buffer if we're not asked to remember it. >>> + */ >>> + if (!rbpp) >>> + xfs_trans_brelse(tp, bp); >> >> This introduces some potentially weird circumstances (e.g., acquire, >> log, release of a buffer), but I think it's resolved by the next patch. >> >> Reviewed-by: Brian Foster > > does it introduce it, or just highlight it? I thought it was weird too, > but I think it existed before; that's what prompted me to go looking at > callers and drop the rbpp checks, FWIW. Oh, right, if delta & sum,there's a problem if (!rpbb). And I did introduce that as a new issue. But the code at that point never sees (!rbpp) so I think it's safe. I could respin patches 3 & 4, to do them in the opposite order, if desired. -Eric From service1@sb2.waiyoufa.net Fri Aug 22 14:31:52 2014 Return-Path: X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 76BC37F4E for ; Fri, 22 Aug 2014 14:31:51 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1A9DBAC005 for ; Fri, 22 Aug 2014 12:31:47 -0700 (PDT) X-ASG-Debug-ID: 1408735799-04bdf0109a420120001-NocioJ Received: from sb2.waiyoufa.net (25.10-88-23.rdns.scalabledns.com [23.88.10.25]) by cuda.sgi.com with ESMTP id bPILIwFh6TTDLgEu for ; Fri, 22 Aug 2014 12:30:01 -0700 (PDT) X-Barracuda-Envelope-From: service1@sb2.waiyoufa.net X-Barracuda-Apparent-Source-IP: 23.88.10.25 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sb2.waiyoufa.net; s=dkimss; t=1408735783; x=1409340583; q=dns/txt; h=DomainKey-Signature: 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t7917qQn/HpS/wDH0f8AF+ov0f8AHvf8A6n/AIHf9nD/AMc/+mTye/de6eq//j09u/8AH0f57K/8 C/8Aj2/+BEn/ABZP9p/5Wf8Am97917rhuf8AVtn/AIv3/Htbe/4uP/Af/OVH/Fl/6tv/ABy/6aNf v3XusK/8zIwv/Hz/APF2oP8AgL/x8H+eh/4tf/TZ/wAc/wDare/de6//2Q== ------=_NextPart_000_0DE5_019902BD.1B87C660-- From sandeen@sandeen.net Sat Aug 23 18:50:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7E04B7F3F for ; Sat, 23 Aug 2014 18:50:17 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id F2187AC003 for ; Sat, 23 Aug 2014 16:50:16 -0700 (PDT) X-ASG-Debug-ID: 1408837813-04cbb05488764570001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id wEerhXFOEDtXhIOu for ; Sat, 23 Aug 2014 16:50:14 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 57B9D63C3BD2; Sat, 23 Aug 2014 18:50:13 -0500 (CDT) Message-ID: <53F928B6.7080308@sandeen.net> Date: Sat, 23 Aug 2014 18:50:14 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Brian Foster CC: Eric Sandeen , xfs-oss Subject: Re: [PATCH 4/4] xfs: remove rbpp check from xfs_rtmodify_summary_int References: <53F6942B.80808@redhat.com> <53F696D7.2030906@sandeen.net> <20140822132004.GD3915@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 4/4] xfs: remove rbpp check from xfs_rtmodify_summary_int In-Reply-To: <20140822132004.GD3915@laptop.bfoster> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1408837813 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8766 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/22/14, 8:20 AM, Brian Foster wrote: > On Thu, Aug 21, 2014 at 08:03:19PM -0500, Eric Sandeen wrote: >> rbpp is always passed into xfs_rtmodify_summary >> and xfs_rtget_summary, so there is no need to >> test for it in xfs_rtmodify_summary_int. >> > > Looks fine, but this is also called through a variety of twisty paths. > Could we add a top-level error check or assert? We could, though it'll oops pretty fast if we don't send rbpp anyway. An ASSERT might be decent for documentation, though... -Eric > Brian > >> Signed-off-by: Eric Sandeen >> --- >> >> diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c >> index 50e3b93..7c818f1 100644 >> --- a/fs/xfs/libxfs/xfs_rtbitmap.c >> +++ b/fs/xfs/libxfs/xfs_rtbitmap.c >> @@ -460,7 +460,7 @@ xfs_rtmodify_summary_int( >> /* >> * If we have an old buffer, and the block number matches, use that. >> */ >> - if (rbpp && *rbpp && *rsb == sb) >> + if (*rbpp && *rsb == sb) >> bp = *rbpp; >> /* >> * Otherwise we have to get the buffer. >> @@ -469,7 +469,7 @@ xfs_rtmodify_summary_int( >> /* >> * If there was an old one, get rid of it first. >> */ >> - if (rbpp && *rbpp) >> + if (*rbpp) >> xfs_trans_brelse(tp, *rbpp); >> error = xfs_rtbuf_get(mp, tp, sb, 1, &bp); >> if (error) { >> @@ -478,10 +478,8 @@ xfs_rtmodify_summary_int( >> /* >> * Remember this buffer and block for the next call. >> */ >> - if (rbpp) { >> - *rbpp = bp; >> - *rsb = sb; >> - } >> + *rbpp = bp; >> + *rsb = sb; >> } >> /* >> * Point to the summary information, modify/log it, and/or copy it out. >> @@ -493,14 +491,8 @@ xfs_rtmodify_summary_int( >> *sp += delta; >> xfs_trans_log_buf(tp, bp, first, first + sizeof(*sp) - 1); >> } >> - if (sum) { >> - /* >> - * Drop the buffer if we're not asked to remember it. >> - */ >> - if (!rbpp) >> - xfs_trans_brelse(tp, bp); >> + if (sum) >> *sum = *sp; >> - } >> return 0; >> } >> >> >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > From root@krios.tbi.univie.ac.at Sat Aug 23 23:25:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8EA597F3F for ; Sat, 23 Aug 2014 23:25:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6F0378F8039 for ; Sat, 23 Aug 2014 21:25:08 -0700 (PDT) X-ASG-Debug-ID: 1408854305-04bdf0109a4727d0001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id CW01WpKBtlG4LRYp for ; Sat, 23 Aug 2014 21:25:06 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id 5916F5EECF; Sun, 24 Aug 2014 06:25:03 +0200 (CEST) Delivered-To: root@krios.tbi.univie.ac.at Received: by krios.tbi.univie.ac.at (Postfix, from userid 0) id 403B45F2E1; Sun, 24 Aug 2014 06:25:03 +0200 (CEST) From: root@krios.tbi.univie.ac.at (Cron Daemon) To: root@krios.tbi.univie.ac.at Subject: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Content-Type: text/plain; charset=UTF-8 X-ASG-Orig-Subj: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: Message-Id: <20140824042503.403B45F2E1@krios.tbi.univie.ac.at> Date: Sun, 24 Aug 2014 06:25:03 +0200 (CEST) X-Barracuda-Connect: krios.tbi.univie.ac.at[131.130.44.60] X-Barracuda-Start-Time: 1408854305 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA_TO_FROM_ADDR_MATCH, PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8771 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address /etc/cron.daily/logrotate: error: error opening /home/git/gitlab/log/application.log: Permission denied error: error opening /home/git/gitlab/log/githost.log: Permission denied error: error opening /home/git/gitlab/log/production.log: Permission denied error: error opening /home/git/gitlab/log/satellites.log: Permission denied error: error opening /home/git/gitlab/log/sidekiq.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stderr.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stdout.log: Permission denied error: error opening /home/git/gitlab-shell/gitlab-shell.log: Permission denied run-parts: /etc/cron.daily/logrotate exited with return code 1 From alex@zadarastorage.com Sun Aug 24 04:20:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 266587F4E for ; Sun, 24 Aug 2014 04:20:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 155F9304032 for ; Sun, 24 Aug 2014 02:20:23 -0700 (PDT) X-ASG-Debug-ID: 1408872020-04cbb0548677efc0001-NocioJ Received: from mail-wg0-f52.google.com (mail-wg0-f52.google.com [74.125.82.52]) by cuda.sgi.com with ESMTP id kO5eXn94m90Yxqjm (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sun, 24 Aug 2014 02:20:21 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 74.125.82.52 Received: by mail-wg0-f52.google.com with SMTP id a1so11921559wgh.35 for ; Sun, 24 Aug 2014 02:20:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=/CUTE6dGfa5uOvCjJaPW7mUaI2pzUnv3VNdt5cxebu8=; b=SYgXO2Ucj4xVog03TzilyecGCWDe/7npKmzKIJESnJ4XxWi6jAv00d8o5kL9KIPstD Rqnwu/RuGzoj2iuAg7aMpv8UViDYKyHMG+AEfqb0zIvYGLSj0bajSvx6I0f5c15nPLtr puZynd/3jSzFdJHVaddCmoiOCSMgIjCpXavT5b7VmltebdNCwWwtPBJufNFXRmoHHad2 QbAaf73vNM2SoMxAMkvG7qA4MFr2pKrn+SjVsY4QxwOnzT5nM0z+2iNKhEKaJVdXFZcA lnrdFKLsErKb+I8qsjrz6ouwFIyOnMCp491oytfm4s86VFHto1MhXRZYXXO+sMGRGpSi Jv0g== X-Gm-Message-State: ALoCoQmdfVJgnWcqQwM4X9lxaO17GCCGwMzAdSXUPhZInq4YMgG+RdMGRqawhH8dnhFGFbWxHf6Z MIME-Version: 1.0 X-Received: by 10.194.161.231 with SMTP id xv7mr1812665wjb.78.1408872020190; Sun, 24 Aug 2014 02:20:20 -0700 (PDT) Received: by 10.194.15.232 with HTTP; Sun, 24 Aug 2014 02:20:20 -0700 (PDT) In-Reply-To: <1408648692-15957-1-git-send-email-bfoster@redhat.com> References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> Date: Sun, 24 Aug 2014 12:20:20 +0300 Message-ID: Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error From: Alex Lyakas X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error To: Brian Foster Cc: xfs@oss.sgi.com, Dave Chinner Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wg0-f52.google.com[74.125.82.52] X-Barracuda-Start-Time: 1408872021 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8776 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words Hi Brian, On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster wrote: > XFS log recovery builds up an xlog_recover object as it passes through > the log operations on the physical log. These structures are managed via > a hash table and are allocated when a new transaction is encountered and > freed once a commit operation for the transaction is encountered. > > This state machine for active transactions is implemented by a > combination of xlog_do_recovery_pass(), which walks through the log > buffers and xlog_recover_process_data() which processes log operations > within each buffer. The latter function decides whether to allocate a > new xlog_recover, add to it or commit and ultimately free it. If an > error occurs at any point during the lifecycle of a particular > xlog_recover, xlog_recover_process_data() frees the object and returns > an error. > > xlog_recover_commit_trans() handles the final processing of the > transaction. It submits whatever I/O is required for the transaction and > frees xlog_recover object along with the transaction items it tracks. If > an error occurs at the final stages of the commit operation, such as I/O > failure, both xlog_recover_commit_trans() and > xlog_recover_process_data() attempt to free the trans object. > > Modify xlog_recover_commit_trans() to only free the trans object on > successful completion of the trans, including any I/O errors that might > occur when recovering the log. > > Signed-off-by: Brian Foster > --- > > Hi all, > > I found that the recent buffer I/O rework fixes didn't address the crash > reproduced by the dm-flakey/log recovery test case I posted recently. I > tracked the crash down to this, which allows the test to pass. This > addresses the crash I saw when running the reproducer manually with the > metadump that Alex posted as well. > > FWIW, I also went back and tested the xfs_buf_iowait() experiment in > both scenarios (Alex's metadump and xfstests test) and they all > reproduce the same crash for me. I think that either I'm still not > reproducing the original problem, something else might have contaminated > the original xfs_buf_iowait() test to give a false positive, or > something else entirely is going on. > > Alex, > > If you have a chance, I think it might be interesting to see whether you > reproduce any problems with this patch. It looks like this is a > regression introduced by: > > 2a84108f xfs: free the list of recovery items on error > > ... but I have no idea if that's in whatever kernel you're running. I am running kernel 3.8.13 with some changes (published at https://github.com/zadarastorage/zadara-xfs-pushback), but this problem also happens on pristine 3.8.13 from git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, branch linux-stable-3.8.y. I do not have commit 2a84108f in this kernel. It was introduced in 3.14. I applied your patch to 3.8.13, but it doesn't fix the issue. Same problem happens when testing scenario that I described in http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. Thanks, Alex. > > Brian > > fs/xfs/xfs_log_recover.c | 11 ++++++++--- > 1 file changed, 8 insertions(+), 3 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 176c4b3..daca9a6 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -3528,10 +3528,15 @@ out: > if (!list_empty(&done_list)) > list_splice_init(&done_list, &trans->r_itemq); > > - xlog_recover_free_trans(trans); > - > error2 = xfs_buf_delwri_submit(&buffer_list); > - return error ? error : error2; > + > + if (!error) > + error = error2; > + /* caller frees trans on error */ > + if (!error) > + xlog_recover_free_trans(trans); > + > + return error; > } > > STATIC int > -- > 1.8.3.1 > From alex@zadarastorage.com Sun Aug 24 04:22:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 941C37F4E for ; Sun, 24 Aug 2014 04:22:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7416B8F804B for ; Sun, 24 Aug 2014 02:22:04 -0700 (PDT) X-ASG-Debug-ID: 1408872118-04cb6c55004f4c80001-NocioJ Received: from mail-wi0-f179.google.com (mail-wi0-f179.google.com [209.85.212.179]) by cuda.sgi.com with ESMTP id 7wiO5coBrLYQrfJK (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sun, 24 Aug 2014 02:21:59 -0700 (PDT) X-Barracuda-Envelope-From: alex@zadarastorage.com X-Barracuda-Apparent-Source-IP: 209.85.212.179 Received: by mail-wi0-f179.google.com with SMTP id f8so1302326wiw.12 for ; Sun, 24 Aug 2014 02:21:58 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=J15mR9blNxjHPJqY0pGwIbCCeoz4wUq69kwT9xXlRR8=; b=lD1IzXNdygBXdwE5Wi2VtBkyRjSPZLzpLnqm0wN8GXSXtoO+I/Fl8ToDkotp97oQCy AatyilvmDLOKDZzy0dg75aqPXiBxXRFG9q2Cegefzfmq+KtD2Zkn7+soRmPZ0Aqmx+xf Z7Ia+5D0GQ+668aUfHD/lSAmfFhWqA3OTQTPP28sZ7jH3CHFLh/uJuycSj79tNKNhuFZ IdW5cVaq4UazRpMD2SkfOP03is47+5/lqqH/R7By9nAJnnWEQqtUfyBeSM6YSbX6Ukns +pTGSNiba80rjT/q3QQ8CiNwwuGpCIWRdZMWdQTqFXh0LpVdN53laOFhVlYEB3ebKpyJ zYsQ== X-Gm-Message-State: ALoCoQnfnKRljWVTYBNYJ7Lv7gea5iHNNmJ5hxdVqopO7OU1+QYCru4tjsBDsvzs2Wyln1yeqxvP MIME-Version: 1.0 X-Received: by 10.180.92.73 with SMTP id ck9mr8344251wib.54.1408872118191; Sun, 24 Aug 2014 02:21:58 -0700 (PDT) Received: by 10.194.15.232 with HTTP; Sun, 24 Aug 2014 02:21:58 -0700 (PDT) In-Reply-To: References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> Date: Sun, 24 Aug 2014 12:21:58 +0300 Message-ID: Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error From: Alex Lyakas X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error To: Brian Foster Cc: xfs@oss.sgi.com, Dave Chinner Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wi0-f179.google.com[209.85.212.179] X-Barracuda-Start-Time: 1408872119 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8776 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words Forgot to mention that the metadump from this repro is here: https://drive.google.com/file/d/0ByBy89zr3kJNeWdBQ1RFbmJESTg/edit?usp=sharing On Sun, Aug 24, 2014 at 12:20 PM, Alex Lyakas wrote: > Hi Brian, > > On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster wrote: >> XFS log recovery builds up an xlog_recover object as it passes through >> the log operations on the physical log. These structures are managed via >> a hash table and are allocated when a new transaction is encountered and >> freed once a commit operation for the transaction is encountered. >> >> This state machine for active transactions is implemented by a >> combination of xlog_do_recovery_pass(), which walks through the log >> buffers and xlog_recover_process_data() which processes log operations >> within each buffer. The latter function decides whether to allocate a >> new xlog_recover, add to it or commit and ultimately free it. If an >> error occurs at any point during the lifecycle of a particular >> xlog_recover, xlog_recover_process_data() frees the object and returns >> an error. >> >> xlog_recover_commit_trans() handles the final processing of the >> transaction. It submits whatever I/O is required for the transaction and >> frees xlog_recover object along with the transaction items it tracks. If >> an error occurs at the final stages of the commit operation, such as I/O >> failure, both xlog_recover_commit_trans() and >> xlog_recover_process_data() attempt to free the trans object. >> >> Modify xlog_recover_commit_trans() to only free the trans object on >> successful completion of the trans, including any I/O errors that might >> occur when recovering the log. >> >> Signed-off-by: Brian Foster >> --- >> >> Hi all, >> >> I found that the recent buffer I/O rework fixes didn't address the crash >> reproduced by the dm-flakey/log recovery test case I posted recently. I >> tracked the crash down to this, which allows the test to pass. This >> addresses the crash I saw when running the reproducer manually with the >> metadump that Alex posted as well. >> >> FWIW, I also went back and tested the xfs_buf_iowait() experiment in >> both scenarios (Alex's metadump and xfstests test) and they all >> reproduce the same crash for me. I think that either I'm still not >> reproducing the original problem, something else might have contaminated >> the original xfs_buf_iowait() test to give a false positive, or >> something else entirely is going on. >> >> Alex, >> >> If you have a chance, I think it might be interesting to see whether you >> reproduce any problems with this patch. It looks like this is a >> regression introduced by: >> >> 2a84108f xfs: free the list of recovery items on error >> >> ... but I have no idea if that's in whatever kernel you're running. > I am running kernel 3.8.13 with some changes (published at > https://github.com/zadarastorage/zadara-xfs-pushback), but this > problem also happens on pristine 3.8.13 from > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, > branch linux-stable-3.8.y. > > I do not have commit 2a84108f in this kernel. It was introduced in 3.14. > I applied your patch to 3.8.13, but it doesn't fix the issue. Same > problem happens when testing scenario that I described in > http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. > > Thanks, > Alex. > >> >> Brian >> >> fs/xfs/xfs_log_recover.c | 11 ++++++++--- >> 1 file changed, 8 insertions(+), 3 deletions(-) >> >> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c >> index 176c4b3..daca9a6 100644 >> --- a/fs/xfs/xfs_log_recover.c >> +++ b/fs/xfs/xfs_log_recover.c >> @@ -3528,10 +3528,15 @@ out: >> if (!list_empty(&done_list)) >> list_splice_init(&done_list, &trans->r_itemq); >> >> - xlog_recover_free_trans(trans); >> - >> error2 = xfs_buf_delwri_submit(&buffer_list); >> - return error ? error : error2; >> + >> + if (!error) >> + error = error2; >> + /* caller frees trans on error */ >> + if (!error) >> + xlog_recover_free_trans(trans); >> + >> + return error; >> } >> >> STATIC int >> -- >> 1.8.3.1 >> From stan@hardwarefreak.com Sun Aug 24 15:14:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 698C57F4E for ; Sun, 24 Aug 2014 15:14:47 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id EDC1DAC001 for ; Sun, 24 Aug 2014 13:14:43 -0700 (PDT) X-ASG-Debug-ID: 1408911282-04cbb054867a3860001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id cKECPEteVhkJ9os4 for ; Sun, 24 Aug 2014 13:14:42 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id B092A6C097; Sun, 24 Aug 2014 15:14:41 -0500 (CDT) Message-ID: <53FA47B4.6020103@hardwarefreak.com> Date: Sun, 24 Aug 2014 15:14:44 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: inode64 directory placement determinism References: <20140818070153.GL20518@dastard> <20140818224853.GD26465@dastard> X-ASG-Orig-Subj: Re: inode64 directory placement determinism In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1408911282 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/18/2014 07:02 PM, Stan Hoeppner wrote: > On Tue, 19 Aug 2014 08:48:53 +1000, Dave Chinner > wrote: >> On Mon, Aug 18, 2014 at 11:16:12AM -0500, Stan Hoeppner wrote: >>> On Mon, 18 Aug 2014 17:01:53 +1000, Dave Chinner >>> wrote: >>>> On Sun, Aug 17, 2014 at 10:29:21PM -0500, Stan Hoeppner wrote: >>>>> Say I have a single 4TB disk in an md linear device. The md device >>>>> has >>> a >>>>> filesystem on it formatted with defaults. It has 4 AGs, 0-3. I > have >>>>> created 4 directories. Each should reside in a different AG, the >>>>> first >>>>> in >>>>> AG0. Now I expand the linear device with an identical 4TB disk and >>>>> execute >>>>> xfs_growfs. I now have 4 more AGs, 4-7. I create 4 more > directories. >>>>> >>>>> Will these 4 new dirs be created sequentially in AGs 4-7, or in the >>> first >>>>> 4 AGs? Is this deterministic, or is there any chance involved? On >>>>> the >>>> >>>> Deterministic, assuming single threaded *file-system-wide* directory >>>> creation. Completely unpredictable under concurrent directory >>>> creations. See xfs_ialloc_ag_select/xfs_ialloc_next_ag. >>>> >>>> Note that the rotor used to select the next AG is set to >>>> zero at mount. >>>> >>>> i.e. single threaded behaviour at agcount = 4: >>>> >>>> dir number rotor value destination AG >>>> 1 0 0 >>>> 2 1 1 >>>> 3 2 2 >>>> 4 3 3 >>>> 5 0 0 >>>> 6 1 1 >>>> .... >>>> >>>> So, if you do what you suggest, and grow *after* the first 4 dirs >>>> are created, the above is what you'll get because the rotor goes >>>> back to zero on the fourth directory create. Now, with changing from >>>> 4 to 8 AGs after the first 4: >>>> >>>> dir number rotor value new inode location (AG) >>>> 1 0 0 >>>> 2 1 1 >>>> 3 2 2 >>>> 4 3 3 >>>> >>>> 5 0 0 >>>> 6 1 1 >>>> 7 2 2 >>>> 8 3 3 >>>> 9 4 4 >>>> 10 5 5 >>>> 11 6 6 >>>> 13 7 7 >>>> 14 0 0 >>>> >>>>> real system these 4TB drives are actually 48TB LUNs. I'm after >>>>> deterministic parallel bandwidth to subsequently added RAIDs after >>>>> each >>>>> grow operation by simply writing to the proper directory. >>>> >>>> Just create new directories and use the inode number to >>>> determine their location. If the directory is not in the correct AG, >>>> remove it and create a new one, until you have directories located >>>> in the AGs you want. >>>> >>>> Cheers, >>>> >>>> Dave. >>> >>> >>> Thanks for the info Dave. Was hoping it would be more straightforward. > >>> Modifying the app for this is out of the question. They've spent 3+ >>> years >>> developing with EXT4 and decided to try XFS at the last minute. > Product >>> is >>> to ship in October, so optimizations I can suggest are limited. >> >> Perhaps you could actually tell us what the requirement for >> layout/separation is, and how they are acheiving it with ext4. We >> really need a more "directed" allocation ability, but it's not clear >> exactly what requirements need to drive that. >> >> Cheers, >> >> Dave. > > The test harness app writes to thousands of preallocated files in hundreds > of directories. The target is ~250MB/s at the application per array, more > if achievable, writing a combination of fast and slow streams from up to > ~1000 threads, to different files, circularly. The mix of stream rates and > the files they write will depend on the end customers' needs. Currently > they have 1 FS per array with 3 top level dirs each w/3 subdirs, 2 of these > with ~100 subdirs each, and hundreds files in each of those. Simply doing > a concat, growing and just running with it might work fine. The concern is > ending up with too many fast stream writers hitting AGs on a single array > which won't be able to keep up. Currently they simply duplicate the layout > on each new filesystem they mount. The application duplicates the same > layout on each filesystem and does its own load balancing among the group > of them. > > Ideally they'd obviously like to simply add files to existing directories > after growing, but that won't achieve scalable bandwidth. My apologies Dave. The above isn't really a description of a requirement, but simply how they do things currently. So let me take another stab at this. I think the generic requirement is best described as: Create a directory in the first AG in a range of specified AGs. Create all child directories and files in AGs within the range of AGs, starting with the first AG. In other words, we take the default behavior of the inode64 allocator and we apply it to a subset of AGs within the filesystem. Something like... agr = allocation group range 1. mkdir $directory agr=0,47 2. create $directory in AG0 and set flag in metadata to have inode64 allocator rotor new child directories of this parent across only the AGs in the range specified 3. file allocation policy need not be altered, files go in parent directory, parent AG. If we spill due to AG free space do what we already do and allow writing outside of the AGs in agr So when we expand the concat and grow XFS we simply do ~$ mkdir $directory agr=48,95 All child directories and files created in $directory will be allocated in AGs 48-95, only on the new LUN. Rinse and repeat. Such a feature would provide everything needed I think for this particular workload. I can imagine there are similar workloads out there that would benefit from something like this given the prevalence of large concatenated RAID6s today. Another scenario that might benefit from something like this is short stroking of mechanical storage, but controlling it at the filesystem level instead of the block or controller layer. Setting AGR with an mkdir switch might not fly due to it being a generic command for all filesystems. But it would sure be the most straightforward approach and easiest to use. Due to the timetable and other restrictions I wouldn't be able to use patches that might come from fleshing out our ideas here, but I think it would be very useful functionality for others. Cheers, Stan From stan@hardwarefreak.com Sun Aug 24 21:15:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 2F5967F4E for ; Sun, 24 Aug 2014 21:15:45 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 1E4748F8033 for ; Sun, 24 Aug 2014 19:15:42 -0700 (PDT) X-ASG-Debug-ID: 1408932939-04cbb054877b0870001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id mIAelCCT0vWDotqf for ; Sun, 24 Aug 2014 19:15:39 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 2A3D16C00D; Sun, 24 Aug 2014 21:15:39 -0500 (CDT) Message-ID: <53FA9C4B.20805@hardwarefreak.com> Date: Sun, 24 Aug 2014 21:15:39 -0500 From: Stan Hoeppner User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: inode64 directory placement determinism References: <20140818070153.GL20518@dastard> <20140818224853.GD26465@dastard> <53FA47B4.6020103@hardwarefreak.com> X-ASG-Orig-Subj: Re: inode64 directory placement determinism In-Reply-To: <53FA47B4.6020103@hardwarefreak.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1408932939 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 8/24/2014 3:14 PM, stan hoeppner wrote: > Due to the timetable and other restrictions I wouldn't be able to use > patches that might come from fleshing out our ideas here, but I think it > would be very useful functionality for others. Let me restate the above as I don't "think" we'd be able to use patches in the short term for version 1 of the product. That may change if said hypothetical patches might become available within the next 3 weeks, which is probably highly unlikely. They brought me in very late in the game, unfortunately, so I'm racing against the clock. And of course I wasn't able to assist in architectural planning, and make such a feature request here long ago, allowing for sufficient lead time. Stan From david@fromorbit.com Sun Aug 24 21:19:47 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1CD947F51 for ; Sun, 24 Aug 2014 21:19:47 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F0A9F8F8033 for ; Sun, 24 Aug 2014 19:19:46 -0700 (PDT) X-ASG-Debug-ID: 1408933181-04cb6c5500523fa0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id fYBMG1oRmWikjpEy for ; Sun, 24 Aug 2014 19:19:41 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlkeAMKb+lN5LDJ8PGdsb2JhbABZgw1TV4IsiyqhOwwBAQEBAQEGnSGBXYVrAwIBgQ0XBQEBAQE4NoQDAQEEATocIwULCAMYCSUPBSUDBxoTiDoHDsBrGIVkh0CCEAeETAWVT4Z5mH0rLwGCTgEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Aug 2014 11:49:13 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XLjsF-0005g5-FA; Mon, 25 Aug 2014 12:19:11 +1000 Date: Mon, 25 Aug 2014 12:19:11 +1000 From: Dave Chinner To: stan hoeppner Cc: xfs@oss.sgi.com Subject: Re: inode64 directory placement determinism Message-ID: <20140825021911.GX26465@dastard> X-ASG-Orig-Subj: Re: inode64 directory placement determinism References: <20140818070153.GL20518@dastard> <20140818224853.GD26465@dastard> <53FA47B4.6020103@hardwarefreak.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53FA47B4.6020103@hardwarefreak.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1408933181 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8801 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sun, Aug 24, 2014 at 03:14:44PM -0500, stan hoeppner wrote: > >The test harness app writes to thousands of preallocated files in hundreds > >of directories. The target is ~250MB/s at the application per array, more > >if achievable, writing a combination of fast and slow streams from up to > >~1000 threads, to different files, circularly. The mix of stream rates and > >the files they write will depend on the end customers' needs. Currently > >they have 1 FS per array with 3 top level dirs each w/3 subdirs, 2 of these > >with ~100 subdirs each, and hundreds files in each of those. Simply doing > >a concat, growing and just running with it might work fine. The concern is > >ending up with too many fast stream writers hitting AGs on a single array > >which won't be able to keep up. Currently they simply duplicate the layout > >on each new filesystem they mount. The application duplicates the same > >layout on each filesystem and does its own load balancing among the group > >of them. > > > >Ideally they'd obviously like to simply add files to existing directories > >after growing, but that won't achieve scalable bandwidth. > > > My apologies Dave. The above isn't really a description of a > requirement, but simply how they do things currently. So let me > take another stab at this. I think the generic requirement is best > described as: > > Create a directory in the first AG in a range of specified > AGs. Create all child directories and files in AGs within the > range of AGs, starting with the first AG. In other words, we > take the default behavior of the inode64 allocator and we apply > it to a subset of AGs within the filesystem. Something like... > > agr = allocation group range > > 1. mkdir $directory agr=0,47 > > 2. create $directory in AG0 and set flag in metadata to have inode64 > allocator rotor new child directories of this parent across only > the AGs in the range specified > > 3. file allocation policy need not be altered, files go in parent > directory, parent AG. If we spill due to AG free space do what > we already do and allow writing outside of the AGs in agr > > > So when we expand the concat and grow XFS we simply do > > ~$ mkdir $directory agr=48,95 > > All child directories and files created in $directory will be > allocated in AGs 48-95, only on the new LUN. Rinse and repeat. So you want a persistent, configurable AG rotor for a specific directory and all it's children? That's not all that simple to do, because there's no direct connection between the top level directory and indirect children. What you are really asking for is a specific instance of the more generic concept of specifying per-file allocation policy. That's been on the radar for a long time, but it's not as simple as it first sounds. This is something i started prototyping years ago when I was back at SGI: http://oss.sgi.com/archives/xfs/2009-02/msg00250.html but that patch series is *extremely* experimental. There are parts we should pull from it to start putting generic allocation policy frameworks in place, but the really difficult part of per-file allocation policy is the bit that I never got to: 1. persistence and what to do with kernels that don't understand specific policies 2. how to do the policies generically so that we don't make a huge mess of the code. 3. user interface for managing policies is has not been really thought through. SO, if someone wants a project that will keep them busy for many, many months... > Due to the timetable and other restrictions I wouldn't be able to > use patches that might come from fleshing out our ideas here, but I > think it would be very useful functionality for others. Yes, such things have long been considered useful. The problem is finding enough people to implement all the stuff we consider useful... Cheers, Dave. -- Dave Chinner david@fromorbit.com From suc@mexicocalendario2014.info Sun Aug 24 21:29:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 89ECA7F54 for ; Sun, 24 Aug 2014 21:29:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 35380AC001 for ; Sun, 24 Aug 2014 19:29:12 -0700 (PDT) X-ASG-Debug-ID: 1408933749-04bdf010974b4800001-NocioJ Received: from mail.mexicocalendario2014.info (mail.mexicocalendario2014.info [81.7.3.140]) by cuda.sgi.com with ESMTP id Kisf1w3pkCA03o2k for ; Sun, 24 Aug 2014 19:29:09 -0700 (PDT) X-Barracuda-Envelope-From: suc@mexicocalendario2014.info X-Barracuda-Apparent-Source-IP: 81.7.3.140 Received: from 81-7-3-140 (81.7.3.140) by mail.mexicocalendario2014.info id hvafna0our0b for ; Sun, 24 Aug 2014 21:29:08 -0500 (envelope-from ) mod: fd25f39a-7480-48bc-843f-89413644a548 Message-ID: <04f4135f3ca739fce5da2a5100104f7e@mexicocalendario2014.info> From: "Administracion" To: Subject: Eres un Buen Gerente? Date: Sun, 24 Aug 2014 21:29:08 -0500 X-ASG-Orig-Subj: Eres un Buen Gerente? 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Para YA no=20 recibir estos boletines a: xfs@oss.sgi.com simplemente = env=C3=ADe un=20 correo con asunto=20 = (fridf3y)

 

------=SPLITOR00A_001_238345706D-- From zhangqiang.buaa@gmail.com Sun Aug 24 22:34:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 43D4C7F56 for ; Sun, 24 Aug 2014 22:34:38 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 24267304051 for ; Sun, 24 Aug 2014 20:34:38 -0700 (PDT) X-ASG-Debug-ID: 1408937675-04cb6c5500526ef0001-NocioJ Received: from mail-lb0-f170.google.com (mail-lb0-f170.google.com [209.85.217.170]) by cuda.sgi.com with ESMTP id PPHn9rf3pVMzCv8j (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Sun, 24 Aug 2014 20:34:36 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.217.170 X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] Received: by mail-lb0-f170.google.com with SMTP id l4so11691299lbv.15 for ; Sun, 24 Aug 2014 20:34:34 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=UXQhJiTAdPTaUQ4pPyzfgPurjiHVFk1SSN9GEAmUsM8=; b=wpK/geFwaVD9FNBq7/7NfbBWDaVtAZk7u/HB4Qd3aHaHJ4ESMMOUsoBjqifRdW51UX G9D8FD8aEjLTq5mHx5RqV4fWuZo//rVVXRuf6qEYtWUgpE8UD2NANqq9E4KEf+vPiDFC 8h9gJ8QvBp98AjVEyP05VdqZUam70ItltdLYNEwifBU2SkWSvKSDdSnvFTkRoQ4TTS2H RDBEirLZykSMP+S+vInZl+BP+J51NdvNMs0XS1UM2wNe78ZG4chy7AllHyDoQpvNIuTx vxYGxIuoinj20PW+rqOiCLDB483rMkKdoF0Kc4b739Tqzo8kW/RRYqOqAbtXIsw6V8nd qZYA== MIME-Version: 1.0 X-Received: by 10.112.247.11 with SMTP id ya11mr17776125lbc.28.1408937674797; Sun, 24 Aug 2014 20:34:34 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Sun, 24 Aug 2014 20:34:34 -0700 (PDT) Date: Mon, 25 Aug 2014 11:34:34 +0800 Message-ID: Subject: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: bad performance on touch/cp file on XFS system To: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a113471dc9df63d05016bdd04 X-Barracuda-Connect: mail-lb0-f170.google.com[209.85.217.170] X-Barracuda-Start-Time: 1408937676 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8802 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a113471dc9df63d05016bdd04 Content-Type: text/plain; charset=UTF-8 Dear XFS community & developers, I am using CentOS 6.3 and xfs as base file system and use RAID5 as hardware storage. Detail environment as follow: OS: CentOS 6.3 Kernel: kernel-2.6.32-279.el6.x86_64 XFS option info(df output): /dev/sdb1 on /data type xfs (rw,noatime,nodiratime,nobarrier) Detail phenomenon: # df Filesystem Size Used Avail Use% Mounted on /dev/sda1 29G 17G 11G 61% / /dev/sdb1 893G 803G 91G 90% /data /dev/sda4 2.2T 1.6T 564G 75% /data1 # time touch /data1/1111 real 0m23.043s user 0m0.001s sys 0m0.349s # perf top Events: 6K cycles 16.96% [xfs] [k] xfs_inobt_get_rec 11.95% [xfs] [k] xfs_btree_increment 11.16% [xfs] [k] xfs_btree_get_rec 7.39% [xfs] [k] xfs_btree_get_block 5.02% [xfs] [k] xfs_dialloc 4.87% [xfs] [k] xfs_btree_rec_offset 4.33% [xfs] [k] xfs_btree_readahead 4.13% [xfs] [k] _xfs_buf_find 4.05% [kernel] [k] intel_idle 2.89% [xfs] [k] xfs_btree_rec_addr 1.04% [kernel] [k] kmem_cache_free It seems that some xfs kernel function spend much time (xfs_inobt_get_rec, xfs_btree_increment, etc.) I found a bug in bugzilla [1], is that is the same issue like this? It's very greatly appreciated if you can give constructive suggestion about this issue, as It's really hard to reproduce from another system and it's not possible to do upgrade on that online machine. [1] https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=813137 Thanks in advance Qiang --001a113471dc9df63d05016bdd04 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Dear XFS community & developers,

I am using CentOS 6.3 and xfs as base file system and use RAID5 as= hardware storage.

Detail environment as follow:
=C2=A0 =C2=A0OS: CentOS 6.3
=C2=A0 =C2=A0Kernel: kernel-2.6.= 32-279.el6.x86_64
=C2=A0 =C2=A0XFS option info(df output): /dev/s= db1 on /data type xfs (rw,noatime,nodiratime,nobarrier)

Detail phenomenon:
=C2=A0 =C2=A0=C2=A0
=C2=A0 =C2=A0 # df
=C2=A0 =C2= =A0 Filesystem =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Size =C2=A0Used Ava= il Use% Mounted on
=C2=A0 =C2=A0 /dev/sda1 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A029G =C2=A0 17G =C2=A0 11G =C2=A061% /
= =C2=A0 =C2=A0 /dev/sdb1 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 893G =C2= =A0803G =C2=A0 91G =C2=A090% /data
=C2=A0 =C2=A0 /dev/sda4 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 2.2T= =C2=A01.6T =C2=A0564G =C2=A075% /data1
=C2=A0 =C2=A0=C2=A0
=
=C2=A0 =C2=A0 # time touch /data1/1111
=C2=A0 =C2=A0 real = =C2=A0 =C2=A00m23.043s
=C2=A0 =C2=A0 user =C2=A0 =C2=A00m0.001s
=C2=A0 =C2=A0 sys =C2=A0 =C2=A0 0m0.349s
=C2=A0 =C2=A0= =C2=A0
=C2=A0 =C2=A0 # perf top
=C2=A0 =C2=A0 Events: 6K cycles
=C2=A0 =C2=A0 =C2=A016.96% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] xfs_inobt_get_rec
= =C2=A0 =C2=A0 =C2=A011.95% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] xfs_btree_increment
=C2=A0= =C2=A0 =C2=A011.16% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] xfs_btree_get_rec
=C2=A0 =C2=A0 =C2=A0 7.39% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] xfs_btree_get_block
= =C2=A0 =C2=A0 =C2=A0 5.02% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] xfs_dialloc
=C2=A0 =C2=A0 = =C2=A0 4.87% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 [k] xfs_btree_rec_offset
=C2=A0 =C2=A0 =C2= =A0 4.33% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 [k] xfs_btree_readahead
=C2=A0 =C2=A0 =C2=A0 4.13% =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] _xfs_buf_find
=C2=A0 = =C2=A0 =C2=A0 4.05% =C2=A0[kernel] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0[k] intel_idle
=C2=A0 =C2=A0 =C2=A0 2.89%= =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 [k] xfs_btree_rec_addr
=C2=A0 =C2=A0 =C2=A0 1.04% =C2=A0[= kernel] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] k= mem_cache_free


It seems that some xfs kernel function s= pend much time (xfs_inobt_get_rec, xfs_btree_increment, etc.)
I found a bug in bugzilla [1], is that is the same issue like t= his?

It's very greatly appreciated if you can give const= ructive suggestion about this issue, as It's really hard to reproduce f= rom another system and it's not possible to do upgrade on that online m= achine.



=
Thanks in advance
Qiang
--001a113471dc9df63d05016bdd04-- From david@fromorbit.com Mon Aug 25 00:18:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 19DB27F58 for ; Mon, 25 Aug 2014 00:18:13 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id DF7A1304048 for ; Sun, 24 Aug 2014 22:18:09 -0700 (PDT) X-ASG-Debug-ID: 1408943884-04bdf0109a4b9f90001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id HBNuEd7GpygDAEIF for ; Sun, 24 Aug 2014 22:18:04 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmUTACjG+lN5LDJ8PGdsb2JhbABZgw2BKoczp2wBAQEBBqRuAYETFwUBAQEBODaEAwEBBAE6HCMFCwgDGAklDwUlAwcaExSIJgfAHxcYhWSIZSJJB4RMBZxImH0rL4EHgUgBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Aug 2014 14:48:03 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XLmfJ-00061I-Bc; Mon, 25 Aug 2014 15:18:01 +1000 Date: Mon, 25 Aug 2014 15:18:01 +1000 From: Dave Chinner To: Zhang Qiang Cc: xfs@oss.sgi.com Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140825051801.GY26465@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1408943884 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8804 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote: > Dear XFS community & developers, > > I am using CentOS 6.3 and xfs as base file system and use RAID5 as hardware > storage. > > Detail environment as follow: > OS: CentOS 6.3 > Kernel: kernel-2.6.32-279.el6.x86_64 > XFS option info(df output): /dev/sdb1 on /data type xfs > (rw,noatime,nodiratime,nobarrier) > > Detail phenomenon: > > # df > Filesystem Size Used Avail Use% Mounted on > /dev/sda1 29G 17G 11G 61% / > /dev/sdb1 893G 803G 91G 90% /data > /dev/sda4 2.2T 1.6T 564G 75% /data1 > > # time touch /data1/1111 > real 0m23.043s > user 0m0.001s > sys 0m0.349s > > # perf top > Events: 6K cycles > 16.96% [xfs] [k] xfs_inobt_get_rec > 11.95% [xfs] [k] xfs_btree_increment > 11.16% [xfs] [k] xfs_btree_get_rec > 7.39% [xfs] [k] xfs_btree_get_block > 5.02% [xfs] [k] xfs_dialloc > 4.87% [xfs] [k] xfs_btree_rec_offset > 4.33% [xfs] [k] xfs_btree_readahead > 4.13% [xfs] [k] _xfs_buf_find > 4.05% [kernel] [k] intel_idle > 2.89% [xfs] [k] xfs_btree_rec_addr > 1.04% [kernel] [k] kmem_cache_free > > > It seems that some xfs kernel function spend much time (xfs_inobt_get_rec, > xfs_btree_increment, etc.) > > I found a bug in bugzilla [1], is that is the same issue like this? No. > It's very greatly appreciated if you can give constructive suggestion about > this issue, as It's really hard to reproduce from another system and it's > not possible to do upgrade on that online machine. You've got very few free inodes, widely distributed in the allocated inode btree. The CPU time above is the btree search for the next free inode. This is the issue solved by this series of recent commits to add a new on-disk free inode btree index: 53801fd xfs: enable the finobt feature on v5 superblocks 0c153c1 xfs: report finobt status in fs geometry a3fa516 xfs: add finobt support to growfs 3efa4ff xfs: update the finobt on inode free 2b64ee5 xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helper 6dd8638 xfs: use and update the finobt on inode allocation 0aa0a75 xfs: insert newly allocated inode chunks into the finobt 9d43b18 xfs: update inode allocation/free transaction reservations for finobt aafc3c2 xfs: support the XFS_BTNUM_FINOBT free inode btree type 8e2c84d xfs: reserve v5 superblock read-only compat. feature bit for finobt 57bd3db xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers Which is of no help to you, however, because it's not available in any CentOS kernel. There's really not much you can do to avoid the problem once you've punched random freespace holes in the allocated inode btree. IT generally doesn't affect many people; those that it does affect are normally using XFS as an object store indexed by a hard link farm (e.g. various backup programs do this). If you dump the superblock via xfs_db, the difference between icount and ifree will give you idea of how much "needle in a haystack" searching is going on. You can probably narrow it down to a specific AG by dumping the AGI headers and checking the same thing. filling in all the holes (by creating a bunch of zero length files in the appropriate AGs) might take some time, but it should make the problem go away until you remove more filesystem and create random free inode holes again... Cheers, Dave. -- Dave Chinner david@fromorbit.com From namjae.jeon@samsung.com Mon Aug 25 01:52:34 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 120DB7F5A for ; Mon, 25 Aug 2014 01:52:34 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E5BE0304048 for ; Sun, 24 Aug 2014 23:52:30 -0700 (PDT) X-ASG-Debug-ID: 1408949547-04cb6c54fd52c6f0001-NocioJ Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) by cuda.sgi.com with ESMTP id fZXPXW5ZO0EbO4gn (version=TLSv1 cipher=RC4-MD5 bits=128 verify=NO) for ; Sun, 24 Aug 2014 23:52:28 -0700 (PDT) X-Barracuda-Envelope-From: namjae.jeon@samsung.com X-Barracuda-Apparent-Source-IP: 203.254.224.33 Received: from epcpsbgr4.samsung.com (u144.gpu120.samsung.co.kr [203.254.230.144]) by mailout3.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NAU00HRPOFE7U70@mailout3.samsung.com> for xfs@oss.sgi.com; Mon, 25 Aug 2014 15:52:26 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.115]) by epcpsbgr4.samsung.com (EPCPMTA) with SMTP id D9.5E.04442.A2DDAF35; Mon, 25 Aug 2014 15:52:26 +0900 (KST) X-AuditID: cbfee690-f79ce6d00000115a-27-53fadd2a22c4 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id A5.22.05196.A2DDAF35; Mon, 25 Aug 2014 15:52:26 +0900 (KST) Received: from DONAMJAEJEO06 ([10.88.104.63]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NAU00KUXOFEZTB1@mmp2.samsung.com>; Mon, 25 Aug 2014 15:52:26 +0900 (KST) From: Namjae Jeon To: 'Brian Foster' Cc: 'Dave Chinner' , 'Theodore Ts'o' , linux-kernel@vger.kernel.org, xfs@oss.sgi.com, linux-fsdevel@vger.kernel.org, =?iso-8859-2?Q?'Luk=E1=B9_Czerner'?= , 'linux-ext4' References: <004301cfb2c6$6ef2d330$4cd87990$@samsung.com> <20140822120659.GF3152@laptop.bfoster> In-reply-to: <20140822120659.GF3152@laptop.bfoster> Subject: RE: [PATCH v5 2/10] xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate Date: Mon, 25 Aug 2014 15:52:26 +0900 X-ASG-Orig-Subj: RE: [PATCH v5 2/10] xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate Message-id: <001901cfc031$2140a950$63c1fbf0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-2 Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: AQH4GbaBpWRVdUyOkzDMM+qmsuCaGAJIM1vgm33n5UA= Content-language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrBIsWRmVeSWpSXmKPExsWyRsSkWFfr7q9gg7arkhbvPldZbDl2j9Fi 2YPNLBYz591hs9iz9ySLxeVdc9gsWnt+slss6rvF6MDhcWqRhEfTmaPMHqsvbGX0eL/vKpvH 501yAaxRXDYpqTmZZalF+nYJXBkLuvezFdzkr/iw16uBcRdPFyMnh4SAicSHJbuYIGwxiQv3 1rN1MXJxCAksZZRYe34vK0zRrv8rmCES0xkldq86xwjh/GWU6PpzBSjDwcEmoC3xZ4soSIOI gLrEnXkTWEBqmAVamCRWHF7FDpIQEkiSuLbmL9g6TgFjibZLD8A2CAuESJxuWMMGYrMIqEq8 6tgPVs8rYCnx+MZsKFtQ4sfkeywgu5gFdCS+TooACTMLyEtsXvOWGeJQBYkdZ18zQtxgJdHQ +5IdokZEYt+Ld2A3Swh8ZJe4/G8KI8QuAYlvkw+BzZQQkJXYdABqjqTEwRU3WCYwSsxCsnkW wuZZSDbPQrJhASPLKkbR1ILkguKk9CITveLE3OLSvHS95PzcTYzACD7979mEHYz3DlgfYhTg YFTi4V3B+StYiDWxrLgy9xCjKdBBE5mlRJPzgWkiryTe0NjMyMLUxNTYyNzSTEmc97XUz2Ah gfTEktTs1NSC1KL4otKc1OJDjEwcnFINjNNyzzPMvrDhxU4xzWf7PfOWrDV/NEfI4NTOSzdD u9hjFqdUav1g4VFgLilt9xFZ+LpwDlO8A8d0HtUbi1TLBJeYdmwwnxB3MPnOUkbWCOb5fg5B 7iwH3v9eP6vG69arhYX3t108VKs2Z6LMxYhepwPFArMkFL4VBfKVu092uOVw4MukxLbARUos xRmJhlrMRcWJAN+c9sXbAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprEKsWRmVeSWpSXmKPExsVy+t9jQV2tu7+CDX4eE7R497nKYsuxe4wW yx5sZrGYOe8Om8WevSdZLC7vmsNm0drzk91iUd8tRgcOj1OLJDyazhxl9lh9YSujx/t9V9k8 Pm+SC2CNamC0yUhNTEktUkjNS85PycxLt1XyDo53jjc1MzDUNbS0MFdSyEvMTbVVcvEJ0HXL zAE6RUmhLDGnFCgUkFhcrKRvh2lCaIibrgVMY4Sub0gQXI+RARpIWMOYsaB7P1vBTf6KD3u9 Ghh38XQxcnJICJhI7Pq/ghnCFpO4cG89WxcjF4eQwHRGid2rzjFCOH8ZJbr+XAGq4uBgE9CW +LNFFKRBREBd4s68CSwgNcwCLUwSKw6vYgdJCAkkSVxb85cJxOYUMJZou/SAFcQWFgiRON2w hg3EZhFQlXjVsR+snlfAUuLxjdlQtqDEj8n3WEB2MQvoSHydFAESZhaQl9i85i3UoQoSO86+ ZoS4wUqiofclO0SNiMS+F+8YJzAKzUIyaRbCpFlIJs1C0rGAkWUVo2hqQXJBcVJ6rpFecWJu cWleul5yfu4mRnB6eCa9g3FVg8UhRgEORiUe3pWcv4KFWBPLiitzDzFKcDArifBOOQ4U4k1J rKxKLcqPLyrNSS0+xGgK9OdEZinR5Hxg6soriTc0NjEzsjQyN7QwMjZXEuc92GodKCSQnliS mp2aWpBaBNPHxMEp1cCob8O0IOjYggj5m92dTH+/bSrqZv5r7KL6SEWiYOP2yQJv4rftXLEh nW/pGV+vc87OYT1W0ypPS1/QzTk9tXLb3L+cB94UX97lN+P4BhvL0z+Fdom8S6zgyk5c/sNT f6bw+huqk5PPbxdW6Hlrcvjz0S+3fhrGWnzbwqPAVPDG2Lzqu1LIaw4vJZbijERDLeai4kQA t28YjiUDAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected X-Barracuda-Connect: mailout3.samsung.com[203.254.224.33] X-Barracuda-Start-Time: 1408949548 X-Barracuda-Encrypted: RC4-MD5 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=THREAD_INDEX X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8806 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.01 THREAD_INDEX thread-index: AcO7Y8iR61tzADqsRmmc5wNiFHEOig== > Hi Namjae, Hi Brian. Thanks for your mail :) > > Sorry for finding things so late, but it looks like this suffers from > the same couple bugs we've recently discovered with the collapse range > patches. See the following for a couple fixes that have been proposed > recently: > > http://oss.sgi.com/archives/xfs/2014-08/msg00292.html > > This one helps prevent scenarios where we try to cancel a transaction > that is dirty. This leads to a shutdown on XFS. The idea is basically to > avoid logging until we actually make a change, so errors hit early in > the function (before we change anything) won't lead to an abort in the > error path. It looks like the bmap split and shift functions in this > patch could use the very same attention. Okay, I will add this commit to insert range patch. > > http://oss.sgi.com/archives/xfs/2014-08/index.html > > This one deals with a problem with the high level shift algorithm. The > problem with the algorithm here is that 'current_ext' can change > unexpectedly once we release the ilock due to writeback on parts of the > file before the range being collapsed/inserted. E.g., it is not a stable > index once ilock is dropped. The temporary solution is to flush the > entire file, since we have the iolock during the entire operation and > nothing else can dirty the file. The better fix is to track via an > offset across iterations of the shift, rather than the extent count > (iirc, xfs_bunmapi() and other bmap functions provide examples of this > kind of algorithm). Okay, I will check your points. > > Brian > > P.S., It's probably a good idea to remove my r-b tag on the next post as > well to avoid confusion and remind me that I need to take another look > at this. ;) Thanks again. Okay, I will remove it. Thanks Brian! > > > -- > > 1.7.11-rc0 > > > > _______________________________________________ > > xfs mailing list > > xfs@oss.sgi.com > > http://oss.sgi.com/mailman/listinfo/xfs From zhangqiang.buaa@gmail.com Mon Aug 25 03:09:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID,T_FRT_BELOW2 autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D37FC7F5E for ; Mon, 25 Aug 2014 03:09:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id C16B28F8037 for ; Mon, 25 Aug 2014 01:09:11 -0700 (PDT) X-ASG-Debug-ID: 1408954145-04cbb054887bafb0001-NocioJ Received: from mail-lb0-f170.google.com (mail-lb0-f170.google.com [209.85.217.170]) by cuda.sgi.com with ESMTP id Y4AT7H39jzpfrqjC (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 25 Aug 2014 01:09:06 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.217.170 X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] Received: by mail-lb0-f170.google.com with SMTP id l4so11833552lbv.1 for ; Mon, 25 Aug 2014 01:09:05 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=UKhvAvzDLCS+lsOkiux9JEwhIpnnzN43UieczOkOAi4=; b=WUyjqUAZbOi7d8A3rFTFdAnC82kC0Lv2mdO2wRtbUx/nXYWzwPV8rWUz45rschprt7 sqVRwkr9oRbdLaDlIEvNskFi2DnFiPUKDE3r4WBGbgDUWQZ1yXll4Rk3szDH+i4aJLOZ F3lz8bkA2JwEScRn2+5zegBUSz3lL5cGCh2WXeph1uLuTU0IhnT80wkDL94VDCqDX95C famb7LnPy8c2F2MRBQyLv7NAoYEFkAolIA5Nhb+tbXYXik2bwdYBBs/sEajOP46UBUR9 CrmIZUPlduav9HhCueXDN/pSILrvAE6gOI9j/7ifwkGdvMNiX6zgvx8fpeSs7VYgmqv/ /3hQ== MIME-Version: 1.0 X-Received: by 10.152.6.100 with SMTP id z4mr7000983laz.71.1408954145430; Mon, 25 Aug 2014 01:09:05 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Mon, 25 Aug 2014 01:09:05 -0700 (PDT) In-Reply-To: <20140825051801.GY26465@dastard> References: <20140825051801.GY26465@dastard> Date: Mon, 25 Aug 2014 16:09:05 +0800 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system To: Dave Chinner Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=089e01493e8057e80405016fb33d X-Barracuda-Connect: mail-lb0-f170.google.com[209.85.217.170] X-Barracuda-Start-Time: 1408954146 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8807 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --089e01493e8057e80405016fb33d Content-Type: text/plain; charset=UTF-8 Thanks for your quick and clear response. Some comments bellow: 2014-08-25 13:18 GMT+08:00 Dave Chinner : > On Mon, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote: > > Dear XFS community & developers, > > > > I am using CentOS 6.3 and xfs as base file system and use RAID5 as > hardware > > storage. > > > > Detail environment as follow: > > OS: CentOS 6.3 > > Kernel: kernel-2.6.32-279.el6.x86_64 > > XFS option info(df output): /dev/sdb1 on /data type xfs > > (rw,noatime,nodiratime,nobarrier) > > > > Detail phenomenon: > > > > # df > > Filesystem Size Used Avail Use% Mounted on > > /dev/sda1 29G 17G 11G 61% / > > /dev/sdb1 893G 803G 91G 90% /data > > /dev/sda4 2.2T 1.6T 564G 75% /data1 > > > > # time touch /data1/1111 > > real 0m23.043s > > user 0m0.001s > > sys 0m0.349s > > > > # perf top > > Events: 6K cycles > > 16.96% [xfs] [k] xfs_inobt_get_rec > > 11.95% [xfs] [k] xfs_btree_increment > > 11.16% [xfs] [k] xfs_btree_get_rec > > 7.39% [xfs] [k] xfs_btree_get_block > > 5.02% [xfs] [k] xfs_dialloc > > 4.87% [xfs] [k] xfs_btree_rec_offset > > 4.33% [xfs] [k] xfs_btree_readahead > > 4.13% [xfs] [k] _xfs_buf_find > > 4.05% [kernel] [k] intel_idle > > 2.89% [xfs] [k] xfs_btree_rec_addr > > 1.04% [kernel] [k] kmem_cache_free > > > > > > It seems that some xfs kernel function spend much time > (xfs_inobt_get_rec, > > xfs_btree_increment, etc.) > > > > I found a bug in bugzilla [1], is that is the same issue like this? > > No. > > > > It's very greatly appreciated if you can give constructive suggestion > about > > this issue, as It's really hard to reproduce from another system and it's > > not possible to do upgrade on that online machine. > > You've got very few free inodes, widely distributed in the allocated > inode btree. The CPU time above is the btree search for the next > free inode. > > This is the issue solved by this series of recent commits to add a > new on-disk free inode btree index: > [Qiang] This meas that if I want to fix this issue, I have to apply the following patches and build my own kernel. As the on-disk structure has been changed, so should I also re-create xfs filesystem again? is there any user space tools to convert old disk filesystem to new one, and don't need to backup and restore currently data? > > 53801fd xfs: enable the finobt feature on v5 superblocks > 0c153c1 xfs: report finobt status in fs geometry > a3fa516 xfs: add finobt support to growfs > 3efa4ff xfs: update the finobt on inode free > 2b64ee5 xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() > helper > 6dd8638 xfs: use and update the finobt on inode allocation > 0aa0a75 xfs: insert newly allocated inode chunks into the finobt > 9d43b18 xfs: update inode allocation/free transaction reservations for > finobt > aafc3c2 xfs: support the XFS_BTNUM_FINOBT free inode btree type > 8e2c84d xfs: reserve v5 superblock read-only compat. feature bit for finobt > 57bd3db xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers > > Which is of no help to you, however, because it's not available in > any CentOS kernel. > [Qiang] Do you think if it's possible to just backport these patches to kernel 6.2.32 (CentOS 6.3) to fix this issue? Or it's better to backport to 3.10 kernel, used in CentOS 7.0? > There's really not much you can do to avoid the problem once you've > punched random freespace holes in the allocated inode btree. IT > generally doesn't affect many people; those that it does affect are > normally using XFS as an object store indexed by a hard link farm > (e.g. various backup programs do this). > OK, I see. Could you please guide me to reproduce this issue easily? as I have tried to use a 500G xfs partition, and use about 98 % spaces, but still can't reproduce this issue. Is there any easy way from your mind? > If you dump the superblock via xfs_db, the difference between icount > and ifree will give you idea of how much "needle in a haystack" > searching is going on. You can probably narrow it down to a specific > AG by dumping the AGI headers and checking the same thing. filling > in all the holes (by creating a bunch of zero length files in the > appropriate AGs) might take some time, but it should make the > problem go away until you remove more filesystem and create random > free inode holes again... > I will try to investigate the detail issue. Thanks for your kindly response. Qiang > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > --089e01493e8057e80405016fb33d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thanks for your quick and clear response. Some comments be= llow:


2014= -08-25 13:18 GMT+08:00 Dave Chinner <david@fromorbit.com>:=
On M= on, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote:
> Dear XFS community & developers,
>
> I am using CentOS 6.3 and xfs as base file system and use RAID5 as har= dware
> storage.
>
> Detail environment as follow:
>=C2=A0 =C2=A0 OS: CentOS 6.3
>=C2=A0 =C2=A0 Kernel: kernel-2.6.32-279.el6.x86_64
>=C2=A0 =C2=A0 XFS option info(df output): /dev/sdb1 on /data type xfs > (rw,noatime,nodiratime,nobarrier)
>
> Detail phenomenon:
>
>=C2=A0 =C2=A0 =C2=A0# df
>=C2=A0 =C2=A0 =C2=A0Filesystem=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= Size=C2=A0 Used Avail Use% Mounted on
>=C2=A0 =C2=A0 =C2=A0/dev/sda1=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 29G=C2=A0 =C2=A017G=C2=A0 =C2=A011G=C2=A0 61% /
>=C2=A0 =C2=A0 =C2=A0/dev/sdb1=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0893G=C2=A0 803G=C2=A0 =C2=A091G=C2=A0 90% /data
>=C2=A0 =C2=A0 =C2=A0/dev/sda4=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A02.2T=C2=A0 1.6T=C2=A0 564G=C2=A0 75% /data1
>
>=C2=A0 =C2=A0 =C2=A0# time touch /data1/1111
>=C2=A0 =C2=A0 =C2=A0real=C2=A0 =C2=A0 0m23.043s
>=C2=A0 =C2=A0 =C2=A0user=C2=A0 =C2=A0 0m0.001s
>=C2=A0 =C2=A0 =C2=A0sys=C2=A0 =C2=A0 =C2=A00m0.349s
>
>=C2=A0 =C2=A0 =C2=A0# perf top
>=C2=A0 =C2=A0 =C2=A0Events: 6K cycles
>=C2=A0 =C2=A0 =C2=A0 16.96%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_inobt_get_rec
>=C2=A0 =C2=A0 =C2=A0 11.95%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_increment
>=C2=A0 =C2=A0 =C2=A0 11.16%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_get_rec
>=C2=A0 =C2=A0 =C2=A0 =C2=A07.39%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_get_block >=C2=A0 =C2=A0 =C2=A0 =C2=A05.02%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_dialloc
>=C2=A0 =C2=A0 =C2=A0 =C2=A04.87%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_offset >=C2=A0 =C2=A0 =C2=A0 =C2=A04.33%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_readahead >=C2=A0 =C2=A0 =C2=A0 =C2=A04.13%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] _xfs_buf_find
>=C2=A0 =C2=A0 =C2=A0 =C2=A04.05%=C2=A0 [kernel]=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] intel_idle
>=C2=A0 =C2=A0 =C2=A0 =C2=A02.89%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_addr
>=C2=A0 =C2=A0 =C2=A0 =C2=A01.04%=C2=A0 [kernel]=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] kmem_cache_free
>
>
> It seems that some xfs kernel function spend much time (xfs_inobt_get_= rec,
> xfs_btree_increment, etc.)
>
> I found a bug in bugzilla [1], is that is the same issue like this?
No.
=C2=A0

> It's very greatly appreciated if you can give constructive suggest= ion about
> this issue, as It's really hard to reproduce from another system a= nd it's
> not possible to do upgrade on that online machine.

You've got very few free inodes, widely distributed in the alloca= ted
inode btree. The CPU time above is the btree search for the next
free inode.

This is the issue solved by this series of recent commits to add a
new on-disk free inode btree index:
[Qiang] This meas = that if I want to fix this issue, I have to apply the following patches and= build my own kernel.

As the on-disk structure has= been changed, so should I also re-create xfs filesystem again? is there an= y user space tools to convert old disk filesystem to new one, and don't= need to backup and restore currently data?

=C2=A0

53801fd xfs: enable the finobt feature on v5 superblocks
0c153c1 xfs: report finobt status in fs geometry
a3fa516 xfs: add finobt support to growfs
3efa4ff xfs: update the finobt on inode free
2b64ee5 xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helpe= r
6dd8638 xfs: use and update the finobt on inode allocation
0aa0a75 xfs: insert newly allocated inode chunks into the finobt
9d43b18 xfs: update inode allocation/free transaction reservations for fino= bt
aafc3c2 xfs: support the XFS_BTNUM_FINOBT free inode btree type
8e2c84d xfs: reserve v5 superblock read-only compat. feature bit for finobt=
57bd3db xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers<= br>
Which is of no help to you, however, because it's not available in
any CentOS kernel.
[Qiang] Do you think if it's po= ssible to just backport these patches to kernel =C2=A06.2.32 (CentOS 6.3) t= o fix this issue?

Or it's better to backport t= o 3.10 kernel, used in CentOS 7.0?



There's really not much you can do to avoid the problem once you've=
punched random freespace holes in the allocated inode btree. IT
generally doesn't affect many people; those that it does affect are
normally using XFS as an object store indexed by a hard link farm
(e.g. various backup programs do this).
OK, I see.

Could you please guide me to reproduce this issue eas= ily? as I have tried to use a 500G xfs partition, and use about 98 % spaces= , but still can't reproduce this issue. Is there any easy way from your= mind?


If you dump the superblock via xfs_db, the difference between icount
and ifree will give you idea of how much "needle in a haystack" searching is going on. You can probably narrow it down to a specific
AG by dumping the AGI headers and checking the same thing. filling
in all the holes (by creating a bunch of zero length files in the
appropriate AGs) might take some time, but it should make the
problem go away until you remove more filesystem and create random
free inode holes again...
=C2=A0
I will try = to investigate the detail issue.

Thanks for your k= indly response.
Qiang
=C2=A0

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com

--089e01493e8057e80405016fb33d-- From zhangqiang.buaa@gmail.com Mon Aug 25 03:47:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 541267F4E for ; Mon, 25 Aug 2014 03:47:49 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 42234304051 for ; Mon, 25 Aug 2014 01:47:46 -0700 (PDT) X-ASG-Debug-ID: 1408956462-04cb6c54fe52f930001-NocioJ Received: from mail-lb0-f172.google.com (mail-lb0-f172.google.com [209.85.217.172]) by cuda.sgi.com with ESMTP id BrxRARjFF4ij8UkX (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 25 Aug 2014 01:47:43 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.217.172 X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.172] Received: by mail-lb0-f172.google.com with SMTP id z11so12038477lbi.3 for ; Mon, 25 Aug 2014 01:47:39 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.172] X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.172] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=Jn9/HOJOUa6hNZPW/o0SaVBrdoyN6WmvTchyTf/k4Dc=; b=ma6NYggBE60ixKsODLY8KlUCvRwVJ0EKpBEWHTBqFWeoSW+L1GM9X+n94FL4kTd+dc HSs5uBH27vLFQd0cFdYEaFLpZ/t4AqaSwEFW5y/9xlv7drkz6U8rRpmSvYsz9Wn8I2Ta qG3TWILWCg+W8GdAcQ103mH7fj4KObh0pMf9mGNliQNPsHDOyHQvy5vuC5LrWnzsUOGK 8IfqU/bBej0A3mnnTCx/QYlBfGdC4+PqDspvbTtW135RRa2LkRX448LkrAzUaIj/KSuY NhDWYRl45SipPJ7N59lo7N+M0LeKYYaT2zMgxvkMDO1jedUFK0BYr/M0udSPqh7W8AsK Irbg== MIME-Version: 1.0 X-Received: by 10.152.87.179 with SMTP id az19mr20247886lab.25.1408956459108; Mon, 25 Aug 2014 01:47:39 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Mon, 25 Aug 2014 01:47:39 -0700 (PDT) In-Reply-To: <20140825051801.GY26465@dastard> References: <20140825051801.GY26465@dastard> Date: Mon, 25 Aug 2014 16:47:39 +0800 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system To: Dave Chinner Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a11c353fa3fce430501703d36 X-Barracuda-Connect: mail-lb0-f172.google.com[209.85.217.172] X-Barracuda-Start-Time: 1408956463 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8808 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c353fa3fce430501703d36 Content-Type: text/plain; charset=UTF-8 I have checked icount and ifree, but I found there are about 11.8 percent free, so the free inode should not be too few. Here's the detail log, any new clue? # mount /dev/sda4 /data1/ # xfs_info /data1/ meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 blks = sectsz=512 attr=2, projid32bit=0 data = bsize=4096 blocks=569089536, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=277875, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 # umount /dev/sda4 # xfs_db /dev/sda4 xfs_db> sb 0 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = 128 rbmino = 129 rsumino = 130 rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 0 imax_pct = 5 icount = 220619904 ifree = 26202919 fdblocks = 147805479 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa xfs_db> sb 1 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = 128 rbmino = null rsumino = null rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 1 imax_pct = 5 icount = 0 ifree = 0 fdblocks = 568811645 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa xfs_db> sb 2 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = null rbmino = null rsumino = null rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 1 imax_pct = 5 icount = 0 ifree = 0 fdblocks = 568811645 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa xfs_db> sb 3 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = 128 rbmino = null rsumino = null rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 1 imax_pct = 5 icount = 0 ifree = 0 fdblocks = 568811645 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa 2014-08-25 13:18 GMT+08:00 Dave Chinner : > On Mon, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote: > > Dear XFS community & developers, > > > > I am using CentOS 6.3 and xfs as base file system and use RAID5 as > hardware > > storage. > > > > Detail environment as follow: > > OS: CentOS 6.3 > > Kernel: kernel-2.6.32-279.el6.x86_64 > > XFS option info(df output): /dev/sdb1 on /data type xfs > > (rw,noatime,nodiratime,nobarrier) > > > > Detail phenomenon: > > > > # df > > Filesystem Size Used Avail Use% Mounted on > > /dev/sda1 29G 17G 11G 61% / > > /dev/sdb1 893G 803G 91G 90% /data > > /dev/sda4 2.2T 1.6T 564G 75% /data1 > > > > # time touch /data1/1111 > > real 0m23.043s > > user 0m0.001s > > sys 0m0.349s > > > > # perf top > > Events: 6K cycles > > 16.96% [xfs] [k] xfs_inobt_get_rec > > 11.95% [xfs] [k] xfs_btree_increment > > 11.16% [xfs] [k] xfs_btree_get_rec > > 7.39% [xfs] [k] xfs_btree_get_block > > 5.02% [xfs] [k] xfs_dialloc > > 4.87% [xfs] [k] xfs_btree_rec_offset > > 4.33% [xfs] [k] xfs_btree_readahead > > 4.13% [xfs] [k] _xfs_buf_find > > 4.05% [kernel] [k] intel_idle > > 2.89% [xfs] [k] xfs_btree_rec_addr > > 1.04% [kernel] [k] kmem_cache_free > > > > > > It seems that some xfs kernel function spend much time > (xfs_inobt_get_rec, > > xfs_btree_increment, etc.) > > > > I found a bug in bugzilla [1], is that is the same issue like this? > > No. > > > It's very greatly appreciated if you can give constructive suggestion > about > > this issue, as It's really hard to reproduce from another system and it's > > not possible to do upgrade on that online machine. > > You've got very few free inodes, widely distributed in the allocated > inode btree. The CPU time above is the btree search for the next > free inode. > > This is the issue solved by this series of recent commits to add a > new on-disk free inode btree index: > > 53801fd xfs: enable the finobt feature on v5 superblocks > 0c153c1 xfs: report finobt status in fs geometry > a3fa516 xfs: add finobt support to growfs > 3efa4ff xfs: update the finobt on inode free > 2b64ee5 xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() > helper > 6dd8638 xfs: use and update the finobt on inode allocation > 0aa0a75 xfs: insert newly allocated inode chunks into the finobt > 9d43b18 xfs: update inode allocation/free transaction reservations for > finobt > aafc3c2 xfs: support the XFS_BTNUM_FINOBT free inode btree type > 8e2c84d xfs: reserve v5 superblock read-only compat. feature bit for finobt > 57bd3db xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers > > Which is of no help to you, however, because it's not available in > any CentOS kernel. > > There's really not much you can do to avoid the problem once you've > punched random freespace holes in the allocated inode btree. IT > generally doesn't affect many people; those that it does affect are > normally using XFS as an object store indexed by a hard link farm > (e.g. various backup programs do this). > > If you dump the superblock via xfs_db, the difference between icount > and ifree will give you idea of how much "needle in a haystack" > searching is going on. You can probably narrow it down to a specific > AG by dumping the AGI headers and checking the same thing. filling > in all the holes (by creating a bunch of zero length files in the > appropriate AGs) might take some time, but it should make the > problem go away until you remove more filesystem and create random > free inode holes again... > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > --001a11c353fa3fce430501703d36 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
I have checked icount and ifree, but I found there are abo= ut 11.8 percent free, so the free inode should not be too few.

Here's the detail log, any new clue?=C2=A0

<= div>
# mount /dev/sda4 /data1/
# xfs_info /data1/
meta-= data=3D/dev/sda4 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0isize=3D25= 6 =C2=A0 =C2=A0agcount=3D4, agsize=3D142272384 blks
=C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0=3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 sectsz=3D512 =C2=A0 attr=3D2, projid32bit=3D0
data =C2=A0 =C2=A0 =3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 bsize=3D4096 =C2=A0 blocks=3D569089536, ima= xpct=3D5
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sunit=3D0 =C2= =A0 =C2=A0 =C2=A0swidth=3D0 blks
naming =C2=A0 =3Dversion 2 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bsize=3D4096 =C2=A0 ascii-ci= =3D0
log =C2=A0 =C2=A0 =C2=A0=3Dinternal =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 bsize=3D4096 =C2=A0 blocks=3D277875, version=3D2
= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sectsz=3D512 =C2=A0 sunit=3D0 blk= s, lazy-count=3D1
realtime =3Dnone =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 extsz=3D4096 =C2=A0 blocks=3D0, rtextent= s=3D0
# umount /dev/sda4
# xfs_db /dev/sda4
xfs_db> s= b 0
xfs_db> p
magicnum =3D 0x58465342
bloc= ksize =3D 4096
dblocks =3D 569089536
rblocks =3D 0
rextents =3D 0
uuid =3D 13ecf47b-52cf-4944-9a71-885bddc5e008
logstart =3D 536870916
rootino =3D 128
rbmino =3D= 129
rsumino =3D 130
rextsize =3D 1
agblocks = =3D 142272384
agcount =3D 4
rbmblocks =3D 0
logblocks =3D 277875=
versionnum =3D 0xb4a4
sectsize =3D 512
inode= size =3D 256
inopblock =3D 16
fname =3D "\000\000\= 000\000\000\000\000\000\000\000\000\000"
blocklog =3D 12
sectlog =3D 9
inodelog =3D 8
=
inopblog =3D 4
agblklog =3D 28
rextslog =3D 0
inprogress =3D 0
imax_pct =3D 5
icount =3D 220619= 904
ifree =3D 26202919
fdblocks =3D 147805479
frextents =3D= 0
uquotino =3D 0
gquotino =3D 0
qflags =3D 0=
flags =3D 0
shared_vn =3D 0
inoalignmt =3D 2=
unit =3D 0
width =3D 0
dirblklog =3D 0
logsectlog =3D 0
=
logsectsize =3D 0
logsunit =3D 1
features2 =3D 0xa=
bad_features2 =3D 0xa
xfs_db> sb 1
xfs_db= > p
magicnum =3D 0x58465342
blocksize =3D 4096
dblocks= =3D 569089536
rblocks =3D 0
rextents =3D 0
u= uid =3D 13ecf47b-52cf-4944-9a71-885bddc5e008
logstart =3D 5368709= 16
rootino =3D 128
rbmino =3D null
rsumino =3D null
<= div>rextsize =3D 1
agblocks =3D 142272384
agcount =3D 4=
rbmblocks =3D 0
logblocks =3D 277875
version= num =3D 0xb4a4
sectsize =3D 512
inodesize =3D 256
inopblock =3D 1= 6
fname =3D "\000\000\000\000\000\000\000\000\000\000\000\00= 0"
blocklog =3D 12
sectlog =3D 9
inodelo= g =3D 8
inopblog =3D 4
agblklog =3D 28
rextslog =3D 0
inprogress =3D 1
imax_pct =3D 5
icount =3D 0
ifree =3D 0
fdblocks =3D 568811645
frextents =3D = 0
uquotino =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0
= shared_vn =3D 0
inoalignmt =3D 2
unit =3D 0
w= idth =3D 0
dirblklog =3D 0
logsectlog =3D 0
l= ogsectsize =3D 0
logsunit =3D 1
features2 =3D 0xa
bad_features2 =3D= 0xa
xfs_db> sb 2
xfs_db> p
magicnum = =3D 0x58465342
blocksize =3D 4096
dblocks =3D 569089536=
rblocks =3D 0
rextents =3D 0
uuid =3D 13ecf47b-52cf-494= 4-9a71-885bddc5e008
logstart =3D 536870916
rootino =3D = null
rbmino =3D null
rsumino =3D null
rextsiz= e =3D 1
agblocks =3D 142272384
agcount =3D 4
rbmblocks =3D= 0
logblocks =3D 277875
versionnum =3D 0xb4a4
sectsize =3D 512
inodesize =3D 256
inopblock =3D 16
fname =3D "\000\000\000\000\000\000\000\000\000\000\000\000&qu= ot;
blocklog =3D 12
sectlog =3D 9
inodelog =3D 8
=
inopblog =3D 4
agblklog =3D 28
rextslog =3D 0
inprogress =3D 1
imax_pct =3D 5
icount =3D 0
ifree =3D 0
fdblocks =3D 568811645
frextents =3D 0
uquotino = =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0=
shared_vn =3D 0
inoalignmt =3D 2
unit =3D 0<= /div>
width =3D 0
dirblklog =3D 0
logsectlog =3D 0
logsectsize =3D 0=
logsunit =3D 1
features2 =3D 0xa
bad_feature= s2 =3D 0xa
xfs_db> sb 3
xfs_db> p
magic= num =3D 0x58465342
blocksize =3D 4096
dblocks =3D 569089536
rblocks = =3D 0
rextents =3D 0
uuid =3D 13ecf47b-52cf-4944-9a71-8= 85bddc5e008
logstart =3D 536870916
rootino =3D 128
rbmino =3D null
rsumino =3D null
rextsize =3D 1
agblocks =3D 14227= 2384
agcount =3D 4
rbmblocks =3D 0
logblocks = =3D 277875
versionnum =3D 0xb4a4
sectsize =3D 512
=
inodesize =3D 256
inopblock =3D 16
fname =3D "\000\000\000\000\000\000\00= 0\000\000\000\000\000"
blocklog =3D 12
sectlog =3D= 9
inodelog =3D 8
inopblog =3D 4
agblklog =3D= 28
rextslog =3D 0
inprogress =3D 1
imax_pct =3D 5
icount =3D 0
ifree =3D 0
fdblocks =3D 568811645
=
frextents =3D 0
uquotino =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0
shared_vn =3D 0
inoalignmt =3D 2
=
unit =3D 0
width =3D 0
dirblklog =3D 0
l= ogsectlog =3D 0
logsectsize =3D 0
logsunit =3D 1
<= div>features2 =3D 0xa
bad_features2 =3D 0xa



2014-08-25 13:18 GMT+08:00 Da= ve Chinner <david@fromorbit.com>:
On M= on, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote:
> Dear XFS community & developers,
>
> I am using CentOS 6.3 and xfs as base file system and use RAID5 as har= dware
> storage.
>
> Detail environment as follow:
>=C2=A0 =C2=A0 OS: CentOS 6.3
>=C2=A0 =C2=A0 Kernel: kernel-2.6.32-279.el6.x86_64
>=C2=A0 =C2=A0 XFS option info(df output): /dev/sdb1 on /data type xfs > (rw,noatime,nodiratime,nobarrier)
>
> Detail phenomenon:
>
>=C2=A0 =C2=A0 =C2=A0# df
>=C2=A0 =C2=A0 =C2=A0Filesystem=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= Size=C2=A0 Used Avail Use% Mounted on
>=C2=A0 =C2=A0 =C2=A0/dev/sda1=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 29G=C2=A0 =C2=A017G=C2=A0 =C2=A011G=C2=A0 61% /
>=C2=A0 =C2=A0 =C2=A0/dev/sdb1=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0893G=C2=A0 803G=C2=A0 =C2=A091G=C2=A0 90% /data
>=C2=A0 =C2=A0 =C2=A0/dev/sda4=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A02.2T=C2=A0 1.6T=C2=A0 564G=C2=A0 75% /data1
>
>=C2=A0 =C2=A0 =C2=A0# time touch /data1/1111
>=C2=A0 =C2=A0 =C2=A0real=C2=A0 =C2=A0 0m23.043s
>=C2=A0 =C2=A0 =C2=A0user=C2=A0 =C2=A0 0m0.001s
>=C2=A0 =C2=A0 =C2=A0sys=C2=A0 =C2=A0 =C2=A00m0.349s
>
>=C2=A0 =C2=A0 =C2=A0# perf top
>=C2=A0 =C2=A0 =C2=A0Events: 6K cycles
>=C2=A0 =C2=A0 =C2=A0 16.96%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_inobt_get_rec
>=C2=A0 =C2=A0 =C2=A0 11.95%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_increment
>=C2=A0 =C2=A0 =C2=A0 11.16%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_get_rec
>=C2=A0 =C2=A0 =C2=A0 =C2=A07.39%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_get_block >=C2=A0 =C2=A0 =C2=A0 =C2=A05.02%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_dialloc
>=C2=A0 =C2=A0 =C2=A0 =C2=A04.87%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_offset >=C2=A0 =C2=A0 =C2=A0 =C2=A04.33%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_readahead >=C2=A0 =C2=A0 =C2=A0 =C2=A04.13%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] _xfs_buf_find
>=C2=A0 =C2=A0 =C2=A0 =C2=A04.05%=C2=A0 [kernel]=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] intel_idle
>=C2=A0 =C2=A0 =C2=A0 =C2=A02.89%=C2=A0 [xfs]=C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_addr
>=C2=A0 =C2=A0 =C2=A0 =C2=A01.04%=C2=A0 [kernel]=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 [k] kmem_cache_free
>
>
> It seems that some xfs kernel function spend much time (xfs_inobt_get_= rec,
> xfs_btree_increment, etc.)
>
> I found a bug in bugzilla [1], is that is the same issue like this?
No.

> It's very greatly appreciated if you can give constructive suggest= ion about
> this issue, as It's really hard to reproduce from another system a= nd it's
> not possible to do upgrade on that online machine.

You've got very few free inodes, widely distributed in the alloca= ted
inode btree. The CPU time above is the btree search for the next
free inode.

This is the issue solved by this series of recent commits to add a
new on-disk free inode btree index:

53801fd xfs: enable the finobt feature on v5 superblocks
0c153c1 xfs: report finobt status in fs geometry
a3fa516 xfs: add finobt support to growfs
3efa4ff xfs: update the finobt on inode free
2b64ee5 xfs: refactor xfs_difree() inobt bits into xfs_difree_inobt() helpe= r
6dd8638 xfs: use and update the finobt on inode allocation
0aa0a75 xfs: insert newly allocated inode chunks into the finobt
9d43b18 xfs: update inode allocation/free transaction reservations for fino= bt
aafc3c2 xfs: support the XFS_BTNUM_FINOBT free inode btree type
8e2c84d xfs: reserve v5 superblock read-only compat. feature bit for finobt=
57bd3db xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers<= br>
Which is of no help to you, however, because it's not available in
any CentOS kernel.

There's really not much you can do to avoid the problem once you've=
punched random freespace holes in the allocated inode btree. IT
generally doesn't affect many people; those that it does affect are
normally using XFS as an object store indexed by a hard link farm
(e.g. various backup programs do this).

If you dump the superblock via xfs_db, the difference between icount
and ifree will give you idea of how much "needle in a haystack" searching is going on. You can probably narrow it down to a specific
AG by dumping the AGI headers and checking the same thing. filling
in all the holes (by creating a bunch of zero length files in the
appropriate AGs) might take some time, but it should make the
problem go away until you remove more filesystem and create random
free inode holes again...

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com

--001a11c353fa3fce430501703d36-- From david@fromorbit.com Mon Aug 25 03:56:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FRT_BELOW2 autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 77BA97F4E for ; Mon, 25 Aug 2014 03:56:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 17068AC002 for ; Mon, 25 Aug 2014 01:56:21 -0700 (PDT) X-ASG-Debug-ID: 1408956979-04bdf010a14bf3a0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id Hn6vM6H65bkVG1O0 for ; Mon, 25 Aug 2014 01:56:19 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmUTAAv5+lN5LDJ8PGdsb2JhbABZgw2BKoczp3gBAQEBBqRuAYEbFwUBAQEBODaEAwEBBAE6HCMFCwgDGAklDwUlAwcaExSIJge/TBcYhWSIZSJJB4MvgR0FnEiYfSsvgQeBSAEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Aug 2014 18:26:18 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XLq4W-0006TW-EX; Mon, 25 Aug 2014 18:56:16 +1000 Date: Mon, 25 Aug 2014 18:56:16 +1000 From: Dave Chinner To: Zhang Qiang Cc: xfs@oss.sgi.com Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140825085616.GD20518@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: <20140825051801.GY26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1408956979 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8808 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 25, 2014 at 04:09:05PM +0800, Zhang Qiang wrote: > Thanks for your quick and clear response. Some comments bellow: > > > 2014-08-25 13:18 GMT+08:00 Dave Chinner : > > > On Mon, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote: > > > Dear XFS community & developers, > > > > > > I am using CentOS 6.3 and xfs as base file system and use RAID5 as > > hardware > > > storage. > > > > > > Detail environment as follow: > > > OS: CentOS 6.3 > > > Kernel: kernel-2.6.32-279.el6.x86_64 > > > XFS option info(df output): /dev/sdb1 on /data type xfs > > > (rw,noatime,nodiratime,nobarrier) .... > > > It's very greatly appreciated if you can give constructive suggestion > > about > > > this issue, as It's really hard to reproduce from another system and it's > > > not possible to do upgrade on that online machine. > > > > You've got very few free inodes, widely distributed in the allocated > > inode btree. The CPU time above is the btree search for the next > > free inode. > > > > This is the issue solved by this series of recent commits to add a > > new on-disk free inode btree index: > > > [Qiang] This meas that if I want to fix this issue, I have to apply the > following patches and build my own kernel. Yes. Good luck, even I wouldn't attempt to do that. And then use xfsprogs 3.2.1, and make a new filesystem that enables metadata CRCs and the free inode btree feature. > As the on-disk structure has been changed, so should I also re-create xfs > filesystem again? Yes, you need to download the latest xfsprogs (3.2.1) to be able to make it with the necessary feature bits set. > is there any user space tools to convert old disk > filesystem to new one, and don't need to backup and restore currently data? No, we don't write utilities to mangle on disk formats. dump, mkfs and restore is far more reliable than any "in-place conversion" code we could write. It will probably be faster, too. > > Which is of no help to you, however, because it's not available in > > any CentOS kernel. > > > [Qiang] Do you think if it's possible to just backport these patches to > kernel 6.2.32 (CentOS 6.3) to fix this issue? > > Or it's better to backport to 3.10 kernel, used in CentOS 7.0? You can try, but if you break it you get to keep all the pieces yourself. Eventually someone who maintains the RHEL code will do a backport that will trickle down to CentOS. If you need it any sooner, then you'll need to do it yourself, or upgrade to RHEL and ask your support contact for it to be included in RHEL 7.1.... > > There's really not much you can do to avoid the problem once you've > > punched random freespace holes in the allocated inode btree. IT > > generally doesn't affect many people; those that it does affect are > > normally using XFS as an object store indexed by a hard link farm > > (e.g. various backup programs do this). > > > OK, I see. > > Could you please guide me to reproduce this issue easily? as I have tried > to use a 500G xfs partition, and use about 98 % spaces, but still can't > reproduce this issue. Is there any easy way from your mind? Search the archives for the test cases that were used for the patch set. There's a performance test case documented in the review discussions. Cheers, Dave. -- Dave Chinner david@fromorbit.com From zhangqiang.buaa@gmail.com Mon Aug 25 04:05:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID,T_FRT_BELOW2 autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 54B257F4E for ; Mon, 25 Aug 2014 04:05:40 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 42DF38F8033 for ; Mon, 25 Aug 2014 02:05:37 -0700 (PDT) X-ASG-Debug-ID: 1408957533-04cbb054867bc870001-NocioJ Received: from mail-la0-f51.google.com (mail-la0-f51.google.com [209.85.215.51]) by cuda.sgi.com with ESMTP id HVpFJ7tcUnIDWV6Y (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 25 Aug 2014 02:05:34 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.215.51 X-Barracuda-IPDD: Level1 [gmail.com/209.85.215.51] Received: by mail-la0-f51.google.com with SMTP id pn19so12235804lab.24 for ; Mon, 25 Aug 2014 02:05:33 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.215.51] X-Barracuda-IPDD: Level1 [gmail.com/209.85.215.51] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=7cm0RfRZspK94Efg/FFvSseiMvDhI/zyX+9xtmVahXA=; b=es/wsAPjLIeqrWRXId6UifYzlAtp5yKw5Zf6fVr5V8WNT7ZvnvT3Mscz92WepYR4Uy kVenv1f7UA0GLZK9it1wA7MGyPVg/Imcdus6+7DYw6rBvmtU81ZrniQsVMqoouZhOh0e kHVTNcwtW5NBB10WURb7hih5x0fFmOS72TVelYrsySWd0NtNuVPZUWSvWez36LDf5SJ7 iQ9Ditu4Vt5sk72JqeAPZfoQZO95OpQAE+s5ms20EJcQrHiDaE3idJEazMriefkXSujU fYY3C7JqJmzWx7e89yAePTycXJhKuzJrvjefvQf6nUsueItAsoZZs1XtTQRxoh2AuODD iP0Q== MIME-Version: 1.0 X-Received: by 10.112.199.161 with SMTP id jl1mr435091lbc.59.1408957533129; Mon, 25 Aug 2014 02:05:33 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Mon, 25 Aug 2014 02:05:33 -0700 (PDT) In-Reply-To: <20140825085616.GD20518@dastard> References: <20140825051801.GY26465@dastard> <20140825085616.GD20518@dastard> Date: Mon, 25 Aug 2014 17:05:33 +0800 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system To: Dave Chinner Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=001a11c34b184411fe0501707d35 X-Barracuda-Connect: mail-la0-f51.google.com[209.85.215.51] X-Barracuda-Start-Time: 1408957534 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8808 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --001a11c34b184411fe0501707d35 Content-Type: text/plain; charset=UTF-8 Great, thank you. >From my xfs_db debug, I found I have icount and ifree as follow: icount = 220619904 ifree = 26202919 So the number of free inode take about 10%, so that's not so few. So, are you still sure the patches can fix this issue? Here's the detail xfs_db info: # mount /dev/sda4 /data1/ # xfs_info /data1/ meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 blks = sectsz=512 attr=2, projid32bit=0 data = bsize=4096 blocks=569089536, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=277875, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 # umount /dev/sda4 # xfs_db /dev/sda4 xfs_db> sb 0 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = 128 rbmino = 129 rsumino = 130 rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 0 imax_pct = 5 icount = 220619904 ifree = 26202919 fdblocks = 147805479 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa xfs_db> sb 1 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = 128 rbmino = null rsumino = null rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 1 imax_pct = 5 icount = 0 ifree = 0 fdblocks = 568811645 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa xfs_db> sb 2 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = null rbmino = null rsumino = null rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 1 imax_pct = 5 icount = 0 ifree = 0 fdblocks = 568811645 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa xfs_db> sb 3 xfs_db> p magicnum = 0x58465342 blocksize = 4096 dblocks = 569089536 rblocks = 0 rextents = 0 uuid = 13ecf47b-52cf-4944-9a71-885bddc5e008 logstart = 536870916 rootino = 128 rbmino = null rsumino = null rextsize = 1 agblocks = 142272384 agcount = 4 rbmblocks = 0 logblocks = 277875 versionnum = 0xb4a4 sectsize = 512 inodesize = 256 inopblock = 16 fname = "\000\000\000\000\000\000\000\000\000\000\000\000" blocklog = 12 sectlog = 9 inodelog = 8 inopblog = 4 agblklog = 28 rextslog = 0 inprogress = 1 imax_pct = 5 icount = 0 ifree = 0 fdblocks = 568811645 frextents = 0 uquotino = 0 gquotino = 0 qflags = 0 flags = 0 shared_vn = 0 inoalignmt = 2 unit = 0 width = 0 dirblklog = 0 logsectlog = 0 logsectsize = 0 logsunit = 1 features2 = 0xa bad_features2 = 0xa Thanks Qiang 2014-08-25 16:56 GMT+08:00 Dave Chinner : > On Mon, Aug 25, 2014 at 04:09:05PM +0800, Zhang Qiang wrote: > > Thanks for your quick and clear response. Some comments bellow: > > > > > > 2014-08-25 13:18 GMT+08:00 Dave Chinner : > > > > > On Mon, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote: > > > > Dear XFS community & developers, > > > > > > > > I am using CentOS 6.3 and xfs as base file system and use RAID5 as > > > hardware > > > > storage. > > > > > > > > Detail environment as follow: > > > > OS: CentOS 6.3 > > > > Kernel: kernel-2.6.32-279.el6.x86_64 > > > > XFS option info(df output): /dev/sdb1 on /data type xfs > > > > (rw,noatime,nodiratime,nobarrier) > .... > > > > > It's very greatly appreciated if you can give constructive suggestion > > > about > > > > this issue, as It's really hard to reproduce from another system and > it's > > > > not possible to do upgrade on that online machine. > > > > > > You've got very few free inodes, widely distributed in the allocated > > > inode btree. The CPU time above is the btree search for the next > > > free inode. > > > > > > This is the issue solved by this series of recent commits to add a > > > new on-disk free inode btree index: > > > > > [Qiang] This meas that if I want to fix this issue, I have to apply the > > following patches and build my own kernel. > > Yes. Good luck, even I wouldn't attempt to do that. > > And then use xfsprogs 3.2.1, and make a new filesystem that enables > metadata CRCs and the free inode btree feature. > > > As the on-disk structure has been changed, so should I also re-create xfs > > filesystem again? > > Yes, you need to download the latest xfsprogs (3.2.1) to be able to > make it with the necessary feature bits set. > > > is there any user space tools to convert old disk > > filesystem to new one, and don't need to backup and restore currently > data? > > No, we don't write utilities to mangle on disk formats. dump, mkfs > and restore is far more reliable than any "in-place conversion" code > we could write. It will probably be faster, too. > > > > Which is of no help to you, however, because it's not available in > > > any CentOS kernel. > > > > > [Qiang] Do you think if it's possible to just backport these patches to > > kernel 6.2.32 (CentOS 6.3) to fix this issue? > > > > Or it's better to backport to 3.10 kernel, used in CentOS 7.0? > > You can try, but if you break it you get to keep all the pieces > yourself. Eventually someone who maintains the RHEL code will do a > backport that will trickle down to CentOS. If you need it any > sooner, then you'll need to do it yourself, or upgrade to RHEL > and ask your support contact for it to be included in RHEL 7.1.... > > > > There's really not much you can do to avoid the problem once you've > > > punched random freespace holes in the allocated inode btree. IT > > > generally doesn't affect many people; those that it does affect are > > > normally using XFS as an object store indexed by a hard link farm > > > (e.g. various backup programs do this). > > > > > OK, I see. > > > > Could you please guide me to reproduce this issue easily? as I have tried > > to use a 500G xfs partition, and use about 98 % spaces, but still can't > > reproduce this issue. Is there any easy way from your mind? > > Search the archives for the test cases that were used for the patch > set. There's a performance test case documented in the review > discussions. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > --001a11c34b184411fe0501707d35 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Great, thank you.

From my xfs_db debug,= I found I have icount and ifree as follow:

i= count =3D 220619904
ifree =3D 26202919

S= o the number of free inode take about 10%, so that's not so few.

So, are you still sure the patches can fix this issue?<= /div>

Here's the detail xfs_db info:

<= /div>
# mount /dev/sda4 /data1/
# xfs_info /data1/
meta-data=3D/dev/sda4 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= isize=3D256 =C2=A0 =C2=A0agcount=3D4, agsize=3D142272384 blks
=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sectsz=3D512 =C2=A0 attr=3D2, projid= 32bit=3D0
data =C2=A0 =C2=A0 =3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 bsize=3D4096 =C2=A0 blocks=3D= 569089536, imaxpct=3D5
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sunit=3D0 =C2=A0 =C2=A0 =C2= =A0swidth=3D0 blks
naming =C2=A0 =3Dversion 2 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0bsize=3D4096 =C2=A0 ascii-ci=3D0
l= og =C2=A0 =C2=A0 =C2=A0=3Dinternal =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 bsize=3D4096 =C2=A0 blocks=3D277875, version=3D2
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0=3D =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 sectsz=3D512 =C2=A0 sunit=3D0 blk= s, lazy-count=3D1
realtime =3Dnone =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 extsz=3D4096 =C2=A0 blocks=3D0, rtextent= s=3D0
# umount /dev/sda4
# xfs_db /dev/sda4
x= fs_db> sb 0
xfs_db> p
magicnum =3D 0x58465342
blocksize =3D= 4096
dblocks =3D 569089536
rblocks =3D 0
rex= tents =3D 0
uuid =3D 13ecf47b-52cf-4944-9a71-885bddc5e008
logstart =3D 536870916
rootino =3D 128
rbmino =3D 129
rsumino =3D 130
rextsize =3D 1
agblocks =3D 142272384
agcount = =3D 4
rbmblocks =3D 0
logblocks =3D 277875
ve= rsionnum =3D 0xb4a4
sectsize =3D 512
inodesize =3D 256
inopblock =3D 1= 6
fname =3D "\000\000\000\000\000\000\000\000\000\000\000\00= 0"
blocklog =3D 12
sectlog =3D 9
inodelo= g =3D 8
inopblog =3D 4
agblklog =3D 28
rextslog =3D 0
inprogress =3D 0
imax_pct =3D 5
icount =3D 220619= 904
ifree =3D 26202919
fdblocks =3D 147805479
frextents =3D 0
uquotino =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0
shared_vn =3D 0
inoalignmt =3D 2
unit =3D 0
width =3D 0
dirblklog =3D 0
log= sectlog =3D 0
logsectsize =3D 0
logsunit =3D 1
features2 =3D 0xa=
bad_features2 =3D 0xa
xfs_db> sb 1
xfs_db= > p
magicnum =3D 0x58465342
blocksize =3D 4096
=
dblocks =3D 569089536
rblocks =3D 0
rextents =3D 0
uuid =3D 13ecf47b-52c= f-4944-9a71-885bddc5e008
logstart =3D 536870916
rootino= =3D 128
rbmino =3D null
rsumino =3D null
rex= tsize =3D 1
agblocks =3D 142272384
agcount =3D 4
rbmblocks =3D= 0
logblocks =3D 277875
versionnum =3D 0xb4a4
sectsize =3D 512
inodesize =3D 256
inopblock =3D 16
fname =3D "\000\000\000\000\000\000\000\000\000\000\000\000&qu= ot;
blocklog =3D 12
sectlog =3D 9
inodelog =3D 8
=
inopblog =3D 4
agblklog =3D 28
rextslog =3D 0
inprogress =3D 1
imax_pct =3D 5
icount =3D 0
ifree =3D 0
fdblocks =3D 568811645
frextents =3D 0
uquotino = =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0=
shared_vn =3D 0
inoalignmt =3D 2
unit =3D 0<= /div>
width =3D 0
dirblklog =3D 0
logsectlog =3D 0
logsectsize =3D 0=
logsunit =3D 1
features2 =3D 0xa
bad_feature= s2 =3D 0xa
xfs_db> sb 2
xfs_db> p
magic= num =3D 0x58465342
blocksize =3D 4096
dblocks =3D 569089536
rblocks = =3D 0
rextents =3D 0
uuid =3D 13ecf47b-52cf-4944-9a71-8= 85bddc5e008
logstart =3D 536870916
rootino =3D null
rbmino =3D null
rsumino =3D null
rextsize =3D 1
agblocks =3D 14227= 2384
agcount =3D 4
rbmblocks =3D 0
logblocks = =3D 277875
versionnum =3D 0xb4a4
sectsize =3D 512
=
inodesize =3D 256
inopblock =3D 16
fname =3D "\000\000\000\000\000\000\00= 0\000\000\000\000\000"
blocklog =3D 12
sectlog =3D= 9
inodelog =3D 8
inopblog =3D 4
agblklog =3D= 28
rextslog =3D 0
inprogress =3D 1
imax_pct =3D 5
icount =3D 0
ifree =3D 0
fdblocks =3D 568811645
=
frextents =3D 0
uquotino =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0
shared_vn =3D 0
inoalignmt =3D 2
=
unit =3D 0
width =3D 0
dirblklog =3D 0
l= ogsectlog =3D 0
logsectsize =3D 0
logsunit =3D 1
<= div>features2 =3D 0xa
bad_features2 =3D 0xa
xfs_db> sb 3
xfs_db> p=
magicnum =3D 0x58465342
blocksize =3D 4096
d= blocks =3D 569089536
rblocks =3D 0
rextents =3D 0
=
uuid =3D 13ecf47b-52cf-4944-9a71-885bddc5e008
logstart =3D 536870916
rootino =3D 128
rbmino =3D = null
rsumino =3D null
rextsize =3D 1
agblocks= =3D 142272384
agcount =3D 4
rbmblocks =3D 0
= logblocks =3D 277875
versionnum =3D 0xb4a4
sectsize =3D 512
inodesize = =3D 256
inopblock =3D 16
fname =3D "\000\000\000\0= 00\000\000\000\000\000\000\000\000"
blocklog =3D 12
sectlog =3D 9
inodelog =3D 8
inopblog =3D 4
agblklog =3D 28
rextslog =3D 0
inprogress =3D 1
imax_pct =3D 5
icount =3D 0
ifree =3D 0
fdblocks =3D 568811645=
frextents =3D 0
uquotino =3D 0
gquotino =3D 0
qflags =3D 0
flags =3D 0
shared_vn =3D 0
inoalignmt =3D 2
unit =3D 0
width =3D 0
dirblklog =3D 0
log= sectlog =3D 0
logsectsize =3D 0
logsunit =3D 1
features2 =3D 0xa=
bad_features2 =3D 0xa


<= div>Thanks
Qiang

<= br>
2014-08-25 16:56 GMT+08:00 Dave Chinner <davi= d@fromorbit.com>:
On Mon, Aug 25, 2014 at 04:09:05PM +0800, Zhang Qiang wrote= :
> Thanks for your quick and clear response. Some comments bellow:
>
>
> 2014-08-25 13:18 GMT+08:00 Dave Chinner <david@fromorbit.com>:
>
> > On Mon, Aug 25, 2014 at 11:34:34AM +0800, Zhang Qiang wrote:
> > > Dear XFS community & developers,
> > >
> > > I am using CentOS 6.3 and xfs as base file system and use RA= ID5 as
> > hardware
> > > storage.
> > >
> > > Detail environment as follow:
> > >=C2=A0 =C2=A0 OS: CentOS 6.3
> > >=C2=A0 =C2=A0 Kernel: kernel-2.6.32-279.el6.x86_64
> > >=C2=A0 =C2=A0 XFS option info(df output): /dev/sdb1 on /data = type xfs
> > > (rw,noatime,nodiratime,nobarrier)
....

> > > It's very greatly appreciated if you can give constructi= ve suggestion
> > about
> > > this issue, as It's really hard to reproduce from anothe= r system and it's
> > > not possible to do upgrade on that online machine.
> >
> > You've got very few free inodes, widely distributed in the al= located
> > inode btree. The CPU time above is the btree search for the next<= br> > > free inode.
> >
> > This is the issue solved by this series of recent commits to add = a
> > new on-disk free inode btree index:
> >
> [Qiang] This meas that if I want to fix this issue, I have to apply th= e
> following patches and build my own kernel.

Yes. Good luck, even I wouldn't attempt to do that.

And then use xfsprogs 3.2.1, and make a new filesystem that enables
metadata CRCs and the free inode btree feature.

> As the on-disk structure has been changed, so should I also re-create = xfs
> filesystem again?

Yes, you need to download the latest xfsprogs (3.2.1) to be able to make it with the necessary feature bits set.

> is there any user space tools to convert old disk
> filesystem to new one, and don't need to backup and restore curren= tly data?

No, we don't write utilities to mangle on disk formats. dump, mkf= s
and restore is far more reliable than any "in-place conversion" c= ode
we could write. It will probably be faster, too.

> > Which is of no help to you, however, because it's not availab= le in
> > any CentOS kernel.
> >
> [Qiang] Do you think if it's possible to just backport these patch= es to
> kernel=C2=A0 6.2.32 (CentOS 6.3) to fix this issue?
>
> Or it's better to backport to 3.10 kernel, used in CentOS 7.0?

You can try, but if you break it you get to keep all the pieces
yourself. Eventually someone who maintains the RHEL code will do a
backport that will trickle down to CentOS. If you need it any
sooner, then you'll need to do it yourself, or upgrade to RHEL
and ask your support contact for it to be included in RHEL 7.1....

> > There's really not much you can do to avoid the problem once = you've
> > punched random freespace holes in the allocated inode btree. IT > > generally doesn't affect many people; those that it does affe= ct are
> > normally using XFS as an object store indexed by a hard link farm=
> > (e.g. various backup programs do this).
> >
> OK, I see.
>
> Could you please guide me to reproduce this issue easily? as I have tr= ied
> to use a 500G xfs partition, and use about 98 % spaces, but still can&= #39;t
> reproduce this issue. Is there any easy way from your mind?

Search the archives for the test cases that were used for the patch set. There's a performance test case documented in the review
discussions.

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http:= //oss.sgi.com/mailman/listinfo/xfs

--001a11c34b184411fe0501707d35-- From david@fromorbit.com Mon Aug 25 04:08:51 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id ACACF7F4E for ; Mon, 25 Aug 2014 04:08:51 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4B2DCAC002 for ; Mon, 25 Aug 2014 02:08:48 -0700 (PDT) X-ASG-Debug-ID: 1408957725-04bdf010a04bf9b0001-NocioJ Received: from ipmail06.adl2.internode.on.net (ipmail06.adl2.internode.on.net [150.101.137.129]) by cuda.sgi.com with ESMTP id yYrUW7WGHPTLenZ8 for ; Mon, 25 Aug 2014 02:08:45 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.129 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmQTAIP8+lN5LDJ8PGdsb2JhbABagw2BKoczp3gBAQEBBqRuAYEbFwUBAQEBODaEAwEBBAE6HCMFCwgDGAklDwUlAwcaE4g6B79EFxiFZIlQB4MvgR0FnEiYfSsvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl2.internode.on.net with ESMTP; 25 Aug 2014 18:38:45 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XLqGZ-0006Wk-Ub; Mon, 25 Aug 2014 19:08:43 +1000 Date: Mon, 25 Aug 2014 19:08:43 +1000 From: Dave Chinner To: Zhang Qiang Cc: xfs@oss.sgi.com Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140825090843.GE20518@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: <20140825051801.GY26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl2.internode.on.net[150.101.137.129] X-Barracuda-Start-Time: 1408957725 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8808 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wrote: > I have checked icount and ifree, but I found there are about 11.8 percent > free, so the free inode should not be too few. > > Here's the detail log, any new clue? > > # mount /dev/sda4 /data1/ > # xfs_info /data1/ > meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 4 AGs > icount = 220619904 > ifree = 26202919 And 220 million inodes. There's your problem - that's an average of 55 million inodes per AGI btree assuming you are using inode64. If you are using inode32, then the inodes will be in 2 btrees, or maybe even only one. Anyway you look at it, searching btrees with tens of millions of entries is going to consume a *lot* of CPU time. So, really, the state your fs is in is probably unfixable without mkfs. And really, that's probably pushing the boundaries of what xfsdump and xfs-restore can support - it's going to take a long tiem to dump and restore that data.... With that many inodes, I'd be considering moving to 32 or 64 AGs to keep the btree size down to a more manageable size. The free inode btree would also help, but, really, 220M inodes in a 2TB filesystem is really pushing the boundaries of sanity..... Cheers, Dave. -- Dave Chinner david@fromorbit.com From zhangqiang.buaa@gmail.com Mon Aug 25 05:31:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 11F6B7F4E for ; Mon, 25 Aug 2014 05:31:17 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 0085930404E for ; Mon, 25 Aug 2014 03:31:13 -0700 (PDT) X-ASG-Debug-ID: 1408962671-04cb6c54fd533050001-NocioJ Received: from mail-lb0-f170.google.com (mail-lb0-f170.google.com [209.85.217.170]) by cuda.sgi.com with ESMTP id zH70WNAbnS14FOc9 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 25 Aug 2014 03:31:12 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.217.170 X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] Received: by mail-lb0-f170.google.com with SMTP id l4so11994952lbv.1 for ; Mon, 25 Aug 2014 03:31:11 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.170] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=1Znqku2513v6PmO/svCBtpVBGqt5TEwfZfyCcpwTp18=; b=AqgM7n/b9GKVBn2f2W04cG713KgIdLobgvMkonaupPRnRaQXraqIbkjwJ6SxDDi2N2 HCwxKBbuxkRESqWSZEOqyyjRgRZZXWFW0b1LtNIN38mH/6rpMHqAWrH3W1M8kLSbGyJb uCouMZKNauEb24jIDMt7+Uruv9JBPR753/+kzSeTUcKtJDNFEn3VoqTALdzyiCE64s/c zHsKBUQ5MLMmNF11uzBrwPMKkkFkTH0MEsOQtteVWnL6ooJyYUHgbTSObf4dKYmpjfsw 2Pwkf+KAeOYtZmwvNy7T97UyICmPtiJyEcBnIzvGWyMWsuyh4jybqtzUxYnQzTGPJD0U fiBw== MIME-Version: 1.0 X-Received: by 10.152.2.9 with SMTP id 9mr16741467laq.65.1408962671045; Mon, 25 Aug 2014 03:31:11 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Mon, 25 Aug 2014 03:31:10 -0700 (PDT) In-Reply-To: <20140825090843.GE20518@dastard> References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> Date: Mon, 25 Aug 2014 18:31:10 +0800 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system To: Dave Chinner Cc: xfs@oss.sgi.com Content-Type: multipart/alternative; boundary=089e0112c0b08270ac050171af03 X-Barracuda-Connect: mail-lb0-f170.google.com[209.85.217.170] X-Barracuda-Start-Time: 1408962672 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8809 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message --089e0112c0b08270ac050171af03 Content-Type: text/plain; charset=UTF-8 2014-08-25 17:08 GMT+08:00 Dave Chinner : > On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wrote: > > I have checked icount and ifree, but I found there are about 11.8 percent > > free, so the free inode should not be too few. > > > > Here's the detail log, any new clue? > > > > # mount /dev/sda4 /data1/ > > # xfs_info /data1/ > > meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 > > 4 AGs > Yes. > > > icount = 220619904 > > ifree = 26202919 > > And 220 million inodes. There's your problem - that's an average > of 55 million inodes per AGI btree assuming you are using inode64. > If you are using inode32, then the inodes will be in 2 btrees, or > maybe even only one. > You are right, all inodes stay on one AG. BTW, why i allocate 4 AGs, and all inodes stay in one AG for inode32?, sorry as I am not familiar with xfs currently. > > Anyway you look at it, searching btrees with tens of millions of > entries is going to consume a *lot* of CPU time. So, really, the > state your fs is in is probably unfixable without mkfs. And really, > that's probably pushing the boundaries of what xfsdump and > xfs-restore can support - it's going to take a long tiem to dump and > restore that data.... > Thanks reasonable. > With that many inodes, I'd be considering moving to 32 or 64 AGs to > keep the btree size down to a more manageable size. The free inode btree would also help, but, really, 220M inodes in a 2TB filesystem > is really pushing the boundaries of sanity..... > So the better inodes size in one AG is about 5M, is there any documents about these options I can learn more? I will spend more time to learn how to use xfs, and the internal of xfs, and try to contribute code. Thanks for your help. > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs > --089e0112c0b08270ac050171af03 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable



2014-08-25 17:08 GMT+08:00 Dave Chinner <david@fromorbit.com= >:
On Mon, Aug 25, 2014 at 04:4= 7:39PM +0800, Zhang Qiang wrote:
> I have checked icount and ifree, but I found there are about 11.8 perc= ent
> free, so the free inode should not be too few.
>
> Here's the detail log, any new clue?
>
> # mount /dev/sda4 /data1/
> # xfs_info /data1/
> meta-data=3D/dev/sda4=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = isize=3D256=C2=A0 =C2=A0 agcount=3D4, agsize=3D142272384

4 AGs
Yes.=C2=A0

> icount =3D 220619904
> ifree =3D 26202919

And 220 million inodes. There's your problem - that's an aver= age
of 55 million inodes per AGI btree assuming you are using inode64.
If you are using inode32, then the inodes will be in 2 btrees, or
maybe even only one.
=C2=A0
You are right, a= ll inodes stay on one AG.

BTW, why i allocate 4 AG= s, and all inodes stay in one AG for inode32?, sorry as I am not familiar w= ith xfs currently.
=C2=A0

Anyway you look at it, searching btrees with tens of millions of
entries is going to consume a *lot* of CPU time. So, really, the
state your fs is in is probably unfixable without mkfs. And really,
that's probably pushing the boundaries of what xfsdump and
xfs-restore can support - it's going to take a long tiem to dump and restore that data....
=C2=A0
=C2=A0Thanks re= asonable.



With that many inodes, I'd be considering moving to 32 or 64 AGs to
keep the btree size down to a more manageable size. The free inode=C2=A0
btree would also help, but, really, 220M inodes in a 2TB filesystem
is really pushing the boundaries of sanity.....
=C2=A0=
So the better inodes size in one AG is about 5M, is there any do= cuments about these options I can learn more?

I wi= ll spend more time to learn how to use xfs, and the internal of xfs, and tr= y to contribute code.

Thanks for your help.



Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com

_____________________________= __________________
xfs mailing list
xfs@oss.sgi.com
http:= //oss.sgi.com/mailman/listinfo/xfs

--089e0112c0b08270ac050171af03-- From bfoster@redhat.com Mon Aug 25 09:20:43 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 575777F4E for ; Mon, 25 Aug 2014 09:20:43 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 45B6A304059 for ; Mon, 25 Aug 2014 07:20:39 -0700 (PDT) X-ASG-Debug-ID: 1408976435-04cb6c54fe53c380001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id M0eQ4glXtkaS3Zsh (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 25 Aug 2014 07:20:35 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7PEKRYV008681 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 25 Aug 2014 10:20:27 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7PEKQv2009765; Mon, 25 Aug 2014 10:20:26 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id B67C512577F; Mon, 25 Aug 2014 10:20:25 -0400 (EDT) Date: Mon, 25 Aug 2014 10:20:25 -0400 From: Brian Foster To: Alex Lyakas Cc: xfs@oss.sgi.com, Dave Chinner Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error Message-ID: <20140825142025.GA10135@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408976435 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Aug 24, 2014 at 12:20:20PM +0300, Alex Lyakas wrote: > Hi Brian, > > On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster wrote: > > XFS log recovery builds up an xlog_recover object as it passes through > > the log operations on the physical log. These structures are managed via > > a hash table and are allocated when a new transaction is encountered and > > freed once a commit operation for the transaction is encountered. > > > > This state machine for active transactions is implemented by a > > combination of xlog_do_recovery_pass(), which walks through the log > > buffers and xlog_recover_process_data() which processes log operations > > within each buffer. The latter function decides whether to allocate a > > new xlog_recover, add to it or commit and ultimately free it. If an > > error occurs at any point during the lifecycle of a particular > > xlog_recover, xlog_recover_process_data() frees the object and returns > > an error. > > > > xlog_recover_commit_trans() handles the final processing of the > > transaction. It submits whatever I/O is required for the transaction and > > frees xlog_recover object along with the transaction items it tracks. If > > an error occurs at the final stages of the commit operation, such as I/O > > failure, both xlog_recover_commit_trans() and > > xlog_recover_process_data() attempt to free the trans object. > > > > Modify xlog_recover_commit_trans() to only free the trans object on > > successful completion of the trans, including any I/O errors that might > > occur when recovering the log. > > > > Signed-off-by: Brian Foster > > --- > > > > Hi all, > > > > I found that the recent buffer I/O rework fixes didn't address the crash > > reproduced by the dm-flakey/log recovery test case I posted recently. I > > tracked the crash down to this, which allows the test to pass. This > > addresses the crash I saw when running the reproducer manually with the > > metadump that Alex posted as well. > > > > FWIW, I also went back and tested the xfs_buf_iowait() experiment in > > both scenarios (Alex's metadump and xfstests test) and they all > > reproduce the same crash for me. I think that either I'm still not > > reproducing the original problem, something else might have contaminated > > the original xfs_buf_iowait() test to give a false positive, or > > something else entirely is going on. > > > > Alex, > > > > If you have a chance, I think it might be interesting to see whether you > > reproduce any problems with this patch. It looks like this is a > > regression introduced by: > > > > 2a84108f xfs: free the list of recovery items on error > > > > ... but I have no idea if that's in whatever kernel you're running. > I am running kernel 3.8.13 with some changes (published at > https://github.com/zadarastorage/zadara-xfs-pushback), but this > problem also happens on pristine 3.8.13 from > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, > branch linux-stable-3.8.y. > > I do not have commit 2a84108f in this kernel. It was introduced in 3.14. > I applied your patch to 3.8.13, but it doesn't fix the issue. Same > problem happens when testing scenario that I described in > http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. > Ok, thanks. Yeah, I don't see the double free regression in the 3.8.13 stable branch. I went back to that kernel to try and confirm some things. I do reproduce the problem with your metadump as well as the test case I put together. I tested Dave's buf hold across sync I/O patch and that does indeed prevent the problem. For whatever reason, neither the test case nor your metadump reproduce the same problem on latest kernels. Instead, they reproduce this double free regression. I suspect this is what you ran into when you reproduced on a more recent kernel. If you'd like, feel free to try and verify that by running your reproducer again on a recent kernel with this patch and see if you can still reproduce a crash as with the 3.8.13 kernel. Brian > Thanks, > Alex. > > > > > Brian > > > > fs/xfs/xfs_log_recover.c | 11 ++++++++--- > > 1 file changed, 8 insertions(+), 3 deletions(-) > > > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > > index 176c4b3..daca9a6 100644 > > --- a/fs/xfs/xfs_log_recover.c > > +++ b/fs/xfs/xfs_log_recover.c > > @@ -3528,10 +3528,15 @@ out: > > if (!list_empty(&done_list)) > > list_splice_init(&done_list, &trans->r_itemq); > > > > - xlog_recover_free_trans(trans); > > - > > error2 = xfs_buf_delwri_submit(&buffer_list); > > - return error ? error : error2; > > + > > + if (!error) > > + error = error2; > > + /* caller frees trans on error */ > > + if (!error) > > + xlog_recover_free_trans(trans); > > + > > + return error; > > } > > > > STATIC int > > -- > > 1.8.3.1 > > From bfoster@redhat.com Mon Aug 25 12:37:41 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7BEC87F4E for ; Mon, 25 Aug 2014 12:37:41 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0C1EBAC001 for ; Mon, 25 Aug 2014 10:37:37 -0700 (PDT) X-ASG-Debug-ID: 1408988252-04cbb054867d5bd0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id iuYADwJBSNbHACSa (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 25 Aug 2014 10:37:34 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7PHbWnR006151 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 25 Aug 2014 13:37:32 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7PHbWjH013986 for ; Mon, 25 Aug 2014 13:37:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id F13BD12577F; Mon, 25 Aug 2014 13:37:30 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH] xfs: trim eofblocks before collapse range Date: Mon, 25 Aug 2014 13:37:30 -0400 X-ASG-Orig-Subj: [PATCH] xfs: trim eofblocks before collapse range Message-Id: <1408988250-17772-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408988253 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 xfs_collapse_file_space() currently writes back the entire file undergoing collapse range to settle things down for the extent shift algorithm. While this prevents changes to the extent list during the collapse operation, the writeback itself is not enough to prevent unnecessary collapse failures. The current shift algorithm uses the extent index to iterate the in-core extent list. If a post-eof delalloc extent persists after the writeback (e.g., a prior zero range op where the end of the range aligns with eof can separate the post-eof blocks such that they are not written back and converted), xfs_bmap_shift_extents() becomes confused over the encoded br_startblock value and fails the collapse. As with the full writeback, this is a temporary fix until the algorithm is improved to cope with a volatile extent list and avoid attempts to shift post-eof extents. Signed-off-by: Brian Foster --- Hi all, This addresses the other fsx failure I've observed related to collapse range. It should also be addressed by reworking the algorithm as discussed in Dave's full file writeback patch. This patch applies on top of that and I think this is more suitable for a near-term -rc drop. Brian fs/xfs/xfs_bmap_util.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 76b6a29..1707980 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1471,8 +1471,10 @@ xfs_collapse_file_space( shift_fsb = XFS_B_TO_FSB(mp, len); /* - * writeback the entire file to prevent concurrent writeback of ranges - * outside the collapsing region from changing the extent list. + * Writeback the entire file and force remove any post-eof blocks. The + * writeback prevents changes to the extent list via concurrent + * writeback and the eofblocks trim prevents the extent shift algorithm + * from running into a post-eof delalloc extent. * * XXX: This is a temporary fix until the extent shift loop below is * converted to use offsets and lookups within the ILOCK rather than @@ -1482,6 +1484,11 @@ xfs_collapse_file_space( error = filemap_write_and_wait(VFS_I(ip)->i_mapping); if (error) return error; + if (xfs_can_free_eofblocks(ip, true)) { + error = xfs_free_eofblocks(mp, ip, false); + if (error) + return error; + } error = xfs_free_file_space(ip, offset, len); if (error) -- 1.8.3.1 From bfoster@redhat.com Mon Aug 25 12:40:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id BE2E67F4E for ; Mon, 25 Aug 2014 12:40:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id AC1A68F8052 for ; Mon, 25 Aug 2014 10:40:23 -0700 (PDT) X-ASG-Debug-ID: 1408988422-04cbb054877d5f60001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 9E52tWnSM8LYdA7o (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 25 Aug 2014 10:40:22 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7PHeLLf011354 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 25 Aug 2014 13:40:21 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7PHeLtr003595 for ; Mon, 25 Aug 2014 13:40:21 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 65DAD12577F; Mon, 25 Aug 2014 13:40:20 -0400 (EDT) Date: Mon, 25 Aug 2014 13:40:20 -0400 From: Brian Foster To: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: trim eofblocks before collapse range Message-ID: <20140825174020.GA17813@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: trim eofblocks before collapse range References: <1408988250-17772-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408988250-17772-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1408988422 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Mon, Aug 25, 2014 at 01:37:30PM -0400, Brian Foster wrote: > xfs_collapse_file_space() currently writes back the entire file > undergoing collapse range to settle things down for the extent shift > algorithm. While this prevents changes to the extent list during the > collapse operation, the writeback itself is not enough to prevent > unnecessary collapse failures. > > The current shift algorithm uses the extent index to iterate the in-core > extent list. If a post-eof delalloc extent persists after the writeback > (e.g., a prior zero range op where the end of the range aligns with eof > can separate the post-eof blocks such that they are not written back and > converted), xfs_bmap_shift_extents() becomes confused over the encoded > br_startblock value and fails the collapse. > > As with the full writeback, this is a temporary fix until the algorithm > is improved to cope with a volatile extent list and avoid attempts to > shift post-eof extents. > > Signed-off-by: Brian Foster > --- > > Hi all, > > This addresses the other fsx failure I've observed related to collapse > range. It should also be addressed by reworking the algorithm as > discussed in Dave's full file writeback patch. This patch applies on top > of that and I think this is more suitable for a near-term -rc drop. > > Brian > Also, appended is a quick reproducer for the fsx sequence that leads to the failure. Brian ---8<--- #!/bin/sh FILE=$1 rm -f $FILE touch $FILE # create preallocation xfs_io -c "pwrite 0 32k" $FILE xfs_io -c "pwrite 32k 32k" $FILE xfs_io -c "pwrite 64k 32k" $FILE # 160k, dangling post-eof extent xfs_io -c "pwrite 96k 64k" $FILE xfs_io -c "zero 156k 4k" $FILE # create more extents xfs_io -c fsync $FILE for i in $(seq 0 8192 151152) do xfs_io -c "fpunch $i 4k" $FILE done # boom! xfs_io -c "fcollapse 0 4k" $FILE --- > fs/xfs/xfs_bmap_util.c | 11 +++++++++-- > 1 file changed, 9 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c > index 76b6a29..1707980 100644 > --- a/fs/xfs/xfs_bmap_util.c > +++ b/fs/xfs/xfs_bmap_util.c > @@ -1471,8 +1471,10 @@ xfs_collapse_file_space( > shift_fsb = XFS_B_TO_FSB(mp, len); > > /* > - * writeback the entire file to prevent concurrent writeback of ranges > - * outside the collapsing region from changing the extent list. > + * Writeback the entire file and force remove any post-eof blocks. The > + * writeback prevents changes to the extent list via concurrent > + * writeback and the eofblocks trim prevents the extent shift algorithm > + * from running into a post-eof delalloc extent. > * > * XXX: This is a temporary fix until the extent shift loop below is > * converted to use offsets and lookups within the ILOCK rather than > @@ -1482,6 +1484,11 @@ xfs_collapse_file_space( > error = filemap_write_and_wait(VFS_I(ip)->i_mapping); > if (error) > return error; > + if (xfs_can_free_eofblocks(ip, true)) { > + error = xfs_free_eofblocks(mp, ip, false); > + if (error) > + return error; > + } > > error = xfs_free_file_space(ip, offset, len); > if (error) > -- > 1.8.3.1 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From inv@mexicocalendario2014.info Mon Aug 25 13:03:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_MESSAGE autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9D4677F50 for ; Mon, 25 Aug 2014 13:03:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7CD818F804B for ; Mon, 25 Aug 2014 11:03:08 -0700 (PDT) X-ASG-Debug-ID: 1408989786-04cbb054857d74f0001-NocioJ Received: from mail2.mexicocalendario2014.info (mail2.mexicocalendario2014.info [81.7.3.198]) by cuda.sgi.com with ESMTP id KtQWnBTRmP6DYoUO for ; Mon, 25 Aug 2014 11:03:06 -0700 (PDT) X-Barracuda-Envelope-From: inv@mexicocalendario2014.info X-Barracuda-Apparent-Source-IP: 81.7.3.198 Received: from 81-7-3-140 (81.7.3.140) by mail2.mexicocalendario2014.info id hvdt5i0our0k for ; Mon, 25 Aug 2014 13:03:04 -0500 (envelope-from ) mod: fd25f39a-7480-48bc-843f-89413644a548 Message-ID: <76a619a72a86f530df4887570017c709@mexicocalendario2014.info> From: "Lic. Estefania Mena" To: Subject: =?utf-8?Q?Administre_su_Inventario_/_Cierre_de_Inscripciones?= Date: Mon, 25 Aug 2014 13:03:04 -0500 X-ASG-Orig-Subj: =?utf-8?Q?Administre_su_Inventario_/_Cierre_de_Inscripciones?= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=SPLITOR00A_001_294381983D" X-Barracuda-Connect: mail2.mexicocalendario2014.info[81.7.3.198] X-Barracuda-Start-Time: 1408989786 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8820 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 HTML_MESSAGE BODY: HTML included in message This is a multi-part message in MIME format. ------=SPLITOR00A_001_294381983D Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable =20 Las 7 Reglas de oro del control de Inventarios Guadalajara, JAL 10 de septiembre 2014 M=C3=A9xico, D.F. 04 de septiembre 2014 Monterrey, NL 12 de septiembre 2014 =C2=A1No pierda la oportunidad de ser un factor de crecimiento y = desarrollo desde su posici=C3=B3n en la organizaci=C3=B3n! - Alta confiabilidad operativa y financiera de sus registros=2E - Disposici=C3=B3n y prevenci=C3=B3n de obsoletos=2E - Elaboraci=C3=B3n de su propio plan de trabajo=2E Para obtener el contenido completo de este programa responda este correo = con la palabra info + Nombre + Tel=C3=A9fono + Sede (GDL, D.F. =C3=B3 MTY) = y se lo enviaremos a la brevedad=2E Mayores informes e inscripci=C3=B3n, - Solic=C3=ADtala ya L=C3=ADnea directa Guadalajara: 01 331 809 8213 L=C3=ADnea directa D.F. y Monterrey: 01 800 212 0660 Para YA no recibir estos boletines a: xfs@oss.sgi.com simplemente = env=C3=ADe un correo con asunto (noinfo) ------=SPLITOR00A_001_294381983D Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

 

Las 7=20 Reglas de oro del control de=20 Inventarios
Guadalajara, JAL 10 de septiembre=20 2014
M=C3=A9xico, D.F. 04 de septiembre=20 2014
Monterrey, NL 12 de septiembre=20 2014

=C2=A1No pierda la oportunidad de ser un factor = de=20 crecimiento y desarrollo desde su posici=C3=B3n en la=20 = organizaci=C3=B3n!

- Alta confiabilidad operativa y financiera de = sus=20 registros.
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Para YA no=20 recibir estos boletines a: xfs@oss.sgi.com simplemente = env=C3=ADe un=20 correo con asunto=20 = (noinfo)

 

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Aug 2014 07:57:00 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XM2j4-0008OY-0a; Tue, 26 Aug 2014 08:26:58 +1000 Date: Tue, 26 Aug 2014 08:26:57 +1000 From: Dave Chinner To: Zhang Qiang Cc: xfs@oss.sgi.com Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140825222657.GF20518@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409005622 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8827 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Mon, Aug 25, 2014 at 06:31:10PM +0800, Zhang Qiang wrote: > 2014-08-25 17:08 GMT+08:00 Dave Chinner : > > > On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wrote: > > > I have checked icount and ifree, but I found there are about 11.8 percent > > > free, so the free inode should not be too few. > > > > > > Here's the detail log, any new clue? > > > > > > # mount /dev/sda4 /data1/ > > > # xfs_info /data1/ > > > meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 > > > > 4 AGs > > > Yes. > > > > > > icount = 220619904 > > > ifree = 26202919 > > > > And 220 million inodes. There's your problem - that's an average > > of 55 million inodes per AGI btree assuming you are using inode64. > > If you are using inode32, then the inodes will be in 2 btrees, or > > maybe even only one. > > > > You are right, all inodes stay on one AG. > > BTW, why i allocate 4 AGs, and all inodes stay in one AG for inode32?, Because the top addresses in the 2nd AG go over 32 bits, hence only AG 0 can be used for inodes. Changing to inode64 will give you some relief, but any time allocation occurs in AG0 is will be slow. i.e. you'll be trading always slow for "unpredictably slow". > > With that many inodes, I'd be considering moving to 32 or 64 AGs to > > keep the btree size down to a more manageable size. The free inode > > btree would also help, but, really, 220M inodes in a 2TB filesystem > > is really pushing the boundaries of sanity..... > > > > So the better inodes size in one AG is about 5M, Not necessarily. But for your storage it's almost certainly going to minimise the problem you are seeing. > is there any documents > about these options I can learn more? http://xfs.org/index.php/XFS_Papers_and_Documentation Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Mon Aug 25 17:34:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C9E997F4E for ; Mon, 25 Aug 2014 17:34:40 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B5AAC8F804B for ; Mon, 25 Aug 2014 15:34:40 -0700 (PDT) X-ASG-Debug-ID: 1409006078-04cb6c550055db00001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id hwJVf01hvTumwDXr for ; Mon, 25 Aug 2014 15:34:38 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmQTAGq5+1N5LDJ8PGdsb2JhbABagw2BKoczp3wBAQEBBqRuAYEdFwUBAQEBODaEBAEFOhwjEAgDDgoJJQ8FJQMHGhOIQb9nFxiFZIlQB4RMBZxImH0rL4EGJIElAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 08:04:31 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XM2qN-0008Po-3X; Tue, 26 Aug 2014 08:34:31 +1000 Date: Tue, 26 Aug 2014 08:34:31 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH] xfs: trim eofblocks before collapse range Message-ID: <20140825223431.GG20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: trim eofblocks before collapse range References: <1408988250-17772-1-git-send-email-bfoster@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408988250-17772-1-git-send-email-bfoster@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409006078 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8826 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 25, 2014 at 01:37:30PM -0400, Brian Foster wrote: > xfs_collapse_file_space() currently writes back the entire file > undergoing collapse range to settle things down for the extent shift > algorithm. While this prevents changes to the extent list during the > collapse operation, the writeback itself is not enough to prevent > unnecessary collapse failures. > > The current shift algorithm uses the extent index to iterate the in-core > extent list. If a post-eof delalloc extent persists after the writeback > (e.g., a prior zero range op where the end of the range aligns with eof > can separate the post-eof blocks such that they are not written back and > converted), xfs_bmap_shift_extents() becomes confused over the encoded > br_startblock value and fails the collapse. > > As with the full writeback, this is a temporary fix until the algorithm > is improved to cope with a volatile extent list and avoid attempts to > shift post-eof extents. > > Signed-off-by: Brian Foster > --- > > Hi all, > > This addresses the other fsx failure I've observed related to collapse > range. It should also be addressed by reworking the algorithm as > discussed in Dave's full file writeback patch. This patch applies on top > of that and I think this is more suitable for a near-term -rc drop. Added to my set of patches for testing. Cheers, Dave. -- Dave Chinner david@fromorbit.com From greg.freemyer@gmail.com Mon Aug 25 17:47:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 61A407F4E for ; Mon, 25 Aug 2014 17:47:17 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 31880304066 for ; Mon, 25 Aug 2014 15:47:17 -0700 (PDT) X-ASG-Debug-ID: 1409006831-04bdf0109a4ecc70001-NocioJ Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by cuda.sgi.com with ESMTP id RqFBJXMiwD6VUy49 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Mon, 25 Aug 2014 15:47:12 -0700 (PDT) X-Barracuda-Envelope-From: greg.freemyer@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.172 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.172] Received: by mail-wi0-f172.google.com with SMTP id n3so3285262wiv.11 for ; Mon, 25 Aug 2014 15:47:11 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.172] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.172] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=M/2sj9S9qg/WfH28NJfx+iVCQWe3NaKlhp2oHDh4+w0=; b=R9/HsT2YAjElaINGw3zFrpuP5o2rwqZ4Z+ee5wPmHWyWoCwtO1NoMHUmfF60vt+MTP 3z8O66FZpG9PiH+GZoa4K/FkOJpNrpqXtKq/Hy4cIbNogynYzRHkfP9FkqHn9xwI13Qk RJhgGXGxaSMFzuft72NbmHa26HhDbYdO/+uPzIlXgMvIzUeQwQbqwus0lKs7s13KdFU8 KtPUfPkehwNBLbeAMn74Uv6PakEQDkPGzieoH9wbFpPl+NCp31dm0EezrXMF1PdZH68D Qegl+VHLwHE6yk27ZvBumQQQRrMxjmJLL/n3DpMUluQTg96Cbdpgd1VVS8OJeuBh6vIb 7ueA== X-Received: by 10.180.88.167 with SMTP id bh7mr18557135wib.12.1409006831233; Mon, 25 Aug 2014 15:47:11 -0700 (PDT) MIME-Version: 1.0 Received: by 10.180.10.73 with HTTP; Mon, 25 Aug 2014 15:46:31 -0700 (PDT) In-Reply-To: <20140825222657.GF20518@dastard> References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> <20140825222657.GF20518@dastard> From: Greg Freemyer Date: Mon, 25 Aug 2014 18:46:31 -0400 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system To: Dave Chinner X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system Cc: Zhang Qiang , xfs-oss Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-wi0-f172.google.com[209.85.212.172] X-Barracuda-Start-Time: 1409006832 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085, DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8827 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.10 BSF_SC0_SA085 Custom Rule SA085 On Mon, Aug 25, 2014 at 6:26 PM, Dave Chinner wrote: > On Mon, Aug 25, 2014 at 06:31:10PM +0800, Zhang Qiang wrote: >> 2014-08-25 17:08 GMT+08:00 Dave Chinner : >> >> > On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wrote: >> > > I have checked icount and ifree, but I found there are about 11.8 percent >> > > free, so the free inode should not be too few. >> > > >> > > Here's the detail log, any new clue? >> > > >> > > # mount /dev/sda4 /data1/ >> > > # xfs_info /data1/ >> > > meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 >> > >> > 4 AGs >> > >> Yes. >> >> > >> > > icount = 220619904 >> > > ifree = 26202919 >> > >> > And 220 million inodes. There's your problem - that's an average >> > of 55 million inodes per AGI btree assuming you are using inode64. >> > If you are using inode32, then the inodes will be in 2 btrees, or >> > maybe even only one. >> > >> >> You are right, all inodes stay on one AG. >> >> BTW, why i allocate 4 AGs, and all inodes stay in one AG for inode32?, > > Because the top addresses in the 2nd AG go over 32 bits, hence only > AG 0 can be used for inodes. Changing to inode64 will give you some > relief, but any time allocation occurs in AG0 is will be slow. i.e. > you'll be trading always slow for "unpredictably slow". > >> > With that many inodes, I'd be considering moving to 32 or 64 AGs to >> > keep the btree size down to a more manageable size. The free inode >> >> btree would also help, but, really, 220M inodes in a 2TB filesystem >> > is really pushing the boundaries of sanity..... >> > >> >> So the better inodes size in one AG is about 5M, > > Not necessarily. But for your storage it's almost certainly going to > minimise the problem you are seeing. > >> is there any documents >> about these options I can learn more? > > http://xfs.org/index.php/XFS_Papers_and_Documentation Given the apparently huge number of small files would he likely see a big performance increase if he replaced that 2TB or rust with SSD. 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Thank you From dave@fromorbit.com Mon Aug 25 20:21:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 2BC6F7F4E for ; Mon, 25 Aug 2014 20:21:52 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AF210AC002 for ; Mon, 25 Aug 2014 18:21:51 -0700 (PDT) X-ASG-Debug-ID: 1409016108-04cb6c54fd565410002-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 5McUWAQnYbeEExAm for ; Mon, 25 Aug 2014 18:21:50 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgwXACbg+1N5LDJ8PGdsb2JhbABZgw2IXadtAQEBAQamCRcFAQEBATgZHYRgO4ECAweIbpphpGaFfIlthDYFqFmKQoIqK4J+AQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 10:51:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XM5SC-0000K9-53 for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XM5SC-0002U9-4J for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [RFC, PATCH 0/4] xfs: clean up xlog_recover_process_data Date: Tue, 26 Aug 2014 11:21:37 +1000 X-ASG-Orig-Subj: [RFC, PATCH 0/4] xfs: clean up xlog_recover_process_data Message-Id: <1409016101-9511-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409016109 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8833 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, The log recovery use-after-free that Brian posted a patch for has had several previous attempts sent and none have completed review. So let's put this one to bed for good. This patch set addresses the previous review feedback for fixing this problem. It factors xlog_recover_process_data() to make it cleaner and isolate the context of the transaction recvoery structure that is causing problems. It fixes a leak of the structure in an error condition that I noticed while factoring, as well as the double free that Brian and others have identified and tried to fix in the past. It then re-arranges the recovery item management code to put it all in one place, rather than in 3 separate parts of the file separated by several hundred lines of unrelated code. Comments? -Dave. From dave@fromorbit.com Mon Aug 25 20:21:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DB4C77F4E for ; Mon, 25 Aug 2014 20:21:53 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id C98998F8033 for ; Mon, 25 Aug 2014 18:21:50 -0700 (PDT) X-ASG-Debug-ID: 1409016108-04cb6c54fd565410001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id eMJmQGTW3wUwj2Mc for ; Mon, 25 Aug 2014 18:21:48 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlsTACbg+1N5LDJ8PGdsb2JhbABZgw2BKoczp20BAQEBBqYJFwUBAQEBODaEBAEFJy8zCBgxOQMHFBmIQb8wF4V8iW2ENgWoWYxsKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 10:51:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XM5SC-0000KB-6J for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XM5SC-0002UI-5b for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/4] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Date: Tue, 26 Aug 2014 11:21:39 +1000 X-ASG-Orig-Subj: [PATCH 2/4] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Message-Id: <1409016101-9511-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409016101-9511-1-git-send-email-david@fromorbit.com> References: <1409016101-9511-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409016108 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8833 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner It aborts recovery without freeing the current trans structure that we are decoding. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 1970732f..460cf98 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3587,8 +3587,9 @@ xlog_recovery_process_ophdr( /* unexpected flag values */ case XLOG_UNMOUNT_TRANS: xfs_warn(log->l_mp, "%s: Unmount LR", __func__); - error = 0; - break; + xlog_recover_free_trans(trans); + return 0; + case XLOG_START_TRANS: xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); ASSERT(0); -- 2.0.0 From dave@fromorbit.com Mon Aug 25 20:21:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 021247F50 for ; Mon, 25 Aug 2014 20:21:54 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 76DD0AC001 for ; Mon, 25 Aug 2014 18:21:53 -0700 (PDT) X-ASG-Debug-ID: 1409016108-04cb6c54fd565410003-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id sWAtmPRbRHSwvBex for ; Mon, 25 Aug 2014 18:21:51 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlsTACbg+1N5LDJ8PGdsb2JhbABZgw2BKoczp20BAQEBBqYJFwUBAQEBODaEBAEFJy8zCBgxOQMHFBmIQb9HhXyOIwWGEaJIimIcgW4rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 10:51:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XM5SC-0000KA-5t for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XM5SC-0002UC-4o for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Date: Tue, 26 Aug 2014 11:21:38 +1000 X-ASG-Orig-Subj: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-Id: <1409016101-9511-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409016101-9511-1-git-send-email-david@fromorbit.com> References: <1409016101-9511-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409016111 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8833 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Clean up xlog_recover_process_data() structure in preparation for fixing the allocationa nd freeing context of the transaction being recovered. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 151 ++++++++++++++++++++++++++--------------------- 1 file changed, 84 insertions(+), 67 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 01becbb..1970732f 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3531,12 +3531,78 @@ out: } STATIC int -xlog_recover_unmount_trans( - struct xlog *log) +xlog_recovery_process_ophdr( + struct xlog *log, + struct hlist_head rhash[], + struct xlog_rec_header *rhead, + struct xlog_op_header *ohead, + xfs_caddr_t dp, + xfs_caddr_t lp, + int pass) { - /* Do nothing now */ - xfs_warn(log->l_mp, "%s: Unmount LR", __func__); - return 0; + struct xlog_recover *trans; + xlog_tid_t tid; + int error; + unsigned long hash; + uint flags; + unsigned int hlen; + + hlen = be32_to_cpu(ohead->oh_len); + tid = be32_to_cpu(ohead->oh_tid); + hash = XLOG_RHASH(tid); + trans = xlog_recover_find_tid(&rhash[hash], tid); + if (!trans) { + /* add new tid if this is a new transaction */ + if (ohead->oh_flags & XLOG_START_TRANS) { + xlog_recover_new_tid(&rhash[hash], tid, + be64_to_cpu(rhead->h_lsn)); + } + return 0; + } + + error = -EIO; + if (dp + hlen > lp) { + xfs_warn(log->l_mp, "%s: bad length 0x%x", __func__, hlen); + WARN_ON(1); + goto out_free; + } + + flags = ohead->oh_flags & ~XLOG_END_TRANS; + if (flags & XLOG_WAS_CONT_TRANS) + flags &= ~XLOG_CONTINUE_TRANS; + + switch (flags) { + /* expected flag values */ + case 0: + case XLOG_CONTINUE_TRANS: + error = xlog_recover_add_to_trans(log, trans, dp, hlen); + break; + case XLOG_WAS_CONT_TRANS: + error = xlog_recover_add_to_cont_trans(log, trans, dp, hlen); + break; + case XLOG_COMMIT_TRANS: + error = xlog_recover_commit_trans(log, trans, pass); + break; + + /* unexpected flag values */ + case XLOG_UNMOUNT_TRANS: + xfs_warn(log->l_mp, "%s: Unmount LR", __func__); + error = 0; + break; + case XLOG_START_TRANS: + xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); + ASSERT(0); + break; + default: + xfs_warn(log->l_mp, "%s: bad flag 0x%x", __func__, flags); + ASSERT(0); + break; + } + +out_free: + if (error) + xlog_recover_free_trans(trans); + return error; } /* @@ -3556,14 +3622,10 @@ xlog_recover_process_data( xfs_caddr_t dp, int pass) { + struct xlog_op_header *ohead; xfs_caddr_t lp; int num_logops; - xlog_op_header_t *ohead; - xlog_recover_t *trans; - xlog_tid_t tid; int error; - unsigned long hash; - uint flags; lp = dp + be32_to_cpu(rhead->h_len); num_logops = be32_to_cpu(rhead->h_num_logops); @@ -3573,69 +3635,24 @@ xlog_recover_process_data( return -EIO; while ((dp < lp) && num_logops) { - ASSERT(dp + sizeof(xlog_op_header_t) <= lp); - ohead = (xlog_op_header_t *)dp; - dp += sizeof(xlog_op_header_t); + ASSERT(dp + sizeof(struct xlog_op_header) <= lp); + + ohead = (struct xlog_op_header *)dp; + dp += sizeof(*ohead); + if (ohead->oh_clientid != XFS_TRANSACTION && ohead->oh_clientid != XFS_LOG) { xfs_warn(log->l_mp, "%s: bad clientid 0x%x", - __func__, ohead->oh_clientid); + __func__, ohead->oh_clientid); ASSERT(0); return -EIO; } - tid = be32_to_cpu(ohead->oh_tid); - hash = XLOG_RHASH(tid); - trans = xlog_recover_find_tid(&rhash[hash], tid); - if (trans == NULL) { /* not found; add new tid */ - if (ohead->oh_flags & XLOG_START_TRANS) - xlog_recover_new_tid(&rhash[hash], tid, - be64_to_cpu(rhead->h_lsn)); - } else { - if (dp + be32_to_cpu(ohead->oh_len) > lp) { - xfs_warn(log->l_mp, "%s: bad length 0x%x", - __func__, be32_to_cpu(ohead->oh_len)); - WARN_ON(1); - return -EIO; - } - flags = ohead->oh_flags & ~XLOG_END_TRANS; - if (flags & XLOG_WAS_CONT_TRANS) - flags &= ~XLOG_CONTINUE_TRANS; - switch (flags) { - case XLOG_COMMIT_TRANS: - error = xlog_recover_commit_trans(log, - trans, pass); - break; - case XLOG_UNMOUNT_TRANS: - error = xlog_recover_unmount_trans(log); - break; - case XLOG_WAS_CONT_TRANS: - error = xlog_recover_add_to_cont_trans(log, - trans, dp, - be32_to_cpu(ohead->oh_len)); - break; - case XLOG_START_TRANS: - xfs_warn(log->l_mp, "%s: bad transaction", - __func__); - ASSERT(0); - error = -EIO; - break; - case 0: - case XLOG_CONTINUE_TRANS: - error = xlog_recover_add_to_trans(log, trans, - dp, be32_to_cpu(ohead->oh_len)); - break; - default: - xfs_warn(log->l_mp, "%s: bad flag 0x%x", - __func__, flags); - ASSERT(0); - error = -EIO; - break; - } - if (error) { - xlog_recover_free_trans(trans); - return error; - } - } + + error = xlog_recovery_process_ophdr(log, rhash, rhead, ohead, + dp, lp, pass); + if (error) + return error; + dp += be32_to_cpu(ohead->oh_len); num_logops--; } -- 2.0.0 From dave@fromorbit.com Mon Aug 25 20:21:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F24417F54 for ; Mon, 25 Aug 2014 20:21:54 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E0DDC304053 for ; Mon, 25 Aug 2014 18:21:54 -0700 (PDT) X-ASG-Debug-ID: 1409016111-04cbb054887efbf0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id zmHfAPggLaezdGOf for ; Mon, 25 Aug 2014 18:21:52 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlsTACbg+1N5LDJ8PGdsb2JhbABZgw2BKoczp20BAQEBBqYJFwUBAQEBODaEBAEFJy8zCBgxOQMHFBmIQb9HhXyOIwWGEa0oHoFuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 10:51:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XM5SC-0000KD-75 for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XM5SC-0002US-6S for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 4/4] xfs: reorganise transaction recovery item code Date: Tue, 26 Aug 2014 11:21:41 +1000 X-ASG-Orig-Subj: [PATCH 4/4] xfs: reorganise transaction recovery item code Message-Id: <1409016101-9511-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409016101-9511-1-git-send-email-david@fromorbit.com> References: <1409016101-9511-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409016111 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8833 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner The code for managing transactions anf the items for recovery is spread across 3 different locations in the file. Move them all together so that it is easy to read the code without needing to jump long distances in the file. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 358 +++++++++++++++++++++++------------------------ 1 file changed, 179 insertions(+), 179 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 23895d5..b36d96a 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1441,160 +1441,6 @@ xlog_clear_stale_blocks( ****************************************************************************** */ -STATIC xlog_recover_t * -xlog_recover_find_tid( - struct hlist_head *head, - xlog_tid_t tid) -{ - xlog_recover_t *trans; - - hlist_for_each_entry(trans, head, r_list) { - if (trans->r_log_tid == tid) - return trans; - } - return NULL; -} - -STATIC void -xlog_recover_new_tid( - struct hlist_head *head, - xlog_tid_t tid, - xfs_lsn_t lsn) -{ - xlog_recover_t *trans; - - trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP); - trans->r_log_tid = tid; - trans->r_lsn = lsn; - INIT_LIST_HEAD(&trans->r_itemq); - - INIT_HLIST_NODE(&trans->r_list); - hlist_add_head(&trans->r_list, head); -} - -STATIC void -xlog_recover_add_item( - struct list_head *head) -{ - xlog_recover_item_t *item; - - item = kmem_zalloc(sizeof(xlog_recover_item_t), KM_SLEEP); - INIT_LIST_HEAD(&item->ri_list); - list_add_tail(&item->ri_list, head); -} - -STATIC int -xlog_recover_add_to_cont_trans( - struct xlog *log, - struct xlog_recover *trans, - xfs_caddr_t dp, - int len) -{ - xlog_recover_item_t *item; - xfs_caddr_t ptr, old_ptr; - int old_len; - - if (list_empty(&trans->r_itemq)) { - /* finish copying rest of trans header */ - xlog_recover_add_item(&trans->r_itemq); - ptr = (xfs_caddr_t) &trans->r_theader + - sizeof(xfs_trans_header_t) - len; - memcpy(ptr, dp, len); /* d, s, l */ - return 0; - } - /* take the tail entry */ - item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); - - old_ptr = item->ri_buf[item->ri_cnt-1].i_addr; - old_len = item->ri_buf[item->ri_cnt-1].i_len; - - ptr = kmem_realloc(old_ptr, len+old_len, old_len, KM_SLEEP); - memcpy(&ptr[old_len], dp, len); /* d, s, l */ - item->ri_buf[item->ri_cnt-1].i_len += len; - item->ri_buf[item->ri_cnt-1].i_addr = ptr; - trace_xfs_log_recover_item_add_cont(log, trans, item, 0); - return 0; -} - -/* - * The next region to add is the start of a new region. It could be - * a whole region or it could be the first part of a new region. Because - * of this, the assumption here is that the type and size fields of all - * format structures fit into the first 32 bits of the structure. - * - * This works because all regions must be 32 bit aligned. Therefore, we - * either have both fields or we have neither field. In the case we have - * neither field, the data part of the region is zero length. We only have - * a log_op_header and can throw away the header since a new one will appear - * later. If we have at least 4 bytes, then we can determine how many regions - * will appear in the current log item. - */ -STATIC int -xlog_recover_add_to_trans( - struct xlog *log, - struct xlog_recover *trans, - xfs_caddr_t dp, - int len) -{ - xfs_inode_log_format_t *in_f; /* any will do */ - xlog_recover_item_t *item; - xfs_caddr_t ptr; - - if (!len) - return 0; - if (list_empty(&trans->r_itemq)) { - /* we need to catch log corruptions here */ - if (*(uint *)dp != XFS_TRANS_HEADER_MAGIC) { - xfs_warn(log->l_mp, "%s: bad header magic number", - __func__); - ASSERT(0); - return -EIO; - } - if (len == sizeof(xfs_trans_header_t)) - xlog_recover_add_item(&trans->r_itemq); - memcpy(&trans->r_theader, dp, len); /* d, s, l */ - return 0; - } - - ptr = kmem_alloc(len, KM_SLEEP); - memcpy(ptr, dp, len); - in_f = (xfs_inode_log_format_t *)ptr; - - /* take the tail entry */ - item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); - if (item->ri_total != 0 && - item->ri_total == item->ri_cnt) { - /* tail item is in use, get a new one */ - xlog_recover_add_item(&trans->r_itemq); - item = list_entry(trans->r_itemq.prev, - xlog_recover_item_t, ri_list); - } - - if (item->ri_total == 0) { /* first region to be added */ - if (in_f->ilf_size == 0 || - in_f->ilf_size > XLOG_MAX_REGIONS_IN_ITEM) { - xfs_warn(log->l_mp, - "bad number of regions (%d) in inode log format", - in_f->ilf_size); - ASSERT(0); - kmem_free(ptr); - return -EIO; - } - - item->ri_total = in_f->ilf_size; - item->ri_buf = - kmem_zalloc(item->ri_total * sizeof(xfs_log_iovec_t), - KM_SLEEP); - } - ASSERT(item->ri_total > item->ri_cnt); - /* Description region is ri_buf[0] */ - item->ri_buf[item->ri_cnt].i_addr = ptr; - item->ri_buf[item->ri_cnt].i_len = len; - item->ri_cnt++; - trace_xfs_log_recover_item_add(log, trans, item, 0); - return 0; -} - /* * Sort the log items in the transaction. * @@ -3250,31 +3096,6 @@ xlog_recover_do_icreate_pass2( return 0; } -/* - * Free up any resources allocated by the transaction - * - * Remember that EFIs, EFDs, and IUNLINKs are handled later. - */ -STATIC void -xlog_recover_free_trans( - struct xlog_recover *trans) -{ - xlog_recover_item_t *item, *n; - int i; - - list_for_each_entry_safe(item, n, &trans->r_itemq, ri_list) { - /* Free the regions in the item. */ - list_del(&item->ri_list); - for (i = 0; i < item->ri_cnt; i++) - kmem_free(item->ri_buf[i].i_addr); - /* Free the item itself */ - kmem_free(item->ri_buf); - kmem_free(item); - } - /* Free the transaction recover structure */ - kmem_free(trans); -} - STATIC void xlog_recover_buffer_ra_pass2( struct xlog *log, @@ -3528,6 +3349,185 @@ out: return error ? error : error2; } + +STATIC xlog_recover_t * +xlog_recover_find_tid( + struct hlist_head *head, + xlog_tid_t tid) +{ + xlog_recover_t *trans; + + hlist_for_each_entry(trans, head, r_list) { + if (trans->r_log_tid == tid) + return trans; + } + return NULL; +} + +STATIC void +xlog_recover_new_tid( + struct hlist_head *head, + xlog_tid_t tid, + xfs_lsn_t lsn) +{ + xlog_recover_t *trans; + + trans = kmem_zalloc(sizeof(xlog_recover_t), KM_SLEEP); + trans->r_log_tid = tid; + trans->r_lsn = lsn; + INIT_LIST_HEAD(&trans->r_itemq); + + INIT_HLIST_NODE(&trans->r_list); + hlist_add_head(&trans->r_list, head); +} + +STATIC void +xlog_recover_add_item( + struct list_head *head) +{ + xlog_recover_item_t *item; + + item = kmem_zalloc(sizeof(xlog_recover_item_t), KM_SLEEP); + INIT_LIST_HEAD(&item->ri_list); + list_add_tail(&item->ri_list, head); +} + +STATIC int +xlog_recover_add_to_cont_trans( + struct xlog *log, + struct xlog_recover *trans, + xfs_caddr_t dp, + int len) +{ + xlog_recover_item_t *item; + xfs_caddr_t ptr, old_ptr; + int old_len; + + if (list_empty(&trans->r_itemq)) { + /* finish copying rest of trans header */ + xlog_recover_add_item(&trans->r_itemq); + ptr = (xfs_caddr_t) &trans->r_theader + + sizeof(xfs_trans_header_t) - len; + memcpy(ptr, dp, len); + return 0; + } + /* take the tail entry */ + item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); + + old_ptr = item->ri_buf[item->ri_cnt-1].i_addr; + old_len = item->ri_buf[item->ri_cnt-1].i_len; + + ptr = kmem_realloc(old_ptr, len+old_len, old_len, KM_SLEEP); + memcpy(&ptr[old_len], dp, len); + item->ri_buf[item->ri_cnt-1].i_len += len; + item->ri_buf[item->ri_cnt-1].i_addr = ptr; + trace_xfs_log_recover_item_add_cont(log, trans, item, 0); + return 0; +} + +/* + * The next region to add is the start of a new region. It could be + * a whole region or it could be the first part of a new region. Because + * of this, the assumption here is that the type and size fields of all + * format structures fit into the first 32 bits of the structure. + * + * This works because all regions must be 32 bit aligned. Therefore, we + * either have both fields or we have neither field. In the case we have + * neither field, the data part of the region is zero length. We only have + * a log_op_header and can throw away the header since a new one will appear + * later. If we have at least 4 bytes, then we can determine how many regions + * will appear in the current log item. + */ +STATIC int +xlog_recover_add_to_trans( + struct xlog *log, + struct xlog_recover *trans, + xfs_caddr_t dp, + int len) +{ + xfs_inode_log_format_t *in_f; /* any will do */ + xlog_recover_item_t *item; + xfs_caddr_t ptr; + + if (!len) + return 0; + if (list_empty(&trans->r_itemq)) { + /* we need to catch log corruptions here */ + if (*(uint *)dp != XFS_TRANS_HEADER_MAGIC) { + xfs_warn(log->l_mp, "%s: bad header magic number", + __func__); + ASSERT(0); + return -EIO; + } + if (len == sizeof(xfs_trans_header_t)) + xlog_recover_add_item(&trans->r_itemq); + memcpy(&trans->r_theader, dp, len); + return 0; + } + + ptr = kmem_alloc(len, KM_SLEEP); + memcpy(ptr, dp, len); + in_f = (xfs_inode_log_format_t *)ptr; + + /* take the tail entry */ + item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list); + if (item->ri_total != 0 && + item->ri_total == item->ri_cnt) { + /* tail item is in use, get a new one */ + xlog_recover_add_item(&trans->r_itemq); + item = list_entry(trans->r_itemq.prev, + xlog_recover_item_t, ri_list); + } + + if (item->ri_total == 0) { /* first region to be added */ + if (in_f->ilf_size == 0 || + in_f->ilf_size > XLOG_MAX_REGIONS_IN_ITEM) { + xfs_warn(log->l_mp, + "bad number of regions (%d) in inode log format", + in_f->ilf_size); + ASSERT(0); + kmem_free(ptr); + return -EIO; + } + + item->ri_total = in_f->ilf_size; + item->ri_buf = + kmem_zalloc(item->ri_total * sizeof(xfs_log_iovec_t), + KM_SLEEP); + } + ASSERT(item->ri_total > item->ri_cnt); + /* Description region is ri_buf[0] */ + item->ri_buf[item->ri_cnt].i_addr = ptr; + item->ri_buf[item->ri_cnt].i_len = len; + item->ri_cnt++; + trace_xfs_log_recover_item_add(log, trans, item, 0); + return 0; +} +/* + * Free up any resources allocated by the transaction + * + * Remember that EFIs, EFDs, and IUNLINKs are handled later. + */ +STATIC void +xlog_recover_free_trans( + struct xlog_recover *trans) +{ + xlog_recover_item_t *item, *n; + int i; + + list_for_each_entry_safe(item, n, &trans->r_itemq, ri_list) { + /* Free the regions in the item. */ + list_del(&item->ri_list); + for (i = 0; i < item->ri_cnt; i++) + kmem_free(item->ri_buf[i].i_addr); + /* Free the item itself */ + kmem_free(item->ri_buf); + kmem_free(item); + } + /* Free the transaction recover structure */ + kmem_free(trans); +} + STATIC int xlog_recovery_process_ophdr( struct xlog *log, -- 2.0.0 From dave@fromorbit.com Mon Aug 25 20:21:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 82ECB7F54 for ; Mon, 25 Aug 2014 20:21:55 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id 71961304053 for ; Mon, 25 Aug 2014 18:21:52 -0700 (PDT) X-ASG-Debug-ID: 1409016110-04cb6c54ff565420001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id YtZnR3ewXlZvKtbN for ; Mon, 25 Aug 2014 18:21:50 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AlsTACbg+1N5LDJ8PGdsb2JhbABZgw2BKoczp20BAQEBBqYJFwUBAQEBODaEBAEFJy8zCBgxOQMHFBmIQb8wF4V8iW2ENgWoWYxsKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 10:51:46 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XM5SC-0000KC-6h for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XM5SC-0002UN-62 for xfs@oss.sgi.com; Tue, 26 Aug 2014 11:21:44 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/4] xfs: fix double free in xlog_recover_commit_trans Date: Tue, 26 Aug 2014 11:21:40 +1000 X-ASG-Orig-Subj: [PATCH 3/4] xfs: fix double free in xlog_recover_commit_trans Message-Id: <1409016101-9511-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409016101-9511-1-git-send-email-david@fromorbit.com> References: <1409016101-9511-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409016110 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 2.60 X-Barracuda-Spam-Status: No, SCORE=2.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MV0249, MARKETING_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8833 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.60 MARKETING_SUBJECT Subject contains popular marketing words 2.00 BSF_SC0_MV0249 Custom rule MV0249 From: Dave Chinner When an error occurs during buffer submission in xlog_recover_commit_trans(), we free the trans structure twice. Fix it by only freeing the structure in the caller regardless of the success or failure of the function. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_recover.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 460cf98..23895d5 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3524,8 +3524,6 @@ out: if (!list_empty(&done_list)) list_splice_init(&done_list, &trans->r_itemq); - xlog_recover_free_trans(trans); - error2 = xfs_buf_delwri_submit(&buffer_list); return error ? error : error2; } @@ -3571,6 +3569,11 @@ xlog_recovery_process_ophdr( if (flags & XLOG_WAS_CONT_TRANS) flags &= ~XLOG_CONTINUE_TRANS; + /* + * Callees must not free the trans structure. We own it, so we'll decide + * if we need to free it or not based on the operation being done and + * it's result. + */ switch (flags) { /* expected flag values */ case 0: @@ -3582,7 +3585,8 @@ xlog_recovery_process_ophdr( break; case XLOG_COMMIT_TRANS: error = xlog_recover_commit_trans(log, trans, pass); - break; + xlog_recover_free_trans(trans); + return error; /* unexpected flag values */ case XLOG_UNMOUNT_TRANS: -- 2.0.0 From david@fromorbit.com Mon Aug 25 21:38:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B64187F4E for ; Mon, 25 Aug 2014 21:38:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A4A7E304032 for ; Mon, 25 Aug 2014 19:38:01 -0700 (PDT) X-ASG-Debug-ID: 1409020678-04cb6c5500568de0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id uHKZxg9ZfQFh2v5j for ; Mon, 25 Aug 2014 19:37:59 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AicYAPPx+1N5LDJ8PGdsb2JhbABAGoMNU1evJwEBAQEGnSGHSAMCAYEcFwUBAQEBODaEBAEFOhwjEAgDGAklDwUlAwcaE4hBDja9NxiFZIkHSQeETAWVT4Z5mH0rL4EHgUgBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 12:07:58 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XM6dv-0000Ua-1k; Tue, 26 Aug 2014 12:37:55 +1000 Date: Tue, 26 Aug 2014 12:37:55 +1000 From: Dave Chinner To: Greg Freemyer Cc: Zhang Qiang , xfs-oss Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140826023754.GH20518@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> <20140825222657.GF20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409020678 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8834 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On Mon, Aug 25, 2014 at 06:46:31PM -0400, Greg Freemyer wrote: > On Mon, Aug 25, 2014 at 6:26 PM, Dave Chinner wrote: > > On Mon, Aug 25, 2014 at 06:31:10PM +0800, Zhang Qiang wrote: > >> 2014-08-25 17:08 GMT+08:00 Dave Chinner : > >> > >> > On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wrote: > >> > > I have checked icount and ifree, but I found there are about 11.8 percent > >> > > free, so the free inode should not be too few. > >> > > > >> > > Here's the detail log, any new clue? > >> > > > >> > > # mount /dev/sda4 /data1/ > >> > > # xfs_info /data1/ > >> > > meta-data=/dev/sda4 isize=256 agcount=4, agsize=142272384 > >> > > >> > 4 AGs > >> > > >> Yes. > >> > >> > > >> > > icount = 220619904 > >> > > ifree = 26202919 > >> > > >> > And 220 million inodes. There's your problem - that's an average > >> > of 55 million inodes per AGI btree assuming you are using inode64. > >> > If you are using inode32, then the inodes will be in 2 btrees, or > >> > maybe even only one. > >> > > >> > >> You are right, all inodes stay on one AG. > >> > >> BTW, why i allocate 4 AGs, and all inodes stay in one AG for inode32?, > > > > Because the top addresses in the 2nd AG go over 32 bits, hence only > > AG 0 can be used for inodes. Changing to inode64 will give you some > > relief, but any time allocation occurs in AG0 is will be slow. i.e. > > you'll be trading always slow for "unpredictably slow". > > > >> > With that many inodes, I'd be considering moving to 32 or 64 AGs to > >> > keep the btree size down to a more manageable size. The free inode > >> > >> btree would also help, but, really, 220M inodes in a 2TB filesystem > >> > is really pushing the boundaries of sanity..... > >> > > >> > >> So the better inodes size in one AG is about 5M, > > > > Not necessarily. But for your storage it's almost certainly going to > > minimise the problem you are seeing. > > > >> is there any documents > >> about these options I can learn more? > > > > http://xfs.org/index.php/XFS_Papers_and_Documentation > > Given the apparently huge number of small files would he likely see a > big performance increase if he replaced that 2TB or rust with SSD. Doubt it - the profiles showed the allocation being CPU bound searching the metadata that indexes all those inodes. Those same profiles showed all the signs that it was hitting the buffer cache most of the time, too, which is why it was CPU bound.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From BATV+51bc9e941fdcf2bf9be0+4020+infradead.org+hch@bombadil.srs.infradead.org Mon Aug 25 23:09:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id B1B897F4E for ; Mon, 25 Aug 2014 23:09:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9FB5D304051 for ; Mon, 25 Aug 2014 21:09:23 -0700 (PDT) X-ASG-Debug-ID: 1409026162-04cbb054877f6a00001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id 1NAF0NBojbjP8Trc (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Mon, 25 Aug 2014 21:09:22 -0700 (PDT) X-Barracuda-Envelope-From: BATV+51bc9e941fdcf2bf9be0+4020+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XM84P-0003xn-RJ; Tue, 26 Aug 2014 04:09:21 +0000 Date: Mon, 25 Aug 2014 21:09:21 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-ID: <20140826040921.GA9591@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409016101-9511-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409026162 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8836 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS > @@ -3556,14 +3622,10 @@ xlog_recover_process_data( > xfs_caddr_t dp, > int pass) > { > + struct xlog_op_header *ohead; > xfs_caddr_t lp; > int num_logops; > int error; > > lp = dp + be32_to_cpu(rhead->h_len); > num_logops = be32_to_cpu(rhead->h_num_logops); > @@ -3573,69 +3635,24 @@ xlog_recover_process_data( > return -EIO; > > while ((dp < lp) && num_logops) { > + ASSERT(dp + sizeof(struct xlog_op_header) <= lp); > + > + ohead = (struct xlog_op_header *)dp; > + dp += sizeof(*ohead); Using sizeof type and sizeof variable for the same thing right next to each other seems weird. Also why duplicate the addition instead of moving it below the assignment: ohead = (struct xlog_op_header *)dp; dp += sizeof(*ohead); ASSERT(dp <= lp); From david@fromorbit.com Mon Aug 25 23:55:16 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 467FD7F4E for ; Mon, 25 Aug 2014 23:55:16 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3362F30404E for ; Mon, 25 Aug 2014 21:55:15 -0700 (PDT) X-ASG-Debug-ID: 1409028912-04cbb054887f8d30001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id FGZ1aFEBMRZMDc2W for ; Mon, 25 Aug 2014 21:55:12 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmUTAOER/FN5LDJ8PGdsb2JhbABagw2BKoczp3oBAQEBBqRuAYEbFwUBAQEBODaEAwEBBAEnExwjBQsIAw4KCSUPBSUDBxoTiDoHvg8XGIVkiVAHhEwBBJxIjBGMbCsvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 14:25:11 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XM8mj-0000lj-V6; Tue, 26 Aug 2014 14:55:10 +1000 Date: Tue, 26 Aug 2014 14:55:09 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-ID: <20140826045509.GI20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-2-git-send-email-david@fromorbit.com> <20140826040921.GA9591@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140826040921.GA9591@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409028912 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8837 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Mon, Aug 25, 2014 at 09:09:21PM -0700, Christoph Hellwig wrote: > > @@ -3556,14 +3622,10 @@ xlog_recover_process_data( > > xfs_caddr_t dp, > > int pass) > > { > > + struct xlog_op_header *ohead; > > xfs_caddr_t lp; > > int num_logops; > > int error; > > > > lp = dp + be32_to_cpu(rhead->h_len); > > num_logops = be32_to_cpu(rhead->h_num_logops); > > @@ -3573,69 +3635,24 @@ xlog_recover_process_data( > > return -EIO; > > > > while ((dp < lp) && num_logops) { > > + ASSERT(dp + sizeof(struct xlog_op_header) <= lp); > > + > > + ohead = (struct xlog_op_header *)dp; > > + dp += sizeof(*ohead); > > Using sizeof type and sizeof variable for the same thing right next > to each other seems weird. Also why duplicate the addition instead > of moving it below the assignment: Oh, I missed converting the one in the ASSERT. > ohead = (struct xlog_op_header *)dp; > dp += sizeof(*ohead); > > ASSERT(dp <= lp); Yup, that makes sense. Cheers, Dave. -- Dave Chinner david@fromorbit.com From stan@hardwarefreak.com Tue Aug 26 01:18:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C345C7F3F for ; Tue, 26 Aug 2014 01:18:53 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6E586AC001 for ; Mon, 25 Aug 2014 23:18:53 -0700 (PDT) X-ASG-Debug-ID: 1409033930-04bdf010a05008f0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id mDzmCeREi8fiu7FY for ; Mon, 25 Aug 2014 23:18:51 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id 8A5596C192; Tue, 26 Aug 2014 01:18:50 -0500 (CDT) To: Subject: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Tue, 26 Aug 2014 01:18:50 -0500 From: Stan Hoeppner Message-ID: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409033931 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Had some controller issues but believe we had those ironed out before this recent breakage. I had reformatted both 48TB LUNs on this test box with -f and defaults, and fired up the test app again. Throughput was fantastic with no dropped application buffers for ~30 minutes, and IO times were 1.x ms max, suggesting all the writes were acked by controller cache. The app was running perfectly. Then it hanged and spit out an internal error msg: Failed to reopen file /mnt/VOL1/sg-04/str-0015/f-0000000005 I have many call traces in dmesg, most are XFS, pasted below. I found no SCSI I/O errors in dmesg. Application is submitting writes via libaio and using O_DIRECT, writing to preallocated files. I don't see any errors in the storage controller log and everything seems to check out there. Using noop elevator, mpt2sas, no multipathing. The application process is hung in d state and kill -9 won't get rid of it. I can't unmount the hosed up filesystem. Any ideas? # ls -la /mnt/VOL1 ls: cannot access /mnt/VOL1: Input/output error # dd if=/mnt/VOL1 of=/dev/null bs=1M count=16 dd: opening `/mnt/VOL1': Input/output error # dd if=/dev/sdd of=/dev/null bs=1M count=16 16+0 records in 16+0 records out 16777216 bytes (17 MB) copied, 1.10989 s, 15.1 MB/s # ls -la /mnt/ ls: cannot access /mnt/VOL1: Input/output error total 8 drwxrwxrwt 6 root root 120 Aug 25 17:59 . drwxr-xr-x 21 root root 4096 Jul 15 09:39 .. drwxrwxrwt 3 root root 80 Aug 25 16:52 initramfs drwxr-xr-x 3 root root 4096 Apr 24 04:57 scratch drwxrwxrwx 5 root root 58 Aug 25 22:06 VOL0 d????????? ? ? ? ? ? VOL1 # umount /mnt/VOL1 umount: /mnt/VOL1: device is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) Kernel 3.4.26 xfs_repair version 3.1.4 2 socket, 20 core Xeon(R) CPU E5-2650 v2 @ 2.60GHz MemTotal: 264573184 kB MemFree: 246519624 kB Buffers: 16820 kB Cached: 78120 kB SwapCached: 0 kB Active: 13130040 kB Inactive: 75352 kB Active(anon): 13110512 kB Inactive(anon): 276 kB Active(file): 19528 kB Inactive(file): 75076 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 13126968 kB Mapped: 11848 kB Shmem: 340 kB Slab: 208476 kB SReclaimable: 118240 kB SUnreclaim: 90236 kB KernelStack: 3976 kB PageTables: 32840 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 132286592 kB Committed_AS: 25044716 kB VmallocTotal: 34359738367 kB VmallocUsed: 1050608 kB VmallocChunk: 34358680400 kB AnonHugePages: 13078528 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 5056 kB DirectMap2M: 2045952 kB DirectMap1G: 266338304 kB /dev/sdc /mnt/VOL0 xfs rw,noatime,nodiratime,attr2,nobarrier,inode64,noquota 0 0 /dev/sdd /mnt/VOL1 xfs rw,noatime,nodiratime,attr2,nobarrier,inode64,noquota 0 0 major minor #blocks name 8 32 46837141504 sdc 8 48 46837141504 sdd 2x hardware RAID5 LUNs - 64KB su, 768KB sw 2 controllers, one per LUN, 3GB cache each, write back, FPGA RAID engine No LVM. LUNs directly formatted with XFS 26 Seagate SAS 3.5" 7.2K drives, 13 per RAID5, drive caches disabled My counterpart had what I'd guess is this same problem on the full test rig, which has 16 of these LUNS, 208 drives total. He was also testing with libaio. I have not dug into the logs on that host as of yet. Its config is identical to this box but for the number of LUNs, drives. [22635.102013] INFO: task kworker/7:0:45 blocked for more than 120 seconds. [22635.102016] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102018] kworker/7:0 D ffff8840666c0b08 0 45 2 0x00000000 [22635.102021] ffff8840666e7bd0 0000000000000046 ffff883f7c02d000 ffff8840666f5180 [22635.102026] ffff8840666e7b80 0000000000000206 00000000000122c0 00000000000122c0 [22635.102030] ffff8840666e7fd8 ffff8840666e6000 00000000000122c0 ffff8840666e6000 [22635.102033] Call Trace: [22635.102041] [] schedule+0x64/0x66 [22635.102044] [] rwsem_down_failed_common+0xdb/0x10d [22635.102047] [] rwsem_down_write_failed+0x13/0x15 [22635.102051] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102055] [] ? _raw_spin_unlock_irqrestore+0x30/0x3d [22635.102058] [] ? down_write+0x25/0x27 [22635.102070] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102077] [] xfs_iomap_write_unwritten+0x1b3/0x32e [xfs] [22635.102080] [] ? _raw_spin_unlock_irqrestore+0x30/0x3d [22635.102084] [] ? xfs_setfilesize+0x128/0x128 [xfs] [22635.102088] [] ? mempool_free+0x73/0x78 [22635.102093] [] ? xfs_setfilesize+0x128/0x128 [xfs] [22635.102098] [] xfs_end_io+0x89/0xb4 [xfs] [22635.102102] [] process_one_work+0x204/0x327 [22635.102105] [] worker_thread+0x13b/0x25a [22635.102108] [] ? process_one_work+0x327/0x327 [22635.102111] [] kthread+0x89/0x91 [22635.102115] [] kernel_thread_helper+0x4/0x10 [22635.102118] [] ? __init_kthread_worker+0x3c/0x3c [22635.102120] [] ? gs_change+0xb/0xb [22635.102131] INFO: task streamRT-sa:5891 blocked for more than 120 seconds. [22635.102132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102134] streamRT-sa D ffff883f52850348 0 5891 5114 0x00000004 [22635.102136] ffff884063af5b28 0000000000000082 000000000000029c ffff884066679100 [22635.102140] 0000000000000006 0000000000000001 00000000000122c0 00000000000122c0 [22635.102143] ffff884063af5fd8 ffff884063af4000 00000000000122c0 ffff884063af4000 [22635.102146] Call Trace: [22635.102149] [] schedule+0x64/0x66 [22635.102151] [] rwsem_down_failed_common+0xdb/0x10d [22635.102154] [] rwsem_down_write_failed+0x13/0x15 [22635.102156] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102158] [] ? down_write+0x25/0x27 [22635.102164] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102170] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102172] [] ? _raw_spin_unlock_irq+0x27/0x32 [22635.102178] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102184] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102189] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102195] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102199] [] aio_rw_vect_retry+0x85/0x18a [22635.102202] [] ? aio_fsync+0x29/0x29 [22635.102204] [] aio_run_iocb+0x7b/0x149 [22635.102207] [] io_submit_one+0x199/0x1f3 [22635.102209] [] do_io_submit+0xfa/0x271 [22635.102212] [] sys_io_submit+0x10/0x12 [22635.102215] [] system_call_fastpath+0x16/0x1b [22635.102217] INFO: task streamRT-sa:5895 blocked for more than 120 seconds. [22635.102218] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102219] streamRT-sa D ffff883f537fa3c8 0 5895 5114 0x00000004 [22635.102222] ffff883f7d057b28 0000000000000082 0000000000000000 ffff884066227100 [22635.102225] ffff883f7d057ad8 0000000000000002 00000000000122c0 00000000000122c0 [22635.102228] ffff883f7d057fd8 ffff883f7d056000 00000000000122c0 ffff883f7d056000 [22635.102232] Call Trace: [22635.102234] [] schedule+0x64/0x66 [22635.102236] [] rwsem_down_failed_common+0xdb/0x10d [22635.102239] [] rwsem_down_write_failed+0x13/0x15 [22635.102241] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102243] [] ? down_write+0x25/0x27 [22635.102249] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102254] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102257] [] ? _raw_spin_unlock_irqrestore+0x30/0x3d [22635.102262] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102268] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102274] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102279] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102282] [] aio_rw_vect_retry+0x85/0x18a [22635.102284] [] ? aio_fsync+0x29/0x29 [22635.102286] [] aio_run_iocb+0x7b/0x149 [22635.102288] [] io_submit_one+0x199/0x1f3 [22635.102291] [] do_io_submit+0xfa/0x271 [22635.102294] [] ? sys_rt_sigprocmask+0x69/0xa1 [22635.102297] [] sys_io_submit+0x10/0x12 [22635.102299] [] system_call_fastpath+0x16/0x1b [22635.102301] INFO: task streamRT-sa:5900 blocked for more than 120 seconds. [22635.102302] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102303] streamRT-sa D ffff883f53003b88 0 5900 5114 0x00000004 [22635.102305] ffff883f7d109b28 0000000000000082 0000000000000000 ffff884066679100 [22635.102309] ffff883f7d109ad8 0000000000000002 00000000000122c0 00000000000122c0 [22635.102312] ffff883f7d109fd8 ffff883f7d108000 00000000000122c0 ffff883f7d108000 [22635.102315] Call Trace: [22635.102318] [] schedule+0x64/0x66 [22635.102320] [] rwsem_down_failed_common+0xdb/0x10d [22635.102322] [] rwsem_down_write_failed+0x13/0x15 [22635.102324] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102327] [] ? down_write+0x25/0x27 [22635.102332] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102338] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102340] [] ? _raw_spin_unlock_irqrestore+0x30/0x3d [22635.102346] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102351] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102357] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102362] [] ? resched_task+0x3e/0x75 [22635.102367] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102369] [] aio_rw_vect_retry+0x85/0x18a [22635.102372] [] ? aio_fsync+0x29/0x29 [22635.102374] [] aio_run_iocb+0x7b/0x149 [22635.102376] [] io_submit_one+0x199/0x1f3 [22635.102379] [] do_io_submit+0xfa/0x271 [22635.102382] [] sys_io_submit+0x10/0x12 [22635.102384] [] system_call_fastpath+0x16/0x1b [22635.102386] INFO: task streamRT-sa:5904 blocked for more than 120 seconds. [22635.102387] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102388] streamRT-sa D ffff88405fd50a48 0 5904 5114 0x00000004 [22635.102390] ffff883f51c2bb28 0000000000000082 0000000000000000 ffff8840662d0080 [22635.102394] ffff883f51c2bad8 0000000000000002 00000000000122c0 00000000000122c0 [22635.102397] ffff883f51c2bfd8 ffff883f51c2a000 00000000000122c0 ffff883f51c2a000 [22635.102400] Call Trace: [22635.102402] [] schedule+0x64/0x66 [22635.102405] [] rwsem_down_failed_common+0xdb/0x10d [22635.102407] [] rwsem_down_write_failed+0x13/0x15 [22635.102409] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102412] [] ? down_write+0x25/0x27 [22635.102417] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102423] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102425] [] ? _raw_spin_unlock_irqrestore+0x30/0x3d [22635.102430] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102436] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102442] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102447] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102450] [] aio_rw_vect_retry+0x85/0x18a [22635.102452] [] ? aio_fsync+0x29/0x29 [22635.102454] [] aio_run_iocb+0x7b/0x149 [22635.102457] [] io_submit_one+0x199/0x1f3 [22635.102459] [] do_io_submit+0xfa/0x271 [22635.102461] [] ? sys_rt_sigprocmask+0x69/0xa1 [22635.102464] [] sys_io_submit+0x10/0x12 [22635.102466] [] system_call_fastpath+0x16/0x1b [22635.102468] INFO: task streamRT-sa:5906 blocked for more than 120 seconds. [22635.102469] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102470] streamRT-sa D ffff88405fe2ca88 0 5906 5114 0x00000004 [22635.102473] ffff883f51c2fb28 0000000000000082 0000000000000000 ffff8840667f00c0 [22635.102476] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 [22635.102479] ffff883f51c2ffd8 ffff883f51c2e000 00000000000122c0 ffff883f51c2e000 [22635.102482] Call Trace: [22635.102485] [] schedule+0x64/0x66 [22635.102487] [] rwsem_down_failed_common+0xdb/0x10d [22635.102489] [] rwsem_down_write_failed+0x13/0x15 [22635.102491] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102494] [] ? down_write+0x25/0x27 [22635.102499] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102505] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102507] [] ? _raw_spin_unlock_irq+0x27/0x32 [22635.102512] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102518] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102524] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102529] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102532] [] aio_rw_vect_retry+0x85/0x18a [22635.102534] [] ? aio_fsync+0x29/0x29 [22635.102536] [] aio_run_iocb+0x7b/0x149 [22635.102538] [] io_submit_one+0x199/0x1f3 [22635.102541] [] do_io_submit+0xfa/0x271 [22635.102543] [] ? sys_rt_sigprocmask+0x69/0xa1 [22635.102545] [] sys_io_submit+0x10/0x12 [22635.102548] [] system_call_fastpath+0x16/0x1b [22635.102550] INFO: task streamRT-sa:5908 blocked for more than 120 seconds. [22635.102551] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102552] streamRT-sa D ffff88405fe2fac8 0 5908 5114 0x00000004 [22635.102554] ffff883f518b3b28 0000000000000082 000000000000029c ffff884066770040 [22635.102558] 0000000000000006 0000000000000001 00000000000122c0 00000000000122c0 [22635.102561] ffff883f518b3fd8 ffff883f518b2000 00000000000122c0 ffff883f518b2000 [22635.102564] Call Trace: [22635.102566] [] schedule+0x64/0x66 [22635.102569] [] rwsem_down_failed_common+0xdb/0x10d [22635.102571] [] rwsem_down_write_failed+0x13/0x15 [22635.102573] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102575] [] ? down_write+0x25/0x27 [22635.102581] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102586] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102589] [] ? _raw_spin_unlock_irq+0x27/0x32 [22635.102594] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102600] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102620] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102627] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102630] [] aio_rw_vect_retry+0x85/0x18a [22635.102637] [] ? aio_fsync+0x29/0x29 [22635.102641] [] aio_run_iocb+0x7b/0x149 [22635.102651] [] io_submit_one+0x199/0x1f3 [22635.102655] [] do_io_submit+0xfa/0x271 [22635.102661] [] sys_io_submit+0x10/0x12 [22635.102664] [] system_call_fastpath+0x16/0x1b [22635.102669] INFO: task streamRT-sa:5909 blocked for more than 120 seconds. [22635.102675] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102677] streamRT-sa D ffff88405fe2f3c8 0 5909 5114 0x00000004 [22635.102683] ffff883f518b5b28 0000000000000082 00000000000000de ffff88406663a040 [22635.102694] 0000000000000002 0000000000000001 00000000000122c0 00000000000122c0 [22635.102705] ffff883f518b5fd8 ffff883f518b4000 00000000000122c0 ffff883f518b4000 [22635.102719] Call Trace: [22635.102723] [] schedule+0x64/0x66 [22635.102729] [] rwsem_down_failed_common+0xdb/0x10d [22635.102734] [] rwsem_down_write_failed+0x13/0x15 [22635.102739] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102742] [] ? down_write+0x25/0x27 [22635.102751] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102761] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102765] [] ? _raw_spin_unlock_irq+0x27/0x32 [22635.102773] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102781] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102788] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102798] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102801] [] aio_rw_vect_retry+0x85/0x18a [22635.102805] [] ? aio_fsync+0x29/0x29 [22635.102809] [] aio_run_iocb+0x7b/0x149 [22635.102812] [] io_submit_one+0x199/0x1f3 [22635.102815] [] do_io_submit+0xfa/0x271 [22635.102818] [] ? sys_rt_sigprocmask+0x69/0xa1 [22635.102824] [] sys_io_submit+0x10/0x12 [22635.102827] [] system_call_fastpath+0x16/0x1b [22635.102834] INFO: task streamRT-sa:5911 blocked for more than 120 seconds. [22635.102836] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.102838] streamRT-sa D ffff883f5372c408 0 5911 5114 0x00000004 [22635.102844] ffff883f5208bb28 0000000000000082 0000000000000000 ffff884066001180 [22635.102850] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 [22635.102861] ffff883f5208bfd8 ffff883f5208a000 00000000000122c0 ffff883f5208a000 [22635.102877] Call Trace: [22635.102883] [] schedule+0x64/0x66 [22635.102886] [] rwsem_down_failed_common+0xdb/0x10d [22635.102890] [] rwsem_down_write_failed+0x13/0x15 [22635.102895] [] call_rwsem_down_write_failed+0x13/0x20 [22635.102902] [] ? down_write+0x25/0x27 [22635.102911] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.102918] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.102924] [] ? _raw_spin_unlock_irq+0x27/0x32 [22635.102931] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.102939] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.102947] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.102954] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.102959] [] aio_rw_vect_retry+0x85/0x18a [22635.102962] [] ? aio_fsync+0x29/0x29 [22635.102968] [] aio_run_iocb+0x7b/0x149 [22635.102973] [] io_submit_one+0x199/0x1f3 [22635.102976] [] do_io_submit+0xfa/0x271 [22635.102980] [] ? sys_rt_sigprocmask+0x69/0xa1 [22635.102985] [] sys_io_submit+0x10/0x12 [22635.102989] [] system_call_fastpath+0x16/0x1b [22635.102995] INFO: task streamRT-sa:5918 blocked for more than 120 seconds. [22635.102997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22635.103001] streamRT-sa D ffff883f53733a48 0 5918 5114 0x00000004 [22635.103007] ffff884063d99b28 0000000000000082 0000000000000000 ffff88406668b1c0 [22635.103017] 0000000000000000 0000000000000000 00000000000122c0 00000000000122c0 [22635.103029] ffff884063d99fd8 ffff884063d98000 00000000000122c0 ffff884063d98000 [22635.103037] Call Trace: [22635.103042] [] schedule+0x64/0x66 [22635.103047] [] rwsem_down_failed_common+0xdb/0x10d [22635.103050] [] rwsem_down_write_failed+0x13/0x15 [22635.103054] [] call_rwsem_down_write_failed+0x13/0x20 [22635.103058] [] ? down_write+0x25/0x27 [22635.103065] [] xfs_ilock+0x4f/0xb4 [xfs] [22635.103072] [] xfs_rw_ilock+0x2c/0x33 [xfs] [22635.103076] [] ? _raw_spin_unlock_irq+0x27/0x32 [22635.103086] [] xfs_file_aio_write_checks+0x41/0xfe [xfs] [22635.103092] [] xfs_file_dio_aio_write+0x103/0x1fc [xfs] [22635.103099] [] xfs_file_aio_write+0x152/0x1b5 [xfs] [22635.103109] [] ? xfs_file_buffered_aio_write+0x179/0x179 [xfs] [22635.103113] [] aio_rw_vect_retry+0x85/0x18a [22635.103120] [] ? aio_fsync+0x29/0x29 [22635.103126] [] aio_run_iocb+0x7b/0x149 [22635.103129] [] io_submit_one+0x199/0x1f3 [22635.103134] [] do_io_submit+0xfa/0x271 [22635.103139] [] ? sys_rt_sigprocmask+0x69/0xa1 [22635.103142] [] sys_io_submit+0x10/0x12 [22635.103146] [] system_call_fastpath+0x16/0x1b # ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 Aug25 ? 00:00:05 init [3] root 2 0 0 Aug25 ? 00:00:00 [kthreadd] root 3 2 0 Aug25 ? 00:00:00 [ksoftirqd/0] root 6 2 0 Aug25 ? 00:00:00 [migration/0] root 7 2 0 Aug25 ? 00:00:00 [rcuc/0] root 8 2 0 Aug25 ? 00:00:00 [rcun/0] root 9 2 0 Aug25 ? 00:00:00 [rcub/0] root 10 2 0 Aug25 ? 00:00:00 [rcun/1] root 11 2 0 Aug25 ? 00:00:00 [rcub/1] root 12 2 0 Aug25 ? 00:00:00 [watchdog/0] root 13 2 0 Aug25 ? 00:00:00 [migration/1] root 15 2 0 Aug25 ? 00:00:00 [rcuc/1] root 16 2 0 Aug25 ? 00:00:00 [ksoftirqd/1] root 18 2 0 Aug25 ? 00:00:00 [watchdog/1] root 19 2 0 Aug25 ? 00:00:00 [migration/2] root 20 2 0 Aug25 ? 00:00:00 [kworker/2:0] root 21 2 0 Aug25 ? 00:00:00 [rcuc/2] root 22 2 0 Aug25 ? 00:00:00 [ksoftirqd/2] root 23 2 0 Aug25 ? 00:00:00 [watchdog/2] root 24 2 0 Aug25 ? 00:00:00 [migration/3] root 26 2 0 Aug25 ? 00:00:00 [rcuc/3] root 27 2 0 Aug25 ? 00:00:00 [ksoftirqd/3] root 28 2 0 Aug25 ? 00:00:00 [watchdog/3] root 29 2 0 Aug25 ? 00:00:00 [migration/4] root 30 2 0 Aug25 ? 00:00:00 [kworker/4:0] root 31 2 0 Aug25 ? 00:00:00 [rcuc/4] root 32 2 0 Aug25 ? 00:00:00 [ksoftirqd/4] root 33 2 0 Aug25 ? 00:00:00 [watchdog/4] root 34 2 0 Aug25 ? 00:00:00 [migration/5] root 36 2 0 Aug25 ? 00:00:00 [rcuc/5] root 37 2 0 Aug25 ? 00:00:00 [ksoftirqd/5] root 38 2 0 Aug25 ? 00:00:00 [watchdog/5] root 39 2 0 Aug25 ? 00:00:00 [migration/6] root 40 2 0 Aug25 ? 00:00:00 [kworker/6:0] root 41 2 0 Aug25 ? 00:00:00 [rcuc/6] root 42 2 0 Aug25 ? 00:00:00 [ksoftirqd/6] root 43 2 0 Aug25 ? 00:00:00 [watchdog/6] root 44 2 0 Aug25 ? 00:00:00 [migration/7] root 45 2 0 Aug25 ? 00:00:00 [kworker/7:0] root 46 2 0 Aug25 ? 00:00:00 [rcuc/7] root 47 2 0 Aug25 ? 00:00:00 [ksoftirqd/7] root 48 2 0 Aug25 ? 00:00:00 [watchdog/7] root 49 2 0 Aug25 ? 00:00:00 [migration/8] root 50 2 0 Aug25 ? 00:00:00 [kworker/8:0] root 51 2 0 Aug25 ? 00:00:00 [rcuc/8] root 52 2 0 Aug25 ? 00:00:00 [ksoftirqd/8] root 53 2 0 Aug25 ? 00:00:00 [watchdog/8] root 54 2 0 Aug25 ? 00:00:00 [migration/9] root 56 2 0 Aug25 ? 00:00:00 [rcuc/9] root 57 2 0 Aug25 ? 00:00:00 [ksoftirqd/9] root 58 2 0 Aug25 ? 00:00:00 [watchdog/9] root 59 2 0 Aug25 ? 00:00:00 [migration/10] root 60 2 0 Aug25 ? 00:00:00 [kworker/10:0] root 61 2 0 Aug25 ? 00:00:00 [rcuc/10] root 62 2 0 Aug25 ? 00:00:00 [ksoftirqd/10] root 63 2 0 Aug25 ? 00:00:00 [watchdog/10] root 64 2 0 Aug25 ? 00:00:00 [migration/11] root 66 2 0 Aug25 ? 00:00:00 [rcuc/11] root 67 2 0 Aug25 ? 00:00:00 [ksoftirqd/11] root 68 2 0 Aug25 ? 00:00:00 [watchdog/11] root 69 2 0 Aug25 ? 00:00:00 [migration/12] root 70 2 0 Aug25 ? 00:00:00 [kworker/12:0] root 71 2 0 Aug25 ? 00:00:00 [rcuc/12] root 72 2 0 Aug25 ? 00:00:00 [ksoftirqd/12] root 73 2 0 Aug25 ? 00:00:00 [watchdog/12] root 74 2 0 Aug25 ? 00:00:00 [migration/13] root 76 2 0 Aug25 ? 00:00:00 [rcuc/13] root 77 2 0 Aug25 ? 00:00:00 [ksoftirqd/13] root 78 2 0 Aug25 ? 00:00:00 [watchdog/13] root 79 2 0 Aug25 ? 00:00:00 [migration/14] root 80 2 0 Aug25 ? 00:00:00 [kworker/14:0] root 81 2 0 Aug25 ? 00:00:00 [rcuc/14] root 82 2 0 Aug25 ? 00:00:00 [ksoftirqd/14] root 83 2 0 Aug25 ? 00:00:00 [watchdog/14] root 84 2 0 Aug25 ? 00:00:00 [migration/15] root 86 2 0 Aug25 ? 00:00:00 [rcuc/15] root 87 2 0 Aug25 ? 00:00:00 [ksoftirqd/15] root 88 2 0 Aug25 ? 00:00:00 [watchdog/15] root 89 2 0 Aug25 ? 00:00:00 [migration/16] root 90 2 0 Aug25 ? 00:00:00 [kworker/16:0] root 91 2 0 Aug25 ? 00:00:00 [rcuc/16] root 92 2 0 Aug25 ? 00:00:00 [rcun/2] root 93 2 0 Aug25 ? 00:00:00 [rcub/2] root 94 2 0 Aug25 ? 00:00:00 [ksoftirqd/16] root 95 2 0 Aug25 ? 00:00:00 [watchdog/16] root 96 2 0 Aug25 ? 00:00:00 [migration/17] root 98 2 0 Aug25 ? 00:00:00 [rcuc/17] root 99 2 0 Aug25 ? 00:00:00 [ksoftirqd/17] root 100 2 0 Aug25 ? 00:00:00 [watchdog/17] root 101 2 0 Aug25 ? 00:00:00 [migration/18] root 102 2 0 Aug25 ? 00:00:00 [kworker/18:0] root 103 2 0 Aug25 ? 00:00:00 [rcuc/18] root 104 2 0 Aug25 ? 00:00:00 [ksoftirqd/18] root 105 2 0 Aug25 ? 00:00:00 [watchdog/18] root 106 2 0 Aug25 ? 00:00:00 [migration/19] root 107 2 0 Aug25 ? 00:00:00 [kworker/19:0] root 108 2 0 Aug25 ? 00:00:00 [rcuc/19] root 109 2 0 Aug25 ? 00:00:00 [ksoftirqd/19] root 110 2 0 Aug25 ? 00:00:00 [watchdog/19] root 111 2 0 Aug25 ? 00:00:00 [migration/20] root 112 2 0 Aug25 ? 00:00:00 [kworker/20:0] root 113 2 0 Aug25 ? 00:00:00 [rcuc/20] root 114 2 0 Aug25 ? 00:00:00 [ksoftirqd/20] root 115 2 0 Aug25 ? 00:00:00 [watchdog/20] root 116 2 0 Aug25 ? 00:00:00 [migration/21] root 117 2 0 Aug25 ? 00:00:00 [kworker/21:0] root 118 2 0 Aug25 ? 00:00:00 [rcuc/21] root 119 2 0 Aug25 ? 00:00:00 [ksoftirqd/21] root 120 2 0 Aug25 ? 00:00:00 [watchdog/21] root 121 2 0 Aug25 ? 00:00:00 [migration/22] root 122 2 0 Aug25 ? 00:00:00 [kworker/22:0] root 123 2 0 Aug25 ? 00:00:00 [rcuc/22] root 124 2 0 Aug25 ? 00:00:00 [ksoftirqd/22] root 125 2 0 Aug25 ? 00:00:00 [watchdog/22] root 126 2 0 Aug25 ? 00:00:00 [migration/23] root 128 2 0 Aug25 ? 00:00:00 [rcuc/23] root 129 2 0 Aug25 ? 00:00:00 [ksoftirqd/23] root 130 2 0 Aug25 ? 00:00:00 [watchdog/23] root 131 2 0 Aug25 ? 00:00:00 [migration/24] root 132 2 0 Aug25 ? 00:00:00 [kworker/24:0] root 133 2 0 Aug25 ? 00:00:00 [rcuc/24] root 134 2 0 Aug25 ? 00:00:00 [ksoftirqd/24] root 135 2 0 Aug25 ? 00:00:00 [watchdog/24] root 136 2 0 Aug25 ? 00:00:00 [migration/25] root 138 2 0 Aug25 ? 00:00:00 [rcuc/25] root 139 2 0 Aug25 ? 00:00:00 [ksoftirqd/25] root 140 2 0 Aug25 ? 00:00:00 [watchdog/25] root 141 2 0 Aug25 ? 00:00:00 [migration/26] root 142 2 0 Aug25 ? 00:00:00 [kworker/26:0] root 143 2 0 Aug25 ? 00:00:00 [rcuc/26] root 144 2 0 Aug25 ? 00:00:00 [ksoftirqd/26] root 145 2 0 Aug25 ? 00:00:00 [watchdog/26] root 146 2 0 Aug25 ? 00:00:00 [migration/27] root 147 2 0 Aug25 ? 00:00:00 [kworker/27:0] root 148 2 0 Aug25 ? 00:00:00 [rcuc/27] root 149 2 0 Aug25 ? 00:00:00 [ksoftirqd/27] root 150 2 0 Aug25 ? 00:00:00 [watchdog/27] root 151 2 0 Aug25 ? 00:00:00 [migration/28] root 152 2 0 Aug25 ? 00:00:00 [kworker/28:0] root 153 2 0 Aug25 ? 00:00:00 [rcuc/28] root 154 2 0 Aug25 ? 00:00:00 [ksoftirqd/28] root 155 2 0 Aug25 ? 00:00:00 [watchdog/28] root 156 2 0 Aug25 ? 00:00:00 [migration/29] root 157 2 0 Aug25 ? 00:00:00 [kworker/29:0] root 158 2 0 Aug25 ? 00:00:00 [rcuc/29] root 159 2 0 Aug25 ? 00:00:00 [ksoftirqd/29] root 160 2 0 Aug25 ? 00:00:00 [watchdog/29] root 161 2 0 Aug25 ? 00:00:00 [migration/30] root 162 2 0 Aug25 ? 00:00:00 [kworker/30:0] root 163 2 0 Aug25 ? 00:00:00 [rcuc/30] root 164 2 0 Aug25 ? 00:00:00 [ksoftirqd/30] root 165 2 0 Aug25 ? 00:00:00 [watchdog/30] root 166 2 0 Aug25 ? 00:00:00 [migration/31] root 167 2 0 Aug25 ? 00:00:00 [kworker/31:0] root 168 2 0 Aug25 ? 00:00:00 [rcuc/31] root 169 2 0 Aug25 ? 00:00:00 [ksoftirqd/31] root 170 2 0 Aug25 ? 00:00:00 [watchdog/31] root 171 2 0 Aug25 ? 00:00:00 [cpuset] root 172 2 0 Aug25 ? 00:00:00 [khelper] root 173 2 0 Aug25 ? 00:00:00 [netns] root 418 2 0 Aug25 ? 00:00:00 [sync_supers] root 420 2 0 Aug25 ? 00:00:00 [bdi-default] root 422 2 0 Aug25 ? 00:00:00 [kblockd] root 714 2 0 Aug25 ? 00:00:00 [ata_sff] root 724 2 0 Aug25 ? 00:00:00 [khubd] root 733 2 0 Aug25 ? 00:00:00 [kworker/30:1] root 735 2 0 Aug25 ? 00:00:00 [kworker/28:1] root 737 2 0 Aug25 ? 00:00:00 [kworker/26:1] root 739 2 0 Aug25 ? 00:00:00 [kworker/24:1] root 741 2 0 Aug25 ? 00:00:00 [kworker/22:1] root 743 2 0 Aug25 ? 00:00:00 [kworker/20:1] root 745 2 0 Aug25 ? 00:00:00 [kworker/18:1] root 747 2 0 Aug25 ? 00:00:00 [kworker/16:1] root 749 2 0 Aug25 ? 00:00:00 [kworker/14:1] root 751 2 0 Aug25 ? 00:00:00 [kworker/12:1] root 757 2 0 Aug25 ? 00:00:00 [kworker/10:1] root 759 2 0 Aug25 ? 00:00:00 [kworker/8:1] root 761 2 0 Aug25 ? 00:00:00 [kworker/6:1] root 763 2 0 Aug25 ? 00:00:00 [kworker/4:1] root 866 2 0 Aug25 ? 00:00:00 [rpciod] root 868 2 0 Aug25 ? 00:00:00 [kworker/2:1] root 975 2 0 Aug25 ? 00:00:00 [khungtaskd] root 981 2 0 Aug25 ? 00:00:00 [kswapd0] root 982 2 0 Aug25 ? 00:00:00 [khugepaged] root 983 2 0 Aug25 ? 00:00:00 [fsnotify_mark] root 984 2 0 Aug25 ? 00:00:00 [nfsiod] root 986 2 0 Aug25 ? 00:00:00 [crypto] root 1151 2 0 Aug25 ? 00:00:00 [kpsmoused] root 1167 2 0 Aug25 ? 00:00:00 [deferwq] root 1913 2 0 Aug25 ? 00:00:00 [bond0] root 2144 1 0 Aug25 ? 00:00:00 udevd --daemon root 2525 2 0 Aug25 ? 00:00:00 [scsi_eh_0] root 2537 2 0 Aug25 ? 00:00:00 [mlx4] root 2540 2 0 Aug25 ? 00:00:00 [scsi_eh_1] root 2541 2 0 Aug25 ? 00:00:00 [fw_event0] root 2595 2 0 Aug25 ? 00:00:00 [scsi_eh_2] root 2596 2 0 Aug25 ? 00:00:00 [scsi_eh_3] root 2597 2 0 Aug25 ? 00:00:00 [scsi_eh_4] root 2598 2 0 Aug25 ? 00:00:00 [scsi_eh_5] root 2599 2 0 Aug25 ? 00:00:00 [scsi_eh_6] root 2600 2 0 Aug25 ? 00:00:00 [scsi_eh_7] root 2667 2 0 Aug25 ? 00:00:00 [mlx4_en] root 2797 2144 0 Aug25 ? 00:00:00 udevd --daemon root 2798 2144 0 Aug25 ? 00:00:00 udevd --daemon root 2800 2 0 Aug25 ? 00:00:00 [mlx4_en] root 2817 2 0 Aug25 ? 00:00:00 [mlx4_en] root 2843 2 0 Aug25 ? 00:00:00 [poll_0_status] root 2844 2 0 Aug25 ? 00:00:00 [scsi_eh_8] root 2846 2 0 Aug25 ? 00:00:00 [fw_event1] root 2860 2 0 Aug25 ? 00:00:00 [poll_1_status] root 2861 2 0 Aug25 ? 00:00:00 [scsi_eh_9] root 2862 2 0 Aug25 ? 00:00:00 [fw_event2] root 2864 2 0 Aug25 ? 00:00:00 [poll_2_status] root 2865 2 0 Aug25 ? 00:00:00 [scsi_eh_10] root 2866 2 0 Aug25 ? 00:00:00 [fw_event3] root 2867 2 0 Aug25 ? 00:00:00 [poll_3_status] root 4059 2 0 Aug25 ? 00:00:00 [bond1] root 4464 2 0 Aug25 ? 00:00:00 [kdmflush] root 4470 2 0 Aug25 ? 00:00:00 [kdmflush] root 4476 2 0 Aug25 ? 00:00:00 [kdmflush] root 4482 2 0 Aug25 ? 00:00:00 [kdmflush] root 4488 2 0 Aug25 ? 00:00:00 [kdmflush] root 4494 2 0 Aug25 ? 00:00:00 [kdmflush] root 4500 2 0 Aug25 ? 00:00:00 [kdmflush] root 4506 2 0 Aug25 ? 00:00:00 [kdmflush] root 4512 2 0 Aug25 ? 00:00:00 [kdmflush] root 4518 2 0 Aug25 ? 00:00:00 [kdmflush] root 4527 2 0 Aug25 ? 00:00:00 [jbd2/dm-4-8] root 4528 2 0 Aug25 ? 00:00:00 [ext4-dio-unwrit] root 4593 1 0 Aug25 ? 00:00:00 /usr/sbin/rsyslogd -c5 root 4627 1 0 Aug25 ? 00:00:00 /usr/sbin/sshd root 4645 1 0 Aug25 ? 00:00:00 /usr/sbin/acpid root 4683 1 0 Aug25 ? 00:00:00 /usr/sbin/cron ntp 4713 1 0 Aug25 ? 00:00:00 /usr/sbin/ntpd -g -c /etc/ntp.conf -p /var/run/ntpd.pid -u ntp:ntp daemon 4747 1 0 Aug25 ? 00:00:00 /sbin/portmap root 4773 1 0 Aug25 ? 00:00:00 /sbin/rpc.statd root 4796 1 0 Aug25 ttyS0 00:00:00 /sbin/getty -L 115200 ttyS0 vt100 root 4797 1 0 Aug25 ? 00:00:22 initBC root 4908 2 0 Aug25 ? 00:00:00 [xfsalloc] root 4909 2 0 Aug25 ? 00:00:00 [xfs_mru_cache] root 4910 2 0 Aug25 ? 00:00:00 [xfslogd] root 4930 2 0 Aug25 ? 00:00:00 [xfsbufd/sdc] root 4931 2 0 Aug25 ? 00:00:00 [xfs-data/sdc] root 4932 2 0 Aug25 ? 00:00:00 [xfs-conv/sdc] root 4933 2 0 Aug25 ? 00:00:01 [xfsaild/sdc] root 4935 2 0 Aug25 ? 00:00:00 [xfsbufd/sdd] root 4936 2 0 Aug25 ? 00:00:00 [xfs-data/sdd] root 4937 2 0 Aug25 ? 00:00:00 [xfs-conv/sdd] root 4938 2 0 Aug25 ? 00:00:01 [xfsaild/sdd] root 5115 1 6 Aug25 ? 00:11:28 [streamRT-sa] root 6582 2 0 Aug25 ? 00:00:00 [kworker/1:2] root 6633 2 0 Aug25 ? 00:00:00 [kworker/23:1] root 6636 2 0 Aug25 ? 00:00:00 [kworker/15:0] root 6640 2 0 Aug25 ? 00:00:00 [kworker/29:2] root 6647 2 0 Aug25 ? 00:00:00 [kworker/3:1] root 6649 2 0 Aug25 ? 00:00:00 [kworker/25:2] root 6654 2 0 Aug25 ? 00:00:00 [kworker/1:0] root 6658 2 0 Aug25 ? 00:00:00 [kworker/19:1] root 6659 2 0 Aug25 ? 00:00:00 [kworker/21:1] root 6661 2 0 Aug25 ? 00:00:00 [kworker/27:2] root 6662 2 0 Aug25 ? 00:00:00 [kworker/15:2] root 6663 2 0 Aug25 ? 00:00:00 [kworker/5:2] root 6666 2 0 Aug25 ? 00:00:00 [kworker/31:2] root 6671 2 0 Aug25 ? 00:00:00 [kworker/0:4] root 6673 2 0 Aug25 ? 00:00:00 [kworker/7:3] root 6677 2 0 Aug25 ? 00:00:00 [kworker/0:6] root 6678 2 0 Aug25 ? 00:00:00 [kworker/0:7] root 6681 2 0 Aug25 ? 00:00:00 [kworker/0:10] root 6684 2 0 Aug25 ? 00:00:00 [kworker/13:5] root 6690 2 0 Aug25 ? 00:00:00 [kworker/9:4] root 6695 2 0 Aug25 ? 00:00:00 [kworker/7:5] root 6696 2 0 Aug25 ? 00:00:00 [kworker/13:7] root 6697 2 0 Aug25 ? 00:00:00 [kworker/9:6] root 6702 2 0 Aug25 ? 00:00:00 [kworker/0:11] root 6705 2 0 Aug25 ? 00:00:00 [kworker/0:14] root 6707 2 0 Aug25 ? 00:00:00 [kworker/0:16] root 6719 2 0 Aug25 ? 00:00:00 [kworker/0:24] root 6721 2 0 Aug25 ? 00:00:00 [kworker/0:26] root 6723 2 0 Aug25 ? 00:00:00 [kworker/9:8] root 6726 2 0 Aug25 ? 00:00:00 [kworker/31:5] root 6731 2 0 Aug25 ? 00:00:00 [kworker/1:7] root 6734 2 0 Aug25 ? 00:00:00 [kworker/11:6] root 6736 2 0 Aug25 ? 00:00:00 [kworker/13:10] root 6740 2 0 Aug25 ? 00:00:00 [kworker/0:30] root 6741 2 0 Aug25 ? 00:00:00 [kworker/0:31] root 6745 2 0 Aug25 ? 00:00:00 [kworker/9:9] root 6748 2 0 Aug25 ? 00:00:00 [kworker/0:36] root 6749 2 0 Aug25 ? 00:00:00 [kworker/19:3] root 6753 2 0 Aug25 ? 00:00:00 [kworker/23:3] root 6757 2 0 Aug25 ? 00:00:00 [kworker/13:12] root 6758 2 0 Aug25 ? 00:00:00 [kworker/7:6] root 6761 2 0 Aug25 ? 00:00:00 [kworker/0:41] root 6767 2 0 Aug25 ? 00:00:00 [kworker/0:44] root 6768 2 0 Aug25 ? 00:00:00 [kworker/5:7] root 6769 2 0 Aug25 ? 00:00:00 [kworker/1:9] root 6770 2 0 Aug25 ? 00:00:00 [kworker/0:45] root 6774 2 0 Aug25 ? 00:00:00 [kworker/17:7] root 6776 2 0 Aug25 ? 00:00:00 [kworker/3:4] root 6779 2 0 Aug25 ? 00:00:00 [kworker/11:9] root 6781 2 0 Aug25 ? 00:00:00 [kworker/0:50] root 6787 2 0 Aug25 ? 00:00:00 [kworker/0:53] root 6788 2 0 Aug25 ? 00:00:00 [kworker/25:1] root 6793 2 0 Aug25 ? 00:00:00 [kworker/1:10] root 6795 2 0 Aug25 ? 00:00:00 [kworker/27:4] root 6797 2 0 Aug25 ? 00:00:00 [kworker/0:57] root 6798 2 0 Aug25 ? 00:00:00 [kworker/0:58] root 6806 2 0 Aug25 ? 00:00:00 [kworker/15:5] root 6807 2 0 Aug25 ? 00:00:00 [kworker/0:62] root 6808 2 0 Aug25 ? 00:00:00 [kworker/0:63] root 6809 2 0 Aug25 ? 00:00:00 [kworker/17:8] root 6814 2 0 Aug25 ? 00:00:00 [kworker/0:66] root 6815 2 0 Aug25 ? 00:00:01 [kworker/0:67] root 6819 2 0 Aug25 ? 00:00:00 [kworker/0:69] root 6824 2 0 Aug25 ? 00:00:00 [kworker/25:3] root 6895 2 0 00:20 ? 00:00:00 [kworker/u:0] root 6900 2 0 00:26 ? 00:00:00 [kworker/u:1] root 6904 2 0 00:57 ? 00:00:00 [flush-0:20] root 6933 2 0 01:00 ? 00:00:00 [kworker/u:2] root 6934 4627 0 01:02 ? 00:00:00 sshd: iris [priv] iris 6936 6934 0 01:02 ? 00:00:00 sshd: iris@pts/1 iris 6937 6936 0 01:02 pts/1 00:00:00 -bash root 6967 6937 0 01:02 pts/1 00:00:00 sudo su root 6968 6967 0 01:02 pts/1 00:00:00 su root 6969 6968 0 01:02 pts/1 00:00:00 bash root 6976 6969 0 01:04 pts/1 00:00:00 ps -ef # lsof|grep stream lsof: WARNING: can't stat() xfs file system /mnt/VOL1 Output information may be incomplete. bash 6937 iris cwd DIR 0,20 4096 2113547 /iris/home/adrian/streamRT (mbc:/iris) sudo 6967 root cwd DIR 0,20 4096 2113547 /iris/home/adrian/streamRT (mbc:/iris) su 6968 root cwd DIR 0,20 4096 2113547 /iris/home/adrian/streamRT (mbc:/iris) bash 6969 root cwd DIR 0,20 4096 2113547 /iris/home/adrian/streamRT (mbc:/iris) -- Stan From stan@hardwarefreak.com Tue Aug 26 01:26:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CA9C17F3F for ; Tue, 26 Aug 2014 01:26:05 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7075F8F8037 for ; Mon, 25 Aug 2014 23:26:02 -0700 (PDT) X-ASG-Debug-ID: 1409034360-04bdf0109a500d10001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id Lc03Q6opbIlPUPBR for ; Mon, 25 Aug 2014 23:26:00 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id 0AAC56C192; Tue, 26 Aug 2014 01:25:59 -0500 (CDT) To: Stan Hoeppner Subject: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Tue, 26 Aug 2014 01:25:59 -0500 From: Stan Hoeppner Cc: In-Reply-To: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> Message-ID: <75371e88cb16c05079ea5211fe7378e6@localhost> X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409034360 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Forgot to mention: load average: 171.00, 171.00, 170.95 And that's with all processes idle for over 30 minutes. So I'm thinking bug. Probably has been fixed between .26 and .103 but they're stubborn about sticking with this 3.4.26 kernel, not because they have an affinity for it, but because of their slow process. On Tue, 26 Aug 2014 01:18:50 -0500, Stan Hoeppner wrote: > Had some controller issues but believe we had those ironed out before this > recent breakage. I had reformatted both 48TB LUNs on this test box with -f > and defaults, and fired up the test app again. Throughput was fantastic > with no dropped application buffers for ~30 minutes, and IO times were 1.x > ms max, suggesting all the writes were acked by controller cache. The app > was running perfectly. Then it hanged and spit out an internal error msg: > > > Failed to reopen file /mnt/VOL1/sg-04/str-0015/f-0000000005 > > I have many call traces in dmesg, most are XFS, pasted below. I found no > SCSI I/O errors in dmesg. Application is submitting writes via libaio and > using O_DIRECT, writing to preallocated files. I don't see any errors in > the storage controller log and everything seems to check out there. Using > noop elevator, mpt2sas, no multipathing. The application process is hung > in d state and kill -9 won't get rid of it. I can't unmount the hosed up > filesystem. Any ideas? > > # ls -la /mnt/VOL1 > ls: cannot access /mnt/VOL1: Input/output error > > # dd if=/mnt/VOL1 of=/dev/null bs=1M count=16 > dd: opening `/mnt/VOL1': Input/output error > > # dd if=/dev/sdd of=/dev/null bs=1M count=16 > 16+0 records in > 16+0 records out > 16777216 bytes (17 MB) copied, 1.10989 s, 15.1 MB/s > > # ls -la /mnt/ > ls: cannot access /mnt/VOL1: Input/output error > total 8 > drwxrwxrwt 6 root root 120 Aug 25 17:59 . > drwxr-xr-x 21 root root 4096 Jul 15 09:39 .. > drwxrwxrwt 3 root root 80 Aug 25 16:52 initramfs > drwxr-xr-x 3 root root 4096 Apr 24 04:57 scratch > drwxrwxrwx 5 root root 58 Aug 25 22:06 VOL0 > d????????? ? ? ? ? ? VOL1 > > # umount /mnt/VOL1 > umount: /mnt/VOL1: device is busy. > (In some cases useful info about processes that use > the device is found by lsof(8) or fuser(1)) > > > > Kernel 3.4.26 > xfs_repair version 3.1.4 > 2 socket, 20 core Xeon(R) CPU E5-2650 v2 @ 2.60GHz > > MemTotal: 264573184 kB > MemFree: 246519624 kB > Buffers: 16820 kB > Cached: 78120 kB > SwapCached: 0 kB > Active: 13130040 kB > Inactive: 75352 kB > Active(anon): 13110512 kB > Inactive(anon): 276 kB > Active(file): 19528 kB > Inactive(file): 75076 kB > Unevictable: 0 kB > Mlocked: 0 kB > SwapTotal: 0 kB > SwapFree: 0 kB > Dirty: 0 kB > Writeback: 0 kB > AnonPages: 13126968 kB > Mapped: 11848 kB > Shmem: 340 kB > Slab: 208476 kB > SReclaimable: 118240 kB > SUnreclaim: 90236 kB > KernelStack: 3976 kB > PageTables: 32840 kB > NFS_Unstable: 0 kB > Bounce: 0 kB > WritebackTmp: 0 kB > CommitLimit: 132286592 kB > Committed_AS: 25044716 kB > VmallocTotal: 34359738367 kB > VmallocUsed: 1050608 kB > VmallocChunk: 34358680400 kB > AnonHugePages: 13078528 kB > HugePages_Total: 0 > HugePages_Free: 0 > HugePages_Rsvd: 0 > HugePages_Surp: 0 > Hugepagesize: 2048 kB > DirectMap4k: 5056 kB > DirectMap2M: 2045952 kB > DirectMap1G: 266338304 kB > > /dev/sdc /mnt/VOL0 xfs > rw,noatime,nodiratime,attr2,nobarrier,inode64,noquota 0 0 > /dev/sdd /mnt/VOL1 xfs > rw,noatime,nodiratime,attr2,nobarrier,inode64,noquota 0 0 > > major minor #blocks name > 8 32 46837141504 sdc > 8 48 46837141504 sdd > > 2x hardware RAID5 LUNs - 64KB su, 768KB sw > 2 controllers, one per LUN, 3GB cache each, write back, FPGA RAID engine > No LVM. LUNs directly formatted with XFS > 26 Seagate SAS 3.5" 7.2K drives, 13 per RAID5, drive caches disabled > My counterpart had what I'd guess is this same problem on the full test > rig, > which has 16 of these LUNS, 208 drives total. He was also testing with > libaio. > I have not dug into the logs on that host as of yet. Its config is > identical > to this box but for the number of LUNs, drives. > > > [22635.102013] INFO: task kworker/7:0:45 blocked for more than 120 > seconds. > [22635.102016] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102018] kworker/7:0 D ffff8840666c0b08 0 45 2 > 0x00000000 > [22635.102021] ffff8840666e7bd0 0000000000000046 ffff883f7c02d000 > ffff8840666f5180 > [22635.102026] ffff8840666e7b80 0000000000000206 00000000000122c0 > 00000000000122c0 > [22635.102030] ffff8840666e7fd8 ffff8840666e6000 00000000000122c0 > ffff8840666e6000 > [22635.102033] Call Trace: > [22635.102041] [] schedule+0x64/0x66 > [22635.102044] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102047] [] rwsem_down_write_failed+0x13/0x15 > [22635.102051] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102055] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102058] [] ? down_write+0x25/0x27 > [22635.102070] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102077] [] xfs_iomap_write_unwritten+0x1b3/0x32e > [xfs] > [22635.102080] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102084] [] ? xfs_setfilesize+0x128/0x128 [xfs] > [22635.102088] [] ? mempool_free+0x73/0x78 > [22635.102093] [] ? xfs_setfilesize+0x128/0x128 [xfs] > [22635.102098] [] xfs_end_io+0x89/0xb4 [xfs] > [22635.102102] [] process_one_work+0x204/0x327 > [22635.102105] [] worker_thread+0x13b/0x25a > [22635.102108] [] ? process_one_work+0x327/0x327 > [22635.102111] [] kthread+0x89/0x91 > [22635.102115] [] kernel_thread_helper+0x4/0x10 > [22635.102118] [] ? __init_kthread_worker+0x3c/0x3c > [22635.102120] [] ? gs_change+0xb/0xb > [22635.102131] INFO: task streamRT-sa:5891 blocked for more than 120 > seconds. > [22635.102132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102134] streamRT-sa D ffff883f52850348 0 5891 5114 > 0x00000004 > [22635.102136] ffff884063af5b28 0000000000000082 000000000000029c > ffff884066679100 > [22635.102140] 0000000000000006 0000000000000001 00000000000122c0 > 00000000000122c0 > [22635.102143] ffff884063af5fd8 ffff884063af4000 00000000000122c0 > ffff884063af4000 > [22635.102146] Call Trace: > [22635.102149] [] schedule+0x64/0x66 > [22635.102151] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102154] [] rwsem_down_write_failed+0x13/0x15 > [22635.102156] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102158] [] ? down_write+0x25/0x27 > [22635.102164] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102170] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102172] [] ? _raw_spin_unlock_irq+0x27/0x32 > [22635.102178] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102184] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102189] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102195] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102199] [] aio_rw_vect_retry+0x85/0x18a > [22635.102202] [] ? aio_fsync+0x29/0x29 > [22635.102204] [] aio_run_iocb+0x7b/0x149 > [22635.102207] [] io_submit_one+0x199/0x1f3 > [22635.102209] [] do_io_submit+0xfa/0x271 > [22635.102212] [] sys_io_submit+0x10/0x12 > [22635.102215] [] system_call_fastpath+0x16/0x1b > [22635.102217] INFO: task streamRT-sa:5895 blocked for more than 120 > seconds. > [22635.102218] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102219] streamRT-sa D ffff883f537fa3c8 0 5895 5114 > 0x00000004 > [22635.102222] ffff883f7d057b28 0000000000000082 0000000000000000 > ffff884066227100 > [22635.102225] ffff883f7d057ad8 0000000000000002 00000000000122c0 > 00000000000122c0 > [22635.102228] ffff883f7d057fd8 ffff883f7d056000 00000000000122c0 > ffff883f7d056000 > [22635.102232] Call Trace: > [22635.102234] [] schedule+0x64/0x66 > [22635.102236] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102239] [] rwsem_down_write_failed+0x13/0x15 > [22635.102241] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102243] [] ? down_write+0x25/0x27 > [22635.102249] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102254] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102257] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102262] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102268] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102274] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102279] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102282] [] aio_rw_vect_retry+0x85/0x18a > [22635.102284] [] ? aio_fsync+0x29/0x29 > [22635.102286] [] aio_run_iocb+0x7b/0x149 > [22635.102288] [] io_submit_one+0x199/0x1f3 > [22635.102291] [] do_io_submit+0xfa/0x271 > [22635.102294] [] ? sys_rt_sigprocmask+0x69/0xa1 > [22635.102297] [] sys_io_submit+0x10/0x12 > [22635.102299] [] system_call_fastpath+0x16/0x1b > [22635.102301] INFO: task streamRT-sa:5900 blocked for more than 120 > seconds. > [22635.102302] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102303] streamRT-sa D ffff883f53003b88 0 5900 5114 > 0x00000004 > [22635.102305] ffff883f7d109b28 0000000000000082 0000000000000000 > ffff884066679100 > [22635.102309] ffff883f7d109ad8 0000000000000002 00000000000122c0 > 00000000000122c0 > [22635.102312] ffff883f7d109fd8 ffff883f7d108000 00000000000122c0 > ffff883f7d108000 > [22635.102315] Call Trace: > [22635.102318] [] schedule+0x64/0x66 > [22635.102320] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102322] [] rwsem_down_write_failed+0x13/0x15 > [22635.102324] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102327] [] ? down_write+0x25/0x27 > [22635.102332] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102338] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102340] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102346] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102351] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102357] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102362] [] ? resched_task+0x3e/0x75 > [22635.102367] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102369] [] aio_rw_vect_retry+0x85/0x18a > [22635.102372] [] ? aio_fsync+0x29/0x29 > [22635.102374] [] aio_run_iocb+0x7b/0x149 > [22635.102376] [] io_submit_one+0x199/0x1f3 > [22635.102379] [] do_io_submit+0xfa/0x271 > [22635.102382] [] sys_io_submit+0x10/0x12 > [22635.102384] [] system_call_fastpath+0x16/0x1b > [22635.102386] INFO: task streamRT-sa:5904 blocked for more than 120 > seconds. > [22635.102387] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102388] streamRT-sa D ffff88405fd50a48 0 5904 5114 > 0x00000004 > [22635.102390] ffff883f51c2bb28 0000000000000082 0000000000000000 > ffff8840662d0080 > [22635.102394] ffff883f51c2bad8 0000000000000002 00000000000122c0 > 00000000000122c0 > [22635.102397] ffff883f51c2bfd8 ffff883f51c2a000 00000000000122c0 > ffff883f51c2a000 > [22635.102400] Call Trace: > [22635.102402] [] schedule+0x64/0x66 > [22635.102405] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102407] [] rwsem_down_write_failed+0x13/0x15 > [22635.102409] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102412] [] ? down_write+0x25/0x27 > [22635.102417] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102423] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102425] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102430] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102436] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102442] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102447] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102450] [] aio_rw_vect_retry+0x85/0x18a > [22635.102452] [] ? aio_fsync+0x29/0x29 > [22635.102454] [] aio_run_iocb+0x7b/0x149 > [22635.102457] [] io_submit_one+0x199/0x1f3 > [22635.102459] [] do_io_submit+0xfa/0x271 > [22635.102461] [] ? sys_rt_sigprocmask+0x69/0xa1 > [22635.102464] [] sys_io_submit+0x10/0x12 > [22635.102466] [] system_call_fastpath+0x16/0x1b > [22635.102468] INFO: task streamRT-sa:5906 blocked for more than 120 > seconds. > [22635.102469] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102470] streamRT-sa D ffff88405fe2ca88 0 5906 5114 > 0x00000004 > [22635.102473] ffff883f51c2fb28 0000000000000082 0000000000000000 > ffff8840667f00c0 > [22635.102476] 0000000000000000 0000000000000000 00000000000122c0 > 00000000000122c0 > [22635.102479] ffff883f51c2ffd8 ffff883f51c2e000 00000000000122c0 > ffff883f51c2e000 > [22635.102482] Call Trace: > [22635.102485] [] schedule+0x64/0x66 > [22635.102487] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102489] [] rwsem_down_write_failed+0x13/0x15 > [22635.102491] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102494] [] ? down_write+0x25/0x27 > [22635.102499] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102505] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102507] [] ? _raw_spin_unlock_irq+0x27/0x32 > [22635.102512] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102518] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102524] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102529] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102532] [] aio_rw_vect_retry+0x85/0x18a > [22635.102534] [] ? aio_fsync+0x29/0x29 > [22635.102536] [] aio_run_iocb+0x7b/0x149 > [22635.102538] [] io_submit_one+0x199/0x1f3 > [22635.102541] [] do_io_submit+0xfa/0x271 > [22635.102543] [] ? sys_rt_sigprocmask+0x69/0xa1 > [22635.102545] [] sys_io_submit+0x10/0x12 > [22635.102548] [] system_call_fastpath+0x16/0x1b > [22635.102550] INFO: task streamRT-sa:5908 blocked for more than 120 > seconds. > [22635.102551] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102552] streamRT-sa D ffff88405fe2fac8 0 5908 5114 > 0x00000004 > [22635.102554] ffff883f518b3b28 0000000000000082 000000000000029c > ffff884066770040 > [22635.102558] 0000000000000006 0000000000000001 00000000000122c0 > 00000000000122c0 > [22635.102561] ffff883f518b3fd8 ffff883f518b2000 00000000000122c0 > ffff883f518b2000 > [22635.102564] Call Trace: > [22635.102566] [] schedule+0x64/0x66 > [22635.102569] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102571] [] rwsem_down_write_failed+0x13/0x15 > [22635.102573] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102575] [] ? down_write+0x25/0x27 > [22635.102581] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102586] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102589] [] ? _raw_spin_unlock_irq+0x27/0x32 > [22635.102594] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102600] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102620] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102627] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102630] [] aio_rw_vect_retry+0x85/0x18a > [22635.102637] [] ? aio_fsync+0x29/0x29 > [22635.102641] [] aio_run_iocb+0x7b/0x149 > [22635.102651] [] io_submit_one+0x199/0x1f3 > [22635.102655] [] do_io_submit+0xfa/0x271 > [22635.102661] [] sys_io_submit+0x10/0x12 > [22635.102664] [] system_call_fastpath+0x16/0x1b > [22635.102669] INFO: task streamRT-sa:5909 blocked for more than 120 > seconds. > [22635.102675] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102677] streamRT-sa D ffff88405fe2f3c8 0 5909 5114 > 0x00000004 > [22635.102683] ffff883f518b5b28 0000000000000082 00000000000000de > ffff88406663a040 > [22635.102694] 0000000000000002 0000000000000001 00000000000122c0 > 00000000000122c0 > [22635.102705] ffff883f518b5fd8 ffff883f518b4000 00000000000122c0 > ffff883f518b4000 > [22635.102719] Call Trace: > [22635.102723] [] schedule+0x64/0x66 > [22635.102729] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102734] [] rwsem_down_write_failed+0x13/0x15 > [22635.102739] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102742] [] ? down_write+0x25/0x27 > [22635.102751] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102761] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102765] [] ? _raw_spin_unlock_irq+0x27/0x32 > [22635.102773] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102781] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102788] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102798] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102801] [] aio_rw_vect_retry+0x85/0x18a > [22635.102805] [] ? aio_fsync+0x29/0x29 > [22635.102809] [] aio_run_iocb+0x7b/0x149 > [22635.102812] [] io_submit_one+0x199/0x1f3 > [22635.102815] [] do_io_submit+0xfa/0x271 > [22635.102818] [] ? sys_rt_sigprocmask+0x69/0xa1 > [22635.102824] [] sys_io_submit+0x10/0x12 > [22635.102827] [] system_call_fastpath+0x16/0x1b > [22635.102834] INFO: task streamRT-sa:5911 blocked for more than 120 > seconds. > [22635.102836] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102838] streamRT-sa D ffff883f5372c408 0 5911 5114 > 0x00000004 > [22635.102844] ffff883f5208bb28 0000000000000082 0000000000000000 > ffff884066001180 > [22635.102850] 0000000000000000 0000000000000000 00000000000122c0 > 00000000000122c0 > [22635.102861] ffff883f5208bfd8 ffff883f5208a000 00000000000122c0 > ffff883f5208a000 > [22635.102877] Call Trace: > [22635.102883] [] schedule+0x64/0x66 > [22635.102886] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102890] [] rwsem_down_write_failed+0x13/0x15 > [22635.102895] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102902] [] ? down_write+0x25/0x27 > [22635.102911] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102918] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.102924] [] ? _raw_spin_unlock_irq+0x27/0x32 > [22635.102931] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.102939] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.102947] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.102954] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.102959] [] aio_rw_vect_retry+0x85/0x18a > [22635.102962] [] ? aio_fsync+0x29/0x29 > [22635.102968] [] aio_run_iocb+0x7b/0x149 > [22635.102973] [] io_submit_one+0x199/0x1f3 > [22635.102976] [] do_io_submit+0xfa/0x271 > [22635.102980] [] ? sys_rt_sigprocmask+0x69/0xa1 > [22635.102985] [] sys_io_submit+0x10/0x12 > [22635.102989] [] system_call_fastpath+0x16/0x1b > [22635.102995] INFO: task streamRT-sa:5918 blocked for more than 120 > seconds. > [22635.102997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.103001] streamRT-sa D ffff883f53733a48 0 5918 5114 > 0x00000004 > [22635.103007] ffff884063d99b28 0000000000000082 0000000000000000 > ffff88406668b1c0 > [22635.103017] 0000000000000000 0000000000000000 00000000000122c0 > 00000000000122c0 > [22635.103029] ffff884063d99fd8 ffff884063d98000 00000000000122c0 > ffff884063d98000 > [22635.103037] Call Trace: > [22635.103042] [] schedule+0x64/0x66 > [22635.103047] [] rwsem_down_failed_common+0xdb/0x10d > [22635.103050] [] rwsem_down_write_failed+0x13/0x15 > [22635.103054] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.103058] [] ? down_write+0x25/0x27 > [22635.103065] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.103072] [] xfs_rw_ilock+0x2c/0x33 [xfs] > [22635.103076] [] ? _raw_spin_unlock_irq+0x27/0x32 > [22635.103086] [] xfs_file_aio_write_checks+0x41/0xfe > [xfs] > [22635.103092] [] xfs_file_dio_aio_write+0x103/0x1fc > [xfs] > [22635.103099] [] xfs_file_aio_write+0x152/0x1b5 [xfs] > [22635.103109] [] ? > xfs_file_buffered_aio_write+0x179/0x179 [xfs] > [22635.103113] [] aio_rw_vect_retry+0x85/0x18a > [22635.103120] [] ? aio_fsync+0x29/0x29 > [22635.103126] [] aio_run_iocb+0x7b/0x149 > [22635.103129] [] io_submit_one+0x199/0x1f3 > [22635.103134] [] do_io_submit+0xfa/0x271 > [22635.103139] [] ? sys_rt_sigprocmask+0x69/0xa1 > [22635.103142] [] sys_io_submit+0x10/0x12 > [22635.103146] [] system_call_fastpath+0x16/0x1b > > # ps -ef > UID PID PPID C STIME TTY TIME CMD > root 1 0 0 Aug25 ? 00:00:05 init [3] > root 2 0 0 Aug25 ? 00:00:00 [kthreadd] > root 3 2 0 Aug25 ? 00:00:00 [ksoftirqd/0] > root 6 2 0 Aug25 ? 00:00:00 [migration/0] > root 7 2 0 Aug25 ? 00:00:00 [rcuc/0] > root 8 2 0 Aug25 ? 00:00:00 [rcun/0] > root 9 2 0 Aug25 ? 00:00:00 [rcub/0] > root 10 2 0 Aug25 ? 00:00:00 [rcun/1] > root 11 2 0 Aug25 ? 00:00:00 [rcub/1] > root 12 2 0 Aug25 ? 00:00:00 [watchdog/0] > root 13 2 0 Aug25 ? 00:00:00 [migration/1] > root 15 2 0 Aug25 ? 00:00:00 [rcuc/1] > root 16 2 0 Aug25 ? 00:00:00 [ksoftirqd/1] > root 18 2 0 Aug25 ? 00:00:00 [watchdog/1] > root 19 2 0 Aug25 ? 00:00:00 [migration/2] > root 20 2 0 Aug25 ? 00:00:00 [kworker/2:0] > root 21 2 0 Aug25 ? 00:00:00 [rcuc/2] > root 22 2 0 Aug25 ? 00:00:00 [ksoftirqd/2] > root 23 2 0 Aug25 ? 00:00:00 [watchdog/2] > root 24 2 0 Aug25 ? 00:00:00 [migration/3] > root 26 2 0 Aug25 ? 00:00:00 [rcuc/3] > root 27 2 0 Aug25 ? 00:00:00 [ksoftirqd/3] > root 28 2 0 Aug25 ? 00:00:00 [watchdog/3] > root 29 2 0 Aug25 ? 00:00:00 [migration/4] > root 30 2 0 Aug25 ? 00:00:00 [kworker/4:0] > root 31 2 0 Aug25 ? 00:00:00 [rcuc/4] > root 32 2 0 Aug25 ? 00:00:00 [ksoftirqd/4] > root 33 2 0 Aug25 ? 00:00:00 [watchdog/4] > root 34 2 0 Aug25 ? 00:00:00 [migration/5] > root 36 2 0 Aug25 ? 00:00:00 [rcuc/5] > root 37 2 0 Aug25 ? 00:00:00 [ksoftirqd/5] > root 38 2 0 Aug25 ? 00:00:00 [watchdog/5] > root 39 2 0 Aug25 ? 00:00:00 [migration/6] > root 40 2 0 Aug25 ? 00:00:00 [kworker/6:0] > root 41 2 0 Aug25 ? 00:00:00 [rcuc/6] > root 42 2 0 Aug25 ? 00:00:00 [ksoftirqd/6] > root 43 2 0 Aug25 ? 00:00:00 [watchdog/6] > root 44 2 0 Aug25 ? 00:00:00 [migration/7] > root 45 2 0 Aug25 ? 00:00:00 [kworker/7:0] > root 46 2 0 Aug25 ? 00:00:00 [rcuc/7] > root 47 2 0 Aug25 ? 00:00:00 [ksoftirqd/7] > root 48 2 0 Aug25 ? 00:00:00 [watchdog/7] > root 49 2 0 Aug25 ? 00:00:00 [migration/8] > root 50 2 0 Aug25 ? 00:00:00 [kworker/8:0] > root 51 2 0 Aug25 ? 00:00:00 [rcuc/8] > root 52 2 0 Aug25 ? 00:00:00 [ksoftirqd/8] > root 53 2 0 Aug25 ? 00:00:00 [watchdog/8] > root 54 2 0 Aug25 ? 00:00:00 [migration/9] > root 56 2 0 Aug25 ? 00:00:00 [rcuc/9] > root 57 2 0 Aug25 ? 00:00:00 [ksoftirqd/9] > root 58 2 0 Aug25 ? 00:00:00 [watchdog/9] > root 59 2 0 Aug25 ? 00:00:00 [migration/10] > root 60 2 0 Aug25 ? 00:00:00 [kworker/10:0] > root 61 2 0 Aug25 ? 00:00:00 [rcuc/10] > root 62 2 0 Aug25 ? 00:00:00 [ksoftirqd/10] > root 63 2 0 Aug25 ? 00:00:00 [watchdog/10] > root 64 2 0 Aug25 ? 00:00:00 [migration/11] > root 66 2 0 Aug25 ? 00:00:00 [rcuc/11] > root 67 2 0 Aug25 ? 00:00:00 [ksoftirqd/11] > root 68 2 0 Aug25 ? 00:00:00 [watchdog/11] > root 69 2 0 Aug25 ? 00:00:00 [migration/12] > root 70 2 0 Aug25 ? 00:00:00 [kworker/12:0] > root 71 2 0 Aug25 ? 00:00:00 [rcuc/12] > root 72 2 0 Aug25 ? 00:00:00 [ksoftirqd/12] > root 73 2 0 Aug25 ? 00:00:00 [watchdog/12] > root 74 2 0 Aug25 ? 00:00:00 [migration/13] > root 76 2 0 Aug25 ? 00:00:00 [rcuc/13] > root 77 2 0 Aug25 ? 00:00:00 [ksoftirqd/13] > root 78 2 0 Aug25 ? 00:00:00 [watchdog/13] > root 79 2 0 Aug25 ? 00:00:00 [migration/14] > root 80 2 0 Aug25 ? 00:00:00 [kworker/14:0] > root 81 2 0 Aug25 ? 00:00:00 [rcuc/14] > root 82 2 0 Aug25 ? 00:00:00 [ksoftirqd/14] > root 83 2 0 Aug25 ? 00:00:00 [watchdog/14] > root 84 2 0 Aug25 ? 00:00:00 [migration/15] > root 86 2 0 Aug25 ? 00:00:00 [rcuc/15] > root 87 2 0 Aug25 ? 00:00:00 [ksoftirqd/15] > root 88 2 0 Aug25 ? 00:00:00 [watchdog/15] > root 89 2 0 Aug25 ? 00:00:00 [migration/16] > root 90 2 0 Aug25 ? 00:00:00 [kworker/16:0] > root 91 2 0 Aug25 ? 00:00:00 [rcuc/16] > root 92 2 0 Aug25 ? 00:00:00 [rcun/2] > root 93 2 0 Aug25 ? 00:00:00 [rcub/2] > root 94 2 0 Aug25 ? 00:00:00 [ksoftirqd/16] > root 95 2 0 Aug25 ? 00:00:00 [watchdog/16] > root 96 2 0 Aug25 ? 00:00:00 [migration/17] > root 98 2 0 Aug25 ? 00:00:00 [rcuc/17] > root 99 2 0 Aug25 ? 00:00:00 [ksoftirqd/17] > root 100 2 0 Aug25 ? 00:00:00 [watchdog/17] > root 101 2 0 Aug25 ? 00:00:00 [migration/18] > root 102 2 0 Aug25 ? 00:00:00 [kworker/18:0] > root 103 2 0 Aug25 ? 00:00:00 [rcuc/18] > root 104 2 0 Aug25 ? 00:00:00 [ksoftirqd/18] > root 105 2 0 Aug25 ? 00:00:00 [watchdog/18] > root 106 2 0 Aug25 ? 00:00:00 [migration/19] > root 107 2 0 Aug25 ? 00:00:00 [kworker/19:0] > root 108 2 0 Aug25 ? 00:00:00 [rcuc/19] > root 109 2 0 Aug25 ? 00:00:00 [ksoftirqd/19] > root 110 2 0 Aug25 ? 00:00:00 [watchdog/19] > root 111 2 0 Aug25 ? 00:00:00 [migration/20] > root 112 2 0 Aug25 ? 00:00:00 [kworker/20:0] > root 113 2 0 Aug25 ? 00:00:00 [rcuc/20] > root 114 2 0 Aug25 ? 00:00:00 [ksoftirqd/20] > root 115 2 0 Aug25 ? 00:00:00 [watchdog/20] > root 116 2 0 Aug25 ? 00:00:00 [migration/21] > root 117 2 0 Aug25 ? 00:00:00 [kworker/21:0] > root 118 2 0 Aug25 ? 00:00:00 [rcuc/21] > root 119 2 0 Aug25 ? 00:00:00 [ksoftirqd/21] > root 120 2 0 Aug25 ? 00:00:00 [watchdog/21] > root 121 2 0 Aug25 ? 00:00:00 [migration/22] > root 122 2 0 Aug25 ? 00:00:00 [kworker/22:0] > root 123 2 0 Aug25 ? 00:00:00 [rcuc/22] > root 124 2 0 Aug25 ? 00:00:00 [ksoftirqd/22] > root 125 2 0 Aug25 ? 00:00:00 [watchdog/22] > root 126 2 0 Aug25 ? 00:00:00 [migration/23] > root 128 2 0 Aug25 ? 00:00:00 [rcuc/23] > root 129 2 0 Aug25 ? 00:00:00 [ksoftirqd/23] > root 130 2 0 Aug25 ? 00:00:00 [watchdog/23] > root 131 2 0 Aug25 ? 00:00:00 [migration/24] > root 132 2 0 Aug25 ? 00:00:00 [kworker/24:0] > root 133 2 0 Aug25 ? 00:00:00 [rcuc/24] > root 134 2 0 Aug25 ? 00:00:00 [ksoftirqd/24] > root 135 2 0 Aug25 ? 00:00:00 [watchdog/24] > root 136 2 0 Aug25 ? 00:00:00 [migration/25] > root 138 2 0 Aug25 ? 00:00:00 [rcuc/25] > root 139 2 0 Aug25 ? 00:00:00 [ksoftirqd/25] > root 140 2 0 Aug25 ? 00:00:00 [watchdog/25] > root 141 2 0 Aug25 ? 00:00:00 [migration/26] > root 142 2 0 Aug25 ? 00:00:00 [kworker/26:0] > root 143 2 0 Aug25 ? 00:00:00 [rcuc/26] > root 144 2 0 Aug25 ? 00:00:00 [ksoftirqd/26] > root 145 2 0 Aug25 ? 00:00:00 [watchdog/26] > root 146 2 0 Aug25 ? 00:00:00 [migration/27] > root 147 2 0 Aug25 ? 00:00:00 [kworker/27:0] > root 148 2 0 Aug25 ? 00:00:00 [rcuc/27] > root 149 2 0 Aug25 ? 00:00:00 [ksoftirqd/27] > root 150 2 0 Aug25 ? 00:00:00 [watchdog/27] > root 151 2 0 Aug25 ? 00:00:00 [migration/28] > root 152 2 0 Aug25 ? 00:00:00 [kworker/28:0] > root 153 2 0 Aug25 ? 00:00:00 [rcuc/28] > root 154 2 0 Aug25 ? 00:00:00 [ksoftirqd/28] > root 155 2 0 Aug25 ? 00:00:00 [watchdog/28] > root 156 2 0 Aug25 ? 00:00:00 [migration/29] > root 157 2 0 Aug25 ? 00:00:00 [kworker/29:0] > root 158 2 0 Aug25 ? 00:00:00 [rcuc/29] > root 159 2 0 Aug25 ? 00:00:00 [ksoftirqd/29] > root 160 2 0 Aug25 ? 00:00:00 [watchdog/29] > root 161 2 0 Aug25 ? 00:00:00 [migration/30] > root 162 2 0 Aug25 ? 00:00:00 [kworker/30:0] > root 163 2 0 Aug25 ? 00:00:00 [rcuc/30] > root 164 2 0 Aug25 ? 00:00:00 [ksoftirqd/30] > root 165 2 0 Aug25 ? 00:00:00 [watchdog/30] > root 166 2 0 Aug25 ? 00:00:00 [migration/31] > root 167 2 0 Aug25 ? 00:00:00 [kworker/31:0] > root 168 2 0 Aug25 ? 00:00:00 [rcuc/31] > root 169 2 0 Aug25 ? 00:00:00 [ksoftirqd/31] > root 170 2 0 Aug25 ? 00:00:00 [watchdog/31] > root 171 2 0 Aug25 ? 00:00:00 [cpuset] > root 172 2 0 Aug25 ? 00:00:00 [khelper] > root 173 2 0 Aug25 ? 00:00:00 [netns] > root 418 2 0 Aug25 ? 00:00:00 [sync_supers] > root 420 2 0 Aug25 ? 00:00:00 [bdi-default] > root 422 2 0 Aug25 ? 00:00:00 [kblockd] > root 714 2 0 Aug25 ? 00:00:00 [ata_sff] > root 724 2 0 Aug25 ? 00:00:00 [khubd] > root 733 2 0 Aug25 ? 00:00:00 [kworker/30:1] > root 735 2 0 Aug25 ? 00:00:00 [kworker/28:1] > root 737 2 0 Aug25 ? 00:00:00 [kworker/26:1] > root 739 2 0 Aug25 ? 00:00:00 [kworker/24:1] > root 741 2 0 Aug25 ? 00:00:00 [kworker/22:1] > root 743 2 0 Aug25 ? 00:00:00 [kworker/20:1] > root 745 2 0 Aug25 ? 00:00:00 [kworker/18:1] > root 747 2 0 Aug25 ? 00:00:00 [kworker/16:1] > root 749 2 0 Aug25 ? 00:00:00 [kworker/14:1] > root 751 2 0 Aug25 ? 00:00:00 [kworker/12:1] > root 757 2 0 Aug25 ? 00:00:00 [kworker/10:1] > root 759 2 0 Aug25 ? 00:00:00 [kworker/8:1] > root 761 2 0 Aug25 ? 00:00:00 [kworker/6:1] > root 763 2 0 Aug25 ? 00:00:00 [kworker/4:1] > root 866 2 0 Aug25 ? 00:00:00 [rpciod] > root 868 2 0 Aug25 ? 00:00:00 [kworker/2:1] > root 975 2 0 Aug25 ? 00:00:00 [khungtaskd] > root 981 2 0 Aug25 ? 00:00:00 [kswapd0] > root 982 2 0 Aug25 ? 00:00:00 [khugepaged] > root 983 2 0 Aug25 ? 00:00:00 [fsnotify_mark] > root 984 2 0 Aug25 ? 00:00:00 [nfsiod] > root 986 2 0 Aug25 ? 00:00:00 [crypto] > root 1151 2 0 Aug25 ? 00:00:00 [kpsmoused] > root 1167 2 0 Aug25 ? 00:00:00 [deferwq] > root 1913 2 0 Aug25 ? 00:00:00 [bond0] > root 2144 1 0 Aug25 ? 00:00:00 udevd --daemon > root 2525 2 0 Aug25 ? 00:00:00 [scsi_eh_0] > root 2537 2 0 Aug25 ? 00:00:00 [mlx4] > root 2540 2 0 Aug25 ? 00:00:00 [scsi_eh_1] > root 2541 2 0 Aug25 ? 00:00:00 [fw_event0] > root 2595 2 0 Aug25 ? 00:00:00 [scsi_eh_2] > root 2596 2 0 Aug25 ? 00:00:00 [scsi_eh_3] > root 2597 2 0 Aug25 ? 00:00:00 [scsi_eh_4] > root 2598 2 0 Aug25 ? 00:00:00 [scsi_eh_5] > root 2599 2 0 Aug25 ? 00:00:00 [scsi_eh_6] > root 2600 2 0 Aug25 ? 00:00:00 [scsi_eh_7] > root 2667 2 0 Aug25 ? 00:00:00 [mlx4_en] > root 2797 2144 0 Aug25 ? 00:00:00 udevd --daemon > root 2798 2144 0 Aug25 ? 00:00:00 udevd --daemon > root 2800 2 0 Aug25 ? 00:00:00 [mlx4_en] > root 2817 2 0 Aug25 ? 00:00:00 [mlx4_en] > root 2843 2 0 Aug25 ? 00:00:00 [poll_0_status] > root 2844 2 0 Aug25 ? 00:00:00 [scsi_eh_8] > root 2846 2 0 Aug25 ? 00:00:00 [fw_event1] > root 2860 2 0 Aug25 ? 00:00:00 [poll_1_status] > root 2861 2 0 Aug25 ? 00:00:00 [scsi_eh_9] > root 2862 2 0 Aug25 ? 00:00:00 [fw_event2] > root 2864 2 0 Aug25 ? 00:00:00 [poll_2_status] > root 2865 2 0 Aug25 ? 00:00:00 [scsi_eh_10] > root 2866 2 0 Aug25 ? 00:00:00 [fw_event3] > root 2867 2 0 Aug25 ? 00:00:00 [poll_3_status] > root 4059 2 0 Aug25 ? 00:00:00 [bond1] > root 4464 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4470 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4476 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4482 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4488 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4494 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4500 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4506 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4512 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4518 2 0 Aug25 ? 00:00:00 [kdmflush] > root 4527 2 0 Aug25 ? 00:00:00 [jbd2/dm-4-8] > root 4528 2 0 Aug25 ? 00:00:00 [ext4-dio-unwrit] > root 4593 1 0 Aug25 ? 00:00:00 /usr/sbin/rsyslogd -c5 > root 4627 1 0 Aug25 ? 00:00:00 /usr/sbin/sshd > root 4645 1 0 Aug25 ? 00:00:00 /usr/sbin/acpid > root 4683 1 0 Aug25 ? 00:00:00 /usr/sbin/cron > ntp 4713 1 0 Aug25 ? 00:00:00 /usr/sbin/ntpd -g -c > /etc/ntp.conf -p /var/run/ntpd.pid -u ntp:ntp > daemon 4747 1 0 Aug25 ? 00:00:00 /sbin/portmap > root 4773 1 0 Aug25 ? 00:00:00 /sbin/rpc.statd > root 4796 1 0 Aug25 ttyS0 00:00:00 /sbin/getty -L 115200 > ttyS0 vt100 > root 4797 1 0 Aug25 ? 00:00:22 initBC > > root 4908 2 0 Aug25 ? 00:00:00 [xfsalloc] > root 4909 2 0 Aug25 ? 00:00:00 [xfs_mru_cache] > root 4910 2 0 Aug25 ? 00:00:00 [xfslogd] > root 4930 2 0 Aug25 ? 00:00:00 [xfsbufd/sdc] > root 4931 2 0 Aug25 ? 00:00:00 [xfs-data/sdc] > root 4932 2 0 Aug25 ? 00:00:00 [xfs-conv/sdc] > root 4933 2 0 Aug25 ? 00:00:01 [xfsaild/sdc] > root 4935 2 0 Aug25 ? 00:00:00 [xfsbufd/sdd] > root 4936 2 0 Aug25 ? 00:00:00 [xfs-data/sdd] > root 4937 2 0 Aug25 ? 00:00:00 [xfs-conv/sdd] > root 4938 2 0 Aug25 ? 00:00:01 [xfsaild/sdd] > root 5115 1 6 Aug25 ? 00:11:28 [streamRT-sa] > root 6582 2 0 Aug25 ? 00:00:00 [kworker/1:2] > root 6633 2 0 Aug25 ? 00:00:00 [kworker/23:1] > root 6636 2 0 Aug25 ? 00:00:00 [kworker/15:0] > root 6640 2 0 Aug25 ? 00:00:00 [kworker/29:2] > root 6647 2 0 Aug25 ? 00:00:00 [kworker/3:1] > root 6649 2 0 Aug25 ? 00:00:00 [kworker/25:2] > root 6654 2 0 Aug25 ? 00:00:00 [kworker/1:0] > root 6658 2 0 Aug25 ? 00:00:00 [kworker/19:1] > root 6659 2 0 Aug25 ? 00:00:00 [kworker/21:1] > root 6661 2 0 Aug25 ? 00:00:00 [kworker/27:2] > root 6662 2 0 Aug25 ? 00:00:00 [kworker/15:2] > root 6663 2 0 Aug25 ? 00:00:00 [kworker/5:2] > root 6666 2 0 Aug25 ? 00:00:00 [kworker/31:2] > root 6671 2 0 Aug25 ? 00:00:00 [kworker/0:4] > root 6673 2 0 Aug25 ? 00:00:00 [kworker/7:3] > root 6677 2 0 Aug25 ? 00:00:00 [kworker/0:6] > root 6678 2 0 Aug25 ? 00:00:00 [kworker/0:7] > root 6681 2 0 Aug25 ? 00:00:00 [kworker/0:10] > root 6684 2 0 Aug25 ? 00:00:00 [kworker/13:5] > root 6690 2 0 Aug25 ? 00:00:00 [kworker/9:4] > root 6695 2 0 Aug25 ? 00:00:00 [kworker/7:5] > root 6696 2 0 Aug25 ? 00:00:00 [kworker/13:7] > root 6697 2 0 Aug25 ? 00:00:00 [kworker/9:6] > root 6702 2 0 Aug25 ? 00:00:00 [kworker/0:11] > root 6705 2 0 Aug25 ? 00:00:00 [kworker/0:14] > root 6707 2 0 Aug25 ? 00:00:00 [kworker/0:16] > root 6719 2 0 Aug25 ? 00:00:00 [kworker/0:24] > root 6721 2 0 Aug25 ? 00:00:00 [kworker/0:26] > root 6723 2 0 Aug25 ? 00:00:00 [kworker/9:8] > root 6726 2 0 Aug25 ? 00:00:00 [kworker/31:5] > root 6731 2 0 Aug25 ? 00:00:00 [kworker/1:7] > root 6734 2 0 Aug25 ? 00:00:00 [kworker/11:6] > root 6736 2 0 Aug25 ? 00:00:00 [kworker/13:10] > root 6740 2 0 Aug25 ? 00:00:00 [kworker/0:30] > root 6741 2 0 Aug25 ? 00:00:00 [kworker/0:31] > root 6745 2 0 Aug25 ? 00:00:00 [kworker/9:9] > root 6748 2 0 Aug25 ? 00:00:00 [kworker/0:36] > root 6749 2 0 Aug25 ? 00:00:00 [kworker/19:3] > root 6753 2 0 Aug25 ? 00:00:00 [kworker/23:3] > root 6757 2 0 Aug25 ? 00:00:00 [kworker/13:12] > root 6758 2 0 Aug25 ? 00:00:00 [kworker/7:6] > root 6761 2 0 Aug25 ? 00:00:00 [kworker/0:41] > root 6767 2 0 Aug25 ? 00:00:00 [kworker/0:44] > root 6768 2 0 Aug25 ? 00:00:00 [kworker/5:7] > root 6769 2 0 Aug25 ? 00:00:00 [kworker/1:9] > root 6770 2 0 Aug25 ? 00:00:00 [kworker/0:45] > root 6774 2 0 Aug25 ? 00:00:00 [kworker/17:7] > root 6776 2 0 Aug25 ? 00:00:00 [kworker/3:4] > root 6779 2 0 Aug25 ? 00:00:00 [kworker/11:9] > root 6781 2 0 Aug25 ? 00:00:00 [kworker/0:50] > root 6787 2 0 Aug25 ? 00:00:00 [kworker/0:53] > root 6788 2 0 Aug25 ? 00:00:00 [kworker/25:1] > root 6793 2 0 Aug25 ? 00:00:00 [kworker/1:10] > root 6795 2 0 Aug25 ? 00:00:00 [kworker/27:4] > root 6797 2 0 Aug25 ? 00:00:00 [kworker/0:57] > root 6798 2 0 Aug25 ? 00:00:00 [kworker/0:58] > root 6806 2 0 Aug25 ? 00:00:00 [kworker/15:5] > root 6807 2 0 Aug25 ? 00:00:00 [kworker/0:62] > root 6808 2 0 Aug25 ? 00:00:00 [kworker/0:63] > root 6809 2 0 Aug25 ? 00:00:00 [kworker/17:8] > root 6814 2 0 Aug25 ? 00:00:00 [kworker/0:66] > root 6815 2 0 Aug25 ? 00:00:01 [kworker/0:67] > root 6819 2 0 Aug25 ? 00:00:00 [kworker/0:69] > root 6824 2 0 Aug25 ? 00:00:00 [kworker/25:3] > root 6895 2 0 00:20 ? 00:00:00 [kworker/u:0] > root 6900 2 0 00:26 ? 00:00:00 [kworker/u:1] > root 6904 2 0 00:57 ? 00:00:00 [flush-0:20] > root 6933 2 0 01:00 ? 00:00:00 [kworker/u:2] > root 6934 4627 0 01:02 ? 00:00:00 sshd: iris [priv] > iris 6936 6934 0 01:02 ? 00:00:00 sshd: iris@pts/1 > iris 6937 6936 0 01:02 pts/1 00:00:00 -bash > root 6967 6937 0 01:02 pts/1 00:00:00 sudo su > root 6968 6967 0 01:02 pts/1 00:00:00 su > root 6969 6968 0 01:02 pts/1 00:00:00 bash > root 6976 6969 0 01:04 pts/1 00:00:00 ps -ef > > # lsof|grep stream > lsof: WARNING: can't stat() xfs file system /mnt/VOL1 > Output information may be incomplete. > bash 6937 iris cwd DIR 0,20 4096 > 2113547 /iris/home/adrian/streamRT (mbc:/iris) > sudo 6967 root cwd DIR 0,20 4096 > 2113547 /iris/home/adrian/streamRT (mbc:/iris) > su 6968 root cwd DIR 0,20 4096 > 2113547 /iris/home/adrian/streamRT (mbc:/iris) > bash 6969 root cwd DIR 0,20 4096 > 2113547 /iris/home/adrian/streamRT (mbc:/iris) -- Stan From david@fromorbit.com Tue Aug 26 02:54:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C028C7F3F for ; Tue, 26 Aug 2014 02:54:18 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id BC65D304032 for ; Tue, 26 Aug 2014 00:54:08 -0700 (PDT) X-ASG-Debug-ID: 1409039630-04cbb054857ff850001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id PofId8CP0LHWYhqS for ; Tue, 26 Aug 2014 00:53:51 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmQTADI8/FN5LDJ8PGdsb2JhbABagw2BKoczp3YBAQEBBqRuAYETFwUBAQEBODaEBAEFOhwjEAgDGAklDwUlAwcaE4hBviwXGIVkiQdJB4RMBZxIlnEegW4rL4EHgUgBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 26 Aug 2014 17:23:48 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMBZZ-0001Cw-Dn; Tue, 26 Aug 2014 17:53:45 +1000 Date: Tue, 26 Aug 2014 17:53:45 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140826075345.GJ20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409039630 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8840 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 26, 2014 at 01:18:50AM -0500, Stan Hoeppner wrote: > Had some controller issues but believe we had those ironed out before this > recent breakage. I had reformatted both 48TB LUNs on this test box with -f > and defaults, and fired up the test app again. Throughput was fantastic > with no dropped application buffers for ~30 minutes, and IO times were 1.x > ms max, suggesting all the writes were acked by controller cache. The app > was running perfectly. Then it hanged and spit out an internal error msg: > > > Failed to reopen file /mnt/VOL1/sg-04/str-0015/f-0000000005 > > I have many call traces in dmesg, most are XFS, pasted below. I found no > SCSI I/O errors in dmesg. Application is submitting writes via libaio and > using O_DIRECT, writing to preallocated files. I don't see any errors in > the storage controller log and everything seems to check out there. Using > noop elevator, mpt2sas, no multipathing. The application process is hung > in d state and kill -9 won't get rid of it. I can't unmount the hosed up > filesystem. Any ideas? > > # ls -la /mnt/VOL1 > ls: cannot access /mnt/VOL1: Input/output error > > # dd if=/mnt/VOL1 of=/dev/null bs=1M count=16 > dd: opening `/mnt/VOL1': Input/output error > > # dd if=/dev/sdd of=/dev/null bs=1M count=16 > 16+0 records in > 16+0 records out > 16777216 bytes (17 MB) copied, 1.10989 s, 15.1 MB/s > > # ls -la /mnt/ > ls: cannot access /mnt/VOL1: Input/output error > total 8 > drwxrwxrwt 6 root root 120 Aug 25 17:59 . > drwxr-xr-x 21 root root 4096 Jul 15 09:39 .. > drwxrwxrwt 3 root root 80 Aug 25 16:52 initramfs > drwxr-xr-x 3 root root 4096 Apr 24 04:57 scratch > drwxrwxrwx 5 root root 58 Aug 25 22:06 VOL0 > d????????? ? ? ? ? ? VOL1 That's an inode we failed to stat() - most likely because of the IO error. Has the filesystem shut down? the IO error shoul dhave had some kind of output in dmesg associated with it from XFS.... > [22635.102013] INFO: task kworker/7:0:45 blocked for more than 120 > seconds. > [22635.102016] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables > this message. > [22635.102018] kworker/7:0 D ffff8840666c0b08 0 45 2 > 0x00000000 > [22635.102021] ffff8840666e7bd0 0000000000000046 ffff883f7c02d000 > ffff8840666f5180 > [22635.102026] ffff8840666e7b80 0000000000000206 00000000000122c0 > 00000000000122c0 > [22635.102030] ffff8840666e7fd8 ffff8840666e6000 00000000000122c0 > ffff8840666e6000 > [22635.102033] Call Trace: > [22635.102041] [] schedule+0x64/0x66 > [22635.102044] [] rwsem_down_failed_common+0xdb/0x10d > [22635.102047] [] rwsem_down_write_failed+0x13/0x15 > [22635.102051] [] > call_rwsem_down_write_failed+0x13/0x20 > [22635.102055] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102058] [] ? down_write+0x25/0x27 > [22635.102070] [] xfs_ilock+0x4f/0xb4 [xfs] > [22635.102077] [] xfs_iomap_write_unwritten+0x1b3/0x32e > [xfs] > [22635.102080] [] ? > _raw_spin_unlock_irqrestore+0x30/0x3d > [22635.102084] [] ? xfs_setfilesize+0x128/0x128 [xfs] > [22635.102088] [] ? mempool_free+0x73/0x78 > [22635.102093] [] ? xfs_setfilesize+0x128/0x128 [xfs] > [22635.102098] [] xfs_end_io+0x89/0xb4 [xfs] > [22635.102102] [] process_one_work+0x204/0x327 > [22635.102105] [] worker_thread+0x13b/0x25a > [22635.102108] [] ? process_one_work+0x327/0x327 > [22635.102111] [] kthread+0x89/0x91 > [22635.102115] [] kernel_thread_helper+0x4/0x10 > [22635.102118] [] ? __init_kthread_worker+0x3c/0x3c > [22635.102120] [] ? gs_change+0xb/0xb That's stuck on a an inode lock. That reminds of a problem we had in RHEL6 with highly concurrent direct IO. The rwsems were buggy, and XFS was tripping over the bug and hanging just like this. If the filesystem is not shutting down and causing that IO error due to a shutdown state, then it's entirely possible we've got another rwsem issue. Now I've just got to go find the RHEL 6 problem again. Ah: 91af708 rwsem: Test for no active locks in __rwsem_do_wake undo code But that was fixed in 2.6.34 (rhel 6 was based on 2.6.32), so I doubt that is your problem. However, it smells almost exactly the same - it took about an hour of highly concurrent direct IO to SSDs to trigger, and Lachlan ended up finding the right incantation of lock debug code inside the xfs mrlock implementation to prove that it was an rwsem bug and not an XFS locking issue. Are you able to take crash dumps from this machine so you can dig around inside the XFS inode and rwsem states when the system locks up like this? One thing in the RH bug that was suggested as a simply test to determine if there's a problem with the rwsems is to edit the kernel configin arch/x86/Kconfig: Change: config RWSEM_GENERIC_SPINLOCK def_bool !X86_ADD config RWSEM_XCHGADD_ALGORITHM def_bool X86_ADD to: config RWSEM_GENERIC_SPINLOCK def_bool y config RWSEM_XCHGADD_ALGORITHM def_bool n I haven't cheked if this still works on a 3.4 kernel, but it will change the rwsem implementation to the generic, spinlock based implementation rather than the super-special, highly optimised x86 specific implementation. If that makes the problem go away, then we've got another rwsem bug on our hands. If it doesn't, then I can probably get you the mrlock debug code lachlan wrote and we can see if XFS is doing something wrong... Cheers, Dave. -- Dave Chinner david@fromorbit.com From zhangqiang.buaa@gmail.com Tue Aug 26 05:05:00 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 929067F3F for ; Tue, 26 Aug 2014 05:05:00 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4ABB18F8033 for ; Tue, 26 Aug 2014 03:05:00 -0700 (PDT) X-ASG-Debug-ID: 1409047493-04bdf0109a50b130001-NocioJ Received: from mail-la0-f49.google.com (mail-la0-f49.google.com [209.85.215.49]) by cuda.sgi.com with ESMTP id G22gXskEzwcW8lD0 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Tue, 26 Aug 2014 03:04:54 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.215.49 X-Barracuda-IPDD: Level1 [gmail.com/209.85.215.49] Received: by mail-la0-f49.google.com with SMTP id hz20so14489866lab.22 for ; Tue, 26 Aug 2014 03:04:52 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.215.49] X-Barracuda-IPDD: Level1 [gmail.com/209.85.215.49] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=sNpXNANNgntmWdbBTWMb96jF3yCEqMpcLyy5STLa29o=; b=RM4UoqTq/tqInPHUebEVSvIryj6VFnvJ/kx2rF9DF1gp6idVKnGebFJ4D8ySTvns2d 9FsKqdadpJIcXPMo4DATD/e5RgoiEITPXnn53fHt0ISwmcFURccNEX6yrjppTqzlbco2 fSUzWLmIsnPV8aVPcgnVbt0+g1UbIG5Ve+eW3kk/tDliyzQY3jLgR0/LDD9+U8DUCpwu n6P1JwsKf01zGSRS8S4tCFdqFFys0Lc7okxNX4W02yS+1mnn5lIpAyvjwGpqzT6AErYt OgpHZif2ba9tPh8VE6BUIP6GUls9JBAQRfFalAQuNXllO2zIVU8kSX9z9hs2ldQM/aQs 2J3w== MIME-Version: 1.0 X-Received: by 10.153.5.38 with SMTP id cj6mr10880244lad.34.1409047492784; Tue, 26 Aug 2014 03:04:52 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Tue, 26 Aug 2014 03:04:52 -0700 (PDT) In-Reply-To: <20140826023754.GH20518@dastard> References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> <20140825222657.GF20518@dastard> <20140826023754.GH20518@dastard> Date: Tue, 26 Aug 2014 18:04:52 +0800 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system To: Dave Chinner Cc: Greg Freemyer , xfs-oss Content-Type: multipart/alternative; boundary=001a1133b07047794b0501856f4a X-Barracuda-Connect: mail-la0-f49.google.com[209.85.215.49] X-Barracuda-Start-Time: 1409047494 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085, DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8842 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message 0.10 BSF_SC0_SA085 Custom Rule SA085 --001a1133b07047794b0501856f4a Content-Type: text/plain; charset=UTF-8 Thanks Dave/Greg for your analysis and suggestions. I can summarize what I should do next: - backup my data using xfsdump - rebuilt filesystem using mkfs with options: agcount=32 for 2T disk - mount filesystem with option inode64,nobarrier - applied patches about adding free list inode on disk structure As we have about ~100 servers need back up, so that will take much effort, do you have any other suggestion? What I am testing (ongoing): - created a new 2T partition filesystem - try to create small files and fill whole spaces then remove some of them randomly - check the performance of touch/cp files - apply patches and verify it. I have got more data from server: 1) flush all cache(echo 3 > /proc/sys/vm/drop_caches), and umount filesystem 2) mount filesystem and testing with touch command * The first touch new file command take about ~23s * second touch command take about ~0.1s. Here's the perf data: First touch command: Events: 435 cycles + 7.51% touch [xfs] [k] xfs_inobt_get_rec + 5.61% touch [xfs] [k] xfs_btree_get_block + 5.38% touch [xfs] [k] xfs_btree_increment + 4.26% touch [xfs] [k] xfs_btree_get_rec + 3.73% touch [kernel.kallsyms] [k] find_busiest_group + 3.43% touch [xfs] [k] _xfs_buf_find + 2.72% touch [xfs] [k] xfs_btree_readahead + 2.38% touch [xfs] [k] xfs_trans_buf_item_match + 2.34% touch [xfs] [k] xfs_dialloc + 2.32% touch [kernel.kallsyms] [k] generic_make_request + 2.09% touch [xfs] [k] xfs_btree_rec_offset + 1.75% touch [kernel.kallsyms] [k] kmem_cache_alloc + 1.63% touch [kernel.kallsyms] [k] cpumask_next_and + 1.41% touch [sd_mod] [k] sd_prep_fn + 1.41% touch [kernel.kallsyms] [k] get_page_from_freelist + 1.38% touch [kernel.kallsyms] [k] __alloc_pages_nodemask + 1.27% touch [kernel.kallsyms] [k] scsi_request_fn + 1.22% touch [kernel.kallsyms] [k] blk_queue_bounce + 1.20% touch [kernel.kallsyms] [k] cfq_should_idle + 1.10% touch [xfs] [k] xfs_btree_rec_addr + 1.03% touch [kernel.kallsyms] [k] cfq_dispatch_requests+ 1.00% touch [kernel.kallsyms] [k] _spin_lock_irqsave+ 0.94% touch [kernel.kallsyms] [k] memcpy+ 0.86% touch [kernel.kallsyms] [k] swiotlb_map_sg_attrs+ 0.84% touch [kernel.kallsyms] [k] alloc_pages_current + 0.82% touch [kernel.kallsyms] [k] submit_bio + 0.81% touch [megaraid_sas] [k] megasas_build_and_issue_cmd_fusion + 0.77% touch [kernel.kallsyms] [k] blk_peek_request + 0.73% touch [xfs] [k] xfs_btree_setbuf + 0.73% touch [megaraid_sas] [k] MR_GetPhyParams + 0.73% touch [kernel.kallsyms] [k] run_timer_softirq + 0.71% touch [kernel.kallsyms] [k] pick_next_task_rt + 0.71% touch [kernel.kallsyms] [k] init_request_from_bio + 0.70% touch [kernel.kallsyms] [k] thread_return + 0.69% touch [kernel.kallsyms] [k] cfq_set_request + 0.67% touch [kernel.kallsyms] [k] mempool_alloc + 0.66% touch [xfs] [k] xfs_buf_hold + 0.66% touch [kernel.kallsyms] [k] find_next_bit + 0.62% touch [kernel.kallsyms] [k] cfq_insert_request + 0.61% touch [kernel.kallsyms] [k] scsi_init_io + 0.60% touch [megaraid_sas] [k] MR_BuildRaidContext + 0.59% touch [kernel.kallsyms] [k] policy_zonelist + 0.59% touch [kernel.kallsyms] [k] elv_insert + 0.58% touch [xfs] [k] xfs_buf_allocate_memory Second perf command: Events: 105 cycles + 20.92% touch [xfs] [k] xfs_inobt_get_rec + 14.27% touch [xfs] [k] xfs_btree_get_rec + 12.21% touch [xfs] [k] xfs_btree_get_block + 12.12% touch [xfs] [k] xfs_btree_increment + 9.86% touch [xfs] [k] xfs_btree_readahead + 7.87% touch [xfs] [k] _xfs_buf_find + 4.93% touch [xfs] [k] xfs_btree_rec_addr + 4.12% touch [xfs] [k] xfs_dialloc + 3.03% touch [kernel.kallsyms] [k] clear_page_c + 2.96% touch [xfs] [k] xfs_btree_rec_offset + 1.31% touch [kernel.kallsyms] [k] kmem_cache_free + 1.03% touch [xfs] [k] xfs_trans_buf_item_match + 0.99% touch [kernel.kallsyms] [k] _atomic_dec_and_lock + 0.99% touch [xfs] [k] xfs_inobt_get_maxrecs + 0.99% touch [xfs] [k] xfs_buf_unlock + 0.99% touch [xfs] [k] kmem_zone_alloc + 0.98% touch [kernel.kallsyms] [k] kmem_cache_alloc + 0.28% touch [kernel.kallsyms] [k] pgd_alloc + 0.17% touch [kernel.kallsyms] [k] page_fault + 0.01% touch [kernel.kallsyms] [k] native_write_msr_safe I have compared the memory used, it seems that xfs try to load inode bmap block for the first time, which take much time, is that the reason to take so much time for the first touch operation? Thanks Qiang 2014-08-26 10:37 GMT+08:00 Dave Chinner : > On Mon, Aug 25, 2014 at 06:46:31PM -0400, Greg Freemyer wrote: > > On Mon, Aug 25, 2014 at 6:26 PM, Dave Chinner > wrote: > > > On Mon, Aug 25, 2014 at 06:31:10PM +0800, Zhang Qiang wrote: > > >> 2014-08-25 17:08 GMT+08:00 Dave Chinner : > > >> > > >> > On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wrote: > > >> > > I have checked icount and ifree, but I found there are about 11.8 > percent > > >> > > free, so the free inode should not be too few. > > >> > > > > >> > > Here's the detail log, any new clue? > > >> > > > > >> > > # mount /dev/sda4 /data1/ > > >> > > # xfs_info /data1/ > > >> > > meta-data=/dev/sda4 isize=256 agcount=4, > agsize=142272384 > > >> > > > >> > 4 AGs > > >> > > > >> Yes. > > >> > > >> > > > >> > > icount = 220619904 > > >> > > ifree = 26202919 > > >> > > > >> > And 220 million inodes. There's your problem - that's an average > > >> > of 55 million inodes per AGI btree assuming you are using inode64. > > >> > If you are using inode32, then the inodes will be in 2 btrees, or > > >> > maybe even only one. > > >> > > > >> > > >> You are right, all inodes stay on one AG. > > >> > > >> BTW, why i allocate 4 AGs, and all inodes stay in one AG for inode32?, > > > > > > Because the top addresses in the 2nd AG go over 32 bits, hence only > > > AG 0 can be used for inodes. Changing to inode64 will give you some > > > relief, but any time allocation occurs in AG0 is will be slow. i.e. > > > you'll be trading always slow for "unpredictably slow". > > > > > >> > With that many inodes, I'd be considering moving to 32 or 64 AGs to > > >> > keep the btree size down to a more manageable size. The free inode > > >> > > >> btree would also help, but, really, 220M inodes in a 2TB filesystem > > >> > is really pushing the boundaries of sanity..... > > >> > > > >> > > >> So the better inodes size in one AG is about 5M, > > > > > > Not necessarily. But for your storage it's almost certainly going to > > > minimise the problem you are seeing. > > > > > >> is there any documents > > >> about these options I can learn more? > > > > > > http://xfs.org/index.php/XFS_Papers_and_Documentation > > > > Given the apparently huge number of small files would he likely see a > > big performance increase if he replaced that 2TB or rust with SSD. > > Doubt it - the profiles showed the allocation being CPU bound > searching the metadata that indexes all those inodes. Those same > profiles showed all the signs that it was hitting the buffer > cache most of the time, too, which is why it was CPU bound.... > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > --001a1133b07047794b0501856f4a Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Thanks=C2=A0Dave/Greg for your analysis and suggestions.

I can summarize= what I should do next:

- backup my data using xfs= dump
- rebuilt filesystem using mkfs with options: agcount=3D32 for 2T disk=
- mount filesystem with option inode64,nobarrier
- app= lied patches about adding free list inode on disk structure

As we have about ~100 servers need back up, so that will take mu= ch effort, do you have any other suggestion?

What = I am testing (ongoing):
=C2=A0- created a new 2T partition fi= lesystem
=C2=A0- try to create small files and fill whole spaces then rem= ove some of them randomly
=C2=A0- check the performance of touch/= cp files
=C2=A0- apply patches and verify it.

I have got more data from server:

1) flush all cache(echo 3 > /proc/sys/vm/drop_= caches), and umount filesystem
2) mount filesystem and testing wi= th touch command
=C2=A0 * The first touch new file command take a= bout ~23s
=C2=A0 * second touch command take about ~0.1s.

Here's the perf data:
First touch command:
<= br>
Events: 435 =C2=A0cycles
+ =C2=A0 7.51% =C2=A0= touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_i= nobt_get_rec
+ =C2=A0 5.61% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0[k] xfs_btree_get_block
+ =C2=A0 5.38% =C2=A0tou= ch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btre= e_increment
+ =C2=A0 4.26% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_get_rec
+ =C2=A0 = 3.73% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] find_busiest_group
+ =C2=A0 3.43% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0[k] _xfs_buf_find
+ =C2=A0 2.72% =C2=A0touch =C2= =A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_read= ahead
+ =C2=A0 2.38% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_trans_buf_item_match
+ =C2=A0= 2.34% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0[k] xfs_dialloc
+ =C2=A0 2.32% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] generic_m= ake_request
+ =C2=A0 2.09% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_offset
+ =C2= =A0 1.75% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] kmem_cache_alloc
+ =C2=A0 1.63% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] cpumas= k_next_and
+ =C2=A0 1.41% =C2=A0touch =C2=A0[sd_mod] =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 [k] sd_prep_fn
+ =C2=A0 1.41% =C2=A0touch =C2=A0[kernel.ka= llsyms] =C2=A0[k] get_page_from_freelist
+ =C2=A0 1.38% =C2=A0tou= ch =C2=A0[kernel.kallsyms] =C2=A0[k] __alloc_pages_nodemask
+ =C2= =A0 1.27% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] scsi_request_fn
+ =C2=A0 1.22% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] blk_queue= _bounce
+ =C2=A0 1.20% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0= [k] cfq_should_idle
+ =C2=A0 1.10% =C2=A0touch =C2=A0[xfs] =C2=A0= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_addr
= + =C2=A0 1.03% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] cfq_dispatch_r= equests+ =C2=A0 1.00% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] _spin_l= ock_irqsave+ =C2=A0 0.94% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] mem= cpy+ =C2=A0 0.86% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] swiotlb_map= _sg_attrs+ =C2=A0 0.84% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] alloc= _pages_current
+ =C2=A0 0.82% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] submit_bi= o
+ =C2=A0 0.81% =C2=A0touch =C2=A0[megaraid_sas] =C2=A0 =C2=A0 [= k] megasas_build_and_issue_cmd_fusion
+ =C2=A0 0.77% =C2=A0touch = =C2=A0[kernel.kallsyms] =C2=A0[k] blk_peek_request
+ =C2=A0 0.73% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0[k] xfs_btree_setbuf
+ =C2=A0 0.73% =C2=A0touch =C2= =A0[megaraid_sas] =C2=A0 =C2=A0 [k] MR_GetPhyParams
+ =C2=A0 0.73= % =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] run_timer_softirq
+ =C2=A0 0.71% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] pick_next_tas= k_rt
+ =C2=A0 0.71% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] init_requ= est_from_bio
+ =C2=A0 0.70% =C2=A0touch =C2=A0[kernel.kallsyms] = =C2=A0[k] thread_return
+ =C2=A0 0.69% =C2=A0touch =C2=A0[kernel.= kallsyms] =C2=A0[k] cfq_set_request
+ =C2=A0 0.67% =C2=A0touch = =C2=A0[kernel.kallsyms] =C2=A0[k] mempool_alloc
+ =C2=A0 0.66% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0[k] xfs_buf_hold
+ =C2=A0 0.66% =C2=A0touch =C2= =A0[kernel.kallsyms] =C2=A0[k] find_next_bit
+ =C2=A0 0.62% =C2= =A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] cfq_insert_request
+ = =C2=A0 0.61% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] scsi_init_io
+ =C2=A0 0.60% =C2=A0touch =C2=A0[megaraid_sas] =C2=A0 =C2=A0 [k] MR_B= uildRaidContext
+ =C2=A0 0.59% =C2=A0touch =C2=A0[kernel.kallsyms= ] =C2=A0[k] policy_zonelist
+ =C2=A0 0.59% =C2=A0touch =C2=A0[ker= nel.kallsyms] =C2=A0[k] elv_insert
+ =C2=A0 0.58% =C2=A0touch =C2= =A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_buf_alloca= te_memory


Second perf command:

Events: 105 =C2=A0cycles
+ =C2=A0= 20.92% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0[k] xfs_inobt_get_rec
+ =C2=A014.27% =C2=A0touch =C2=A0[xfs= ] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_get_rec
+ =C2=A012.21% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0[k] xfs_btree_get_block
+ =C2=A012.12% =C2=A0tou= ch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btre= e_increment
+ =C2=A0 9.86% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_readahead
+ =C2= =A0 7.87% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0= =C2=A0[k] _xfs_buf_find
+ =C2=A0 4.93% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0[k] xfs_btree_rec_addr
+ =C2=A0 4.12% =C2=A0touc= h =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_diall= oc
+ =C2=A0 3.03% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] c= lear_page_c
+ =C2=A0 2.96% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_btree_rec_offset
+ =C2=A0 1.31% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] kmem_cach= e_free
+ =C2=A0 1.03% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_trans_buf_item_match
+ =C2= =A0 0.99% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] _atomic_dec_and_loc= k
+ =C2=A0 0.99% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0[k] xfs_inobt_get_maxrecs
+ =C2=A0 0.99% =C2=A0touch =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0[k] xfs_buf_unlock
+ =C2=A0 0.99% =C2=A0touch = =C2=A0[xfs] =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0[k] kmem_zone_a= lloc
+ =C2=A0 0.98% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k]= kmem_cache_alloc
+ =C2=A0 0.28% =C2=A0touch =C2=A0[kernel.kallsy= ms] =C2=A0[k] pgd_alloc
+ =C2=A0 0.17% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] page_faul= t
+ =C2=A0 0.01% =C2=A0touch =C2=A0[kernel.kallsyms] =C2=A0[k] na= tive_write_msr_safe

I have compared the memo= ry used, it seems that xfs try to load inode bmap block for the first time,= which take much time, is that the reason to take so much time for the firs= t touch operation?

Thanks
Qiang
2014-08-26 10:37 G= MT+08:00 Dave Chinner <david@fromorbit.com>:
On Mon, Aug 25, 2014 at 06:46:31PM -0400, Greg Freemyer w= rote:
> On Mon, Aug 25, 2014 at 6:26 PM, Dave Chinner <david@fromorbit.com> wrote:
> > On Mon, Aug 25, 2014 at 06:31:10PM +0800, Zhang Qiang wrote:
> >> 2014-08-25 17:08 GMT+08:00 Dave Chinner <david@fromorbit.com>:
> >>
> >> > On Mon, Aug 25, 2014 at 04:47:39PM +0800, Zhang Qiang wr= ote:
> >> > > I have checked icount and ifree, but I found there = are about 11.8 percent
> >> > > free, so the free inode should not be too few.
> >> > >
> >> > > Here's the detail log, any new clue?
> >> > >
> >> > > # mount /dev/sda4 /data1/
> >> > > # xfs_info /data1/
> >> > > meta-data=3D/dev/sda4=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 isize=3D256=C2=A0 =C2=A0 agcount=3D4, agsize=3D1422723= 84
> >> >
> >> > 4 AGs
> >> >
> >> Yes.
> >>
> >> >
> >> > > icount =3D 220619904
> >> > > ifree =3D 26202919
> >> >
> >> > And 220 million inodes. There's your problem - that&= #39;s an average
> >> > of 55 million inodes per AGI btree assuming you are usin= g inode64.
> >> > If you are using inode32, then the inodes will be in 2 b= trees, or
> >> > maybe even only one.
> >> >
> >>
> >> You are right, all inodes stay on one AG.
> >>
> >> BTW, why i allocate 4 AGs, and all inodes stay in one AG for = inode32?,
> >
> > Because the top addresses in the 2nd AG go over 32 bits, hence on= ly
> > AG 0 can be used for inodes. Changing to inode64 will give you so= me
> > relief, but any time allocation occurs in AG0 is will be slow. i.= e.
> > you'll be trading always slow for "unpredictably slow&qu= ot;.
> >
> >> > With that many inodes, I'd be considering moving to = 32 or 64 AGs to
> >> > keep the btree size down to a more manageable size. The = free inode
> >>
> >> btree would also help, but, really, 220M inodes in a 2TB file= system
> >> > is really pushing the boundaries of sanity.....
> >> >
> >>
> >> So the better inodes size in one AG is about 5M,
> >
> > Not necessarily. But for your storage it's almost certainly g= oing to
> > minimise the problem you are seeing.
> >
> >> is there any documents
> >> about these options I can learn more?
> >
> > http://xfs.org/index.php/XFS_Papers_and_Documentation
>
> Given the apparently huge number of small files would he likely see a<= br> > big performance increase if he replaced that 2TB or rust with SSD.

Doubt it - the profiles showed the allocation being CPU bound searching the metadata that indexes all those inodes. Those same
profiles showed all the signs that it was hitting the buffer
cache most of the time, too, which is why it was CPU bound....

Cheers,

Dave.
--
Dave Chinner
david@fromorbit.com

--001a1133b07047794b0501856f4a-- From bfoster@redhat.com Tue Aug 26 07:41:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B63C47F3F for ; Tue, 26 Aug 2014 07:41:04 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 437BCAC001 for ; Tue, 26 Aug 2014 05:41:01 -0700 (PDT) X-ASG-Debug-ID: 1409056859-04cb6c5500591160001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id g6edWQN5ioFBzd6w (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 26 Aug 2014 05:41:00 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCevMT004043 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 26 Aug 2014 08:40:57 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCeuj1008523; Tue, 26 Aug 2014 08:40:57 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 0DD8112577F; Tue, 26 Aug 2014 08:40:56 -0400 (EDT) Date: Tue, 26 Aug 2014 08:40:55 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [RFC, PATCH 0/4] xfs: clean up xlog_recover_process_data Message-ID: <20140826124055.GA52815@bfoster.bfoster> X-ASG-Orig-Subj: Re: [RFC, PATCH 0/4] xfs: clean up xlog_recover_process_data References: <1409016101-9511-1-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409016101-9511-1-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409056859 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 26, 2014 at 11:21:37AM +1000, Dave Chinner wrote: > Hi folks, > > The log recovery use-after-free that Brian posted a patch for has > had several previous attempts sent and none have completed review. > So let's put this one to bed for good. > > This patch set addresses the previous review feedback for fixing > this problem. It factors xlog_recover_process_data() to make it > cleaner and isolate the context of the transaction recvoery > structure that is causing problems. It fixes a leak of the structure > in an error condition that I noticed while factoring, as well as the > double free that Brian and others have identified and tried to fix > in the past. It then re-arranges the recovery item management code > to put it all in one place, rather than in 3 separate parts of the > file separated by several hundred lines of unrelated code. > > Comments? > This looks pretty good to me. I like the cleanups and it fixes the problem. A few minor comments/questions to follow. Brian > -Dave. > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 26 07:41:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 727A77F3F for ; Tue, 26 Aug 2014 07:41:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0F977AC001 for ; Tue, 26 Aug 2014 05:41:20 -0700 (PDT) X-ASG-Debug-ID: 1409056876-04bdf010a05222a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id oHZYNQcFdJwSafLp (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 26 Aug 2014 05:41:16 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCfFNG027368 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 26 Aug 2014 08:41:15 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCfEpV022985; Tue, 26 Aug 2014 08:41:14 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id D1D2D12577F; Tue, 26 Aug 2014 08:41:13 -0400 (EDT) Date: Tue, 26 Aug 2014 08:41:13 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-ID: <20140826124112.GB52815@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409016101-9511-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409056876 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 26, 2014 at 11:21:38AM +1000, Dave Chinner wrote: > From: Dave Chinner > > Clean up xlog_recover_process_data() structure in preparation for > fixing the allocationa nd freeing context of the transaction being > recovered. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_log_recover.c | 151 ++++++++++++++++++++++++++--------------------- > 1 file changed, 84 insertions(+), 67 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 01becbb..1970732f 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -3531,12 +3531,78 @@ out: > } > > STATIC int > -xlog_recover_unmount_trans( > - struct xlog *log) > +xlog_recovery_process_ophdr( > + struct xlog *log, > + struct hlist_head rhash[], > + struct xlog_rec_header *rhead, > + struct xlog_op_header *ohead, > + xfs_caddr_t dp, > + xfs_caddr_t lp, > + int pass) > { > - /* Do nothing now */ > - xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > - return 0; > + struct xlog_recover *trans; > + xlog_tid_t tid; > + int error; > + unsigned long hash; > + uint flags; > + unsigned int hlen; > + > + hlen = be32_to_cpu(ohead->oh_len); > + tid = be32_to_cpu(ohead->oh_tid); > + hash = XLOG_RHASH(tid); > + trans = xlog_recover_find_tid(&rhash[hash], tid); > + if (!trans) { > + /* add new tid if this is a new transaction */ > + if (ohead->oh_flags & XLOG_START_TRANS) { > + xlog_recover_new_tid(&rhash[hash], tid, > + be64_to_cpu(rhead->h_lsn)); > + } > + return 0; > + } > + Overall this looks pretty good to me. I wonder if we can clean this up to separate state management from error detection while we're at it. I don't see any reason this code to find trans has to be up here. > + error = -EIO; > + if (dp + hlen > lp) { > + xfs_warn(log->l_mp, "%s: bad length 0x%x", __func__, hlen); > + WARN_ON(1); > + goto out_free; > + } > + > + flags = ohead->oh_flags & ~XLOG_END_TRANS; > + if (flags & XLOG_WAS_CONT_TRANS) > + flags &= ~XLOG_CONTINUE_TRANS; > + /* we should find a trans for anything other than a start op */ trans = xlog_recover_find_tid(&rhash[hash], tid); if (((ohead->oh_flags & XLOG_START_TRANS) && trans) || (!(ohead->oh_flags & XLOG_START_TRANS) && !trans)) { xfs_warn(log->l_mp, "%s: bad transaction 0x%x oh_flags 0x%x trans %p", __func__, tid, ohead->oh_flags, trans); ASSERT(0); return -EIO; } Maybe returning error here is not the right thing to do because we want the recovery to proceed. We could still dump a warning and return 0 though. > + switch (flags) { > + /* expected flag values */ > + case 0: > + case XLOG_CONTINUE_TRANS: > + error = xlog_recover_add_to_trans(log, trans, dp, hlen); > + break; > + case XLOG_WAS_CONT_TRANS: > + error = xlog_recover_add_to_cont_trans(log, trans, dp, hlen); > + break; > + case XLOG_COMMIT_TRANS: > + error = xlog_recover_commit_trans(log, trans, pass); > + break; > + > + /* unexpected flag values */ > + case XLOG_UNMOUNT_TRANS: > + xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > + error = 0; > + break; > + case XLOG_START_TRANS: > + xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); > + ASSERT(0); > + break; xlog_recover_new_tid(&rhash[hash], tid, be64_to_cpu(rhead->h_lsn) error = 0; break; Brian > + default: > + xfs_warn(log->l_mp, "%s: bad flag 0x%x", __func__, flags); > + ASSERT(0); > + break; > + } > + > +out_free: > + if (error) > + xlog_recover_free_trans(trans); > + return error; > } > > /* > @@ -3556,14 +3622,10 @@ xlog_recover_process_data( > xfs_caddr_t dp, > int pass) > { > + struct xlog_op_header *ohead; > xfs_caddr_t lp; > int num_logops; > - xlog_op_header_t *ohead; > - xlog_recover_t *trans; > - xlog_tid_t tid; > int error; > - unsigned long hash; > - uint flags; > > lp = dp + be32_to_cpu(rhead->h_len); > num_logops = be32_to_cpu(rhead->h_num_logops); > @@ -3573,69 +3635,24 @@ xlog_recover_process_data( > return -EIO; > > while ((dp < lp) && num_logops) { > - ASSERT(dp + sizeof(xlog_op_header_t) <= lp); > - ohead = (xlog_op_header_t *)dp; > - dp += sizeof(xlog_op_header_t); > + ASSERT(dp + sizeof(struct xlog_op_header) <= lp); > + > + ohead = (struct xlog_op_header *)dp; > + dp += sizeof(*ohead); > + > if (ohead->oh_clientid != XFS_TRANSACTION && > ohead->oh_clientid != XFS_LOG) { > xfs_warn(log->l_mp, "%s: bad clientid 0x%x", > - __func__, ohead->oh_clientid); > + __func__, ohead->oh_clientid); > ASSERT(0); > return -EIO; > } > - tid = be32_to_cpu(ohead->oh_tid); > - hash = XLOG_RHASH(tid); > - trans = xlog_recover_find_tid(&rhash[hash], tid); > - if (trans == NULL) { /* not found; add new tid */ > - if (ohead->oh_flags & XLOG_START_TRANS) > - xlog_recover_new_tid(&rhash[hash], tid, > - be64_to_cpu(rhead->h_lsn)); > - } else { > - if (dp + be32_to_cpu(ohead->oh_len) > lp) { > - xfs_warn(log->l_mp, "%s: bad length 0x%x", > - __func__, be32_to_cpu(ohead->oh_len)); > - WARN_ON(1); > - return -EIO; > - } > - flags = ohead->oh_flags & ~XLOG_END_TRANS; > - if (flags & XLOG_WAS_CONT_TRANS) > - flags &= ~XLOG_CONTINUE_TRANS; > - switch (flags) { > - case XLOG_COMMIT_TRANS: > - error = xlog_recover_commit_trans(log, > - trans, pass); > - break; > - case XLOG_UNMOUNT_TRANS: > - error = xlog_recover_unmount_trans(log); > - break; > - case XLOG_WAS_CONT_TRANS: > - error = xlog_recover_add_to_cont_trans(log, > - trans, dp, > - be32_to_cpu(ohead->oh_len)); > - break; > - case XLOG_START_TRANS: > - xfs_warn(log->l_mp, "%s: bad transaction", > - __func__); > - ASSERT(0); > - error = -EIO; > - break; > - case 0: > - case XLOG_CONTINUE_TRANS: > - error = xlog_recover_add_to_trans(log, trans, > - dp, be32_to_cpu(ohead->oh_len)); > - break; > - default: > - xfs_warn(log->l_mp, "%s: bad flag 0x%x", > - __func__, flags); > - ASSERT(0); > - error = -EIO; > - break; > - } > - if (error) { > - xlog_recover_free_trans(trans); > - return error; > - } > - } > + > + error = xlog_recovery_process_ophdr(log, rhash, rhead, ohead, > + dp, lp, pass); > + if (error) > + return error; > + > dp += be32_to_cpu(ohead->oh_len); > num_logops--; > } > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 26 07:42:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F2FFD7F3F for ; Tue, 26 Aug 2014 07:42:03 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E18C730404E for ; Tue, 26 Aug 2014 05:42:00 -0700 (PDT) X-ASG-Debug-ID: 1409056919-04cb6c55005913d0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id HwuN3GuPgcFXTGuh (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 26 Aug 2014 05:42:00 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCfwHT028404 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 26 Aug 2014 08:41:58 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCfwA2023334; Tue, 26 Aug 2014 08:41:58 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 7C61312577F; Tue, 26 Aug 2014 08:41:57 -0400 (EDT) Date: Tue, 26 Aug 2014 08:41:57 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/4] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory Message-ID: <20140826124156.GC52815@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: recovery of XLOG_UNMOUNT_TRANS leaks memory References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409016101-9511-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409056920 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 26, 2014 at 11:21:39AM +1000, Dave Chinner wrote: > From: Dave Chinner > > It aborts recovery without freeing the current trans structure that > we are decoding. > What do you mean by "aborts recovery?" I don't see anything in the code that reflects that behavior. Do you mean it's an on-disk marker for completion? > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_log_recover.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 1970732f..460cf98 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -3587,8 +3587,9 @@ xlog_recovery_process_ophdr( > /* unexpected flag values */ > case XLOG_UNMOUNT_TRANS: > xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > - error = 0; > - break; > + xlog_recover_free_trans(trans); > + return 0; > + The change to return here seems superfluous. It's fine, but just to check, were you intending to alter behavior in some way (e.g., return from xlog_recover_process_data())? Brian > case XLOG_START_TRANS: > xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); > ASSERT(0); > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Tue Aug 26 07:42:36 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D21A87F3F for ; Tue, 26 Aug 2014 07:42:36 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6F3DFAC001 for ; Tue, 26 Aug 2014 05:42:36 -0700 (PDT) X-ASG-Debug-ID: 1409056954-04cbb0548581cb00001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id heq32UhIO93t1kSN (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 26 Aug 2014 05:42:35 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCgXnY024944 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 26 Aug 2014 08:42:33 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7QCgW5H030649; Tue, 26 Aug 2014 08:42:32 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id ECB6412577F; Tue, 26 Aug 2014 08:42:31 -0400 (EDT) Date: Tue, 26 Aug 2014 08:42:31 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/4] xfs: fix double free in xlog_recover_commit_trans Message-ID: <20140826124231.GD52815@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 3/4] xfs: fix double free in xlog_recover_commit_trans References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409016101-9511-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409056955 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, Aug 26, 2014 at 11:21:40AM +1000, Dave Chinner wrote: > From: Dave Chinner > > When an error occurs during buffer submission in > xlog_recover_commit_trans(), we free the trans structure twice. Fix > it by only freeing the structure in the caller regardless of the > success or failure of the function. > > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_log_recover.c | 10 +++++++--- > 1 file changed, 7 insertions(+), 3 deletions(-) > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > index 460cf98..23895d5 100644 > --- a/fs/xfs/xfs_log_recover.c > +++ b/fs/xfs/xfs_log_recover.c > @@ -3524,8 +3524,6 @@ out: > if (!list_empty(&done_list)) > list_splice_init(&done_list, &trans->r_itemq); > > - xlog_recover_free_trans(trans); > - > error2 = xfs_buf_delwri_submit(&buffer_list); > return error ? error : error2; > } > @@ -3571,6 +3569,11 @@ xlog_recovery_process_ophdr( > if (flags & XLOG_WAS_CONT_TRANS) > flags &= ~XLOG_CONTINUE_TRANS; > > + /* > + * Callees must not free the trans structure. We own it, so we'll decide > + * if we need to free it or not based on the operation being done and > + * it's result. its > + */ > switch (flags) { > /* expected flag values */ > case 0: > @@ -3582,7 +3585,8 @@ xlog_recovery_process_ophdr( > break; > case XLOG_COMMIT_TRANS: > error = xlog_recover_commit_trans(log, trans, pass); > - break; > + xlog_recover_free_trans(trans); > + return error; > > /* unexpected flag values */ > case XLOG_UNMOUNT_TRANS: > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From sales@digital-ads.net Tue Aug 26 08:08:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.9 required=5.0 tests=HTML_MESSAGE,MONEY_BACK autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 98A387F3F for ; Tue, 26 Aug 2014 08:08:38 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 09980AC003 for ; Tue, 26 Aug 2014 06:08:34 -0700 (PDT) X-ASG-Debug-ID: 1409058511-04cbb05487820f30001-NocioJ Received: from sm1.indianemailmarketers.co.in (gw52.indianemailmarketers.co.in [103.9.223.220]) by cuda.sgi.com with ESMTP id b0lRzyAwZmne6ysc for ; Tue, 26 Aug 2014 06:08:31 -0700 (PDT) X-Barracuda-Envelope-From: sales@Digital-Ads.net X-Barracuda-Apparent-Source-IP: 103.9.223.220 Received: from WS68 (unknown [192.168.0.68]) by host.indianemailmarketers.co.in (Postfix) with ESMTPA id 975811F69D36 for ; Tue, 26 Aug 2014 16:41:35 +0530 (IST) From: "Aimee Jackson" To: Subject: Don't Miss Out,still awaiting for your reply.... 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Haven't heard back from you, just wondering if you are interested in our services. I tried to reach you just now but you were not available to speak. Just wanted to reach out about your goals for social media this year. Do let me know if you are interested and I would be happy to share you more details about our past work details, client testimonials and price list. Regards, Aimee Jackson Business Development Manager Email ID: sales@Digital-Ads.net P Please consider the environment before printing this e-mail. ----------__________________________________________________________________ __________ From: Aimee Jackson [mailto: sales@Digital-Ads.net] Sent: Tue, 15th July, 2013 4:43 PM To: xfs@oss.sgi.com Subject: Pay After Your Best Performance: Improve Your Site Visitors With Alexa Rank Just in 30 Days By Our Digital Marketing Services. Hi, Was just wondering if you could help me out? We just came across your Company We are running a Results Based SEO Program. 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I will be happy to send you links to price list, money back guarantee, client testimonials, "How we are different from others?", and "Why should you choose us?" on receiving a response from you. ------=_NextPart_000_4A09_01CFC158.39DB7440 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hope you are doing = well.

 

Haven't heard back from you, just wondering if you = are interested in our services.

I tried to = reach you just now but you were not available to speak. Just wanted to = reach out about your goals for social media this year.

Do let me know if you are interested and I would be = happy to share you more details about our past work details, client = testimonials and price list.

 

 

Regards,

Aimee Jackson

Business Development = Manager

Email ID:  = sales@Digital-Ads.net

P<= span style=3D'font-size:10.0pt;color:#1F497D'> Please = consider the environment before printing this e-mail.

­­­­­­­­­­_____= _______________________________________________________________________

From: Aimee Jackson [mailto: = sales@Digital-Ads.net]
Sent: Tue, 15th July, 2013 4:43 = PM
To: xfs@oss.sgi.com
Subject: Pay After Your Best = Performance: Improve Your Site Visitors With Alexa Rank Just in 30 Days = By Our Digital Marketing Services.

Hi,

Was just = wondering if you could help me out?

 

We just = came across your Company

We are running a Results = Based SEO Program. This is a unique performance based marketing = program wherein you pay us on per-Selected & Top keywords for all = the targeted audience, we generate your Targeted Traffic, Sales = And Branding. Your company has been shortlisted for this = campaign.

 

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Shopping Cart – Magneto, = Open Cart, Zen Cart, oscommerce, Big = Commerce.

 

<= p class=3DMsoNoSpacing>Framework - Zend Framework, Code = igniter, Cake Php

 

<= p class=3DMsoNoSpacing>CMS – Wordpress, = Joomla

 

<= p class=3DMsoNoSpacing>Portal – Travel Portal, = Matrimonial Sites, Job Portal etc.

 

<= p class=3DMsoNoSpacing>Application - CRM (vTiger), = School Management System, HRMS (orange hrm)

 

<= p class=3DMsoNoSpacing>Mobile Apps – = Android

 

=

If you are interested, Please = send us your exact requirement details so that we can provide you the = amazing services as per your requirement.

 

---------------------------------= -------------------------------------------------------------------------= ------------

 

Thanks so = much!

Aimee = Jackson

Internet = Marketing Consultant

sales@Digital-Ad= s.net

P<= span = style=3D'font-size:10.0pt;font-family:"Calibri","sans-serif";color:#1F497= D'> Please consider the environment before printing this = e-mail.

 

----------------= --------------------------------------------------

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PS2: We operate 24 x7. I will be happy to send you links to price list, = money back guarantee, client testimonials, “How we are different = from others?”, and “Why should you choose us?” on = receiving a response from you.

------=_NextPart_000_4A09_01CFC158.39DB7440-- From david@fromorbit.com Tue Aug 26 08:14:04 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id EBC287F3F for ; Tue, 26 Aug 2014 08:14:03 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id BE057304059 for ; Tue, 26 Aug 2014 06:14:00 -0700 (PDT) X-ASG-Debug-ID: 1409058837-04bdf0109a527910001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id nsyDhEQBAUZiFFiU for ; Tue, 26 Aug 2014 06:13:57 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AmQTAG+H/FN5LDJ8PGdsb2JhbABagw2BKoczp3cBAQEBBqRuAYEUFwUBAQEBODaEAwEBBAE6HCMFCwgDGAklDwUlAwcaE4g6B757FxiFZIhlaweETAWPE401mH0rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 26 Aug 2014 22:43:56 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMGZO-00025i-Bi; Tue, 26 Aug 2014 23:13:54 +1000 Date: Tue, 26 Aug 2014 23:13:54 +1000 From: Dave Chinner To: Zhang Qiang Cc: Greg Freemyer , xfs-oss Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140826131354.GK20518@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> <20140825222657.GF20518@dastard> <20140826023754.GH20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409058837 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8845 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 26, 2014 at 06:04:52PM +0800, Zhang Qiang wrote: > Thanks Dave/Greg for your analysis and suggestions. > > I can summarize what I should do next: > > - backup my data using xfsdump > - rebuilt filesystem using mkfs with options: agcount=32 for 2T disk > - mount filesystem with option inode64,nobarrier Ok up to here. > - applied patches about adding free list inode on disk structure No, don't do that. You're almost certain to get it wrong and corrupt your filesysetms and lose data. > As we have about ~100 servers need back up, so that will take much effort, > do you have any other suggestion? Just remount them with inode64. Nothing else. Over time as you add and remove files the inodes will redistribute across all 4 AGs. > What I am testing (ongoing): > - created a new 2T partition filesystem > - try to create small files and fill whole spaces then remove some of them > randomly > - check the performance of touch/cp files > - apply patches and verify it. > > I have got more data from server: > > 1) flush all cache(echo 3 > /proc/sys/vm/drop_caches), and umount filesystem > 2) mount filesystem and testing with touch command > * The first touch new file command take about ~23s > * second touch command take about ~0.1s. So it's cache population that is your issue. You didn't say that first time around, which means the diagnosis was wrong. Again, it's having to search a btree with 220 million inodes in it to find the first free inode, and that btree has to be pulled in from disk and searched. Once it's cached, then each subsequent allocation will be much faster becaue the majority of the tree being searched will already be in cache... > I have compared the memory used, it seems that xfs try to load inode bmap > block for the first time, which take much time, is that the reason to take > so much time for the first touch operation? No. reading the AGI btree to find the first free inode to allocate is what is taking the time. If you spread the inodes out over 4 AGs (using inode64) then the overhead of the first read will go down proportionally. Indeed, that is one of the reasons for using more AGs than 4 for filesystems lik ethis. Still, I can't help but wonder why you are using a filesystem to store hundreds of millions of tiny files, when a database is far better suited to storing and indexing this type and quantity of data.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From jack@suse.cz Tue Aug 26 11:06:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 77AFB7F3F for ; Tue, 26 Aug 2014 11:06:39 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 49A878F8068 for ; Tue, 26 Aug 2014 09:06:36 -0700 (PDT) X-ASG-Debug-ID: 1409069192-04bdf0109a543800001-NocioJ Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by cuda.sgi.com with ESMTP id LOEkmgRj6VsebVCC (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 26 Aug 2014 09:06:33 -0700 (PDT) X-Barracuda-Envelope-From: jack@suse.cz X-Barracuda-Apparent-Source-IP: 195.135.220.15 Received: from relay1.suse.de (charybdis-ext.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 5098EAB43; Tue, 26 Aug 2014 16:06:32 +0000 (UTC) Received: by quack.suse.cz (Postfix, from userid 1000) id 8776681C68; Tue, 26 Aug 2014 18:06:30 +0200 (CEST) Date: Tue, 26 Aug 2014 18:06:30 +0200 From: Jan Kara To: Dave Chinner Cc: Jan Kara , xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140826160630.GA9341@quack.suse.cz> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> <20140821195632.GA10335@quack.suse.cz> <20140821223332.GO26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140821223332.GO26465@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: cantor2.suse.de[195.135.220.15] X-Barracuda-Start-Time: 1409069193 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8848 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri 22-08-14 08:33:32, Dave Chinner wrote: > On Thu, Aug 21, 2014 at 09:56:32PM +0200, Jan Kara wrote: > > On Thu 21-08-14 15:09:09, Dave Chinner wrote: > > > From: Dave Chinner > > > > > > generic/263 is failing fsx at this point with a page spanning > > > EOF that cannot be invalidated. The operations are: > > > > > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > > > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > > > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > > > > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > > > write attempts to invalidate the cached page over this range, it > > > fails with -EBUSY and so we fire this assert: > > > > > > XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 > > > > > > because the kernel is trying to fall back to buffered IO on the > > > direct IO path (which XFS does not do). > > > > > > The real question is this: Why can't that page be invalidated after > > > it has been written to disk an cleaned? > > > > > > Well, there's data on the first two buffers in the page (1k block > > > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > > > is failing drop_buffers because it's bh->b_state == 0x3, which is > > > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > > > what? > > > > > > OK, set_buffer_dirty() is called on all buffers from > > > __set_page_buffers_dirty(), regardless of whether the buffer is > > > beyond EOF or not, which means that when we get to ->writepage, > > > we have buffers marked dirty beyond EOF that we need to clean. > > > So, we need to implement our own .set_page_dirty method that > > > doesn't dirty buffers beyond EOF. > > > > > > This is messy because the buffer code is not meant to be shared > > > and it has interesting locking issues on the buffer dirty bits. > > > So just copy and paste it and then modify it to suit what we need. > > Well, I'm not sure this is the cleanest way to fix your problem. The > > thing is that inode size can change (decrease) after set_page_dirty() has > > run and writeback can find the page before truncate_inode_pages() calls > > do_invalidatepage() on the last partial page. Now I agree that given > > truncate and direct IO are both synchronized using IOLOCK, this change > > still fixes your problem. I just wanted to point out that your change > > doesn't really make sure won't see dirty buffers in a tail page beyond > > i_size. > > Truncate is not the problem. The issue is that we can't > *invalidate* pages that have dirty buffers, and I soon realised that > we don't see this problem with truncate because *truncate ignores > invalidation failures*. So now I went looking for how other code > handled this. > > > As Anton has pointed out other filesystems solve the same issue by clearing > > the dirty bits beyond EOF in their writepage() function. Also since we > > zero-out the tail of the page in writepage() (even in XFS as I checked), > > this kind of makes sense to me and has smaller overhead than special > > set_page_dirty()... > > Yes, and that's where I started - block_write_full_page and so > I ended up with this first: > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index 2a316ad..a9d6afc 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -1057,8 +1073,24 @@ xfs_vm_writepage( > do { > int new_ioend = 0; > > - if (offset >= end_offset) > + /* > + * If the buffer is fully beyond EOF, we need to mark it clean > + * otherwise we'll leave stale dirty buffers in memory. See the > + * comment above in the EOF handling about Charlie Foxtrots. > + */ > + if (offset >= end_offset) { > + clear_buffer_dirty(bh); > + ASSERT(!buffer_delay(bh)); > + ASSERT(!buffer_mapped(bh)); > + > + /* > + * Page is not uptodate until buffers under IO have been > + * fully processed. > + */ > + uptodate = 0; > + continue; > - break; > + } > + > if (!buffer_uptodate(bh)) > uptodate = 0; > > > But this doesn't solve the invalidation failures - it merely covers > up a symptom of the underlying problem. i.e. fsx went from > failing invalidate on the EOF page at operation #1192 to failing > invalidate on the EOF page at operation #9378. > > The I realised that flush/wait/invalidate is actually racy against > mmap, so writepage clearing dirty buffer flags on buffers beyond EOF > is not a solution to the problem - it can still occur. So I added Hum, I have to say I don't quite understand this. I agree with you that clearing dirty bits in .writepage() is racy wrt mmap. However I don't see how fsx can ever trigger this. For flush/wait/invalidate to fail, someone would have to write to the mapping somewhere between flush and invalidate. However fsx is singlethreaded so I don't see how that can happen. > this check to releasepage() to catch stale dirty buffers beyond EOF > preventing invalidation from succeeding: > > @@ -1209,9 +1245,16 @@ xfs_vm_writepages( > > /* > * Called to move a page into cleanable state - and from there > - * to be released. The page should already be clean. We always > + * to be released. We always > * have buffer heads in this call. > * > + * The page should already be clean, except in the case where EOF falls within > + * the page and then we can have dirty buffers beyond EOF that nobody can > + * actually clean. These dirty buffers will cause invalidation failures, but > + * because they can't be written the should not prevent us from tossing the page > + * out of cache. Hence if we span EOF, walk the buffers on the page and make > + * sure they are in a state where try_to_free_buffers() will succeed. > + * > * Returns 1 if the page is ok to release, 0 otherwise. > */ > STATIC int > @@ -1219,7 +1262,10 @@ xfs_vm_releasepage( > struct page *page, > gfp_t gfp_mask) > { > + struct inode *inode = page->mapping->host; > int delalloc, unwritten; > + loff_t end_offset, offset; > + pgoff_t end_index; > > trace_xfs_releasepage(page->mapping->host, page, 0, 0); > > @@ -1230,5 +1276,21 @@ xfs_vm_releasepage( > if (WARN_ON_ONCE(unwritten)) > return 0; > > + end_offset = i_size_read(inode); > + end_index = end_offset >> PAGE_CACHE_SHIFT; > + if (page->index >= end_index) { > + struct buffer_head *head = page_buffers(page); > + struct buffer_head *bh; > + > + offset = end_index << PAGE_CACHE_SHIFT; Here should be page->index instead of end_index I suppose. However it shouldn't make a difference wrt your experiment. > + bh = head; > + do { > + if (offset > end_offset) > + clear_buffer_dirty(bh); > + bh = bh->b_this_page; > + offset += 1 << inode->i_blkbits; > + } while (bh != head); > + } > + > return try_to_free_buffers(page); > } > > Which then moved the fsx invalidation failure out to somewhere > around 105,000 operations. > > At which point I realised that I'm playing whack-a-mole with a > fundamental problem: buffers beyond EOF cannot be written, so > dirtying them in the first place is just fundamentally wrong. In XFS we'll > zero them on disk during an extend operation (either in write, > truncate or prealloc), so we're not going to leaak stale data by not > marking them dirty. They may not even be allocated, so we can't > assume that we can write them. So, rather than trying to handle this > dirty-buffers-beyond-EOF case in every situation where we might trip > over it, let's just prevent it from happening in the first place. Sure I understand that. I'm now trying to understand why noone else sees the problem (we do run xfstests for ext4 and blocksize < page size) and whether there's something we might want to do for other filesystems as well. I wonder if there isn't something special going on with XFS redirtying the page because xfs_imap_valid() returned EAGAIN but looking into the code I don't see how that could happen. > That's where the .set_page_dirty() method came about. The "mmap > dirties buffers beyond the EOF" problem is gone. Now, truncate might > have a similar problem with leaving dirty buffers beyond EOF as you > suggest, but I just can't seem to trip over that problem and it > hasn't shown up in the ~500 million fsx ops and ~30 hours of > fsstress that I've run in the past few days. So without being able > to reproduce a problem, I'm extremely wary of trying to "fix" it. So truncate is introducing dirty pages beyond EOF only temporarily - between the moment i_size is set and the moment page is invalidated. Since direct IO is synchronized with truncate, it cannot see them and you are fine. Only stuff like writeback or page reclaim can see pages in such state... Honza -- Jan Kara SUSE Labs, CR From stan@hardwarefreak.com Tue Aug 26 12:19:50 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 273917F4E for ; Tue, 26 Aug 2014 12:19:50 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DDF638F806F for ; Tue, 26 Aug 2014 10:19:46 -0700 (PDT) X-ASG-Debug-ID: 1409073584-04bdf0109754e030001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id oFnSB9q2IXwHIVTq for ; Tue, 26 Aug 2014 10:19:44 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id 916626C192; Tue, 26 Aug 2014 12:19:43 -0500 (CDT) To: Dave Chinner Subject: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Tue, 26 Aug 2014 12:19:43 -0500 From: Stan Hoeppner Cc: In-Reply-To: <20140826075345.GJ20518@dastard> References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> Message-ID: <8c29baf987467a84f0b7c1d09c863662@localhost> X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409073584 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Tue, 26 Aug 2014 17:53:45 +1000, Dave Chinner wrote: > On Tue, Aug 26, 2014 at 01:18:50AM -0500, Stan Hoeppner wrote: >> Had some controller issues but believe we had those ironed out before >> this >> recent breakage. I had reformatted both 48TB LUNs on this test box with >> -f >> and defaults, and fired up the test app again. Throughput was fantastic >> with no dropped application buffers for ~30 minutes, and IO times were >> 1.x >> ms max, suggesting all the writes were acked by controller cache. The >> app >> was running perfectly. Then it hanged and spit out an internal error >> msg: >> >> >> Failed to reopen file /mnt/VOL1/sg-04/str-0015/f-0000000005 >> >> I have many call traces in dmesg, most are XFS, pasted below. I found no >> SCSI I/O errors in dmesg. Application is submitting writes via libaio >> and >> using O_DIRECT, writing to preallocated files. I don't see any errors in >> the storage controller log and everything seems to check out there. >> Using >> noop elevator, mpt2sas, no multipathing. The application process is hung >> in d state and kill -9 won't get rid of it. I can't unmount the hosed up >> filesystem. Any ideas? >> >> # ls -la /mnt/VOL1 >> ls: cannot access /mnt/VOL1: Input/output error >> >> # dd if=/mnt/VOL1 of=/dev/null bs=1M count=16 >> dd: opening `/mnt/VOL1': Input/output error >> >> # dd if=/dev/sdd of=/dev/null bs=1M count=16 >> 16+0 records in >> 16+0 records out >> 16777216 bytes (17 MB) copied, 1.10989 s, 15.1 MB/s >> >> # ls -la /mnt/ >> ls: cannot access /mnt/VOL1: Input/output error >> total 8 >> drwxrwxrwt 6 root root 120 Aug 25 17:59 . >> drwxr-xr-x 21 root root 4096 Jul 15 09:39 .. >> drwxrwxrwt 3 root root 80 Aug 25 16:52 initramfs >> drwxr-xr-x 3 root root 4096 Apr 24 04:57 scratch >> drwxrwxrwx 5 root root 58 Aug 25 22:06 VOL0 >> d????????? ? ? ? ? ? VOL1 > > That's an inode we failed to stat() - most likely because of the IO > error. Has the filesystem shut down? the IO error shoul dhave had > some kind of output in dmesg associated with it from XFS.... Sorry, I omitted the XFS logging preceding the first call trace: Aug 25 18:02:50 Anguish-ssu-1 kernel: [ 4280.310304] SGI XFS with security attributes, large block/inode numbers, no debug enabled Aug 25 18:02:50 Anguish-ssu-1 kernel: [ 4280.311101] XFS (sdc): Mounting Filesystem Aug 25 18:02:51 Anguish-ssu-1 kernel: [ 4280.501405] XFS (sdc): Starting recovery (logdev: internal) Aug 25 18:02:53 Anguish-ssu-1 kernel: [ 4282.766547] XFS (sdc): Failed to recover EFIs Aug 25 18:02:53 Anguish-ssu-1 kernel: [ 4282.766549] XFS (sdc): log mount finish failed Aug 25 18:04:50 Anguish-ssu-1 kernel: [ 4399.471829] XFS (sdc): Mounting Filesystem Aug 25 18:04:50 Anguish-ssu-1 kernel: [ 4399.620805] XFS (sdc): Ending clean mount Aug 25 18:04:56 Anguish-ssu-1 kernel: [ 4405.613778] XFS (sdd): Mounting Filesystem Aug 25 18:04:56 Anguish-ssu-1 kernel: [ 4405.835412] XFS (sdd): Ending clean mount Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): xfs_do_force_shutdown(0x8) called from line 3732 of file fs/xfs/xfs_bmap.c. Return address = 0xffffffffa01cc9a6 Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307128] XFS (sdd): failed to update timestamps for inode 0x2a000000a4 Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307484] XFS (sdd): failed to update timestamps for inode 0x29000000a4 Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307487] XFS (sdd): failed to update timestamps for inode 0x20000009f Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307499] XFS (sdd): failed to update timestamps for inode 0x29000000a4 Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307693] XFS (sdd): failed to update timestamps for inode 0x20000009f Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.368106] XFS (sdd): failed to update timestamps for inode 0xf000000a4 Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.369785] XFS (sdd): failed to update timestamps for inode 0xf000000a4 Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.605835] XFS (sdd): failed to update timestamps for inode 0x2810f413c Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.606169] XFS (sdd): failed to update timestamps for inode 0x60000009f Again, when the app locked up I was assuming we had more controller issues, and I expected to find SCSI I/O errors preceding the XFS errors. But there are none. The controllers check out, no errors logged on them. Diags pass, etc. When NOT using AIO for submission, just parallel O_DIRECT, the big rig is sustaining ~2.5GB/s write throughput across 14 arrays at the application level with ~4200 write threads submitting IOs concurrently, with no problems, no errors. ~1/3rd of these write threads are slow writers, each submitting a 32KB IO to a file every few seconds. Fast and medium rate streams fill the cache, thus these slow writer streams generate RMWs. This is why the throughput is relatively low for 168 effective spindles which are capable of streaming writes in the ~16GB/s neighborhood. My little test rig is submitting from 602 threads in parallel, 301 threads each to one of two filesystems each on a 12+1 RAID5 LUN. Both boxes have the same problem described here, but only when submitting with AIO. I don't have logs for the big box, but I did see some of the same collateral damage on it, specifically the garbage when doing an 'ls -la' on the mount points. This obviously due to the XFS forced shutdown. >> [22635.102013] INFO: task kworker/7:0:45 blocked for more than 120 >> seconds. >> [22635.102016] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" >> disables >> this message. >> [22635.102018] kworker/7:0 D ffff8840666c0b08 0 45 2 >> 0x00000000 >> [22635.102021] ffff8840666e7bd0 0000000000000046 ffff883f7c02d000 >> ffff8840666f5180 >> [22635.102026] ffff8840666e7b80 0000000000000206 00000000000122c0 >> 00000000000122c0 >> [22635.102030] ffff8840666e7fd8 ffff8840666e6000 00000000000122c0 >> ffff8840666e6000 >> [22635.102033] Call Trace: >> [22635.102041] [] schedule+0x64/0x66 >> [22635.102044] [] rwsem_down_failed_common+0xdb/0x10d >> [22635.102047] [] rwsem_down_write_failed+0x13/0x15 >> [22635.102051] [] >> call_rwsem_down_write_failed+0x13/0x20 >> [22635.102055] [] ? >> _raw_spin_unlock_irqrestore+0x30/0x3d >> [22635.102058] [] ? down_write+0x25/0x27 >> [22635.102070] [] xfs_ilock+0x4f/0xb4 [xfs] >> [22635.102077] [] >> xfs_iomap_write_unwritten+0x1b3/0x32e >> [xfs] >> [22635.102080] [] ? >> _raw_spin_unlock_irqrestore+0x30/0x3d >> [22635.102084] [] ? xfs_setfilesize+0x128/0x128 [xfs] >> [22635.102088] [] ? mempool_free+0x73/0x78 >> [22635.102093] [] ? xfs_setfilesize+0x128/0x128 [xfs] >> [22635.102098] [] xfs_end_io+0x89/0xb4 [xfs] >> [22635.102102] [] process_one_work+0x204/0x327 >> [22635.102105] [] worker_thread+0x13b/0x25a >> [22635.102108] [] ? process_one_work+0x327/0x327 >> [22635.102111] [] kthread+0x89/0x91 >> [22635.102115] [] kernel_thread_helper+0x4/0x10 >> [22635.102118] [] ? __init_kthread_worker+0x3c/0x3c >> [22635.102120] [] ? gs_change+0xb/0xb > > That's stuck on a an inode lock. That reminds of a problem we had in > RHEL6 with highly concurrent direct IO. The rwsems were buggy, and > XFS was tripping over the bug and hanging just like this. If the > filesystem is not shutting down and causing that IO error due to a > shutdown state, then it's entirely possible we've got another rwsem > issue. Now I've just got to go find the RHEL 6 problem again. Ah: Definitely highly concurrent direct io here. Filesystem *is* shutting down. Again, this only happens when submitting via AIO. > 91af708 rwsem: Test for no active locks in __rwsem_do_wake undo code > > But that was fixed in 2.6.34 (rhel 6 was based on 2.6.32), so I > doubt that is your problem. However, it smells almost exactly the > same - it took about an hour of highly concurrent direct IO to SSDs > to trigger, and Lachlan ended up finding the right incantation of > lock debug code inside the xfs mrlock implementation to prove that > it was an rwsem bug and not an XFS locking issue. FWIW I'm seeing it after about ~30 minutes on the small box. I don't know how quickly it occurred on the big rig. > Are you able to take crash dumps from this machine so you can dig > around inside the XFS inode and rwsem states when the system locks > up like this? The kernel isn't completely crashing. I am able to CTRL+Z out of the hung application back to a prompt, and open additional SSH shells. But when these errors occur, something in the kernel does become goofy, as the load average spikes to the stratosphere, even though there is no CPU burn nor IO wait. Once the app crashes the box is 100% idle. Do keep in mind as we troubleshoot this that the boxen are in a machine room 520 miles from my location. So I can't push magic key sequences on the console. I don't have KVM access. Through I might be able to get it if needed, haven't asked. > One thing in the RH bug that was suggested as a simply test to > determine if there's a problem with the rwsems is to edit the kernel > configin arch/x86/Kconfig: > > Change: > > config RWSEM_GENERIC_SPINLOCK > def_bool !X86_ADD > > config RWSEM_XCHGADD_ALGORITHM > def_bool X86_ADD > > to: > > config RWSEM_GENERIC_SPINLOCK > def_bool y > > config RWSEM_XCHGADD_ALGORITHM > def_bool n These aren't truly lab systems in all respects. I don't have the permission/access to change the kernel config and recompile. There is a "process" for that and a different group owns that process. If this is necessary to troubleshoot this then I'll see if I can push it through. > I haven't cheked if this still works on a 3.4 kernel, but it will > change the rwsem implementation to the generic, spinlock based > implementation rather than the super-special, highly optimised > x86 specific implementation. If that makes the problem go away, > then we've got another rwsem bug on our hands. If it doesn't, then I > can probably get you the mrlock debug code lachlan wrote and we can > see if XFS is doing something wrong... Thanks for the detailed explanation. Given the new information I've provided, what is my next step? Thanks, Stan From david@fromorbit.com Tue Aug 26 16:38:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5EB8E7F51 for ; Tue, 26 Aug 2014 16:38:29 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 4D3448F8054 for ; Tue, 26 Aug 2014 14:38:25 -0700 (PDT) X-ASG-Debug-ID: 1409089102-04cb6c54fd5c77b0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id l8sfu2DaWxAEAU2u for ; Tue, 26 Aug 2014 14:38:23 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkwOAMr9/FN5LDJ8/2dsb2JhbABbgw2BKoIsrQcBAQEGpG4BgRkXd4QDAQEEATocIwULCAMOBwMJJQ8FJQMhExuIHwe/XBcYhWSJUAeETAWcU5UVgWQegW4rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 27 Aug 2014 07:08:21 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMORM-0003MW-6y; Wed, 27 Aug 2014 07:38:08 +1000 Date: Wed, 27 Aug 2014 07:38:08 +1000 From: Dave Chinner To: Jan Kara Cc: xfs@oss.sgi.com, clm@fb.com Subject: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages Message-ID: <20140826213808.GL20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/6] xfs: mmap write/read leaves bad state on pages References: <1408597754-13526-1-git-send-email-david@fromorbit.com> <1408597754-13526-2-git-send-email-david@fromorbit.com> <20140821195632.GA10335@quack.suse.cz> <20140821223332.GO26465@dastard> <20140826160630.GA9341@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140826160630.GA9341@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1409089102 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8856 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 26, 2014 at 06:06:30PM +0200, Jan Kara wrote: > On Fri 22-08-14 08:33:32, Dave Chinner wrote: > > On Thu, Aug 21, 2014 at 09:56:32PM +0200, Jan Kara wrote: > > > On Thu 21-08-14 15:09:09, Dave Chinner wrote: > > > > From: Dave Chinner > > > > > > > > generic/263 is failing fsx at this point with a page spanning > > > > EOF that cannot be invalidated. The operations are: > > > > > > > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > > > > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > > > > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > > > > > > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > > > > write attempts to invalidate the cached page over this range, it > > > > fails with -EBUSY and so we fire this assert: > > > > > > > > XFS: Assertion failed: ret < 0 || ret == count, file: fs/xfs/xfs_file.c, line: 676 > > > > > > > > because the kernel is trying to fall back to buffered IO on the > > > > direct IO path (which XFS does not do). > > > > > > > > The real question is this: Why can't that page be invalidated after > > > > it has been written to disk an cleaned? .... > > > As Anton has pointed out other filesystems solve the same issue by clearing > > > the dirty bits beyond EOF in their writepage() function. Also since we > > > zero-out the tail of the page in writepage() (even in XFS as I checked), > > > this kind of makes sense to me and has smaller overhead than special > > > set_page_dirty()... > > > > Yes, and that's where I started - block_write_full_page and so > > I ended up with this first: > > > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > > index 2a316ad..a9d6afc 100644 > > --- a/fs/xfs/xfs_aops.c > > +++ b/fs/xfs/xfs_aops.c > > @@ -1057,8 +1073,24 @@ xfs_vm_writepage( > > do { > > int new_ioend = 0; > > > > - if (offset >= end_offset) > > + /* > > + * If the buffer is fully beyond EOF, we need to mark it clean > > + * otherwise we'll leave stale dirty buffers in memory. See the > > + * comment above in the EOF handling about Charlie Foxtrots. > > + */ > > + if (offset >= end_offset) { > > + clear_buffer_dirty(bh); > > + ASSERT(!buffer_delay(bh)); > > + ASSERT(!buffer_mapped(bh)); > > + > > + /* > > + * Page is not uptodate until buffers under IO have been > > + * fully processed. > > + */ > > + uptodate = 0; > > + continue; > > - break; > > + } > > + > > if (!buffer_uptodate(bh)) > > uptodate = 0; > > > > > > But this doesn't solve the invalidation failures - it merely covers > > up a symptom of the underlying problem. i.e. fsx went from > > failing invalidate on the EOF page at operation #1192 to failing > > invalidate on the EOF page at operation #9378. > > > > The I realised that flush/wait/invalidate is actually racy against > > mmap, so writepage clearing dirty buffer flags on buffers beyond EOF > > is not a solution to the problem - it can still occur. So I added > Hum, I have to say I don't quite understand this. I agree with you that > clearing dirty bits in .writepage() is racy wrt mmap. However I don't see > how fsx can ever trigger this. For flush/wait/invalidate to fail, someone > would have to write to the mapping somewhere between flush and invalidate. > However fsx is singlethreaded so I don't see how that can happen. Right, I was talking about the general problem, not necessarily the specific fsx problem I was seeing. i.e. clearing dirty buffers beyond EOF in writepage is not a robust solution, so regardless of whatever other problems there are, it's not a solution we can rely on. .... > > At which point I realised that I'm playing whack-a-mole with a > > fundamental problem: buffers beyond EOF cannot be written, so > > dirtying them in the first place is just fundamentally wrong. In XFS we'll > > zero them on disk during an extend operation (either in write, > > truncate or prealloc), so we're not going to leaak stale data by not > > marking them dirty. They may not even be allocated, so we can't > > assume that we can write them. So, rather than trying to handle this > > dirty-buffers-beyond-EOF case in every situation where we might trip > > over it, let's just prevent it from happening in the first place. > Sure I understand that. I'm now trying to understand why noone else sees > the problem (we do run xfstests for ext4 and blocksize < page size) and > whether there's something we might want to do for other filesystems as > well. Right, I don't understand where it's coming from, either. I know there are still problems with stray delalloc blocks even after making this change because xfs/297 is still tripping over delayed allocation blocks where there should be none during direct IO. i.e. this avoids the EOF issues that the direct IO invalidation changes expose, but I still haven't been able to find the underlying cause that is still triggering problems within EOF. This is the disadvantage of smart people writing smart code - most people (me included) are simply too dumb to be able to debug it. And so when shit goes wrong, we're left to wonder where the paddle was hidden... > I wonder if there isn't something special going on with XFS > redirtying the page because xfs_imap_valid() returned EAGAIN but looking > into the code I don't see how that could happen. To tell the truth, I'm fed up with having to deal repeatedly with bufferhead coherency problems and not being able to find the root cause. We just keep finding problem after problem after problem and there's no end in sight. So I'm much more inclined to spend time removing bufferheads from XFS than I am to try to find a needle in a very large haystack.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Tue Aug 26 17:34:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 9D3FF7F51 for ; Tue, 26 Aug 2014 17:34:27 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7A4788F8065 for ; Tue, 26 Aug 2014 15:34:27 -0700 (PDT) X-ASG-Debug-ID: 1409092461-04cbb054878577f0001-NocioJ Received: from ipmail07.adl2.internode.on.net (ipmail07.adl2.internode.on.net [150.101.137.131]) by cuda.sgi.com with ESMTP id D1mQNfU5ExfCccLP for ; Tue, 26 Aug 2014 15:34:22 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.131 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AksOALwK/VN5LDJ8/2dsb2JhbABbgw2BKoIsrQcBAQEGpG4BgREXd4QDAQEFJxMcIxAIAw4HAwklDwUlAyETiEG/VBcYhWSJUAeETAWGE5ZAjBaIf4FmHIFuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail07.adl2.internode.on.net with ESMTP; 27 Aug 2014 08:04:20 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMPJX-0003U7-4b; Wed, 27 Aug 2014 08:34:07 +1000 Date: Wed, 27 Aug 2014 08:34:07 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-ID: <20140826223407.GM20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-2-git-send-email-david@fromorbit.com> <20140826124112.GB52815@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140826124112.GB52815@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail07.adl2.internode.on.net[150.101.137.131] X-Barracuda-Start-Time: 1409092461 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8858 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 26, 2014 at 08:41:13AM -0400, Brian Foster wrote: > On Tue, Aug 26, 2014 at 11:21:38AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > > > Clean up xlog_recover_process_data() structure in preparation for > > fixing the allocationa nd freeing context of the transaction being > > recovered. > > > > Signed-off-by: Dave Chinner > > --- > > fs/xfs/xfs_log_recover.c | 151 ++++++++++++++++++++++++++--------------------- > > 1 file changed, 84 insertions(+), 67 deletions(-) > > > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > > index 01becbb..1970732f 100644 > > --- a/fs/xfs/xfs_log_recover.c > > +++ b/fs/xfs/xfs_log_recover.c > > @@ -3531,12 +3531,78 @@ out: > > } > > > > STATIC int > > -xlog_recover_unmount_trans( > > - struct xlog *log) > > +xlog_recovery_process_ophdr( > > + struct xlog *log, > > + struct hlist_head rhash[], > > + struct xlog_rec_header *rhead, > > + struct xlog_op_header *ohead, > > + xfs_caddr_t dp, > > + xfs_caddr_t lp, > > + int pass) > > { > > - /* Do nothing now */ > > - xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > > - return 0; > > + struct xlog_recover *trans; > > + xlog_tid_t tid; > > + int error; > > + unsigned long hash; > > + uint flags; > > + unsigned int hlen; > > + > > + hlen = be32_to_cpu(ohead->oh_len); > > + tid = be32_to_cpu(ohead->oh_tid); > > + hash = XLOG_RHASH(tid); > > + trans = xlog_recover_find_tid(&rhash[hash], tid); > > + if (!trans) { > > + /* add new tid if this is a new transaction */ > > + if (ohead->oh_flags & XLOG_START_TRANS) { > > + xlog_recover_new_tid(&rhash[hash], tid, > > + be64_to_cpu(rhead->h_lsn)); > > + } > > + return 0; > > + } > > + > > Overall this looks pretty good to me. I wonder if we can clean this up > to separate state management from error detection while we're at it. I > don't see any reason this code to find trans has to be up here. > > > + error = -EIO; > > + if (dp + hlen > lp) { > > + xfs_warn(log->l_mp, "%s: bad length 0x%x", __func__, hlen); > > + WARN_ON(1); > > + goto out_free; > > + } > > + > > + flags = ohead->oh_flags & ~XLOG_END_TRANS; > > + if (flags & XLOG_WAS_CONT_TRANS) > > + flags &= ~XLOG_CONTINUE_TRANS; > > + > > /* we should find a trans for anything other than a start op */ > trans = xlog_recover_find_tid(&rhash[hash], tid); > if (((ohead->oh_flags & XLOG_START_TRANS) && trans) || > (!(ohead->oh_flags & XLOG_START_TRANS) && !trans)) { > xfs_warn(log->l_mp, "%s: bad transaction 0x%x oh_flags 0x%x trans %p", > __func__, tid, ohead->oh_flags, trans); > ASSERT(0); > return -EIO; > } > > Maybe returning error here is not the right thing to do because we want > the recovery to proceed. We could still dump a warning and return 0 > though. Urk. Try understanding why that logic exists in a couple of years time when you've forgetten all the context. :/ > > + switch (flags) { > > + /* expected flag values */ > > + case 0: > > + case XLOG_CONTINUE_TRANS: > > + error = xlog_recover_add_to_trans(log, trans, dp, hlen); > > + break; > > + case XLOG_WAS_CONT_TRANS: > > + error = xlog_recover_add_to_cont_trans(log, trans, dp, hlen); > > + break; > > + case XLOG_COMMIT_TRANS: > > + error = xlog_recover_commit_trans(log, trans, pass); > > + break; > > + > > + /* unexpected flag values */ > > + case XLOG_UNMOUNT_TRANS: > > + xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > > + error = 0; > > + break; > > + case XLOG_START_TRANS: > > + xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); > > + ASSERT(0); > > + break; > > xlog_recover_new_tid(&rhash[hash], tid, be64_to_cpu(rhead->h_lsn) > error = 0; > break; > I like the idea, but I don't like the suggested implementation. I was in two minds as to whether I should factor xlog_recover_find_tid() further. There's only one caller of it and only one caller of xlog_recover_new_tid() and the happen within three lines of each other. Hence I'm thinking that it makes more sense to wrap the "find or allocate trans" code in a single helper and lift all that logic clean out of this function. That helper can handle all the XLOG_START_TRANS logic more cleanly, I think.... Actually, that makes the factoring I've already done a little inconsistent. Let me rework this a bit. Cheers, Dave. -- Dave Chinner david@fromorbit.com From webmaster@dev103.magizz.com Tue Aug 26 20:14:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8DCFA7F3F for ; Tue, 26 Aug 2014 20:14:40 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 6DBB4304051 for ; Tue, 26 Aug 2014 18:14:37 -0700 (PDT) X-ASG-Debug-ID: 1409102073-04cbb0548585bec0001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id rkwGMWnA8qPMJ54n (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Tue, 26 Aug 2014 18:14:34 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev103.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev103.magizz.com; s=default; h=Content-Type:Content-Transfer-Encoding:MIME-Version:List-Unsubscribe:Message-ID:Reply-To:From:Date:Subject:To; bh=vdvUR47Hj9QJeV+I4hO9vbQExRMpEuj+NHP641YsaSM=; b=kEVJdSVCzty3/N10T7f/awYYhJWC3Cd3HloRN9H+wtlc+KRtF1gAsk8G4Z4kC2F4Verxz1JBsBopBI5CMPDVASLXEBvNMS+jrRswkGaoxzcDFJ/IR1yKowUyzourZ8za2KYa91VYSK4M+Cjzcdk6PF12LUn1sUYIBqHaY6a6624=; Received: from dev103magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XMRon-0005pG-4y for xfs@oss.sgi.com; Wed, 27 Aug 2014 05:14:33 +0400 To: xfs@oss.sgi.com Subject: Goodbye from our newsletter X-PHP-Script: dev103.magizz.com/mailz/index.php for 66.249.64.186 X-ASG-Orig-Subj: Goodbye from our newsletter Received: from crawl-66-249-64-186.googlebot.com [66.249.64.186] by dev103.magizz.com with HTTP; Wed, 27 Aug 2014 01:14:32 +0000 Date: Wed, 27 Aug 2014 01:14:33 +0000 From: Webmaster Reply-To: Webmaster Message-ID: X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.6 X-MessageID: systemmessage X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev103.magizz.com List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [506 517] / [47 12] X-AntiAbuse: Sender Address Domain - dev103.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev103magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1409102073 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8862 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Goodbye from our Newsletter, sorry to see you go. 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Thank you From zhangqiang.buaa@gmail.com Wed Aug 27 03:53:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE, T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id A3B787F3F for ; Wed, 27 Aug 2014 03:53:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0F827AC001 for ; Wed, 27 Aug 2014 01:53:23 -0700 (PDT) X-ASG-Debug-ID: 1409129597-04cb6c55005e3250001-NocioJ Received: from mail-lb0-f177.google.com (mail-lb0-f177.google.com [209.85.217.177]) by cuda.sgi.com with ESMTP id LIKknPUY4B806h8X (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 27 Aug 2014 01:53:18 -0700 (PDT) X-Barracuda-Envelope-From: zhangqiang.buaa@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.217.177 X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.177] Received: by mail-lb0-f177.google.com with SMTP id l4so2712143lbv.22 for ; Wed, 27 Aug 2014 01:53:17 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.177] X-Barracuda-IPDD: Level1 [gmail.com/209.85.217.177] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=1R3FjxzDCmWAKFygncMrfQBUXq0gXJRz37C660++KNo=; b=rrNVvHp6HNDGgozUTDDIFATUI4kP5PJvoGyt84Vh9XYhYZQsuOjBwzG/5E6CP3hGam D1O9WSqSkV+kjt9ct18MVc+e5Ldc/jXjTbg0sdJeiPHeNApxS13GH7DKkrENr1maIPKf YxTvrDIkb4e35ekBr7Ki3+2YkNwG71ZA/oBvaHNLXcvoo/HbcBU26U9bNcgFg/zPaedM qFZSvOl/xdUgsU7x14MiDbet1RfkQMi0H4HAgQsDQ/JayG5gtI/yqADTXo2eNx4KeUdx N83MYimnqbzfV1lfF1OMrRridVMfTA5+CVI5dgJLnzWNEHDzF8I511o2C4+DtyLIJm0r HnUg== MIME-Version: 1.0 X-Received: by 10.112.41.193 with SMTP id h1mr1277020lbl.95.1409129597291; Wed, 27 Aug 2014 01:53:17 -0700 (PDT) Received: by 10.114.161.116 with HTTP; Wed, 27 Aug 2014 01:53:17 -0700 (PDT) In-Reply-To: <20140826131354.GK20518@dastard> References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> <20140825222657.GF20518@dastard> <20140826023754.GH20518@dastard> <20140826131354.GK20518@dastard> Date: Wed, 27 Aug 2014 16:53:17 +0800 Message-ID: Subject: Re: bad performance on touch/cp file on XFS system From: Zhang Qiang X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system To: Dave Chinner Cc: Greg Freemyer , xfs-oss Content-Type: multipart/alternative; boundary=001a1134615216d3a70501988d40 X-Barracuda-Connect: mail-lb0-f177.google.com[209.85.217.177] X-Barracuda-Start-Time: 1409129598 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.75 X-Barracuda-Spam-Status: No, SCORE=0.75 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_RULE_7580G, DKIM_SIGNED, DKIM_VERIFIED, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8872 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_MESSAGE BODY: HTML included in message 0.75 BSF_RULE_7580G Custom Rule 7580G --001a1134615216d3a70501988d40 Content-Type: text/plain; charset=UTF-8 2014-08-26 21:13 GMT+08:00 Dave Chinner : > On Tue, Aug 26, 2014 at 06:04:52PM +0800, Zhang Qiang wrote: > > Thanks Dave/Greg for your analysis and suggestions. > > > > I can summarize what I should do next: > > > > - backup my data using xfsdump > > - rebuilt filesystem using mkfs with options: agcount=32 for 2T disk > > - mount filesystem with option inode64,nobarrier > > Ok up to here. > > > - applied patches about adding free list inode on disk structure > > No, don't do that. You're almost certain to get it wrong and corrupt > your filesysetms and lose data. > > > As we have about ~100 servers need back up, so that will take much > effort, > > do you have any other suggestion? > > Just remount them with inode64. Nothing else. Over time as you add > and remove files the inodes will redistribute across all 4 AGs. > OK. How I can see the layout number of inodes on each AGs? Here's my checking steps: 1) Check unmounted file system first: [root@fstest data1]# xfs_db -c "sb 0" -c "p" /dev/sdb1 |egrep 'icount|ifree' icount = 421793920 ifree = 41 [root@fstest data1]# xfs_db -c "sb 1" -c "p" /dev/sdb1 |egrep 'icount|ifree' icount = 0 ifree = 0 [root@fstest data1]# xfs_db -c "sb 2" -c "p" /dev/sdb1 |egrep 'icount|ifree' icount = 0 ifree = 0 [root@fstest data1]# xfs_db -c "sb 3" -c "p" /dev/sdb1 |egrep 'icount|ifree' icount = 0 ifree = 0 2) mount it with inode64 and create many files: [root@fstest /]# mount -o inode64,nobarrier /dev/sdb1 /data [root@fstest /]# cd /data/tmp/ [root@fstest tmp]# fdtree.bash -d 16 -l 2 -f 100 -s 1 [root@fstest /]# umount /data 3) Check with xfs_db again: [root@fstest data1]# xfs_db -f -c "sb 0" -c "p" /dev/sdb1 |egrep 'icount|ifree' icount = 421821504 ifree = 52 [root@fstest data1]# xfs_db -f -c "sb 1" -c "p" /dev/sdb1 |egrep 'icount|ifree' icount = 0 ifree = 0 So, it seems that inodes only on first AG. Or icount/ifree is not the correct value to check, and how should I check how many inodes on each AGs? I am finding a way to improve the performance based on current filesystem and kernel just remounting with inode64, I am trying how to make all inodes redistribute on all AGs averagely. Is there any good way?, for example backup half of data to another device and remove it, then copy back it. > > What I am testing (ongoing): > > - created a new 2T partition filesystem > > - try to create small files and fill whole spaces then remove some of > them > > randomly > > - check the performance of touch/cp files > > - apply patches and verify it. > > > > I have got more data from server: > > > > 1) flush all cache(echo 3 > /proc/sys/vm/drop_caches), and umount > filesystem > > 2) mount filesystem and testing with touch command > > * The first touch new file command take about ~23s > > * second touch command take about ~0.1s. > > So it's cache population that is your issue. You didn't say that > first time around, which means the diagnosis was wrong. Again, it's having > to > search a btree with 220 million inodes in it to find the first free > inode, and that btree has to be pulled in from disk and searched. > Once it's cached, then each subsequent allocation will be much > faster becaue the majority of the tree being searched will already > be in cache... > > > I have compared the memory used, it seems that xfs try to load inode bmap > > block for the first time, which take much time, is that the reason to > take > > so much time for the first touch operation? > > No. reading the AGI btree to find the first free inode to allocate > is what is taking the time. If you spread the inodes out over 4 AGs > (using inode64) then the overhead of the first read will go down > proportionally. Indeed, that is one of the reasons for using more > AGs than 4 for filesystems lik ethis. > OK, I see. > Still, I can't help but wonder why you are using a filesystem to > store hundreds of millions of tiny files, when a database is far > better suited to storing and indexing this type and quantity of > data.... > OK, this is a social networking website back end servers, actually the CDN infrastructure, and different server located different cities. We have a global sync script to make all these 100 servers have the same data. For each server we use RAID10 and XFS (CentOS6.3). There are about 3M files (50K in size) generated every day, and we track the path of each files in database. Do you have any suggestions to improve our solution? > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com > --001a1134615216d3a70501988d40 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable



2014-08-26 21:13 GMT+08:00 Dave Chinner <david@fromorbit.com= >:
On Tue, Aug 26, 2014 at 06:04:52PM +0800, Zhang Qiang= wrote:
> Thanks Dave/Greg for your analysis and suggestions.
>
> I can summarize what I should do next:
>
> - backup my data using xfsdump
> - rebuilt filesystem using mkfs with options: agcount=3D32 for 2T disk=
> - mount filesystem with option inode64,nobarrier

Ok up to here.

> - applied patches about adding free list inode on disk structure

No, don't do that. You're almost certain to get it wrong and = corrupt
your filesysetms and lose data.

> As we have about ~100 servers need back up, so that will take much eff= ort,
> do you have any other suggestion?

Just remount them with inode64. Nothing else. Over time as you add and remove files the inodes will redistribute across all 4 AGs.
OK.

How I can see =C2=A0the layout numbe= r of inodes on each AGs? Here's my checking steps:

1) Check unmounted file system first:
[root@fstest data= 1]# xfs_db -c "sb 0" =C2=A0-c "p" /dev/sdb1 |egrep '= ;icount|ifree'
icount =3D 421793920
ifree =3D 41
[root@fstest data1]# xfs_db -c "sb 1" =C2=A0-c "p" /dev= /sdb1 |egrep 'icount|ifree'
icount =3D 0
ifree = =3D 0
[root@fstest data1]# xfs_db -c "sb 2" =C2=A0-c &q= uot;p" /dev/sdb1 |egrep 'icount|ifree'
icount =3D 0
ifree =3D 0
[root@fstest data1]# xfs_= db -c "sb 3" =C2=A0-c "p" /dev/sdb1 |egrep 'icount|= ifree'
icount =3D 0
ifree =3D 0
2) = mount it with inode64 and create many files:

[root@fstest /]# mount -o inode64,nobarrier /dev/s= db1 /data
[root@fstest /]# cd /data/tmp/
[root@fstest t= mp]# fdtree.bash -d 16 -l 2 -f 100 -s 1
[root@fstest /]# um= ount /data

3) Check with xfs_db again:

[root@fstest data1]# xfs_db -f -c "sb 0" =C2=A0-c "p"= /dev/sdb1 |egrep 'icount|ifree'
icount =3D 421821504
ifree =3D 52
[root@fstest data1]# xfs_db -f -c "sb 1" = =C2=A0-c "p" /dev/sdb1 |egrep 'icount|ifree'
ic= ount =3D 0
ifree =3D 0

So, it seem= s that inodes only on first AG. Or icount/ifree is not the correct value to= check, and how should I check how many inodes on each AGs?


I am finding =C2=A0a way to improve the = performance based on current filesystem and kernel just remounting with ino= de64, I am trying how to make all inodes redistribute on all AGs averagely.=

Is there any good way?, for example backup half of data= to another device and remove it, then copy back it.


> What I am testing (ongoing):
>=C2=A0 - created a new 2T partition filesystem
>=C2=A0 - try to create small files and fill whole spaces then remove so= me of them
> randomly
>=C2=A0 - check the performance of touch/cp files
>=C2=A0 - apply patches and verify it.
>
> I have got more data from server:
>
> 1) flush all cache(echo 3 > /proc/sys/vm/drop_caches), and umount f= ilesystem
> 2) mount filesystem and testing with touch command
>=C2=A0 =C2=A0* The first touch new file command take about ~23s
>=C2=A0 =C2=A0* second touch command take about ~0.1s.

So it's cache population that is your issue. You didn't say t= hat
first time around, which means the diagnosis was wrong. Again, it's hav= ing to
search a btree with 220 million inodes in it to find the first free
inode, and that btree has to be pulled in from disk and searched.
Once it's cached, then each subsequent allocation will be much
faster becaue the majority of the tree being searched will already
be in cache...

> I have compared the memory used, it seems that xfs try to load inode b= map
> block for the first time, which take much time, is that the reason to = take
> so much time for the first touch operation?

No. reading the AGI btree to find the first free inode to allocate is what is taking the time. If you spread the inodes out over 4 AGs
(using inode64) then the overhead of the first read will go down
proportionally. Indeed, that is one of the reasons for using more
AGs than 4 for filesystems lik ethis.
OK, I see.=C2=A0=


Still, I can't help but wonder why you are using a filesystem to
store hundreds of millions of tiny files, when a database is far
better suited to storing and indexing this type and quantity of
data....

OK, this is a social networkin= g website back end servers, actually the CDN infrastructure, and different = server located different cities.
We have a global sync script to = make all these 100 servers have the same data.

For each server we use RAID10 and XFS (CentOS6.3)= .

There are about 3M files (50K in size) generated= every day, and we track the path of each files in database.

Do you have any suggestions to improve our solution?



Cheers,

Dave.
--
Dave Chinner
david@fromorbit.co= m

--001a1134615216d3a70501988d40-- From weber@zbfmail.de Wed Aug 27 05:14:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B66697F3F for ; Wed, 27 Aug 2014 05:14:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 38C14AC001 for ; Wed, 27 Aug 2014 03:14:28 -0700 (PDT) X-ASG-Debug-ID: 1409134466-04cbb054878728d0001-NocioJ Received: from mail.zbfmail.de (mail.zbfmail.de [176.9.84.12]) by cuda.sgi.com with ESMTP id 8xNYmeF4XX5KWFht (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 27 Aug 2014 03:14:26 -0700 (PDT) X-Barracuda-Envelope-From: weber@zbfmail.de X-Barracuda-Apparent-Source-IP: 176.9.84.12 Received: from mail.zbfmail.de (localhost [127.0.0.1]) by mail.zbfmail.de (Postfix) with ESMTP id 512DAA3436 for ; Wed, 27 Aug 2014 12:14:21 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.9.2 mail.zbfmail.de 512DAA3436 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zbfmail.de; s=dkim; t=1409134465; bh=yCB4C+fghVCBE4xqTNeBVrf3ul+PrsPky2F4FoRgcWk=; h=Date:From:To:Subject:Reply-To; b=cpJ0M7zRNt+O7KscNOWPKvgK/yxy3Gaqo2alA6yAoT6NKMaOPtJR4esrIVQoJ09AQ HgudaNMMA7C7fCnEfRFBPrrdCVcSUfGpU/HwoVw3WTplljNh9MdIbZz73nA1HM22J2 7ybmivOj43HD/9EuKRb3ggGxHQu1jVMyu7UgBVjw= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Date: Wed, 27 Aug 2014 12:14:21 +0200 From: Marko Weber|8000 To: Xfs Subject: mount options question Organization: zbf mail X-ASG-Orig-Subj: mount options question Reply-To: weber@zbfmail.de Mail-Reply-To: weber@zbfmail.de Message-ID: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> X-Sender: weber@zbfmail.de User-Agent: Roundcube zbfmail Webmail X-DCC--Metrics: mailserver 1102; Body=1 Fuz1=1 Fuz2=1 X-Barracuda-Connect: mail.zbfmail.de[176.9.84.12] X-Barracuda-Start-Time: 1409134466 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8874 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature sorry dave and all other, can you guys recommend me the most stable / best mount options for my new server with ssd=C2=B4s and XFS filesystem? at moment i would set: defaults,nobarrier,discard,logbsize=3D256k,noikeep or is just "default" the best solution and xfs detect itself whats best. can you guide me a bit? as eleavtor i set elevator=3Dnoop i setup disks with linux softraid raid1. On top of the raid is LVM (for=20 some data partations). would be nice to hear some tipps from you best regards marko --=20 zbfmail - Mittendrin statt nur Datei! OpenDKIM, SPF, DSPAM, Greylisting, POSTSCREEN, AMAVIS, Mailgateways Mailfiltering, SMTP Service, Spam Abwehr, MX-Backup, Mailserver Backup Redundante Mailgateways, HA Mailserver, Secure Mailserver From felipemonteiro.carvalho@gmail.com Wed Aug 27 05:20:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 027C47F47 for ; Wed, 27 Aug 2014 05:20:23 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D62968F8070 for ; Wed, 27 Aug 2014 03:20:19 -0700 (PDT) X-ASG-Debug-ID: 1409134818-04bdf010a05798e0001-NocioJ Received: from mail-pd0-f178.google.com (mail-pd0-f178.google.com [209.85.192.178]) by cuda.sgi.com with ESMTP id XSX57ekKuweoNixi (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 27 Aug 2014 03:20:18 -0700 (PDT) X-Barracuda-Envelope-From: felipemonteiro.carvalho@gmail.com X-Barracuda-RBL-Trusted-Forwarder: 209.85.192.178 Received: by mail-pd0-f178.google.com with SMTP id w10so24528751pde.9 for ; Wed, 27 Aug 2014 03:20:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=xDTguc5Vn/gZWeYndlx2HiYqk4EEBWuuFaWlQyrIyL4=; b=VIDrbTdm5ZyBPtRJ3YYdKY0hIRxeqWbS9i+FNzzYHUSmGUzhnRfToJiCx7bVDaK77K nt1JZAy7i1FoIzkK2sQGl4OHO2/dkXz19xMwiepJe0h2EB1RCFNW1RJnqCb3taRB4FqL ppLPRn7aJ6npdcj3oAzYG23ezFTybwSy3mnz018CmdZ/G5Gaw/K5SmV4RqsMAyoz4c3m 48ggDi7SVLbp78fo8Mv1dJvbmVYvq1E8vcZGOXjkhQo20cRpJ5ZRDANPNVTZMdZtqzcd yut094KRzn6+JTnb8pLOJuZOX8xDLIxETE63vkuW6usmKDBDc8Dg0ZFQUZN7fKerw/6R CenA== X-Barracuda-BBL-IP: nil MIME-Version: 1.0 X-Received: by 10.70.96.102 with SMTP id dr6mr44453275pdb.86.1409134814109; Wed, 27 Aug 2014 03:20:14 -0700 (PDT) Received: by 10.66.164.69 with HTTP; Wed, 27 Aug 2014 03:20:14 -0700 (PDT) Date: Wed, 27 Aug 2014 12:20:14 +0200 Message-ID: Subject: Ghost items in the end of a dir listing From: Felipe Monteiro de Carvalho X-ASG-Orig-Subj: Ghost items in the end of a dir listing To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-pd0-f178.google.com[209.85.192.178] X-Barracuda-Start-Time: 1409134818 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8875 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Hello, I am writing a program that reads XFS partitions and I am having trouble with some dir listings. In some directories in the block that starts with XD2B there is first the list of all directory items, which I read without problems, and then there is a free item, for example: xfs_dir2_data_unused freetag -> XFS_DIR2_DATA_FREE_TAG */ length -> 9A0 tag -> zero But after this free item there is still room in the block, so my program will try to read the next item. I cannot stop the reading because it is possible to have valid items, then a free item and then more valid items. The next item start might be something like: 00 00 00 2E 00 00 00 02 16 So it is not a free item, as it doesn't start with FF = XFS_DIR2_DATA_FREE_TAG But it isn't valid either, as its name is a bunch of trash =( So my questions are: 1> What are those ghost items in the end of the block? 2> Which criteria should be utilized to differentiate them from valid items? I tried some guesses but nothing really works so far... Here are screenshots of the actual data involved, here showing the item with XFS_DIR2_DATA_FREE_TAG: http://magnifier.sourceforge.net/temp/xfs/xfs_dir_listing_XD2B_FREE_item.png And here showing the area in the end of the block with wierd items: http://magnifier.sourceforge.net/temp/xfs/xfs_dir_listing_XD2B_after_FREE.png thanks for any tips =) -- Felipe Monteiro de Carvalho From bfoster@redhat.com Wed Aug 27 06:19:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 51A807F50 for ; Wed, 27 Aug 2014 06:19:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id D5001AC002 for ; Wed, 27 Aug 2014 04:19:18 -0700 (PDT) X-ASG-Debug-ID: 1409138353-04cbb054878745a0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id gw5q6CKHAVyToM2V (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Wed, 27 Aug 2014 04:19:14 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7RBJCUW021579 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 27 Aug 2014 07:19:12 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7RBJBxZ013048; Wed, 27 Aug 2014 07:19:12 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id CFAD812577F; Wed, 27 Aug 2014 07:19:10 -0400 (EDT) Date: Wed, 27 Aug 2014 07:19:10 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-ID: <20140827111910.GB7431@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-2-git-send-email-david@fromorbit.com> <20140826124112.GB52815@bfoster.bfoster> <20140826223407.GM20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140826223407.GM20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409138354 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Wed, Aug 27, 2014 at 08:34:07AM +1000, Dave Chinner wrote: > On Tue, Aug 26, 2014 at 08:41:13AM -0400, Brian Foster wrote: > > On Tue, Aug 26, 2014 at 11:21:38AM +1000, Dave Chinner wrote: > > > From: Dave Chinner > > > > > > Clean up xlog_recover_process_data() structure in preparation for > > > fixing the allocationa nd freeing context of the transaction being > > > recovered. > > > > > > Signed-off-by: Dave Chinner > > > --- > > > fs/xfs/xfs_log_recover.c | 151 ++++++++++++++++++++++++++--------------------- > > > 1 file changed, 84 insertions(+), 67 deletions(-) > > > > > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > > > index 01becbb..1970732f 100644 > > > --- a/fs/xfs/xfs_log_recover.c > > > +++ b/fs/xfs/xfs_log_recover.c > > > @@ -3531,12 +3531,78 @@ out: > > > } > > > > > > STATIC int > > > -xlog_recover_unmount_trans( > > > - struct xlog *log) > > > +xlog_recovery_process_ophdr( > > > + struct xlog *log, > > > + struct hlist_head rhash[], > > > + struct xlog_rec_header *rhead, > > > + struct xlog_op_header *ohead, > > > + xfs_caddr_t dp, > > > + xfs_caddr_t lp, > > > + int pass) > > > { > > > - /* Do nothing now */ > > > - xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > > > - return 0; > > > + struct xlog_recover *trans; > > > + xlog_tid_t tid; > > > + int error; > > > + unsigned long hash; > > > + uint flags; > > > + unsigned int hlen; > > > + > > > + hlen = be32_to_cpu(ohead->oh_len); > > > + tid = be32_to_cpu(ohead->oh_tid); > > > + hash = XLOG_RHASH(tid); > > > + trans = xlog_recover_find_tid(&rhash[hash], tid); > > > + if (!trans) { > > > + /* add new tid if this is a new transaction */ > > > + if (ohead->oh_flags & XLOG_START_TRANS) { > > > + xlog_recover_new_tid(&rhash[hash], tid, > > > + be64_to_cpu(rhead->h_lsn)); > > > + } > > > + return 0; > > > + } > > > + > > > > Overall this looks pretty good to me. I wonder if we can clean this up > > to separate state management from error detection while we're at it. I > > don't see any reason this code to find trans has to be up here. > > > > > + error = -EIO; > > > + if (dp + hlen > lp) { > > > + xfs_warn(log->l_mp, "%s: bad length 0x%x", __func__, hlen); > > > + WARN_ON(1); > > > + goto out_free; > > > + } > > > + > > > + flags = ohead->oh_flags & ~XLOG_END_TRANS; > > > + if (flags & XLOG_WAS_CONT_TRANS) > > > + flags &= ~XLOG_CONTINUE_TRANS; > > > + > > > > /* we should find a trans for anything other than a start op */ > > trans = xlog_recover_find_tid(&rhash[hash], tid); > > if (((ohead->oh_flags & XLOG_START_TRANS) && trans) || > > (!(ohead->oh_flags & XLOG_START_TRANS) && !trans)) { > > xfs_warn(log->l_mp, "%s: bad transaction 0x%x oh_flags 0x%x trans %p", > > __func__, tid, ohead->oh_flags, trans); > > ASSERT(0); > > return -EIO; > > } > > > > Maybe returning error here is not the right thing to do because we want > > the recovery to proceed. We could still dump a warning and return 0 > > though. > > Urk. Try understanding why that logic exists in a couple of years > time when you've forgetten all the context. :/ > Heh, that's the problem I had with the current code. The error checking and state machine management is split between here and below. The above is just an error check, and fwiw, it adds an extra check that doesn't exist in the current code. Hide the flag busy-ness and effectively the logic is: /* verify a tx is in progress or we're starting a new one */ if (trans && is_start_header(ohead) || !trans && !is_start_header(ohead)) return -EIO; ... which seems straightforward to me, but I'm sure there are other ways to refactor things as well. > > > + switch (flags) { > > > + /* expected flag values */ > > > + case 0: > > > + case XLOG_CONTINUE_TRANS: > > > + error = xlog_recover_add_to_trans(log, trans, dp, hlen); > > > + break; > > > + case XLOG_WAS_CONT_TRANS: > > > + error = xlog_recover_add_to_cont_trans(log, trans, dp, hlen); > > > + break; > > > + case XLOG_COMMIT_TRANS: > > > + error = xlog_recover_commit_trans(log, trans, pass); > > > + break; > > > + > > > + /* unexpected flag values */ > > > + case XLOG_UNMOUNT_TRANS: > > > + xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > > > + error = 0; > > > + break; > > > + case XLOG_START_TRANS: > > > + xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); > > > + ASSERT(0); > > > + break; > > > > xlog_recover_new_tid(&rhash[hash], tid, be64_to_cpu(rhead->h_lsn) > > error = 0; > > break; > > > > I like the idea, but I don't like the suggested implementation. I > was in two minds as to whether I should factor > xlog_recover_find_tid() further. There's only one caller of it and > only one caller of xlog_recover_new_tid() and the happen within > three lines of each other. Hence I'm thinking that it makes more > sense to wrap the "find or allocate trans" code in a single helper > and lift all that logic clean out of this function. That helper can > handle all the XLOG_START_TRANS logic more cleanly, I think.... > Fair enough, that sounds reasonable so long as it isn't pulling the core state management off into disparate functions. What I like about the above (combined with the result of the rest of this series) is that the lifecycle is obvious and contained in a single block of code. Brian > Actually, that makes the factoring I've already done a little > inconsistent. Let me rework this a bit. > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From david@fromorbit.com Wed Aug 27 18:08:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 522037F3F for ; Wed, 27 Aug 2014 18:08:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id E32ACAC001 for ; Wed, 27 Aug 2014 16:08:09 -0700 (PDT) X-ASG-Debug-ID: 1409180854-04cb6c54fe60a420001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id YVZz4CpEKEn7VNyg for ; Wed, 27 Aug 2014 16:07:35 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgghAHFj/lN5LDJ8PGdsb2JhbABBGoMNU1eNV6EhAQEBAQIGnSaBW4VoBQMCAYESFwUBAQEBODaEBAEFMgEjIxAIAxgJJQ8FJQMHLRuIJg42v0kYhWSJUAcWhDYFlVyGe5kLKy8BAYJNAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 28 Aug 2014 08:37:34 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMmJQ-0006yb-EK; Thu, 28 Aug 2014 09:07:32 +1000 Date: Thu, 28 Aug 2014 09:07:32 +1000 From: Dave Chinner To: weber@zbfmail.de Cc: Xfs Subject: Re: mount options question Message-ID: <20140827230732.GN20518@dastard> X-ASG-Orig-Subj: Re: mount options question References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409180854 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8893 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.10 BSF_SC0_SA085 Custom Rule SA085 On Wed, Aug 27, 2014 at 12:14:21PM +0200, Marko Weber|8000 wrote: > > sorry dave and all other, > > can you guys recommend me the most stable / best mount options for > my new server with ssd´s and XFS filesystem? > > at moment i would set: defaults,nobarrier,discard,logbsize=256k,noikeep > or is just "default" the best solution and xfs detect itself whats best. > > can you guide me a bit? > > as eleavtor i set elevator=noop > > i setup disks with linux softraid raid1. On top of the raid is LVM > (for some data partations). > > > would be nice to hear some tipps from you Unless you have specific requirements or have the knowledge to understand how the different options affect behaviour, then just use the defaults. http://xfs.org/index.php/XFS_FAQ#Q:_I_want_to_tune_my_XFS_filesystems_for_.3Csomething.3E Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Wed Aug 27 19:35:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0EBC07F3F for ; Wed, 27 Aug 2014 19:35:25 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id F18BE304048 for ; Wed, 27 Aug 2014 17:35:21 -0700 (PDT) X-ASG-Debug-ID: 1409186118-04cb6c54fd60cf10001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id 3UUVLLQOh9EKYz5g for ; Wed, 27 Aug 2014 17:35:18 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApQWAJZ4/lN5LDJ8PGdsb2JhbABTCIMNgSqHM6dFAQEBAQIGnwGFcgGBExcFAQEBATg2hAMBAQQBOhwjBQsIAxgJJQ8FJQMHGhOIOge/ZBcYhWSEA4R3DUkHhEwFnFeWfx6BbisvgQcBHgaBIwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 28 Aug 2014 10:02:29 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMndb-0007AB-2g; Thu, 28 Aug 2014 10:32:27 +1000 Date: Thu, 28 Aug 2014 10:32:27 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140828003226.GO20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8c29baf987467a84f0b7c1d09c863662@localhost> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409186118 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8895 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Tue, Aug 26, 2014 at 12:19:43PM -0500, Stan Hoeppner wrote: > On Tue, 26 Aug 2014 17:53:45 +1000, Dave Chinner > wrote: > > On Tue, Aug 26, 2014 at 01:18:50AM -0500, Stan Hoeppner wrote: > >> Had some controller issues but believe we had those ironed out before > >> this > >> recent breakage. I had reformatted both 48TB LUNs on this test box > with > >> -f > >> and defaults, and fired up the test app again. Throughput was > fantastic > >> with no dropped application buffers for ~30 minutes, and IO times were > >> 1.x > >> ms max, suggesting all the writes were acked by controller cache. The > >> app > >> was running perfectly. Then it hanged and spit out an internal error > >> msg: > >> > >> > >> Failed to reopen file /mnt/VOL1/sg-04/str-0015/f-0000000005 > >> > >> I have many call traces in dmesg, most are XFS, pasted below. I found > no > >> SCSI I/O errors in dmesg. Application is submitting writes via libaio > >> and > >> using O_DIRECT, writing to preallocated files. I don't see any errors > in > >> the storage controller log and everything seems to check out there. > >> Using > >> noop elevator, mpt2sas, no multipathing. The application process is > hung > >> in d state and kill -9 won't get rid of it. I can't unmount the hosed > up > >> filesystem. Any ideas? > >> > >> # ls -la /mnt/VOL1 > >> ls: cannot access /mnt/VOL1: Input/output error > >> > >> # dd if=/mnt/VOL1 of=/dev/null bs=1M count=16 > >> dd: opening `/mnt/VOL1': Input/output error > >> > >> # dd if=/dev/sdd of=/dev/null bs=1M count=16 > >> 16+0 records in > >> 16+0 records out > >> 16777216 bytes (17 MB) copied, 1.10989 s, 15.1 MB/s > >> > >> # ls -la /mnt/ > >> ls: cannot access /mnt/VOL1: Input/output error > >> total 8 > >> drwxrwxrwt 6 root root 120 Aug 25 17:59 . > >> drwxr-xr-x 21 root root 4096 Jul 15 09:39 .. > >> drwxrwxrwt 3 root root 80 Aug 25 16:52 initramfs > >> drwxr-xr-x 3 root root 4096 Apr 24 04:57 scratch > >> drwxrwxrwx 5 root root 58 Aug 25 22:06 VOL0 > >> d????????? ? ? ? ? ? VOL1 > > > > That's an inode we failed to stat() - most likely because of the IO > > error. Has the filesystem shut down? the IO error shoul dhave had > > some kind of output in dmesg associated with it from XFS.... > > Sorry, I omitted the XFS logging preceding the first call trace: > > Aug 25 18:02:50 Anguish-ssu-1 kernel: [ 4280.310304] SGI XFS with security > attributes, large block/inode numbers, no debug enabled > Aug 25 18:02:50 Anguish-ssu-1 kernel: [ 4280.311101] XFS (sdc): Mounting > Filesystem > Aug 25 18:02:51 Anguish-ssu-1 kernel: [ 4280.501405] XFS (sdc): Starting > recovery (logdev: internal) > Aug 25 18:02:53 Anguish-ssu-1 kernel: [ 4282.766547] XFS (sdc): Failed to > recover EFIs > Aug 25 18:02:53 Anguish-ssu-1 kernel: [ 4282.766549] XFS (sdc): log mount > finish failed That's indicative of corrupted free space btrees. > Aug 25 18:04:50 Anguish-ssu-1 kernel: [ 4399.471829] XFS (sdc): Mounting > Filesystem > Aug 25 18:04:50 Anguish-ssu-1 kernel: [ 4399.620805] XFS (sdc): Ending > clean mount > Aug 25 18:04:56 Anguish-ssu-1 kernel: [ 4405.613778] XFS (sdd): Mounting > Filesystem > Aug 25 18:04:56 Anguish-ssu-1 kernel: [ 4405.835412] XFS (sdd): Ending > clean mount > Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): > xfs_do_force_shutdown(0x8) called from line 3732 of file fs/xfs/xfs_bmap.c. > Return address = 0xffffffffa01cc9a6 Yup, that's kinda important. That's from xfs_bmap_finish(), and freeing an extent has failed and triggered SHUTDOWN_CORRUPT_INCORE which it's found some kind of inconsistency in the free space btrees. So, likely the same problem that caused EFI recovery to fail on the other volume. Are the tests being run on newly made filesystems? If not, have these filesystems had xfs_repair run on them after a failure? If so, what is the error that is fixed? If not, does repairing the filesystem make the problem go away? > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307128] XFS (sdd): failed to > update timestamps for inode 0x2a000000a4 > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307484] XFS (sdd): failed to > update timestamps for inode 0x29000000a4 > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307487] XFS (sdd): failed to > update timestamps for inode 0x20000009f > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307499] XFS (sdd): failed to > update timestamps for inode 0x29000000a4 > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307693] XFS (sdd): failed to > update timestamps for inode 0x20000009f > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.368106] XFS (sdd): failed to > update timestamps for inode 0xf000000a4 > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.369785] XFS (sdd): failed to > update timestamps for inode 0xf000000a4 > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.605835] XFS (sdd): failed to > update timestamps for inode 0x2810f413c > Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.606169] XFS (sdd): failed to > update timestamps for inode 0x60000009f And that is interesting. Makes me wonder if the inode is getting unlocked on transaction commit failure, or whether there's some other path in the shutdown code that is not unlocking the inode correctly. > Again, when the app locked up I was assuming we had more controller > issues, and I expected to find SCSI I/O errors preceding the XFS errors. > But there are none. XFs has had some kind of internal error in extent or freespace management. The lack of output when the error has triggered makes it impossible to determine what might have gone wrong. Seeing what xfs_repair -n says about the filesystem woul dbe interesting. Probably best to use an xfs-repair from the current 3.2.1 release, because older 3.1.x versions (i think 3.1.10 and prior) didn't validate the freespace btrees - they just got rebuilt. > These aren't truly lab systems in all respects. I don't have the > permission/access to change the kernel config and recompile. There is a > "process" for that and a different group owns that process. If this is > necessary to troubleshoot this then I'll see if I can push it through. Good luck, it sounds like you might have a few stories for the Daily WTF if the "processes" at that so entrenched it's impossible to test fixes. > > I haven't cheked if this still works on a 3.4 kernel, but it will > > change the rwsem implementation to the generic, spinlock based > > implementation rather than the super-special, highly optimised > > x86 specific implementation. If that makes the problem go away, > > then we've got another rwsem bug on our hands. If it doesn't, then I > > can probably get you the mrlock debug code lachlan wrote and we can > > see if XFS is doing something wrong... > > Thanks for the detailed explanation. Given the new information I've > provided, what is my next step? xfs_repair output, turn /proc/sys/fs/xfs/error_level up to 11, maybe run a test with a CONFIG_XFS_DEBUG=y kernel, or even a current 3.15/3.16 kernel to see if the problem still exists... But if you can't get new kernels or xfsprogs binaries onto the machine, then there is very little that we can do. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Wed Aug 27 19:47:25 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 35B8E7F3F for ; Wed, 27 Aug 2014 19:47:25 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id E829E8F8071 for ; Wed, 27 Aug 2014 17:47:24 -0700 (PDT) X-ASG-Debug-ID: 1409186841-04bdf0109759ea20001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id ptmX44xODoLk8SfP for ; Wed, 27 Aug 2014 17:47:22 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApQWAO56/lN5LDJ8PGdsb2JhbABbgw2BKoczp0UBAQEBAgafAYVyAYETFwUBAQEBODaEBAEFJxMcIxAIAw4KCSUPBSUDBxoTiEG/ZBcYhWSJUAeETAWcV4waimccgW4rL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 28 Aug 2014 10:17:19 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMnrx-0007Bs-Sr; Thu, 28 Aug 2014 10:47:17 +1000 Date: Thu, 28 Aug 2014 10:47:17 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() Message-ID: <20140828004717.GP20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: refactor xlog_recover_process_data() References: <1409016101-9511-1-git-send-email-david@fromorbit.com> <1409016101-9511-2-git-send-email-david@fromorbit.com> <20140826124112.GB52815@bfoster.bfoster> <20140826223407.GM20518@dastard> <20140827111910.GB7431@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140827111910.GB7431@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409186841 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8895 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 27, 2014 at 07:19:10AM -0400, Brian Foster wrote: > On Wed, Aug 27, 2014 at 08:34:07AM +1000, Dave Chinner wrote: > > > > + switch (flags) { > > > > + /* expected flag values */ > > > > + case 0: > > > > + case XLOG_CONTINUE_TRANS: > > > > + error = xlog_recover_add_to_trans(log, trans, dp, hlen); > > > > + break; > > > > + case XLOG_WAS_CONT_TRANS: > > > > + error = xlog_recover_add_to_cont_trans(log, trans, dp, hlen); > > > > + break; > > > > + case XLOG_COMMIT_TRANS: > > > > + error = xlog_recover_commit_trans(log, trans, pass); > > > > + break; > > > > + > > > > + /* unexpected flag values */ > > > > + case XLOG_UNMOUNT_TRANS: > > > > + xfs_warn(log->l_mp, "%s: Unmount LR", __func__); > > > > + error = 0; > > > > + break; > > > > + case XLOG_START_TRANS: > > > > + xfs_warn(log->l_mp, "%s: bad transaction 0x%x", __func__, tid); > > > > + ASSERT(0); > > > > + break; > > > > > > xlog_recover_new_tid(&rhash[hash], tid, be64_to_cpu(rhead->h_lsn) > > > error = 0; > > > break; > > > > > > > I like the idea, but I don't like the suggested implementation. I > > was in two minds as to whether I should factor > > xlog_recover_find_tid() further. There's only one caller of it and > > only one caller of xlog_recover_new_tid() and the happen within > > three lines of each other. Hence I'm thinking that it makes more > > sense to wrap the "find or allocate trans" code in a single helper > > and lift all that logic clean out of this function. That helper can > > handle all the XLOG_START_TRANS logic more cleanly, I think.... > > > > Fair enough, that sounds reasonable so long as it isn't pulling the core > state management off into disparate functions. What I like about the > above (combined with the result of the rest of this series) is that the > lifecycle is obvious and contained in a single block of code. Well, it's not "state" as in "state machine". What we are doing is decoding ophdrs, not walking through a state machine, and so I think that the "start" ophdrs need to be treated differently because all the other types of ophdrs have a dependency on the trans structure existing. Indeed, I suspect the correct thing to do is check for the start flag *first*, before we do the lookup to find the trans structure, because the start flag implies that we should not find an existing trans structure for that tid. And once we've done that, we're completely finished processing that ophdr, and hence should return and not run any of the other code we run for all the remaining ophdrs. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Wed Aug 27 21:09:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id BAA1C7F3F for ; Wed, 27 Aug 2014 21:09:15 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id A8D7B304053 for ; Wed, 27 Aug 2014 19:09:15 -0700 (PDT) X-ASG-Debug-ID: 1409191749-04cb6c54fe60f7d0001-NocioJ Received: from ipmail04.adl6.internode.on.net (ipmail04.adl6.internode.on.net [150.101.137.141]) by cuda.sgi.com with ESMTP id ofcXLaG9Ar92eNxo for ; Wed, 27 Aug 2014 19:09:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.141 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtUUAAeP/lN5LDJ8PGdsb2JhbABbgw2BKoIshQenRwEFBp8BhXIBgRYXBQEBAQE4NoQDAQEEATocIwULCAMYCSUPBSUDBxoTG4gfB79ZFxiFZIhlaweETAWPG4h7hEGZCysvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail04.adl6.internode.on.net with ESMTP; 28 Aug 2014 11:38:21 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMp8N-0007Mq-Az; Thu, 28 Aug 2014 12:08:19 +1000 Date: Thu, 28 Aug 2014 12:08:19 +1000 From: Dave Chinner To: Zhang Qiang Cc: Greg Freemyer , xfs-oss Subject: Re: bad performance on touch/cp file on XFS system Message-ID: <20140828020819.GQ20518@dastard> X-ASG-Orig-Subj: Re: bad performance on touch/cp file on XFS system References: <20140825051801.GY26465@dastard> <20140825090843.GE20518@dastard> <20140825222657.GF20518@dastard> <20140826023754.GH20518@dastard> <20140826131354.GK20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail04.adl6.internode.on.net[150.101.137.141] X-Barracuda-Start-Time: 1409191749 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.75 X-Barracuda-Spam-Status: No, SCORE=0.75 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_RULE_7580G X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8897 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.75 BSF_RULE_7580G Custom Rule 7580G On Wed, Aug 27, 2014 at 04:53:17PM +0800, Zhang Qiang wrote: > 2014-08-26 21:13 GMT+08:00 Dave Chinner : > > > On Tue, Aug 26, 2014 at 06:04:52PM +0800, Zhang Qiang wrote: > > > Thanks Dave/Greg for your analysis and suggestions. > > > > > > I can summarize what I should do next: > > > > > > - backup my data using xfsdump > > > - rebuilt filesystem using mkfs with options: agcount=32 for 2T disk > > > - mount filesystem with option inode64,nobarrier > > > > Ok up to here. > > > > > - applied patches about adding free list inode on disk structure > > > > No, don't do that. You're almost certain to get it wrong and corrupt > > your filesysetms and lose data. > > > > > As we have about ~100 servers need back up, so that will take much > > effort, > > > do you have any other suggestion? > > > > Just remount them with inode64. Nothing else. Over time as you add > > and remove files the inodes will redistribute across all 4 AGs. > > > OK. > > How I can see the layout number of inodes on each AGs? Here's my checking > steps: > > 1) Check unmounted file system first: > [root@fstest data1]# xfs_db -c "sb 0" -c "p" /dev/sdb1 |egrep > 'icount|ifree' > icount = 421793920 > ifree = 41 > [root@fstest data1]# xfs_db -c "sb 1" -c "p" /dev/sdb1 |egrep > 'icount|ifree' > icount = 0 > ifree = 0 That's wrong. You need to check the AGI headers, not the superblock. Only the primary superblock gets updated, and it's the aggregated of all the AGI values, not the per AG values. And, BTW, that's *421 million* inodes in that filesystem. Almost twice as many as the filesystem you started showing problems on... > OK, this is a social networking website back end servers, actually the CDN > infrastructure, and different server located different cities. > We have a global sync script to make all these 100 servers have the same > data. > > For each server we use RAID10 and XFS (CentOS6.3). > > There are about 3M files (50K in size) generated every day, and we track > the path of each files in database. I'd suggest you are overestimating the size of the files being storedi by an order of magnitude: 200M files at 50k in size is 10TB, not 1.5TB. But you've confirmed exactly what I thought - you're using the filesystem as an anonymous object store for hundreds of millions of small objects and that's exactly the situation I'd expect to see these problems.... > Do you have any suggestions to improve our solution? TANSTAAFL. I've given you some stuff to try, worst case is reformating and recopying all the data around. I don't really have much time to do much more than that - talk to Red Hat (because you are using CentOS) if you want help with a more targeted solution to your problem... Cheers, Dave. -- Dave Chinner david@fromorbit.com From iusty@k1024.org Wed Aug 27 23:23:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 741527F3F for ; Wed, 27 Aug 2014 23:23:13 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id E655EAC006 for ; Wed, 27 Aug 2014 21:23:12 -0700 (PDT) X-ASG-Debug-ID: 1409199789-04cbb0548789df20001-NocioJ Received: from mail-we0-f181.google.com (mail-we0-f181.google.com [74.125.82.181]) by cuda.sgi.com with ESMTP id WE5F0qkHvzMHwGq7 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 27 Aug 2014 21:23:10 -0700 (PDT) X-Barracuda-Envelope-From: iusty@k1024.org X-Barracuda-Apparent-Source-IP: 74.125.82.181 Received: by mail-we0-f181.google.com with SMTP id x48so181764wes.12 for ; Wed, 27 Aug 2014 21:23:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=1pDVAvpQb2+cP7mG2DyItOurOJ4MnxOPclxCNUiV5iA=; b=gLlZ+lH6qiHUbOcBlChLs1KXFs+X/+TRxzEHohYsf5Le8Dds/rBPP83lptbNc3HgMl XeKhTwJ3g4hvGdjllu8Gg0z96rPu7orzDIr8IGAds1HurbF9Qt2ded4z98Tbfwa1/gYA 0w2QYCbUNkGzw9LM85D1bgArLQGhXsuzo+wupi2dVryJAJ+sMy+/d6cqVEQo+i1TBrki 0DRXCq6Ur8eWIK4mqjVK7xIe+uTQ96wZ6YDcfUJgyi8hPA0UccLxzgKRwQbo8eIzoxHr +AGB8Y5iWLVIlFDRWwtAbK1ii7CliMGx6oHbKHdnb+tZlmybw13haxYyQm0zfZrFONPA dzHQ== X-Gm-Message-State: ALoCoQkhtBOy2rHUGVkknEkZa1vkrXjSu2r4p9d97pzR52PCkSob6iYlrwPrlsg3blSUflIqgC9m X-Received: by 10.180.86.8 with SMTP id l8mr33432569wiz.18.1409199789449; Wed, 27 Aug 2014 21:23:09 -0700 (PDT) Received: from teal.hq.k1024.org (178-83-234-80.dynamic.hispeed.ch. [178.83.234.80]) by mx.google.com with ESMTPSA id cj2sm30968549wid.23.2014.08.27.21.23.08 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 27 Aug 2014 21:23:08 -0700 (PDT) Received: from teal.hq.k1024.org (localhost.localdomain [127.0.0.1]) by teal.hq.k1024.org (Postfix) with ESMTP id B0573205C79; Thu, 28 Aug 2014 06:23:07 +0200 (CEST) From: Iustin Pop To: xfs@oss.sgi.com Cc: hch@infradead.org, Iustin Pop Subject: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories Date: Wed, 27 Aug 2014 21:22:53 -0700 X-ASG-Orig-Subj: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories Message-Id: <1409199773-16802-1-git-send-email-iusty@k1024.org> X-Mailer: git-send-email 2.1.0.rc1 In-Reply-To: <20140718191314.GB27801@teal.hq.k1024.org> References: <20140718191314.GB27801@teal.hq.k1024.org> X-Barracuda-Connect: mail-we0-f181.google.com[74.125.82.181] X-Barracuda-Start-Time: 1409199790 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8901 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Currently, the ioctl handling code for XFS_IOC_FSSETXATTR treats all targets as regular files: it refuses to change the extent size if extents are allocated. This is wrong for directories, as there the extent size is only used as a default for children. The patch fixes this by only checking for allocated extents for regular files; it leaves undefined what it means to set an extent size on a non-regular, non-directory inode. Additionally, when setting a non-zero extent size, the appropriate flags (EXTSIZE, respectively EXTSZINHERIT) are enforced for regular files and directories. Signed-off-by: Iustin Pop --- A patch against xfstests to test for the fixed behaviour will follow shortly. fs/xfs/xfs_ioctl.c | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 8bc1bbc..5b9acd2 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -1116,14 +1116,32 @@ xfs_ioctl_setattr( } if (mask & FSX_EXTSIZE) { - /* - * Can't change extent size if any extents are allocated. - */ - if (ip->i_d.di_nextents && - ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != - fa->fsx_extsize)) { - code = XFS_ERROR(EINVAL); /* EFBIG? */ - goto error_return; + if (S_ISDIR(ip->i_d.di_mode)) { + /* + * Enforce setting the EXTSZINHERIT flag when + * a non-zero extent size has been specified. + */ + if (fa->fsx_extsize) { + fa->fsx_xflags |= XFS_XFLAG_EXTSZINHERIT; + } + } else if (S_ISREG(ip->i_d.di_mode)) { + /* + * For a regular file, we can't change extent + * size if any extents are allocated. + */ + if (ip->i_d.di_nextents && + ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != + fa->fsx_extsize)) { + code = XFS_ERROR(EINVAL); /* EFBIG? */ + goto error_return; + } + /* + * Enforce setting the EXTSIZE flag when + * a non-zero extent size has been specified. + */ + if (fa->fsx_extsize) { + fa->fsx_xflags |= XFS_XFLAG_EXTSIZE; + } } /* -- 2.1.0 From iusty@k1024.org Wed Aug 27 23:24:06 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 943C97F3F for ; Wed, 27 Aug 2014 23:24:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 228BEAC005 for ; Wed, 27 Aug 2014 21:24:06 -0700 (PDT) X-ASG-Debug-ID: 1409199843-04cb6c54ff613cb0001-NocioJ Received: from mail-wi0-f176.google.com (mail-wi0-f176.google.com [209.85.212.176]) by cuda.sgi.com with ESMTP id JplefIzonbOlFJj8 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Wed, 27 Aug 2014 21:24:04 -0700 (PDT) X-Barracuda-Envelope-From: iusty@k1024.org X-Barracuda-Apparent-Source-IP: 209.85.212.176 Received: by mail-wi0-f176.google.com with SMTP id bs8so6806787wib.3 for ; Wed, 27 Aug 2014 21:24:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=fQkEkjPOL8csJdxauRSOct0K2/kXqxfKsxitVKLdz5Q=; b=JD7viEG/vxUHFigboqTFCf/3urXAEPVFJzFDViGRjLWy3eeps6SbskEFcv5KoHfaex 1UAZQCyPAyq6Uul1s8xWUcIUjY7ihHeBzqLTMeEIU4ZeTBJVfhpnzRcjehhNvuxapPjx SLpFDj5OtxSNfIWZZGUo9/hINAUCjs8xF+3YCtABLmWg36VnhCtZjyf/vFjxI+YB5qOC kGuewE4/YU3dkDCDVQTfMtELh5aNQlOyIlQyjiPjdc2r/U0WqOWf0oQ8Qs54iNpM9il8 LFBAQgkxaWGLhjyWR8VmlRPQ0kn/fv7fheINZV1z3dPf2GIGMHAIsHOazsC/cC/awZh5 A2VQ== X-Gm-Message-State: ALoCoQlVAWrRMgK1+fCh1Lr/DQOhhL7AbrhMB5yCvNqXr82D2SaEW28Aj7O+UbJoxnkabXfd+8px X-Received: by 10.194.59.18 with SMTP id v18mr1938195wjq.64.1409199843061; Wed, 27 Aug 2014 21:24:03 -0700 (PDT) Received: from teal.hq.k1024.org (178-83-234-80.dynamic.hispeed.ch. [178.83.234.80]) by mx.google.com with ESMTPSA id dc9sm31123482wib.5.2014.08.27.21.24.02 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 27 Aug 2014 21:24:02 -0700 (PDT) Received: from teal.hq.k1024.org (localhost.localdomain [127.0.0.1]) by teal.hq.k1024.org (Postfix) with ESMTP id B9FC3205C79; Thu, 28 Aug 2014 06:24:01 +0200 (CEST) From: Iustin Pop To: xfs@oss.sgi.com Cc: hch@infradead.org, Iustin Pop Subject: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour Date: Wed, 27 Aug 2014 21:24:00 -0700 X-ASG-Orig-Subj: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour Message-Id: <1409199840-16907-1-git-send-email-iusty@k1024.org> X-Mailer: git-send-email 2.1.0.rc1 In-Reply-To: <20140718191314.GB27801@teal.hq.k1024.org> References: <20140718191314.GB27801@teal.hq.k1024.org> X-Barracuda-Connect: mail-wi0-f176.google.com[209.85.212.176] X-Barracuda-Start-Time: 1409199843 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8900 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Add two tests that check for correct behaviour of XFS_IOC_FSSETXATTR: - 307: check that extent size can always be set on a directory - 308: check that setting a non-zero extent size directly via the ioctl sets the expected flags (EXTSIZE and EXTSZINHERIT) Signed-off-by: Iustin Pop --- tests/xfs/307 | 87 ++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/307.out | 3 ++ tests/xfs/308 | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/308.out | 3 ++ tests/xfs/group | 2 ++ 5 files changed, 193 insertions(+) create mode 100755 tests/xfs/307 create mode 100644 tests/xfs/307.out create mode 100755 tests/xfs/308 create mode 100644 tests/xfs/308.out diff --git a/tests/xfs/307 b/tests/xfs/307 new file mode 100755 index 0000000..e8f3576 --- /dev/null +++ b/tests/xfs/307 @@ -0,0 +1,87 @@ +#! /bin/bash +# FS QA Test No. 307 +# +# Test that setting extent size on directories work even for large +# directories. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Google Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_test +_require_scratch + +_scratch_mkfs_xfs >/dev/null 2>&1 +_scratch_mount + +small=$SCRATCH_MNT/small +big=$SCRATCH_MNT/big + +# sanity check on a small directory +mkdir $small +# expect that an empty directory has no extents +xfs_bmap $small | grep -q "no extents" +# and that we can set an extent size on it +xfs_io -c 'extsize 8m' $small +# and finally check that the extent size update has taken place +(cd $SCRATCH_MNT; xfs_io -c 'extsize' small) + +# now create a 'big' (with extents) directory +mkdir $big +idx=1 +while xfs_bmap $big | grep -q "no extents"; do + touch $big/$idx + idx=$((idx+1)) + if [ "$idx" -gt 1048576 ]; then + # still no extents? giving up + echo "Can't make a directory to have extents even after 1M files" 1>&2 + exit + fi +done + +# expect that we can set the extent size on $big as well +xfs_io -c 'extsize 8m' $big +# and that it took effect +(cd $SCRATCH_MNT; xfs_io -c 'extsize' big) + +# success, all done +status=0 +exit diff --git a/tests/xfs/307.out b/tests/xfs/307.out new file mode 100644 index 0000000..f825525 --- /dev/null +++ b/tests/xfs/307.out @@ -0,0 +1,3 @@ +QA output created by 307 +[8388608] small +[8388608] big diff --git a/tests/xfs/308 b/tests/xfs/308 new file mode 100755 index 0000000..7b43836 --- /dev/null +++ b/tests/xfs/308 @@ -0,0 +1,98 @@ +#! /bin/bash +# FS QA Test No. 308 +# +# Test that setting extent size on files and directories (directly via +# ioctl and not via xfs_io) sets the correct flags. +# +#----------------------------------------------------------------------- +# Copyright (c) 2014 Google Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# real QA test starts here + +# Modify as appropriate. +_supported_fs xfs +_supported_os Linux +_require_test +_require_scratch + +_scratch_mkfs_xfs >/dev/null 2>&1 +_scratch_mount + +file=$SCRATCH_MNT/file +dir=$SCRATCH_MNT/dir +cprog=$tmp.get_structs.c +oprog=$tmp.get_structs + +touch $file +mkdir $dir + +cat > $cprog << EOF +#include +#include + +int main(int argc, char **argv) { + struct fsxattr fa; + int fd = open(argv[1], O_RDONLY); + if (fd < 0) { + perror("open"); + return 1; + } + fa.fsx_xflags = 0; + fa.fsx_extsize = 1048576 * 8; + int r = xfsctl(argv[1], fd, XFS_IOC_FSSETXATTR, &fa); + if (r < 0) { + perror("xfsctl"); + return 1; + } + return 0; +} +EOF +cc -o $oprog $cprog >> $seqres.full 2>&1 || \ + _notrun "Could not compile test program (see end of $seqres.full)" + +$oprog $file +$oprog $dir +(cd $SCRATCH_MNT; + xfs_io -c 'lsattr' file; + xfs_io -c 'lsattr' dir) + +rm $file +rmdir $dir + +# success, all done +status=0 +exit diff --git a/tests/xfs/308.out b/tests/xfs/308.out new file mode 100644 index 0000000..ef2d5fd --- /dev/null +++ b/tests/xfs/308.out @@ -0,0 +1,3 @@ +QA output created by 308 +----------e--- file +-----------E-- dir diff --git a/tests/xfs/group b/tests/xfs/group index 4d35df5..35f1e6a 100644 --- a/tests/xfs/group +++ b/tests/xfs/group @@ -197,3 +197,5 @@ 304 auto quick quota 305 auto quota 306 auto stress log metadata repair +307 ioctl quick +308 ioctl quick -- 2.1.0 From shengyehong@mdesafe.com Thu Aug 28 04:29:08 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING,HTML_MESSAGE, MIME_QP_LONG_LINE,UNPARSEABLE_RELAY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0163F7F3F for ; Thu, 28 Aug 2014 04:29:08 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id E417A304039 for ; Thu, 28 Aug 2014 02:29:04 -0700 (PDT) X-ASG-Debug-ID: 1409218141-04cb6c54ff61e130001-NocioJ Received: from us-alimail-mta2.hst.scl.en.alidc.net (out113-248.biz.mail.alibaba.com [205.204.113.248]) by cuda.sgi.com with ESMTP id sLHVQYGmWQ0wHiaQ for ; Thu, 28 Aug 2014 02:29:02 -0700 (PDT) X-Barracuda-Envelope-From: shengyehong@mdesafe.com X-Barracuda-Apparent-Source-IP: 205.204.113.248 Received: from WS-web by r41g03013.xy2.aliyun.com at Thu, 28 Aug 2014 17:27:20 +0800 Date: Thu, 28 Aug 2014 17:27:17 +0800 From: Sender: To: Message-ID: Subject: =?UTF-8?B?UkU6IFNhZmUgQm94?= X-Priority: 1 X-ASG-Orig-Subj: =?UTF-8?B?UkU6IFNhZmUgQm94?= X-Mailer: Alimail-Mailagent MIME-Version: 1.0 X-Priority: 1 X-Mailer: Alimail-Mailagent revision 2652425 Sender: Content-Type: multipart/alternative; boundary="----=ALIBOUNDARY_6990_4c716940_53fef5f8_3f45" X-Barracuda-Connect: out113-248.biz.mail.alibaba.com[205.204.113.248] X-Barracuda-Start-Time: 1409218141 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 1.02 X-Barracuda-Spam-Status: No, SCORE=1.02 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA038b, HTML_MESSAGE, MIME_QP_LONG_LINE, MIME_QP_LONG_LINE_2, NO_REAL_NAME, UNPARSEABLE_RELAY X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8907 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 NO_REAL_NAME From: does not include a real name 0.00 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 MIME_QP_LONG_LINE RAW: Quoted-printable line longer than 76 chars 0.82 MIME_QP_LONG_LINE_2 RAW: Quoted-printable line longer than 76 chars 0.20 BSF_SC0_SA038b Custom Rule SA038b ------=ALIBOUNDARY_6990_4c716940_53fef5f8_3f45 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Dear Sir hello,=0D=0A=0D=0A=0D=0AGlad to learn that you're looking for Hotel s= afe! =0D=0A=0D=0A=0D=0AWe supply Hotel Safes/ Deposit Safes / Minibar/ Finance= safes/ Fire safe and other safes with high quality and good price. 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------=ALIBOUNDARY_6990_4c716940_53fef5f8_3f45-- From david@fromorbit.com Thu Aug 28 04:32:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id DF4FC7F4E for ; Thu, 28 Aug 2014 04:32:04 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 7858BAC005 for ; Thu, 28 Aug 2014 02:32:04 -0700 (PDT) X-ASG-Debug-ID: 1409218321-04bdf0109a5b15c0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 36BvM4Fcl3lqlqp3 for ; Thu, 28 Aug 2014 02:32:02 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AtQUAGX2/lN5LDJ8PGdsb2JhbABbgw2BKoIshQenRwEFBp8BhXIBgRoXBQEBAQE4NoQEAQUnExwjEAgDDgoJJQ8FJQMHGhOIQb8nFxiFZIlQB4RMBZxXjBqMcSsvgQgkgSMBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 19:02:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMw3i-0008Gb-BC; Thu, 28 Aug 2014 19:31:58 +1000 Date: Thu, 28 Aug 2014 19:31:58 +1000 From: Dave Chinner To: Iustin Pop Cc: xfs@oss.sgi.com, hch@infradead.org Subject: Re: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories Message-ID: <20140828093158.GR20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories References: <20140718191314.GB27801@teal.hq.k1024.org> <1409199773-16802-1-git-send-email-iusty@k1024.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409199773-16802-1-git-send-email-iusty@k1024.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409218322 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8907 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Wed, Aug 27, 2014 at 09:22:53PM -0700, Iustin Pop wrote: > Currently, the ioctl handling code for XFS_IOC_FSSETXATTR treats all > targets as regular files: it refuses to change the extent size if > extents are allocated. This is wrong for directories, as there the > extent size is only used as a default for children. > > The patch fixes this by only checking for allocated extents for regular > files; it leaves undefined what it means to set an extent size on a > non-regular, non-directory inode. Additionally, when setting a non-zero > extent size, the appropriate flags (EXTSIZE, respectively EXTSZINHERIT) > are enforced for regular files and directories. > > Signed-off-by: Iustin Pop > --- > A patch against xfstests to test for the fixed behaviour will follow > shortly. > > fs/xfs/xfs_ioctl.c | 34 ++++++++++++++++++++++++++-------- > 1 file changed, 26 insertions(+), 8 deletions(-) > > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > index 8bc1bbc..5b9acd2 100644 > --- a/fs/xfs/xfs_ioctl.c > +++ b/fs/xfs/xfs_ioctl.c > @@ -1116,14 +1116,32 @@ xfs_ioctl_setattr( > } > > if (mask & FSX_EXTSIZE) { > - /* > - * Can't change extent size if any extents are allocated. > - */ > - if (ip->i_d.di_nextents && > - ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != > - fa->fsx_extsize)) { > - code = XFS_ERROR(EINVAL); /* EFBIG? */ > - goto error_return; Doesn't apply to a current 3.17-rc1 tree. Can you update the patch? > + if (S_ISDIR(ip->i_d.di_mode)) { > + /* > + * Enforce setting the EXTSZINHERIT flag when > + * a non-zero extent size has been specified. > + */ > + if (fa->fsx_extsize) { > + fa->fsx_xflags |= XFS_XFLAG_EXTSZINHERIT; > + } > + } else if (S_ISREG(ip->i_d.di_mode)) { > + /* > + * For a regular file, we can't change extent > + * size if any extents are allocated. > + */ > + if (ip->i_d.di_nextents && > + ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != > + fa->fsx_extsize)) { > + code = XFS_ERROR(EINVAL); /* EFBIG? */ > + goto error_return; > + } > + /* > + * Enforce setting the EXTSIZE flag when > + * a non-zero extent size has been specified. > + */ > + if (fa->fsx_extsize) { > + fa->fsx_xflags |= XFS_XFLAG_EXTSIZE; > + } > } Hmmmm. That's not validating/enforcing the correct use of XFS_XFLAG_EXTSIZE or XFS_XFLAG_EXTSZINHERIT, that's setting it implicitly based on the type of inode. If we are going to enforce this properly, then XFS_XFLAG_EXTSIZE is only valid for a regular file, and XFS_XFLAG_EXTSZINHERIT is only valid on a directory, and the flags on th einode should only be set if the hint is not zero. i.e: if (mask & FSX_EXTSIZE) { error = -EINVAL; /* validate the flags are set appropriately */ if ((fa->fsx_xflags & XFS_XFLAG_EXTSIZE) && !S_ISREG(ip->i_d.di_mode)) goto error_return; if ((fa->fsx_xflags & XFS_XFLAG_EXTSZINHERIT) && !S_ISDIR(ip->i_d.di_mode)) goto error_return; /* Can't change extent size on regular files with allocated extents */ if (S_ISREG(ip->i_d.di_mode) && ip->i_d.di_nextents && ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != fa->fsx_extsize)) goto error_return; /* if the extent size is zero, clear the inode flags */ if (fs->fsx_extsize == 0) fa->fsx_xflags &= ~(XFS_XFLAG_EXTSIZE | XFS_XFLAG_EXTSZINHERIT); } else { /* existing size check code */ .... } } Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 28 05:16:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id DA30E7F3F for ; Thu, 28 Aug 2014 05:16:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id C82728F8054 for ; Thu, 28 Aug 2014 03:16:34 -0700 (PDT) X-ASG-Debug-ID: 1409220991-04cb6c54ff61fd00001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 8HGckVHsqhAZWEqC for ; Thu, 28 Aug 2014 03:16:32 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvQUAC0B/1N5LDJ8PGdsb2JhbABbgw1TV4IshQenOwwBBQaFVJdIgWWFcgGBHBcFAQEBATg2hAMBAQQBOhwjBQsIAw4KCSUPBSUDBxoTiDoHv1UYhWSIbhEBUAeETAWFBAKBDY9JhnuBXIo+jHErL4EPgUABAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 19:46:30 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XMwkm-0008Nd-7j; Thu, 28 Aug 2014 20:16:28 +1000 Date: Thu, 28 Aug 2014 20:16:28 +1000 From: Dave Chinner To: Iustin Pop Cc: xfs@oss.sgi.com, hch@infradead.org, fstests@vger.kernel.org Subject: Re: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour Message-ID: <20140828101628.GS20518@dastard> X-ASG-Orig-Subj: Re: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour References: <20140718191314.GB27801@teal.hq.k1024.org> <1409199840-16907-1-git-send-email-iusty@k1024.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409199840-16907-1-git-send-email-iusty@k1024.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409220991 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8908 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- [cc fstests@vger.kernel.org] On Wed, Aug 27, 2014 at 09:24:00PM -0700, Iustin Pop wrote: > Add two tests that check for correct behaviour of XFS_IOC_FSSETXATTR: > > - 307: check that extent size can always be set on a directory > - 308: check that setting a non-zero extent size directly via the ioctl > sets the expected flags (EXTSIZE and EXTSZINHERIT) > > Signed-off-by: Iustin Pop Minor stuff first: - xfstests patches should be sent to fstests@vger.kernel.org now. - can you pick the first unused numbers in the sequence for new tests (xfs/032, xfs/051) so I don't have to renumber them before applying them? - a patch per new test - it makes it easier to review and apply as i don't have to split patches into multiple commits... > diff --git a/tests/xfs/307 b/tests/xfs/307 > new file mode 100755 > index 0000000..e8f3576 > --- /dev/null > +++ b/tests/xfs/307 > @@ -0,0 +1,87 @@ > +#! /bin/bash > +# FS QA Test No. 307 > +# > +# Test that setting extent size on directories work even for large > +# directories. What is a "large directory"? Wouldn't it be better to describe the test as "Determine whether the extent size hint can be set on directories with allocated extents correctly"? > +# > +#----------------------------------------------------------------------- > +# Copyright (c) 2014 Google Inc. All Rights Reserved. Is that correct? It doesn't match the email address you sent this from and I've never seen you post from a @google.com address. I always like to check that the copyright assignment is correct in situations like this... > +# real QA test starts here > + > +# Modify as appropriate. > +_supported_fs xfs > +_supported_os Linux > +_require_test Not needed, doesn't use the test device. > +_require_scratch > + > +_scratch_mkfs_xfs >/dev/null 2>&1 > +_scratch_mount > + > +small=$SCRATCH_MNT/small > +big=$SCRATCH_MNT/big > + > +# sanity check on a small directory > +mkdir $small > +# expect that an empty directory has no extents > +xfs_bmap $small | grep -q "no extents" Better to use xfs_io directly and filter out $SCRATCH_MNT into the golden output file like so: $XFS_IO_PROG -c "bmap" $small | _filter_scratch which will give: SCRATCH_MNT/small: no extents > +# and that we can set an extent size on it > +xfs_io -c 'extsize 8m' $small $XFS_IO_PROG > +# and finally check that the extent size update has taken place > +(cd $SCRATCH_MNT; xfs_io -c 'extsize' small) $XFS_IO_PROG -c 'extsize' $small | _filter_scratch > +# now create a 'big' (with extents) directory > +mkdir $big > +idx=1 > +while xfs_bmap $big | grep -q "no extents"; do > + touch $big/$idx > + idx=$((idx+1)) > + if [ "$idx" -gt 1048576 ]; then > + # still no extents? giving up > + echo "Can't make a directory to have extents even after 1M files" 1>&2 > + exit > + fi > +done urk. largest inode size is 2kb, which means at most it can fit less than 100 dirents in the inode before spilling to extent form. So just do a loop that creates 1000 files - there's no need to overengineer the test code. > +# expect that we can set the extent size on $big as well > +xfs_io -c 'extsize 8m' $big $XFS_IO_PROG > +# and that it took effect > +(cd $SCRATCH_MNT; xfs_io -c 'extsize' big) $XFS_IO_PROG -c 'extsize' $big | _filter_scratch > + > +# success, all done > +status=0 > +exit > diff --git a/tests/xfs/307.out b/tests/xfs/307.out > new file mode 100644 > index 0000000..f825525 > --- /dev/null > +++ b/tests/xfs/307.out > @@ -0,0 +1,3 @@ > +QA output created by 307 > +[8388608] small > +[8388608] big > diff --git a/tests/xfs/308 b/tests/xfs/308 > new file mode 100755 > index 0000000..7b43836 > --- /dev/null > +++ b/tests/xfs/308 > @@ -0,0 +1,98 @@ > +#! /bin/bash > +# FS QA Test No. 308 > +# > +# Test that setting extent size on files and directories (directly via > +# ioctl and not via xfs_io) sets the correct flags. xfs_io uses the ioctl directly - there's no need to write a special c program to do this, especially as.... > +touch $file > +mkdir $dir > + > +cat > $cprog << EOF > +#include > +#include > + > +int main(int argc, char **argv) { > + struct fsxattr fa; > + int fd = open(argv[1], O_RDONLY); > + if (fd < 0) { > + perror("open"); > + return 1; > + } > + fa.fsx_xflags = 0; > + fa.fsx_extsize = 1048576 * 8; > + int r = xfsctl(argv[1], fd, XFS_IOC_FSSETXATTR, &fa); .... that code is quite broken. Yes, it would work to set the appropriate extent size flags with the kernel changes you made, but that's not how this ioctl works. i.e. it will cause any flag bits that are set on the inode to be cleared and it's likely to fail on old kernels beacuse they have very different behaviour to what your patch does. IOWs, setting fsx_extsize without setting either XFS_XFLAG_EXTSIZE or XFS_XFLAG_EXTSZINHERIT is bad practice. The kernel is left to guess what you actually wanted to be done - the flags are supposed to tell the kernel that the fsx_extsize value is meaningful, not the other way around. FWIW, the xfs_io code is *exactly* what applications should be doing to set the extent size or any other inode flag. i.e: 1. stat the fd to determine the type. 2. populate the fsxattr structure with the existing inode flags 3. change the flags/fields of the fsxattr structure appropriately 4. set the new values to the inode. i.e, from io/open.c: static int set_extsize(const char *path, int fd, long extsz) { struct fsxattr fsx; struct stat64 stat; if (fstat64(fd, &stat) < 0) { perror("fstat64"); return 0; } if ((xfsctl(path, fd, XFS_IOC_FSGETXATTR, &fsx)) < 0) { printf("%s: XFS_IOC_FSGETXATTR %s: %s\n", progname, path, strerror(errno)); return 0; } if (S_ISREG(stat.st_mode)) { fsx.fsx_xflags |= XFS_XFLAG_EXTSIZE; } else if (S_ISDIR(stat.st_mode)) { fsx.fsx_xflags |= XFS_XFLAG_EXTSZINHERIT; } else { printf(_("invalid target file type - file %s\n"), path); return 0; } fsx.fsx_extsize = extsz; if ((xfsctl(path, fd, XFS_IOC_FSSETXATTR, &fsx)) < 0) { printf("%s: XFS_IOC_FSSETXATTR %s: %s\n", progname, path, strerror(errno)); return 0; } return 0; } We have xfs_io precisely so that we don't have to maintain random test code like this throughout xfstests - do it once, do it right, use it everywhere. Cheers, Dave. -- Dave Chinner david@fromorbit.com From dgc@oss.sgi.com Thu Aug 28 06:04:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id 86C3D7F47; Thu, 28 Aug 2014 06:04:11 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, master, updated. xfs-for-linus-3.17-rc1-13176-g52addcf X-Git-Refname: refs/heads/master X-Git-Reftype: branch X-Git-Oldrev: a497c3ba1d97fc69c1e78e7b96435ba8c2cb42ee X-Git-Newrev: 52addcf9d6669fa439387610bc65c92fa0980cef Message-Id: <20140828110411.86C3D7F47@oss.sgi.com> Date: Thu, 28 Aug 2014 06:04:10 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, master has been updated 645f985 Merge branch 'xfs-misc-fixes-3.17-2' into for-next b076d87 Merge branch 'xfs-bulkstat-refactor' into for-next 4d7eece Merge branch 'xfs-misc-fixes-3.17-1' into for-next e0ac6d4 Merge branch 'xfs-quota-eofblocks-scan' into for-next 6eee897 xfs: fix coccinelle warnings 4ef897a xfs: flush both inodes in xfs_swap_extents 8121768 xfs: fix swapext ilock deadlock b92cc59 xfs: kill xfs_vnode.h dd8c38b xfs: kill VN_MAPPED 2667c6f xfs: kill VN_CACHED eac152b xfs: kill VN_DIRTY() ad3714b xfs: dquot recovery needs verifiers 5fd364f xfs: quotacheck leaves dquot buffers without verifiers 67dc288 xfs: ensure verifiers are attached to recovered buffers 400b9d8 xfs: catch buffers written without verifiers attached 5ef828c xfs: avoid false quotacheck after unclean shutdown eedf32b xfs: fix rounding error of fiemap length parameter 1e773c4 xfs: introduce xfs_bulkstat_ag_ichunk d5cf09b xfs: require 64-bit sector_t 74dc93a xfs: fix uflags detection at xfs_fs_rm_xquota 7b409a7 xfs: remove XFS_IS_OQUOTA_ON macros 54aa61f xfs: tidy up xfs_set_inode32 9de67c3 xfs: allow inode allocations in post-growfs disk space eb866bb xfs: mark xfs_qm_quotacheck as static 5c18717 xfs: fix cil push sequence after log recovery f074051 xfs: squash prealloc while over quota free space as well dc06f398 xfs: run an eofblocks scan on ENOSPC/EDQUOT f452639 xfs: support a union-based filter for eofblocks scans 5400da7 xfs: add scan owner field to xfs_eofblocks f3d1e58 xfs: introduce xfs_bulkstat_grab_ichunk 4b8fdfe xfs: introduce xfs_bulkstat_ichunk_ra d4c2734 xfs: fix error handling at xfs_bulkstat 296dfd7 xfs: remove redundant user buffer count checks at xfs_bulkstat c7cb51d xfs: fix error handling at xfs_inumbers 549fa00 xfs: consolidate xfs_inumbers d716f8e xfs: remove xfs_bulkstat_single 8fe6577 xfs: remove redundant stat assignment in xfs_bulkstat_one_int 80d6d69 xfs: add log attributes for log lsn and grant head data baff4e4 xfs: add xlog sysfs kobject and attribute handlers a31b1d3 xfs: add xfs_mount sysfs kobject 3d87122 xfs: add a sysfs kset a70a4fa xfs: fix a couple error sequence jumps in xfs_mountfs() 7f8a058 Merge branch 'xfs-libxfs-restructure' into for-next 03e0134 xfs: null unused quota inodes when quota is on cf11da9 xfs: refine the allocation stack switch aa182e6 Revert "xfs: block allocation work needs to be kswapd aware" 2451337 xfs: global error sign conversion 30f712c libxfs: move source files 84be0ff libxfs: move header files 69116a1 xfs: create libxfs infrastructure b474c7a xfs: Nuke XFS_ERROR macro d99831f xfs: return is not a function from a497c3ba1d97fc69c1e78e7b96435ba8c2cb42ee (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- ----------------------------------------------------------------------- Summary of changes: fs/xfs/Kconfig | 1 + fs/xfs/Makefile | 71 ++-- fs/xfs/{ => libxfs}/xfs_ag.h | 0 fs/xfs/{ => libxfs}/xfs_alloc.c | 20 +- fs/xfs/{ => libxfs}/xfs_alloc.h | 0 fs/xfs/{ => libxfs}/xfs_alloc_btree.c | 6 +- fs/xfs/{ => libxfs}/xfs_alloc_btree.h | 0 fs/xfs/{ => libxfs}/xfs_attr.c | 92 ++--- fs/xfs/{ => libxfs}/xfs_attr_leaf.c | 78 ++--- fs/xfs/{ => libxfs}/xfs_attr_leaf.h | 0 fs/xfs/{ => libxfs}/xfs_attr_remote.c | 22 +- fs/xfs/{ => libxfs}/xfs_attr_remote.h | 0 fs/xfs/{ => libxfs}/xfs_attr_sf.h | 0 fs/xfs/{ => libxfs}/xfs_bit.h | 0 fs/xfs/{ => libxfs}/xfs_bmap.c | 67 ++-- fs/xfs/{ => libxfs}/xfs_bmap.h | 4 +- fs/xfs/{ => libxfs}/xfs_bmap_btree.c | 99 +----- fs/xfs/{ => libxfs}/xfs_bmap_btree.h | 0 fs/xfs/{ => libxfs}/xfs_btree.c | 128 +++++-- fs/xfs/{ => libxfs}/xfs_btree.h | 2 +- fs/xfs/{ => libxfs}/xfs_cksum.h | 0 fs/xfs/{ => libxfs}/xfs_da_btree.c | 112 +++--- fs/xfs/{ => libxfs}/xfs_da_btree.h | 0 fs/xfs/{ => libxfs}/xfs_da_format.c | 0 fs/xfs/{ => libxfs}/xfs_da_format.h | 0 fs/xfs/{ => libxfs}/xfs_dinode.h | 0 fs/xfs/{ => libxfs}/xfs_dir2.c | 24 +- fs/xfs/{ => libxfs}/xfs_dir2.h | 0 fs/xfs/{ => libxfs}/xfs_dir2_block.c | 18 +- fs/xfs/{ => libxfs}/xfs_dir2_data.c | 10 +- fs/xfs/{ => libxfs}/xfs_dir2_leaf.c | 24 +- fs/xfs/{ => libxfs}/xfs_dir2_node.c | 40 +-- fs/xfs/{ => libxfs}/xfs_dir2_priv.h | 0 fs/xfs/{ => libxfs}/xfs_dir2_sf.c | 75 ++-- fs/xfs/{ => libxfs}/xfs_dquot_buf.c | 6 +- fs/xfs/{ => libxfs}/xfs_format.h | 14 +- fs/xfs/{ => libxfs}/xfs_ialloc.c | 34 +- fs/xfs/{ => libxfs}/xfs_ialloc.h | 0 fs/xfs/{ => libxfs}/xfs_ialloc_btree.c | 6 +- fs/xfs/{ => libxfs}/xfs_ialloc_btree.h | 0 fs/xfs/{ => libxfs}/xfs_inode_buf.c | 10 +- fs/xfs/{ => libxfs}/xfs_inode_buf.h | 0 fs/xfs/{ => libxfs}/xfs_inode_fork.c | 36 +- fs/xfs/{ => libxfs}/xfs_inode_fork.h | 0 fs/xfs/{ => libxfs}/xfs_inum.h | 4 - fs/xfs/{ => libxfs}/xfs_log_format.h | 4 +- fs/xfs/{ => libxfs}/xfs_log_recover.h | 0 fs/xfs/{ => libxfs}/xfs_log_rlimit.c | 0 fs/xfs/{ => libxfs}/xfs_quota_defs.h | 2 - fs/xfs/{ => libxfs}/xfs_rtbitmap.c | 0 fs/xfs/{ => libxfs}/xfs_sb.c | 81 +++-- fs/xfs/{ => libxfs}/xfs_sb.h | 8 +- fs/xfs/{ => libxfs}/xfs_shared.h | 0 fs/xfs/{ => libxfs}/xfs_symlink_remote.c | 6 +- fs/xfs/{ => libxfs}/xfs_trans_resv.c | 0 fs/xfs/{ => libxfs}/xfs_trans_resv.h | 0 fs/xfs/{ => libxfs}/xfs_trans_space.h | 0 fs/xfs/xfs_acl.c | 8 +- fs/xfs/xfs_aops.c | 18 +- fs/xfs/xfs_attr_inactive.c | 22 +- fs/xfs/xfs_attr_list.c | 38 +- fs/xfs/xfs_bmap_util.c | 227 +++++------- fs/xfs/xfs_bmap_util.h | 4 - fs/xfs/xfs_buf.c | 40 ++- fs/xfs/xfs_buf.h | 2 +- fs/xfs/xfs_buf_item.c | 4 +- fs/xfs/xfs_dir2_readdir.c | 4 +- fs/xfs/xfs_discard.c | 18 +- fs/xfs/xfs_dquot.c | 41 +-- fs/xfs/xfs_dquot.h | 15 + fs/xfs/xfs_error.c | 25 +- fs/xfs/xfs_error.h | 13 +- fs/xfs/xfs_export.c | 10 +- fs/xfs/xfs_extfree_item.c | 2 +- fs/xfs/xfs_file.c | 75 ++-- fs/xfs/xfs_filestream.c | 4 +- fs/xfs/xfs_fs.h | 7 +- fs/xfs/xfs_fsops.c | 42 +-- fs/xfs/xfs_icache.c | 148 ++++++-- fs/xfs/xfs_icache.h | 13 +- fs/xfs/xfs_inode.c | 68 ++-- fs/xfs/xfs_inode.h | 10 + fs/xfs/xfs_inode_item.c | 2 +- fs/xfs/xfs_ioctl.c | 266 +++++++------- fs/xfs/xfs_ioctl32.c | 111 +++--- fs/xfs/xfs_iomap.c | 57 +-- fs/xfs/xfs_iops.c | 72 ++-- fs/xfs/xfs_itable.c | 579 ++++++++++++++----------------- fs/xfs/xfs_itable.h | 23 +- fs/xfs/xfs_linux.h | 27 +- fs/xfs/xfs_log.c | 69 ++-- fs/xfs/xfs_log_cil.c | 8 +- fs/xfs/xfs_log_priv.h | 2 + fs/xfs/xfs_log_recover.c | 284 ++++++++------- fs/xfs/xfs_mount.c | 97 +++--- fs/xfs/xfs_mount.h | 1 + fs/xfs/xfs_mru_cache.c | 14 +- fs/xfs/xfs_qm.c | 229 ++++++------ fs/xfs/xfs_qm.h | 1 - fs/xfs/xfs_qm_bhv.c | 2 +- fs/xfs/xfs_qm_syscalls.c | 46 +-- fs/xfs/xfs_quotaops.c | 20 +- fs/xfs/xfs_rtalloc.c | 24 +- fs/xfs/xfs_rtalloc.h | 2 +- fs/xfs/xfs_super.c | 132 +++---- fs/xfs/xfs_super.h | 15 +- fs/xfs/xfs_symlink.c | 30 +- fs/xfs/xfs_sysfs.c | 165 +++++++++ fs/xfs/xfs_sysfs.h | 59 ++++ fs/xfs/xfs_trans.c | 10 +- fs/xfs/xfs_trans_ail.c | 4 +- fs/xfs/xfs_trans_buf.c | 37 +- fs/xfs/xfs_trans_dquot.c | 4 +- fs/xfs/xfs_types.h | 29 +- fs/xfs/xfs_vnode.h | 46 --- fs/xfs/xfs_xattr.c | 6 +- 116 files changed, 2319 insertions(+), 2116 deletions(-) rename fs/xfs/{ => libxfs}/xfs_ag.h (100%) rename fs/xfs/{ => libxfs}/xfs_alloc.c (99%) rename fs/xfs/{ => libxfs}/xfs_alloc.h (100%) rename fs/xfs/{ => libxfs}/xfs_alloc_btree.c (99%) rename fs/xfs/{ => libxfs}/xfs_alloc_btree.h (100%) rename fs/xfs/{ => libxfs}/xfs_attr.c (97%) rename fs/xfs/{ => libxfs}/xfs_attr_leaf.c (98%) rename fs/xfs/{ => libxfs}/xfs_attr_leaf.h (100%) rename fs/xfs/{ => libxfs}/xfs_attr_remote.c (98%) rename fs/xfs/{ => libxfs}/xfs_attr_remote.h (100%) rename fs/xfs/{ => libxfs}/xfs_attr_sf.h (100%) rename fs/xfs/{ => libxfs}/xfs_bit.h (100%) rename fs/xfs/{ => libxfs}/xfs_bmap.c (99%) rename fs/xfs/{ => libxfs}/xfs_bmap.h (98%) rename fs/xfs/{ => libxfs}/xfs_bmap_btree.c (88%) rename fs/xfs/{ => libxfs}/xfs_bmap_btree.h (100%) rename fs/xfs/{ => libxfs}/xfs_btree.c (97%) rename fs/xfs/{ => libxfs}/xfs_btree.h (99%) rename fs/xfs/{ => libxfs}/xfs_cksum.h (100%) rename fs/xfs/{ => libxfs}/xfs_da_btree.c (97%) rename fs/xfs/{ => libxfs}/xfs_da_btree.h (100%) rename fs/xfs/{ => libxfs}/xfs_da_format.c (100%) rename fs/xfs/{ => libxfs}/xfs_da_format.h (100%) rename fs/xfs/{ => libxfs}/xfs_dinode.h (100%) rename fs/xfs/{ => libxfs}/xfs_dir2.c (98%) rename fs/xfs/{ => libxfs}/xfs_dir2.h (100%) rename fs/xfs/{ => libxfs}/xfs_dir2_block.c (99%) rename fs/xfs/{ => libxfs}/xfs_dir2_data.c (99%) rename fs/xfs/{ => libxfs}/xfs_dir2_leaf.c (99%) rename fs/xfs/{ => libxfs}/xfs_dir2_node.c (98%) rename fs/xfs/{ => libxfs}/xfs_dir2_priv.h (100%) rename fs/xfs/{ => libxfs}/xfs_dir2_sf.c (97%) rename fs/xfs/{ => libxfs}/xfs_dquot_buf.c (98%) rename fs/xfs/{ => libxfs}/xfs_format.h (97%) rename fs/xfs/{ => libxfs}/xfs_ialloc.c (99%) rename fs/xfs/{ => libxfs}/xfs_ialloc.h (100%) rename fs/xfs/{ => libxfs}/xfs_ialloc_btree.c (98%) rename fs/xfs/{ => libxfs}/xfs_ialloc_btree.h (100%) rename fs/xfs/{ => libxfs}/xfs_inode_buf.c (98%) rename fs/xfs/{ => libxfs}/xfs_inode_buf.h (100%) rename fs/xfs/{ => libxfs}/xfs_inode_fork.c (98%) rename fs/xfs/{ => libxfs}/xfs_inode_fork.h (100%) rename fs/xfs/{ => libxfs}/xfs_inum.h (96%) rename fs/xfs/{ => libxfs}/xfs_log_format.h (99%) rename fs/xfs/{ => libxfs}/xfs_log_recover.h (100%) rename fs/xfs/{ => libxfs}/xfs_log_rlimit.c (100%) rename fs/xfs/{ => libxfs}/xfs_quota_defs.h (98%) rename fs/xfs/{ => libxfs}/xfs_rtbitmap.c (100%) rename fs/xfs/{ => libxfs}/xfs_sb.c (93%) rename fs/xfs/{ => libxfs}/xfs_sb.h (98%) rename fs/xfs/{ => libxfs}/xfs_shared.h (100%) rename fs/xfs/{ => libxfs}/xfs_symlink_remote.c (97%) rename fs/xfs/{ => libxfs}/xfs_trans_resv.c (100%) rename fs/xfs/{ => libxfs}/xfs_trans_resv.h (100%) rename fs/xfs/{ => libxfs}/xfs_trans_space.h (100%) create mode 100644 fs/xfs/xfs_sysfs.c create mode 100644 fs/xfs/xfs_sysfs.h delete mode 100644 fs/xfs/xfs_vnode.h hooks/post-receive -- XFS development tree From dgc@oss.sgi.com Thu Aug 28 06:05:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=NO_RELAYS autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: by oss.sgi.com (Postfix, from userid 10266) id D57207F47; Thu, 28 Aug 2014 06:05:10 -0500 (CDT) From: xfs@oss.sgi.com To: xfs@oss.sgi.com Subject: [XFS updates] XFS development tree branch, for-next, updated. xfs-for-linus-3.17-rc1-13176-g52addcf X-Git-Refname: refs/heads/for-next X-Git-Reftype: branch X-Git-Oldrev: 645f9857213476407d8ed1b59619fdff7128d3e6 X-Git-Newrev: 52addcf9d6669fa439387610bc65c92fa0980cef Message-Id: <20140828110510.D57207F47@oss.sgi.com> Date: Thu, 28 Aug 2014 06:05:10 -0500 (CDT) This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "XFS development tree". The branch, for-next has been updated from 645f9857213476407d8ed1b59619fdff7128d3e6 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- ----------------------------------------------------------------------- Summary of changes: hooks/post-receive -- XFS development tree From dave@fromorbit.com Thu Aug 28 06:49:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8829F7F3F for ; Thu, 28 Aug 2014 06:49:20 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 186F0AC002 for ; Thu, 28 Aug 2014 04:49:20 -0700 (PDT) X-ASG-Debug-ID: 1409226556-04cbb054868aef60002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id wFprHl71RD6qfhbK for ; Thu, 28 Aug 2014 04:49:18 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AocZAB4W/1N5LDJ8PGdsb2JhbABbgw2IXadNBqYRFwUBAQEBODaEYDuBAgMHiG6bJqQAhXyJbYQ2BbVnK4J+AQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FK-Ed for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004KY-DV for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH v2 0/7] xfs: invalidation and related fixes for v3.17-rc3 Date: Thu, 28 Aug 2014 21:49:04 +1000 X-ASG-Orig-Subj: [PATCH v2 0/7] xfs: invalidation and related fixes for v3.17-rc3 Message-Id: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226557 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8911 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi folks, These are the patches that I'm planning to send to Linus for 3.17-rc3. I've been testing them all week, an dI'll push them out into a topic branch tomorrow morning for a linux-next build before pushing them to Linus. Only the first patch doesn't have a review; there was a bit of discussion about the problem that the patch fixes but no changes have really been suggested from that discussion. I've fixed the one problem that was pointed out, so please have a look over it... I also added Brian's eofblocks trimming for collapse range fix to the set as it fixed another problem I was tripping over in testing and it's simple enough to consider a valid -rc fix. Cheers, Dave. From dave@fromorbit.com Thu Aug 28 06:49:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 101B07F47 for ; Thu, 28 Aug 2014 06:49:21 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id E9A57304053 for ; Thu, 28 Aug 2014 04:49:20 -0700 (PDT) X-ASG-Debug-ID: 1409226556-04cbb054868aef60003-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id bQpyg5kRWlP8nNKa for ; Thu, 28 Aug 2014 04:49:19 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqwZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GpHSBHRcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEG/JoV8iUUohDYFtWcrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FO-Gl for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004Kq-Ft for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 4/7] xfs: use ranged writeback and invalidation for direct IO Date: Thu, 28 Aug 2014 21:49:08 +1000 X-ASG-Orig-Subj: [PATCH 4/7] xfs: use ranged writeback and invalidation for direct IO Message-Id: <1409226551-16570-5-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226559 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8911 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Now we are not doing silly things with dirtying buffers beyond EOF and using invalidation correctly, we can finally reduce the ranges of writeback and invalidation used by direct IO to match that of the IO being issued. Bring the writeback and invalidation ranges back to match the generic direct IO code - this will greatly reduce the perturbation of cached data when direct IO and buffered IO are mixed, but still provide the same buffered vs direct IO coherency behaviour we currently have. Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 19917fa..de5368c 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -291,7 +291,7 @@ xfs_file_read_iter( if (inode->i_mapping->nrpages) { ret = filemap_write_and_wait_range( VFS_I(ip)->i_mapping, - pos, -1); + pos, pos + size - 1); if (ret) { xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); return ret; @@ -303,7 +303,8 @@ xfs_file_read_iter( * happen on XFS. Warn if it does fail. */ ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, - pos >> PAGE_CACHE_SHIFT, -1); + pos >> PAGE_CACHE_SHIFT, + (pos + size - 1) >> PAGE_CACHE_SHIFT); WARN_ON_ONCE(ret); ret = 0; } @@ -641,7 +642,7 @@ xfs_file_dio_aio_write( if (mapping->nrpages) { ret = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, - pos, -1); + pos, pos + count - 1); if (ret) goto out; /* @@ -650,7 +651,8 @@ xfs_file_dio_aio_write( * happen on XFS. Warn if it does fail. */ ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, - pos >> PAGE_CACHE_SHIFT, -1); + pos >> PAGE_CACHE_SHIFT, + (pos + count - 1) >> PAGE_CACHE_SHIFT); WARN_ON_ONCE(ret); ret = 0; } -- 2.0.0 From dave@fromorbit.com Thu Aug 28 06:49:21 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B51AF7F3F for ; Thu, 28 Aug 2014 06:49:21 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 52FF6AC004 for ; Thu, 28 Aug 2014 04:49:21 -0700 (PDT) X-ASG-Debug-ID: 1409226558-04bdf010a05b68a0002-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id IEThrQS62nqW2lFM for ; Thu, 28 Aug 2014 04:49:19 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqcZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GphEXBQEBAQE4NoQEAQUnLzMIGDE5AwcUGYhBvyaFfI4jBbVnKy+BCCSBIwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FP-HO for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004Kv-GR for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 5/7] xfs: don't log inode unless extent shift makes extent modifications Date: Thu, 28 Aug 2014 21:49:09 +1000 X-ASG-Orig-Subj: [PATCH 5/7] xfs: don't log inode unless extent shift makes extent modifications Message-Id: <1409226551-16570-6-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226559 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8910 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Brian Foster The file collapse mechanism uses xfs_bmap_shift_extents() to collapse all subsequent extents down into the specified, previously punched out, region. This function performs some validation, such as whether a sufficient hole exists in the target region of the collapse, then shifts the remaining exents downward. The exit path of the function currently logs the inode unconditionally. While we must log the inode (and abort) if an error occurs and the transaction is dirty, the initial validation paths can generate errors before the transaction has been dirtied. This creates an unnecessary filesystem shutdown scenario, as the caller will cancel a transaction that has been marked dirty. Modify xfs_bmap_shift_extents() to OR the logflags bits as modifications are made to the inode bmap. Only log the inode in the exit path if logflags has been set. This ensures we only have to cancel a dirty transaction if modifications have been made and prevents an unnecessary filesystem shutdown otherwise. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner --- fs/xfs/libxfs/xfs_bmap.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 3a6a700..e5c2518 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5422,7 +5422,7 @@ xfs_bmap_shift_extents( struct xfs_bmap_free *flist, int num_exts) { - struct xfs_btree_cur *cur; + struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; struct xfs_bmbt_irec got; struct xfs_bmbt_irec left; @@ -5433,7 +5433,7 @@ xfs_bmap_shift_extents( int error = 0; int i; int whichfork = XFS_DATA_FORK; - int logflags; + int logflags = 0; xfs_filblks_t blockcount = 0; int total_extents; @@ -5476,16 +5476,11 @@ xfs_bmap_shift_extents( } } - /* We are going to change core inode */ - logflags = XFS_ILOG_CORE; if (ifp->if_flags & XFS_IFBROOT) { cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); cur->bc_private.b.firstblock = *firstblock; cur->bc_private.b.flist = flist; cur->bc_private.b.flags = 0; - } else { - cur = NULL; - logflags |= XFS_ILOG_DEXT; } /* @@ -5543,11 +5538,14 @@ xfs_bmap_shift_extents( blockcount = left.br_blockcount + got.br_blockcount; xfs_iext_remove(ip, *current_ext, 1, 0); + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_btree_delete(cur, &i); if (error) goto del_cursor; XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); + } else { + logflags |= XFS_ILOG_DEXT; } XFS_IFORK_NEXT_SET(ip, whichfork, XFS_IFORK_NEXTENTS(ip, whichfork) - 1); @@ -5573,6 +5571,7 @@ xfs_bmap_shift_extents( got.br_startoff = startoff; } + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, @@ -5580,6 +5579,8 @@ xfs_bmap_shift_extents( got.br_state); if (error) goto del_cursor; + } else { + logflags |= XFS_ILOG_DEXT; } (*current_ext)++; @@ -5595,6 +5596,7 @@ del_cursor: xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR); - xfs_trans_log_inode(tp, ip, logflags); + if (logflags) + xfs_trans_log_inode(tp, ip, logflags); return error; } -- 2.0.0 From dave@fromorbit.com Thu Aug 28 06:49:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 0C0F57F47 for ; Thu, 28 Aug 2014 06:49:22 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id EED4A304048 for ; Thu, 28 Aug 2014 04:49:21 -0700 (PDT) X-ASG-Debug-ID: 1409226559-04cb6c54fd623a20001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id GiYo4kvab5M0yjw9 for ; Thu, 28 Aug 2014 04:49:20 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqwZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GpHSBHRcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEG/JoV8iGxZKIQ2Bah2jHErL4EGgUkBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FM-Fh for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004Kg-Er for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 2/7] xfs: don't zero partial page cache pages during O_DIRECT writes Date: Thu, 28 Aug 2014 21:49:06 +1000 X-ASG-Orig-Subj: [PATCH 2/7] xfs: don't zero partial page cache pages during O_DIRECT writes Message-Id: <1409226551-16570-3-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226559 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8910 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Chris Mason xfs is using truncate_pagecache_range to invalidate the page cache during DIO reads. This is different from the other filesystems who only invalidate pages during DIO writes. truncate_pagecache_range is meant to be used when we are freeing the underlying data structs from disk, so it will zero any partial ranges in the page. This means a DIO read can zero out part of the page cache page, and it is possible the page will stay in cache. buffered reads will find an up to date page with zeros instead of the data actually on disk. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. [dchinner: catch error and warn if it fails. Comment.] cc: stable@vger.kernel.org Signed-off-by: Chris Mason Reviewed-by: Dave Chinner Reviewed-by: Brian Foster Signed-off-by: Dave Chinner --- fs/xfs/xfs_file.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 076b170..827cfb2 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -296,7 +296,16 @@ xfs_file_read_iter( xfs_rw_iunlock(ip, XFS_IOLOCK_EXCL); return ret; } - truncate_pagecache_range(VFS_I(ip), pos, -1); + + /* + * Invalidate whole pages. This can return an error if + * we fail to invalidate a page, but this should never + * happen on XFS. Warn if it does fail. + */ + ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); + WARN_ON_ONCE(ret); + ret = 0; } xfs_rw_ilock_demote(ip, XFS_IOLOCK_EXCL); } -- 2.0.0 From dave@fromorbit.com Thu Aug 28 06:49:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 666C37F51 for ; Thu, 28 Aug 2014 06:49:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 44CA58F8050 for ; Thu, 28 Aug 2014 04:49:22 -0700 (PDT) X-ASG-Debug-ID: 1409226556-04cbb054868aef60004-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id MKwUGLsGcnZjNLRt for ; Thu, 28 Aug 2014 04:49:20 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqwZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GpHSBHRcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEG/JoV8iUUohDYFtWcrL4EGJIElAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FR-Iv for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004L5-He for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 7/7] xfs: trim eofblocks before collapse range Date: Thu, 28 Aug 2014 21:49:11 +1000 X-ASG-Orig-Subj: [PATCH 7/7] xfs: trim eofblocks before collapse range Message-Id: <1409226551-16570-8-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226560 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8911 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Brian Foster xfs_collapse_file_space() currently writes back the entire file undergoing collapse range to settle things down for the extent shift algorithm. While this prevents changes to the extent list during the collapse operation, the writeback itself is not enough to prevent unnecessary collapse failures. The current shift algorithm uses the extent index to iterate the in-core extent list. If a post-eof delalloc extent persists after the writeback (e.g., a prior zero range op where the end of the range aligns with eof can separate the post-eof blocks such that they are not written back and converted), xfs_bmap_shift_extents() becomes confused over the encoded br_startblock value and fails the collapse. As with the full writeback, this is a temporary fix until the algorithm is improved to cope with a volatile extent list and avoid attempts to shift post-eof extents. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner --- fs/xfs/xfs_bmap_util.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 283e20c..c692260 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1445,8 +1445,10 @@ xfs_collapse_file_space( shift_fsb = XFS_B_TO_FSB(mp, len); /* - * writeback the entire file to prevent concurrent writeback of ranges - * outside the collapsing region from changing the extent list. + * Writeback the entire file and force remove any post-eof blocks. The + * writeback prevents changes to the extent list via concurrent + * writeback and the eofblocks trim prevents the extent shift algorithm + * from running into a post-eof delalloc extent. * * XXX: This is a temporary fix until the extent shift loop below is * converted to use offsets and lookups within the ILOCK rather than @@ -1456,6 +1458,11 @@ xfs_collapse_file_space( error = filemap_write_and_wait(VFS_I(ip)->i_mapping); if (error) return error; + if (xfs_can_free_eofblocks(ip, true)) { + error = xfs_free_eofblocks(mp, ip, false); + if (error) + return error; + } error = xfs_free_file_space(ip, offset, len); if (error) -- 2.0.0 From dave@fromorbit.com Thu Aug 28 06:49:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 7D6137F55 for ; Thu, 28 Aug 2014 06:49:22 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id F0B3EAC002 for ; Thu, 28 Aug 2014 04:49:18 -0700 (PDT) X-ASG-Debug-ID: 1409226556-04cbb054868aef60001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id GDxo5L8hxR1k3gia for ; Thu, 28 Aug 2014 04:49:16 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqwZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GpHSBHRcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEG/JoV8iGxZKIQ2Bah2jHErL4EGgUkBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FN-GD for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004Kl-FK for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 3/7] xfs: don't zero partial page cache pages during O_DIRECT writes Date: Thu, 28 Aug 2014 21:49:07 +1000 X-ASG-Orig-Subj: [PATCH 3/7] xfs: don't zero partial page cache pages during O_DIRECT writes Message-Id: <1409226551-16570-4-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226556 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8911 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner Similar to direct IO reads, direct IO writes are using truncate_pagecache_range to invalidate the page cache. This is incorrect due to the sub-block zeroing in the page cache that truncate_pagecache_range() triggers. This patch fixes things by using invalidate_inode_pages2_range instead. It preserves the page cache invalidation, but won't zero any pages. cc: stable@vger.kernel.org Signed-off-by: Dave Chinner Reviewed-by: Brian Foster --- fs/xfs/xfs_file.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 827cfb2..19917fa 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -644,7 +644,15 @@ xfs_file_dio_aio_write( pos, -1); if (ret) goto out; - truncate_pagecache_range(VFS_I(ip), pos, -1); + /* + * Invalidate whole pages. This can return an error if + * we fail to invalidate a page, but this should never + * happen on XFS. Warn if it does fail. + */ + ret = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping, + pos >> PAGE_CACHE_SHIFT, -1); + WARN_ON_ONCE(ret); + ret = 0; } /* -- 2.0.0 From dave@fromorbit.com Thu Aug 28 06:49:22 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8D0D47F57 for ; Thu, 28 Aug 2014 06:49:22 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2226CAC008 for ; Thu, 28 Aug 2014 04:49:22 -0700 (PDT) X-ASG-Debug-ID: 1409226558-04bdf010a05b68a0003-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id QHdMUWN0i82uWwcA for ; Thu, 28 Aug 2014 04:49:20 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqwZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GpHSBHRcFAQEBATg2hAQBBScvMwgYMTkDBxQZiEGsQpJkhXyJRSiENgWodoxxKy+BBiSBJQEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FQ-Hz for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004L0-HA for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 6/7] xfs: xfs_file_collapse_range is delalloc challenged Date: Thu, 28 Aug 2014 21:49:10 +1000 X-ASG-Orig-Subj: [PATCH 6/7] xfs: xfs_file_collapse_range is delalloc challenged Message-Id: <1409226551-16570-7-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226560 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8910 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner If we have delalloc extents on a file before we run a collapse range opertaion, we sync the range that we are going to collapse to convert delalloc extents in that region to real extents to simplify the shift operation. However, the shift operation then assumes that the extent list is not going to change as it iterates over the extent list moving things about. Unfortunately, this isn't true because we can't hold the ILOCK over all the operations. We can prevent new IO from modifying the extent list by holding the IOLOCK, but that doesn't prevent writeback from running.... And when writeback runs, it can convert delalloc extents is the range of the file prior to the region being collapsed, and this changes the indexes of all the extents in the file. That causes the collapse range operation to Go Bad. The right fix is to rewrite the extent shift operation not to be dependent on the extent list not changing across the entire operation, but this is a fairly significant piece of work to do. Hence, as a short-term workaround for the problem, sync the entire file before starting a collapse operation to remove all delalloc ranges from the file and so avoid the problem of concurrent writeback changing the extent list. Diagnosed-and-Reported-by: Brian Foster Signed-off-by: Dave Chinner Reviewed-by: Brian Foster --- fs/xfs/xfs_bmap_util.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index aa70620..283e20c 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1444,6 +1444,19 @@ xfs_collapse_file_space( start_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); + /* + * writeback the entire file to prevent concurrent writeback of ranges + * outside the collapsing region from changing the extent list. + * + * XXX: This is a temporary fix until the extent shift loop below is + * converted to use offsets and lookups within the ILOCK rather than + * carrying around the index into the extent list for the next + * iteration. + */ + error = filemap_write_and_wait(VFS_I(ip)->i_mapping); + if (error) + return error; + error = xfs_free_file_space(ip, offset, len); if (error) return error; -- 2.0.0 From dave@fromorbit.com Thu Aug 28 06:49:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id E94477F60 for ; Thu, 28 Aug 2014 06:49:23 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id BAD978F8050 for ; Thu, 28 Aug 2014 04:49:20 -0700 (PDT) X-ASG-Debug-ID: 1409226558-04bdf010a05b68a0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 0t49dOIBE9bgHghC for ; Thu, 28 Aug 2014 04:49:18 -0700 (PDT) X-Barracuda-Envelope-From: dave@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AqgZAB4W/1N5LDJ8PGdsb2JhbABbgw2BKoczp00GphEXBQEBAQE4NoQEAQUnLzMIGDE5AwcUGRuIJr8mhXyOIwWocoppHoFuKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 28 Aug 2014 21:19:15 +0930 Received: from disappointment.disaster.area ([192.168.1.110] helo=disappointment) by dastard with esmtp (Exim 4.80) (envelope-from ) id 1XMyCX-0000FL-FD for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 Received: from dave by disappointment with local (Exim 4.82_1-5b7a7c0-XX) (envelope-from ) id 1XMyCX-0004Kb-EG for xfs@oss.sgi.com; Thu, 28 Aug 2014 21:49:13 +1000 From: Dave Chinner To: xfs@oss.sgi.com Subject: [PATCH 1/7] xfs: don't dirty buffers beyond EOF Date: Thu, 28 Aug 2014 21:49:05 +1000 X-ASG-Orig-Subj: [PATCH 1/7] xfs: don't dirty buffers beyond EOF Message-Id: <1409226551-16570-2-git-send-email-david@fromorbit.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1409226551-16570-1-git-send-email-david@fromorbit.com> References: <1409226551-16570-1-git-send-email-david@fromorbit.com> X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409226558 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8910 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner generic/263 is failing fsx at this point with a page spanning EOF that cannot be invalidated. The operations are: 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO write attempts to invalidate the cached page over this range, it fails with -EBUSY and so any attempt to do page invalidation fails. The real question is this: Why can't that page be invalidated after it has been written to disk and cleaned? Well, there's data on the first two buffers in the page (1k block size, 4k page), but the third buffer on the page (i.e. beyond EOF) is failing drop_buffers because it's bh->b_state == 0x3, which is BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say what? OK, set_buffer_dirty() is called on all buffers from __set_page_buffers_dirty(), regardless of whether the buffer is beyond EOF or not, which means that when we get to ->writepage, we have buffers marked dirty beyond EOF that we need to clean. So, we need to implement our own .set_page_dirty method that doesn't dirty buffers beyond EOF. This is messy because the buffer code is not meant to be shared and it has interesting locking issues on the buffer dirty bits. So just copy and paste it and then modify it to suit what we need. Note: the solutions the other filesystems and generic block code use of marking the buffers clean in ->writepage does not work for XFS. It still leaves dirty buffers beyond EOF and invalidations still fail. Hence rather than play whack-a-mole, this patch simply prevents those buffers from being dirtied in the first place. cc: Signed-off-by: Dave Chinner --- fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 11e9b4c..4c79f90 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1753,11 +1753,69 @@ xfs_vm_readpages( return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); } +/* + * This is basically a copy of __set_page_dirty_buffers() with one + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them + * dirty, we'll never be able to clean them because we don't write buffers + * beyond EOF, and that means we can't invalidate pages that span EOF + * that have been marked dirty. Further, the dirty state can leak into + * the file interior if the file is extended, resulting in all sorts of + * bad things happening as the state does not match the unerlying data. + */ +STATIC int +xfs_vm_set_page_dirty( + struct page *page) +{ + struct address_space *mapping = page->mapping; + struct inode *inode = mapping->host; + loff_t end_offset; + loff_t offset; + int newly_dirty; + + if (unlikely(!mapping)) + return !TestSetPageDirty(page); + + end_offset = i_size_read(inode); + offset = end_offset & PAGE_CACHE_MASK; + + spin_lock(&mapping->private_lock); + if (page_has_buffers(page)) { + struct buffer_head *head = page_buffers(page); + struct buffer_head *bh = head; + + do { + if (offset < end_offset) + set_buffer_dirty(bh); + bh = bh->b_this_page; + offset += 1 << inode->i_blkbits; + } while (bh != head); + } + newly_dirty = !TestSetPageDirty(page); + spin_unlock(&mapping->private_lock); + + if (newly_dirty) { + /* sigh - __set_page_dirty() is static, so copy it here, too */ + unsigned long flags; + + spin_lock_irqsave(&mapping->tree_lock, flags); + if (page->mapping) { /* Race with truncate? */ + WARN_ON_ONCE(!PageUptodate(page)); + account_page_dirtied(page, mapping); + radix_tree_tag_set(&mapping->page_tree, + page_index(page), PAGECACHE_TAG_DIRTY); + } + spin_unlock_irqrestore(&mapping->tree_lock, flags); + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); + } + return newly_dirty; +} + const struct address_space_operations xfs_address_space_operations = { .readpage = xfs_vm_readpage, .readpages = xfs_vm_readpages, .writepage = xfs_vm_writepage, .writepages = xfs_vm_writepages, + .set_page_dirty = xfs_vm_set_page_dirty, .releasepage = xfs_vm_releasepage, .invalidatepage = xfs_vm_invalidatepage, .write_begin = xfs_vm_write_begin, -- 2.0.0 From bfoster@redhat.com Thu Aug 28 08:35:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id D0CA97F3F for ; Thu, 28 Aug 2014 08:35:19 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A2D748F8040 for ; Thu, 28 Aug 2014 06:35:16 -0700 (PDT) X-ASG-Debug-ID: 1409232912-04bdf010975bbd70001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id mUHyG3KKym8rO7zk (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 06:35:12 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7SDYxex016383 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 28 Aug 2014 09:34:59 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7SDYwRm010163; Thu, 28 Aug 2014 09:34:59 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id E771912577F; Thu, 28 Aug 2014 09:34:57 -0400 (EDT) Date: Thu, 28 Aug 2014 09:34:57 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF Message-ID: <20140828133457.GA35386@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409232912 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, Aug 28, 2014 at 09:49:05PM +1000, Dave Chinner wrote: > From: Dave Chinner > > generic/263 is failing fsx at this point with a page spanning > EOF that cannot be invalidated. The operations are: > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > write attempts to invalidate the cached page over this range, it > fails with -EBUSY and so any attempt to do page invalidation fails. > > The real question is this: Why can't that page be invalidated after > it has been written to disk and cleaned? > > Well, there's data on the first two buffers in the page (1k block > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > is failing drop_buffers because it's bh->b_state == 0x3, which is > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > what? > > OK, set_buffer_dirty() is called on all buffers from > __set_page_buffers_dirty(), regardless of whether the buffer is > beyond EOF or not, which means that when we get to ->writepage, > we have buffers marked dirty beyond EOF that we need to clean. > So, we need to implement our own .set_page_dirty method that > doesn't dirty buffers beyond EOF. > > This is messy because the buffer code is not meant to be shared > and it has interesting locking issues on the buffer dirty bits. > So just copy and paste it and then modify it to suit what we need. > > Note: the solutions the other filesystems and generic block code use > of marking the buffers clean in ->writepage does not work for XFS. > It still leaves dirty buffers beyond EOF and invalidations still > fail. Hence rather than play whack-a-mole, this patch simply > prevents those buffers from being dirtied in the first place. > > cc: > Signed-off-by: Dave Chinner > --- > fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 58 insertions(+) > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index 11e9b4c..4c79f90 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -1753,11 +1753,69 @@ xfs_vm_readpages( > return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); > } > > +/* > + * This is basically a copy of __set_page_dirty_buffers() with one > + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them > + * dirty, we'll never be able to clean them because we don't write buffers > + * beyond EOF, and that means we can't invalidate pages that span EOF > + * that have been marked dirty. Further, the dirty state can leak into > + * the file interior if the file is extended, resulting in all sorts of > + * bad things happening as the state does not match the unerlying data. > + */ > +STATIC int > +xfs_vm_set_page_dirty( > + struct page *page) > +{ > + struct address_space *mapping = page->mapping; > + struct inode *inode = mapping->host; > + loff_t end_offset; > + loff_t offset; > + int newly_dirty; > + > + if (unlikely(!mapping)) > + return !TestSetPageDirty(page); > + > + end_offset = i_size_read(inode); > + offset = end_offset & PAGE_CACHE_MASK; Is this what you intended to do here? offset = page_offset(page); Brian > + > + spin_lock(&mapping->private_lock); > + if (page_has_buffers(page)) { > + struct buffer_head *head = page_buffers(page); > + struct buffer_head *bh = head; > + > + do { > + if (offset < end_offset) > + set_buffer_dirty(bh); > + bh = bh->b_this_page; > + offset += 1 << inode->i_blkbits; > + } while (bh != head); > + } > + newly_dirty = !TestSetPageDirty(page); > + spin_unlock(&mapping->private_lock); > + > + if (newly_dirty) { > + /* sigh - __set_page_dirty() is static, so copy it here, too */ > + unsigned long flags; > + > + spin_lock_irqsave(&mapping->tree_lock, flags); > + if (page->mapping) { /* Race with truncate? */ > + WARN_ON_ONCE(!PageUptodate(page)); > + account_page_dirtied(page, mapping); > + radix_tree_tag_set(&mapping->page_tree, > + page_index(page), PAGECACHE_TAG_DIRTY); > + } > + spin_unlock_irqrestore(&mapping->tree_lock, flags); > + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); > + } > + return newly_dirty; > +} > + > const struct address_space_operations xfs_address_space_operations = { > .readpage = xfs_vm_readpage, > .readpages = xfs_vm_readpages, > .writepage = xfs_vm_writepage, > .writepages = xfs_vm_writepages, > + .set_page_dirty = xfs_vm_set_page_dirty, > .releasepage = xfs_vm_releasepage, > .invalidatepage = xfs_vm_invalidatepage, > .write_begin = xfs_vm_write_begin, > -- > 2.0.0 > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From iustin@google.com Thu Aug 28 17:29:05 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 9B2BC7F3F for ; 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Thu, 28 Aug 2014 15:28:56 -0700 (PDT) Received: from google.com ([2620:0:1009:a:64ad:58d0:8abd:1cc]) by mx.google.com with ESMTPSA id w8sm21640620igl.13.2014.08.28.15.28.55 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 28 Aug 2014 15:28:55 -0700 (PDT) Date: Thu, 28 Aug 2014 15:28:54 -0700 From: Iustin Pop To: Dave Chinner Cc: Iustin Pop , xfs@oss.sgi.com, hch@infradead.org, fstests@vger.kernel.org Subject: Re: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour Message-ID: <20140828222854.GB29940@google.com> X-ASG-Orig-Subj: Re: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour References: <20140718191314.GB27801@teal.hq.k1024.org> <1409199840-16907-1-git-send-email-iusty@k1024.org> <20140828101628.GS20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20140828101628.GS20518@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mail-ie0-f179.google.com[209.85.223.179] X-Barracuda-Start-Time: 1409264937 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8931 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Don, Aug 28, 2014 at 08:16:28 +1000, Dave Chinner wrote: > [cc fstests@vger.kernel.org] > > On Wed, Aug 27, 2014 at 09:24:00PM -0700, Iustin Pop wrote: > > Add two tests that check for correct behaviour of XFS_IOC_FSSETXATTR: > > > > - 307: check that extent size can always be set on a directory > > - 308: check that setting a non-zero extent size directly via the ioctl > > sets the expected flags (EXTSIZE and EXTSZINHERIT) > > > > Signed-off-by: Iustin Pop > > Minor stuff first: > > - xfstests patches should be sent to fstests@vger.kernel.org now. OK, will do. There was nothing written in the git repository's README, hence I chose what I thought best. > - can you pick the first unused numbers in the sequence for new > tests (xfs/032, xfs/051) so I don't have to renumber them before > applying them? Will do - this is what the 'new' script did (or tried to do, as it doesn't seem to work reliably). > - a patch per new test - it makes it easier to review and apply as i > don't have to split patches into multiple commits... Will do so when resending. > > diff --git a/tests/xfs/307 b/tests/xfs/307 > > new file mode 100755 > > index 0000000..e8f3576 > > --- /dev/null > > +++ b/tests/xfs/307 > > @@ -0,0 +1,87 @@ > > +#! /bin/bash > > +# FS QA Test No. 307 > > +# > > +# Test that setting extent size on directories work even for large > > +# directories. > > What is a "large directory"? Wouldn't it be better to describe the > test as "Determine whether the extent size hint can be set on > directories with allocated extents correctly"? Indeed that's better, I'll update. > > +# > > +#----------------------------------------------------------------------- > > +# Copyright (c) 2014 Google Inc. All Rights Reserved. > > Is that correct? It doesn't match the email address you sent this > from and I've never seen you post from a @google.com address. I > always like to check that the copyright assignment is correct in > situations like this... It is correct indeed (and thanks for double-checking). I prefer to send my interactions/contributions done not as part of my job using my personal address (hence I always wrote to xfs@ from the same address), but even in that case, the copyright remains with my employer. Just as a confirmation, sending this email from my @google.com address. > > +# real QA test starts here > > + > > +# Modify as appropriate. > > +_supported_fs xfs > > +_supported_os Linux > > +_require_test > > Not needed, doesn't use the test device. Ack. > > +_require_scratch > > + > > +_scratch_mkfs_xfs >/dev/null 2>&1 > > +_scratch_mount > > + > > +small=$SCRATCH_MNT/small > > +big=$SCRATCH_MNT/big > > + > > +# sanity check on a small directory > > +mkdir $small > > +# expect that an empty directory has no extents > > +xfs_bmap $small | grep -q "no extents" > > Better to use xfs_io directly and filter out $SCRATCH_MNT into the > golden output file like so: > > $XFS_IO_PROG -c "bmap" $small | _filter_scratch > > which will give: > > SCRATCH_MNT/small: no extents Oh, nice, thanks! > > +# and that we can set an extent size on it > > +xfs_io -c 'extsize 8m' $small > > $XFS_IO_PROG Ack. > > +# and finally check that the extent size update has taken place > > +(cd $SCRATCH_MNT; xfs_io -c 'extsize' small) > > $XFS_IO_PROG -c 'extsize' $small | _filter_scratch Ack. > > +# now create a 'big' (with extents) directory > > +mkdir $big > > +idx=1 > > +while xfs_bmap $big | grep -q "no extents"; do > > + touch $big/$idx > > + idx=$((idx+1)) > > + if [ "$idx" -gt 1048576 ]; then > > + # still no extents? giving up > > + echo "Can't make a directory to have extents even after 1M files" 1>&2 > > + exit > > + fi > > +done > > urk. largest inode size is 2kb, which means at most it can fit less > than 100 dirents in the inode before spilling to extent form. So > just do a loop that creates 1000 files - there's no need to > overengineer the test code. Will do. It's fine to still check that the directory does have extents, I hope? > > +# expect that we can set the extent size on $big as well > > +xfs_io -c 'extsize 8m' $big > > $XFS_IO_PROG Ack. > > +# and that it took effect > > +(cd $SCRATCH_MNT; xfs_io -c 'extsize' big) > > $XFS_IO_PROG -c 'extsize' $big | _filter_scratch Ack. > > +# success, all done > > +status=0 > > +exit > > diff --git a/tests/xfs/307.out b/tests/xfs/307.out > > new file mode 100644 > > index 0000000..f825525 > > --- /dev/null > > +++ b/tests/xfs/307.out > > @@ -0,0 +1,3 @@ > > +QA output created by 307 > > +[8388608] small > > +[8388608] big > > diff --git a/tests/xfs/308 b/tests/xfs/308 > > new file mode 100755 > > index 0000000..7b43836 > > --- /dev/null > > +++ b/tests/xfs/308 > > @@ -0,0 +1,98 @@ > > +#! /bin/bash > > +# FS QA Test No. 308 > > +# > > +# Test that setting extent size on files and directories (directly via > > +# ioctl and not via xfs_io) sets the correct flags. > > xfs_io uses the ioctl directly - there's no need to write a special > c program to do this, especially as.... > > > +touch $file > > +mkdir $dir > > + > > +cat > $cprog << EOF > > +#include > > +#include > > + > > +int main(int argc, char **argv) { > > + struct fsxattr fa; > > + int fd = open(argv[1], O_RDONLY); > > + if (fd < 0) { > > + perror("open"); > > + return 1; > > + } > > + fa.fsx_xflags = 0; > > + fa.fsx_extsize = 1048576 * 8; > > + int r = xfsctl(argv[1], fd, XFS_IOC_FSSETXATTR, &fa); > > .... that code is quite broken. Yes, it would work to set the > appropriate extent size flags with the kernel > changes you made, but that's not how this ioctl works. > > i.e. it will cause any flag bits that are set on the inode to be > cleared Good point… > and it's likely to fail on old kernels beacuse they have > very different behaviour to what your patch does. OK, that I didn't know. (Would you mind quickly explaining?) > IOWs, setting fsx_extsize without setting either XFS_XFLAG_EXTSIZE > or XFS_XFLAG_EXTSZINHERIT is bad practice. The kernel is left to > guess what you actually wanted to be done - the flags are supposed > to tell the kernel that the fsx_extsize value is meaningful, not the > other way around. See below. > FWIW, the xfs_io code is *exactly* what applications should be > doing to set the extent size or any other inode flag. i.e: > > 1. stat the fd to determine the type. > 2. populate the fsxattr structure with the existing inode flags > 3. change the flags/fields of the fsxattr structure appropriately > 4. set the new values to the inode. > > i.e, from io/open.c: > > static int > set_extsize(const char *path, int fd, long extsz) > { > struct fsxattr fsx; > struct stat64 stat; > > if (fstat64(fd, &stat) < 0) { > perror("fstat64"); > return 0; > } > if ((xfsctl(path, fd, XFS_IOC_FSGETXATTR, &fsx)) < 0) { > printf("%s: XFS_IOC_FSGETXATTR %s: %s\n", > progname, path, strerror(errno)); > return 0; > } > > if (S_ISREG(stat.st_mode)) { > fsx.fsx_xflags |= XFS_XFLAG_EXTSIZE; > } else if (S_ISDIR(stat.st_mode)) { > fsx.fsx_xflags |= XFS_XFLAG_EXTSZINHERIT; > } else { > printf(_("invalid target file type - file %s\n"), path); > return 0; > } > fsx.fsx_extsize = extsz; > > if ((xfsctl(path, fd, XFS_IOC_FSSETXATTR, &fsx)) < 0) { > printf("%s: XFS_IOC_FSSETXATTR %s: %s\n", > progname, path, strerror(errno)); > return 0; > } > > return 0; > } > > We have xfs_io precisely so that we don't have to maintain random > test code like this throughout xfstests - do it once, do it right, > use it everywhere. I totally agree that xfs_io is what people should use, but I disagree on the use of xfs_io in this particular test, let me explain why. With 3.16-rc1 at least, it is possible to set fsx_extsize to a non-zero value, without setting the flags (if you call the ioctl directly). Such an inode will be (unless I'm mistaken) flagged with a warning by xfs_repair, which means that it's an invalid inode state. So in my view, there's a kernel bug, in that it allows a user land application to put an inode into a "wrong" state. This particular test is designed to reproduce this kernel bug, so that the kernel fix can be verified that is indeed a fix. I can't use xfs_io here, because it will do the "right" thing - set the EXTSIZE/EXTSZINHERIT flags correctly; but this is a test that the kernel protects the inode invariants, not that xfs_io does so. Alternatively, you could say that it's perfectly fine to have a non-zero fsx_extsize, and that only when the flag is set it should be taken into account; but I don't think that is what the rest of the code expects today. So, I'm fine either way, but I would to fix this so that all the code agrees what the correct states for an inode are, and that the kernel prevents user space from violating this assumption via a (documented) ioctl. Just let me know which are the correct states. Thanks for the feedback, and for such a quick reply. iustin From stan@hardwarefreak.com Thu Aug 28 17:31:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 214CB7F3F for ; Thu, 28 Aug 2014 17:31:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 957CBAC001 for ; Thu, 28 Aug 2014 15:31:35 -0700 (PDT) X-ASG-Debug-ID: 1409265093-04cb6c54fd647100001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id tjQ8d6FaPIdKMWvp for ; Thu, 28 Aug 2014 15:31:34 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id 8F64A6C192; Thu, 28 Aug 2014 17:31:33 -0500 (CDT) To: Dave Chinner Subject: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Thu, 28 Aug 2014 17:31:33 -0500 From: Stan Hoeppner Cc: In-Reply-To: <20140828003226.GO20518@dastard> References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> Message-ID: <7f9e5aef187b44e899077467aeb0809d@localhost> X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409265094 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Thu, 28 Aug 2014 10:32:27 +1000, Dave Chinner wrote: > On Tue, Aug 26, 2014 at 12:19:43PM -0500, Stan Hoeppner wrote: >> On Tue, 26 Aug 2014 17:53:45 +1000, Dave Chinner >> wrote: >> > On Tue, Aug 26, 2014 at 01:18:50AM -0500, Stan Hoeppner wrote: >> >> Had some controller issues but believe we had those ironed out before >> >> this >> >> recent breakage. I had reformatted both 48TB LUNs on this test box >> with >> >> -f >> >> and defaults, and fired up the test app again. Throughput was >> fantastic >> >> with no dropped application buffers for ~30 minutes, and IO times were >> >> 1.x >> >> ms max, suggesting all the writes were acked by controller cache. The >> >> app >> >> was running perfectly. Then it hanged and spit out an internal error >> >> msg: >> >> >> >> >> >> Failed to reopen file /mnt/VOL1/sg-04/str-0015/f-0000000005 >> >> >> >> I have many call traces in dmesg, most are XFS, pasted below. I found >> no >> >> SCSI I/O errors in dmesg. Application is submitting writes via libaio >> >> and >> >> using O_DIRECT, writing to preallocated files. I don't see any errors >> in >> >> the storage controller log and everything seems to check out there. >> >> Using >> >> noop elevator, mpt2sas, no multipathing. The application process is >> hung >> >> in d state and kill -9 won't get rid of it. I can't unmount the hosed >> up >> >> filesystem. Any ideas? >> >> >> >> # ls -la /mnt/VOL1 >> >> ls: cannot access /mnt/VOL1: Input/output error >> >> >> >> # dd if=/mnt/VOL1 of=/dev/null bs=1M count=16 >> >> dd: opening `/mnt/VOL1': Input/output error >> >> >> >> # dd if=/dev/sdd of=/dev/null bs=1M count=16 >> >> 16+0 records in >> >> 16+0 records out >> >> 16777216 bytes (17 MB) copied, 1.10989 s, 15.1 MB/s >> >> >> >> # ls -la /mnt/ >> >> ls: cannot access /mnt/VOL1: Input/output error >> >> total 8 >> >> drwxrwxrwt 6 root root 120 Aug 25 17:59 . >> >> drwxr-xr-x 21 root root 4096 Jul 15 09:39 .. >> >> drwxrwxrwt 3 root root 80 Aug 25 16:52 initramfs >> >> drwxr-xr-x 3 root root 4096 Apr 24 04:57 scratch >> >> drwxrwxrwx 5 root root 58 Aug 25 22:06 VOL0 >> >> d????????? ? ? ? ? ? VOL1 >> > >> > That's an inode we failed to stat() - most likely because of the IO >> > error. Has the filesystem shut down? the IO error shoul dhave had >> > some kind of output in dmesg associated with it from XFS.... >> >> Sorry, I omitted the XFS logging preceding the first call trace: >> >> Aug 25 18:02:50 Anguish-ssu-1 kernel: [ 4280.310304] SGI XFS with >> security >> attributes, large block/inode numbers, no debug enabled >> Aug 25 18:02:50 Anguish-ssu-1 kernel: [ 4280.311101] XFS (sdc): Mounting >> Filesystem >> Aug 25 18:02:51 Anguish-ssu-1 kernel: [ 4280.501405] XFS (sdc): Starting >> recovery (logdev: internal) >> Aug 25 18:02:53 Anguish-ssu-1 kernel: [ 4282.766547] XFS (sdc): Failed to >> recover EFIs >> Aug 25 18:02:53 Anguish-ssu-1 kernel: [ 4282.766549] XFS (sdc): log mount >> finish failed > > That's indicative of corrupted free space btrees. I did mkfs on both LUNs after this mount failure. >> Aug 25 18:04:50 Anguish-ssu-1 kernel: [ 4399.471829] XFS (sdc): Mounting >> Filesystem >> Aug 25 18:04:50 Anguish-ssu-1 kernel: [ 4399.620805] XFS (sdc): Ending >> clean mount >> Aug 25 18:04:56 Anguish-ssu-1 kernel: [ 4405.613778] XFS (sdd): Mounting >> Filesystem >> Aug 25 18:04:56 Anguish-ssu-1 kernel: [ 4405.835412] XFS (sdd): Ending >> clean mount The back-to-back mounts here were me testing my storage prep automation script - creates the mount points, sets permission, mounts the filesystems, sets the elevator to noop, etc. (their kernel defaults to CFQ...) >> Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): >> xfs_do_force_shutdown(0x8) called from line 3732 of file >> fs/xfs/xfs_bmap.c. >> Return address = 0xffffffffa01cc9a6 > > Yup, that's kinda important. That's from xfs_bmap_finish(), and > freeing an extent has failed and triggered SHUTDOWN_CORRUPT_INCORE > which it's found some kind of inconsistency in the free space > btrees. So, likely the same problem that caused EFI recovery to fail > on the other volume. > > Are the tests being run on newly made filesystems? If not, have > these filesystems had xfs_repair run on them after a failure? If > so, what is the error that is fixed? If not, does repairing the > filesystem make the problem go away? Newly made after every error of any kind, whether app, XFS shutdown, call trace, etc. I've not attempted xfs_repair. Part of the problem is the storage hardware is a moving target. They're swapping modules and upgrading firmware every few days. And I don't have a view into that. So it's difficult to know when IO problems are due to hardware or buggy code. However, I can state with certainty that we only run into the XFS problems when using AIO. And it has occurred on both test rigs, each of which have their own RAID controllers and disks. >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307128] XFS (sdd): failed to >> update timestamps for inode 0x2a000000a4 >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307484] XFS (sdd): failed to >> update timestamps for inode 0x29000000a4 >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307487] XFS (sdd): failed to >> update timestamps for inode 0x20000009f >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307499] XFS (sdd): failed to >> update timestamps for inode 0x29000000a4 >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.307693] XFS (sdd): failed to >> update timestamps for inode 0x20000009f >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.368106] XFS (sdd): failed to >> update timestamps for inode 0xf000000a4 >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.369785] XFS (sdd): failed to >> update timestamps for inode 0xf000000a4 >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.605835] XFS (sdd): failed to >> update timestamps for inode 0x2810f413c >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.606169] XFS (sdd): failed to >> update timestamps for inode 0x60000009f > > And that is interesting. Makes me wonder if the inode is getting > unlocked on transaction commit failure, or whether there's some > other path in the shutdown code that is not unlocking the inode > correctly. Is this a separate time stamp from that which noatime disables? We're mounting with noatime, nodiratime. >> Again, when the app locked up I was assuming we had more controller >> issues, and I expected to find SCSI I/O errors preceding the XFS errors. >> But there are none. > > XFs has had some kind of internal error in extent or freespace > management. The lack of output when the error has triggered makes it > impossible to determine what might have gone wrong. Seeing what > xfs_repair -n says about the filesystem woul dbe interesting. > Probably best to use an xfs-repair from the current 3.2.1 release, > because older 3.1.x versions (i think 3.1.10 and prior) didn't > validate the freespace btrees - they just got rebuilt. I'm hoping to be able to get kernel 3.12.26 onto the smaller rig soon so I can test bcache. I'll enable xfs_debug on it. WRT newer user space tools, that's like pulling teeth. It's all like like pulling teeth actually, WRT the platform software. WRT the app we can do whatever we want. >> These aren't truly lab systems in all respects. I don't have the >> permission/access to change the kernel config and recompile. There is a >> "process" for that and a different group owns that process. If this is >> necessary to troubleshoot this then I'll see if I can push it through. > > Good luck, it sounds like you might have a few stories for the > Daily WTF if the "processes" at that so entrenched it's impossible > to test fixes. Yes, it's difficult. I won't be able to test patches as things stand. That will require much time, many meetings, my project manager throwing chairs, that kinda thing. And he's very mild mannered. >> > I haven't cheked if this still works on a 3.4 kernel, but it will >> > change the rwsem implementation to the generic, spinlock based >> > implementation rather than the super-special, highly optimised >> > x86 specific implementation. If that makes the problem go away, >> > then we've got another rwsem bug on our hands. If it doesn't, then I >> > can probably get you the mrlock debug code lachlan wrote and we can >> > see if XFS is doing something wrong... >> >> Thanks for the detailed explanation. Given the new information I've >> provided, what is my next step? > > xfs_repair output, turn /proc/sys/fs/xfs/error_level up to 11, > maybe run a test with a CONFIG_XFS_DEBUG=y kernel, or even a > current 3.15/3.16 kernel to see if the problem still exists... > > But if you can't get new kernels or xfsprogs binaries onto the > machine, then there is very little that we can do. One would think such a thing would be easy, a no brainer. But this is a large corporation after all, so I shouldn't be surprised by red tape. The fact it took them over 3 months from contact to getting me in the door was a bit of a clue up front. I think the way this is seen is that AIO would be nice to have, but it's not a necessity. Not with the red tape to cut through to get newer system software... > Cheers, > > Dave. -- Stan From iustin@google.com Thu Aug 28 17:34:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 1BFFE7F3F for ; Thu, 28 Aug 2014 17:34:19 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id D60128F8050 for ; Thu, 28 Aug 2014 15:34:18 -0700 (PDT) X-ASG-Debug-ID: 1409265256-04bdf010975da720001-NocioJ Received: from mail-ie0-f182.google.com (mail-ie0-f182.google.com [209.85.223.182]) by cuda.sgi.com with ESMTP id hBeUYaUox3h5cNoA (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 28 Aug 2014 15:34:17 -0700 (PDT) X-Barracuda-Envelope-From: iustin@google.com X-Barracuda-Apparent-Source-IP: 209.85.223.182 X-Barracuda-IPDD: Level1 [google.com/209.85.223.182] Received: by mail-ie0-f182.google.com with SMTP id rd18so1845133iec.13 for ; Thu, 28 Aug 2014 15:34:16 -0700 (PDT) X-Barracuda-IPDD: Level1 [google.com/209.85.223.182] X-Barracuda-IPDD: Level1 [google.com/209.85.223.182] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=a7us+giFBJZr8RxGy+FSsTo46eZ+FWnokQouek8BuJU=; b=ALR7w4Yzz2Tq8j0tmsZ9njLC/yAa7Bm3S5sR1hpIznX5TIZ9m70Xyweh7mnB3g8uFm M9xkiOeNV8KfJLqTW+ZkHyqbxLgDBGRAGNEsEYp79RursSBcGx/zZWfKDlAVMQptRiPr bYbSe/jWV8oLn3Hsv7nvON2qM7YLzAKglUZLwWt74m0IXzW2TS4cHi7u+rzL0c6mfLZB qOuhKfYpnomH5sTc3RYtnUVRoa5NtkoV8MwPHJw/xjc7SHHiQ5OBrUE0YBA4nV79r4tv 1Vz803e1J+WDj8aWDRPQI8CfAnFVcyz1J5SoifKWATRb4CzwKxL4SzvVITKlr84gVvrp K//g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; bh=a7us+giFBJZr8RxGy+FSsTo46eZ+FWnokQouek8BuJU=; b=jKX/EEXajdOrS9vJxiia6gSp7xLTvUxVt1yVoN/wPp5FzQ9JT+HRgylLnCOagyOxDX aYsQx4Q9nG4VzVooWSviglEHtU6dmscfKeqlIZeDidvbtQvceVWtvHz4J6PWZC/fLsr9 2p2CZUzScHbPi/sS5RtAcBRws2slifgYdSkfQ5OE+HOovQcHCxF+vPcNs1cnaeV3UOOw a747QgLBPyxfoYGqcKGceaSPPkwowZJrp/faR50rQiedzGxxS76qCw3cHRpAwvT5c+ee qTUcYgCFq0lD4LyVucVPPrQ/c4mffRifqn3GKNo7DM668q9TASYVY09AWJeYeeVR0JAC YQpg== X-Gm-Message-State: ALoCoQlBmPwWnTZlDKjagZeO8ioUbaxXOhCdBNPLIeytDV3H/9yCO9Ol+23PSctvD6UQklKGYP6i X-Received: by 10.50.112.67 with SMTP id io3mr8992582igb.37.1409265256606; Thu, 28 Aug 2014 15:34:16 -0700 (PDT) Received: from google.com ([2620:0:1009:a:64ad:58d0:8abd:1cc]) by mx.google.com with ESMTPSA id dx10sm21744805igb.4.2014.08.28.15.34.15 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 28 Aug 2014 15:34:15 -0700 (PDT) Date: Thu, 28 Aug 2014 15:34:14 -0700 From: Iustin Pop To: Dave Chinner Cc: Iustin Pop , xfs@oss.sgi.com, hch@infradead.org Subject: Re: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories Message-ID: <20140828223414.GC29940@google.com> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories References: <20140718191314.GB27801@teal.hq.k1024.org> <1409199773-16802-1-git-send-email-iusty@k1024.org> <20140828093158.GR20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140828093158.GR20518@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: mail-ie0-f182.google.com[209.85.223.182] X-Barracuda-Start-Time: 1409265257 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8931 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Don, Aug 28, 2014 at 07:31:58 +1000, Dave Chinner wrote: > On Wed, Aug 27, 2014 at 09:22:53PM -0700, Iustin Pop wrote: > > Currently, the ioctl handling code for XFS_IOC_FSSETXATTR treats all > > targets as regular files: it refuses to change the extent size if > > extents are allocated. This is wrong for directories, as there the > > extent size is only used as a default for children. > > > > The patch fixes this by only checking for allocated extents for regular > > files; it leaves undefined what it means to set an extent size on a > > non-regular, non-directory inode. Additionally, when setting a non-zero > > extent size, the appropriate flags (EXTSIZE, respectively EXTSZINHERIT) > > are enforced for regular files and directories. > > > > Signed-off-by: Iustin Pop > > --- > > A patch against xfstests to test for the fixed behaviour will follow > > shortly. > > > > fs/xfs/xfs_ioctl.c | 34 ++++++++++++++++++++++++++-------- > > 1 file changed, 26 insertions(+), 8 deletions(-) > > > > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > > index 8bc1bbc..5b9acd2 100644 > > --- a/fs/xfs/xfs_ioctl.c > > +++ b/fs/xfs/xfs_ioctl.c > > @@ -1116,14 +1116,32 @@ xfs_ioctl_setattr( > > } > > > > if (mask & FSX_EXTSIZE) { > > - /* > > - * Can't change extent size if any extents are allocated. > > - */ > > - if (ip->i_d.di_nextents && > > - ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != > > - fa->fsx_extsize)) { > > - code = XFS_ERROR(EINVAL); /* EFBIG? */ > > - goto error_return; > > Doesn't apply to a current 3.17-rc1 tree. Can you update the patch? Will do, thanks. Is it correct to use git://oss.sgi.com/xfs/xfs, master branch as what I should rebase it on top of? > > + if (S_ISDIR(ip->i_d.di_mode)) { > > + /* > > + * Enforce setting the EXTSZINHERIT flag when > > + * a non-zero extent size has been specified. > > + */ > > + if (fa->fsx_extsize) { > > + fa->fsx_xflags |= XFS_XFLAG_EXTSZINHERIT; > > + } > > + } else if (S_ISREG(ip->i_d.di_mode)) { > > + /* > > + * For a regular file, we can't change extent > > + * size if any extents are allocated. > > + */ > > + if (ip->i_d.di_nextents && > > + ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != > > + fa->fsx_extsize)) { > > + code = XFS_ERROR(EINVAL); /* EFBIG? */ > > + goto error_return; > > + } > > + /* > > + * Enforce setting the EXTSIZE flag when > > + * a non-zero extent size has been specified. > > + */ > > + if (fa->fsx_extsize) { > > + fa->fsx_xflags |= XFS_XFLAG_EXTSIZE; > > + } > > } > > Hmmmm. That's not validating/enforcing the correct use of > XFS_XFLAG_EXTSIZE or XFS_XFLAG_EXTSZINHERIT, that's setting it > implicitly based on the type of inode. > > If we are going to enforce this properly, then XFS_XFLAG_EXTSIZE is > only valid for a regular file, and XFS_XFLAG_EXTSZINHERIT is only > valid on a directory, and the flags on th einode should only be set > if the hint is not zero. i.e: > > if (mask & FSX_EXTSIZE) { > error = -EINVAL; > > /* validate the flags are set appropriately */ > if ((fa->fsx_xflags & XFS_XFLAG_EXTSIZE) && > !S_ISREG(ip->i_d.di_mode)) > goto error_return; > if ((fa->fsx_xflags & XFS_XFLAG_EXTSZINHERIT) && > !S_ISDIR(ip->i_d.di_mode)) > goto error_return; This only prevents invalid flags, but doesn't prevent setting a non-zero extent_size without the appropriate flag. We already are having this discussion in the other patch, so I'll defer this to that. But aside from that, the current code that actually applies the flag changes (xfs_set_diflags) implicitly drops invalid flags - that's why I didn't bother to validate the flags here. If we want to do validation, maybe we should validate (with error, not silently) in that function, instead of here? thanks, iustin From david@fromorbit.com Thu Aug 28 17:37:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id A74777F3F for ; Thu, 28 Aug 2014 17:37:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 7DD468F8050 for ; Thu, 28 Aug 2014 15:37:11 -0700 (PDT) X-ASG-Debug-ID: 1409265429-04bdf010a15daa00001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id ArJgpXHTN4FBNSWM for ; Thu, 28 Aug 2014 15:37:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisaAOut/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTQYGmjmFcgGBHBcFAQEBATg2hAQBBScTHCMQCAMOCgklDwUlAwcaE4hBv3EXGIVkiVAHhEwBBJxZiy5rjHUrL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 08:07:08 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XN8JW-0001wl-7Y; Fri, 29 Aug 2014 08:37:06 +1000 Date: Fri, 29 Aug 2014 08:37:06 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF Message-ID: <20140828223706.GT20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-2-git-send-email-david@fromorbit.com> <20140828133457.GA35386@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140828133457.GA35386@bfoster.bfoster> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409265429 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8931 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 09:34:57AM -0400, Brian Foster wrote: > On Thu, Aug 28, 2014 at 09:49:05PM +1000, Dave Chinner wrote: > > +/* > > + * This is basically a copy of __set_page_dirty_buffers() with one > > + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them > > + * dirty, we'll never be able to clean them because we don't write buffers > > + * beyond EOF, and that means we can't invalidate pages that span EOF > > + * that have been marked dirty. Further, the dirty state can leak into > > + * the file interior if the file is extended, resulting in all sorts of > > + * bad things happening as the state does not match the unerlying data. > > + */ > > +STATIC int > > +xfs_vm_set_page_dirty( > > + struct page *page) > > +{ > > + struct address_space *mapping = page->mapping; > > + struct inode *inode = mapping->host; > > + loff_t end_offset; > > + loff_t offset; > > + int newly_dirty; > > + > > + if (unlikely(!mapping)) > > + return !TestSetPageDirty(page); > > + > > + end_offset = i_size_read(inode); > > + offset = end_offset & PAGE_CACHE_MASK; > > Is this what you intended to do here? > > offset = page_offset(page); Yup, that's a bug. Which points out just how important the buffer dirty flag is (not) to XFS, doesn't it? I'll post a fixed patch in a few minutes after it's run a few tens of millions fsx ops... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 28 18:10:40 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 166247F3F for ; Thu, 28 Aug 2014 18:10:40 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 055028F8054 for ; Thu, 28 Aug 2014 16:10:36 -0700 (PDT) X-ASG-Debug-ID: 1409267434-04cbb054858d3eb0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id vFPHRZX4u6cAcH2U for ; Thu, 28 Aug 2014 16:10:34 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AiwaAF+2/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTQYGmjmFcgGBFBcFAQEBATg2hAMBAQQBOhwjBQsIAxgJJQ8FJQMHGhOIOge/bxcYhWSIeQ4HQgeETAWPG40+iy6NYCsvgQcBHoEpAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 08:38:19 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XN8ni-00021C-0x; Fri, 29 Aug 2014 09:08:18 +1000 Date: Fri, 29 Aug 2014 09:08:17 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140828230817.GU20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7f9e5aef187b44e899077467aeb0809d@localhost> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409267434 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8931 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 05:31:33PM -0500, Stan Hoeppner wrote: > On Thu, 28 Aug 2014 10:32:27 +1000, Dave Chinner wrote: > > On Tue, Aug 26, 2014 at 12:19:43PM -0500, Stan Hoeppner wrote: > >> Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): > >> xfs_do_force_shutdown(0x8) called from line 3732 of file > >> fs/xfs/xfs_bmap.c. > >> Return address = 0xffffffffa01cc9a6 > > > > Yup, that's kinda important. That's from xfs_bmap_finish(), and > > freeing an extent has failed and triggered SHUTDOWN_CORRUPT_INCORE > > which it's found some kind of inconsistency in the free space > > btrees. So, likely the same problem that caused EFI recovery to fail > > on the other volume. > > > > Are the tests being run on newly made filesystems? If not, have > > these filesystems had xfs_repair run on them after a failure? If > > so, what is the error that is fixed? If not, does repairing the > > filesystem make the problem go away? > > Newly made after every error of any kind, whether app, XFS shutdown, call > trace, etc. I've not attempted xfs_repair. Please do. > Part of the problem is the storage hardware is a moving target. > They're swapping modules and upgrading firmware every few days. > And I don't have a view into that. So it's difficult to know when > IO problems are due to hardware or buggy code. However, I can > state with certainty that we only run into the XFS problems when > using AIO. And it has occurred on both test rigs, each of which > have their own RAID controllers and disks. Which, in and of itself doesn't point at AIO or XFS being the problem. What is says is that something goes wrong under the extremely high IO load that can be generated with AIO+DIO. That "something" might be a race in XFS, a bug in AIO, or could be a load related storage problem. For example, I've been on the wrong end of hard to track down problems on beta/early access storage before. For example there was an incident years ago that took 3 more than 3 months to isolate a filesystem corruption that occurred under high load. It took that long to isolate a test case, reproduce it in house on identical hardware, firmware, software, etc and then *capture it with a FC analyser*. The bug? The bleeding edge storage arrays being used had had a firmware bug in it. When the number of outstanding IOs hit the *array controller* command tag queue depth limit (some several thousand simultaneous IOs in flight) it would occasionally misdirect a single write IO to the *wrong lun*. i.e. it would misdirect a write. It was only under *extreme* loads that this would happen, and it's this sort of load that AIO+DIO can easily generate - you can have several thousand IOs in flight without too much hassle, and that will hit limits in the storage arrays that aren't often hit. Array controller CTQ depth limits are a good example of a limit that normal IO won't go near to stressing. > >> update timestamps for inode 0xf000000a4 > >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.605835] XFS (sdd): failed > to > >> update timestamps for inode 0x2810f413c > >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.606169] XFS (sdd): failed > to > >> update timestamps for inode 0x60000009f > > > > And that is interesting. Makes me wonder if the inode is getting > > unlocked on transaction commit failure, or whether there's some > > other path in the shutdown code that is not unlocking the inode > > correctly. > > Is this a separate time stamp from that which noatime disables? We're > mounting with noatime, nodiratime. Yes. mtime/ctime updates go through this on the write path. Cheers, Dave. -- Dave Chinner david@fromorbit.com From xfactor973@gmail.com Thu Aug 28 18:14:30 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A51197F47 for ; Thu, 28 Aug 2014 18:14:30 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 846CF30405F for ; Thu, 28 Aug 2014 16:14:27 -0700 (PDT) X-ASG-Debug-ID: 1409267665-04bdf0109a5dc660001-NocioJ Received: from mail-ie0-f171.google.com (mail-ie0-f171.google.com [209.85.223.171]) by cuda.sgi.com with ESMTP id tO1yRPzEmOGN1KoL (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 28 Aug 2014 16:14:25 -0700 (PDT) X-Barracuda-Envelope-From: xfactor973@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.171 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.171] Received: by mail-ie0-f171.google.com with SMTP id rp18so1866688iec.2 for ; Thu, 28 Aug 2014 16:14:25 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.171] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.171] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=REfcMvhPZviciAid4CbVIx+F6+PKA4eqyAUfwd11nmk=; b=gFeVD7D9fZpadxGiMvy5F4TVPH5H3ev1Qi2wmEVD7HR2YrvDbDrMNXyaTqvSygU5Xy Bt/viNZAhEFYY1qtcsSCSzPoLjNBiRSOrysgJpvl1b85+cz6xpS5nXjiencHxSjovluv zkGnfx29VI7vp3Q8ICugblf4RBWudyLdEiBXzmOP8bWtWEtpEjyj9VYAqfhXK+0nWJx0 DLIeNEfeCFyG+Qhe400VU78UB1ki1x/oL3SaopN2+7NfGm22KXm3QzFPJats9lXeliEu FDOCjUlvI96W2X+HmVQrQipxz/T7V/+NDLE4TDXtMpwM2fh93ZWsiteICWESPO+n88WI BDFA== MIME-Version: 1.0 X-Received: by 10.50.93.74 with SMTP id cs10mr78517igb.46.1409267665131; Thu, 28 Aug 2014 16:14:25 -0700 (PDT) Received: by 10.50.132.41 with HTTP; Thu, 28 Aug 2014 16:14:25 -0700 (PDT) Date: Thu, 28 Aug 2014 16:14:25 -0700 Message-ID: Subject: Find hardlinks to a file From: Chris Holcombe X-ASG-Orig-Subj: Find hardlinks to a file To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-ie0-f171.google.com[209.85.223.171] X-Barracuda-Start-Time: 1409267665 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8931 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature My apologies if this has already been asked. I feel that I've done a sufficient amount of Google search homework. I'm working with Gluster (http://www.gluster.org/) and they have a directory called xattrop where they store links to files that need to be healed. When I stat the file I can see that there's 2 or 3 hard links to the file. I can't seem to find a way in code or with an xfs_* utility to find the path of those hard links. Does anyone know how to do this or if it's even possible? From looking through the XFS documentation I don't really see a way to do it without a find /mount_point -num brute force method. btrfs has a utility called: btrfs inspect-internal inode-resolve [-v] Resolves an in subvolume to all filesystem paths. I'd like to build an equivalent tool in C for XFS if it's possible. Thanks, Chris From david@fromorbit.com Thu Aug 28 18:29:24 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C66F17F3F for ; Thu, 28 Aug 2014 18:29:24 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 52517AC001 for ; Thu, 28 Aug 2014 16:29:21 -0700 (PDT) X-ASG-Debug-ID: 1409268557-04cb6c5500649e40001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id 752iW49yFYcS868T for ; Thu, 28 Aug 2014 16:29:17 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArQrAOq5/1N5LDJ8PGdsb2JhbABbgw1TV4IsiyyhKAYGmFyBXYVtAwIBgRUXBQEBAQE4NoQEAQUnExwjEAgDDgoJJQ8FJQMHGhMJiDgOv18XGIVkiVAHhEwFhQQCkFeGfIFciVKNYCsvAQEBAYJLAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 08:59:16 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XN97z-00023R-6B; Fri, 29 Aug 2014 09:29:15 +1000 Date: Fri, 29 Aug 2014 09:29:15 +1000 From: Dave Chinner To: Chris Holcombe Cc: xfs@oss.sgi.com Subject: Re: Find hardlinks to a file Message-ID: <20140828232915.GV20518@dastard> X-ASG-Orig-Subj: Re: Find hardlinks to a file References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409268557 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8932 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 04:14:25PM -0700, Chris Holcombe wrote: > My apologies if this has already been asked. I feel that I've done a > sufficient amount of Google search homework. I'm working with Gluster > (http://www.gluster.org/) and they have a directory called xattrop > where they store links to files that need to be healed. When I stat > the file I can see that there's 2 or 3 hard links to the file. I > can't seem to find a way in code or with an xfs_* utility to find the > path of those hard links. Does anyone know how to do this or if it's > even possible? From looking through the XFS documentation I don't > really see a way to do it without a find /mount_point -num > brute force method. btrfs has a utility called: > > btrfs inspect-internal inode-resolve [-v] > Resolves an in subvolume to all filesystem > paths. > > I'd like to build an equivalent tool in C for XFS if it's possible. You need help from the filesystem, both in terms of the on-disk format and the kernel code needed to push that information back out to userspace. Indeed, this is the functionality we need for reverse inode->path lookups: http://thread.gmane.org/gmane.comp.file-systems.xfs.general/27772 (parent pointers, for those that don't want to follow the link) Right now it's state is in limbo. We have a more recent design, but since SGI has dropped off the edge of the world, nobody is working on it. It's on my radar along with reverse mapping btrees for filesystem block to inode lookups so that we can do all of this sort of stuff easily without needing to walk the entire filesystem to find the forward pointers to objects.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 28 18:50:39 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8C3E47F4E for ; Thu, 28 Aug 2014 18:50:39 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 08B63AC003 for ; Thu, 28 Aug 2014 16:50:38 -0700 (PDT) X-ASG-Debug-ID: 1409269836-04cb6c54fe64ad90001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id J5wUKdI7Er6KTMjd for ; Thu, 28 Aug 2014 16:50:36 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisaAPS//1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTgYGmjmFcgGBFRcFAQEBATg2hAQBBScTHCMQCBEHDCUPBSUDBxoTG4gmv3EXGIVkiVAHhEwFnFmLLmuKaR6Bbisvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 09:20:01 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XN9Rc-00026r-M2; Fri, 29 Aug 2014 09:49:32 +1000 Date: Fri, 29 Aug 2014 09:49:32 +1000 From: Dave Chinner To: Brian Foster Cc: xfs@oss.sgi.com Subject: [PATCH 1/7 v2] xfs: don't dirty buffers beyond EOF Message-ID: <20140828234932.GW20518@dastard> X-ASG-Orig-Subj: [PATCH 1/7 v2] xfs: don't dirty buffers beyond EOF References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-2-git-send-email-david@fromorbit.com> <20140828133457.GA35386@bfoster.bfoster> <20140828223706.GT20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140828223706.GT20518@dastard> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409269836 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8932 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- From: Dave Chinner generic/263 is failing fsx at this point with a page spanning EOF that cannot be invalidated. The operations are: 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO write attempts to invalidate the cached page over this range, it fails with -EBUSY and so any attempt to do page invalidation fails. The real question is this: Why can't that page be invalidated after it has been written to disk and cleaned? Well, there's data on the first two buffers in the page (1k block size, 4k page), but the third buffer on the page (i.e. beyond EOF) is failing drop_buffers because it's bh->b_state == 0x3, which is BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say what? OK, set_buffer_dirty() is called on all buffers from __set_page_buffers_dirty(), regardless of whether the buffer is beyond EOF or not, which means that when we get to ->writepage, we have buffers marked dirty beyond EOF that we need to clean. So, we need to implement our own .set_page_dirty method that doesn't dirty buffers beyond EOF. This is messy because the buffer code is not meant to be shared and it has interesting locking issues on the buffer dirty bits. So just copy and paste it and then modify it to suit what we need. Note: the solutions the other filesystems and generic block code use of marking the buffers clean in ->writepage does not work for XFS. It still leaves dirty buffers beyond EOF and invalidations still fail. Hence rather than play whack-a-mole, this patch simply prevents those buffers from being dirtied in the first place. cc: Signed-off-by: Dave Chinner --- v2: fix page offset calculation. passed 61 million fsx ops before hitting an unrelated problem in xfs_zero_file_space(), so no difference to the result with this updated patch. fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index 11e9b4c..9bd2f53 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -1753,11 +1753,69 @@ xfs_vm_readpages( return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); } +/* + * This is basically a copy of __set_page_dirty_buffers() with one + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them + * dirty, we'll never be able to clean them because we don't write buffers + * beyond EOF, and that means we can't invalidate pages that span EOF + * that have been marked dirty. Further, the dirty state can leak into + * the file interior if the file is extended, resulting in all sorts of + * bad things happening as the state does not match the unerlying data. + */ +STATIC int +xfs_vm_set_page_dirty( + struct page *page) +{ + struct address_space *mapping = page->mapping; + struct inode *inode = mapping->host; + loff_t end_offset; + loff_t offset; + int newly_dirty; + + if (unlikely(!mapping)) + return !TestSetPageDirty(page); + + end_offset = i_size_read(inode); + offset = page_offset(page); + + spin_lock(&mapping->private_lock); + if (page_has_buffers(page)) { + struct buffer_head *head = page_buffers(page); + struct buffer_head *bh = head; + + do { + if (offset < end_offset) + set_buffer_dirty(bh); + bh = bh->b_this_page; + offset += 1 << inode->i_blkbits; + } while (bh != head); + } + newly_dirty = !TestSetPageDirty(page); + spin_unlock(&mapping->private_lock); + + if (newly_dirty) { + /* sigh - __set_page_dirty() is static, so copy it here, too */ + unsigned long flags; + + spin_lock_irqsave(&mapping->tree_lock, flags); + if (page->mapping) { /* Race with truncate? */ + WARN_ON_ONCE(!PageUptodate(page)); + account_page_dirtied(page, mapping); + radix_tree_tag_set(&mapping->page_tree, + page_index(page), PAGECACHE_TAG_DIRTY); + } + spin_unlock_irqrestore(&mapping->tree_lock, flags); + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); + } + return newly_dirty; +} + const struct address_space_operations xfs_address_space_operations = { .readpage = xfs_vm_readpage, .readpages = xfs_vm_readpages, .writepage = xfs_vm_writepage, .writepages = xfs_vm_writepages, + .set_page_dirty = xfs_vm_set_page_dirty, .releasepage = xfs_vm_releasepage, .invalidatepage = xfs_vm_invalidatepage, .write_begin = xfs_vm_write_begin, From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:18:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id A3D677F51 for ; Thu, 28 Aug 2014 19:18:59 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 83D2E304048 for ; Thu, 28 Aug 2014 17:18:55 -0700 (PDT) X-ASG-Debug-ID: 1409271533-04cbb054858d72d0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id UIFYfmHbyptg5gXA (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:18:54 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XN9u1-0004dY-Ji; Fri, 29 Aug 2014 00:18:53 +0000 Date: Thu, 28 Aug 2014 17:18:53 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference Message-ID: <20140829001853.GA17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/9] xfs: synchronous buffer IO needs a reference References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409271534 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:22:14 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 89D347F54 for ; Thu, 28 Aug 2014 19:22:14 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 2457EAC002 for ; Thu, 28 Aug 2014 17:22:10 -0700 (PDT) X-ASG-Debug-ID: 1409271729-04cb6c54ff64c790001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 5F3MiaEsV5RR2VkB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:22:10 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XN9xB-0005rq-Fa; Fri, 29 Aug 2014 00:22:09 +0000 Date: Thu, 28 Aug 2014 17:22:09 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-ID: <20140829002209.GB17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409271729 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8933 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- > STATIC void needs the static removed as pointed out by Brian. > - bool read = !!(bp->b_flags & XBF_READ); > + bool read = !!(bp->b_flags & XBF_READ); We don't really need the double negation here. Otherwise this looks reasonable to me. From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:23:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 377A57F56 for ; Thu, 28 Aug 2014 19:23:58 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 23B3D304039 for ; Thu, 28 Aug 2014 17:23:58 -0700 (PDT) X-ASG-Debug-ID: 1409271836-04cbb054858d75a0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id wFgZyw6wCZuNkZrn (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:23:57 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XN9yu-0005yB-KC; Fri, 29 Aug 2014 00:23:56 +0000 Date: Thu, 28 Aug 2014 17:23:56 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling Message-ID: <20140829002356.GC17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 3/9] xfs: rework xfs_buf_bio_endio error handling References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409271837 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Aug 15, 2014 at 04:39:01PM +1000, Dave Chinner wrote: > In doing so, allow xfs_buf_iorequest to return an error. That way, > the caller can check for submission errors safely if required, and > easily distinguish them from completion errors that come from > xfs_buf_iowait(). While this looks correct to me it also looks confusing. Why can't we simply propagat the submission errors through error returns and use ->b_error for completion errors instead? From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:24:38 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4EC2D7F5A for ; Thu, 28 Aug 2014 19:24:38 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 2C92E304039 for ; Thu, 28 Aug 2014 17:24:38 -0700 (PDT) X-ASG-Debug-ID: 1409271877-04bdf010a15df8f0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 5qAxGklIBljrE8BH (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:24:37 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XN9zY-000622-VR; Fri, 29 Aug 2014 00:24:36 +0000 Date: Thu, 28 Aug 2014 17:24:36 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/9] xfs: kill xfs_bdstrat_cb Message-ID: <20140829002436.GD17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 4/9] xfs: kill xfs_bdstrat_cb References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409271877 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 15, 2014 at 04:39:02PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Only has two callers, and is just a shutdown check and error handler > around xfs_buf_iorequest. However, the error handling is a mess of > read and write semantics, and both internal callers only call it for > writes. Hence kill the wrapper, and follow up with a patch to > sanitise the error handling. > > Signed-off-by: Dave Chinner Looks good, Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:28:29 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B35AC7F58 for ; Thu, 28 Aug 2014 19:28:29 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id A1DB88F8050 for ; Thu, 28 Aug 2014 17:28:26 -0700 (PDT) X-ASG-Debug-ID: 1409272105-04cbb054858d78e0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id OADylS16aNAkC9r9 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:28:25 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNA3F-0003PQ-BV; Fri, 29 Aug 2014 00:28:25 +0000 Date: Thu, 28 Aug 2014 17:28:25 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/9] xfs: xfs_bioerror can die. Message-ID: <20140829002825.GE17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 5/9] xfs: xfs_bioerror can die. References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-6-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-6-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409272105 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Aug 15, 2014 at 04:39:03PM +1000, Dave Chinner wrote: > Internal buffer write error handling is a mess due to the unnatural > split between xfs_bioerror and xfs_bioerror_relse(). The buffer > reference counting is also wrong for the xfs_bioerror path for > xfs_bwrite - it uses sync IO and so xfs_buf_ioend will release a > hold count that was never taken. Which seems to be cause by patch 1 in the series, and thus the additional hold for the error case should be introduced there. Otherwise this looks good to me. From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:33:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E6A817F5E for ; Thu, 28 Aug 2014 19:33:06 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 63DD3AC002 for ; Thu, 28 Aug 2014 17:33:06 -0700 (PDT) X-ASG-Debug-ID: 1409272377-04cb6c550064cee0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id y3qeVsHvBX67wrAL (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:32:58 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNA7d-0004jy-CI; Fri, 29 Aug 2014 00:32:57 +0000 Date: Thu, 28 Aug 2014 17:32:57 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse Message-ID: <20140829003257.GF17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-7-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1408084747-4540-7-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409272377 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8933 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- > index 96c898e..758c07d 100644 > --- a/fs/xfs/xfs_trans_buf.c > +++ b/fs/xfs/xfs_trans_buf.c > @@ -324,11 +324,13 @@ xfs_trans_read_buf_map( > */ > if (XFS_FORCED_SHUTDOWN(mp)) { > trace_xfs_bdstrat_shut(bp, _RET_IP_); > - xfs_bioerror_relse(bp); > - } else { > - xfs_buf_iorequest(bp); > + bp->b_flags &= ~(XBF_READ | XBF_DONE); > + xfs_buf_ioerror(bp, -EIO); > + xfs_buf_stale(bp); > + return -EIO; > } This is a large change of behavior as it doesn't hit the error path after the xfs_buf_iowait anymore. While I don't think that that path was entirely correct this version seems to be even less so by not releasing the buffer reference or forcing the shutdown. From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:37:57 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 40C1E7F5E for ; Thu, 28 Aug 2014 19:37:57 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 17EE9304048 for ; Thu, 28 Aug 2014 17:37:57 -0700 (PDT) X-ASG-Debug-ID: 1409272676-04bdf010a15e01e0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id 19htLgakKYEbPmuL (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:37:56 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNACS-0007jY-2p; Fri, 29 Aug 2014 00:37:56 +0000 Date: Thu, 28 Aug 2014 17:37:56 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly Message-ID: <20140829003756.GG17502@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 9/9] xfs: check xfs_buf_read_uncached returns correctly References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-10-git-send-email-david@fromorbit.com> <20140815125608.GA27856@infradead.org> <20140815235843.GA26465@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140815235843.GA26465@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409272676 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Sat, Aug 16, 2014 at 09:58:43AM +1000, Dave Chinner wrote: > > I'd rather get rid of these annoying calling conventions. Make it > > return and errno, and the bp in a pointer argument, with the bp > > never non-NULL in case of error. > > Ok. I considered that, then just did the simple thing. There's only about a dozen callers of all xfs_buf_read* variants, so I think switching them over to return an errno shouldn't be much of a problem. From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:39:12 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id AC9B37F62 for ; Thu, 28 Aug 2014 19:39:12 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id 859EF8F8052 for ; Thu, 28 Aug 2014 17:39:12 -0700 (PDT) X-ASG-Debug-ID: 1409272751-04bdf0109a5e02c0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id JE82EkG4VBSpUL3r (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:39:11 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNADf-00089l-8N; Fri, 29 Aug 2014 00:39:11 +0000 Date: Thu, 28 Aug 2014 17:39:11 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF Message-ID: <20140829003911.GA30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-2-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-2-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409272751 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Not sure if my 10 cents are worth anything given that I haven't spent much time with this code recently, but I feel very uneasy diverging from the generic path in this area. From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:39:35 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id D22687F62 for ; Thu, 28 Aug 2014 19:39:35 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 6A4C4AC001 for ; Thu, 28 Aug 2014 17:39:35 -0700 (PDT) X-ASG-Debug-ID: 1409272774-04bdf010a05e0310001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id OrD8m00d5PGvERlp (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:39:34 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAE2-0008F0-L2; Fri, 29 Aug 2014 00:39:34 +0000 Date: Thu, 28 Aug 2014 17:39:34 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/7] xfs: don't zero partial page cache pages during O_DIRECT writes Message-ID: <20140829003934.GB30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/7] xfs: don't zero partial page cache pages during O_DIRECT writes References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-3-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-3-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409272774 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 09:49:06PM +1000, Dave Chinner wrote: > From: Chris Mason > > xfs is using truncate_pagecache_range to invalidate the page cache > during DIO reads. This is different from the other filesystems who > only invalidate pages during DIO writes. > > truncate_pagecache_range is meant to be used when we are freeing the > underlying data structs from disk, so it will zero any partial > ranges in the page. This means a DIO read can zero out part of the > page cache page, and it is possible the page will stay in cache. > > buffered reads will find an up to date page with zeros instead of > the data actually on disk. > > This patch fixes things by using invalidate_inode_pages2_range > instead. It preserves the page cache invalidation, but won't zero > any pages. > > [dchinner: catch error and warn if it fails. Comment.] Looks good, Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:39:53 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B42BF7F62 for ; Thu, 28 Aug 2014 19:39:53 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 422B9AC003 for ; Thu, 28 Aug 2014 17:39:53 -0700 (PDT) X-ASG-Debug-ID: 1409272791-04cbb054888d8010001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id KcnnbWyS12kceJiQ (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:39:52 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAEJ-0000V0-M9; Fri, 29 Aug 2014 00:39:51 +0000 Date: Thu, 28 Aug 2014 17:39:51 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 3/7] xfs: don't zero partial page cache pages during O_DIRECT writes Message-ID: <20140829003951.GC30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 3/7] xfs: don't zero partial page cache pages during O_DIRECT writes References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-4-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-4-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409272792 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Aug 28, 2014 at 09:49:07PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Similar to direct IO reads, direct IO writes are using > truncate_pagecache_range to invalidate the page cache. This is > incorrect due to the sub-block zeroing in the page cache that > truncate_pagecache_range() triggers. > > This patch fixes things by using invalidate_inode_pages2_range > instead. It preserves the page cache invalidation, but won't zero > any pages. Looks good, Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:40:49 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 607577F67 for ; Thu, 28 Aug 2014 19:40:49 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3B0EA8F8052 for ; Thu, 28 Aug 2014 17:40:49 -0700 (PDT) X-ASG-Debug-ID: 1409272847-04cbb054878d80b0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id nDfj01uZlvXAuWa6 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:40:48 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAFD-0004Hs-Td; Fri, 29 Aug 2014 00:40:47 +0000 Date: Thu, 28 Aug 2014 17:40:47 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 4/7] xfs: use ranged writeback and invalidation for direct IO Message-ID: <20140829004047.GD30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 4/7] xfs: use ranged writeback and invalidation for direct IO References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-5-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-5-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409272848 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Thu, Aug 28, 2014 at 09:49:08PM +1000, Dave Chinner wrote: > From: Dave Chinner > > Now we are not doing silly things with dirtying buffers beyond EOF > and using invalidation correctly, we can finally reduce the ranges of > writeback and invalidation used by direct IO to match that of the IO > being issued. > > Bring the writeback and invalidation ranges back to match the > generic direct IO code - this will greatly reduce the perturbation > of cached data when direct IO and buffered IO are mixed, but still > provide the same buffered vs direct IO coherency behaviour we > currently have. > > Signed-off-by: Dave Chinner Looks correct, although I wonder if it's really worth the risk exposing us to the crazy details of the page cache invalidation range notations.. Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:41:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 4FB417F67 for ; Thu, 28 Aug 2014 19:41:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 3927C304053 for ; Thu, 28 Aug 2014 17:41:11 -0700 (PDT) X-ASG-Debug-ID: 1409272870-04cbb054878d80f0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id tLw4HzH8rdSY87WB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:41:10 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAFa-0004JD-1m; Fri, 29 Aug 2014 00:41:10 +0000 Date: Thu, 28 Aug 2014 17:41:10 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/7] xfs: don't log inode unless extent shift makes extent modifications Message-ID: <20140829004110.GE30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 5/7] xfs: don't log inode unless extent shift makes extent modifications References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-6-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-6-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409272870 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8934 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS Looks good, Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:41:56 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id C67157F56 for ; Thu, 28 Aug 2014 19:41:56 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 54525AC001 for ; Thu, 28 Aug 2014 17:41:56 -0700 (PDT) X-ASG-Debug-ID: 1409272914-04cb6c550064d560001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id OVP8nbAik55zkryp (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:41:55 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAGI-0004R3-Kz; Fri, 29 Aug 2014 00:41:54 +0000 Date: Thu, 28 Aug 2014 17:41:54 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 6/7] xfs: xfs_file_collapse_range is delalloc challenged Message-ID: <20140829004154.GF30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 6/7] xfs: xfs_file_collapse_range is delalloc challenged References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-7-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-7-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409272915 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8933 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 09:49:10PM +1000, Dave Chinner wrote: > From: Dave Chinner > > If we have delalloc extents on a file before we run a collapse range > opertaion, we sync the range that we are going to collapse to > convert delalloc extents in that region to real extents to simplify > the shift operation. > > However, the shift operation then assumes that the extent list is > not going to change as it iterates over the extent list moving > things about. Unfortunately, this isn't true because we can't hold > the ILOCK over all the operations. We can prevent new IO from > modifying the extent list by holding the IOLOCK, but that doesn't > prevent writeback from running.... > > And when writeback runs, it can convert delalloc extents is the > range of the file prior to the region being collapsed, and this > changes the indexes of all the extents in the file. That causes the > collapse range operation to Go Bad. > > The right fix is to rewrite the extent shift operation not to be > dependent on the extent list not changing across the entire > operation, but this is a fairly significant piece of work to do. > Hence, as a short-term workaround for the problem, sync the entire > file before starting a collapse operation to remove all delalloc > ranges from the file and so avoid the problem of concurrent > writeback changing the extent list. > > Diagnosed-and-Reported-by: Brian Foster > Signed-off-by: Dave Chinner > Reviewed-by: Brian Foster Looks good, Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:42:28 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E56227F78 for ; Thu, 28 Aug 2014 19:42:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 81D43AC001 for ; Thu, 28 Aug 2014 17:42:27 -0700 (PDT) X-ASG-Debug-ID: 1409272946-04cb6c54ff64d5a0001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id EBG7zj98wyTtRCJl (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:42:26 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAGo-0004V9-4Q; Fri, 29 Aug 2014 00:42:26 +0000 Date: Thu, 28 Aug 2014 17:42:26 -0700 From: Christoph Hellwig To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 7/7] xfs: trim eofblocks before collapse range Message-ID: <20140829004226.GG30463@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 7/7] xfs: trim eofblocks before collapse range References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-8-git-send-email-david@fromorbit.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1409226551-16570-8-git-send-email-david@fromorbit.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409272946 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8933 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good, Reviewed-by: Christoph Hellwig From david@fromorbit.com Thu Aug 28 19:46:13 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 8D92E7F63 for ; Thu, 28 Aug 2014 19:46:13 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 65B848F8050 for ; Thu, 28 Aug 2014 17:46:13 -0700 (PDT) X-ASG-Debug-ID: 1409273170-04cb6c54fe64d800001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id cMomh2OQwJJOPnRu for ; Thu, 28 Aug 2014 17:46:10 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjYaAKnM/1N5LDJ8PGdsb2JhbABbgw1TV4IshQenTgYGmFSBZYVyAYEVFwUBAQEBODaEAwEBBAEnExwjBQsIAxgJJQ8FJQMHGhOIOge/bhcYhWSJUAeETAWVXYZ8iy5vjHErL4EIJIEjAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 10:16:09 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNAKN-0002Ff-Dh; Fri, 29 Aug 2014 10:46:07 +1000 Date: Fri, 29 Aug 2014 10:46:07 +1000 From: Dave Chinner To: Iustin Pop Cc: Iustin Pop , xfs@oss.sgi.com, hch@infradead.org Subject: Re: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories Message-ID: <20140829004607.GX20518@dastard> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix behaviour of XFS_IOC_FSSETXATTR on directories References: <20140718191314.GB27801@teal.hq.k1024.org> <1409199773-16802-1-git-send-email-iusty@k1024.org> <20140828093158.GR20518@dastard> <20140828223414.GC29940@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140828223414.GC29940@google.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409273170 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8933 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 03:34:14PM -0700, Iustin Pop wrote: > On Don, Aug 28, 2014 at 07:31:58 +1000, Dave Chinner wrote: > > On Wed, Aug 27, 2014 at 09:22:53PM -0700, Iustin Pop wrote: > > > Currently, the ioctl handling code for XFS_IOC_FSSETXATTR treats all > > > targets as regular files: it refuses to change the extent size if > > > extents are allocated. This is wrong for directories, as there the > > > extent size is only used as a default for children. > > > > > > The patch fixes this by only checking for allocated extents for regular > > > files; it leaves undefined what it means to set an extent size on a > > > non-regular, non-directory inode. Additionally, when setting a non-zero > > > extent size, the appropriate flags (EXTSIZE, respectively EXTSZINHERIT) > > > are enforced for regular files and directories. > > > > > > Signed-off-by: Iustin Pop > > > --- > > > A patch against xfstests to test for the fixed behaviour will follow > > > shortly. > > > > > > fs/xfs/xfs_ioctl.c | 34 ++++++++++++++++++++++++++-------- > > > 1 file changed, 26 insertions(+), 8 deletions(-) > > > > > > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > > > index 8bc1bbc..5b9acd2 100644 > > > --- a/fs/xfs/xfs_ioctl.c > > > +++ b/fs/xfs/xfs_ioctl.c > > > @@ -1116,14 +1116,32 @@ xfs_ioctl_setattr( > > > } > > > > > > if (mask & FSX_EXTSIZE) { > > > - /* > > > - * Can't change extent size if any extents are allocated. > > > - */ > > > - if (ip->i_d.di_nextents && > > > - ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != > > > - fa->fsx_extsize)) { > > > - code = XFS_ERROR(EINVAL); /* EFBIG? */ > > > - goto error_return; > > > > Doesn't apply to a current 3.17-rc1 tree. Can you update the patch? > > Will do, thanks. Is it correct to use git://oss.sgi.com/xfs/xfs, master > branch as what I should rebase it on top of? I'm moving off oss.sgi.com. I'll keep the trees up to date for a while, but the master kernel tree I'm using now is: git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs.git master > > > + if (S_ISDIR(ip->i_d.di_mode)) { > > > + /* > > > + * Enforce setting the EXTSZINHERIT flag when > > > + * a non-zero extent size has been specified. > > > + */ > > > + if (fa->fsx_extsize) { > > > + fa->fsx_xflags |= XFS_XFLAG_EXTSZINHERIT; > > > + } > > > + } else if (S_ISREG(ip->i_d.di_mode)) { > > > + /* > > > + * For a regular file, we can't change extent > > > + * size if any extents are allocated. > > > + */ > > > + if (ip->i_d.di_nextents && > > > + ((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != > > > + fa->fsx_extsize)) { > > > + code = XFS_ERROR(EINVAL); /* EFBIG? */ > > > + goto error_return; > > > + } > > > + /* > > > + * Enforce setting the EXTSIZE flag when > > > + * a non-zero extent size has been specified. > > > + */ > > > + if (fa->fsx_extsize) { > > > + fa->fsx_xflags |= XFS_XFLAG_EXTSIZE; > > > + } > > > } > > > > Hmmmm. That's not validating/enforcing the correct use of > > XFS_XFLAG_EXTSIZE or XFS_XFLAG_EXTSZINHERIT, that's setting it > > implicitly based on the type of inode. > > > > If we are going to enforce this properly, then XFS_XFLAG_EXTSIZE is > > only valid for a regular file, and XFS_XFLAG_EXTSZINHERIT is only > > valid on a directory, and the flags on th einode should only be set > > if the hint is not zero. i.e: > > > > if (mask & FSX_EXTSIZE) { > > error = -EINVAL; > > > > /* validate the flags are set appropriately */ > > if ((fa->fsx_xflags & XFS_XFLAG_EXTSIZE) && > > !S_ISREG(ip->i_d.di_mode)) > > goto error_return; > > if ((fa->fsx_xflags & XFS_XFLAG_EXTSZINHERIT) && > > !S_ISDIR(ip->i_d.di_mode)) > > goto error_return; > > This only prevents invalid flags, but doesn't prevent setting a non-zero > extent_size without the appropriate flag. We already are having this > discussion in the other patch, so I'll defer this to that. So take the previous code I cleared the flags on extsize == 0, and do this: - if (mask & FSX_EXTSIZE) + if (fa->fsx_flags & (XFS_XFLAG_EXTSIZE | XFS_XFLAG_EXTSZINHERIT)) { ip->i_d.di_extsize = fa->fsx_extsize >> mp->m_sb.sb_blocklog; + if (ip->i_d.di_extsize == 0) + fa->fsx_flags &= ~(XFS_XFLAG_EXTSIZE | XFS_XFLAG_EXTSZINHERIT); + } The way that mask gets used is just nasty, IMO. We could clean that code up a lot with a bit of factoring. > But aside from that, the current code that actually applies the flag > changes (xfs_set_diflags) implicitly drops invalid flags - that's why I > didn't bother to validate the flags here. Which points out that the flag validation code is broken, yes? > If we want to do validation, > maybe we should validate (with error, not silently) in that function, > instead of here? No. We need to have a clear separation of user input validation from the modification of the inode state, because if we abort modification during a transaction due to a validation failure after modifying the inode, then we have to abort the dirty transaction and that will cause a filesystem shutdown. Which would then be called a "user level DOS" and hence we must maintain the separation of validation from modification that we already have... Cheers, Dave. -- Dave Chinner david@fromorbit.com From xfactor973@gmail.com Thu Aug 28 19:51:18 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.3 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,T_DKIM_INVALID autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6997E7F58 for ; Thu, 28 Aug 2014 19:51:18 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id D8D61AC001 for ; Thu, 28 Aug 2014 17:51:17 -0700 (PDT) X-ASG-Debug-ID: 1409273475-04cb6c54ff64db10001-NocioJ Received: from mail-ie0-f172.google.com (mail-ie0-f172.google.com [209.85.223.172]) by cuda.sgi.com with ESMTP id fX4f9qoqsTAxjJm8 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 28 Aug 2014 17:51:15 -0700 (PDT) X-Barracuda-Envelope-From: xfactor973@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.223.172 X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.172] Received: by mail-ie0-f172.google.com with SMTP id rd18so1958166iec.3 for ; Thu, 28 Aug 2014 17:51:15 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.172] X-Barracuda-IPDD: Level1 [gmail.com/209.85.223.172] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=rj+9OpmMwU74fJCMnalyNjNXrQtgmYFt2HUJYWQ+zeU=; b=DpHKBF1eD0op9UbPNjc2HNIf+vYwL/gptPtKfXUsbcoQ5j7vLoCmSarWoHbhJhzmXv Rz/wPV6J1LhO7IIJz8LkdCRqJ/dENmfK94InqYOParAYSHhpXWdtZ+KmvYZgSLzuq/jO Lw9s3hD3gl07UkDE7k0HhcbJ3C8p6KfKRtfPbtfLUGCjKjXNffNKkDR5I+5/MGwFs4TI u3x4J/OrLRCan4FR7wncHC1wrxHOV7l9qu20yEYC+pLb+VDR+LRm0HVfjvrPw0Q5v7uL T5KB1cgdbgwawyu6lGSTEvTS3Mi7cP5kZy/0k2nJ+ceH572iM1qDqmIK59ujuFgS+5lQ SRAA== MIME-Version: 1.0 X-Received: by 10.50.25.105 with SMTP id b9mr504194igg.46.1409273475153; Thu, 28 Aug 2014 17:51:15 -0700 (PDT) Received: by 10.50.132.41 with HTTP; Thu, 28 Aug 2014 17:51:15 -0700 (PDT) In-Reply-To: <20140828232915.GV20518@dastard> References: <20140828232915.GV20518@dastard> Date: Thu, 28 Aug 2014 17:51:15 -0700 Message-ID: Subject: Re: Find hardlinks to a file From: Chris Holcombe X-ASG-Orig-Subj: Re: Find hardlinks to a file To: xfs@oss.sgi.com Content-Type: text/plain; charset=UTF-8 X-Barracuda-Connect: mail-ie0-f172.google.com[209.85.223.172] X-Barracuda-Start-Time: 1409273475 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature So let me ask you this. Is it possible to transform an inode number into a path name with xfs? That's basically the crux of my problem. On Thu, Aug 28, 2014 at 4:29 PM, Dave Chinner wrote: > On Thu, Aug 28, 2014 at 04:14:25PM -0700, Chris Holcombe wrote: >> My apologies if this has already been asked. I feel that I've done a >> sufficient amount of Google search homework. I'm working with Gluster >> (http://www.gluster.org/) and they have a directory called xattrop >> where they store links to files that need to be healed. When I stat >> the file I can see that there's 2 or 3 hard links to the file. I >> can't seem to find a way in code or with an xfs_* utility to find the >> path of those hard links. Does anyone know how to do this or if it's >> even possible? From looking through the XFS documentation I don't >> really see a way to do it without a find /mount_point -num >> brute force method. btrfs has a utility called: >> >> btrfs inspect-internal inode-resolve [-v] >> Resolves an in subvolume to all filesystem >> paths. >> >> I'd like to build an equivalent tool in C for XFS if it's possible. > > You need help from the filesystem, both in terms of the on-disk > format and the kernel code needed to push that information back out > to userspace. Indeed, this is the functionality we need for reverse > inode->path lookups: > > http://thread.gmane.org/gmane.comp.file-systems.xfs.general/27772 > > (parent pointers, for those that don't want to follow the link) > > Right now it's state is in limbo. We have a more recent design, > but since SGI has dropped off the edge of the world, nobody is > working on it. > > It's on my radar along with reverse mapping btrees for filesystem > block to inode lookups so that we can do all of this sort of stuff > easily without needing to walk the entire filesystem to find the > forward pointers to objects.... > > Cheers, > > Dave. > -- > Dave Chinner > david@fromorbit.com From david@fromorbit.com Thu Aug 28 19:54:03 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 510F97F72 for ; Thu, 28 Aug 2014 19:54:03 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3CF848F8050 for ; Thu, 28 Aug 2014 17:54:02 -0700 (PDT) X-ASG-Debug-ID: 1409273640-04cbb054878d8860001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id KaRu6ETHyXM7vv2M for ; Thu, 28 Aug 2014 17:54:01 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisaAAXO/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTgYGmjmFcgGBFRcFAQEBATg2hAQBBTocIxAIAw4KCSUPBSUDBxoTiEG/cRcYhWSJUAeETAWcWYsua4x1Ky+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 10:23:59 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNARy-0002Go-Gf; Fri, 29 Aug 2014 10:53:58 +1000 Date: Fri, 29 Aug 2014 10:53:58 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF Message-ID: <20140829005358.GY20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 1/7] xfs: don't dirty buffers beyond EOF References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-2-git-send-email-david@fromorbit.com> <20140829003911.GA30463@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140829003911.GA30463@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409273640 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 05:39:11PM -0700, Christoph Hellwig wrote: > Not sure if my 10 cents are worth anything given that I haven't spent > much time with this code recently, but I feel very uneasy diverging > from the generic path in this area. I can't see how we have any other choice right now. We're caught between a rock and a hard place - XFS uses bufferheads differently to all other filesystems (esp. w.r.t. to EOF block zeroing behaviour), and so changing behaviour in the generic code to suit XFS is likely to introduce subtle data corruption bugs in other filesystems. I think the best thing we can do is move away from bufferheads in XFS. We've already got lots of hacky code to manage bufferhead/extent state coherency and so the sooner we get rid of bufferheads the sooner that crap goes away, too. Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 28 19:56:10 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 13B237F72 for ; Thu, 28 Aug 2014 19:56:10 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 9C456AC003 for ; Thu, 28 Aug 2014 17:56:09 -0700 (PDT) X-ASG-Debug-ID: 1409273767-04bdf0109a5e0ce0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id fIAsr235xm3U2t2K for ; Thu, 28 Aug 2014 17:56:07 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisaADPP/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTgYGmjmFcgGBFRcFAQEBATg2hAQBBScTHCMQCAMOCgklDwUlAwcaE4hBv3EXGIVkiVAHhEwBBJxZiy5vixmBWCsvgk8BAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 10:25:44 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNATf-0002H8-GF; Fri, 29 Aug 2014 10:55:43 +1000 Date: Fri, 29 Aug 2014 10:55:43 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality Message-ID: <20140829005543.GZ20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 2/9] xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-3-git-send-email-david@fromorbit.com> <20140829002209.GB17502@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140829002209.GB17502@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409273767 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 05:22:09PM -0700, Christoph Hellwig wrote: > > STATIC void > > needs the static removed as pointed out by Brian. > > - bool read = !!(bp->b_flags & XBF_READ); > > + bool read = !!(bp->b_flags & XBF_READ); > > We don't really need the double negation here. Good point. I'll fix it. -- Dave Chinner david@fromorbit.com From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 19:59:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D44EE7F72 for ; Thu, 28 Aug 2014 19:59:26 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 9AB0C304051 for ; Thu, 28 Aug 2014 17:59:26 -0700 (PDT) X-ASG-Debug-ID: 1409273965-04bdf010a05e0f50001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id LSGWICRT8sq8Lv0b (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 17:59:25 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAXD-0006va-M7; Fri, 29 Aug 2014 00:59:23 +0000 Date: Thu, 28 Aug 2014 17:59:23 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH 1/4] xfs: check resblks before calling xfs_dir_canenter Message-ID: <20140829005923.GA26340@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 1/4] xfs: check resblks before calling xfs_dir_canenter References: <53F6942B.80808@redhat.com> <53F694F9.9030406@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F694F9.9030406@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409273965 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Looks good (although not useful on it's own, but there's more followups) Reviewed-by: Christoph Hellwig From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Thu Aug 28 20:00:59 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B98D67F83 for ; Thu, 28 Aug 2014 20:00:59 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 985AE8F8052 for ; Thu, 28 Aug 2014 18:00:59 -0700 (PDT) X-ASG-Debug-ID: 1409274057-04cb6c54fd64e260001-NocioJ Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) by cuda.sgi.com with ESMTP id dP8TOj1y2NspKSvB (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 28 Aug 2014 18:00:57 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNAYi-000865-1i; Fri, 29 Aug 2014 01:00:56 +0000 Date: Thu, 28 Aug 2014 18:00:56 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: Eric Sandeen , xfs-oss Subject: Re: [PATCH 2/4] xfs: combine xfs_dir_canenter into xfs_dir_createname Message-ID: <20140829010056.GB26340@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 2/4] xfs: combine xfs_dir_canenter into xfs_dir_createname References: <53F6942B.80808@redhat.com> <53F695C3.1020607@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53F695C3.1020607@sandeen.net> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: bombadil.infradead.org[198.137.202.9] X-Barracuda-Start-Time: 1409274057 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 21, 2014 at 07:58:43PM -0500, Eric Sandeen wrote: > xfs_dir_canenter and xfs_dir_createname are > almost identical. > > Fold the former into the latter, with a helpful > wrapper for the former. If createname is called without > an inode number, it now only checks for space, and does > not actually add the entry. > > Signed-off-by: Eric Sandeen The code changes looks good to me, but.. > /* > - Enter a name in a directory. > + * Enter a name in a directory. > + * If inum is 0, only test for available space. > */ > int > xfs_dir_createname( Given how confusing the xfs_dir_createname function name is now this probably needs a more detailed description mentioning the checking as first class behavior. From david@fromorbit.com Thu Aug 28 20:06:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id B258C7F85 for ; Thu, 28 Aug 2014 20:06:19 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4026EAC001 for ; Thu, 28 Aug 2014 18:06:15 -0700 (PDT) X-ASG-Debug-ID: 1409274373-04cbb054858d91b0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id sZa9qo7QLecd4Pce for ; Thu, 28 Aug 2014 18:06:13 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisaAIvR/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTgYGmjmFcgGBFRcFAQEBATg2hAQBBTocIxAIAw4KCSUPBSUDBxoTiEG/chcYhWSJUAeDL4EdAQSPG40+iy5vjHErL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 10:35:55 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNAdW-0002JE-49; Fri, 29 Aug 2014 11:05:54 +1000 Date: Fri, 29 Aug 2014 11:05:54 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 5/9] xfs: xfs_bioerror can die. Message-ID: <20140829010554.GA20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 5/9] xfs: xfs_bioerror can die. References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-6-git-send-email-david@fromorbit.com> <20140829002825.GE17502@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140829002825.GE17502@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409274373 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 05:28:25PM -0700, Christoph Hellwig wrote: > On Fri, Aug 15, 2014 at 04:39:03PM +1000, Dave Chinner wrote: > > Internal buffer write error handling is a mess due to the unnatural > > split between xfs_bioerror and xfs_bioerror_relse(). The buffer > > reference counting is also wrong for the xfs_bioerror path for > > xfs_bwrite - it uses sync IO and so xfs_buf_ioend will release a > > hold count that was never taken. > > Which seems to be cause by patch 1 in the series, and thus the > additional hold for the error case should be introduced there. will fix. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 28 20:12:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id F05977F86 for ; Thu, 28 Aug 2014 20:12:43 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id D07AF304051 for ; Thu, 28 Aug 2014 18:12:40 -0700 (PDT) X-ASG-Debug-ID: 1409274758-04cbb054868d95d0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id K6BLmZ5yXJ8Rqp28 for ; Thu, 28 Aug 2014 18:12:38 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AisaALnS/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTgYGmjmFcgGBFRcFAQEBATg2hAQBBScTHCMQCAMOCgklDwUlAwcaE4hBv3EXGIVkiVAHgy+BHQWcWYsub4xxKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 10:42:38 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNAk0-0002Jy-Ep; Fri, 29 Aug 2014 11:12:36 +1000 Date: Fri, 29 Aug 2014 11:12:36 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse Message-ID: <20140829011236.GB20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-7-git-send-email-david@fromorbit.com> <20140829003257.GF17502@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140829003257.GF17502@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409274758 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 05:32:57PM -0700, Christoph Hellwig wrote: > > index 96c898e..758c07d 100644 > > --- a/fs/xfs/xfs_trans_buf.c > > +++ b/fs/xfs/xfs_trans_buf.c > > @@ -324,11 +324,13 @@ xfs_trans_read_buf_map( > > */ > > if (XFS_FORCED_SHUTDOWN(mp)) { > > trace_xfs_bdstrat_shut(bp, _RET_IP_); > > - xfs_bioerror_relse(bp); > > - } else { > > - xfs_buf_iorequest(bp); > > + bp->b_flags &= ~(XBF_READ | XBF_DONE); > > + xfs_buf_ioerror(bp, -EIO); > > + xfs_buf_stale(bp); > > + return -EIO; > > } > > This is a large change of behavior as it doesn't hit the error > path after the xfs_buf_iowait anymore. While I don't think that > that path was entirely correct this version seems to be even less so > by not releasing the buffer reference or forcing the shutdown. The IO is synchronous, so the previous behaviour did not release the buffer here. But, yes, it needs to because we're not running the io wait on it anymore. And this happens only during a shutdown, so i don't see any need to trigger a shutdown ;) As it is, I think this gets properly fixed by the next patch.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Thu Aug 28 20:16:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BB9A07F89 for ; Thu, 28 Aug 2014 20:16:07 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 4D71AAC002 for ; Thu, 28 Aug 2014 18:16:07 -0700 (PDT) X-ASG-Debug-ID: 1409274965-04bdf010a15e1a80001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id NEZpbdoHmnFD1fcD for ; Thu, 28 Aug 2014 18:16:05 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AjAaAODT/1N5LDJ8PGdsb2JhbABbgw2BKoIshQenTgYGmjmFaQkBgRUXBQEBAQE4NoQEAQU6HCMQCAMOCgklDwUlAwcaE4hBv24XGIVkiVAHgy+BHQWcWYsujWArL4JPAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 10:45:54 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNAnB-0002Km-5c; Fri, 29 Aug 2014 11:15:53 +1000 Date: Fri, 29 Aug 2014 11:15:53 +1000 From: Dave Chinner To: Chris Holcombe Cc: xfs@oss.sgi.com Subject: Re: Find hardlinks to a file Message-ID: <20140829011553.GC20518@dastard> X-ASG-Orig-Subj: Re: Find hardlinks to a file References: <20140828232915.GV20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409274965 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8935 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 05:51:15PM -0700, Chris Holcombe wrote: > So let me ask you this. Is it possible to transform an inode number > into a path name with xfs? That's basically the crux of my problem. $ man xfs_ncheck -- Dave Chinner david@fromorbit.com From sandeen@sandeen.net Thu Aug 28 21:14:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_FILL_THIS_FORM_SHORT autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 363967F75 for ; Thu, 28 Aug 2014 21:14:09 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id B915CAC001 for ; Thu, 28 Aug 2014 19:14:05 -0700 (PDT) X-ASG-Debug-ID: 1409278443-04cb6c54fd651a60001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id 9ar4Xyy7Ax3xgxug for ; Thu, 28 Aug 2014 19:14:03 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id B994C6370CE2; Thu, 28 Aug 2014 21:14:02 -0500 (CDT) Message-ID: <53FFE1EC.9010102@sandeen.net> Date: Thu, 28 Aug 2014 21:14:04 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Eric Sandeen , xfs-oss Subject: [PATCH 2/4 V2] xfs: combine xfs_dir_canenter into xfs_dir_createname References: <53F6942B.80808@redhat.com> <53F695C3.1020607@sandeen.net> X-ASG-Orig-Subj: [PATCH 2/4 V2] xfs: combine xfs_dir_canenter into xfs_dir_createname In-Reply-To: <53F695C3.1020607@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1409278443 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8936 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- xfs_dir_canenter and xfs_dir_createname are almost identical. Fold the former into the latter, with a helpful wrapper for the former. If createname is called without an inode number, it now only checks for space, and does not actually add the entry. Signed-off-by: Eric Sandeen --- V2: slightly more verbose comment diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c index ea84e1c..fdd391f 100644 --- a/fs/xfs/libxfs/xfs_dir2.c +++ b/fs/xfs/libxfs/xfs_dir2.c @@ -237,7 +237,8 @@ xfs_dir_init( } /* - Enter a name in a directory. + * Enter a name in a directory, or check for available space. + * If inum is 0, only the available space test is performed. */ int xfs_dir_createname( @@ -254,10 +255,12 @@ xfs_dir_createname( int v; /* type-checking value */ ASSERT(S_ISDIR(dp->i_d.di_mode)); - rval = xfs_dir_ino_validate(tp->t_mountp, inum); - if (rval) - return rval; - XFS_STATS_INC(xs_dir_create); + if (inum) { + rval = xfs_dir_ino_validate(tp->t_mountp, inum); + if (rval) + return rval; + XFS_STATS_INC(xs_dir_create); + } args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); if (!args) @@ -276,6 +279,8 @@ xfs_dir_createname( args->whichfork = XFS_DATA_FORK; args->trans = tp; args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT; + if (!inum) + args->op_flags |= XFS_DA_OP_JUSTCHECK; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { rval = xfs_dir2_sf_addname(args); @@ -542,50 +547,7 @@ xfs_dir_canenter( xfs_inode_t *dp, struct xfs_name *name) /* name of entry to add */ { - struct xfs_da_args *args; - int rval; - int v; /* type-checking value */ - - ASSERT(S_ISDIR(dp->i_d.di_mode)); - - args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS); - if (!args) - return -ENOMEM; - - args->geo = dp->i_mount->m_dir_geo; - args->name = name->name; - args->namelen = name->len; - args->filetype = name->type; - args->hashval = dp->i_mount->m_dirnameops->hashname(name); - args->dp = dp; - args->whichfork = XFS_DATA_FORK; - args->trans = tp; - args->op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME | - XFS_DA_OP_OKNOENT; - - if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) { - rval = xfs_dir2_sf_addname(args); - goto out_free; - } - - rval = xfs_dir2_isblock(args, &v); - if (rval) - goto out_free; - if (v) { - rval = xfs_dir2_block_addname(args); - goto out_free; - } - - rval = xfs_dir2_isleaf(args, &v); - if (rval) - goto out_free; - if (v) - rval = xfs_dir2_leaf_addname(args); - else - rval = xfs_dir2_node_addname(args); -out_free: - kmem_free(args); - return rval; + return xfs_dir_createname(tp, dp, name, 0, NULL, NULL, 0); } /* From david@fromorbit.com Thu Aug 28 21:52:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id BF8C77F8A for ; Thu, 28 Aug 2014 21:52:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 41517AC003 for ; Thu, 28 Aug 2014 19:52:25 -0700 (PDT) X-ASG-Debug-ID: 1409280742-04cbb054858ddcc0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id g30tn8DzycbK7qdZ for ; Thu, 28 Aug 2014 19:52:23 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Aj0aADPq/1N5LDJ8PGdsb2JhbABbgw1TV4IsUIQ3p04GBphUgWWFcgGBFRcFAQEBATg2hAMBAQQBIw8BIyMFCwgDGAICBSECAg8FJQMHGhOIOgemFJQ3FxiBFIRQhAOEaxEBUAeCeYFTBYUEApBXhnyBXIlSb4xxKy+BCAcXBoEjAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 12:22:21 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNCIU-0002Vd-SY; Fri, 29 Aug 2014 12:52:18 +1000 Date: Fri, 29 Aug 2014 12:52:18 +1000 From: Dave Chinner To: Iustin Pop Cc: Iustin Pop , xfs@oss.sgi.com, hch@infradead.org, fstests@vger.kernel.org Subject: Re: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour Message-ID: <20140829025218.GG26465@dastard> X-ASG-Orig-Subj: Re: [PATCH xfstests] xfs: add tests for XFS_IOC_FSSETXATTR behaviour References: <20140718191314.GB27801@teal.hq.k1024.org> <1409199840-16907-1-git-send-email-iusty@k1024.org> <20140828101628.GS20518@dastard> <20140828222854.GB29940@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20140828222854.GB29940@google.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409280742 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8938 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Thu, Aug 28, 2014 at 03:28:54PM -0700, Iustin Pop wrote: > On Don, Aug 28, 2014 at 08:16:28 +1000, Dave Chinner wrote: > > [cc fstests@vger.kernel.org] > > > > On Wed, Aug 27, 2014 at 09:24:00PM -0700, Iustin Pop wrote: > > > Add two tests that check for correct behaviour of XFS_IOC_FSSETXATTR: > > > > > > - 307: check that extent size can always be set on a directory > > > - 308: check that setting a non-zero extent size directly via the ioctl > > > sets the expected flags (EXTSIZE and EXTSZINHERIT) > > > > > > Signed-off-by: Iustin Pop > > > > Minor stuff first: > > > > - xfstests patches should be sent to fstests@vger.kernel.org now. > > OK, will do. There was nothing written in the git repository's README, > hence I chose what I thought best. Documentation always needs updating, and stuff is in the process of being moved around. > > > +# Copyright (c) 2014 Google Inc. All Rights Reserved. > > > > Is that correct? It doesn't match the email address you sent this > > from and I've never seen you post from a @google.com address. I > > always like to check that the copyright assignment is correct in > > situations like this... > > It is correct indeed (and thanks for double-checking). I prefer to send > my interactions/contributions done not as part of my job using my > personal address (hence I always wrote to xfs@ from the same address), > but even in that case, the copyright remains with my employer. > > Just as a confirmation, sending this email from my @google.com address. Thanks, I'll know in future ;) > > > +# now create a 'big' (with extents) directory > > > +mkdir $big > > > +idx=1 > > > +while xfs_bmap $big | grep -q "no extents"; do > > > + touch $big/$idx > > > + idx=$((idx+1)) > > > + if [ "$idx" -gt 1048576 ]; then > > > + # still no extents? giving up > > > + echo "Can't make a directory to have extents even after 1M files" 1>&2 > > > + exit > > > + fi > > > +done > > > > urk. largest inode size is 2kb, which means at most it can fit less > > than 100 dirents in the inode before spilling to extent form. So > > just do a loop that creates 1000 files - there's no need to > > overengineer the test code. > > Will do. It's fine to still check that the directory does have extents, > I hope? $XFS_IO_PROG -c 'bmap -vp' $big | _filter_bmap > > > +int main(int argc, char **argv) { > > > + struct fsxattr fa; > > > + int fd = open(argv[1], O_RDONLY); > > > + if (fd < 0) { > > > + perror("open"); > > > + return 1; > > > + } > > > + fa.fsx_xflags = 0; > > > + fa.fsx_extsize = 1048576 * 8; > > > + int r = xfsctl(argv[1], fd, XFS_IOC_FSSETXATTR, &fa); > > > > .... that code is quite broken. Yes, it would work to set the > > appropriate extent size flags with the kernel > > changes you made, but that's not how this ioctl works. > > > > i.e. it will cause any flag bits that are set on the inode to be > > cleared > > Good point… > > > and it's likely to fail on old kernels beacuse they have > > very different behaviour to what your patch does. > > OK, that I didn't know. (Would you mind quickly explaining?) The extsize hint on the inode is not used by the kernel code unless the XFS_XFLAG_EXTSIZE is also set. So existing kernels may set the inode extszhint field, but the code will ignore it because the flags didn't get set on the inode. See xfs_get_extsz_hint(). With your kernel changes, the above *invalid* code will result in the flags being set on the inode, and so there's a change of behaviour from "old kernel, does not trigger extsz behaviour" to "new kernel, extsz behaviour is invoked". > > We have xfs_io precisely so that we don't have to maintain random > > test code like this throughout xfstests - do it once, do it right, > > use it everywhere. > > I totally agree that xfs_io is what people should use, but I disagree on > the use of xfs_io in this particular test, let me explain why. > > With 3.16-rc1 at least, it is possible to set fsx_extsize to a non-zero > value, without setting the flags (if you call the ioctl directly). Such > an inode will be (unless I'm mistaken) flagged with a warning by > xfs_repair, which means that it's an invalid inode state. Yes, since this commit bd5683f ("xfs_repair: validate inode di_flags field") in 2011 repair will flag that the hint is non-zero but the correct flags are not set. Likewise it will warn if the wrong flags are set. You can get wrong flags set on the inode in many ways, but historically the kernel and repair utilities haven't cared. > So in my view, there's a kernel bug, in that it allows a user land > application to put an inode into a "wrong" state. This particular test > is designed to reproduce this kernel bug, so that the kernel fix can be > verified that is indeed a fix. Yes this is not what xfstests is for. If we fix an API bug, there's little value to testing forever that the API is fixed. What we are trying to cover is that when the parameters are set correctly that the behaviour is correct. If you want to do "is the API validating user input correctly" testing then that's what trinity is for. Dave Jones has long wanted to get better ioctl coverage for filesystem specific operations, so I'd suggest that this is the avenue for testing whether an API behaves correctly and catches all invalid input. Then we get to fix all the problems that trinity causes, just like the mm folk have been doing for the past couple of years... Cheers, Dave. -- Dave Chinner david@fromorbit.com From stefanrin@gmail.com Fri Aug 29 01:31:52 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C9C757F86 for ; Fri, 29 Aug 2014 01:31:52 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id A9A2D8F8052 for ; Thu, 28 Aug 2014 23:31:49 -0700 (PDT) X-ASG-Debug-ID: 1409293904-04bdf0109a5ee6e0001-NocioJ Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com [209.85.212.169]) by cuda.sgi.com with ESMTP id PX3LE8PFHmLIg5Uc (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Thu, 28 Aug 2014 23:31:45 -0700 (PDT) X-Barracuda-Envelope-From: stefanrin@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.212.169 X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.169] Received: by mail-wi0-f169.google.com with SMTP id n3so352085wiv.4 for ; Thu, 28 Aug 2014 23:31:44 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.169] X-Barracuda-IPDD: Level1 [gmail.com/209.85.212.169] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=2nPnr4Lc3CfvX/PPhO2BNqC1shQJo9R4pZrWNvd0LMg=; b=jaqHV7aYayPx9GaE+fdfSNBRxc4AjXeYoMR/LvyELTtLlwD2wuwTugUnun06dm7Bpd PK2j7l5+/6L2z4Eh369omKR/giNrA2D0JzubGrl34ITokSFXIMorJqpk+SAKajAYhsiR KlNnhJYsCJ7nRK4wyj3nW/T/8yNbaVZCxZ55Wfxo4BjbLcRV+0CAdzblE57omJyNU6Y0 MW1y6zLPVlB9LadjjD3j8T10CHPW7Maa0Urhilmjlxfi74/PfdDDoeNolEPxEGohxsS3 9aRQiX5CtuQbkaPiXxov3kzWiZQ8LYRzlAmxS7+43tYmGYWklc/LSPfK4n46BieXpnQz QkcQ== MIME-Version: 1.0 X-Received: by 10.194.122.6 with SMTP id lo6mr11167088wjb.17.1409293904003; Thu, 28 Aug 2014 23:31:44 -0700 (PDT) Received: by 10.194.80.161 with HTTP; Thu, 28 Aug 2014 23:31:43 -0700 (PDT) In-Reply-To: <20140827230732.GN20518@dastard> References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> <20140827230732.GN20518@dastard> Date: Fri, 29 Aug 2014 08:31:43 +0200 Message-ID: Subject: Re: mount options question From: Stefan Ring X-ASG-Orig-Subj: Re: mount options question To: Dave Chinner Cc: weber@zbfmail.de, Xfs Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-wi0-f169.google.com[209.85.212.169] X-Barracuda-Start-Time: 1409293904 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8943 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Thu, Aug 28, 2014 at 1:07 AM, Dave Chinner wrote: > On Wed, Aug 27, 2014 at 12:14:21PM +0200, Marko Weber|8000 wrote: >> >> sorry dave and all other, >> >> can you guys recommend me the most stable / best mount options for >> my new server with ssd=C2=B4s and XFS filesystem? >> >> at moment i would set: defaults,nobarrier,discard,logbsize=3D256k,noike= ep >> or is just "default" the best solution and xfs detect itself whats best. >> >> can you guide me a bit? >> >> as eleavtor i set elevator=3Dnoop >> >> i setup disks with linux softraid raid1. On top of the raid is LVM >> (for some data partations). >> >> >> would be nice to hear some tipps from you > > Unless you have specific requirements or have the knowledge to > understand how the different options affect behaviour, then just use > the defaults. Mostly agreed, but using "discard" would be a no-brainer for me. I suppose XFS does not automatically switch it on for non-rotational storage. From david@fromorbit.com Fri Aug 29 03:38:07 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 07ABF7F92 for ; Fri, 29 Aug 2014 03:38:07 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id DA9948F804B for ; Fri, 29 Aug 2014 01:38:03 -0700 (PDT) X-ASG-Debug-ID: 1409301476-04cb6c54fd6608c0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id ogKBOjKQPDx0eykm for ; Fri, 29 Aug 2014 01:37:57 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 29 Aug 2014 18:07:41 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNHgg-0003C8-Bm; Fri, 29 Aug 2014 18:37:38 +1000 Date: Fri, 29 Aug 2014 18:37:38 +1000 From: Dave Chinner To: Stefan Ring Cc: weber@zbfmail.de, Xfs Subject: Re: mount options question Message-ID: <20140829083738.GD20518@dastard> X-ASG-Orig-Subj: Re: mount options question References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> <20140827230732.GN20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409301476 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8946 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 29, 2014 at 08:31:43AM +0200, Stefan Ring wrote: > On Thu, Aug 28, 2014 at 1:07 AM, Dave Chinner wrote: > > On Wed, Aug 27, 2014 at 12:14:21PM +0200, Marko Weber|8000 wrote: > >> > >> sorry dave and all other, > >> > >> can you guys recommend me the most stable / best mount options for > >> my new server with ssd´s and XFS filesystem? > >> > >> at moment i would set: defaults,nobarrier,discard,logbsize=256k,noikeep > >> or is just "default" the best solution and xfs detect itself whats best. > >> > >> can you guide me a bit? > >> > >> as eleavtor i set elevator=noop > >> > >> i setup disks with linux softraid raid1. On top of the raid is LVM > >> (for some data partations). > >> > >> > >> would be nice to hear some tipps from you > > > > Unless you have specific requirements or have the knowledge to > > understand how the different options affect behaviour, then just use > > the defaults. > > Mostly agreed, but using "discard" would be a no-brainer for me. I > suppose XFS does not automatically switch it on for non-rotational > storage. Yup, you're not using your brain. :P mount -o discard *sucks* on so many levels it is not funny. I don't recommend that anybody *ever* use it, on XFS, ext4 or btrfs. Just use fstrim if you ever need to clean up a SSD. Cheers, Dave. -- Dave Chinner david@fromorbit.com From webmaster@dev102.magizz.com Fri Aug 29 03:39:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 119207F95 for ; Fri, 29 Aug 2014 03:39:20 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id E458F8F8050 for ; Fri, 29 Aug 2014 01:39:19 -0700 (PDT) X-ASG-Debug-ID: 1409301556-04cbb054868eb000001-NocioJ Received: from vps.magizz.com (vps.magizz.com [162.251.83.157]) by cuda.sgi.com with ESMTP id 5ExYHjRLo4DmfSjz (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 01:39:17 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dev102.magizz.com X-Barracuda-Apparent-Source-IP: 162.251.83.157 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dev102.magizz.com; s=default; h=Content-Type:Content-Transfer-Encoding:MIME-Version:List-Unsubscribe:Message-ID:Reply-To:From:Date:Subject:To; bh=/ghb0Pe4at666Uy2r6SBKlGrOhAhRojJ8HljdVVdRyI=; b=R2DD6QuDmcVQn4yuoNOfg4zHS3/dziUyLQvh2J+TZtlb5qXVQ9XT3E9xyPsVgSfGqgC3Hm99Vd1DLIZbWVcIrZLqqF6lkIuZrwJU+dIHfzetpbD/n2vRLty51zSn99GszdZqpq80s9N/6Z/5tKiXOqMGNGNlXaCcwjMvmiSPbaA=; Received: from dev102magizz by vps.magizz.com with local (Exim 4.82) (envelope-from ) id 1XNHiG-0001YZ-Fj for xfs@oss.sgi.com; Fri, 29 Aug 2014 12:39:16 +0400 To: xfs@oss.sgi.com Subject: Goodbye from our newsletter X-PHP-Script: dev102.magizz.com/mailz/index.php for 66.249.65.30 X-ASG-Orig-Subj: Goodbye from our newsletter Received: from crawl-66-249-65-30.googlebot.com [66.249.65.30] by dev102.magizz.com with HTTP; Fri, 29 Aug 2014 08:39:14 +0000 Date: Fri, 29 Aug 2014 08:39:16 +0000 From: Webmaster Reply-To: Webmaster Message-ID: X-Priority: 3 X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/) X-phpList-version: 3.0.7 X-MessageID: systemmessage X-ListMember: xfs@oss.sgi.com Precedence: bulk Bounces-To: webmaster@dev102.magizz.com List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vps.magizz.com X-AntiAbuse: Original Domain - oss.sgi.com X-AntiAbuse: Originator/Caller UID/GID - [503 514] / [47 12] X-AntiAbuse: Sender Address Domain - dev102.magizz.com X-Get-Message-Sender-Via: vps.magizz.com: authenticated_id: dev102magizz/from_h X-Barracuda-Connect: vps.magizz.com[162.251.83.157] X-Barracuda-Start-Time: 1409301557 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8946 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature Goodbye from our Newsletter, sorry to see you go. 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Thank you From samuel.granjeaud@inserm.fr Fri Aug 29 05:08:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id D099B7F95 for ; Fri, 29 Aug 2014 05:08:15 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id BECD8304039 for ; Fri, 29 Aug 2014 03:08:12 -0700 (PDT) X-ASG-Debug-ID: 1409306889-04cb6c5500663820001-NocioJ Received: from smtp.inserm.fr (smtp.inserm.fr [195.98.252.37]) by cuda.sgi.com with ESMTP id tu4YElnHXL2FSJ71 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 03:08:11 -0700 (PDT) X-Barracuda-Envelope-From: samuel.granjeaud@inserm.fr X-Barracuda-Apparent-Source-IP: 195.98.252.37 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.inserm.fr (SrvInserm) with ESMTP id 5B61216846A for ; Fri, 29 Aug 2014 12:08:09 +0200 (CEST) X-Virus-Scanned: amavisd-new at inserm.fr Received: from smtp.inserm.fr ([195.98.252.37]) by localhost (potentille.inserm.fr [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id btTV-QTKML_1 for ; Fri, 29 Aug 2014 12:08:09 +0200 (CEST) Received: from cognac-lmde.crcm.mrs (236-ne1068.marseille.inserm.fr [195.220.68.236]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by smtp.inserm.fr (SrvInserm) with ESMTP id 428651683DD for ; Fri, 29 Aug 2014 12:08:08 +0200 (CEST) Message-ID: <54005108.1020203@inserm.fr> Date: Fri, 29 Aug 2014 12:08:08 +0200 From: Samuel Granjeaud User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Run out of inodes? Content-Type: text/plain; charset=ISO-8859-1; format=flowed X-ASG-Orig-Subj: Run out of inodes? Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtp.inserm.fr[195.98.252.37] X-Barracuda-Start-Time: 1409306890 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8948 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Hi, Sorry if the answer is obvious, but I didn't find any clear answer after googling. I have a XFS system of 18T over LVM. Recently, I could not create new files or directories. # mkdir tempo mkdir: cannot create directory `tempo': No space left on device After deleting a few files, this command runs successfully. So I think that the system runs out of something, inodes I guess. But the df diagnosis does not enlight it: only 1% used. # df -ht xfs Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg1_backup-backup 18T 12T 6.6T 63% /mnt/vg1_backup/backup # df -it xfs Filesystem Inodes IUsed IFree IUse% Mounted on /dev/mapper/vg1_backup-backup 18874040320 530042 18873510278 1% /mnt/vg1_backup/backup So what is wrong? How should I solve the problem? I read about xfs_grow -m, but I am not sure if it could help. Of course, I rebooted the system before my trials. Best regards, Samuel From greg.freemyer@gmail.com Fri Aug 29 06:27:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 6DC2B7F9F for ; Fri, 29 Aug 2014 06:27:11 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id E2A77AC001 for ; Fri, 29 Aug 2014 04:27:07 -0700 (PDT) X-ASG-Debug-ID: 1409311626-04cbb054878f1920001-NocioJ Received: from mail-qa0-f46.google.com (mail-qa0-f46.google.com [209.85.216.46]) by cuda.sgi.com with ESMTP id QKCLR2E3DTp7VxL7 (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 29 Aug 2014 04:27:06 -0700 (PDT) X-Barracuda-Envelope-From: greg.freemyer@gmail.com X-Barracuda-Apparent-Source-IP: 209.85.216.46 X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.46] Received: by mail-qa0-f46.google.com with SMTP id w8so1974503qac.33 for ; Fri, 29 Aug 2014 04:27:06 -0700 (PDT) X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.46] X-Barracuda-IPDD: Level1 [gmail.com/209.85.216.46] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:in-reply-to:references:mime-version :content-transfer-encoding:content-type:subject:from:date:to:cc :message-id; bh=ECpCMf8S2hiuCO+hLw6n9QCpUwSjkwxqlC1+5fQXiu0=; b=TezQ0E0CA8Eq23zCl0MpdSR66SeUY6C2jPkuPaUjZXapA+1kFcfTIoAR3gLKYsYukA P3r10CncVxKNKMUG85vfgCASwOhzhFf7wJn+6BTrJlCar0X7qrfReP4VVT/sihkDibOW e3ihAipK5XDCdRofuSh2MNXaDpLk9PoTtC47Mrsimuj0UlRvlfKuOPdk3A48Hth0rN7j qsSB2SOYJzwRTkfmXH+TFCXkPHVHC14WIJBTXMlBQmNRpdQdbKekkroV2ZbBNu9+mb0o pnTwOOcqGP/+OaWh9tkB9tj4rYGgoArTMGxl/dr3XxnjHRF/owSqRvJQ58Oh15tzJLsQ pvlw== X-Received: by 10.224.16.138 with SMTP id o10mr16695198qaa.12.1409311626093; Fri, 29 Aug 2014 04:27:06 -0700 (PDT) Received: from [192.168.3.56] (c-98-251-114-210.hsd1.ga.comcast.net. [98.251.114.210]) by mx.google.com with ESMTPSA id b89sm10065323qgb.0.2014.08.29.04.27.04 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 29 Aug 2014 04:27:05 -0700 (PDT) User-Agent: K-9 Mail for Android In-Reply-To: <20140829083738.GD20518@dastard> References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> <20140827230732.GN20518@dastard> <20140829083738.GD20518@dastard> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Subject: Re: mount options question From: Greg Freemyer X-ASG-Orig-Subj: Re: mount options question Date: Fri, 29 Aug 2014 07:26:59 -0400 To: Dave Chinner ,Stefan Ring CC: Xfs ,weber@zbfmail.de Message-ID: <6306cfa5-457d-4794-8fc0-1768f7f1deec@email.android.com> X-Barracuda-Connect: mail-qa0-f46.google.com[209.85.216.46] X-Barracuda-Start-Time: 1409311626 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8950 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On August 29, 2014 4:37:38 AM EDT, Dave Chinner wrote: >On Fri, Aug 29, 2014 at 08:31:43AM +0200, Stefan Ring wrote: >> On Thu, Aug 28, 2014 at 1:07 AM, Dave Chinner >wrote: >> > On Wed, Aug 27, 2014 at 12:14:21PM +0200, Marko Weber|8000 wrote: >> >> >> >> sorry dave and all other, >> >> >> >> can you guys recommend me the most stable / best mount options for >> >> my new server with ssd´s and XFS filesystem? >> >> >> >> at moment i would set: >defaults,nobarrier,discard,logbsize=256k,noikeep >> >> or is just "default" the best solution and xfs detect itself whats >best. >> >> >> >> can you guide me a bit? >> >> >> >> as eleavtor i set elevator=noop >> >> >> >> i setup disks with linux softraid raid1. On top of the raid is LVM >> >> (for some data partations). >> >> >> >> >> >> would be nice to hear some tipps from you >> > >> > Unless you have specific requirements or have the knowledge to >> > understand how the different options affect behaviour, then just >use >> > the defaults. >> >> Mostly agreed, but using "discard" would be a no-brainer for me. I >> suppose XFS does not automatically switch it on for non-rotational >> storage. > >Yup, you're not using your brain. :P > >mount -o discard *sucks* on so many levels it is not funny. I don't >recommend that anybody *ever* use it, on XFS, ext4 or btrfs. Just >use fstrim if you ever need to clean up a SSD. In particular trim is a synchronous command in many SSDs, I don't know about the impact on the kernel block stack. For the SSD itself that means the SSDs basically flush their write cache on every trim call. I often tell people to do performance testing with and without it and report back to me if they see no degradation caused by -o discard. To date no one has ever reported back. I think -o discard should have never been introduced and certainly not 5 years ago. In theory, SSDs that handle trim as a asynchronous command are now available, but I don't know any specifics. In any case, fstrim works for almost all workloads and doesn't have the potential continuous negative impact of -o discard. Greg -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. From eflorac@intellique.com Fri Aug 29 06:43:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 10C337FA3 for ; Fri, 29 Aug 2014 06:43:44 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 91848AC002 for ; Fri, 29 Aug 2014 04:43:43 -0700 (PDT) X-ASG-Debug-ID: 1409312621-04cbb054858f21d0001-NocioJ Received: from mail1.g1.pair.com (mail1.g1.pair.com [66.39.3.162]) by cuda.sgi.com with ESMTP id vxkjA9UUYYhyCADr (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 04:43:41 -0700 (PDT) X-Barracuda-Envelope-From: eflorac@intellique.com X-Barracuda-Apparent-Source-IP: 66.39.3.162 Received: from localhost (localhost [127.0.0.1]) by mail1.g1.pair.com (Postfix) with SMTP id 3E6C82B885; Fri, 29 Aug 2014 07:43:41 -0400 (EDT) Received: from harpe.intellique.com (labo.djinux.com [82.225.196.72]) by mail1.g1.pair.com (Postfix) with ESMTPSA id 3290A2B3C1; Fri, 29 Aug 2014 07:43:40 -0400 (EDT) Date: Fri, 29 Aug 2014 13:43:43 +0200 From: Emmanuel Florac To: Samuel Granjeaud Cc: xfs@oss.sgi.com Subject: Re: Run out of inodes? Message-ID: <20140829134343.5d1c1c61@harpe.intellique.com> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <54005108.1020203@inserm.fr> References: <54005108.1020203@inserm.fr> Organization: Intellique X-Mailer: Claws Mail 3.10.0 (GTK+ 2.24.20; i486-slackware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail1.g1.pair.com[66.39.3.162] X-Barracuda-Start-Time: 1409312621 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8950 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Le Fri, 29 Aug 2014 12:08:08 +0200 Samuel Granjeaud =E9crivait: > I have a XFS system of 18T over LVM. Recently, I could not create new=20 > files or directories. What is the distribution, the kernel version (uname -a)? What are the mount options? Maybe the FS has been mounted with inode64 as an option at some point in time, but isn't anymore? --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ From bfoster@redhat.com Fri Aug 29 06:48:23 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id DD6B57FA6 for ; Fri, 29 Aug 2014 06:48:23 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id BCE8A304048 for ; Fri, 29 Aug 2014 04:48:20 -0700 (PDT) X-ASG-Debug-ID: 1409312898-04cb6c55006678e0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id IiQ5ei2ehe8gEJ5M (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 04:48:19 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TBm7cr006162 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 29 Aug 2014 07:48:08 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TBm7pc010287; Fri, 29 Aug 2014 07:48:07 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 8A72112577F; Fri, 29 Aug 2014 07:48:06 -0400 (EDT) Date: Fri, 29 Aug 2014 07:48:06 -0400 From: Brian Foster To: Samuel Granjeaud Cc: xfs@oss.sgi.com Subject: Re: Run out of inodes? Message-ID: <20140829114806.GA17610@bfoster.bfoster> X-ASG-Orig-Subj: Re: Run out of inodes? References: <54005108.1020203@inserm.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <54005108.1020203@inserm.fr> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409312899 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 29, 2014 at 12:08:08PM +0200, Samuel Granjeaud wrote: > Hi, > > Sorry if the answer is obvious, but I didn't find any clear answer after > googling. > > I have a XFS system of 18T over LVM. Recently, I could not create new files > or directories. > > # mkdir tempo > mkdir: cannot create directory `tempo': No space left on device > > After deleting a few files, this command runs successfully. > > So I think that the system runs out of something, inodes I guess. > > But the df diagnosis does not enlight it: only 1% used. > > # df -ht xfs > Filesystem Size Used Avail Use% Mounted on > /dev/mapper/vg1_backup-backup > 18T 12T 6.6T 63% /mnt/vg1_backup/backup > # df -it xfs > Filesystem Inodes IUsed IFree IUse% Mounted on > /dev/mapper/vg1_backup-backup > 18874040320 530042 18873510278 1% > /mnt/vg1_backup/backup > > So what is wrong? How should I solve the problem? > > I read about xfs_grow -m, but I am not sure if it could help. > Of course, I rebooted the system before my trials. > You should probably include more information for context: http://xfs.org/index.php/XFS_FAQ#Q:_What_information_should_I_include_when_reporting_a_problem.3F That aside... is inode64 enabled? Is imaxpct set to a non-default value? Also, how is this filesystem used? I notice it's named as some kind of backup volume. Brian > Best regards, > Samuel > > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From bfoster@redhat.com Fri Aug 29 07:13:09 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B9CA07FAB for ; Fri, 29 Aug 2014 07:13:09 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id A723E8F8049 for ; Fri, 29 Aug 2014 05:13:06 -0700 (PDT) X-ASG-Debug-ID: 1409314385-04cb6c54ff668570001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id dJpPaV0OMomRmox7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 05:13:05 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TCD2cl004488 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 29 Aug 2014 08:13:03 -0400 Received: from laptop.bfoster (vpn-61-58.rdu2.redhat.com [10.10.61.58]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TCD0r5028464 (version=TLSv1/SSLv3 cipher=AES128-GCM-SHA256 bits=128 verify=NO); Fri, 29 Aug 2014 08:13:02 -0400 Date: Fri, 29 Aug 2014 08:13:00 -0400 From: Brian Foster To: Dave Chinner Cc: xfs@oss.sgi.com Subject: Re: [PATCH 1/7 v2] xfs: don't dirty buffers beyond EOF Message-ID: <20140829121300.GA3640@laptop.bfoster> X-ASG-Orig-Subj: Re: [PATCH 1/7 v2] xfs: don't dirty buffers beyond EOF References: <1409226551-16570-1-git-send-email-david@fromorbit.com> <1409226551-16570-2-git-send-email-david@fromorbit.com> <20140828133457.GA35386@bfoster.bfoster> <20140828223706.GT20518@dastard> <20140828234932.GW20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140828234932.GW20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409314385 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Fri, Aug 29, 2014 at 09:49:32AM +1000, Dave Chinner wrote: > > From: Dave Chinner > > generic/263 is failing fsx at this point with a page spanning > EOF that cannot be invalidated. The operations are: > > 1190 mapwrite 0x52c00 thru 0x5e569 (0xb96a bytes) > 1191 mapread 0x5c000 thru 0x5d636 (0x1637 bytes) > 1192 write 0x5b600 thru 0x771ff (0x1bc00 bytes) > > where 1190 extents EOF from 0x54000 to 0x5e569. When the direct IO > write attempts to invalidate the cached page over this range, it > fails with -EBUSY and so any attempt to do page invalidation fails. > > The real question is this: Why can't that page be invalidated after > it has been written to disk and cleaned? > > Well, there's data on the first two buffers in the page (1k block > size, 4k page), but the third buffer on the page (i.e. beyond EOF) > is failing drop_buffers because it's bh->b_state == 0x3, which is > BH_Uptodate | BH_Dirty. IOWs, there's dirty buffers beyond EOF. Say > what? > > OK, set_buffer_dirty() is called on all buffers from > __set_page_buffers_dirty(), regardless of whether the buffer is > beyond EOF or not, which means that when we get to ->writepage, > we have buffers marked dirty beyond EOF that we need to clean. > So, we need to implement our own .set_page_dirty method that > doesn't dirty buffers beyond EOF. > > This is messy because the buffer code is not meant to be shared > and it has interesting locking issues on the buffer dirty bits. > So just copy and paste it and then modify it to suit what we need. > > Note: the solutions the other filesystems and generic block code use > of marking the buffers clean in ->writepage does not work for XFS. > It still leaves dirty buffers beyond EOF and invalidations still > fail. Hence rather than play whack-a-mole, this patch simply > prevents those buffers from being dirtied in the first place. > > cc: > Signed-off-by: Dave Chinner > --- > > v2: fix page offset calculation. passed 61 million fsx ops before > hitting an unrelated problem in xfs_zero_file_space(), so no > difference to the result with this updated patch. > > fs/xfs/xfs_aops.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 58 insertions(+) > > diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c > index 11e9b4c..9bd2f53 100644 > --- a/fs/xfs/xfs_aops.c > +++ b/fs/xfs/xfs_aops.c > @@ -1753,11 +1753,69 @@ xfs_vm_readpages( > return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks); > } > > +/* > + * This is basically a copy of __set_page_dirty_buffers() with one > + * small tweak: buffers beyond EOF do not get marked dirty. If we mark them > + * dirty, we'll never be able to clean them because we don't write buffers > + * beyond EOF, and that means we can't invalidate pages that span EOF > + * that have been marked dirty. Further, the dirty state can leak into > + * the file interior if the file is extended, resulting in all sorts of > + * bad things happening as the state does not match the unerlying data. underlying I tend to agree with Christoph in that it would be nice if this was handled generically one way or another. That said, I understand not wanting to tweak behavior for other filesystems. You mention that the trajectory for XFS is to kill the use of buffer heads, I suppose that means this code is hopefully short-lived and probably less likely subject to problems due to changes in the core code. Given that and the fact that it looks correct at this point: Reviewed-by: Brian Foster Though it would be nice to see a small addition to the comment above to state that explicitly. E.g., 'XXX this code should die when buffer heads in XFS die...' or something along those lines... thanks. Brian > + */ > +STATIC int > +xfs_vm_set_page_dirty( > + struct page *page) > +{ > + struct address_space *mapping = page->mapping; > + struct inode *inode = mapping->host; > + loff_t end_offset; > + loff_t offset; > + int newly_dirty; > + > + if (unlikely(!mapping)) > + return !TestSetPageDirty(page); > + > + end_offset = i_size_read(inode); > + offset = page_offset(page); > + > + spin_lock(&mapping->private_lock); > + if (page_has_buffers(page)) { > + struct buffer_head *head = page_buffers(page); > + struct buffer_head *bh = head; > + > + do { > + if (offset < end_offset) > + set_buffer_dirty(bh); > + bh = bh->b_this_page; > + offset += 1 << inode->i_blkbits; > + } while (bh != head); > + } > + newly_dirty = !TestSetPageDirty(page); > + spin_unlock(&mapping->private_lock); > + > + if (newly_dirty) { > + /* sigh - __set_page_dirty() is static, so copy it here, too */ > + unsigned long flags; > + > + spin_lock_irqsave(&mapping->tree_lock, flags); > + if (page->mapping) { /* Race with truncate? */ > + WARN_ON_ONCE(!PageUptodate(page)); > + account_page_dirtied(page, mapping); > + radix_tree_tag_set(&mapping->page_tree, > + page_index(page), PAGECACHE_TAG_DIRTY); > + } > + spin_unlock_irqrestore(&mapping->tree_lock, flags); > + __mark_inode_dirty(mapping->host, I_DIRTY_PAGES); > + } > + return newly_dirty; > +} > + > const struct address_space_operations xfs_address_space_operations = { > .readpage = xfs_vm_readpage, > .readpages = xfs_vm_readpages, > .writepage = xfs_vm_writepage, > .writepages = xfs_vm_writepages, > + .set_page_dirty = xfs_vm_set_page_dirty, > .releasepage = xfs_vm_releasepage, > .invalidatepage = xfs_vm_invalidatepage, > .write_begin = xfs_vm_write_begin, > > _______________________________________________ > xfs mailing list > xfs@oss.sgi.com > http://oss.sgi.com/mailman/listinfo/xfs From samuel.granjeaud@inserm.fr Fri Aug 29 08:29:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 899457FAA for ; Fri, 29 Aug 2014 08:29:27 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 78043304032 for ; Fri, 29 Aug 2014 06:29:24 -0700 (PDT) X-ASG-Debug-ID: 1409318957-04cbb054868f65f0001-NocioJ Received: from smtp.inserm.fr (smtp.inserm.fr [195.98.252.37]) by cuda.sgi.com with ESMTP id Cb3XDCkndKGCaTS7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 06:29:18 -0700 (PDT) X-Barracuda-Envelope-From: samuel.granjeaud@inserm.fr X-Barracuda-Apparent-Source-IP: 195.98.252.37 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.inserm.fr (SrvInserm) with ESMTP id B143016825F for ; Fri, 29 Aug 2014 15:29:17 +0200 (CEST) X-Virus-Scanned: amavisd-new at inserm.fr Received: from smtp.inserm.fr ([195.98.252.37]) by localhost (potentille.inserm.fr [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id NYm4gkavOM0y for ; Fri, 29 Aug 2014 15:29:17 +0200 (CEST) Received: from cognac-lmde.crcm.mrs (236-ne1068.marseille.inserm.fr [195.220.68.236]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by smtp.inserm.fr (SrvInserm) with ESMTP id 8C911168356 for ; Fri, 29 Aug 2014 15:29:16 +0200 (CEST) Message-ID: <5400802C.5050005@inserm.fr> Date: Fri, 29 Aug 2014 15:29:16 +0200 From: Samuel Granjeaud User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: Run out of inodes? References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <20140829114806.GA17610@bfoster.bfoster> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtp.inserm.fr[195.98.252.37] X-Barracuda-Start-Time: 1409318958 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8953 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Taking into account the two answers, here is some more information. The system is a openfiler installation, v2.3, up-to-date. https://www.openfiler.com/community/download The problematic system is a backup but the production system uses the same openfiler NAS system. The difference is that there are currently more files on the backup system than the production system; so I guess the problem will appear sooner on the prod sys. # xfs_info /dev/vg1_backup/backup meta-data=/mnt/vg1_backup/backup isize=256 agcount=80, agsize=58981376 blks = sectsz=512 data = bsize=4096 blocks=4718510080, imaxpct=25 = sunit=0 swidth=0 blks, unwritten=1 naming =version 2 bsize=4096 log =internal bsize=4096 blocks=32768, version=1 = sectsz=512 sunit=0 blks realtime =none extsz=65536 blocks=0, rtextents=0 # uname -a Linux 2.6.26.8-1.0.11.smp.gcc3.4.x86_64 #1 SMP Sun Jan 11 02:42:55 GMT 2009 x86_64 x86_64 x86_64 GNU/Linux # xfs_info -V /dev/vg1_backup/backup xfs_info version 2.6.25 # cat /etc/fstab ... /dev/vg1/pcurrent /mnt/vg1/pcurrent xfs defaults,usrquota,grpquota 0 0 # cat /etc/mtab ... /dev/mapper/vg1-pcurrent /mnt/vg1/pcurrent xfs rw,usrquota,grpquota 0 0 # lvm version LVM version: 2.02.34 (2008-04-10) Library version: 1.02.24 (2007-12-20) Driver version: 4.13.0 ]# more /proc/meminfo /proc/mounts /proc/partitions :::::::::::::: /proc/meminfo :::::::::::::: MemTotal: 2057876 kB MemFree: 18808 kB Buffers: 3868 kB Cached: 1906736 kB SwapCached: 160 kB Active: 581108 kB Inactive: 1367680 kB SwapTotal: 1028152 kB SwapFree: 1027848 kB Dirty: 156 kB Writeback: 0 kB AnonPages: 38168 kB Mapped: 34376 kB Slab: 67104 kB SReclaimable: 55772 kB SUnreclaim: 11332 kB PageTables: 4112 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 2057088 kB Committed_AS: 105580 kB VmallocTotal: 34359738367 kB VmallocUsed: 272688 kB VmallocChunk: 34359465359 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB :::::::::::::: /proc/mounts :::::::::::::: rootfs / rootfs rw 0 0 /dev /dev tmpfs rw,mode=755 0 0 /dev/root / ext3 rw,errors=continue,data=ordered 0 0 /proc /proc proc rw 0 0 /proc/bus/usb /proc/bus/usb usbfs rw 0 0 /sys /sys sysfs rw 0 0 devpts /dev/pts devpts rw,gid=5,mode=620 0 0 /dev/sda1 /boot ext3 rw,errors=continue,data=ordered 0 0 tmpfs /dev/shm tmpfs rw 0 0 /dev/vg1/pcurrent /mnt/vg1/pcurrent xfs rw,attr2,nobarrier,usrquota,prjquota,grpquota 0 0 none /proc/sys/fs/binfmt_misc binfmt_misc rw 0 0 sunrpc /var/lib/nfs/rpc_pipefs rpc_pipefs rw 0 0 :::::::::::::: /proc/partitions :::::::::::::: major minor #blocks name 8 0 3145728 sda 8 1 104391 sda1 8 2 2008125 sda2 8 3 1028160 sda3 8 16 1887436800 sdb 8 17 1887436656 sdb1 8 32 1887436800 sdc 8 33 1887436656 sdc1 8 48 1887436800 sdd 8 49 1887436656 sdd1 8 64 1887436800 sde 8 65 1887436656 sde1 8 80 1887436800 sdf 8 81 1887436656 sdf1 8 96 1887436800 sdg 8 97 1887436656 sdg1 8 112 1887436800 sdh 8 113 1887436656 sdh1 8 128 1887436800 sdi 8 129 1887436656 sdi1 8 144 1887436800 sdj 8 145 1887436656 sdj1 8 160 1887436800 sdk 8 161 1887436656 sdk1 8 176 655360000 sdl 8 177 655355578 sdl1 253 0 18874040320 dm-0 The system is a ESXi virtual machine. RAID is hardware, managed at the BIOS level. Disks are DELL SATA. I have no idea concerning the inode64 option. Just tell me how to find it out. I don't think this option was changed: as previously told, removing a few files allows files to be created without error. I could add some more information if needed. Thanks for your help, Samuel From sandeen@sandeen.net Fri Aug 29 10:02:31 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E90CD7F9A for ; Fri, 29 Aug 2014 10:02:30 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 77C90AC007 for ; Fri, 29 Aug 2014 08:02:27 -0700 (PDT) X-ASG-Debug-ID: 1409324545-04cbb054868faed0001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id DVW4VFMM5wjXJtvW for ; Fri, 29 Aug 2014 08:02:25 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 125466370CED; Fri, 29 Aug 2014 10:02:25 -0500 (CDT) Message-ID: <54009603.9050404@sandeen.net> Date: Fri, 29 Aug 2014 10:02:27 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Samuel Granjeaud , xfs@oss.sgi.com Subject: Re: Run out of inodes? References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> <5400802C.5050005@inserm.fr> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <5400802C.5050005@inserm.fr> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1409324545 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8955 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 On 8/29/14, 8:29 AM, Samuel Granjeaud wrote: > Taking into account the two answers, here is some more information. > > The system is a openfiler installation, v2.3, up-to-date. > https://www.openfiler.com/community/download > > The problematic system is a backup but the production system uses the same openfiler NAS system. The difference is that there are currently more files on the backup system than the production system; so I guess the problem will appear sooner on the prod sys. > > # xfs_info /dev/vg1_backup/backup > meta-data=/mnt/vg1_backup/backup isize=256 agcount=80, agsize=58981376 blks > = sectsz=512 > data = bsize=4096 blocks=4718510080, imaxpct=25 > = sunit=0 swidth=0 blks, unwritten=1 > naming =version 2 bsize=4096 > log =internal bsize=4096 blocks=32768, version=1 > = sectsz=512 sunit=0 blks > realtime =none extsz=65536 blocks=0, rtextents=0 > > # uname -a > Linux 2.6.26.8-1.0.11.smp.gcc3.4.x86_64 #1 SMP Sun Jan 11 02:42:55 GMT 2009 x86_64 x86_64 x86_64 GNU/Linux > > # xfs_info -V /dev/vg1_backup/backup > xfs_info version 2.6.25 > > # cat /etc/fstab > ... > /dev/vg1/pcurrent /mnt/vg1/pcurrent xfs defaults,usrquota,grpquota 0 0 > > # cat /etc/mtab > ... > /dev/mapper/vg1-pcurrent /mnt/vg1/pcurrent xfs rw,usrquota,grpquota 0 0 > I have no idea concerning the inode64 option. Just tell me how to find it out. I don't think this option was changed: as previously told, removing a few files allows files to be created without error. You'll want to be using the inode64 mount option for this filesystem; I'm surprised the openfiler folks didn't do this by default. http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_inode64_mount_option_for.3F add it to fstab for this filesystem, reboot the box (or unmount/mount the filesystem) and all should be well. -Eric From samuel.granjeaud@inserm.fr Fri Aug 29 10:22:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 41CC37FB7 for ; Fri, 29 Aug 2014 10:22:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id CD1FEAC003 for ; Fri, 29 Aug 2014 08:22:10 -0700 (PDT) X-ASG-Debug-ID: 1409325725-04bdf010a1604230001-NocioJ Received: from smtp.inserm.fr (smtp.inserm.fr [195.98.252.37]) by cuda.sgi.com with ESMTP id 3TQaPuC6qDFNVYYF (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 08:22:06 -0700 (PDT) X-Barracuda-Envelope-From: samuel.granjeaud@inserm.fr X-Barracuda-Apparent-Source-IP: 195.98.252.37 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.inserm.fr (SrvInserm) with ESMTP id BF9D1168473 for ; Fri, 29 Aug 2014 17:22:04 +0200 (CEST) X-Virus-Scanned: amavisd-new at inserm.fr Received: from smtp.inserm.fr ([195.98.252.37]) by localhost (potentille.inserm.fr [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id gByL1T2nsJPa for ; Fri, 29 Aug 2014 17:22:04 +0200 (CEST) Received: from cognac-lmde.crcm.mrs (236-ne1068.marseille.inserm.fr [195.220.68.236]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by smtp.inserm.fr (SrvInserm) with ESMTP id A686916841B for ; Fri, 29 Aug 2014 17:22:03 +0200 (CEST) Message-ID: <54009A9B.9000208@inserm.fr> Date: Fri, 29 Aug 2014 17:22:03 +0200 From: Samuel Granjeaud User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: xfs@oss.sgi.com Subject: Re: Run out of inodes? References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> <5400802C.5050005@inserm.fr> <54009603.9050404@sandeen.net> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <54009603.9050404@sandeen.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: smtp.inserm.fr[195.98.252.37] X-Barracuda-Start-Time: 1409325725 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8956 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 Eric Sandeen wrote, On 29/08/14 17:02: > > You'll want to be using the inode64 mount option for this filesystem; I'm surprised the openfiler folks didn't do this by default. > > http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_inode64_mount_option_for.3F Well, I am using the 2.3 version; may be the 2.99 version does it. > add it to fstab for this filesystem, reboot the box (or unmount/mount the filesystem) and all should be well. I added the option and rebooted the system. A short rsync ran successfully, but it may not have exhausted the pool of previously released inodes. Tonight a bigger rsync will take place and I will let you know the result. Thanks for pointing me this option, that I hesitated to apply. From stan@hardwarefreak.com Fri Aug 29 11:38:37 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 10EFC7FBB for ; Fri, 29 Aug 2014 11:38:37 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id F24868F8052 for ; Fri, 29 Aug 2014 09:38:33 -0700 (PDT) X-ASG-Debug-ID: 1409330304-04cb6c54fd672ed0001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id ZlSFAqe1BSdyhtsQ for ; Fri, 29 Aug 2014 09:38:25 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id 4804D6C192; Fri, 29 Aug 2014 11:38:24 -0500 (CDT) To: Dave Chinner Subject: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Fri, 29 Aug 2014 11:38:16 -0500 From: Stan Hoeppner Cc: In-Reply-To: <20140828230817.GU20518@dastard> References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> Message-ID: <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409330304 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at sgi.com On Fri, 29 Aug 2014 09:08:17 +1000, Dave Chinner wrote: > On Thu, Aug 28, 2014 at 05:31:33PM -0500, Stan Hoeppner wrote: >> On Thu, 28 Aug 2014 10:32:27 +1000, Dave Chinner >> wrote: >> > On Tue, Aug 26, 2014 at 12:19:43PM -0500, Stan Hoeppner wrote: >> >> Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): >> >> xfs_do_force_shutdown(0x8) called from line 3732 of file >> >> fs/xfs/xfs_bmap.c. >> >> Return address = 0xffffffffa01cc9a6 >> > >> > Yup, that's kinda important. That's from xfs_bmap_finish(), and >> > freeing an extent has failed and triggered SHUTDOWN_CORRUPT_INCORE >> > which it's found some kind of inconsistency in the free space >> > btrees. So, likely the same problem that caused EFI recovery to fail >> > on the other volume. >> > >> > Are the tests being run on newly made filesystems? If not, have >> > these filesystems had xfs_repair run on them after a failure? If >> > so, what is the error that is fixed? If not, does repairing the >> > filesystem make the problem go away? >> >> Newly made after every error of any kind, whether app, XFS shutdown, call >> trace, etc. I've not attempted xfs_repair. > > Please do. Another storage crash yesterday. xfs_repair output inline below for the 7 filesystems. I'm also pasting the dmesg output. This time there is no oops, no call traces. The filesystems mounted fine after mounting, replaying, and repairing. >> Part of the problem is the storage hardware is a moving target. >> They're swapping modules and upgrading firmware every few days. >> And I don't have a view into that. So it's difficult to know when >> IO problems are due to hardware or buggy code. However, I can >> state with certainty that we only run into the XFS problems when >> using AIO. And it has occurred on both test rigs, each of which >> have their own RAID controllers and disks. > > Which, in and of itself doesn't point at AIO or XFS being the > problem. What is says is that something goes wrong under the > extremely high IO load that can be generated with AIO+DIO. That > "something" might be a race in XFS, a bug in AIO, or could be a > load related storage problem. > > For example, I've been on the wrong end of hard to track down > problems on beta/early access storage before. For example there was > an incident years ago that took 3 more than 3 months to isolate a > filesystem corruption that occurred under high load. It took that > long to isolate a test case, reproduce it in house on identical > hardware, firmware, software, etc and then *capture it with a FC > analyser*. > > The bug? The bleeding edge storage arrays being used had had a > firmware bug in it. When the number of outstanding IOs hit the > *array controller* command tag queue depth limit (some several > thousand simultaneous IOs in flight) it would occasionally misdirect > a single write IO to the *wrong lun*. i.e. it would misdirect a > write. > > It was only under *extreme* loads that this would happen, and it's > this sort of load that AIO+DIO can easily generate - you can have > several thousand IOs in flight without too much hassle, and that > will hit limits in the storage arrays that aren't often hit. Array > controller CTQ depth limits are a good example of a limit that > normal IO won't go near to stressing. I hadn't considered that up to this point. That is *very* insightful, and applicable, since we are dealing with a beta storage array and firmware. Worth mentioning is that the storage vendor has added a custom routine which expends Herculean effort to identify full stripes before writeback. This because some of our writes for a given low rate stream are as low as 32KB and may be 2-3 seconds apart. With a 64-128KB chunk, 768 to 1536KB stripe width, we'd get massive RMW without this feature. Testing thus far shows it is fairly effective, though we still get pretty serious RMW due to the fact we're writing 350 of these small streams per array at ~72 KB/s max, along with 2 streams at ~48 MB/s, and and 50 streams at ~1.2 MB/s. Multiply this by 7 LUNs per controller and it becomes clear we're putting a pretty serious load on the firmware and cache. >> >> update timestamps for inode 0xf000000a4 >> >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.605835] XFS (sdd): failed >> to >> >> update timestamps for inode 0x2810f413c >> >> Aug 25 23:05:49 Anguish-ssu-1 kernel: [22419.606169] XFS (sdd): failed >> to >> >> update timestamps for inode 0x60000009f >> > >> > And that is interesting. Makes me wonder if the inode is getting >> > unlocked on transaction commit failure, or whether there's some >> > other path in the shutdown code that is not unlocking the inode >> > correctly. >> >> Is this a separate time stamp from that which noatime disables? We're >> mounting with noatime, nodiratime. > > Yes. mtime/ctime updates go through this on the write path. > > Cheers, > > Dave. dmesg and xfs_repair [ 9707.147739] end_request: I/O error, dev dm-8, sector 769 [ 9707.147743] end_request: I/O error, dev dm-5, sector 1 [ 9707.147746] end_request: I/O error, dev dm-17, sector 1 [ 9707.147752] end_request: I/O error, dev dm-8, sector 770 [ 9707.147755] end_request: I/O error, dev dm-5, sector 2 [ 9707.147757] end_request: I/O error, dev dm-17, sector 2 [ 9707.147762] end_request: I/O error, dev dm-5, sector 3 [ 9707.147765] end_request: I/O error, dev dm-17, sector 3 [ 9707.147767] end_request: I/O error, dev dm-8, sector 771 [ 9707.147771] end_request: I/O error, dev dm-5, sector 4 [ 9707.147776] end_request: I/O error, dev dm-17, sector 4 [ 9707.147778] end_request: I/O error, dev dm-8, sector 772 [ 9707.147786] end_request: I/O error, dev dm-17, sector 5 [ 9707.147787] end_request: I/O error, dev dm-8, sector 773 [ 9707.147789] end_request: I/O error, dev dm-5, sector 5 [ 9707.147797] end_request: I/O error, dev dm-8, sector 774 [ 9707.147799] end_request: I/O error, dev dm-17, sector 6 [ 9707.147801] end_request: I/O error, dev dm-5, sector 6 [ 9707.147806] end_request: I/O error, dev dm-17, sector 7 [ 9707.147808] end_request: I/O error, dev dm-5, sector 7 [ 9707.147816] end_request: I/O error, dev dm-17, sector 0 [ 9707.147820] end_request: I/O error, dev dm-5, sector 0 [ 9707.147823] end_request: I/O error, dev dm-17, sector 1 [ 9707.147829] end_request: I/O error, dev dm-5, sector 1 [ 9707.147831] end_request: I/O error, dev dm-17, sector 2 [ 9707.147836] end_request: I/O error, dev dm-5, sector 2 [ 9707.147838] end_request: I/O error, dev dm-17, sector 3 [ 9707.147844] end_request: I/O error, dev dm-17, sector 4 [ 9707.147848] end_request: I/O error, dev dm-5, sector 3 [ 9707.147850] end_request: I/O error, dev dm-8, sector 775 [ 9707.147855] end_request: I/O error, dev dm-17, sector 5 [ 9707.147858] end_request: I/O error, dev dm-5, sector 4 [ 9707.147866] end_request: I/O error, dev dm-5, sector 5 [ 9707.147868] end_request: I/O error, dev dm-17, sector 6 [ 9707.147872] end_request: I/O error, dev dm-8, sector 768 [ 9707.147875] end_request: I/O error, dev dm-17, sector 7 [ 9707.147879] end_request: I/O error, dev dm-8, sector 769 [ 9707.147883] end_request: I/O error, dev dm-17, sector 0 [ 9707.147885] end_request: I/O error, dev dm-5, sector 6 [ 9707.147891] end_request: I/O error, dev dm-17, sector 1 [ 9707.147892] end_request: I/O error, dev dm-5, sector 7 [ 9707.147898] end_request: I/O error, dev dm-17, sector 2 [ 9707.147902] end_request: I/O error, dev dm-5, sector 0 [ 9707.147904] end_request: I/O error, dev dm-17, sector 3 [ 9707.147910] end_request: I/O error, dev dm-5, sector 1 [ 9707.147912] end_request: I/O error, dev dm-17, sector 4 [ 9707.147917] end_request: I/O error, dev dm-5, sector 2 [ 9707.147919] end_request: I/O error, dev dm-17, sector 5 [ 9707.147925] end_request: I/O error, dev dm-5, sector 3 [ 9707.147927] end_request: I/O error, dev dm-17, sector 6 [ 9707.147931] end_request: I/O error, dev dm-5, sector 4 [ 9707.147933] end_request: I/O error, dev dm-17, sector 7 [ 9707.147935] end_request: I/O error, dev dm-8, sector 770 [ 9707.147938] end_request: I/O error, dev dm-5, sector 5 [ 9707.147941] end_request: I/O error, dev dm-8, sector 771 [ 9707.147944] end_request: I/O error, dev dm-17, sector 0 [ 9707.147946] end_request: I/O error, dev dm-5, sector 6 [ 9707.147948] end_request: I/O error, dev dm-8, sector 772 [ 9707.147952] end_request: I/O error, dev dm-5, sector 7 [ 9707.147954] end_request: I/O error, dev dm-8, sector 773 [ 9707.147956] end_request: I/O error, dev dm-17, sector 1 [ 9707.147961] end_request: I/O error, dev dm-5, sector 0 [ 9707.147963] end_request: I/O error, dev dm-17, sector 2 [ 9707.147965] end_request: I/O error, dev dm-8, sector 774 [ 9707.147968] end_request: I/O error, dev dm-5, sector 1 [ 9707.147970] end_request: I/O error, dev dm-8, sector 775 [ 9707.147972] end_request: I/O error, dev dm-17, sector 3 [ 9707.147975] end_request: I/O error, dev dm-5, sector 2 [ 9707.147979] end_request: I/O error, dev dm-17, sector 4 [ 9707.147981] end_request: I/O error, dev dm-5, sector 3 [ 9707.147985] end_request: I/O error, dev dm-8, sector 776 [ 9707.147987] end_request: I/O error, dev dm-17, sector 5 [ 9707.147988] end_request: I/O error, dev dm-5, sector 4 [ 9707.147993] end_request: I/O error, dev dm-17, sector 6 [ 9707.147995] end_request: I/O error, dev dm-5, sector 5 [ 9707.147997] end_request: I/O error, dev dm-8, sector 777 [ 9707.148002] end_request: I/O error, dev dm-5, sector 6 [ 9707.148004] end_request: I/O error, dev dm-8, sector 778 [ 9707.148006] end_request: I/O error, dev dm-17, sector 7 [ 9707.148008] end_request: I/O error, dev dm-5, sector 7 [ 9707.148012] end_request: I/O error, dev dm-8, sector 779 [ 9707.148014] end_request: I/O error, dev dm-17, sector 0 [ 9707.148017] end_request: I/O error, dev dm-5, sector 0 [ 9707.148019] end_request: I/O error, dev dm-8, sector 780 [ 9707.148021] end_request: I/O error, dev dm-17, sector 1 [ 9707.148023] end_request: I/O error, dev dm-5, sector 1 [ 9707.148025] end_request: I/O error, dev dm-8, sector 781 [ 9707.148028] end_request: I/O error, dev dm-17, sector 2 [ 9707.148031] end_request: I/O error, dev dm-5, sector 2 [ 9707.148033] end_request: I/O error, dev dm-8, sector 782 [ 9707.148036] end_request: I/O error, dev dm-17, sector 3 [ 9707.148042] end_request: I/O error, dev dm-5, sector 3 [ 9707.148044] end_request: I/O error, dev dm-17, sector 4 [ 9707.148052] end_request: I/O error, dev dm-17, sector 5 [ 9707.148053] end_request: I/O error, dev dm-5, sector 4 [ 9707.148058] end_request: I/O error, dev dm-17, sector 6 [ 9707.148066] end_request: I/O error, dev dm-5, sector 5 [ 9707.148069] end_request: I/O error, dev dm-17, sector 7 [ 9707.148070] end_request: I/O error, dev dm-8, sector 783 [ 9707.148074] end_request: I/O error, dev dm-5, sector 6 [ 9707.148080] end_request: I/O error, dev dm-8, sector 776 [ 9707.148081] end_request: I/O error, dev dm-17, sector 128 [ 9707.148085] end_request: I/O error, dev dm-5, sector 7 [ 9707.148088] end_request: I/O error, dev dm-17, sector 129 [ 9707.148093] end_request: I/O error, dev dm-8, sector 777 [ 9707.148094] end_request: I/O error, dev dm-5, sector 16 [ 9707.148098] end_request: I/O error, dev dm-17, sector 130 [ 9707.148102] end_request: I/O error, dev dm-5, sector 17 [ 9707.148105] end_request: I/O error, dev dm-17, sector 131 [ 9707.148109] end_request: I/O error, dev dm-5, sector 18 [ 9707.148113] end_request: I/O error, dev dm-17, sector 132 [ 9707.148116] end_request: I/O error, dev dm-5, sector 19 [ 9707.148121] end_request: I/O error, dev dm-17, sector 133 [ 9707.148123] end_request: I/O error, dev dm-5, sector 20 [ 9707.148131] end_request: I/O error, dev dm-5, sector 21 [ 9707.148133] end_request: I/O error, dev dm-17, sector 134 [ 9707.148135] end_request: I/O error, dev dm-8, sector 778 [ 9707.148140] end_request: I/O error, dev dm-17, sector 135 [ 9707.148142] end_request: I/O error, dev dm-5, sector 22 [ 9707.148144] end_request: I/O error, dev dm-8, sector 779 [ 9707.148149] end_request: I/O error, dev dm-5, sector 23 [ 9707.148155] end_request: I/O error, dev dm-17, sector 128 [ 9707.148157] end_request: I/O error, dev dm-8, sector 780 [ 9707.148161] end_request: I/O error, dev dm-5, sector 0 [ 9707.148166] end_request: I/O error, dev dm-8, sector 781 [ 9707.148168] end_request: I/O error, dev dm-17, sector 129 [ 9707.148174] end_request: I/O error, dev dm-5, sector 1 [ 9707.148175] end_request: I/O error, dev dm-17, sector 130 [ 9707.148180] end_request: I/O error, dev dm-5, sector 2 [ 9707.148182] end_request: I/O error, dev dm-17, sector 131 [ 9707.148187] end_request: I/O error, dev dm-5, sector 3 [ 9707.148190] end_request: I/O error, dev dm-17, sector 132 [ 9707.148197] end_request: I/O error, dev dm-5, sector 4 [ 9707.148202] end_request: I/O error, dev dm-17, sector 133 [ 9707.148205] end_request: I/O error, dev dm-8, sector 782 [ 9707.148211] end_request: I/O error, dev dm-8, sector 783 [ 9707.148214] end_request: I/O error, dev dm-17, sector 134 [ 9707.148218] end_request: I/O error, dev dm-5, sector 5 [ 9707.148221] end_request: I/O error, dev dm-17, sector 135 [ 9707.148224] end_request: I/O error, dev dm-5, sector 6 [ 9707.148230] end_request: I/O error, dev dm-17, sector 16 [ 9707.148232] end_request: I/O error, dev dm-5, sector 7 [ 9707.148237] end_request: I/O error, dev dm-17, sector 17 [ 9707.148243] end_request: I/O error, dev dm-5, sector 0 [ 9707.148247] end_request: I/O error, dev dm-17, sector 18 [ 9707.148249] end_request: I/O error, dev dm-8, sector 784 [ 9707.148254] end_request: I/O error, dev dm-17, sector 19 [ 9707.148256] end_request: I/O error, dev dm-8, sector 785 [ 9707.148261] end_request: I/O error, dev dm-17, sector 20 [ 9707.148263] end_request: I/O error, dev dm-8, sector 786 [ 9707.148268] end_request: I/O error, dev dm-5, sector 1 [ 9707.148271] end_request: I/O error, dev dm-8, sector 787 [ 9707.148273] end_request: I/O error, dev dm-17, sector 21 [ 9707.148277] end_request: I/O error, dev dm-8, sector 788 [ 9707.148280] end_request: I/O error, dev dm-17, sector 22 [ 9707.148283] end_request: I/O error, dev dm-8, sector 789 [ 9707.148287] end_request: I/O error, dev dm-17, sector 23 [ 9707.148291] end_request: I/O error, dev dm-8, sector 790 [ 9707.148296] end_request: I/O error, dev dm-17, sector 0 [ 9707.148302] end_request: I/O error, dev dm-8, sector 791 [ 9707.148303] end_request: I/O error, dev dm-17, sector 1 [ 9707.148309] end_request: I/O error, dev dm-5, sector 2 [ 9707.148311] end_request: I/O error, dev dm-17, sector 2 [ 9707.148318] end_request: I/O error, dev dm-17, sector 3 [ 9707.148320] end_request: I/O error, dev dm-8, sector 784 [ 9707.148325] end_request: I/O error, dev dm-17, sector 4 [ 9707.148331] end_request: I/O error, dev dm-8, sector 785 [ 9707.148333] end_request: I/O error, dev dm-17, sector 5 [ 9707.148337] end_request: I/O error, dev dm-5, sector 3 [ 9707.148340] end_request: I/O error, dev dm-17, sector 6 [ 9707.148343] end_request: I/O error, dev dm-5, sector 4 [ 9707.148345] end_request: I/O error, dev dm-8, sector 786 [ 9707.148349] end_request: I/O error, dev dm-17, sector 7 [ 9707.148352] end_request: I/O error, dev dm-8, sector 787 [ 9707.148357] end_request: I/O error, dev dm-17, sector 0 [ 9707.148359] end_request: I/O error, dev dm-5, sector 5 [ 9707.148369] end_request: I/O error, dev dm-8, sector 788 [ 9707.148370] end_request: I/O error, dev dm-5, sector 6 [ 9707.148372] end_request: I/O error, dev dm-17, sector 1 [ 9707.148377] end_request: I/O error, dev dm-5, sector 7 [ 9707.148379] end_request: I/O error, dev dm-17, sector 2 [ 9707.148386] end_request: I/O error, dev dm-5, sector 0 [ 9707.148388] end_request: I/O error, dev dm-17, sector 3 [ 9707.148394] end_request: I/O error, dev dm-5, sector 1 [ 9707.148396] end_request: I/O error, dev dm-17, sector 4 [ 9707.148401] end_request: I/O error, dev dm-5, sector 2 [ 9707.148403] end_request: I/O error, dev dm-17, sector 5 [ 9707.148409] end_request: I/O error, dev dm-5, sector 3 [ 9707.148411] end_request: I/O error, dev dm-17, sector 6 [ 9707.148418] end_request: I/O error, dev dm-17, sector 7 [ 9707.148419] end_request: I/O error, dev dm-5, sector 4 [ 9707.148423] end_request: I/O error, dev dm-8, sector 789 [ 9707.148426] end_request: I/O error, dev dm-5, sector 5 [ 9707.148432] end_request: I/O error, dev dm-5, sector 6 [ 9707.148435] end_request: I/O error, dev dm-17, sector 8 [ 9707.148439] end_request: I/O error, dev dm-5, sector 7 [ 9707.148442] end_request: I/O error, dev dm-17, sector 9 [ 9707.148448] end_request: I/O error, dev dm-5, sector 0 [ 9707.148450] end_request: I/O error, dev dm-17, sector 10 [ 9707.148456] end_request: I/O error, dev dm-5, sector 1 [ 9707.148457] end_request: I/O error, dev dm-17, sector 11 [ 9707.148462] end_request: I/O error, dev dm-5, sector 2 [ 9707.148464] end_request: I/O error, dev dm-17, sector 12 [ 9707.148469] end_request: I/O error, dev dm-5, sector 3 [ 9707.148471] end_request: I/O error, dev dm-17, sector 13 [ 9707.148475] end_request: I/O error, dev dm-5, sector 4 [ 9707.148478] end_request: I/O error, dev dm-17, sector 14 [ 9707.148483] end_request: I/O error, dev dm-5, sector 5 [ 9707.148485] end_request: I/O error, dev dm-17, sector 15 [ 9707.148494] end_request: I/O error, dev dm-17, sector 16 [ 9707.148498] end_request: I/O error, dev dm-5, sector 6 [ 9707.148499] end_request: I/O error, dev dm-8, sector 790 [ 9707.148503] end_request: I/O error, dev dm-17, sector 17 [ 9707.148507] end_request: I/O error, dev dm-5, sector 7 [ 9707.148509] end_request: I/O error, dev dm-8, sector 791 [ 9707.148512] end_request: I/O error, dev dm-17, sector 18 [ 9707.148518] end_request: I/O error, dev dm-8, sector 0 [ 9707.148520] end_request: I/O error, dev dm-17, sector 19 [ 9707.148527] end_request: I/O error, dev dm-17, sector 20 [ 9707.148533] end_request: I/O error, dev dm-5, sector 0 [ 9707.148535] end_request: I/O error, dev dm-17, sector 21 [ 9707.148538] end_request: I/O error, dev dm-8, sector 1 [ 9707.148543] end_request: I/O error, dev dm-17, sector 22 [ 9707.148546] end_request: I/O error, dev dm-8, sector 2 [ 9707.148549] end_request: I/O error, dev dm-5, sector 1 [ 9707.148554] end_request: I/O error, dev dm-17, sector 23 [ 9707.148557] end_request: I/O error, dev dm-8, sector 3 [ 9707.148560] end_request: I/O error, dev dm-5, sector 2 [ 9707.148563] end_request: I/O error, dev dm-8, sector 4 [ 9707.148570] end_request: I/O error, dev dm-17, sector 0 [ 9707.148571] end_request: I/O error, dev dm-5, sector 3 [ 9707.148578] end_request: I/O error, dev dm-5, sector 4 [ 9707.148580] end_request: I/O error, dev dm-8, sector 5 [ 9707.148582] end_request: I/O error, dev dm-17, sector 1 [ 9707.148589] end_request: I/O error, dev dm-17, sector 2 [ 9707.148591] end_request: I/O error, dev dm-5, sector 5 [ 9707.148596] end_request: I/O error, dev dm-17, sector 3 [ 9707.148599] end_request: I/O error, dev dm-5, sector 6 [ 9707.148601] end_request: I/O error, dev dm-8, sector 6 [ 9707.148607] end_request: I/O error, dev dm-5, sector 7 [ 9707.148610] end_request: I/O error, dev dm-17, sector 4 [ 9707.148611] end_request: I/O error, dev dm-8, sector 7 [ 9707.148617] end_request: I/O error, dev dm-17, sector 5 [ 9707.148620] end_request: I/O error, dev dm-8, sector 0 [ 9707.148627] end_request: I/O error, dev dm-5, sector 0 [ 9707.148630] end_request: I/O error, dev dm-17, sector 6 [ 9707.148636] end_request: I/O error, dev dm-17, sector 7 [ 9707.148642] end_request: I/O error, dev dm-5, sector 1 [ 9707.148644] end_request: I/O error, dev dm-8, sector 1 [ 9707.148650] end_request: I/O error, dev dm-5, sector 2 [ 9707.148656] end_request: I/O error, dev dm-8, sector 2 [ 9707.148661] end_request: I/O error, dev dm-5, sector 3 [ 9707.148663] end_request: I/O error, dev dm-17, sector 0 [ 9707.148671] end_request: I/O error, dev dm-17, sector 1 [ 9707.148673] end_request: I/O error, dev dm-8, sector 3 [ 9707.148678] end_request: I/O error, dev dm-17, sector 2 [ 9707.148686] end_request: I/O error, dev dm-17, sector 3 [ 9707.148687] end_request: I/O error, dev dm-8, sector 4 [ 9707.148695] end_request: I/O error, dev dm-5, sector 4 [ 9707.148696] end_request: I/O error, dev dm-8, sector 5 [ 9707.148698] end_request: I/O error, dev dm-17, sector 4 [ 9707.148705] end_request: I/O error, dev dm-17, sector 5 [ 9707.148708] end_request: I/O error, dev dm-8, sector 6 [ 9707.148720] end_request: I/O error, dev dm-17, sector 6 [ 9707.148722] end_request: I/O error, dev dm-8, sector 7 [ 9707.148724] end_request: I/O error, dev dm-5, sector 5 [ 9707.148733] end_request: I/O error, dev dm-5, sector 6 [ 9707.148735] end_request: I/O error, dev dm-17, sector 7 [ 9707.148738] end_request: I/O error, dev dm-8, sector 0 [ 9707.148744] end_request: I/O error, dev dm-17, sector 0 [ 9707.148747] end_request: I/O error, dev dm-5, sector 7 [ 9707.148749] end_request: I/O error, dev dm-8, sector 1 [ 9707.148753] end_request: I/O error, dev dm-17, sector 1 [ 9707.148756] end_request: I/O error, dev dm-8, sector 2 [ 9707.148761] end_request: I/O error, dev dm-5, sector 0 [ 9707.148763] end_request: I/O error, dev dm-17, sector 2 [ 9707.148768] end_request: I/O error, dev dm-5, sector 1 [ 9707.148770] end_request: I/O error, dev dm-17, sector 3 [ 9707.148775] end_request: I/O error, dev dm-5, sector 2 [ 9707.148777] end_request: I/O error, dev dm-17, sector 4 [ 9707.148781] end_request: I/O error, dev dm-8, sector 3 [ 9707.148784] end_request: I/O error, dev dm-17, sector 5 [ 9707.148788] end_request: I/O error, dev dm-8, sector 4 [ 9707.148793] end_request: I/O error, dev dm-5, sector 3 [ 9707.148795] end_request: I/O error, dev dm-17, sector 6 [ 9707.148801] end_request: I/O error, dev dm-17, sector 7 [ 9707.148803] end_request: I/O error, dev dm-5, sector 4 [ 9707.148806] end_request: I/O error, dev dm-8, sector 5 [ 9707.148810] end_request: I/O error, dev dm-5, sector 5 [ 9707.148814] end_request: I/O error, dev dm-8, sector 6 [ 9707.148816] end_request: I/O error, dev dm-17, sector 0 [ 9707.148819] end_request: I/O error, dev dm-5, sector 6 [ 9707.148822] end_request: I/O error, dev dm-17, sector 1 [ 9707.148825] end_request: I/O error, dev dm-5, sector 7 [ 9707.148827] end_request: I/O error, dev dm-8, sector 7 [ 9707.148829] end_request: I/O error, dev dm-17, sector 2 [ 9707.148834] end_request: I/O error, dev dm-5, sector 0 [ 9707.148836] end_request: I/O error, dev dm-8, sector 0 [ 9707.148838] end_request: I/O error, dev dm-17, sector 3 [ 9707.148843] end_request: I/O error, dev dm-8, sector 1 [ 9707.148844] end_request: I/O error, dev dm-17, sector 4 [ 9707.148846] end_request: I/O error, dev dm-5, sector 1 [ 9707.148849] end_request: I/O error, dev dm-8, sector 2 [ 9707.148853] end_request: I/O error, dev dm-5, sector 2 [ 9707.148854] end_request: I/O error, dev dm-17, sector 5 [ 9707.148856] end_request: I/O error, dev dm-8, sector 3 [ 9707.148861] end_request: I/O error, dev dm-17, sector 6 [ 9707.148863] end_request: I/O error, dev dm-8, sector 4 [ 9707.148865] end_request: I/O error, dev dm-5, sector 3 [ 9707.148869] end_request: I/O error, dev dm-8, sector 5 [ 9707.148871] end_request: I/O error, dev dm-5, sector 4 [ 9707.148873] end_request: I/O error, dev dm-17, sector 7 [ 9707.148875] end_request: I/O error, dev dm-8, sector 6 [ 9707.148880] end_request: I/O error, dev dm-5, sector 5 [ 9707.148881] end_request: I/O error, dev dm-17, sector 0 [ 9707.148883] end_request: I/O error, dev dm-8, sector 7 [ 9707.148888] end_request: I/O error, dev dm-17, sector 1 [ 9707.148890] end_request: I/O error, dev dm-5, sector 6 [ 9707.148892] end_request: I/O error, dev dm-8, sector 0 [ 9707.148896] end_request: I/O error, dev dm-5, sector 7 [ 9707.148898] end_request: I/O error, dev dm-8, sector 1 [ 9707.148900] end_request: I/O error, dev dm-17, sector 2 [ 9707.148905] end_request: I/O error, dev dm-5, sector 0 [ 9707.148908] end_request: I/O error, dev dm-17, sector 3 [ 9707.148913] end_request: I/O error, dev dm-8, sector 2 [ 9707.148916] end_request: I/O error, dev dm-17, sector 4 [ 9707.148918] end_request: I/O error, dev dm-5, sector 1 [ 9707.148923] end_request: I/O error, dev dm-17, sector 5 [ 9707.148925] end_request: I/O error, dev dm-5, sector 2 [ 9707.148931] end_request: I/O error, dev dm-17, sector 6 [ 9707.148939] end_request: I/O error, dev dm-17, sector 7 [ 9707.148941] end_request: I/O error, dev dm-5, sector 3 [ 9707.148943] end_request: I/O error, dev dm-8, sector 3 [ 9707.148949] end_request: I/O error, dev dm-5, sector 4 [ 9707.148951] end_request: I/O error, dev dm-8, sector 4 [ 9707.148953] end_request: I/O error, dev dm-17, sector 0 [ 9707.148958] end_request: I/O error, dev dm-8, sector 5 [ 9707.148961] end_request: I/O error, dev dm-17, sector 1 [ 9707.148966] end_request: I/O error, dev dm-5, sector 5 [ 9707.148968] end_request: I/O error, dev dm-17, sector 2 [ 9707.148973] end_request: I/O error, dev dm-8, sector 6 [ 9707.148975] end_request: I/O error, dev dm-17, sector 3 [ 9707.148978] end_request: I/O error, dev dm-5, sector 6 [ 9707.148980] end_request: I/O error, dev dm-8, sector 7 [ 9707.148988] end_request: I/O error, dev dm-5, sector 7 [ 9707.148992] end_request: I/O error, dev dm-17, sector 4 [ 9707.148995] end_request: I/O error, dev dm-8, sector 16 [ 9707.149002] end_request: I/O error, dev dm-5, sector 0 [ 9707.149005] end_request: I/O error, dev dm-17, sector 5 [ 9707.149007] end_request: I/O error, dev dm-8, sector 17 [ 9707.149012] end_request: I/O error, dev dm-17, sector 6 [ 9707.149016] end_request: I/O error, dev dm-8, sector 18 [ 9707.149020] end_request: I/O error, dev dm-17, sector 7 [ 9707.149023] end_request: I/O error, dev dm-5, sector 1 [ 9707.149029] end_request: I/O error, dev dm-17, sector 8 [ 9707.149030] end_request: I/O error, dev dm-8, sector 19 [ 9707.149038] end_request: I/O error, dev dm-17, sector 9 [ 9707.149040] end_request: I/O error, dev dm-8, sector 20 [ 9707.149046] end_request: I/O error, dev dm-17, sector 10 [ 9707.149047] end_request: I/O error, dev dm-8, sector 21 [ 9707.149053] end_request: I/O error, dev dm-17, sector 11 [ 9707.149058] end_request: I/O error, dev dm-8, sector 22 [ 9707.149060] end_request: I/O error, dev dm-17, sector 12 [ 9707.149065] end_request: I/O error, dev dm-5, sector 2 [ 9707.149067] end_request: I/O error, dev dm-17, sector 13 [ 9707.149072] end_request: I/O error, dev dm-5, sector 3 [ 9707.149075] end_request: I/O error, dev dm-17, sector 14 [ 9707.149079] end_request: I/O error, dev dm-5, sector 4 [ 9707.149082] end_request: I/O error, dev dm-17, sector 15 [ 9707.149086] end_request: I/O error, dev dm-5, sector 5 [ 9707.149088] end_request: I/O error, dev dm-8, sector 23 [ 9707.149094] end_request: I/O error, dev dm-5, sector 6 [ 9707.149098] end_request: I/O error, dev dm-17, sector 128 [ 9707.149099] end_request: I/O error, dev dm-8, sector 0 [ 9707.149101] end_request: I/O error, dev dm-5, sector 7 [ 9707.149109] end_request: I/O error, dev dm-8, sector 1 [ 9707.149111] end_request: I/O error, dev dm-17, sector 129 [ 9707.149113] end_request: I/O error, dev dm-5, sector 0 [ 9707.149118] end_request: I/O error, dev dm-17, sector 130 [ 9707.149122] end_request: I/O error, dev dm-8, sector 2 [ 9707.149124] end_request: I/O error, dev dm-5, sector 1 [ 9707.149128] end_request: I/O error, dev dm-17, sector 131 [ 9707.149131] end_request: I/O error, dev dm-5, sector 2 [ 9707.149135] end_request: I/O error, dev dm-17, sector 132 [ 9707.149138] end_request: I/O error, dev dm-5, sector 3 [ 9707.149143] end_request: I/O error, dev dm-17, sector 133 [ 9707.149145] end_request: I/O error, dev dm-5, sector 4 [ 9707.149150] end_request: I/O error, dev dm-17, sector 134 [ 9707.149153] end_request: I/O error, dev dm-5, sector 5 [ 9707.149158] end_request: I/O error, dev dm-17, sector 135 [ 9707.149162] end_request: I/O error, dev dm-5, sector 6 [ 9707.149164] end_request: I/O error, dev dm-8, sector 3 [ 9707.149171] end_request: I/O error, dev dm-5, sector 7 [ 9707.149175] end_request: I/O error, dev dm-17, sector 0 [ 9707.149176] end_request: I/O error, dev dm-8, sector 4 [ 9707.149181] end_request: I/O error, dev dm-17, sector 1 [ 9707.149184] end_request: I/O error, dev dm-8, sector 5 [ 9707.149187] end_request: I/O error, dev dm-5, sector 0 [ 9707.149192] end_request: I/O error, dev dm-17, sector 2 [ 9707.149196] end_request: I/O error, dev dm-8, sector 6 [ 9707.149202] end_request: I/O error, dev dm-5, sector 1 [ 9707.149204] end_request: I/O error, dev dm-17, sector 3 [ 9707.149208] end_request: I/O error, dev dm-5, sector 2 [ 9707.149211] end_request: I/O error, dev dm-17, sector 4 [ 9707.149215] end_request: I/O error, dev dm-5, sector 3 [ 9707.149218] end_request: I/O error, dev dm-17, sector 5 [ 9707.149226] end_request: I/O error, dev dm-17, sector 6 [ 9707.149228] end_request: I/O error, dev dm-5, sector 4 [ 9707.149233] end_request: I/O error, dev dm-17, sector 7 [ 9707.149236] end_request: I/O error, dev dm-5, sector 5 [ 9707.149240] end_request: I/O error, dev dm-8, sector 7 [ 9707.149245] end_request: I/O error, dev dm-17, sector 0 [ 9707.149247] end_request: I/O error, dev dm-5, sector 6 [ 9707.149256] end_request: I/O error, dev dm-17, sector 1 [ 9707.149258] end_request: I/O error, dev dm-5, sector 7 [ 9707.149262] end_request: I/O error, dev dm-8, sector 0 [ 9707.149270] end_request: I/O error, dev dm-17, sector 2 [ 9707.149271] end_request: I/O error, dev dm-5, sector 128 [ 9707.149277] end_request: I/O error, dev dm-8, sector 1 [ 9707.149279] end_request: I/O error, dev dm-5, sector 129 [ 9707.149282] end_request: I/O error, dev dm-17, sector 3 [ 9707.149285] end_request: I/O error, dev dm-5, sector 130 [ 9707.149289] end_request: I/O error, dev dm-17, sector 4 [ 9707.149293] end_request: I/O error, dev dm-5, sector 131 [ 9707.149296] end_request: I/O error, dev dm-8, sector 2 [ 9707.149299] end_request: I/O error, dev dm-17, sector 5 [ 9707.149306] end_request: I/O error, dev dm-8, sector 3 [ 9707.149308] end_request: I/O error, dev dm-17, sector 6 [ 9707.149310] end_request: I/O error, dev dm-5, sector 132 [ 9707.149315] end_request: I/O error, dev dm-17, sector 7 [ 9707.149318] end_request: I/O error, dev dm-5, sector 133 [ 9707.149324] end_request: I/O error, dev dm-5, sector 134 [ 9707.149326] end_request: I/O error, dev dm-17, sector 4096 [ 9707.149329] end_request: I/O error, dev dm-8, sector 4 [ 9707.149334] end_request: I/O error, dev dm-17, sector 4097 [ 9707.149336] end_request: I/O error, dev dm-8, sector 5 [ 9707.149341] end_request: I/O error, dev dm-17, sector 4098 [ 9707.149343] end_request: I/O error, dev dm-8, sector 6 [ 9707.149349] end_request: I/O error, dev dm-17, sector 4099 [ 9707.149356] end_request: I/O error, dev dm-5, sector 135 [ 9707.149358] end_request: I/O error, dev dm-8, sector 7 [ 9707.149362] end_request: I/O error, dev dm-17, sector 4100 [ 9707.149369] end_request: I/O error, dev dm-17, sector 4101 [ 9707.149374] end_request: I/O error, dev dm-8, sector 0 [ 9707.149376] end_request: I/O error, dev dm-5, sector 128 [ 9707.149379] end_request: I/O error, dev dm-17, sector 4102 [ 9707.149382] end_request: I/O error, dev dm-5, sector 129 [ 9707.149384] end_request: I/O error, dev dm-8, sector 1 [ 9707.149390] end_request: I/O error, dev dm-17, sector 4103 [ 9707.149392] end_request: I/O error, dev dm-8, sector 2 [ 9707.149396] end_request: I/O error, dev dm-5, sector 130 [ 9707.149403] end_request: I/O error, dev dm-8, sector 3 [ 9707.149404] end_request: I/O error, dev dm-5, sector 131 [ 9707.149410] end_request: I/O error, dev dm-5, sector 132 [ 9707.149416] end_request: I/O error, dev dm-5, sector 133 [ 9707.149423] end_request: I/O error, dev dm-5, sector 134 [ 9707.149431] end_request: I/O error, dev dm-5, sector 135 [ 9707.149433] end_request: I/O error, dev dm-8, sector 4 [ 9707.149440] end_request: I/O error, dev dm-8, sector 5 [ 9707.149445] end_request: I/O error, dev dm-5, sector 16 [ 9707.149452] end_request: I/O error, dev dm-5, sector 17 [ 9707.149458] end_request: I/O error, dev dm-5, sector 18 [ 9707.149466] end_request: I/O error, dev dm-5, sector 19 [ 9707.149467] end_request: I/O error, dev dm-8, sector 6 [ 9707.149475] end_request: I/O error, dev dm-8, sector 7 [ 9707.149476] end_request: I/O error, dev dm-5, sector 20 [ 9707.149483] end_request: I/O error, dev dm-5, sector 21 [ 9707.149490] end_request: I/O error, dev dm-5, sector 22 [ 9707.149493] end_request: I/O error, dev dm-8, sector 0 [ 9707.149498] end_request: I/O error, dev dm-5, sector 23 [ 9707.149503] end_request: I/O error, dev dm-8, sector 1 [ 9707.149514] end_request: I/O error, dev dm-5, sector 0 [ 9707.149515] end_request: I/O error, dev dm-8, sector 2 [ 9707.149522] end_request: I/O error, dev dm-8, sector 3 [ 9707.149528] end_request: I/O error, dev dm-8, sector 4 [ 9707.149534] end_request: I/O error, dev dm-5, sector 1 [ 9707.149539] end_request: I/O error, dev dm-8, sector 5 [ 9707.149544] end_request: I/O error, dev dm-5, sector 2 [ 9707.149546] end_request: I/O error, dev dm-8, sector 6 [ 9707.149550] end_request: I/O error, dev dm-5, sector 3 [ 9707.149552] end_request: I/O error, dev dm-8, sector 7 [ 9707.149557] end_request: I/O error, dev dm-5, sector 4 [ 9707.149560] end_request: I/O error, dev dm-8, sector 0 [ 9707.149563] end_request: I/O error, dev dm-5, sector 5 [ 9707.149567] end_request: I/O error, dev dm-8, sector 1 [ 9707.149569] end_request: I/O error, dev dm-5, sector 6 [ 9707.149573] end_request: I/O error, dev dm-8, sector 2 [ 9707.149575] end_request: I/O error, dev dm-5, sector 7 [ 9707.149580] end_request: I/O error, dev dm-8, sector 3 [ 9707.149583] end_request: I/O error, dev dm-5, sector 0 [ 9707.149586] end_request: I/O error, dev dm-8, sector 4 [ 9707.149590] end_request: I/O error, dev dm-5, sector 1 [ 9707.149592] end_request: I/O error, dev dm-8, sector 5 [ 9707.149596] end_request: I/O error, dev dm-5, sector 2 [ 9707.149599] end_request: I/O error, dev dm-8, sector 6 [ 9707.149606] end_request: I/O error, dev dm-5, sector 3 [ 9707.149608] end_request: I/O error, dev dm-8, sector 7 [ 9707.149613] end_request: I/O error, dev dm-5, sector 4 [ 9707.149625] end_request: I/O error, dev dm-5, sector 5 [ 9707.149627] end_request: I/O error, dev dm-8, sector 0 [ 9707.149636] end_request: I/O error, dev dm-8, sector 1 [ 9707.149642] end_request: I/O error, dev dm-5, sector 6 [ 9707.149651] end_request: I/O error, dev dm-5, sector 7 [ 9707.149660] end_request: I/O error, dev dm-8, sector 2 [ 9707.149673] end_request: I/O error, dev dm-5, sector 8 [ 9707.149675] end_request: I/O error, dev dm-8, sector 3 [ 9707.149682] end_request: I/O error, dev dm-8, sector 4 [ 9707.149689] end_request: I/O error, dev dm-5, sector 9 [ 9707.149697] end_request: I/O error, dev dm-8, sector 5 [ 9707.149706] end_request: I/O error, dev dm-5, sector 10 [ 9707.149709] end_request: I/O error, dev dm-5, sector 11 [ 9707.149712] end_request: I/O error, dev dm-5, sector 12 [ 9707.149714] end_request: I/O error, dev dm-5, sector 13 [ 9707.149717] end_request: I/O error, dev dm-5, sector 14 [ 9707.149719] end_request: I/O error, dev dm-5, sector 15 [ 9707.149735] end_request: I/O error, dev dm-8, sector 6 [ 9707.149738] end_request: I/O error, dev dm-5, sector 16 [ 9707.149749] end_request: I/O error, dev dm-5, sector 17 [ 9707.149752] end_request: I/O error, dev dm-8, sector 7 [ 9707.149763] end_request: I/O error, dev dm-5, sector 18 [ 9707.149776] end_request: I/O error, dev dm-8, sector 0 [ 9707.149778] end_request: I/O error, dev dm-5, sector 19 [ 9707.149784] end_request: I/O error, dev dm-5, sector 20 [ 9707.149790] end_request: I/O error, dev dm-5, sector 21 [ 9707.149797] end_request: I/O error, dev dm-5, sector 22 [ 9707.149805] end_request: I/O error, dev dm-5, sector 23 [ 9707.149810] end_request: I/O error, dev dm-8, sector 1 [ 9707.149819] end_request: I/O error, dev dm-8, sector 2 [ 9707.149821] end_request: I/O error, dev dm-5, sector 0 [ 9707.149833] end_request: I/O error, dev dm-5, sector 1 [ 9707.149834] end_request: I/O error, dev dm-8, sector 3 [ 9707.149842] end_request: I/O error, dev dm-8, sector 4 [ 9707.149844] end_request: I/O error, dev dm-5, sector 2 [ 9707.149850] end_request: I/O error, dev dm-5, sector 3 [ 9707.149852] end_request: I/O error, dev dm-8, sector 5 [ 9707.149859] end_request: I/O error, dev dm-5, sector 4 [ 9707.149862] end_request: I/O error, dev dm-8, sector 6 [ 9707.149871] end_request: I/O error, dev dm-5, sector 5 [ 9707.149873] end_request: I/O error, dev dm-8, sector 7 [ 9707.149879] end_request: I/O error, dev dm-5, sector 6 [ 9707.149891] end_request: I/O error, dev dm-5, sector 7 [ 9707.149892] end_request: I/O error, dev dm-8, sector 0 [ 9707.149903] end_request: I/O error, dev dm-8, sector 1 [ 9707.149906] end_request: I/O error, dev dm-5, sector 0 [ 9707.149910] end_request: I/O error, dev dm-8, sector 2 [ 9707.149914] end_request: I/O error, dev dm-5, sector 1 [ 9707.149918] end_request: I/O error, dev dm-8, sector 3 [ 9707.149921] end_request: I/O error, dev dm-5, sector 2 [ 9707.149929] end_request: I/O error, dev dm-5, sector 3 [ 9707.149940] end_request: I/O error, dev dm-5, sector 4 [ 9707.149942] end_request: I/O error, dev dm-8, sector 4 [ 9707.149952] end_request: I/O error, dev dm-8, sector 5 [ 9707.149954] end_request: I/O error, dev dm-5, sector 5 [ 9707.149960] end_request: I/O error, dev dm-5, sector 6 [ 9707.149967] end_request: I/O error, dev dm-5, sector 7 [ 9707.149977] end_request: I/O error, dev dm-5, sector 0 [ 9707.149983] end_request: I/O error, dev dm-5, sector 1 [ 9707.149992] end_request: I/O error, dev dm-5, sector 2 [ 9707.149998] end_request: I/O error, dev dm-8, sector 6 [ 9707.150006] end_request: I/O error, dev dm-5, sector 3 [ 9707.150012] end_request: I/O error, dev dm-5, sector 4 [ 9707.150019] end_request: I/O error, dev dm-5, sector 5 [ 9707.150023] end_request: I/O error, dev dm-8, sector 7 [ 9707.150030] end_request: I/O error, dev dm-5, sector 6 [ 9707.150031] end_request: I/O error, dev dm-8, sector 0 [ 9707.150038] end_request: I/O error, dev dm-8, sector 1 [ 9707.150039] end_request: I/O error, dev dm-5, sector 7 [ 9707.150045] end_request: I/O error, dev dm-8, sector 2 [ 9707.150048] end_request: I/O error, dev dm-5, sector 0 [ 9707.150051] end_request: I/O error, dev dm-8, sector 3 [ 9707.150054] end_request: I/O error, dev dm-5, sector 1 [ 9707.150058] end_request: I/O error, dev dm-8, sector 4 [ 9707.150061] end_request: I/O error, dev dm-5, sector 2 [ 9707.150064] end_request: I/O error, dev dm-8, sector 5 [ 9707.150067] end_request: I/O error, dev dm-5, sector 3 [ 9707.150070] end_request: I/O error, dev dm-8, sector 6 [ 9707.150073] end_request: I/O error, dev dm-5, sector 4 [ 9707.150076] end_request: I/O error, dev dm-8, sector 7 [ 9707.150079] end_request: I/O error, dev dm-5, sector 5 [ 9707.150085] end_request: I/O error, dev dm-8, sector 0 [ 9707.150086] end_request: I/O error, dev dm-5, sector 6 [ 9707.150091] end_request: I/O error, dev dm-5, sector 7 [ 9707.150093] end_request: I/O error, dev dm-8, sector 1 [ 9707.150103] end_request: I/O error, dev dm-5, sector 0 [ 9707.150109] end_request: I/O error, dev dm-8, sector 2 [ 9707.150111] end_request: I/O error, dev dm-5, sector 1 [ 9707.150118] end_request: I/O error, dev dm-5, sector 2 [ 9707.150128] end_request: I/O error, dev dm-5, sector 3 [ 9707.150130] end_request: I/O error, dev dm-8, sector 3 [ 9707.150141] end_request: I/O error, dev dm-5, sector 4 [ 9707.150143] end_request: I/O error, dev dm-8, sector 4 [ 9707.150149] end_request: I/O error, dev dm-8, sector 5 [ 9707.150152] end_request: I/O error, dev dm-5, sector 5 [ 9707.150158] end_request: I/O error, dev dm-5, sector 6 [ 9707.150164] end_request: I/O error, dev dm-5, sector 7 [ 9707.150173] end_request: I/O error, dev dm-8, sector 6 [ 9707.150176] end_request: I/O error, dev dm-5, sector 0 [ 9707.150182] end_request: I/O error, dev dm-5, sector 1 [ 9707.150189] end_request: I/O error, dev dm-8, sector 7 [ 9707.150191] end_request: I/O error, dev dm-5, sector 2 [ 9707.150198] end_request: I/O error, dev dm-5, sector 3 [ 9707.150204] end_request: I/O error, dev dm-5, sector 4 [ 9707.150210] end_request: I/O error, dev dm-5, sector 5 [ 9707.150217] end_request: I/O error, dev dm-5, sector 6 [ 9707.150223] end_request: I/O error, dev dm-5, sector 7 [ 9707.150226] end_request: I/O error, dev dm-8, sector 0 [ 9707.150233] end_request: I/O error, dev dm-5, sector 8 [ 9707.150239] end_request: I/O error, dev dm-8, sector 1 [ 9707.150244] end_request: I/O error, dev dm-5, sector 9 [ 9707.150250] end_request: I/O error, dev dm-5, sector 10 [ 9707.150257] end_request: I/O error, dev dm-5, sector 11 [ 9707.150262] end_request: I/O error, dev dm-8, sector 2 [ 9707.150264] end_request: I/O error, dev dm-5, sector 12 [ 9707.150270] end_request: I/O error, dev dm-5, sector 13 [ 9707.150276] end_request: I/O error, dev dm-5, sector 14 [ 9707.150285] end_request: I/O error, dev dm-5, sector 15 [ 9707.150294] end_request: I/O error, dev dm-5, sector 128 [ 9707.150300] end_request: I/O error, dev dm-5, sector 129 [ 9707.150307] end_request: I/O error, dev dm-5, sector 130 [ 9707.150309] end_request: I/O error, dev dm-8, sector 3 [ 9707.150319] end_request: I/O error, dev dm-8, sector 4 [ 9707.150326] end_request: I/O error, dev dm-5, sector 131 [ 9707.150331] end_request: I/O error, dev dm-8, sector 5 [ 9707.150335] end_request: I/O error, dev dm-5, sector 132 [ 9707.150341] end_request: I/O error, dev dm-5, sector 133 [ 9707.150347] end_request: I/O error, dev dm-5, sector 134 [ 9707.150356] end_request: I/O error, dev dm-5, sector 135 [ 9707.150358] end_request: I/O error, dev dm-8, sector 6 [ 9707.150365] end_request: I/O error, dev dm-5, sector 0 [ 9707.150368] end_request: I/O error, dev dm-8, sector 7 [ 9707.150378] end_request: I/O error, dev dm-5, sector 1 [ 9707.150381] end_request: I/O error, dev dm-8, sector 0 [ 9707.150390] end_request: I/O error, dev dm-5, sector 2 [ 9707.150392] end_request: I/O error, dev dm-8, sector 1 [ 9707.150398] end_request: I/O error, dev dm-8, sector 2 [ 9707.150400] end_request: I/O error, dev dm-5, sector 3 [ 9707.150407] end_request: I/O error, dev dm-5, sector 4 [ 9707.150418] end_request: I/O error, dev dm-5, sector 5 [ 9707.150421] end_request: I/O error, dev dm-8, sector 3 [ 9707.150430] end_request: I/O error, dev dm-5, sector 6 [ 9707.150431] end_request: I/O error, dev dm-8, sector 4 [ 9707.150437] end_request: I/O error, dev dm-8, sector 5 [ 9707.150438] end_request: I/O error, dev dm-5, sector 7 [ 9707.150447] end_request: I/O error, dev dm-5, sector 0 [ 9707.150453] end_request: I/O error, dev dm-8, sector 6 [ 9707.150455] end_request: I/O error, dev dm-5, sector 1 [ 9707.150461] end_request: I/O error, dev dm-5, sector 2 [ 9707.150465] end_request: I/O error, dev dm-8, sector 7 [ 9707.150467] end_request: I/O error, dev dm-5, sector 3 [ 9707.150473] end_request: I/O error, dev dm-5, sector 4 [ 9707.150474] end_request: I/O error, dev dm-8, sector 128 [ 9707.150480] end_request: I/O error, dev dm-5, sector 5 [ 9707.150482] end_request: I/O error, dev dm-8, sector 129 [ 9707.150486] end_request: I/O error, dev dm-5, sector 6 [ 9707.150488] end_request: I/O error, dev dm-8, sector 130 [ 9707.150492] end_request: I/O error, dev dm-5, sector 7 [ 9707.150495] end_request: I/O error, dev dm-8, sector 131 [ 9707.150501] end_request: I/O error, dev dm-8, sector 132 [ 9707.150506] end_request: I/O error, dev dm-5, sector 4096 [ 9707.150507] end_request: I/O error, dev dm-8, sector 133 [ 9707.150513] end_request: I/O error, dev dm-8, sector 134 [ 9707.150515] end_request: I/O error, dev dm-5, sector 4097 [ 9707.150520] end_request: I/O error, dev dm-5, sector 4098 [ 9707.150522] end_request: I/O error, dev dm-8, sector 135 [ 9707.150528] end_request: I/O error, dev dm-5, sector 4099 [ 9707.150530] end_request: I/O error, dev dm-8, sector 128 [ 9707.150537] end_request: I/O error, dev dm-5, sector 4100 [ 9707.150546] end_request: I/O error, dev dm-8, sector 129 [ 9707.150548] end_request: I/O error, dev dm-5, sector 4101 [ 9707.150555] end_request: I/O error, dev dm-5, sector 4102 [ 9707.150563] end_request: I/O error, dev dm-5, sector 4103 [ 9707.150565] end_request: I/O error, dev dm-8, sector 130 [ 9707.150590] end_request: I/O error, dev dm-8, sector 131 [ 9707.150613] end_request: I/O error, dev dm-8, sector 132 [ 9707.150658] end_request: I/O error, dev dm-8, sector 133 [ 9707.150665] end_request: I/O error, dev dm-8, sector 134 [ 9707.150685] end_request: I/O error, dev dm-8, sector 135 [ 9707.150696] end_request: I/O error, dev dm-8, sector 16 [ 9707.150708] end_request: I/O error, dev dm-8, sector 17 [ 9707.150715] end_request: I/O error, dev dm-8, sector 18 [ 9707.150728] end_request: I/O error, dev dm-8, sector 19 [ 9707.150746] end_request: I/O error, dev dm-8, sector 20 [ 9707.150758] end_request: I/O error, dev dm-8, sector 21 [ 9707.150771] end_request: I/O error, dev dm-8, sector 22 [ 9707.150790] end_request: I/O error, dev dm-8, sector 23 [ 9707.150802] end_request: I/O error, dev dm-8, sector 0 [ 9707.150809] end_request: I/O error, dev dm-8, sector 1 [ 9707.150815] end_request: I/O error, dev dm-8, sector 2 [ 9707.150821] end_request: I/O error, dev dm-8, sector 3 [ 9707.150827] end_request: I/O error, dev dm-8, sector 4 [ 9707.150833] end_request: I/O error, dev dm-8, sector 5 [ 9707.150839] end_request: I/O error, dev dm-8, sector 6 [ 9707.150845] end_request: I/O error, dev dm-8, sector 7 [ 9707.150853] end_request: I/O error, dev dm-8, sector 0 [ 9707.150860] end_request: I/O error, dev dm-8, sector 1 [ 9707.150872] end_request: I/O error, dev dm-8, sector 2 [ 9707.150879] end_request: I/O error, dev dm-8, sector 3 [ 9707.150896] end_request: I/O error, dev dm-8, sector 4 [ 9707.150906] end_request: I/O error, dev dm-8, sector 5 [ 9707.150926] end_request: I/O error, dev dm-8, sector 6 [ 9707.150936] end_request: I/O error, dev dm-8, sector 7 [ 9707.150946] end_request: I/O error, dev dm-8, sector 8 [ 9707.150954] end_request: I/O error, dev dm-8, sector 9 [ 9707.150971] end_request: I/O error, dev dm-8, sector 10 [ 9707.150999] end_request: I/O error, dev dm-8, sector 11 [ 9707.151016] end_request: I/O error, dev dm-8, sector 12 [ 9707.151033] end_request: I/O error, dev dm-8, sector 13 [ 9707.151045] end_request: I/O error, dev dm-8, sector 14 [ 9707.151057] end_request: I/O error, dev dm-8, sector 15 [ 9707.151078] end_request: I/O error, dev dm-8, sector 16 [ 9707.151085] end_request: I/O error, dev dm-8, sector 17 [ 9707.151092] end_request: I/O error, dev dm-8, sector 18 [ 9707.151098] end_request: I/O error, dev dm-8, sector 19 [ 9707.151104] end_request: I/O error, dev dm-8, sector 20 [ 9707.151110] end_request: I/O error, dev dm-8, sector 21 [ 9707.151116] end_request: I/O error, dev dm-8, sector 22 [ 9707.151122] end_request: I/O error, dev dm-8, sector 23 [ 9707.151130] end_request: I/O error, dev dm-8, sector 0 [ 9707.151136] end_request: I/O error, dev dm-8, sector 1 [ 9707.151142] end_request: I/O error, dev dm-8, sector 2 [ 9707.151148] end_request: I/O error, dev dm-8, sector 3 [ 9707.151154] end_request: I/O error, dev dm-8, sector 4 [ 9707.151169] end_request: I/O error, dev dm-8, sector 5 [ 9707.151183] end_request: I/O error, dev dm-8, sector 6 [ 9707.151196] end_request: I/O error, dev dm-8, sector 7 [ 9707.151207] end_request: I/O error, dev dm-8, sector 0 [ 9707.151216] end_request: I/O error, dev dm-8, sector 1 [ 9707.151232] end_request: I/O error, dev dm-8, sector 2 [ 9707.151242] end_request: I/O error, dev dm-8, sector 3 [ 9707.151273] end_request: I/O error, dev dm-8, sector 4 [ 9707.151302] end_request: I/O error, dev dm-8, sector 5 [ 9707.151316] end_request: I/O error, dev dm-8, sector 6 [ 9707.151343] end_request: I/O error, dev dm-8, sector 7 [ 9707.151355] end_request: I/O error, dev dm-8, sector 0 [ 9707.151368] end_request: I/O error, dev dm-8, sector 1 [ 9707.151396] end_request: I/O error, dev dm-8, sector 2 [ 9707.151408] end_request: I/O error, dev dm-8, sector 3 [ 9707.151414] end_request: I/O error, dev dm-8, sector 4 [ 9707.151420] end_request: I/O error, dev dm-8, sector 5 [ 9707.151426] end_request: I/O error, dev dm-8, sector 6 [ 9707.151432] end_request: I/O error, dev dm-8, sector 7 [ 9707.151440] end_request: I/O error, dev dm-8, sector 0 [ 9707.151446] end_request: I/O error, dev dm-8, sector 1 [ 9707.151452] end_request: I/O error, dev dm-8, sector 2 [ 9707.151458] end_request: I/O error, dev dm-8, sector 3 [ 9707.151464] end_request: I/O error, dev dm-8, sector 4 [ 9707.151470] end_request: I/O error, dev dm-8, sector 5 [ 9707.151478] end_request: I/O error, dev dm-8, sector 6 [ 9707.151486] end_request: I/O error, dev dm-8, sector 7 [ 9707.151495] end_request: I/O error, dev dm-8, sector 0 [ 9707.151520] end_request: I/O error, dev dm-8, sector 1 [ 9707.151543] end_request: I/O error, dev dm-8, sector 2 [ 9707.151551] end_request: I/O error, dev dm-8, sector 3 [ 9707.151569] end_request: I/O error, dev dm-8, sector 4 [ 9707.151582] end_request: I/O error, dev dm-8, sector 5 [ 9707.151591] end_request: I/O error, dev dm-8, sector 6 [ 9707.151606] end_request: I/O error, dev dm-8, sector 7 [ 9707.151622] end_request: I/O error, dev dm-8, sector 0 [ 9707.151632] end_request: I/O error, dev dm-8, sector 1 [ 9707.151654] end_request: I/O error, dev dm-8, sector 2 [ 9707.151669] end_request: I/O error, dev dm-8, sector 3 [ 9707.151681] end_request: I/O error, dev dm-8, sector 4 [ 9707.151695] end_request: I/O error, dev dm-8, sector 5 [ 9707.151701] end_request: I/O error, dev dm-8, sector 6 [ 9707.151707] end_request: I/O error, dev dm-8, sector 7 [ 9707.151716] end_request: I/O error, dev dm-8, sector 8 [ 9707.151722] end_request: I/O error, dev dm-8, sector 9 [ 9707.151728] end_request: I/O error, dev dm-8, sector 10 [ 9707.151734] end_request: I/O error, dev dm-8, sector 11 [ 9707.151740] end_request: I/O error, dev dm-8, sector 12 [ 9707.151746] end_request: I/O error, dev dm-8, sector 13 [ 9707.151752] end_request: I/O error, dev dm-8, sector 14 [ 9707.151758] end_request: I/O error, dev dm-8, sector 15 [ 9707.151766] end_request: I/O error, dev dm-8, sector 128 [ 9707.151790] end_request: I/O error, dev dm-8, sector 129 [ 9707.151805] end_request: I/O error, dev dm-8, sector 130 [ 9707.151815] end_request: I/O error, dev dm-8, sector 131 [ 9707.151837] end_request: I/O error, dev dm-8, sector 132 [ 9707.151846] end_request: I/O error, dev dm-8, sector 133 [ 9707.151872] end_request: I/O error, dev dm-8, sector 134 [ 9707.151881] end_request: I/O error, dev dm-8, sector 135 [ 9707.151902] end_request: I/O error, dev dm-8, sector 0 [ 9707.151925] end_request: I/O error, dev dm-8, sector 1 [ 9707.151946] end_request: I/O error, dev dm-8, sector 2 [ 9707.151959] end_request: I/O error, dev dm-8, sector 3 [ 9707.151968] end_request: I/O error, dev dm-8, sector 4 [ 9707.151977] end_request: I/O error, dev dm-8, sector 5 [ 9707.151989] end_request: I/O error, dev dm-8, sector 6 [ 9707.151998] end_request: I/O error, dev dm-8, sector 7 [ 9707.152006] end_request: I/O error, dev dm-8, sector 0 [ 9707.152013] end_request: I/O error, dev dm-8, sector 1 [ 9707.152019] end_request: I/O error, dev dm-8, sector 2 [ 9707.152025] end_request: I/O error, dev dm-8, sector 3 [ 9707.152030] end_request: I/O error, dev dm-8, sector 4 [ 9707.152036] end_request: I/O error, dev dm-8, sector 5 [ 9707.152042] end_request: I/O error, dev dm-8, sector 6 [ 9707.152048] end_request: I/O error, dev dm-8, sector 7 [ 9707.152058] end_request: I/O error, dev dm-8, sector 4096 [ 9707.152064] end_request: I/O error, dev dm-8, sector 4097 [ 9707.152073] end_request: I/O error, dev dm-8, sector 4098 [ 9707.152081] end_request: I/O error, dev dm-8, sector 4099 [ 9707.152091] end_request: I/O error, dev dm-8, sector 4100 [ 9707.152106] end_request: I/O error, dev dm-8, sector 4101 [ 9707.152115] end_request: I/O error, dev dm-8, sector 4102 [ 9707.152133] end_request: I/O error, dev dm-8, sector 4103 [ 9707.184511] end_request: I/O error, dev dm-4, sector 0 [ 9707.184523] end_request: I/O error, dev dm-4, sector 1 [ 9707.184530] end_request: I/O error, dev dm-4, sector 2 [ 9707.184537] end_request: I/O error, dev dm-4, sector 3 [ 9707.184543] end_request: I/O error, dev dm-4, sector 4 [ 9707.184549] end_request: I/O error, dev dm-4, sector 5 [ 9707.184555] end_request: I/O error, dev dm-4, sector 6 [ 9707.184561] end_request: I/O error, dev dm-4, sector 7 [ 9707.184576] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.184586] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.184599] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.184605] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.184612] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.184618] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.184624] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.184630] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.184639] end_request: I/O error, dev dm-4, sector 0 [ 9707.184645] end_request: I/O error, dev dm-4, sector 1 [ 9707.184651] end_request: I/O error, dev dm-4, sector 2 [ 9707.184657] end_request: I/O error, dev dm-4, sector 3 [ 9707.184663] end_request: I/O error, dev dm-4, sector 4 [ 9707.184669] end_request: I/O error, dev dm-4, sector 5 [ 9707.184675] end_request: I/O error, dev dm-4, sector 6 [ 9707.184681] end_request: I/O error, dev dm-4, sector 7 [ 9707.184697] end_request: I/O error, dev dm-4, sector 0 [ 9707.184704] end_request: I/O error, dev dm-4, sector 1 [ 9707.184710] end_request: I/O error, dev dm-4, sector 2 [ 9707.184716] end_request: I/O error, dev dm-4, sector 3 [ 9707.184722] end_request: I/O error, dev dm-4, sector 4 [ 9707.184728] end_request: I/O error, dev dm-4, sector 5 [ 9707.184734] end_request: I/O error, dev dm-4, sector 6 [ 9707.184739] end_request: I/O error, dev dm-4, sector 7 [ 9707.184749] end_request: I/O error, dev dm-4, sector 24 [ 9707.184755] end_request: I/O error, dev dm-4, sector 25 [ 9707.184761] end_request: I/O error, dev dm-4, sector 26 [ 9707.184767] end_request: I/O error, dev dm-4, sector 27 [ 9707.184773] end_request: I/O error, dev dm-4, sector 28 [ 9707.184779] end_request: I/O error, dev dm-4, sector 29 [ 9707.184785] end_request: I/O error, dev dm-4, sector 30 [ 9707.184791] end_request: I/O error, dev dm-4, sector 31 [ 9707.209178] end_request: I/O error, dev dm-4, sector 0 [ 9707.209190] end_request: I/O error, dev dm-4, sector 1 [ 9707.209197] end_request: I/O error, dev dm-4, sector 2 [ 9707.209203] end_request: I/O error, dev dm-4, sector 3 [ 9707.209209] end_request: I/O error, dev dm-4, sector 4 [ 9707.209215] end_request: I/O error, dev dm-4, sector 5 [ 9707.209221] end_request: I/O error, dev dm-4, sector 6 [ 9707.209226] end_request: I/O error, dev dm-4, sector 7 [ 9707.209237] end_request: I/O error, dev dm-4, sector 0 [ 9707.209243] end_request: I/O error, dev dm-4, sector 1 [ 9707.209249] end_request: I/O error, dev dm-4, sector 2 [ 9707.209255] end_request: I/O error, dev dm-4, sector 3 [ 9707.209262] end_request: I/O error, dev dm-4, sector 4 [ 9707.209273] end_request: I/O error, dev dm-4, sector 5 [ 9707.209284] end_request: I/O error, dev dm-4, sector 6 [ 9707.209293] end_request: I/O error, dev dm-4, sector 7 [ 9707.209302] end_request: I/O error, dev dm-4, sector 0 [ 9707.209308] end_request: I/O error, dev dm-4, sector 1 [ 9707.209314] end_request: I/O error, dev dm-4, sector 2 [ 9707.209320] end_request: I/O error, dev dm-4, sector 3 [ 9707.209325] end_request: I/O error, dev dm-4, sector 4 [ 9707.209331] end_request: I/O error, dev dm-4, sector 5 [ 9707.209338] end_request: I/O error, dev dm-4, sector 6 [ 9707.209343] end_request: I/O error, dev dm-4, sector 7 [ 9707.209351] end_request: I/O error, dev dm-4, sector 0 [ 9707.209357] end_request: I/O error, dev dm-4, sector 1 [ 9707.209367] end_request: I/O error, dev dm-4, sector 2 [ 9707.209378] end_request: I/O error, dev dm-4, sector 3 [ 9707.209388] end_request: I/O error, dev dm-4, sector 4 [ 9707.209394] end_request: I/O error, dev dm-4, sector 5 [ 9707.209400] end_request: I/O error, dev dm-4, sector 6 [ 9707.209406] end_request: I/O error, dev dm-4, sector 7 [ 9707.209418] end_request: I/O error, dev dm-4, sector 0 [ 9707.209424] end_request: I/O error, dev dm-4, sector 1 [ 9707.209430] end_request: I/O error, dev dm-4, sector 2 [ 9707.209436] end_request: I/O error, dev dm-4, sector 3 [ 9707.209441] end_request: I/O error, dev dm-4, sector 4 [ 9707.209447] end_request: I/O error, dev dm-4, sector 5 [ 9707.209453] end_request: I/O error, dev dm-4, sector 6 [ 9707.209458] end_request: I/O error, dev dm-4, sector 7 [ 9707.209466] end_request: I/O error, dev dm-4, sector 0 [ 9707.209472] end_request: I/O error, dev dm-4, sector 1 [ 9707.209478] end_request: I/O error, dev dm-4, sector 2 [ 9707.209483] end_request: I/O error, dev dm-4, sector 3 [ 9707.209489] end_request: I/O error, dev dm-4, sector 4 [ 9707.209495] end_request: I/O error, dev dm-4, sector 5 [ 9707.209501] end_request: I/O error, dev dm-4, sector 6 [ 9707.209506] end_request: I/O error, dev dm-4, sector 7 [ 9707.209514] end_request: I/O error, dev dm-4, sector 0 [ 9707.209532] end_request: I/O error, dev dm-4, sector 1 [ 9707.209538] end_request: I/O error, dev dm-4, sector 2 [ 9707.209544] end_request: I/O error, dev dm-4, sector 3 [ 9707.209550] end_request: I/O error, dev dm-4, sector 4 [ 9707.209555] end_request: I/O error, dev dm-4, sector 5 [ 9707.209561] end_request: I/O error, dev dm-4, sector 6 [ 9707.209567] end_request: I/O error, dev dm-4, sector 7 [ 9707.209575] end_request: I/O error, dev dm-4, sector 0 [ 9707.209581] end_request: I/O error, dev dm-4, sector 1 [ 9707.209587] end_request: I/O error, dev dm-4, sector 2 [ 9707.209593] end_request: I/O error, dev dm-4, sector 3 [ 9707.209599] end_request: I/O error, dev dm-4, sector 4 [ 9707.209604] end_request: I/O error, dev dm-4, sector 5 [ 9707.209610] end_request: I/O error, dev dm-4, sector 6 [ 9707.209616] end_request: I/O error, dev dm-4, sector 7 [ 9707.209623] end_request: I/O error, dev dm-4, sector 0 [ 9707.209632] end_request: I/O error, dev dm-4, sector 1 [ 9707.209637] end_request: I/O error, dev dm-4, sector 2 [ 9707.209643] end_request: I/O error, dev dm-4, sector 3 [ 9707.209649] end_request: I/O error, dev dm-4, sector 4 [ 9707.209654] end_request: I/O error, dev dm-4, sector 5 [ 9707.209660] end_request: I/O error, dev dm-4, sector 6 [ 9707.209665] end_request: I/O error, dev dm-4, sector 7 [ 9707.209673] end_request: I/O error, dev dm-4, sector 56 [ 9707.209679] end_request: I/O error, dev dm-4, sector 57 [ 9707.209685] end_request: I/O error, dev dm-4, sector 58 [ 9707.209691] end_request: I/O error, dev dm-4, sector 59 [ 9707.209696] end_request: I/O error, dev dm-4, sector 60 [ 9707.209702] end_request: I/O error, dev dm-4, sector 61 [ 9707.209708] end_request: I/O error, dev dm-4, sector 62 [ 9707.209713] end_request: I/O error, dev dm-4, sector 63 [ 9707.209721] end_request: I/O error, dev dm-4, sector 0 [ 9707.209727] end_request: I/O error, dev dm-4, sector 1 [ 9707.209732] end_request: I/O error, dev dm-4, sector 2 [ 9707.209738] end_request: I/O error, dev dm-4, sector 3 [ 9707.209744] end_request: I/O error, dev dm-4, sector 4 [ 9707.209749] end_request: I/O error, dev dm-4, sector 5 [ 9707.209755] end_request: I/O error, dev dm-4, sector 6 [ 9707.209761] end_request: I/O error, dev dm-4, sector 7 [ 9707.209768] end_request: I/O error, dev dm-4, sector 0 [ 9707.209774] end_request: I/O error, dev dm-4, sector 1 [ 9707.209780] end_request: I/O error, dev dm-4, sector 2 [ 9707.209785] end_request: I/O error, dev dm-4, sector 3 [ 9707.209791] end_request: I/O error, dev dm-4, sector 4 [ 9707.209797] end_request: I/O error, dev dm-4, sector 5 [ 9707.209802] end_request: I/O error, dev dm-4, sector 6 [ 9707.209808] end_request: I/O error, dev dm-4, sector 7 [ 9707.209820] end_request: I/O error, dev dm-4, sector 93674282880 [ 9707.209826] end_request: I/O error, dev dm-4, sector 93674282881 [ 9707.209832] end_request: I/O error, dev dm-4, sector 93674282882 [ 9707.209838] end_request: I/O error, dev dm-4, sector 93674282883 [ 9707.209843] end_request: I/O error, dev dm-4, sector 93674282884 [ 9707.209849] end_request: I/O error, dev dm-4, sector 93674282885 [ 9707.209855] end_request: I/O error, dev dm-4, sector 93674282886 [ 9707.209861] end_request: I/O error, dev dm-4, sector 93674282887 [ 9707.209868] end_request: I/O error, dev dm-4, sector 93674282992 [ 9707.209874] end_request: I/O error, dev dm-4, sector 93674282993 [ 9707.209880] end_request: I/O error, dev dm-4, sector 93674282994 [ 9707.209886] end_request: I/O error, dev dm-4, sector 93674282995 [ 9707.209891] end_request: I/O error, dev dm-4, sector 93674282996 [ 9707.209897] end_request: I/O error, dev dm-4, sector 93674282997 [ 9707.209903] end_request: I/O error, dev dm-4, sector 93674282998 [ 9707.209908] end_request: I/O error, dev dm-4, sector 93674282999 [ 9707.209916] end_request: I/O error, dev dm-4, sector 0 [ 9707.209921] end_request: I/O error, dev dm-4, sector 1 [ 9707.209927] end_request: I/O error, dev dm-4, sector 2 [ 9707.209933] end_request: I/O error, dev dm-4, sector 3 [ 9707.209938] end_request: I/O error, dev dm-4, sector 4 [ 9707.209944] end_request: I/O error, dev dm-4, sector 5 [ 9707.209950] end_request: I/O error, dev dm-4, sector 6 [ 9707.209955] end_request: I/O error, dev dm-4, sector 7 [ 9707.209964] end_request: I/O error, dev dm-4, sector 8 [ 9707.209970] end_request: I/O error, dev dm-4, sector 9 [ 9707.209976] end_request: I/O error, dev dm-4, sector 10 [ 9707.209981] end_request: I/O error, dev dm-4, sector 11 [ 9707.209987] end_request: I/O error, dev dm-4, sector 12 [ 9707.209993] end_request: I/O error, dev dm-4, sector 13 [ 9707.209998] end_request: I/O error, dev dm-4, sector 14 [ 9707.210004] end_request: I/O error, dev dm-4, sector 15 [ 9707.210014] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210020] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210026] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210031] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210037] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210043] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210048] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210054] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210061] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210067] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210073] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210079] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210084] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210090] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210096] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210101] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210108] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210114] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210120] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210126] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210132] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210137] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210143] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210149] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210156] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210162] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210167] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210173] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210179] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210185] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210190] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210196] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210204] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210210] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210215] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210221] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210227] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210233] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210239] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210244] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210252] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210258] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210264] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210270] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210276] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210281] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210287] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210293] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210300] end_request: I/O error, dev dm-4, sector 93674282944 [ 9707.210306] end_request: I/O error, dev dm-4, sector 93674282945 [ 9707.210312] end_request: I/O error, dev dm-4, sector 93674282946 [ 9707.210317] end_request: I/O error, dev dm-4, sector 93674282947 [ 9707.210323] end_request: I/O error, dev dm-4, sector 93674282948 [ 9707.210329] end_request: I/O error, dev dm-4, sector 93674282949 [ 9707.210334] end_request: I/O error, dev dm-4, sector 93674282950 [ 9707.210340] end_request: I/O error, dev dm-4, sector 93674282951 [ 9707.210348] end_request: I/O error, dev dm-4, sector 93674282992 [ 9707.210354] end_request: I/O error, dev dm-4, sector 93674282993 [ 9707.210360] end_request: I/O error, dev dm-4, sector 93674282994 [ 9707.210366] end_request: I/O error, dev dm-4, sector 93674282995 [ 9707.210372] end_request: I/O error, dev dm-4, sector 93674282996 [ 9707.210377] end_request: I/O error, dev dm-4, sector 93674282997 [ 9707.210383] end_request: I/O error, dev dm-4, sector 93674282998 [ 9707.210389] end_request: I/O error, dev dm-4, sector 93674282999 [ 9707.210396] end_request: I/O error, dev dm-4, sector 8 [ 9707.210402] end_request: I/O error, dev dm-4, sector 9 [ 9707.210408] end_request: I/O error, dev dm-4, sector 10 [ 9707.210414] end_request: I/O error, dev dm-4, sector 11 [ 9707.210419] end_request: I/O error, dev dm-4, sector 12 [ 9707.210425] end_request: I/O error, dev dm-4, sector 13 [ 9707.210430] end_request: I/O error, dev dm-4, sector 14 [ 9707.210436] end_request: I/O error, dev dm-4, sector 15 [ 9707.210444] end_request: I/O error, dev dm-4, sector 8 [ 9707.210450] end_request: I/O error, dev dm-4, sector 9 [ 9707.210455] end_request: I/O error, dev dm-4, sector 10 [ 9707.210461] end_request: I/O error, dev dm-4, sector 11 [ 9707.210466] end_request: I/O error, dev dm-4, sector 12 [ 9707.210472] end_request: I/O error, dev dm-4, sector 13 [ 9707.210478] end_request: I/O error, dev dm-4, sector 14 [ 9707.210483] end_request: I/O error, dev dm-4, sector 15 [ 9707.210491] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210497] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210503] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210509] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210519] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210531] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210537] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210543] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210551] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210557] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210563] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210568] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210574] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210580] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210586] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210591] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210603] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.210609] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.210615] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.210620] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.210626] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.210632] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.210638] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.210643] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.210651] end_request: I/O error, dev dm-4, sector 0 [ 9707.210657] end_request: I/O error, dev dm-4, sector 1 [ 9707.210662] end_request: I/O error, dev dm-4, sector 2 [ 9707.210668] end_request: I/O error, dev dm-4, sector 3 [ 9707.210674] end_request: I/O error, dev dm-4, sector 4 [ 9707.210679] end_request: I/O error, dev dm-4, sector 5 [ 9707.210685] end_request: I/O error, dev dm-4, sector 6 [ 9707.210690] end_request: I/O error, dev dm-4, sector 7 [ 9707.210698] end_request: I/O error, dev dm-4, sector 0 [ 9707.210703] end_request: I/O error, dev dm-4, sector 1 [ 9707.210709] end_request: I/O error, dev dm-4, sector 2 [ 9707.210715] end_request: I/O error, dev dm-4, sector 3 [ 9707.210721] end_request: I/O error, dev dm-4, sector 4 [ 9707.210726] end_request: I/O error, dev dm-4, sector 5 [ 9707.210732] end_request: I/O error, dev dm-4, sector 6 [ 9707.210738] end_request: I/O error, dev dm-4, sector 7 [ 9707.210745] end_request: I/O error, dev dm-4, sector 0 [ 9707.210751] end_request: I/O error, dev dm-4, sector 1 [ 9707.210756] end_request: I/O error, dev dm-4, sector 2 [ 9707.210762] end_request: I/O error, dev dm-4, sector 3 [ 9707.210768] end_request: I/O error, dev dm-4, sector 4 [ 9707.210773] end_request: I/O error, dev dm-4, sector 5 [ 9707.210779] end_request: I/O error, dev dm-4, sector 6 [ 9707.210784] end_request: I/O error, dev dm-4, sector 7 [ 9707.210792] end_request: I/O error, dev dm-4, sector 0 [ 9707.210798] end_request: I/O error, dev dm-4, sector 1 [ 9707.210803] end_request: I/O error, dev dm-4, sector 2 [ 9707.210809] end_request: I/O error, dev dm-4, sector 3 [ 9707.210815] end_request: I/O error, dev dm-4, sector 4 [ 9707.210820] end_request: I/O error, dev dm-4, sector 5 [ 9707.210826] end_request: I/O error, dev dm-4, sector 6 [ 9707.210831] end_request: I/O error, dev dm-4, sector 7 [ 9707.210839] end_request: I/O error, dev dm-4, sector 0 [ 9707.210845] end_request: I/O error, dev dm-4, sector 1 [ 9707.210850] end_request: I/O error, dev dm-4, sector 2 [ 9707.210856] end_request: I/O error, dev dm-4, sector 3 [ 9707.210861] end_request: I/O error, dev dm-4, sector 4 [ 9707.210867] end_request: I/O error, dev dm-4, sector 5 [ 9707.210873] end_request: I/O error, dev dm-4, sector 6 [ 9707.210878] end_request: I/O error, dev dm-4, sector 7 [ 9707.210886] end_request: I/O error, dev dm-4, sector 0 [ 9707.210891] end_request: I/O error, dev dm-4, sector 1 [ 9707.210897] end_request: I/O error, dev dm-4, sector 2 [ 9707.210903] end_request: I/O error, dev dm-4, sector 3 [ 9707.210908] end_request: I/O error, dev dm-4, sector 4 [ 9707.210914] end_request: I/O error, dev dm-4, sector 5 [ 9707.210919] end_request: I/O error, dev dm-4, sector 6 [ 9707.210925] end_request: I/O error, dev dm-4, sector 7 [ 9707.210933] end_request: I/O error, dev dm-4, sector 0 [ 9707.210938] end_request: I/O error, dev dm-4, sector 1 [ 9707.210944] end_request: I/O error, dev dm-4, sector 2 [ 9707.210950] end_request: I/O error, dev dm-4, sector 3 [ 9707.210955] end_request: I/O error, dev dm-4, sector 4 [ 9707.210961] end_request: I/O error, dev dm-4, sector 5 [ 9707.210967] end_request: I/O error, dev dm-4, sector 6 [ 9707.210972] end_request: I/O error, dev dm-4, sector 7 [ 9707.210980] end_request: I/O error, dev dm-4, sector 2048 [ 9707.210986] end_request: I/O error, dev dm-4, sector 2049 [ 9707.210992] end_request: I/O error, dev dm-4, sector 2050 [ 9707.210997] end_request: I/O error, dev dm-4, sector 2051 [ 9707.211003] end_request: I/O error, dev dm-4, sector 2052 [ 9707.211009] end_request: I/O error, dev dm-4, sector 2053 [ 9707.211014] end_request: I/O error, dev dm-4, sector 2054 [ 9707.211020] end_request: I/O error, dev dm-4, sector 2055 [ 9707.211028] end_request: I/O error, dev dm-4, sector 0 [ 9707.211033] end_request: I/O error, dev dm-4, sector 1 [ 9707.211039] end_request: I/O error, dev dm-4, sector 2 [ 9707.211045] end_request: I/O error, dev dm-4, sector 3 [ 9707.211050] end_request: I/O error, dev dm-4, sector 4 [ 9707.211056] end_request: I/O error, dev dm-4, sector 5 [ 9707.211062] end_request: I/O error, dev dm-4, sector 6 [ 9707.211067] end_request: I/O error, dev dm-4, sector 7 [ 9707.211075] end_request: I/O error, dev dm-4, sector 0 [ 9707.211080] end_request: I/O error, dev dm-4, sector 1 [ 9707.211086] end_request: I/O error, dev dm-4, sector 2 [ 9707.211092] end_request: I/O error, dev dm-4, sector 3 [ 9707.211097] end_request: I/O error, dev dm-4, sector 4 [ 9707.211103] end_request: I/O error, dev dm-4, sector 5 [ 9707.211109] end_request: I/O error, dev dm-4, sector 6 [ 9707.211114] end_request: I/O error, dev dm-4, sector 7 [ 9707.211122] end_request: I/O error, dev dm-4, sector 0 [ 9707.211127] end_request: I/O error, dev dm-4, sector 1 [ 9707.211133] end_request: I/O error, dev dm-4, sector 2 [ 9707.211139] end_request: I/O error, dev dm-4, sector 3 [ 9707.211144] end_request: I/O error, dev dm-4, sector 4 [ 9707.211150] end_request: I/O error, dev dm-4, sector 5 [ 9707.211155] end_request: I/O error, dev dm-4, sector 6 [ 9707.211161] end_request: I/O error, dev dm-4, sector 7 [ 9707.211168] end_request: I/O error, dev dm-4, sector 0 [ 9707.211174] end_request: I/O error, dev dm-4, sector 1 [ 9707.211180] end_request: I/O error, dev dm-4, sector 2 [ 9707.211185] end_request: I/O error, dev dm-4, sector 3 [ 9707.211191] end_request: I/O error, dev dm-4, sector 4 [ 9707.211197] end_request: I/O error, dev dm-4, sector 5 [ 9707.211202] end_request: I/O error, dev dm-4, sector 6 [ 9707.211208] end_request: I/O error, dev dm-4, sector 7 [ 9707.211215] end_request: I/O error, dev dm-4, sector 0 [ 9707.211221] end_request: I/O error, dev dm-4, sector 1 [ 9707.211227] end_request: I/O error, dev dm-4, sector 2 [ 9707.211232] end_request: I/O error, dev dm-4, sector 3 [ 9707.211238] end_request: I/O error, dev dm-4, sector 4 [ 9707.211243] end_request: I/O error, dev dm-4, sector 5 [ 9707.211249] end_request: I/O error, dev dm-4, sector 6 [ 9707.211255] end_request: I/O error, dev dm-4, sector 7 [ 9707.211262] end_request: I/O error, dev dm-4, sector 0 [ 9707.211268] end_request: I/O error, dev dm-4, sector 1 [ 9707.211274] end_request: I/O error, dev dm-4, sector 2 [ 9707.211279] end_request: I/O error, dev dm-4, sector 3 [ 9707.211285] end_request: I/O error, dev dm-4, sector 4 [ 9707.211290] end_request: I/O error, dev dm-4, sector 5 [ 9707.211296] end_request: I/O error, dev dm-4, sector 6 [ 9707.211302] end_request: I/O error, dev dm-4, sector 7 [ 9707.211309] end_request: I/O error, dev dm-4, sector 0 [ 9707.211315] end_request: I/O error, dev dm-4, sector 1 [ 9707.211321] end_request: I/O error, dev dm-4, sector 2 [ 9707.211326] end_request: I/O error, dev dm-4, sector 3 [ 9707.211332] end_request: I/O error, dev dm-4, sector 4 [ 9707.211337] end_request: I/O error, dev dm-4, sector 5 [ 9707.211343] end_request: I/O error, dev dm-4, sector 6 [ 9707.211349] end_request: I/O error, dev dm-4, sector 7 [ 9707.211356] end_request: I/O error, dev dm-4, sector 0 [ 9707.211362] end_request: I/O error, dev dm-4, sector 1 [ 9707.211367] end_request: I/O error, dev dm-4, sector 2 [ 9707.211373] end_request: I/O error, dev dm-4, sector 3 [ 9707.211379] end_request: I/O error, dev dm-4, sector 4 [ 9707.211384] end_request: I/O error, dev dm-4, sector 5 [ 9707.211390] end_request: I/O error, dev dm-4, sector 6 [ 9707.211395] end_request: I/O error, dev dm-4, sector 7 [ 9707.211403] end_request: I/O error, dev dm-4, sector 0 [ 9707.211409] end_request: I/O error, dev dm-4, sector 1 [ 9707.211414] end_request: I/O error, dev dm-4, sector 2 [ 9707.211420] end_request: I/O error, dev dm-4, sector 3 [ 9707.211426] end_request: I/O error, dev dm-4, sector 4 [ 9707.211431] end_request: I/O error, dev dm-4, sector 5 [ 9707.211437] end_request: I/O error, dev dm-4, sector 6 [ 9707.211443] end_request: I/O error, dev dm-4, sector 7 [ 9707.211450] end_request: I/O error, dev dm-4, sector 0 [ 9707.211456] end_request: I/O error, dev dm-4, sector 1 [ 9707.211461] end_request: I/O error, dev dm-4, sector 2 [ 9707.211467] end_request: I/O error, dev dm-4, sector 3 [ 9707.211473] end_request: I/O error, dev dm-4, sector 4 [ 9707.211478] end_request: I/O error, dev dm-4, sector 5 [ 9707.211484] end_request: I/O error, dev dm-4, sector 6 [ 9707.211489] end_request: I/O error, dev dm-4, sector 7 [ 9707.211497] end_request: I/O error, dev dm-4, sector 0 [ 9707.211502] end_request: I/O error, dev dm-4, sector 1 [ 9707.211508] end_request: I/O error, dev dm-4, sector 2 [ 9707.211519] end_request: I/O error, dev dm-4, sector 3 [ 9707.211527] end_request: I/O error, dev dm-4, sector 4 [ 9707.211533] end_request: I/O error, dev dm-4, sector 5 [ 9707.211539] end_request: I/O error, dev dm-4, sector 6 [ 9707.211545] end_request: I/O error, dev dm-4, sector 7 [ 9707.211553] end_request: I/O error, dev dm-4, sector 0 [ 9707.211559] end_request: I/O error, dev dm-4, sector 1 [ 9707.211564] end_request: I/O error, dev dm-4, sector 2 [ 9707.211570] end_request: I/O error, dev dm-4, sector 3 [ 9707.211576] end_request: I/O error, dev dm-4, sector 4 [ 9707.211581] end_request: I/O error, dev dm-4, sector 5 [ 9707.211587] end_request: I/O error, dev dm-4, sector 6 [ 9707.211593] end_request: I/O error, dev dm-4, sector 7 [ 9707.211600] end_request: I/O error, dev dm-4, sector 8 [ 9707.211606] end_request: I/O error, dev dm-4, sector 9 [ 9707.211612] end_request: I/O error, dev dm-4, sector 10 [ 9707.211617] end_request: I/O error, dev dm-4, sector 11 [ 9707.211623] end_request: I/O error, dev dm-4, sector 12 [ 9707.211628] end_request: I/O error, dev dm-4, sector 13 [ 9707.211634] end_request: I/O error, dev dm-4, sector 14 [ 9707.211640] end_request: I/O error, dev dm-4, sector 15 [ 9707.211647] end_request: I/O error, dev dm-4, sector 8 [ 9707.211653] end_request: I/O error, dev dm-4, sector 9 [ 9707.211659] end_request: I/O error, dev dm-4, sector 10 [ 9707.211664] end_request: I/O error, dev dm-4, sector 11 [ 9707.211670] end_request: I/O error, dev dm-4, sector 12 [ 9707.211676] end_request: I/O error, dev dm-4, sector 13 [ 9707.211681] end_request: I/O error, dev dm-4, sector 14 [ 9707.211687] end_request: I/O error, dev dm-4, sector 15 [ 9707.211694] end_request: I/O error, dev dm-4, sector 8 [ 9707.211700] end_request: I/O error, dev dm-4, sector 9 [ 9707.211706] end_request: I/O error, dev dm-4, sector 10 [ 9707.211712] end_request: I/O error, dev dm-4, sector 11 [ 9707.211717] end_request: I/O error, dev dm-4, sector 12 [ 9707.211723] end_request: I/O error, dev dm-4, sector 13 [ 9707.211729] end_request: I/O error, dev dm-4, sector 14 [ 9707.211734] end_request: I/O error, dev dm-4, sector 15 [ 9707.211742] end_request: I/O error, dev dm-4, sector 8 [ 9707.211747] end_request: I/O error, dev dm-4, sector 9 [ 9707.211753] end_request: I/O error, dev dm-4, sector 10 [ 9707.211759] end_request: I/O error, dev dm-4, sector 11 [ 9707.211764] end_request: I/O error, dev dm-4, sector 12 [ 9707.211770] end_request: I/O error, dev dm-4, sector 13 [ 9707.211776] end_request: I/O error, dev dm-4, sector 14 [ 9707.211781] end_request: I/O error, dev dm-4, sector 15 [ 9707.211789] end_request: I/O error, dev dm-4, sector 24 [ 9707.211795] end_request: I/O error, dev dm-4, sector 25 [ 9707.211801] end_request: I/O error, dev dm-4, sector 26 [ 9707.211806] end_request: I/O error, dev dm-4, sector 27 [ 9707.211812] end_request: I/O error, dev dm-4, sector 28 [ 9707.211818] end_request: I/O error, dev dm-4, sector 29 [ 9707.211823] end_request: I/O error, dev dm-4, sector 30 [ 9707.211829] end_request: I/O error, dev dm-4, sector 31 [ 9707.211836] end_request: I/O error, dev dm-4, sector 24 [ 9707.211842] end_request: I/O error, dev dm-4, sector 25 [ 9707.211848] end_request: I/O error, dev dm-4, sector 26 [ 9707.211854] end_request: I/O error, dev dm-4, sector 27 [ 9707.211859] end_request: I/O error, dev dm-4, sector 28 [ 9707.211865] end_request: I/O error, dev dm-4, sector 29 [ 9707.211871] end_request: I/O error, dev dm-4, sector 30 [ 9707.211876] end_request: I/O error, dev dm-4, sector 31 [ 9707.211883] end_request: I/O error, dev dm-4, sector 24 [ 9707.211889] end_request: I/O error, dev dm-4, sector 25 [ 9707.211895] end_request: I/O error, dev dm-4, sector 26 [ 9707.211901] end_request: I/O error, dev dm-4, sector 27 [ 9707.211906] end_request: I/O error, dev dm-4, sector 28 [ 9707.211912] end_request: I/O error, dev dm-4, sector 29 [ 9707.211918] end_request: I/O error, dev dm-4, sector 30 [ 9707.211923] end_request: I/O error, dev dm-4, sector 31 [ 9707.211931] end_request: I/O error, dev dm-4, sector 24 [ 9707.211936] end_request: I/O error, dev dm-4, sector 25 [ 9707.211942] end_request: I/O error, dev dm-4, sector 26 [ 9707.211948] end_request: I/O error, dev dm-4, sector 27 [ 9707.211953] end_request: I/O error, dev dm-4, sector 28 [ 9707.211959] end_request: I/O error, dev dm-4, sector 29 [ 9707.211964] end_request: I/O error, dev dm-4, sector 30 [ 9707.211970] end_request: I/O error, dev dm-4, sector 31 [ 9707.211977] end_request: I/O error, dev dm-4, sector 56 [ 9707.211983] end_request: I/O error, dev dm-4, sector 57 [ 9707.211989] end_request: I/O error, dev dm-4, sector 58 [ 9707.211995] end_request: I/O error, dev dm-4, sector 59 [ 9707.212000] end_request: I/O error, dev dm-4, sector 60 [ 9707.212006] end_request: I/O error, dev dm-4, sector 61 [ 9707.212011] end_request: I/O error, dev dm-4, sector 62 [ 9707.212017] end_request: I/O error, dev dm-4, sector 63 [ 9707.212024] end_request: I/O error, dev dm-4, sector 56 [ 9707.212030] end_request: I/O error, dev dm-4, sector 57 [ 9707.212036] end_request: I/O error, dev dm-4, sector 58 [ 9707.212041] end_request: I/O error, dev dm-4, sector 59 [ 9707.212047] end_request: I/O error, dev dm-4, sector 60 [ 9707.212053] end_request: I/O error, dev dm-4, sector 61 [ 9707.212058] end_request: I/O error, dev dm-4, sector 62 [ 9707.212064] end_request: I/O error, dev dm-4, sector 63 [ 9707.212071] end_request: I/O error, dev dm-4, sector 56 [ 9707.212077] end_request: I/O error, dev dm-4, sector 57 [ 9707.212083] end_request: I/O error, dev dm-4, sector 58 [ 9707.212089] end_request: I/O error, dev dm-4, sector 59 [ 9707.212094] end_request: I/O error, dev dm-4, sector 60 [ 9707.212100] end_request: I/O error, dev dm-4, sector 61 [ 9707.212106] end_request: I/O error, dev dm-4, sector 62 [ 9707.212111] end_request: I/O error, dev dm-4, sector 63 [ 9707.212119] end_request: I/O error, dev dm-4, sector 56 [ 9707.212125] end_request: I/O error, dev dm-4, sector 57 [ 9707.212130] end_request: I/O error, dev dm-4, sector 58 [ 9707.212136] end_request: I/O error, dev dm-4, sector 59 [ 9707.212142] end_request: I/O error, dev dm-4, sector 60 [ 9707.212147] end_request: I/O error, dev dm-4, sector 61 [ 9707.212153] end_request: I/O error, dev dm-4, sector 62 [ 9707.212159] end_request: I/O error, dev dm-4, sector 63 [ 9707.212166] end_request: I/O error, dev dm-4, sector 120 [ 9707.212172] end_request: I/O error, dev dm-4, sector 121 [ 9707.212178] end_request: I/O error, dev dm-4, sector 122 [ 9707.212184] end_request: I/O error, dev dm-4, sector 123 [ 9707.212189] end_request: I/O error, dev dm-4, sector 124 [ 9707.212195] end_request: I/O error, dev dm-4, sector 125 [ 9707.212201] end_request: I/O error, dev dm-4, sector 126 [ 9707.212206] end_request: I/O error, dev dm-4, sector 127 [ 9707.212214] end_request: I/O error, dev dm-4, sector 120 [ 9707.212220] end_request: I/O error, dev dm-4, sector 121 [ 9707.212225] end_request: I/O error, dev dm-4, sector 122 [ 9707.212231] end_request: I/O error, dev dm-4, sector 123 [ 9707.212237] end_request: I/O error, dev dm-4, sector 124 [ 9707.212242] end_request: I/O error, dev dm-4, sector 125 [ 9707.212248] end_request: I/O error, dev dm-4, sector 126 [ 9707.212253] end_request: I/O error, dev dm-4, sector 127 [ 9707.212261] end_request: I/O error, dev dm-4, sector 120 [ 9707.212266] end_request: I/O error, dev dm-4, sector 121 [ 9707.212272] end_request: I/O error, dev dm-4, sector 122 [ 9707.212278] end_request: I/O error, dev dm-4, sector 123 [ 9707.212283] end_request: I/O error, dev dm-4, sector 124 [ 9707.212289] end_request: I/O error, dev dm-4, sector 125 [ 9707.212295] end_request: I/O error, dev dm-4, sector 126 [ 9707.212300] end_request: I/O error, dev dm-4, sector 127 [ 9707.212308] end_request: I/O error, dev dm-4, sector 120 [ 9707.212314] end_request: I/O error, dev dm-4, sector 121 [ 9707.212319] end_request: I/O error, dev dm-4, sector 122 [ 9707.212325] end_request: I/O error, dev dm-4, sector 123 [ 9707.212330] end_request: I/O error, dev dm-4, sector 124 [ 9707.212336] end_request: I/O error, dev dm-4, sector 125 [ 9707.212342] end_request: I/O error, dev dm-4, sector 126 [ 9707.212347] end_request: I/O error, dev dm-4, sector 127 [ 9707.212355] end_request: I/O error, dev dm-4, sector 0 [ 9707.212361] end_request: I/O error, dev dm-4, sector 1 [ 9707.212367] end_request: I/O error, dev dm-4, sector 2 [ 9707.212372] end_request: I/O error, dev dm-4, sector 3 [ 9707.212378] end_request: I/O error, dev dm-4, sector 4 [ 9707.212383] end_request: I/O error, dev dm-4, sector 5 [ 9707.212389] end_request: I/O error, dev dm-4, sector 6 [ 9707.212395] end_request: I/O error, dev dm-4, sector 7 [ 9707.212402] end_request: I/O error, dev dm-4, sector 0 [ 9707.212408] end_request: I/O error, dev dm-4, sector 1 [ 9707.212414] end_request: I/O error, dev dm-4, sector 2 [ 9707.212419] end_request: I/O error, dev dm-4, sector 3 [ 9707.212425] end_request: I/O error, dev dm-4, sector 4 [ 9707.212431] end_request: I/O error, dev dm-4, sector 5 [ 9707.212436] end_request: I/O error, dev dm-4, sector 6 [ 9707.212442] end_request: I/O error, dev dm-4, sector 7 [ 9707.212449] end_request: I/O error, dev dm-4, sector 8 [ 9707.212455] end_request: I/O error, dev dm-4, sector 9 [ 9707.212461] end_request: I/O error, dev dm-4, sector 10 [ 9707.212466] end_request: I/O error, dev dm-4, sector 11 [ 9707.212472] end_request: I/O error, dev dm-4, sector 12 [ 9707.212478] end_request: I/O error, dev dm-4, sector 13 [ 9707.212483] end_request: I/O error, dev dm-4, sector 14 [ 9707.212489] end_request: I/O error, dev dm-4, sector 15 [ 9707.212496] end_request: I/O error, dev dm-4, sector 8 [ 9707.212502] end_request: I/O error, dev dm-4, sector 9 [ 9707.212507] end_request: I/O error, dev dm-4, sector 10 [ 9707.212521] end_request: I/O error, dev dm-4, sector 11 [ 9707.212527] end_request: I/O error, dev dm-4, sector 12 [ 9707.212534] end_request: I/O error, dev dm-4, sector 13 [ 9707.212541] end_request: I/O error, dev dm-4, sector 14 [ 9707.212547] end_request: I/O error, dev dm-4, sector 15 [ 9707.212555] end_request: I/O error, dev dm-4, sector 24 [ 9707.212561] end_request: I/O error, dev dm-4, sector 25 [ 9707.212566] end_request: I/O error, dev dm-4, sector 26 [ 9707.212572] end_request: I/O error, dev dm-4, sector 27 [ 9707.212578] end_request: I/O error, dev dm-4, sector 28 [ 9707.212583] end_request: I/O error, dev dm-4, sector 29 [ 9707.212589] end_request: I/O error, dev dm-4, sector 30 [ 9707.212594] end_request: I/O error, dev dm-4, sector 31 [ 9707.212602] end_request: I/O error, dev dm-4, sector 24 [ 9707.212608] end_request: I/O error, dev dm-4, sector 25 [ 9707.212614] end_request: I/O error, dev dm-4, sector 26 [ 9707.212619] end_request: I/O error, dev dm-4, sector 27 [ 9707.212625] end_request: I/O error, dev dm-4, sector 28 [ 9707.212630] end_request: I/O error, dev dm-4, sector 29 [ 9707.212636] end_request: I/O error, dev dm-4, sector 30 [ 9707.212642] end_request: I/O error, dev dm-4, sector 31 [ 9707.212649] end_request: I/O error, dev dm-4, sector 56 [ 9707.212655] end_request: I/O error, dev dm-4, sector 57 [ 9707.212661] end_request: I/O error, dev dm-4, sector 58 [ 9707.212666] end_request: I/O error, dev dm-4, sector 59 [ 9707.212672] end_request: I/O error, dev dm-4, sector 60 [ 9707.212677] end_request: I/O error, dev dm-4, sector 61 [ 9707.212683] end_request: I/O error, dev dm-4, sector 62 [ 9707.212689] end_request: I/O error, dev dm-4, sector 63 [ 9707.212696] end_request: I/O error, dev dm-4, sector 56 [ 9707.212702] end_request: I/O error, dev dm-4, sector 57 [ 9707.212708] end_request: I/O error, dev dm-4, sector 58 [ 9707.212713] end_request: I/O error, dev dm-4, sector 59 [ 9707.212719] end_request: I/O error, dev dm-4, sector 60 [ 9707.212724] end_request: I/O error, dev dm-4, sector 61 [ 9707.212730] end_request: I/O error, dev dm-4, sector 62 [ 9707.212735] end_request: I/O error, dev dm-4, sector 63 [ 9707.212743] end_request: I/O error, dev dm-4, sector 120 [ 9707.212749] end_request: I/O error, dev dm-4, sector 121 [ 9707.212754] end_request: I/O error, dev dm-4, sector 122 [ 9707.212760] end_request: I/O error, dev dm-4, sector 123 [ 9707.212766] end_request: I/O error, dev dm-4, sector 124 [ 9707.212771] end_request: I/O error, dev dm-4, sector 125 [ 9707.212777] end_request: I/O error, dev dm-4, sector 126 [ 9707.212782] end_request: I/O error, dev dm-4, sector 127 [ 9707.212790] end_request: I/O error, dev dm-4, sector 120 [ 9707.212796] end_request: I/O error, dev dm-4, sector 121 [ 9707.212801] end_request: I/O error, dev dm-4, sector 122 [ 9707.212807] end_request: I/O error, dev dm-4, sector 123 [ 9707.212813] end_request: I/O error, dev dm-4, sector 124 [ 9707.212818] end_request: I/O error, dev dm-4, sector 125 [ 9707.212824] end_request: I/O error, dev dm-4, sector 126 [ 9707.212829] end_request: I/O error, dev dm-4, sector 127 [ 9707.212837] end_request: I/O error, dev dm-4, sector 0 [ 9707.212843] end_request: I/O error, dev dm-4, sector 1 [ 9707.212848] end_request: I/O error, dev dm-4, sector 2 [ 9707.212854] end_request: I/O error, dev dm-4, sector 3 [ 9707.212859] end_request: I/O error, dev dm-4, sector 4 [ 9707.212865] end_request: I/O error, dev dm-4, sector 5 [ 9707.212871] end_request: I/O error, dev dm-4, sector 6 [ 9707.212876] end_request: I/O error, dev dm-4, sector 7 [ 9707.212884] end_request: I/O error, dev dm-4, sector 0 [ 9707.212889] end_request: I/O error, dev dm-4, sector 1 [ 9707.212895] end_request: I/O error, dev dm-4, sector 2 [ 9707.212901] end_request: I/O error, dev dm-4, sector 3 [ 9707.212906] end_request: I/O error, dev dm-4, sector 4 [ 9707.212912] end_request: I/O error, dev dm-4, sector 5 [ 9707.212918] end_request: I/O error, dev dm-4, sector 6 [ 9707.212923] end_request: I/O error, dev dm-4, sector 7 [ 9707.212931] end_request: I/O error, dev dm-4, sector 0 [ 9707.212937] end_request: I/O error, dev dm-4, sector 1 [ 9707.212942] end_request: I/O error, dev dm-4, sector 2 [ 9707.212948] end_request: I/O error, dev dm-4, sector 3 [ 9707.212954] end_request: I/O error, dev dm-4, sector 4 [ 9707.212959] end_request: I/O error, dev dm-4, sector 5 [ 9707.212965] end_request: I/O error, dev dm-4, sector 6 [ 9707.212970] end_request: I/O error, dev dm-4, sector 7 [ 9707.212977] end_request: I/O error, dev dm-4, sector 0 [ 9707.212983] end_request: I/O error, dev dm-4, sector 1 [ 9707.212989] end_request: I/O error, dev dm-4, sector 2 [ 9707.212995] end_request: I/O error, dev dm-4, sector 3 [ 9707.213000] end_request: I/O error, dev dm-4, sector 4 [ 9707.213006] end_request: I/O error, dev dm-4, sector 5 [ 9707.213011] end_request: I/O error, dev dm-4, sector 6 [ 9707.213017] end_request: I/O error, dev dm-4, sector 7 [ 9707.213024] end_request: I/O error, dev dm-4, sector 0 [ 9707.213030] end_request: I/O error, dev dm-4, sector 1 [ 9707.213036] end_request: I/O error, dev dm-4, sector 2 [ 9707.213042] end_request: I/O error, dev dm-4, sector 3 [ 9707.213047] end_request: I/O error, dev dm-4, sector 4 [ 9707.213053] end_request: I/O error, dev dm-4, sector 5 [ 9707.213058] end_request: I/O error, dev dm-4, sector 6 [ 9707.213064] end_request: I/O error, dev dm-4, sector 7 [ 9707.213071] end_request: I/O error, dev dm-4, sector 0 [ 9707.213077] end_request: I/O error, dev dm-4, sector 1 [ 9707.213083] end_request: I/O error, dev dm-4, sector 2 [ 9707.213089] end_request: I/O error, dev dm-4, sector 3 [ 9707.213094] end_request: I/O error, dev dm-4, sector 4 [ 9707.213100] end_request: I/O error, dev dm-4, sector 5 [ 9707.213105] end_request: I/O error, dev dm-4, sector 6 [ 9707.213111] end_request: I/O error, dev dm-4, sector 7 [ 9707.213119] end_request: I/O error, dev dm-4, sector 16 [ 9707.213124] end_request: I/O error, dev dm-4, sector 17 [ 9707.213130] end_request: I/O error, dev dm-4, sector 18 [ 9707.213136] end_request: I/O error, dev dm-4, sector 19 [ 9707.213142] end_request: I/O error, dev dm-4, sector 20 [ 9707.213147] end_request: I/O error, dev dm-4, sector 21 [ 9707.213153] end_request: I/O error, dev dm-4, sector 22 [ 9707.213158] end_request: I/O error, dev dm-4, sector 23 [ 9707.213166] end_request: I/O error, dev dm-4, sector 128 [ 9707.213172] end_request: I/O error, dev dm-4, sector 129 [ 9707.213177] end_request: I/O error, dev dm-4, sector 130 [ 9707.213183] end_request: I/O error, dev dm-4, sector 131 [ 9707.213189] end_request: I/O error, dev dm-4, sector 132 [ 9707.213194] end_request: I/O error, dev dm-4, sector 133 [ 9707.213200] end_request: I/O error, dev dm-4, sector 134 [ 9707.213206] end_request: I/O error, dev dm-4, sector 135 [ 9707.213213] end_request: I/O error, dev dm-4, sector 128 [ 9707.213219] end_request: I/O error, dev dm-4, sector 129 [ 9707.213225] end_request: I/O error, dev dm-4, sector 130 [ 9707.213231] end_request: I/O error, dev dm-4, sector 131 [ 9707.213237] end_request: I/O error, dev dm-4, sector 132 [ 9707.213242] end_request: I/O error, dev dm-4, sector 133 [ 9707.213248] end_request: I/O error, dev dm-4, sector 134 [ 9707.213254] end_request: I/O error, dev dm-4, sector 135 [ 9707.213262] end_request: I/O error, dev dm-4, sector 128 [ 9707.213269] end_request: I/O error, dev dm-4, sector 129 [ 9707.213274] end_request: I/O error, dev dm-4, sector 130 [ 9707.213280] end_request: I/O error, dev dm-4, sector 131 [ 9707.213286] end_request: I/O error, dev dm-4, sector 132 [ 9707.213291] end_request: I/O error, dev dm-4, sector 133 [ 9707.213297] end_request: I/O error, dev dm-4, sector 134 [ 9707.213302] end_request: I/O error, dev dm-4, sector 135 [ 9707.213310] end_request: I/O error, dev dm-4, sector 16 [ 9707.213316] end_request: I/O error, dev dm-4, sector 17 [ 9707.213321] end_request: I/O error, dev dm-4, sector 18 [ 9707.213327] end_request: I/O error, dev dm-4, sector 19 [ 9707.213333] end_request: I/O error, dev dm-4, sector 20 [ 9707.213338] end_request: I/O error, dev dm-4, sector 21 [ 9707.213344] end_request: I/O error, dev dm-4, sector 22 [ 9707.213349] end_request: I/O error, dev dm-4, sector 23 [ 9707.213357] end_request: I/O error, dev dm-4, sector 128 [ 9707.213363] end_request: I/O error, dev dm-4, sector 129 [ 9707.213368] end_request: I/O error, dev dm-4, sector 130 [ 9707.213374] end_request: I/O error, dev dm-4, sector 131 [ 9707.213380] end_request: I/O error, dev dm-4, sector 132 [ 9707.213385] end_request: I/O error, dev dm-4, sector 133 [ 9707.213391] end_request: I/O error, dev dm-4, sector 134 [ 9707.213396] end_request: I/O error, dev dm-4, sector 135 [ 9707.213404] end_request: I/O error, dev dm-4, sector 64 [ 9707.213410] end_request: I/O error, dev dm-4, sector 65 [ 9707.213416] end_request: I/O error, dev dm-4, sector 66 [ 9707.213422] end_request: I/O error, dev dm-4, sector 67 [ 9707.213427] end_request: I/O error, dev dm-4, sector 68 [ 9707.213433] end_request: I/O error, dev dm-4, sector 69 [ 9707.213438] end_request: I/O error, dev dm-4, sector 70 [ 9707.213444] end_request: I/O error, dev dm-4, sector 71 [ 9707.213452] end_request: I/O error, dev dm-4, sector 64 [ 9707.213457] end_request: I/O error, dev dm-4, sector 65 [ 9707.213463] end_request: I/O error, dev dm-4, sector 66 [ 9707.213469] end_request: I/O error, dev dm-4, sector 67 [ 9707.213474] end_request: I/O error, dev dm-4, sector 68 [ 9707.213480] end_request: I/O error, dev dm-4, sector 69 [ 9707.213485] end_request: I/O error, dev dm-4, sector 70 [ 9707.213491] end_request: I/O error, dev dm-4, sector 71 [ 9707.213499] end_request: I/O error, dev dm-4, sector 64 [ 9707.213505] end_request: I/O error, dev dm-4, sector 65 [ 9707.213518] end_request: I/O error, dev dm-4, sector 66 [ 9707.213527] end_request: I/O error, dev dm-4, sector 67 [ 9707.213533] end_request: I/O error, dev dm-4, sector 68 [ 9707.213540] end_request: I/O error, dev dm-4, sector 69 [ 9707.213545] end_request: I/O error, dev dm-4, sector 70 [ 9707.213551] end_request: I/O error, dev dm-4, sector 71 [ 9707.213559] end_request: I/O error, dev dm-4, sector 64 [ 9707.213565] end_request: I/O error, dev dm-4, sector 65 [ 9707.213571] end_request: I/O error, dev dm-4, sector 66 [ 9707.213576] end_request: I/O error, dev dm-4, sector 67 [ 9707.213582] end_request: I/O error, dev dm-4, sector 68 [ 9707.213588] end_request: I/O error, dev dm-4, sector 69 [ 9707.213593] end_request: I/O error, dev dm-4, sector 70 [ 9707.213599] end_request: I/O error, dev dm-4, sector 71 [ 9707.213606] end_request: I/O error, dev dm-4, sector 64 [ 9707.213612] end_request: I/O error, dev dm-4, sector 65 [ 9707.213618] end_request: I/O error, dev dm-4, sector 66 [ 9707.213623] end_request: I/O error, dev dm-4, sector 67 [ 9707.213629] end_request: I/O error, dev dm-4, sector 68 [ 9707.213635] end_request: I/O error, dev dm-4, sector 69 [ 9707.213640] end_request: I/O error, dev dm-4, sector 70 [ 9707.213646] end_request: I/O error, dev dm-4, sector 71 [ 9707.213653] end_request: I/O error, dev dm-4, sector 64 [ 9707.213659] end_request: I/O error, dev dm-4, sector 65 [ 9707.213665] end_request: I/O error, dev dm-4, sector 66 [ 9707.213671] end_request: I/O error, dev dm-4, sector 67 [ 9707.213677] end_request: I/O error, dev dm-4, sector 68 [ 9707.213682] end_request: I/O error, dev dm-4, sector 69 [ 9707.213688] end_request: I/O error, dev dm-4, sector 70 [ 9707.213693] end_request: I/O error, dev dm-4, sector 71 [ 9707.213701] end_request: I/O error, dev dm-4, sector 64 [ 9707.213707] end_request: I/O error, dev dm-4, sector 65 [ 9707.213712] end_request: I/O error, dev dm-4, sector 66 [ 9707.213718] end_request: I/O error, dev dm-4, sector 67 [ 9707.213724] end_request: I/O error, dev dm-4, sector 68 [ 9707.213729] end_request: I/O error, dev dm-4, sector 69 [ 9707.213735] end_request: I/O error, dev dm-4, sector 70 [ 9707.213741] end_request: I/O error, dev dm-4, sector 71 [ 9707.213748] end_request: I/O error, dev dm-4, sector 64 [ 9707.213754] end_request: I/O error, dev dm-4, sector 65 [ 9707.213760] end_request: I/O error, dev dm-4, sector 66 [ 9707.213765] end_request: I/O error, dev dm-4, sector 67 [ 9707.213771] end_request: I/O error, dev dm-4, sector 68 [ 9707.213776] end_request: I/O error, dev dm-4, sector 69 [ 9707.213782] end_request: I/O error, dev dm-4, sector 70 [ 9707.213791] end_request: I/O error, dev dm-4, sector 71 [ 9707.213798] end_request: I/O error, dev dm-4, sector 64 [ 9707.213804] end_request: I/O error, dev dm-4, sector 65 [ 9707.213810] end_request: I/O error, dev dm-4, sector 66 [ 9707.213815] end_request: I/O error, dev dm-4, sector 67 [ 9707.213821] end_request: I/O error, dev dm-4, sector 68 [ 9707.213827] end_request: I/O error, dev dm-4, sector 69 [ 9707.213832] end_request: I/O error, dev dm-4, sector 70 [ 9707.213838] end_request: I/O error, dev dm-4, sector 71 [ 9707.213845] end_request: I/O error, dev dm-4, sector 64 [ 9707.213851] end_request: I/O error, dev dm-4, sector 65 [ 9707.213857] end_request: I/O error, dev dm-4, sector 66 [ 9707.213862] end_request: I/O error, dev dm-4, sector 67 [ 9707.213868] end_request: I/O error, dev dm-4, sector 68 [ 9707.213873] end_request: I/O error, dev dm-4, sector 69 [ 9707.213879] end_request: I/O error, dev dm-4, sector 70 [ 9707.213885] end_request: I/O error, dev dm-4, sector 71 [ 9707.213892] end_request: I/O error, dev dm-4, sector 256 [ 9707.213898] end_request: I/O error, dev dm-4, sector 257 [ 9707.213904] end_request: I/O error, dev dm-4, sector 258 [ 9707.213909] end_request: I/O error, dev dm-4, sector 259 [ 9707.213915] end_request: I/O error, dev dm-4, sector 260 [ 9707.213921] end_request: I/O error, dev dm-4, sector 261 [ 9707.213926] end_request: I/O error, dev dm-4, sector 262 [ 9707.213932] end_request: I/O error, dev dm-4, sector 263 [ 9707.213939] end_request: I/O error, dev dm-4, sector 256 [ 9707.213945] end_request: I/O error, dev dm-4, sector 257 [ 9707.213951] end_request: I/O error, dev dm-4, sector 258 [ 9707.213956] end_request: I/O error, dev dm-4, sector 259 [ 9707.213962] end_request: I/O error, dev dm-4, sector 260 [ 9707.213967] end_request: I/O error, dev dm-4, sector 261 [ 9707.213973] end_request: I/O error, dev dm-4, sector 262 [ 9707.213979] end_request: I/O error, dev dm-4, sector 263 [ 9707.213987] end_request: I/O error, dev dm-4, sector 264 [ 9707.213992] end_request: I/O error, dev dm-4, sector 265 [ 9707.213998] end_request: I/O error, dev dm-4, sector 266 [ 9707.214004] end_request: I/O error, dev dm-4, sector 267 [ 9707.214009] end_request: I/O error, dev dm-4, sector 268 [ 9707.214015] end_request: I/O error, dev dm-4, sector 269 [ 9707.214020] end_request: I/O error, dev dm-4, sector 270 [ 9707.214026] end_request: I/O error, dev dm-4, sector 271 [ 9707.214033] end_request: I/O error, dev dm-4, sector 264 [ 9707.214039] end_request: I/O error, dev dm-4, sector 265 [ 9707.214045] end_request: I/O error, dev dm-4, sector 266 [ 9707.214051] end_request: I/O error, dev dm-4, sector 267 [ 9707.214056] end_request: I/O error, dev dm-4, sector 268 [ 9707.214062] end_request: I/O error, dev dm-4, sector 269 [ 9707.214068] end_request: I/O error, dev dm-4, sector 270 [ 9707.214073] end_request: I/O error, dev dm-4, sector 271 [ 9707.214081] end_request: I/O error, dev dm-4, sector 272 [ 9707.214087] end_request: I/O error, dev dm-4, sector 273 [ 9707.214092] end_request: I/O error, dev dm-4, sector 274 [ 9707.214098] end_request: I/O error, dev dm-4, sector 275 [ 9707.214104] end_request: I/O error, dev dm-4, sector 276 [ 9707.214109] end_request: I/O error, dev dm-4, sector 277 [ 9707.214115] end_request: I/O error, dev dm-4, sector 278 [ 9707.214120] end_request: I/O error, dev dm-4, sector 279 [ 9707.214128] end_request: I/O error, dev dm-4, sector 272 [ 9707.214134] end_request: I/O error, dev dm-4, sector 273 [ 9707.214139] end_request: I/O error, dev dm-4, sector 274 [ 9707.214145] end_request: I/O error, dev dm-4, sector 275 [ 9707.214150] end_request: I/O error, dev dm-4, sector 276 [ 9707.214156] end_request: I/O error, dev dm-4, sector 277 [ 9707.214162] end_request: I/O error, dev dm-4, sector 278 [ 9707.214168] end_request: I/O error, dev dm-4, sector 279 [ 9707.214175] end_request: I/O error, dev dm-4, sector 768 [ 9707.214181] end_request: I/O error, dev dm-4, sector 769 [ 9707.214187] end_request: I/O error, dev dm-4, sector 770 [ 9707.214193] end_request: I/O error, dev dm-4, sector 771 [ 9707.214198] end_request: I/O error, dev dm-4, sector 772 [ 9707.214204] end_request: I/O error, dev dm-4, sector 773 [ 9707.214209] end_request: I/O error, dev dm-4, sector 774 [ 9707.214215] end_request: I/O error, dev dm-4, sector 775 [ 9707.214223] end_request: I/O error, dev dm-4, sector 768 [ 9707.214228] end_request: I/O error, dev dm-4, sector 769 [ 9707.214234] end_request: I/O error, dev dm-4, sector 770 [ 9707.214240] end_request: I/O error, dev dm-4, sector 771 [ 9707.214245] end_request: I/O error, dev dm-4, sector 772 [ 9707.214251] end_request: I/O error, dev dm-4, sector 773 [ 9707.214257] end_request: I/O error, dev dm-4, sector 774 [ 9707.214262] end_request: I/O error, dev dm-4, sector 775 [ 9707.214270] end_request: I/O error, dev dm-4, sector 776 [ 9707.214276] end_request: I/O error, dev dm-4, sector 777 [ 9707.214282] end_request: I/O error, dev dm-4, sector 778 [ 9707.214287] end_request: I/O error, dev dm-4, sector 779 [ 9707.214293] end_request: I/O error, dev dm-4, sector 780 [ 9707.214299] end_request: I/O error, dev dm-4, sector 781 [ 9707.214304] end_request: I/O error, dev dm-4, sector 782 [ 9707.214310] end_request: I/O error, dev dm-4, sector 783 [ 9707.214317] end_request: I/O error, dev dm-4, sector 776 [ 9707.214323] end_request: I/O error, dev dm-4, sector 777 [ 9707.214329] end_request: I/O error, dev dm-4, sector 778 [ 9707.214334] end_request: I/O error, dev dm-4, sector 779 [ 9707.214340] end_request: I/O error, dev dm-4, sector 780 [ 9707.214345] end_request: I/O error, dev dm-4, sector 781 [ 9707.214351] end_request: I/O error, dev dm-4, sector 782 [ 9707.214357] end_request: I/O error, dev dm-4, sector 783 [ 9707.214364] end_request: I/O error, dev dm-4, sector 784 [ 9707.214370] end_request: I/O error, dev dm-4, sector 785 [ 9707.214376] end_request: I/O error, dev dm-4, sector 786 [ 9707.214382] end_request: I/O error, dev dm-4, sector 787 [ 9707.214387] end_request: I/O error, dev dm-4, sector 788 [ 9707.214393] end_request: I/O error, dev dm-4, sector 789 [ 9707.214398] end_request: I/O error, dev dm-4, sector 790 [ 9707.214404] end_request: I/O error, dev dm-4, sector 791 [ 9707.214411] end_request: I/O error, dev dm-4, sector 784 [ 9707.214417] end_request: I/O error, dev dm-4, sector 785 [ 9707.214423] end_request: I/O error, dev dm-4, sector 786 [ 9707.214428] end_request: I/O error, dev dm-4, sector 787 [ 9707.214434] end_request: I/O error, dev dm-4, sector 788 [ 9707.214439] end_request: I/O error, dev dm-4, sector 789 [ 9707.214445] end_request: I/O error, dev dm-4, sector 790 [ 9707.214451] end_request: I/O error, dev dm-4, sector 791 [ 9707.214458] end_request: I/O error, dev dm-4, sector 0 [ 9707.214464] end_request: I/O error, dev dm-4, sector 1 [ 9707.214470] end_request: I/O error, dev dm-4, sector 2 [ 9707.214475] end_request: I/O error, dev dm-4, sector 3 [ 9707.214481] end_request: I/O error, dev dm-4, sector 4 [ 9707.214486] end_request: I/O error, dev dm-4, sector 5 [ 9707.214492] end_request: I/O error, dev dm-4, sector 6 [ 9707.214498] end_request: I/O error, dev dm-4, sector 7 [ 9707.214505] end_request: I/O error, dev dm-4, sector 0 [ 9707.214518] end_request: I/O error, dev dm-4, sector 1 [ 9707.214524] end_request: I/O error, dev dm-4, sector 2 [ 9707.214529] end_request: I/O error, dev dm-4, sector 3 [ 9707.214535] end_request: I/O error, dev dm-4, sector 4 [ 9707.214541] end_request: I/O error, dev dm-4, sector 5 [ 9707.214546] end_request: I/O error, dev dm-4, sector 6 [ 9707.214552] end_request: I/O error, dev dm-4, sector 7 [ 9707.214560] end_request: I/O error, dev dm-4, sector 0 [ 9707.214566] end_request: I/O error, dev dm-4, sector 1 [ 9707.214572] end_request: I/O error, dev dm-4, sector 2 [ 9707.214577] end_request: I/O error, dev dm-4, sector 3 [ 9707.214583] end_request: I/O error, dev dm-4, sector 4 [ 9707.214589] end_request: I/O error, dev dm-4, sector 5 [ 9707.214594] end_request: I/O error, dev dm-4, sector 6 [ 9707.214600] end_request: I/O error, dev dm-4, sector 7 [ 9707.214608] end_request: I/O error, dev dm-4, sector 0 [ 9707.214614] end_request: I/O error, dev dm-4, sector 1 [ 9707.214619] end_request: I/O error, dev dm-4, sector 2 [ 9707.214625] end_request: I/O error, dev dm-4, sector 3 [ 9707.214630] end_request: I/O error, dev dm-4, sector 4 [ 9707.214636] end_request: I/O error, dev dm-4, sector 5 [ 9707.214642] end_request: I/O error, dev dm-4, sector 6 [ 9707.214647] end_request: I/O error, dev dm-4, sector 7 [ 9707.214655] end_request: I/O error, dev dm-4, sector 0 [ 9707.214661] end_request: I/O error, dev dm-4, sector 1 [ 9707.214667] end_request: I/O error, dev dm-4, sector 2 [ 9707.214672] end_request: I/O error, dev dm-4, sector 3 [ 9707.214678] end_request: I/O error, dev dm-4, sector 4 [ 9707.214684] end_request: I/O error, dev dm-4, sector 5 [ 9707.214689] end_request: I/O error, dev dm-4, sector 6 [ 9707.214695] end_request: I/O error, dev dm-4, sector 7 [ 9707.214703] end_request: I/O error, dev dm-4, sector 16 [ 9707.214709] end_request: I/O error, dev dm-4, sector 17 [ 9707.214714] end_request: I/O error, dev dm-4, sector 18 [ 9707.214720] end_request: I/O error, dev dm-4, sector 19 [ 9707.214726] end_request: I/O error, dev dm-4, sector 20 [ 9707.214731] end_request: I/O error, dev dm-4, sector 21 [ 9707.214737] end_request: I/O error, dev dm-4, sector 22 [ 9707.214743] end_request: I/O error, dev dm-4, sector 23 [ 9707.214750] end_request: I/O error, dev dm-4, sector 0 [ 9707.214756] end_request: I/O error, dev dm-4, sector 1 [ 9707.214762] end_request: I/O error, dev dm-4, sector 2 [ 9707.214767] end_request: I/O error, dev dm-4, sector 3 [ 9707.214773] end_request: I/O error, dev dm-4, sector 4 [ 9707.214779] end_request: I/O error, dev dm-4, sector 5 [ 9707.214784] end_request: I/O error, dev dm-4, sector 6 [ 9707.214790] end_request: I/O error, dev dm-4, sector 7 [ 9707.214797] end_request: I/O error, dev dm-4, sector 0 [ 9707.214803] end_request: I/O error, dev dm-4, sector 1 [ 9707.214809] end_request: I/O error, dev dm-4, sector 2 [ 9707.214815] end_request: I/O error, dev dm-4, sector 3 [ 9707.214820] end_request: I/O error, dev dm-4, sector 4 [ 9707.214826] end_request: I/O error, dev dm-4, sector 5 [ 9707.214831] end_request: I/O error, dev dm-4, sector 6 [ 9707.214837] end_request: I/O error, dev dm-4, sector 7 [ 9707.214845] end_request: I/O error, dev dm-4, sector 0 [ 9707.214851] end_request: I/O error, dev dm-4, sector 1 [ 9707.214856] end_request: I/O error, dev dm-4, sector 2 [ 9707.214862] end_request: I/O error, dev dm-4, sector 3 [ 9707.214867] end_request: I/O error, dev dm-4, sector 4 [ 9707.214873] end_request: I/O error, dev dm-4, sector 5 [ 9707.214879] end_request: I/O error, dev dm-4, sector 6 [ 9707.214884] end_request: I/O error, dev dm-4, sector 7 [ 9707.214892] end_request: I/O error, dev dm-4, sector 0 [ 9707.214898] end_request: I/O error, dev dm-4, sector 1 [ 9707.214903] end_request: I/O error, dev dm-4, sector 2 [ 9707.214909] end_request: I/O error, dev dm-4, sector 3 [ 9707.214915] end_request: I/O error, dev dm-4, sector 4 [ 9707.214920] end_request: I/O error, dev dm-4, sector 5 [ 9707.214926] end_request: I/O error, dev dm-4, sector 6 [ 9707.214931] end_request: I/O error, dev dm-4, sector 7 [ 9707.214939] end_request: I/O error, dev dm-4, sector 0 [ 9707.214945] end_request: I/O error, dev dm-4, sector 1 [ 9707.214950] end_request: I/O error, dev dm-4, sector 2 [ 9707.214956] end_request: I/O error, dev dm-4, sector 3 [ 9707.214962] end_request: I/O error, dev dm-4, sector 4 [ 9707.214967] end_request: I/O error, dev dm-4, sector 5 [ 9707.214973] end_request: I/O error, dev dm-4, sector 6 [ 9707.214979] end_request: I/O error, dev dm-4, sector 7 [ 9707.214986] end_request: I/O error, dev dm-4, sector 0 [ 9707.214992] end_request: I/O error, dev dm-4, sector 1 [ 9707.214998] end_request: I/O error, dev dm-4, sector 2 [ 9707.215003] end_request: I/O error, dev dm-4, sector 3 [ 9707.215009] end_request: I/O error, dev dm-4, sector 4 [ 9707.215015] end_request: I/O error, dev dm-4, sector 5 [ 9707.215023] end_request: I/O error, dev dm-4, sector 6 [ 9707.215029] end_request: I/O error, dev dm-4, sector 7 [ 9707.215036] end_request: I/O error, dev dm-4, sector 0 [ 9707.215042] end_request: I/O error, dev dm-4, sector 1 [ 9707.215047] end_request: I/O error, dev dm-4, sector 2 [ 9707.215053] end_request: I/O error, dev dm-4, sector 3 [ 9707.215059] end_request: I/O error, dev dm-4, sector 4 [ 9707.215064] end_request: I/O error, dev dm-4, sector 5 [ 9707.215070] end_request: I/O error, dev dm-4, sector 6 [ 9707.215075] end_request: I/O error, dev dm-4, sector 7 [ 9707.215083] end_request: I/O error, dev dm-4, sector 0 [ 9707.215089] end_request: I/O error, dev dm-4, sector 1 [ 9707.215094] end_request: I/O error, dev dm-4, sector 2 [ 9707.215100] end_request: I/O error, dev dm-4, sector 3 [ 9707.215106] end_request: I/O error, dev dm-4, sector 4 [ 9707.215111] end_request: I/O error, dev dm-4, sector 5 [ 9707.215117] end_request: I/O error, dev dm-4, sector 6 [ 9707.215122] end_request: I/O error, dev dm-4, sector 7 [ 9707.215130] end_request: I/O error, dev dm-4, sector 0 [ 9707.215136] end_request: I/O error, dev dm-4, sector 1 [ 9707.215141] end_request: I/O error, dev dm-4, sector 2 [ 9707.215147] end_request: I/O error, dev dm-4, sector 3 [ 9707.215153] end_request: I/O error, dev dm-4, sector 4 [ 9707.215158] end_request: I/O error, dev dm-4, sector 5 [ 9707.215164] end_request: I/O error, dev dm-4, sector 6 [ 9707.215169] end_request: I/O error, dev dm-4, sector 7 [ 9707.215177] end_request: I/O error, dev dm-4, sector 0 [ 9707.215183] end_request: I/O error, dev dm-4, sector 1 [ 9707.215188] end_request: I/O error, dev dm-4, sector 2 [ 9707.215194] end_request: I/O error, dev dm-4, sector 3 [ 9707.215199] end_request: I/O error, dev dm-4, sector 4 [ 9707.215205] end_request: I/O error, dev dm-4, sector 5 [ 9707.215211] end_request: I/O error, dev dm-4, sector 6 [ 9707.215216] end_request: I/O error, dev dm-4, sector 7 [ 9707.215223] end_request: I/O error, dev dm-4, sector 0 [ 9707.215229] end_request: I/O error, dev dm-4, sector 1 [ 9707.215235] end_request: I/O error, dev dm-4, sector 2 [ 9707.215241] end_request: I/O error, dev dm-4, sector 3 [ 9707.215246] end_request: I/O error, dev dm-4, sector 4 [ 9707.215252] end_request: I/O error, dev dm-4, sector 5 [ 9707.215258] end_request: I/O error, dev dm-4, sector 6 [ 9707.215263] end_request: I/O error, dev dm-4, sector 7 [ 9707.215271] end_request: I/O error, dev dm-4, sector 0 [ 9707.215277] end_request: I/O error, dev dm-4, sector 1 [ 9707.215282] end_request: I/O error, dev dm-4, sector 2 [ 9707.215288] end_request: I/O error, dev dm-4, sector 3 [ 9707.215293] end_request: I/O error, dev dm-4, sector 4 [ 9707.215299] end_request: I/O error, dev dm-4, sector 5 [ 9707.215305] end_request: I/O error, dev dm-4, sector 6 [ 9707.215310] end_request: I/O error, dev dm-4, sector 7 [ 9707.215318] end_request: I/O error, dev dm-4, sector 128 [ 9707.215324] end_request: I/O error, dev dm-4, sector 129 [ 9707.215329] end_request: I/O error, dev dm-4, sector 130 [ 9707.215335] end_request: I/O error, dev dm-4, sector 131 [ 9707.215341] end_request: I/O error, dev dm-4, sector 132 [ 9707.215346] end_request: I/O error, dev dm-4, sector 133 [ 9707.215352] end_request: I/O error, dev dm-4, sector 134 [ 9707.215358] end_request: I/O error, dev dm-4, sector 135 [ 9707.215365] end_request: I/O error, dev dm-4, sector 128 [ 9707.215371] end_request: I/O error, dev dm-4, sector 129 [ 9707.215377] end_request: I/O error, dev dm-4, sector 130 [ 9707.215383] end_request: I/O error, dev dm-4, sector 131 [ 9707.215388] end_request: I/O error, dev dm-4, sector 132 [ 9707.215394] end_request: I/O error, dev dm-4, sector 133 [ 9707.215399] end_request: I/O error, dev dm-4, sector 134 [ 9707.215405] end_request: I/O error, dev dm-4, sector 135 [ 9707.215413] end_request: I/O error, dev dm-4, sector 16 [ 9707.215418] end_request: I/O error, dev dm-4, sector 17 [ 9707.215424] end_request: I/O error, dev dm-4, sector 18 [ 9707.215430] end_request: I/O error, dev dm-4, sector 19 [ 9707.215435] end_request: I/O error, dev dm-4, sector 20 [ 9707.215441] end_request: I/O error, dev dm-4, sector 21 [ 9707.215447] end_request: I/O error, dev dm-4, sector 22 [ 9707.215452] end_request: I/O error, dev dm-4, sector 23 [ 9707.215460] end_request: I/O error, dev dm-4, sector 0 [ 9707.215465] end_request: I/O error, dev dm-4, sector 1 [ 9707.215471] end_request: I/O error, dev dm-4, sector 2 [ 9707.215477] end_request: I/O error, dev dm-4, sector 3 [ 9707.215482] end_request: I/O error, dev dm-4, sector 4 [ 9707.215488] end_request: I/O error, dev dm-4, sector 5 [ 9707.215494] end_request: I/O error, dev dm-4, sector 6 [ 9707.215499] end_request: I/O error, dev dm-4, sector 7 [ 9707.215514] end_request: I/O error, dev dm-4, sector 0 [ 9707.215520] end_request: I/O error, dev dm-4, sector 1 [ 9707.215526] end_request: I/O error, dev dm-4, sector 2 [ 9707.215532] end_request: I/O error, dev dm-4, sector 3 [ 9707.215537] end_request: I/O error, dev dm-4, sector 4 [ 9707.215543] end_request: I/O error, dev dm-4, sector 5 [ 9707.215549] end_request: I/O error, dev dm-4, sector 6 [ 9707.215554] end_request: I/O error, dev dm-4, sector 7 [ 9707.215562] end_request: I/O error, dev dm-4, sector 8 [ 9707.215568] end_request: I/O error, dev dm-4, sector 9 [ 9707.215573] end_request: I/O error, dev dm-4, sector 10 [ 9707.215579] end_request: I/O error, dev dm-4, sector 11 [ 9707.215585] end_request: I/O error, dev dm-4, sector 12 [ 9707.215590] end_request: I/O error, dev dm-4, sector 13 [ 9707.215596] end_request: I/O error, dev dm-4, sector 14 [ 9707.215601] end_request: I/O error, dev dm-4, sector 15 [ 9707.215609] end_request: I/O error, dev dm-4, sector 16 [ 9707.215615] end_request: I/O error, dev dm-4, sector 17 [ 9707.215620] end_request: I/O error, dev dm-4, sector 18 [ 9707.215626] end_request: I/O error, dev dm-4, sector 19 [ 9707.215632] end_request: I/O error, dev dm-4, sector 20 [ 9707.215637] end_request: I/O error, dev dm-4, sector 21 [ 9707.215643] end_request: I/O error, dev dm-4, sector 22 [ 9707.215649] end_request: I/O error, dev dm-4, sector 23 [ 9707.215656] end_request: I/O error, dev dm-4, sector 0 [ 9707.215662] end_request: I/O error, dev dm-4, sector 1 [ 9707.215668] end_request: I/O error, dev dm-4, sector 2 [ 9707.215673] end_request: I/O error, dev dm-4, sector 3 [ 9707.215679] end_request: I/O error, dev dm-4, sector 4 [ 9707.215685] end_request: I/O error, dev dm-4, sector 5 [ 9707.215690] end_request: I/O error, dev dm-4, sector 6 [ 9707.215696] end_request: I/O error, dev dm-4, sector 7 [ 9707.215704] end_request: I/O error, dev dm-4, sector 0 [ 9707.215709] end_request: I/O error, dev dm-4, sector 1 [ 9707.215715] end_request: I/O error, dev dm-4, sector 2 [ 9707.215721] end_request: I/O error, dev dm-4, sector 3 [ 9707.215726] end_request: I/O error, dev dm-4, sector 4 [ 9707.215732] end_request: I/O error, dev dm-4, sector 5 [ 9707.215738] end_request: I/O error, dev dm-4, sector 6 [ 9707.215743] end_request: I/O error, dev dm-4, sector 7 [ 9707.215751] end_request: I/O error, dev dm-4, sector 0 [ 9707.215757] end_request: I/O error, dev dm-4, sector 1 [ 9707.215762] end_request: I/O error, dev dm-4, sector 2 [ 9707.215768] end_request: I/O error, dev dm-4, sector 3 [ 9707.215774] end_request: I/O error, dev dm-4, sector 4 [ 9707.215779] end_request: I/O error, dev dm-4, sector 5 [ 9707.215785] end_request: I/O error, dev dm-4, sector 6 [ 9707.215791] end_request: I/O error, dev dm-4, sector 7 [ 9707.215798] end_request: I/O error, dev dm-4, sector 0 [ 9707.215804] end_request: I/O error, dev dm-4, sector 1 [ 9707.215810] end_request: I/O error, dev dm-4, sector 2 [ 9707.215815] end_request: I/O error, dev dm-4, sector 3 [ 9707.215821] end_request: I/O error, dev dm-4, sector 4 [ 9707.215826] end_request: I/O error, dev dm-4, sector 5 [ 9707.215832] end_request: I/O error, dev dm-4, sector 6 [ 9707.215838] end_request: I/O error, dev dm-4, sector 7 [ 9707.215845] end_request: I/O error, dev dm-4, sector 0 [ 9707.215851] end_request: I/O error, dev dm-4, sector 1 [ 9707.215857] end_request: I/O error, dev dm-4, sector 2 [ 9707.215862] end_request: I/O error, dev dm-4, sector 3 [ 9707.215868] end_request: I/O error, dev dm-4, sector 4 [ 9707.215873] end_request: I/O error, dev dm-4, sector 5 [ 9707.215879] end_request: I/O error, dev dm-4, sector 6 [ 9707.215885] end_request: I/O error, dev dm-4, sector 7 [ 9707.215892] end_request: I/O error, dev dm-4, sector 0 [ 9707.215898] end_request: I/O error, dev dm-4, sector 1 [ 9707.215904] end_request: I/O error, dev dm-4, sector 2 [ 9707.215909] end_request: I/O error, dev dm-4, sector 3 [ 9707.215915] end_request: I/O error, dev dm-4, sector 4 [ 9707.215921] end_request: I/O error, dev dm-4, sector 5 [ 9707.215926] end_request: I/O error, dev dm-4, sector 6 [ 9707.215932] end_request: I/O error, dev dm-4, sector 7 [ 9707.215939] end_request: I/O error, dev dm-4, sector 8 [ 9707.215945] end_request: I/O error, dev dm-4, sector 9 [ 9707.215951] end_request: I/O error, dev dm-4, sector 10 [ 9707.215957] end_request: I/O error, dev dm-4, sector 11 [ 9707.215962] end_request: I/O error, dev dm-4, sector 12 [ 9707.215968] end_request: I/O error, dev dm-4, sector 13 [ 9707.215974] end_request: I/O error, dev dm-4, sector 14 [ 9707.215979] end_request: I/O error, dev dm-4, sector 15 [ 9707.215987] end_request: I/O error, dev dm-4, sector 128 [ 9707.215993] end_request: I/O error, dev dm-4, sector 129 [ 9707.215998] end_request: I/O error, dev dm-4, sector 130 [ 9707.216004] end_request: I/O error, dev dm-4, sector 131 [ 9707.216010] end_request: I/O error, dev dm-4, sector 132 [ 9707.216015] end_request: I/O error, dev dm-4, sector 133 [ 9707.216021] end_request: I/O error, dev dm-4, sector 134 [ 9707.216027] end_request: I/O error, dev dm-4, sector 135 [ 9707.216034] end_request: I/O error, dev dm-4, sector 0 [ 9707.216040] end_request: I/O error, dev dm-4, sector 1 [ 9707.216046] end_request: I/O error, dev dm-4, sector 2 [ 9707.216051] end_request: I/O error, dev dm-4, sector 3 [ 9707.216057] end_request: I/O error, dev dm-4, sector 4 [ 9707.216063] end_request: I/O error, dev dm-4, sector 5 [ 9707.216068] end_request: I/O error, dev dm-4, sector 6 [ 9707.216074] end_request: I/O error, dev dm-4, sector 7 [ 9707.216081] end_request: I/O error, dev dm-4, sector 0 [ 9707.216087] end_request: I/O error, dev dm-4, sector 1 [ 9707.216093] end_request: I/O error, dev dm-4, sector 2 [ 9707.216098] end_request: I/O error, dev dm-4, sector 3 [ 9707.216104] end_request: I/O error, dev dm-4, sector 4 [ 9707.216110] end_request: I/O error, dev dm-4, sector 5 [ 9707.216115] end_request: I/O error, dev dm-4, sector 6 [ 9707.216121] end_request: I/O error, dev dm-4, sector 7 [ 9707.216129] end_request: I/O error, dev dm-4, sector 4096 [ 9707.216135] end_request: I/O error, dev dm-4, sector 4097 [ 9707.216140] end_request: I/O error, dev dm-4, sector 4098 [ 9707.216146] end_request: I/O error, dev dm-4, sector 4099 [ 9707.216152] end_request: I/O error, dev dm-4, sector 4100 [ 9707.216157] end_request: I/O error, dev dm-4, sector 4101 [ 9707.216163] end_request: I/O error, dev dm-4, sector 4102 [ 9707.216169] end_request: I/O error, dev dm-4, sector 4103 [ 9707.311427] end_request: I/O error, dev dm-12, sector 0 [ 9707.311442] end_request: I/O error, dev dm-12, sector 1 [ 9707.311449] end_request: I/O error, dev dm-12, sector 2 [ 9707.311455] end_request: I/O error, dev dm-12, sector 3 [ 9707.311461] end_request: I/O error, dev dm-12, sector 4 [ 9707.311467] end_request: I/O error, dev dm-12, sector 5 [ 9707.311473] end_request: I/O error, dev dm-12, sector 6 [ 9707.311479] end_request: I/O error, dev dm-12, sector 7 [ 9707.311490] end_request: I/O error, dev dm-12, sector 93674283000 [ 9707.311497] end_request: I/O error, dev dm-12, sector 93674283001 [ 9707.311503] end_request: I/O error, dev dm-12, sector 93674283002 [ 9707.311509] end_request: I/O error, dev dm-12, sector 93674283003 [ 9707.311515] end_request: I/O error, dev dm-12, sector 93674283004 [ 9707.311520] end_request: I/O error, dev dm-12, sector 93674283005 [ 9707.311526] end_request: I/O error, dev dm-12, sector 93674283006 [ 9707.311532] end_request: I/O error, dev dm-12, sector 93674283007 [ 9707.311541] end_request: I/O error, dev dm-12, sector 0 [ 9707.311547] end_request: I/O error, dev dm-12, sector 1 [ 9707.311553] end_request: I/O error, dev dm-12, sector 2 [ 9707.311559] end_request: I/O error, dev dm-12, sector 3 [ 9707.311564] end_request: I/O error, dev dm-12, sector 4 [ 9707.311570] end_request: I/O error, dev dm-12, sector 5 [ 9707.311576] end_request: I/O error, dev dm-12, sector 6 [ 9707.311581] end_request: I/O error, dev dm-12, sector 7 [ 9707.311598] end_request: I/O error, dev dm-12, sector 0 [ 9707.311604] end_request: I/O error, dev dm-12, sector 1 [ 9707.311610] end_request: I/O error, dev dm-12, sector 2 [ 9707.311616] end_request: I/O error, dev dm-12, sector 3 [ 9707.311622] end_request: I/O error, dev dm-12, sector 4 [ 9707.311628] end_request: I/O error, dev dm-12, sector 5 [ 9707.311633] end_request: I/O error, dev dm-12, sector 6 [ 9707.311639] end_request: I/O error, dev dm-12, sector 7 [ 9707.311650] end_request: I/O error, dev dm-12, sector 24 [ 9707.311656] end_request: I/O error, dev dm-12, sector 25 [ 9707.311662] end_request: I/O error, dev dm-12, sector 26 [ 9707.311668] end_request: I/O error, dev dm-12, sector 27 [ 9707.311673] end_request: I/O error, dev dm-12, sector 28 [ 9707.311679] end_request: I/O error, dev dm-12, sector 29 [ 9707.311685] end_request: I/O error, dev dm-12, sector 30 [ 9707.311691] end_request: I/O error, dev dm-12, sector 31 [ 9707.327194] end_request: I/O error, dev dm-6, sector 0 [ 9707.327212] end_request: I/O error, dev dm-6, sector 1 [ 9707.327219] end_request: I/O error, dev dm-6, sector 2 [ 9707.327225] end_request: I/O error, dev dm-6, sector 3 [ 9707.327231] end_request: I/O error, dev dm-6, sector 4 [ 9707.327237] end_request: I/O error, dev dm-6, sector 5 [ 9707.327243] end_request: I/O error, dev dm-6, sector 6 [ 9707.327248] end_request: I/O error, dev dm-6, sector 7 [ 9707.327266] end_request: I/O error, dev dm-6, sector 93674283000 [ 9707.327278] end_request: I/O error, dev dm-6, sector 93674283001 [ 9707.327284] end_request: I/O error, dev dm-6, sector 93674283002 [ 9707.327290] end_request: I/O error, dev dm-6, sector 93674283003 [ 9707.327298] end_request: I/O error, dev dm-6, sector 93674283004 [ 9707.327304] end_request: I/O error, dev dm-6, sector 93674283005 [ 9707.327310] end_request: I/O error, dev dm-6, sector 93674283006 [ 9707.327318] end_request: I/O error, dev dm-6, sector 93674283007 [ 9707.327328] end_request: I/O error, dev dm-6, sector 0 [ 9707.327334] end_request: I/O error, dev dm-6, sector 1 [ 9707.327340] end_request: I/O error, dev dm-6, sector 2 [ 9707.327346] end_request: I/O error, dev dm-6, sector 3 [ 9707.327352] end_request: I/O error, dev dm-6, sector 4 [ 9707.327357] end_request: I/O error, dev dm-6, sector 5 [ 9707.327363] end_request: I/O error, dev dm-6, sector 6 [ 9707.327369] end_request: I/O error, dev dm-6, sector 7 [ 9707.327384] end_request: I/O error, dev dm-6, sector 0 [ 9707.327391] end_request: I/O error, dev dm-6, sector 1 [ 9707.327397] end_request: I/O error, dev dm-6, sector 2 [ 9707.327403] end_request: I/O error, dev dm-6, sector 3 [ 9707.327408] end_request: I/O error, dev dm-6, sector 4 [ 9707.327414] end_request: I/O error, dev dm-6, sector 5 [ 9707.327420] end_request: I/O error, dev dm-6, sector 6 [ 9707.327425] end_request: I/O error, dev dm-6, sector 7 [ 9707.327435] end_request: I/O error, dev dm-6, sector 24 [ 9707.327441] end_request: I/O error, dev dm-6, sector 25 [ 9707.327447] end_request: I/O error, dev dm-6, sector 26 [ 9707.327453] end_request: I/O error, dev dm-6, sector 27 [ 9707.327459] end_request: I/O error, dev dm-6, sector 28 [ 9707.327465] end_request: I/O error, dev dm-6, sector 29 [ 9707.327470] end_request: I/O error, dev dm-6, sector 30 [ 9707.327476] end_request: I/O error, dev dm-6, sector 31 [ 9707.328737] end_request: I/O error, dev dm-8, sector 0 [ 9707.328751] end_request: I/O error, dev dm-8, sector 1 [ 9707.328758] end_request: I/O error, dev dm-8, sector 2 [ 9707.328764] end_request: I/O error, dev dm-8, sector 3 [ 9707.328770] end_request: I/O error, dev dm-8, sector 4 [ 9707.328776] end_request: I/O error, dev dm-8, sector 5 [ 9707.328781] end_request: I/O error, dev dm-8, sector 6 [ 9707.328787] end_request: I/O error, dev dm-8, sector 7 [ 9707.328799] end_request: I/O error, dev dm-8, sector 93674283000 [ 9707.328806] end_request: I/O error, dev dm-8, sector 93674283001 [ 9707.328812] end_request: I/O error, dev dm-8, sector 93674283002 [ 9707.328818] end_request: I/O error, dev dm-8, sector 93674283003 [ 9707.328824] end_request: I/O error, dev dm-8, sector 93674283004 [ 9707.328830] end_request: I/O error, dev dm-8, sector 93674283005 [ 9707.328836] end_request: I/O error, dev dm-8, sector 93674283006 [ 9707.328842] end_request: I/O error, dev dm-8, sector 93674283007 [ 9707.328850] end_request: I/O error, dev dm-8, sector 0 [ 9707.328857] end_request: I/O error, dev dm-8, sector 1 [ 9707.328862] end_request: I/O error, dev dm-8, sector 2 [ 9707.328868] end_request: I/O error, dev dm-8, sector 3 [ 9707.328874] end_request: I/O error, dev dm-8, sector 4 [ 9707.328880] end_request: I/O error, dev dm-8, sector 5 [ 9707.328886] end_request: I/O error, dev dm-8, sector 6 [ 9707.328891] end_request: I/O error, dev dm-8, sector 7 [ 9707.328906] end_request: I/O error, dev dm-8, sector 0 [ 9707.328912] end_request: I/O error, dev dm-8, sector 1 [ 9707.328918] end_request: I/O error, dev dm-8, sector 2 [ 9707.328924] end_request: I/O error, dev dm-8, sector 3 [ 9707.328930] end_request: I/O error, dev dm-8, sector 4 [ 9707.328936] end_request: I/O error, dev dm-8, sector 5 [ 9707.328942] end_request: I/O error, dev dm-8, sector 6 [ 9707.328947] end_request: I/O error, dev dm-8, sector 7 [ 9707.328957] end_request: I/O error, dev dm-8, sector 24 [ 9707.328964] end_request: I/O error, dev dm-8, sector 25 [ 9707.328970] end_request: I/O error, dev dm-8, sector 26 [ 9707.328976] end_request: I/O error, dev dm-8, sector 27 [ 9707.328981] end_request: I/O error, dev dm-8, sector 28 [ 9707.328987] end_request: I/O error, dev dm-8, sector 29 [ 9707.328993] end_request: I/O error, dev dm-8, sector 30 [ 9707.328999] end_request: I/O error, dev dm-8, sector 31 [ 9707.331922] end_request: I/O error, dev dm-11, sector 0 [ 9707.331936] end_request: I/O error, dev dm-11, sector 1 [ 9707.331943] end_request: I/O error, dev dm-11, sector 2 [ 9707.331949] end_request: I/O error, dev dm-11, sector 3 [ 9707.331955] end_request: I/O error, dev dm-11, sector 4 [ 9707.331961] end_request: I/O error, dev dm-11, sector 5 [ 9707.331967] end_request: I/O error, dev dm-11, sector 6 [ 9707.331973] end_request: I/O error, dev dm-11, sector 7 [ 9707.331985] end_request: I/O error, dev dm-11, sector 93674283000 [ 9707.331992] end_request: I/O error, dev dm-11, sector 93674283001 [ 9707.331998] end_request: I/O error, dev dm-11, sector 93674283002 [ 9707.332004] end_request: I/O error, dev dm-11, sector 93674283003 [ 9707.332010] end_request: I/O error, dev dm-11, sector 93674283004 [ 9707.332016] end_request: I/O error, dev dm-11, sector 93674283005 [ 9707.332021] end_request: I/O error, dev dm-11, sector 93674283006 [ 9707.332027] end_request: I/O error, dev dm-11, sector 93674283007 [ 9707.332036] end_request: I/O error, dev dm-11, sector 0 [ 9707.332042] end_request: I/O error, dev dm-11, sector 1 [ 9707.332048] end_request: I/O error, dev dm-11, sector 2 [ 9707.332054] end_request: I/O error, dev dm-11, sector 3 [ 9707.332060] end_request: I/O error, dev dm-11, sector 4 [ 9707.332066] end_request: I/O error, dev dm-11, sector 5 [ 9707.332071] end_request: I/O error, dev dm-11, sector 6 [ 9707.332077] end_request: I/O error, dev dm-11, sector 7 [ 9707.332091] end_request: I/O error, dev dm-11, sector 0 [ 9707.332098] end_request: I/O error, dev dm-11, sector 1 [ 9707.332104] end_request: I/O error, dev dm-11, sector 2 [ 9707.332110] end_request: I/O error, dev dm-11, sector 3 [ 9707.332115] end_request: I/O error, dev dm-11, sector 4 [ 9707.332121] end_request: I/O error, dev dm-11, sector 5 [ 9707.332127] end_request: I/O error, dev dm-11, sector 6 [ 9707.332133] end_request: I/O error, dev dm-11, sector 7 [ 9707.332143] end_request: I/O error, dev dm-11, sector 24 [ 9707.332149] end_request: I/O error, dev dm-11, sector 25 [ 9707.332155] end_request: I/O error, dev dm-11, sector 26 [ 9707.332161] end_request: I/O error, dev dm-11, sector 27 [ 9707.332167] end_request: I/O error, dev dm-11, sector 28 [ 9707.332172] end_request: I/O error, dev dm-11, sector 29 [ 9707.332178] end_request: I/O error, dev dm-11, sector 30 [ 9707.332184] end_request: I/O error, dev dm-11, sector 31 [ 9707.339763] end_request: I/O error, dev dm-10, sector 0 [ 9707.339775] end_request: I/O error, dev dm-10, sector 1 [ 9707.339781] end_request: I/O error, dev dm-10, sector 2 [ 9707.339787] end_request: I/O error, dev dm-10, sector 3 [ 9707.339793] end_request: I/O error, dev dm-10, sector 4 [ 9707.339799] end_request: I/O error, dev dm-10, sector 5 [ 9707.339805] end_request: I/O error, dev dm-10, sector 6 [ 9707.339811] end_request: I/O error, dev dm-10, sector 7 [ 9707.339823] end_request: I/O error, dev dm-10, sector 93674283000 [ 9707.339829] end_request: I/O error, dev dm-10, sector 93674283001 [ 9707.339836] end_request: I/O error, dev dm-10, sector 93674283002 [ 9707.339845] end_request: I/O error, dev dm-10, sector 93674283003 [ 9707.339851] end_request: I/O error, dev dm-10, sector 93674283004 [ 9707.339857] end_request: I/O error, dev dm-10, sector 93674283005 [ 9707.339863] end_request: I/O error, dev dm-10, sector 93674283006 [ 9707.339869] end_request: I/O error, dev dm-10, sector 93674283007 [ 9707.339877] end_request: I/O error, dev dm-10, sector 0 [ 9707.339884] end_request: I/O error, dev dm-10, sector 1 [ 9707.339889] end_request: I/O error, dev dm-10, sector 2 [ 9707.339895] end_request: I/O error, dev dm-10, sector 3 [ 9707.339901] end_request: I/O error, dev dm-10, sector 4 [ 9707.339907] end_request: I/O error, dev dm-10, sector 5 [ 9707.339913] end_request: I/O error, dev dm-10, sector 6 [ 9707.339918] end_request: I/O error, dev dm-10, sector 7 [ 9707.339933] end_request: I/O error, dev dm-10, sector 0 [ 9707.339939] end_request: I/O error, dev dm-10, sector 1 [ 9707.339945] end_request: I/O error, dev dm-10, sector 2 [ 9707.339951] end_request: I/O error, dev dm-10, sector 3 [ 9707.339956] end_request: I/O error, dev dm-10, sector 4 [ 9707.339962] end_request: I/O error, dev dm-10, sector 5 [ 9707.339968] end_request: I/O error, dev dm-10, sector 6 [ 9707.339974] end_request: I/O error, dev dm-10, sector 7 [ 9707.339984] end_request: I/O error, dev dm-10, sector 24 [ 9707.339990] end_request: I/O error, dev dm-10, sector 25 [ 9707.339996] end_request: I/O error, dev dm-10, sector 26 [ 9707.340001] end_request: I/O error, dev dm-10, sector 27 [ 9707.340007] end_request: I/O error, dev dm-10, sector 28 [ 9707.340013] end_request: I/O error, dev dm-10, sector 29 [ 9707.340018] end_request: I/O error, dev dm-10, sector 30 [ 9707.340024] end_request: I/O error, dev dm-10, sector 31 [ 9707.348041] end_request: I/O error, dev dm-5, sector 0 [ 9707.348054] end_request: I/O error, dev dm-5, sector 1 [ 9707.348061] end_request: I/O error, dev dm-5, sector 2 [ 9707.348067] end_request: I/O error, dev dm-5, sector 3 [ 9707.348074] end_request: I/O error, dev dm-5, sector 4 [ 9707.348080] end_request: I/O error, dev dm-5, sector 5 [ 9707.348086] end_request: I/O error, dev dm-5, sector 6 [ 9707.348092] end_request: I/O error, dev dm-5, sector 7 [ 9707.348103] end_request: I/O error, dev dm-5, sector 93674283000 [ 9707.348110] end_request: I/O error, dev dm-5, sector 93674283001 [ 9707.348116] end_request: I/O error, dev dm-5, sector 93674283002 [ 9707.348122] end_request: I/O error, dev dm-5, sector 93674283003 [ 9707.348129] end_request: I/O error, dev dm-5, sector 93674283004 [ 9707.348135] end_request: I/O error, dev dm-5, sector 93674283005 [ 9707.348141] end_request: I/O error, dev dm-5, sector 93674283006 [ 9707.348147] end_request: I/O error, dev dm-5, sector 93674283007 [ 9707.348156] end_request: I/O error, dev dm-5, sector 0 [ 9707.348162] end_request: I/O error, dev dm-5, sector 1 [ 9707.348168] end_request: I/O error, dev dm-5, sector 2 [ 9707.348174] end_request: I/O error, dev dm-5, sector 3 [ 9707.348180] end_request: I/O error, dev dm-5, sector 4 [ 9707.348186] end_request: I/O error, dev dm-5, sector 5 [ 9707.348192] end_request: I/O error, dev dm-5, sector 6 [ 9707.348198] end_request: I/O error, dev dm-5, sector 7 [ 9707.348213] end_request: I/O error, dev dm-5, sector 0 [ 9707.348235] end_request: I/O error, dev dm-5, sector 1 [ 9707.348241] end_request: I/O error, dev dm-5, sector 2 [ 9707.348247] end_request: I/O error, dev dm-5, sector 3 [ 9707.348253] end_request: I/O error, dev dm-5, sector 4 [ 9707.348259] end_request: I/O error, dev dm-5, sector 5 [ 9707.348265] end_request: I/O error, dev dm-5, sector 6 [ 9707.348271] end_request: I/O error, dev dm-5, sector 7 [ 9707.348281] end_request: I/O error, dev dm-5, sector 24 [ 9707.348288] end_request: I/O error, dev dm-5, sector 25 [ 9707.348294] end_request: I/O error, dev dm-5, sector 26 [ 9707.348300] end_request: I/O error, dev dm-5, sector 27 [ 9707.348306] end_request: I/O error, dev dm-5, sector 28 [ 9707.348312] end_request: I/O error, dev dm-5, sector 29 [ 9707.348318] end_request: I/O error, dev dm-5, sector 30 [ 9707.348323] end_request: I/O error, dev dm-5, sector 31 [ 9707.349150] end_request: I/O error, dev dm-17, sector 0 [ 9707.349166] end_request: I/O error, dev dm-17, sector 1 [ 9707.349173] end_request: I/O error, dev dm-17, sector 2 [ 9707.349179] end_request: I/O error, dev dm-17, sector 3 [ 9707.349185] end_request: I/O error, dev dm-17, sector 4 [ 9707.349191] end_request: I/O error, dev dm-17, sector 5 [ 9707.349197] end_request: I/O error, dev dm-17, sector 6 [ 9707.349203] end_request: I/O error, dev dm-17, sector 7 [ 9707.349223] end_request: I/O error, dev dm-17, sector 93674283000 [ 9707.349234] end_request: I/O error, dev dm-17, sector 93674283001 [ 9707.349241] end_request: I/O error, dev dm-17, sector 93674283002 [ 9707.349247] end_request: I/O error, dev dm-17, sector 93674283003 [ 9707.349253] end_request: I/O error, dev dm-17, sector 93674283004 [ 9707.349259] end_request: I/O error, dev dm-17, sector 93674283005 [ 9707.349265] end_request: I/O error, dev dm-17, sector 93674283006 [ 9707.349271] end_request: I/O error, dev dm-17, sector 93674283007 [ 9707.349281] end_request: I/O error, dev dm-17, sector 0 [ 9707.349287] end_request: I/O error, dev dm-17, sector 1 [ 9707.349293] end_request: I/O error, dev dm-17, sector 2 [ 9707.349299] end_request: I/O error, dev dm-17, sector 3 [ 9707.349305] end_request: I/O error, dev dm-17, sector 4 [ 9707.349311] end_request: I/O error, dev dm-17, sector 5 [ 9707.349317] end_request: I/O error, dev dm-17, sector 6 [ 9707.349323] end_request: I/O error, dev dm-17, sector 7 [ 9707.349339] end_request: I/O error, dev dm-17, sector 0 [ 9707.349346] end_request: I/O error, dev dm-17, sector 1 [ 9707.349352] end_request: I/O error, dev dm-17, sector 2 [ 9707.349358] end_request: I/O error, dev dm-17, sector 3 [ 9707.349365] end_request: I/O error, dev dm-17, sector 4 [ 9707.349372] end_request: I/O error, dev dm-17, sector 5 [ 9707.349378] end_request: I/O error, dev dm-17, sector 6 [ 9707.349384] end_request: I/O error, dev dm-17, sector 7 [ 9707.349393] end_request: I/O error, dev dm-17, sector 24 [ 9707.349400] end_request: I/O error, dev dm-17, sector 25 [ 9707.349406] end_request: I/O error, dev dm-17, sector 26 [ 9707.349412] end_request: I/O error, dev dm-17, sector 27 [ 9707.349418] end_request: I/O error, dev dm-17, sector 28 [ 9707.349424] end_request: I/O error, dev dm-17, sector 29 [ 9707.349430] end_request: I/O error, dev dm-17, sector 30 [ 9707.349436] end_request: I/O error, dev dm-17, sector 31 [ 9707.392587] end_request: I/O error, dev dm-4, sector 0 [ 9707.392602] end_request: I/O error, dev dm-4, sector 1 [ 9707.392609] end_request: I/O error, dev dm-4, sector 2 [ 9707.392615] end_request: I/O error, dev dm-4, sector 3 [ 9707.392621] end_request: I/O error, dev dm-4, sector 4 [ 9707.392627] end_request: I/O error, dev dm-4, sector 5 [ 9707.392633] end_request: I/O error, dev dm-4, sector 6 [ 9707.392639] end_request: I/O error, dev dm-4, sector 7 [ 9707.392651] end_request: I/O error, dev dm-4, sector 93674283000 [ 9707.392657] end_request: I/O error, dev dm-4, sector 93674283001 [ 9707.392663] end_request: I/O error, dev dm-4, sector 93674283002 [ 9707.392669] end_request: I/O error, dev dm-4, sector 93674283003 [ 9707.392675] end_request: I/O error, dev dm-4, sector 93674283004 [ 9707.392681] end_request: I/O error, dev dm-4, sector 93674283005 [ 9707.392687] end_request: I/O error, dev dm-4, sector 93674283006 [ 9707.392694] end_request: I/O error, dev dm-4, sector 93674283007 [ 9707.392703] end_request: I/O error, dev dm-4, sector 0 [ 9707.392709] end_request: I/O error, dev dm-4, sector 1 [ 9707.392715] end_request: I/O error, dev dm-4, sector 2 [ 9707.392721] end_request: I/O error, dev dm-4, sector 3 [ 9707.392727] end_request: I/O error, dev dm-4, sector 4 [ 9707.392733] end_request: I/O error, dev dm-4, sector 5 [ 9707.392738] end_request: I/O error, dev dm-4, sector 6 [ 9707.392744] end_request: I/O error, dev dm-4, sector 7 [ 9707.392759] end_request: I/O error, dev dm-4, sector 0 [ 9707.392765] end_request: I/O error, dev dm-4, sector 1 [ 9707.392772] end_request: I/O error, dev dm-4, sector 2 [ 9707.392777] end_request: I/O error, dev dm-4, sector 3 [ 9707.392784] end_request: I/O error, dev dm-4, sector 4 [ 9707.392789] end_request: I/O error, dev dm-4, sector 5 [ 9707.392795] end_request: I/O error, dev dm-4, sector 6 [ 9707.392801] end_request: I/O error, dev dm-4, sector 7 [ 9707.392810] end_request: I/O error, dev dm-4, sector 24 [ 9707.392817] end_request: I/O error, dev dm-4, sector 25 [ 9707.392823] end_request: I/O error, dev dm-4, sector 26 [ 9707.392829] end_request: I/O error, dev dm-4, sector 27 [ 9707.392835] end_request: I/O error, dev dm-4, sector 28 [ 9707.392840] end_request: I/O error, dev dm-4, sector 29 [ 9707.392846] end_request: I/O error, dev dm-4, sector 30 [ 9707.392852] end_request: I/O error, dev dm-4, sector 31 [ 9708.483744] XFS (dm-8): xfs_log_force: error 5 returned. [ 9722.277632] sd 10:0:0:3: attempting task abort! scmd(ffff883e32b4f0c0) [ 9722.277635] sd 10:0:0:3: [sdak] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.277643] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.277645] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.279380] sd 10:0:0:3: task abort: SUCCESS scmd(ffff883e32b4f0c0) [ 9722.279382] sd 10:0:0:11: attempting task abort! scmd(ffff883e4c343a80) [ 9722.279384] sd 10:0:0:11: [sdam] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.279390] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.279391] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.281340] sd 10:0:0:11: task abort: SUCCESS scmd(ffff883e4c343a80) [ 9722.281342] sd 10:0:0:13: attempting task abort! scmd(ffff883e1bb45dc0) [ 9722.281344] sd 10:0:0:13: [sdao] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.281349] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.281350] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.283067] sd 10:0:0:13: task abort: SUCCESS scmd(ffff883e1bb45dc0) [ 9722.283069] sd 10:0:0:21: attempting task abort! scmd(ffff883e468a3bc0) [ 9722.283071] sd 10:0:0:21: [sdaq] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.283076] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.283078] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.285030] sd 10:0:0:21: task abort: SUCCESS scmd(ffff883e468a3bc0) [ 9722.285032] sd 10:0:0:23: attempting task abort! scmd(ffff883e490e2a80) [ 9722.285034] sd 10:0:0:23: [sdas] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.285039] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.285040] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.286727] sd 10:0:0:23: task abort: SUCCESS scmd(ffff883e490e2a80) [ 9722.286728] sd 10:0:0:31: attempting task abort! scmd(ffff883e378f1580) [ 9722.286730] sd 10:0:0:31: [sdau] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.286735] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.286737] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.288352] sd 10:0:0:31: task abort: SUCCESS scmd(ffff883e378f1580) [ 9722.288353] sd 10:0:0:33: attempting task abort! scmd(ffff883e119bcb80) [ 9722.288355] sd 10:0:0:33: [sdaw] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.288360] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.288362] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.290115] sd 10:0:0:33: task abort: SUCCESS scmd(ffff883e119bcb80) [ 9722.290116] sd 10:0:0:1: attempting task abort! scmd(ffff883e143b85c0) [ 9722.290118] sd 10:0:0:1: [sdai] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9722.290123] scsi target10:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5600), phy(0) [ 9722.290125] scsi target10:0:0: enclosure_logical_id(0x500605b008b36010), slot(0) [ 9722.291939] sd 10:0:0:1: task abort: SUCCESS scmd(ffff883e143b85c0) [ 9723.171675] sd 9:0:0:1: attempting task abort! scmd(ffff883e1eeb7c80) [ 9723.171678] sd 9:0:0:1: [sds] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.171685] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.171687] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.173492] sd 9:0:0:1: task abort: SUCCESS scmd(ffff883e1eeb7c80) [ 9723.173494] sd 9:0:0:3: attempting task abort! scmd(ffff883e1bb45cc0) [ 9723.173496] sd 9:0:0:3: [sdu] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.173501] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.173503] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.175302] sd 9:0:0:3: task abort: SUCCESS scmd(ffff883e1bb45cc0) [ 9723.175304] sd 9:0:0:11: attempting task abort! scmd(ffff884062becdc0) [ 9723.175305] sd 9:0:0:11: [sdw] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.175310] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.175312] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.177133] sd 9:0:0:11: task abort: SUCCESS scmd(ffff884062becdc0) [ 9723.177135] sd 9:0:0:13: attempting task abort! scmd(ffff883e3669d680) [ 9723.177136] sd 9:0:0:13: [sdy] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.177141] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.177143] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.178781] sd 9:0:0:13: task abort: SUCCESS scmd(ffff883e3669d680) [ 9723.178783] sd 9:0:0:21: attempting task abort! scmd(ffff883e14318380) [ 9723.178785] sd 9:0:0:21: [sdaa] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.178790] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.178791] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.180352] sd 9:0:0:21: task abort: SUCCESS scmd(ffff883e14318380) [ 9723.180354] sd 9:0:0:23: attempting task abort! scmd(ffff883e0e980580) [ 9723.180355] sd 9:0:0:23: [sdac] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.180360] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.180362] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.181881] sd 9:0:0:23: task abort: SUCCESS scmd(ffff883e0e980580) [ 9723.181883] sd 9:0:0:31: attempting task abort! scmd(ffff883e4a7999c0) [ 9723.181885] sd 9:0:0:31: [sdae] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.181890] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.181891] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.183759] sd 9:0:0:31: task abort: SUCCESS scmd(ffff883e4a7999c0) [ 9723.183760] sd 9:0:0:33: attempting task abort! scmd(ffff883e409d14c0) [ 9723.183762] sd 9:0:0:33: [sdag] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 9723.183767] scsi target9:0:0: handle(0x0009), sas_address(0x500c0ff1dc3d5400), phy(0) [ 9723.183769] scsi target9:0:0: enclosure_logical_id(0x500605b008b36000), slot(0) [ 9723.185723] sd 9:0:0:33: task abort: SUCCESS scmd(ffff883e409d14c0) [ 9736.965552] XFS (dm-4): xfs_log_force: error 5 returned. [ 9736.965555] XFS (dm-6): xfs_log_force: error 5 returned. [ 9736.965558] XFS (dm-10): xfs_log_force: error 5 returned. [ 9737.093272] XFS (dm-5): xfs_log_force: error 5 returned. [ 9737.093276] XFS (dm-12): xfs_log_force: error 5 returned. [ 9737.093382] XFS (dm-11): xfs_log_force: error 5 returned. [ 9738.498207] XFS (dm-8): xfs_log_force: error 5 returned. [ 9766.980016] XFS (dm-4): xfs_log_force: error 5 returned. [ 9766.980018] XFS (dm-6): xfs_log_force: error 5 returned. [ 9766.980021] XFS (dm-10): xfs_log_force: error 5 returned. [ 9767.107734] XFS (dm-12): xfs_log_force: error 5 returned. [ 9767.107736] XFS (dm-5): xfs_log_force: error 5 returned. [ 9767.107853] XFS (dm-11): xfs_log_force: error 5 returned. [ 9768.512673] XFS (dm-8): xfs_log_force: error 5 returned. [ 9772.093958] igb: diskmgmt2 NIC Link is Down [ 9772.094856] ctrl_br0: port 2(diskmgmt2) entered disabled state [ 9796.994474] XFS (dm-4): xfs_log_force: error 5 returned. [ 9796.994477] XFS (dm-6): xfs_log_force: error 5 returned. [ 9796.994479] XFS (dm-10): xfs_log_force: error 5 returned. [ 9797.122198] XFS (dm-12): xfs_log_force: error 5 returned. [ 9797.122201] XFS (dm-11): xfs_log_force: error 5 returned. [ 9797.122203] XFS (dm-5): xfs_log_force: error 5 returned. [ 9798.527124] XFS (dm-8): xfs_log_force: error 5 returned. [ 9827.008938] XFS (dm-4): xfs_log_force: error 5 returned. [ 9827.008941] XFS (dm-6): xfs_log_force: error 5 returned. [ 9827.008943] XFS (dm-10): xfs_log_force: error 5 returned. [ 9827.136657] XFS (dm-12): xfs_log_force: error 5 returned. [ 9827.136660] XFS (dm-11): xfs_log_force: error 5 returned. [ 9827.136662] XFS (dm-5): xfs_log_force: error 5 returned. [ 9828.541590] XFS (dm-8): xfs_log_force: error 5 returned. [ 9857.023394] XFS (dm-4): xfs_log_force: error 5 returned. [ 9857.023397] XFS (dm-6): xfs_log_force: error 5 returned. [ 9857.023399] XFS (dm-10): xfs_log_force: error 5 returned. [ 9857.151117] XFS (dm-12): xfs_log_force: error 5 returned. [ 9857.151121] XFS (dm-5): xfs_log_force: error 5 returned. [ 9857.151134] XFS (dm-11): xfs_log_force: error 5 returned. [ 9858.556050] XFS (dm-8): xfs_log_force: error 5 returned. [ 9887.037857] XFS (dm-4): xfs_log_force: error 5 returned. [ 9887.037860] XFS (dm-6): xfs_log_force: error 5 returned. [ 9887.037861] XFS (dm-10): xfs_log_force: error 5 returned. [ 9887.165578] XFS (dm-5): xfs_log_force: error 5 returned. [ 9887.165580] XFS (dm-12): xfs_log_force: error 5 returned. [ 9887.165589] XFS (dm-11): xfs_log_force: error 5 returned. [ 9888.570521] XFS (dm-8): xfs_log_force: error 5 returned. [ 9917.052312] XFS (dm-4): xfs_log_force: error 5 returned. [ 9917.052315] XFS (dm-6): xfs_log_force: error 5 returned. [ 9917.052317] XFS (dm-10): xfs_log_force: error 5 returned. [ 9917.180029] XFS (dm-5): xfs_log_force: error 5 returned. [ 9917.180032] XFS (dm-12): xfs_log_force: error 5 returned. [ 9917.180054] XFS (dm-11): xfs_log_force: error 5 returned. [ 9918.584961] XFS (dm-8): xfs_log_force: error 5 returned. [ 9947.066762] XFS (dm-4): xfs_log_force: error 5 returned. [ 9947.066764] XFS (dm-6): xfs_log_force: error 5 returned. [ 9947.066766] XFS (dm-10): xfs_log_force: error 5 returned. [ 9947.194487] XFS (dm-12): xfs_log_force: error 5 returned. [ 9947.194489] XFS (dm-5): xfs_log_force: error 5 returned. [ 9947.194492] XFS (dm-11): xfs_log_force: error 5 returned. [ 9948.599419] XFS (dm-8): xfs_log_force: error 5 returned. [ 9977.081216] XFS (dm-4): xfs_log_force: error 5 returned. [ 9977.081219] XFS (dm-6): xfs_log_force: error 5 returned. [ 9977.081221] XFS (dm-10): xfs_log_force: error 5 returned. [ 9977.208935] XFS (dm-12): xfs_log_force: error 5 returned. [ 9977.208937] XFS (dm-5): xfs_log_force: error 5 returned. [ 9977.208949] XFS (dm-11): xfs_log_force: error 5 returned. [ 9978.613866] XFS (dm-8): xfs_log_force: error 5 returned. [10007.095664] XFS (dm-4): xfs_log_force: error 5 returned. [10007.095666] XFS (dm-6): xfs_log_force: error 5 returned. [10007.095668] XFS (dm-10): xfs_log_force: error 5 returned. [10007.223389] XFS (dm-12): xfs_log_force: error 5 returned. [10007.223391] XFS (dm-5): xfs_log_force: error 5 returned. [10007.223397] XFS (dm-11): xfs_log_force: error 5 returned. [10008.628320] XFS (dm-8): xfs_log_force: error 5 returned. [10037.110121] XFS (dm-4): xfs_log_force: error 5 returned. [10037.110124] XFS (dm-6): xfs_log_force: error 5 returned. [10037.110126] XFS (dm-10): xfs_log_force: error 5 returned. [10037.237843] XFS (dm-5): xfs_log_force: error 5 returned. [10037.237845] XFS (dm-12): xfs_log_force: error 5 returned. [10037.237848] XFS (dm-11): xfs_log_force: error 5 returned. [10038.642778] XFS (dm-8): xfs_log_force: error 5 returned. [10067.124580] XFS (dm-4): xfs_log_force: error 5 returned. [10067.124583] XFS (dm-6): xfs_log_force: error 5 returned. [10067.124585] XFS (dm-10): xfs_log_force: error 5 returned. [10067.252297] XFS (dm-5): xfs_log_force: error 5 returned. [10067.252300] XFS (dm-12): xfs_log_force: error 5 returned. [10067.252335] XFS (dm-11): xfs_log_force: error 5 returned. [10068.657230] XFS (dm-8): xfs_log_force: error 5 returned. [10097.139033] XFS (dm-4): xfs_log_force: error 5 returned. [10097.139035] XFS (dm-6): xfs_log_force: error 5 returned. [10097.139037] XFS (dm-10): xfs_log_force: error 5 returned. [10097.266757] XFS (dm-12): xfs_log_force: error 5 returned. [10097.266759] XFS (dm-5): xfs_log_force: error 5 returned. [10097.266807] XFS (dm-11): xfs_log_force: error 5 returned. [10098.671688] XFS (dm-8): xfs_log_force: error 5 returned. [10127.153490] XFS (dm-4): xfs_log_force: error 5 returned. [10127.153492] XFS (dm-6): xfs_log_force: error 5 returned. [10127.153494] XFS (dm-10): xfs_log_force: error 5 returned. [10127.281208] XFS (dm-12): xfs_log_force: error 5 returned. [10127.281210] XFS (dm-5): xfs_log_force: error 5 returned. [10127.281283] XFS (dm-11): xfs_log_force: error 5 returned. [10128.686141] XFS (dm-8): xfs_log_force: error 5 returned. [10157.167939] XFS (dm-4): xfs_log_force: error 5 returned. [10157.167942] XFS (dm-6): xfs_log_force: error 5 returned. [10157.167944] XFS (dm-10): xfs_log_force: error 5 returned. [10157.295664] XFS (dm-12): xfs_log_force: error 5 returned. [10157.295667] XFS (dm-5): xfs_log_force: error 5 returned. [10157.295743] XFS (dm-11): xfs_log_force: error 5 returned. [10158.700595] XFS (dm-8): xfs_log_force: error 5 returned. [10187.182398] XFS (dm-4): xfs_log_force: error 5 returned. [10187.182401] XFS (dm-6): xfs_log_force: error 5 returned. [10187.182403] XFS (dm-10): xfs_log_force: error 5 returned. [10187.310120] XFS (dm-5): xfs_log_force: error 5 returned. [10187.310124] XFS (dm-12): xfs_log_force: error 5 returned. [10187.310127] XFS (dm-11): xfs_log_force: error 5 returned. [10188.715053] XFS (dm-8): xfs_log_force: error 5 returned. [10217.196859] XFS (dm-4): xfs_log_force: error 5 returned. [10217.196862] XFS (dm-6): xfs_log_force: error 5 returned. [10217.196864] XFS (dm-10): xfs_log_force: error 5 returned. [10217.324577] XFS (dm-5): xfs_log_force: error 5 returned. [10217.324579] XFS (dm-12): xfs_log_force: error 5 returned. [10217.324601] XFS (dm-11): xfs_log_force: error 5 returned. [10218.729510] XFS (dm-8): xfs_log_force: error 5 returned. [10247.211313] XFS (dm-4): xfs_log_force: error 5 returned. [10247.211316] XFS (dm-6): xfs_log_force: error 5 returned. [10247.211318] XFS (dm-10): xfs_log_force: error 5 returned. [10247.339035] XFS (dm-12): xfs_log_force: error 5 returned. [10247.339038] XFS (dm-5): xfs_log_force: error 5 returned. [10247.339069] XFS (dm-11): xfs_log_force: error 5 returned. [10248.743970] XFS (dm-8): xfs_log_force: error 5 returned. [10277.225776] XFS (dm-4): xfs_log_force: error 5 returned. [10277.225779] XFS (dm-6): xfs_log_force: error 5 returned. [10277.225781] XFS (dm-10): xfs_log_force: error 5 returned. [10277.353492] XFS (dm-12): xfs_log_force: error 5 returned. [10277.353494] XFS (dm-5): xfs_log_force: error 5 returned. [10277.353510] XFS (dm-11): xfs_log_force: error 5 returned. [10278.758422] XFS (dm-8): xfs_log_force: error 5 returned. [10307.240226] XFS (dm-4): xfs_log_force: error 5 returned. [10307.240229] XFS (dm-6): xfs_log_force: error 5 returned. [10307.240231] XFS (dm-10): xfs_log_force: error 5 returned. [10307.367951] XFS (dm-12): xfs_log_force: error 5 returned. [10307.367953] XFS (dm-5): xfs_log_force: error 5 returned. [10307.367956] XFS (dm-11): xfs_log_force: error 5 returned. [10308.772883] XFS (dm-8): xfs_log_force: error 5 returned. [10337.254687] XFS (dm-4): xfs_log_force: error 5 returned. [10337.254689] XFS (dm-6): xfs_log_force: error 5 returned. [10337.254691] XFS (dm-10): xfs_log_force: error 5 returned. [10337.382408] XFS (dm-5): xfs_log_force: error 5 returned. [10337.382410] XFS (dm-12): xfs_log_force: error 5 returned. [10337.382454] XFS (dm-11): xfs_log_force: error 5 returned. [10338.787341] XFS (dm-8): xfs_log_force: error 5 returned. [10367.269150] XFS (dm-4): xfs_log_force: error 5 returned. [10367.269152] XFS (dm-6): xfs_log_force: error 5 returned. [10367.269154] XFS (dm-10): xfs_log_force: error 5 returned. [10367.396868] XFS (dm-12): xfs_log_force: error 5 returned. [10367.396870] XFS (dm-11): xfs_log_force: error 5 returned. [10367.396872] XFS (dm-5): xfs_log_force: error 5 returned. [10368.801801] XFS (dm-8): xfs_log_force: error 5 returned. [10397.283605] XFS (dm-4): xfs_log_force: error 5 returned. [10397.283607] XFS (dm-6): xfs_log_force: error 5 returned. [10397.283609] XFS (dm-10): xfs_log_force: error 5 returned. [10397.411329] XFS (dm-12): xfs_log_force: error 5 returned. [10397.411331] XFS (dm-5): xfs_log_force: error 5 returned. [10397.411400] XFS (dm-11): xfs_log_force: error 5 returned. [10398.816256] XFS (dm-8): xfs_log_force: error 5 returned. [10427.298066] XFS (dm-4): xfs_log_force: error 5 returned. [10427.298069] XFS (dm-6): xfs_log_force: error 5 returned. [10427.298071] XFS (dm-10): xfs_log_force: error 5 returned. [10427.425786] XFS (dm-12): xfs_log_force: error 5 returned. [10427.425788] XFS (dm-5): xfs_log_force: error 5 returned. [10427.425903] XFS (dm-11): xfs_log_force: error 5 returned. [10428.830718] XFS (dm-8): xfs_log_force: error 5 returned. [10457.312520] XFS (dm-4): xfs_log_force: error 5 returned. [10457.312522] XFS (dm-6): xfs_log_force: error 5 returned. [10457.312524] XFS (dm-10): xfs_log_force: error 5 returned. [10457.440244] XFS (dm-12): xfs_log_force: error 5 returned. [10457.440247] XFS (dm-5): xfs_log_force: error 5 returned. [10457.440274] XFS (dm-11): xfs_log_force: error 5 returned. [10458.845176] XFS (dm-8): xfs_log_force: error 5 returned. [10487.326981] XFS (dm-4): xfs_log_force: error 5 returned. [10487.326984] XFS (dm-6): xfs_log_force: error 5 returned. [10487.326986] XFS (dm-10): xfs_log_force: error 5 returned. [10487.454704] XFS (dm-12): xfs_log_force: error 5 returned. [10487.454707] XFS (dm-11): xfs_log_force: error 5 returned. [10487.454709] XFS (dm-5): xfs_log_force: error 5 returned. [10488.859636] XFS (dm-8): xfs_log_force: error 5 returned. [10517.341441] XFS (dm-4): xfs_log_force: error 5 returned. [10517.341443] XFS (dm-6): xfs_log_force: error 5 returned. [10517.341445] XFS (dm-10): xfs_log_force: error 5 returned. [10517.469158] XFS (dm-5): xfs_log_force: error 5 returned. [10517.469161] XFS (dm-12): xfs_log_force: error 5 returned. [10517.469178] XFS (dm-11): xfs_log_force: error 5 returned. [10518.874098] XFS (dm-8): xfs_log_force: error 5 returned. [10547.355890] XFS (dm-4): xfs_log_force: error 5 returned. [10547.355893] XFS (dm-6): xfs_log_force: error 5 returned. [10547.355895] XFS (dm-10): xfs_log_force: error 5 returned. [10547.483615] XFS (dm-12): xfs_log_force: error 5 returned. [10547.483617] XFS (dm-5): xfs_log_force: error 5 returned. [10547.483634] XFS (dm-11): xfs_log_force: error 5 returned. [10548.888540] XFS (dm-8): xfs_log_force: error 5 returned. [10577.370346] XFS (dm-4): xfs_log_force: error 5 returned. [10577.370349] XFS (dm-6): xfs_log_force: error 5 returned. [10577.370351] XFS (dm-10): xfs_log_force: error 5 returned. [10577.498065] XFS (dm-12): xfs_log_force: error 5 returned. [10577.498067] XFS (dm-5): xfs_log_force: error 5 returned. [10577.498076] XFS (dm-11): xfs_log_force: error 5 returned. [10578.902998] XFS (dm-8): xfs_log_force: error 5 returned. [10607.384795] XFS (dm-4): xfs_log_force: error 5 returned. [10607.384798] XFS (dm-6): xfs_log_force: error 5 returned. [10607.384800] XFS (dm-10): xfs_log_force: error 5 returned. [10607.512518] XFS (dm-12): xfs_log_force: error 5 returned. [10607.512522] XFS (dm-5): xfs_log_force: error 5 returned. [10607.512526] XFS (dm-11): xfs_log_force: error 5 returned. [10608.917453] XFS (dm-8): xfs_log_force: error 5 returned. [10637.399253] XFS (dm-4): xfs_log_force: error 5 returned. [10637.399255] XFS (dm-6): xfs_log_force: error 5 returned. [10637.399257] XFS (dm-10): xfs_log_force: error 5 returned. [10637.526974] XFS (dm-5): xfs_log_force: error 5 returned. [10637.526977] XFS (dm-12): xfs_log_force: error 5 returned. [10637.526986] XFS (dm-11): xfs_log_force: error 5 returned. [10638.931911] XFS (dm-8): xfs_log_force: error 5 returned. [10667.413713] XFS (dm-4): xfs_log_force: error 5 returned. [10667.413718] XFS (dm-6): xfs_log_force: error 5 returned. [10667.413721] XFS (dm-10): xfs_log_force: error 5 returned. [10667.541430] XFS (dm-5): xfs_log_force: error 5 returned. [10667.541432] XFS (dm-11): xfs_log_force: error 5 returned. [10667.541435] XFS (dm-12): xfs_log_force: error 5 returned. [10668.946362] XFS (dm-8): xfs_log_force: error 5 returned. [10697.428165] XFS (dm-4): xfs_log_force: error 5 returned. [10697.428168] XFS (dm-6): xfs_log_force: error 5 returned. [10697.428170] XFS (dm-10): xfs_log_force: error 5 returned. [10697.555889] XFS (dm-5): xfs_log_force: error 5 returned. [10697.555892] XFS (dm-12): xfs_log_force: error 5 returned. [10697.555927] XFS (dm-11): xfs_log_force: error 5 returned. [10698.960823] XFS (dm-8): xfs_log_force: error 5 returned. [10727.442626] XFS (dm-4): xfs_log_force: error 5 returned. [10727.442628] XFS (dm-6): xfs_log_force: error 5 returned. [10727.442630] XFS (dm-10): xfs_log_force: error 5 returned. [10727.570343] XFS (dm-12): xfs_log_force: error 5 returned. [10727.570346] XFS (dm-11): xfs_log_force: error 5 returned. [10727.570348] XFS (dm-5): xfs_log_force: error 5 returned. [10728.975280] XFS (dm-8): xfs_log_force: error 5 returned. [10757.457075] XFS (dm-4): xfs_log_force: error 5 returned. [10757.457078] XFS (dm-6): xfs_log_force: error 5 returned. [10757.457080] XFS (dm-10): xfs_log_force: error 5 returned. [10757.584801] XFS (dm-12): xfs_log_force: error 5 returned. [10757.584803] XFS (dm-5): xfs_log_force: error 5 returned. [10757.584811] XFS (dm-11): xfs_log_force: error 5 returned. [10758.989731] XFS (dm-8): xfs_log_force: error 5 returned. [10787.471536] XFS (dm-4): xfs_log_force: error 5 returned. [10787.471538] XFS (dm-6): xfs_log_force: error 5 returned. [10787.471540] XFS (dm-10): xfs_log_force: error 5 returned. [10787.599258] XFS (dm-5): xfs_log_force: error 5 returned. [10787.599260] XFS (dm-11): xfs_log_force: error 5 returned. [10787.599267] XFS (dm-12): xfs_log_force: error 5 returned. [10789.004195] XFS (dm-8): xfs_log_force: error 5 returned. [10817.485997] XFS (dm-4): xfs_log_force: error 5 returned. [10817.485999] XFS (dm-6): xfs_log_force: error 5 returned. [10817.486001] XFS (dm-10): xfs_log_force: error 5 returned. [10817.613714] XFS (dm-5): xfs_log_force: error 5 returned. [10817.613717] XFS (dm-12): xfs_log_force: error 5 returned. [10817.613752] XFS (dm-11): xfs_log_force: error 5 returned. [10819.018655] XFS (dm-8): xfs_log_force: error 5 returned. [10847.500451] XFS (dm-4): xfs_log_force: error 5 returned. [10847.500453] XFS (dm-6): xfs_log_force: error 5 returned. [10847.500455] XFS (dm-10): xfs_log_force: error 5 returned. [10847.628176] XFS (dm-12): xfs_log_force: error 5 returned. [10847.628178] XFS (dm-5): xfs_log_force: error 5 returned. [10847.628280] XFS (dm-11): xfs_log_force: error 5 returned. [10849.033107] XFS (dm-8): xfs_log_force: error 5 returned. [10877.514912] XFS (dm-4): xfs_log_force: error 5 returned. [10877.514915] XFS (dm-6): xfs_log_force: error 5 returned. [10877.514917] XFS (dm-10): xfs_log_force: error 5 returned. [10877.642630] XFS (dm-12): xfs_log_force: error 5 returned. [10877.642633] XFS (dm-5): xfs_log_force: error 5 returned. [10877.642635] XFS (dm-11): xfs_log_force: error 5 returned. [10879.047564] XFS (dm-8): xfs_log_force: error 5 returned. [10907.529364] XFS (dm-4): xfs_log_force: error 5 returned. [10907.529367] XFS (dm-6): xfs_log_force: error 5 returned. [10907.529369] XFS (dm-10): xfs_log_force: error 5 returned. [10907.657089] XFS (dm-12): xfs_log_force: error 5 returned. [10907.657091] XFS (dm-5): xfs_log_force: error 5 returned. [10907.657225] XFS (dm-11): xfs_log_force: error 5 returned. [10909.062023] XFS (dm-8): xfs_log_force: error 5 returned. [10937.543825] XFS (dm-4): xfs_log_force: error 5 returned. [10937.543828] XFS (dm-6): xfs_log_force: error 5 returned. [10937.543830] XFS (dm-10): xfs_log_force: error 5 returned. [10937.671547] XFS (dm-5): xfs_log_force: error 5 returned. [10937.671551] XFS (dm-12): xfs_log_force: error 5 returned. [10937.671640] XFS (dm-11): xfs_log_force: error 5 returned. [10939.076479] XFS (dm-8): xfs_log_force: error 5 returned. [10967.558287] XFS (dm-4): xfs_log_force: error 5 returned. [10967.558289] XFS (dm-6): xfs_log_force: error 5 returned. [10967.558291] XFS (dm-10): xfs_log_force: error 5 returned. [10967.686004] XFS (dm-5): xfs_log_force: error 5 returned. [10967.686010] XFS (dm-12): xfs_log_force: error 5 returned. [10967.686048] XFS (dm-11): xfs_log_force: error 5 returned. [10969.090939] XFS (dm-8): xfs_log_force: error 5 returned. [10997.572747] XFS (dm-4): xfs_log_force: error 5 returned. [10997.572750] XFS (dm-6): xfs_log_force: error 5 returned. [10997.572752] XFS (dm-10): xfs_log_force: error 5 returned. [10997.700464] XFS (dm-12): xfs_log_force: error 5 returned. [10997.700467] XFS (dm-11): xfs_log_force: error 5 returned. [10997.700473] XFS (dm-5): xfs_log_force: error 5 returned. [10999.105399] XFS (dm-8): xfs_log_force: error 5 returned. [11027.587201] XFS (dm-4): xfs_log_force: error 5 returned. [11027.587204] XFS (dm-6): xfs_log_force: error 5 returned. [11027.587206] XFS (dm-10): xfs_log_force: error 5 returned. [11027.714921] XFS (dm-12): xfs_log_force: error 5 returned. [11027.714923] XFS (dm-5): xfs_log_force: error 5 returned. [11027.714937] XFS (dm-11): xfs_log_force: error 5 returned. [11029.119850] XFS (dm-8): xfs_log_force: error 5 returned. [11057.601654] XFS (dm-4): xfs_log_force: error 5 returned. [11057.601657] XFS (dm-6): xfs_log_force: error 5 returned. [11057.601659] XFS (dm-10): xfs_log_force: error 5 returned. [11057.729380] XFS (dm-12): xfs_log_force: error 5 returned. [11057.729382] XFS (dm-5): xfs_log_force: error 5 returned. [11057.729403] XFS (dm-11): xfs_log_force: error 5 returned. [11059.134312] XFS (dm-8): xfs_log_force: error 5 returned. [11087.616116] XFS (dm-4): xfs_log_force: error 5 returned. [11087.616118] XFS (dm-6): xfs_log_force: error 5 returned. [11087.616120] XFS (dm-10): xfs_log_force: error 5 returned. [11087.743836] XFS (dm-5): xfs_log_force: error 5 returned. [11087.743839] XFS (dm-12): xfs_log_force: error 5 returned. [11087.743841] XFS (dm-11): xfs_log_force: error 5 returned. [11089.148781] XFS (dm-8): xfs_log_force: error 5 returned. [11117.630578] XFS (dm-4): xfs_log_force: error 5 returned. [11117.630580] XFS (dm-6): xfs_log_force: error 5 returned. [11117.630582] XFS (dm-10): xfs_log_force: error 5 returned. [11117.758294] XFS (dm-5): xfs_log_force: error 5 returned. [11117.758297] XFS (dm-12): xfs_log_force: error 5 returned. [11117.758300] XFS (dm-11): xfs_log_force: error 5 returned. [11119.163228] XFS (dm-8): xfs_log_force: error 5 returned. [11147.645032] XFS (dm-4): xfs_log_force: error 5 returned. [11147.645034] XFS (dm-6): xfs_log_force: error 5 returned. [11147.645037] XFS (dm-10): xfs_log_force: error 5 returned. [11147.772757] XFS (dm-12): xfs_log_force: error 5 returned. [11147.772759] XFS (dm-5): xfs_log_force: error 5 returned. [11147.772809] XFS (dm-11): xfs_log_force: error 5 returned. [11149.177684] XFS (dm-8): xfs_log_force: error 5 returned. [11177.659492] XFS (dm-4): xfs_log_force: error 5 returned. [11177.659495] XFS (dm-6): xfs_log_force: error 5 returned. [11177.659497] XFS (dm-10): xfs_log_force: error 5 returned. [11177.787211] XFS (dm-5): xfs_log_force: error 5 returned. [11177.787214] XFS (dm-12): xfs_log_force: error 5 returned. [11177.787275] XFS (dm-11): xfs_log_force: error 5 returned. [11179.192144] XFS (dm-8): xfs_log_force: error 5 returned. [11207.673945] XFS (dm-4): xfs_log_force: error 5 returned. [11207.673947] XFS (dm-6): xfs_log_force: error 5 returned. [11207.673949] XFS (dm-10): xfs_log_force: error 5 returned. [11207.801669] XFS (dm-12): xfs_log_force: error 5 returned. [11207.801672] XFS (dm-5): xfs_log_force: error 5 returned. [11207.801745] XFS (dm-11): xfs_log_force: error 5 returned. [11209.206600] XFS (dm-8): xfs_log_force: error 5 returned. [11237.688406] XFS (dm-4): xfs_log_force: error 5 returned. [11237.688409] XFS (dm-6): xfs_log_force: error 5 returned. [11237.688411] XFS (dm-10): xfs_log_force: error 5 returned. [11237.816127] XFS (dm-5): xfs_log_force: error 5 returned. [11237.816137] XFS (dm-12): xfs_log_force: error 5 returned. [11237.816211] XFS (dm-11): xfs_log_force: error 5 returned. [11239.221062] XFS (dm-8): xfs_log_force: error 5 returned. [11267.702868] XFS (dm-4): xfs_log_force: error 5 returned. [11267.702870] XFS (dm-6): xfs_log_force: error 5 returned. [11267.702872] XFS (dm-10): xfs_log_force: error 5 returned. [11267.830586] XFS (dm-12): xfs_log_force: error 5 returned. [11267.830588] XFS (dm-5): xfs_log_force: error 5 returned. [11267.830594] XFS (dm-11): xfs_log_force: error 5 returned. [11269.235525] XFS (dm-8): xfs_log_force: error 5 returned. [11297.717327] XFS (dm-4): xfs_log_force: error 5 returned. [11297.717330] XFS (dm-6): xfs_log_force: error 5 returned. [11297.717332] XFS (dm-10): xfs_log_force: error 5 returned. [11297.845046] XFS (dm-12): xfs_log_force: error 5 returned. [11297.845048] XFS (dm-5): xfs_log_force: error 5 returned. [11297.845147] XFS (dm-11): xfs_log_force: error 5 returned. [11299.249971] XFS (dm-8): xfs_log_force: error 5 returned. [11327.731781] XFS (dm-4): xfs_log_force: error 5 returned. [11327.731783] XFS (dm-6): xfs_log_force: error 5 returned. [11327.731785] XFS (dm-10): xfs_log_force: error 5 returned. [11327.859499] XFS (dm-12): xfs_log_force: error 5 returned. [11327.859501] XFS (dm-5): xfs_log_force: error 5 returned. [11327.859520] XFS (dm-11): xfs_log_force: error 5 returned. [11329.264433] XFS (dm-8): xfs_log_force: error 5 returned. [11357.746234] XFS (dm-4): xfs_log_force: error 5 returned. [11357.746236] XFS (dm-6): xfs_log_force: error 5 returned. [11357.746238] XFS (dm-10): xfs_log_force: error 5 returned. [11357.873957] XFS (dm-12): xfs_log_force: error 5 returned. [11357.873960] XFS (dm-5): xfs_log_force: error 5 returned. [11357.874008] XFS (dm-11): xfs_log_force: error 5 returned. [11359.278892] XFS (dm-8): xfs_log_force: error 5 returned. [11387.760696] XFS (dm-4): xfs_log_force: error 5 returned. [11387.760699] XFS (dm-6): xfs_log_force: error 5 returned. [11387.760701] XFS (dm-10): xfs_log_force: error 5 returned. [11387.888417] XFS (dm-5): xfs_log_force: error 5 returned. [11387.888420] XFS (dm-12): xfs_log_force: error 5 returned. [11387.888428] XFS (dm-11): xfs_log_force: error 5 returned. [11389.293360] XFS (dm-8): xfs_log_force: error 5 returned. [11417.775159] XFS (dm-4): xfs_log_force: error 5 returned. [11417.775161] XFS (dm-6): xfs_log_force: error 5 returned. [11417.775163] XFS (dm-10): xfs_log_force: error 5 returned. [11417.902876] XFS (dm-5): xfs_log_force: error 5 returned. [11417.902883] XFS (dm-12): xfs_log_force: error 5 returned. [11417.902901] XFS (dm-11): xfs_log_force: error 5 returned. [11419.307809] XFS (dm-8): xfs_log_force: error 5 returned. [11447.789615] XFS (dm-4): xfs_log_force: error 5 returned. [11447.789618] XFS (dm-6): xfs_log_force: error 5 returned. [11447.789620] XFS (dm-10): xfs_log_force: error 5 returned. [11447.917340] XFS (dm-12): xfs_log_force: error 5 returned. [11447.917342] XFS (dm-5): xfs_log_force: error 5 returned. [11447.917345] XFS (dm-11): xfs_log_force: error 5 returned. [11449.322274] XFS (dm-8): xfs_log_force: error 5 returned. [11477.804079] XFS (dm-4): xfs_log_force: error 5 returned. [11477.804082] XFS (dm-6): xfs_log_force: error 5 returned. [11477.804084] XFS (dm-10): xfs_log_force: error 5 returned. [11477.931797] XFS (dm-12): xfs_log_force: error 5 returned. [11477.931800] XFS (dm-11): xfs_log_force: error 5 returned. [11477.931802] XFS (dm-5): xfs_log_force: error 5 returned. [11479.336727] XFS (dm-8): xfs_log_force: error 5 returned. [11507.818531] XFS (dm-4): xfs_log_force: error 5 returned. [11507.818534] XFS (dm-6): xfs_log_force: error 5 returned. [11507.818536] XFS (dm-10): xfs_log_force: error 5 returned. [11507.946256] XFS (dm-12): xfs_log_force: error 5 returned. [11507.946259] XFS (dm-11): xfs_log_force: error 5 returned. [11507.946261] XFS (dm-5): xfs_log_force: error 5 returned. [11509.351188] XFS (dm-8): xfs_log_force: error 5 returned. [11537.832993] XFS (dm-4): xfs_log_force: error 5 returned. [11537.832995] XFS (dm-6): xfs_log_force: error 5 returned. [11537.832997] XFS (dm-10): xfs_log_force: error 5 returned. [11537.960715] XFS (dm-5): xfs_log_force: error 5 returned. [11537.960722] XFS (dm-11): xfs_log_force: error 5 returned. [11537.960725] XFS (dm-12): xfs_log_force: error 5 returned. [11539.365653] XFS (dm-8): xfs_log_force: error 5 returned. [11567.847456] XFS (dm-4): xfs_log_force: error 5 returned. [11567.847459] XFS (dm-6): xfs_log_force: error 5 returned. [11567.847461] XFS (dm-10): xfs_log_force: error 5 returned. [11567.975173] XFS (dm-5): xfs_log_force: error 5 returned. [11567.975175] XFS (dm-12): xfs_log_force: error 5 returned. [11567.975195] XFS (dm-11): xfs_log_force: error 5 returned. [11569.380114] XFS (dm-8): xfs_log_force: error 5 returned. [11597.861911] XFS (dm-4): xfs_log_force: error 5 returned. [11597.861913] XFS (dm-6): xfs_log_force: error 5 returned. [11597.861915] XFS (dm-10): xfs_log_force: error 5 returned. [11597.989636] XFS (dm-12): xfs_log_force: error 5 returned. [11597.989638] XFS (dm-5): xfs_log_force: error 5 returned. [11597.989641] XFS (dm-11): xfs_log_force: error 5 returned. [11599.394567] XFS (dm-8): xfs_log_force: error 5 returned. [11627.876371] XFS (dm-4): xfs_log_force: error 5 returned. [11627.876374] XFS (dm-6): xfs_log_force: error 5 returned. [11627.876376] XFS (dm-10): xfs_log_force: error 5 returned. [11628.004088] XFS (dm-12): xfs_log_force: error 5 returned. [11628.004090] XFS (dm-5): xfs_log_force: error 5 returned. [11628.004093] XFS (dm-11): xfs_log_force: error 5 returned. [11629.409022] XFS (dm-8): xfs_log_force: error 5 returned. [11657.890821] XFS (dm-4): xfs_log_force: error 5 returned. [11657.890823] XFS (dm-6): xfs_log_force: error 5 returned. [11657.890825] XFS (dm-10): xfs_log_force: error 5 returned. [11658.018546] XFS (dm-12): xfs_log_force: error 5 returned. [11658.018548] XFS (dm-5): xfs_log_force: error 5 returned. [11658.018600] XFS (dm-11): xfs_log_force: error 5 returned. [11659.423479] XFS (dm-8): xfs_log_force: error 5 returned. [11687.905280] XFS (dm-4): xfs_log_force: error 5 returned. [11687.905282] XFS (dm-6): xfs_log_force: error 5 returned. [11687.905284] XFS (dm-10): xfs_log_force: error 5 returned. [11688.033002] XFS (dm-5): xfs_log_force: error 5 returned. [11688.033005] XFS (dm-11): xfs_log_force: error 5 returned. [11688.033008] XFS (dm-12): xfs_log_force: error 5 returned. [11689.437934] XFS (dm-8): xfs_log_force: error 5 returned. [11717.919741] XFS (dm-4): xfs_log_force: error 5 returned. [11717.919743] XFS (dm-6): xfs_log_force: error 5 returned. [11717.919745] XFS (dm-10): xfs_log_force: error 5 returned. [11718.047460] XFS (dm-5): xfs_log_force: error 5 returned. [11718.047465] XFS (dm-12): xfs_log_force: error 5 returned. [11718.047476] XFS (dm-11): xfs_log_force: error 5 returned. [11719.452394] XFS (dm-8): xfs_log_force: error 5 returned. [11747.934194] XFS (dm-4): xfs_log_force: error 5 returned. [11747.934196] XFS (dm-6): xfs_log_force: error 5 returned. [11747.934198] XFS (dm-10): xfs_log_force: error 5 returned. [11748.061917] XFS (dm-12): xfs_log_force: error 5 returned. [11748.061919] XFS (dm-5): xfs_log_force: error 5 returned. [11748.061959] XFS (dm-11): xfs_log_force: error 5 returned. [11749.466852] XFS (dm-8): xfs_log_force: error 5 returned. [11777.948654] XFS (dm-4): xfs_log_force: error 5 returned. [11777.948656] XFS (dm-6): xfs_log_force: error 5 returned. [11777.948658] XFS (dm-10): xfs_log_force: error 5 returned. [11778.076372] XFS (dm-12): xfs_log_force: error 5 returned. [11778.076374] XFS (dm-5): xfs_log_force: error 5 returned. [11778.076390] XFS (dm-11): xfs_log_force: error 5 returned. [11779.481303] XFS (dm-8): xfs_log_force: error 5 returned. [11807.963106] XFS (dm-4): xfs_log_force: error 5 returned. [11807.963108] XFS (dm-6): xfs_log_force: error 5 returned. [11807.963110] XFS (dm-10): xfs_log_force: error 5 returned. [11808.090831] XFS (dm-12): xfs_log_force: error 5 returned. [11808.090833] XFS (dm-5): xfs_log_force: error 5 returned. [11808.090895] XFS (dm-11): xfs_log_force: error 5 returned. [11809.495764] XFS (dm-8): xfs_log_force: error 5 returned. [11837.977565] XFS (dm-4): xfs_log_force: error 5 returned. [11837.977568] XFS (dm-6): xfs_log_force: error 5 returned. [11837.977570] XFS (dm-10): xfs_log_force: error 5 returned. [11838.105286] XFS (dm-5): xfs_log_force: error 5 returned. [11838.105288] XFS (dm-12): xfs_log_force: error 5 returned. [11838.105291] XFS (dm-11): xfs_log_force: error 5 returned. [11839.510230] XFS (dm-8): xfs_log_force: error 5 returned. [11867.992026] XFS (dm-4): xfs_log_force: error 5 returned. [11867.992029] XFS (dm-6): xfs_log_force: error 5 returned. [11867.992031] XFS (dm-10): xfs_log_force: error 5 returned. [11868.119743] XFS (dm-5): xfs_log_force: error 5 returned. [11868.119746] XFS (dm-12): xfs_log_force: error 5 returned. [11868.119854] XFS (dm-11): xfs_log_force: error 5 returned. [11869.524677] XFS (dm-8): xfs_log_force: error 5 returned. [11898.006481] XFS (dm-4): xfs_log_force: error 5 returned. [11898.006484] XFS (dm-6): xfs_log_force: error 5 returned. [11898.006486] XFS (dm-10): xfs_log_force: error 5 returned. [11898.134205] XFS (dm-12): xfs_log_force: error 5 returned. [11898.134208] XFS (dm-5): xfs_log_force: error 5 returned. [11898.134275] XFS (dm-11): xfs_log_force: error 5 returned. [11899.539132] XFS (dm-8): xfs_log_force: error 5 returned. [11928.020942] XFS (dm-4): xfs_log_force: error 5 returned. [11928.020945] XFS (dm-6): xfs_log_force: error 5 returned. [11928.020947] XFS (dm-10): xfs_log_force: error 5 returned. [11928.148659] XFS (dm-5): xfs_log_force: error 5 returned. [11928.148661] XFS (dm-11): xfs_log_force: error 5 returned. [11928.148664] XFS (dm-12): xfs_log_force: error 5 returned. [11929.553593] XFS (dm-8): xfs_log_force: error 5 returned. [11958.035392] XFS (dm-4): xfs_log_force: error 5 returned. [11958.035395] XFS (dm-6): xfs_log_force: error 5 returned. [11958.035397] XFS (dm-10): xfs_log_force: error 5 returned. [11958.163116] XFS (dm-12): xfs_log_force: error 5 returned. [11958.163119] XFS (dm-5): xfs_log_force: error 5 returned. [11958.163218] XFS (dm-11): xfs_log_force: error 5 returned. [11959.568048] XFS (dm-8): xfs_log_force: error 5 returned. [11988.049853] XFS (dm-4): xfs_log_force: error 5 returned. [11988.049856] XFS (dm-6): xfs_log_force: error 5 returned. [11988.049858] XFS (dm-10): xfs_log_force: error 5 returned. [11988.177573] XFS (dm-5): xfs_log_force: error 5 returned. [11988.177576] XFS (dm-12): xfs_log_force: error 5 returned. [11988.177579] XFS (dm-11): xfs_log_force: error 5 returned. [11989.582510] XFS (dm-8): xfs_log_force: error 5 returned. [12018.064314] XFS (dm-4): xfs_log_force: error 5 returned. [12018.064317] XFS (dm-6): xfs_log_force: error 5 returned. [12018.064319] XFS (dm-10): xfs_log_force: error 5 returned. [12018.192031] XFS (dm-5): xfs_log_force: error 5 returned. [12018.192034] XFS (dm-12): xfs_log_force: error 5 returned. [12018.192163] XFS (dm-11): xfs_log_force: error 5 returned. [12019.596973] XFS (dm-8): xfs_log_force: error 5 returned. [12048.078769] XFS (dm-4): xfs_log_force: error 5 returned. [12048.078772] XFS (dm-6): xfs_log_force: error 5 returned. [12048.078773] XFS (dm-10): xfs_log_force: error 5 returned. [12048.206493] XFS (dm-12): xfs_log_force: error 5 returned. [12048.206496] XFS (dm-11): xfs_log_force: error 5 returned. [12048.206499] XFS (dm-5): xfs_log_force: error 5 returned. [12049.611419] XFS (dm-8): xfs_log_force: error 5 returned. [12078.093229] XFS (dm-4): xfs_log_force: error 5 returned. [12078.093232] XFS (dm-6): xfs_log_force: error 5 returned. [12078.093234] XFS (dm-10): xfs_log_force: error 5 returned. [12078.220948] XFS (dm-12): xfs_log_force: error 5 returned. [12078.220950] XFS (dm-5): xfs_log_force: error 5 returned. [12078.220961] XFS (dm-11): xfs_log_force: error 5 returned. [12079.625881] XFS (dm-8): xfs_log_force: error 5 returned. [12108.107681] XFS (dm-4): xfs_log_force: error 5 returned. [12108.107684] XFS (dm-6): xfs_log_force: error 5 returned. [12108.107686] XFS (dm-10): xfs_log_force: error 5 returned. [12108.235404] XFS (dm-12): xfs_log_force: error 5 returned. [12108.235407] XFS (dm-5): xfs_log_force: error 5 returned. [12108.235431] XFS (dm-11): xfs_log_force: error 5 returned. [12109.640340] XFS (dm-8): xfs_log_force: error 5 returned. [12138.122142] XFS (dm-4): xfs_log_force: error 5 returned. [12138.122144] XFS (dm-6): xfs_log_force: error 5 returned. [12138.122146] XFS (dm-10): xfs_log_force: error 5 returned. [12138.249863] XFS (dm-5): xfs_log_force: error 5 returned. [12138.249865] XFS (dm-12): xfs_log_force: error 5 returned. [12138.249874] XFS (dm-11): xfs_log_force: error 5 returned. [12139.654807] XFS (dm-8): xfs_log_force: error 5 returned. [12168.136603] XFS (dm-4): xfs_log_force: error 5 returned. [12168.136606] XFS (dm-6): xfs_log_force: error 5 returned. [12168.136608] XFS (dm-10): xfs_log_force: error 5 returned. [12168.264320] XFS (dm-5): xfs_log_force: error 5 returned. [12168.264328] XFS (dm-12): xfs_log_force: error 5 returned. [12168.264346] XFS (dm-11): xfs_log_force: error 5 returned. [12169.669253] XFS (dm-8): xfs_log_force: error 5 returned. [12198.151059] XFS (dm-4): xfs_log_force: error 5 returned. [12198.151062] XFS (dm-6): xfs_log_force: error 5 returned. [12198.151064] XFS (dm-10): xfs_log_force: error 5 returned. [12198.278783] XFS (dm-12): xfs_log_force: error 5 returned. [12198.278786] XFS (dm-11): xfs_log_force: error 5 returned. [12198.278788] XFS (dm-5): xfs_log_force: error 5 returned. [12199.683717] XFS (dm-8): xfs_log_force: error 5 returned. [12228.165522] XFS (dm-4): xfs_log_force: error 5 returned. [12228.165525] XFS (dm-6): xfs_log_force: error 5 returned. [12228.165527] XFS (dm-10): xfs_log_force: error 5 returned. [12228.293240] XFS (dm-12): xfs_log_force: error 5 returned. [12228.293243] XFS (dm-5): xfs_log_force: error 5 returned. [12228.293293] XFS (dm-11): xfs_log_force: error 5 returned. [12229.698172] XFS (dm-8): xfs_log_force: error 5 returned. [12258.179977] XFS (dm-4): xfs_log_force: error 5 returned. [12258.179979] XFS (dm-6): xfs_log_force: error 5 returned. [12258.179981] XFS (dm-10): xfs_log_force: error 5 returned. [12258.307702] XFS (dm-12): xfs_log_force: error 5 returned. [12258.307704] XFS (dm-5): xfs_log_force: error 5 returned. [12258.307711] XFS (dm-11): xfs_log_force: error 5 returned. [12259.712633] XFS (dm-8): xfs_log_force: error 5 returned. [12288.194440] XFS (dm-4): xfs_log_force: error 5 returned. [12288.194442] XFS (dm-6): xfs_log_force: error 5 returned. [12288.194444] XFS (dm-10): xfs_log_force: error 5 returned. [12288.322159] XFS (dm-5): xfs_log_force: error 5 returned. [12288.322171] XFS (dm-12): xfs_log_force: error 5 returned. [12288.322241] XFS (dm-11): xfs_log_force: error 5 returned. [12289.727099] XFS (dm-8): xfs_log_force: error 5 returned. [12318.208903] XFS (dm-4): xfs_log_force: error 5 returned. [12318.208906] XFS (dm-6): xfs_log_force: error 5 returned. [12318.208908] XFS (dm-10): xfs_log_force: error 5 returned. [12318.336620] XFS (dm-5): xfs_log_force: error 5 returned. [12318.336622] XFS (dm-12): xfs_log_force: error 5 returned. [12318.336658] XFS (dm-11): xfs_log_force: error 5 returned. [12319.741560] XFS (dm-8): xfs_log_force: error 5 returned. [12348.223359] XFS (dm-4): xfs_log_force: error 5 returned. [12348.223361] XFS (dm-6): xfs_log_force: error 5 returned. [12348.223363] XFS (dm-10): xfs_log_force: error 5 returned. [12348.351083] XFS (dm-12): xfs_log_force: error 5 returned. [12348.351086] XFS (dm-5): xfs_log_force: error 5 returned. [12348.351088] XFS (dm-11): xfs_log_force: error 5 returned. [12349.756016] XFS (dm-8): xfs_log_force: error 5 returned. [12378.237820] XFS (dm-4): xfs_log_force: error 5 returned. [12378.237823] XFS (dm-6): xfs_log_force: error 5 returned. [12378.237824] XFS (dm-10): xfs_log_force: error 5 returned. [12378.365539] XFS (dm-12): xfs_log_force: error 5 returned. [12378.365541] XFS (dm-5): xfs_log_force: error 5 returned. [12378.365612] XFS (dm-11): xfs_log_force: error 5 returned. [12379.770473] XFS (dm-8): xfs_log_force: error 5 returned. [12408.252275] XFS (dm-4): xfs_log_force: error 5 returned. [12408.252278] XFS (dm-6): xfs_log_force: error 5 returned. [12408.252280] XFS (dm-10): xfs_log_force: error 5 returned. [12408.380000] XFS (dm-12): xfs_log_force: error 5 returned. [12408.380003] XFS (dm-5): xfs_log_force: error 5 returned. [12408.380131] XFS (dm-11): xfs_log_force: error 5 returned. [12409.784934] XFS (dm-8): xfs_log_force: error 5 returned. [12438.266739] XFS (dm-4): xfs_log_force: error 5 returned. [12438.266741] XFS (dm-6): xfs_log_force: error 5 returned. [12438.266743] XFS (dm-10): xfs_log_force: error 5 returned. [12438.394459] XFS (dm-5): xfs_log_force: error 5 returned. [12438.394464] XFS (dm-12): xfs_log_force: error 5 returned. [12438.394480] XFS (dm-11): xfs_log_force: error 5 returned. [12439.799392] XFS (dm-8): xfs_log_force: error 5 returned. [12468.281202] XFS (dm-4): xfs_log_force: error 5 returned. [12468.281204] XFS (dm-6): xfs_log_force: error 5 returned. [12468.281206] XFS (dm-10): xfs_log_force: error 5 returned. [12468.408918] XFS (dm-5): xfs_log_force: error 5 returned. [12468.408920] XFS (dm-11): xfs_log_force: error 5 returned. [12468.408925] XFS (dm-12): xfs_log_force: error 5 returned. [12469.813853] XFS (dm-8): xfs_log_force: error 5 returned. [12498.295656] XFS (dm-4): xfs_log_force: error 5 returned. [12498.295659] XFS (dm-6): xfs_log_force: error 5 returned. [12498.295661] XFS (dm-10): xfs_log_force: error 5 returned. [12498.423378] XFS (dm-12): xfs_log_force: error 5 returned. [12498.423380] XFS (dm-5): xfs_log_force: error 5 returned. [12498.423383] XFS (dm-11): xfs_log_force: error 5 returned. [12499.828314] XFS (dm-8): xfs_log_force: error 5 returned. [12528.310117] XFS (dm-4): xfs_log_force: error 5 returned. [12528.310121] XFS (dm-6): xfs_log_force: error 5 returned. [12528.310124] XFS (dm-10): xfs_log_force: error 5 returned. [12528.437834] XFS (dm-12): xfs_log_force: error 5 returned. [12528.437837] XFS (dm-11): xfs_log_force: error 5 returned. [12528.437840] XFS (dm-5): xfs_log_force: error 5 returned. [12529.842765] XFS (dm-8): xfs_log_force: error 5 returned. [12558.324568] XFS (dm-4): xfs_log_force: error 5 returned. [12558.324571] XFS (dm-6): xfs_log_force: error 5 returned. [12558.324573] XFS (dm-10): xfs_log_force: error 5 returned. [12558.452293] XFS (dm-12): xfs_log_force: error 5 returned. [12558.452296] XFS (dm-11): xfs_log_force: error 5 returned. [12558.452298] XFS (dm-5): xfs_log_force: error 5 returned. [12559.857225] XFS (dm-8): xfs_log_force: error 5 returned. [12588.339030] XFS (dm-4): xfs_log_force: error 5 returned. [12588.339034] XFS (dm-6): xfs_log_force: error 5 returned. [12588.339037] XFS (dm-10): xfs_log_force: error 5 returned. [12588.466750] XFS (dm-12): xfs_log_force: error 5 returned. [12588.466753] XFS (dm-5): xfs_log_force: error 5 returned. [12588.466755] XFS (dm-11): xfs_log_force: error 5 returned. [12589.871694] XFS (dm-8): xfs_log_force: error 5 returned. [12618.353493] XFS (dm-4): xfs_log_force: error 5 returned. [12618.353497] XFS (dm-6): xfs_log_force: error 5 returned. [12618.353499] XFS (dm-10): xfs_log_force: error 5 returned. [12618.481208] XFS (dm-5): xfs_log_force: error 5 returned. [12618.481211] XFS (dm-12): xfs_log_force: error 5 returned. [12618.481221] XFS (dm-11): xfs_log_force: error 5 returned. [12619.886143] XFS (dm-8): xfs_log_force: error 5 returned. [12648.367945] XFS (dm-4): xfs_log_force: error 5 returned. [12648.367949] XFS (dm-6): xfs_log_force: error 5 returned. [12648.367951] XFS (dm-10): xfs_log_force: error 5 returned. [12648.495670] XFS (dm-12): xfs_log_force: error 5 returned. [12648.495672] XFS (dm-5): xfs_log_force: error 5 returned. [12648.495700] XFS (dm-11): xfs_log_force: error 5 returned. [12649.900597] XFS (dm-8): xfs_log_force: error 5 returned. [12678.382406] XFS (dm-4): xfs_log_force: error 5 returned. [12678.382409] XFS (dm-6): xfs_log_force: error 5 returned. [12678.382412] XFS (dm-10): xfs_log_force: error 5 returned. [12678.510124] XFS (dm-5): xfs_log_force: error 5 returned. [12678.510127] XFS (dm-12): xfs_log_force: error 5 returned. [12678.510167] XFS (dm-11): xfs_log_force: error 5 returned. [12679.915058] XFS (dm-8): xfs_log_force: error 5 returned. [12708.396859] XFS (dm-4): xfs_log_force: error 5 returned. [12708.396862] XFS (dm-6): xfs_log_force: error 5 returned. [12708.396864] XFS (dm-10): xfs_log_force: error 5 returned. [12708.524583] XFS (dm-12): xfs_log_force: error 5 returned. [12708.524585] XFS (dm-5): xfs_log_force: error 5 returned. [12708.524589] XFS (dm-11): xfs_log_force: error 5 returned. [12709.929514] XFS (dm-8): xfs_log_force: error 5 returned. [12738.411316] XFS (dm-4): xfs_log_force: error 5 returned. [12738.411319] XFS (dm-6): xfs_log_force: error 5 returned. [12738.411321] XFS (dm-10): xfs_log_force: error 5 returned. [12738.539039] XFS (dm-5): xfs_log_force: error 5 returned. [12738.539043] XFS (dm-12): xfs_log_force: error 5 returned. [12738.539101] XFS (dm-11): xfs_log_force: error 5 returned. [12739.943976] XFS (dm-8): xfs_log_force: error 5 returned. [12768.425781] XFS (dm-4): xfs_log_force: error 5 returned. [12768.425784] XFS (dm-6): xfs_log_force: error 5 returned. [12768.425786] XFS (dm-10): xfs_log_force: error 5 returned. [12768.553499] XFS (dm-5): xfs_log_force: error 5 returned. [12768.553501] XFS (dm-12): xfs_log_force: error 5 returned. [12768.553504] XFS (dm-11): xfs_log_force: error 5 returned. [12769.958432] XFS (dm-8): xfs_log_force: error 5 returned. [12798.440235] XFS (dm-4): xfs_log_force: error 5 returned. [12798.440238] XFS (dm-6): xfs_log_force: error 5 returned. [12798.440240] XFS (dm-10): xfs_log_force: error 5 returned. [12798.567960] XFS (dm-12): xfs_log_force: error 5 returned. [12798.567962] XFS (dm-5): xfs_log_force: error 5 returned. [12798.568044] XFS (dm-11): xfs_log_force: error 5 returned. [12799.972886] XFS (dm-8): xfs_log_force: error 5 returned. [12828.454698] XFS (dm-4): xfs_log_force: error 5 returned. [12828.454701] XFS (dm-6): xfs_log_force: error 5 returned. [12828.454703] XFS (dm-10): xfs_log_force: error 5 returned. [12828.582415] XFS (dm-12): xfs_log_force: error 5 returned. [12828.582418] XFS (dm-5): xfs_log_force: error 5 returned. [12828.582437] XFS (dm-11): xfs_log_force: error 5 returned. [12829.987349] XFS (dm-8): xfs_log_force: error 5 returned. [12858.469149] XFS (dm-4): xfs_log_force: error 5 returned. [12858.469152] XFS (dm-6): xfs_log_force: error 5 returned. [12858.469154] XFS (dm-10): xfs_log_force: error 5 returned. [12858.596872] XFS (dm-12): xfs_log_force: error 5 returned. [12858.596877] XFS (dm-5): xfs_log_force: error 5 returned. [12858.596973] XFS (dm-11): xfs_log_force: error 5 returned. [12860.001803] XFS (dm-8): xfs_log_force: error 5 returned. [12888.483609] XFS (dm-4): xfs_log_force: error 5 returned. [12888.483611] XFS (dm-6): xfs_log_force: error 5 returned. [12888.483613] XFS (dm-10): xfs_log_force: error 5 returned. [12888.611333] XFS (dm-5): xfs_log_force: error 5 returned. [12888.611336] XFS (dm-12): xfs_log_force: error 5 returned. [12888.611344] XFS (dm-11): xfs_log_force: error 5 returned. [12890.016269] XFS (dm-8): xfs_log_force: error 5 returned. [12918.498074] XFS (dm-4): xfs_log_force: error 5 returned. [12918.498077] XFS (dm-6): xfs_log_force: error 5 returned. [12918.498079] XFS (dm-10): xfs_log_force: error 5 returned. [12918.625789] XFS (dm-5): xfs_log_force: error 5 returned. [12918.625792] XFS (dm-12): xfs_log_force: error 5 returned. [12918.625825] XFS (dm-11): xfs_log_force: error 5 returned. [12920.030724] XFS (dm-8): xfs_log_force: error 5 returned. [12948.512529] XFS (dm-4): xfs_log_force: error 5 returned. [12948.512532] XFS (dm-6): xfs_log_force: error 5 returned. [12948.512534] XFS (dm-10): xfs_log_force: error 5 returned. [12948.640255] XFS (dm-12): xfs_log_force: error 5 returned. [12948.640257] XFS (dm-5): xfs_log_force: error 5 returned. [12948.640290] XFS (dm-11): xfs_log_force: error 5 returned. [12950.045188] XFS (dm-8): xfs_log_force: error 5 returned. [12978.526990] XFS (dm-4): xfs_log_force: error 5 returned. [12978.526992] XFS (dm-6): xfs_log_force: error 5 returned. [12978.526994] XFS (dm-10): xfs_log_force: error 5 returned. [12978.654709] XFS (dm-12): xfs_log_force: error 5 returned. [12978.654711] XFS (dm-5): xfs_log_force: error 5 returned. [12978.654768] XFS (dm-11): xfs_log_force: error 5 returned. [12980.059641] XFS (dm-8): xfs_log_force: error 5 returned. [13008.541442] XFS (dm-4): xfs_log_force: error 5 returned. [13008.541445] XFS (dm-6): xfs_log_force: error 5 returned. [13008.541447] XFS (dm-10): xfs_log_force: error 5 returned. [13008.669167] XFS (dm-12): xfs_log_force: error 5 returned. [13008.669169] XFS (dm-5): xfs_log_force: error 5 returned. [13008.669178] XFS (dm-11): xfs_log_force: error 5 returned. [13010.074097] XFS (dm-8): xfs_log_force: error 5 returned. [13038.555900] XFS (dm-4): xfs_log_force: error 5 returned. [13038.555902] XFS (dm-6): xfs_log_force: error 5 returned. [13038.555904] XFS (dm-10): xfs_log_force: error 5 returned. [13038.683624] XFS (dm-5): xfs_log_force: error 5 returned. [13038.683627] XFS (dm-12): xfs_log_force: error 5 returned. [13038.683707] XFS (dm-11): xfs_log_force: error 5 returned. [13040.088560] XFS (dm-8): xfs_log_force: error 5 returned. [13068.570364] XFS (dm-4): xfs_log_force: error 5 returned. [13068.570366] XFS (dm-6): xfs_log_force: error 5 returned. [13068.570368] XFS (dm-10): xfs_log_force: error 5 returned. [13068.698079] XFS (dm-5): xfs_log_force: error 5 returned. [13068.698082] XFS (dm-12): xfs_log_force: error 5 returned. [13068.698118] XFS (dm-11): xfs_log_force: error 5 returned. [13070.103014] XFS (dm-8): xfs_log_force: error 5 returned. [13098.584818] XFS (dm-4): xfs_log_force: error 5 returned. [13098.584820] XFS (dm-6): xfs_log_force: error 5 returned. [13098.584822] XFS (dm-10): xfs_log_force: error 5 returned. [13098.712543] XFS (dm-12): xfs_log_force: error 5 returned. [13098.712545] XFS (dm-5): xfs_log_force: error 5 returned. [13098.712547] XFS (dm-11): xfs_log_force: error 5 returned. [13100.117474] XFS (dm-8): xfs_log_force: error 5 returned. [13128.599279] XFS (dm-4): xfs_log_force: error 5 returned. [13128.599281] XFS (dm-6): xfs_log_force: error 5 returned. [13128.599283] XFS (dm-10): xfs_log_force: error 5 returned. [13128.726996] XFS (dm-12): xfs_log_force: error 5 returned. [13128.726999] XFS (dm-5): xfs_log_force: error 5 returned. [13128.727015] XFS (dm-11): xfs_log_force: error 5 returned. [13130.131930] XFS (dm-8): xfs_log_force: error 5 returned. [13158.613730] XFS (dm-4): xfs_log_force: error 5 returned. [13158.613733] XFS (dm-6): xfs_log_force: error 5 returned. [13158.613734] XFS (dm-10): xfs_log_force: error 5 returned. [13158.741456] XFS (dm-12): xfs_log_force: error 5 returned. [13158.741458] XFS (dm-5): xfs_log_force: error 5 returned. [13158.741483] XFS (dm-11): xfs_log_force: error 5 returned. [13160.146390] XFS (dm-8): xfs_log_force: error 5 returned. [13188.628191] XFS (dm-4): xfs_log_force: error 5 returned. [13188.628195] XFS (dm-6): xfs_log_force: error 5 returned. [13188.628197] XFS (dm-10): xfs_log_force: error 5 returned. [13188.755912] XFS (dm-5): xfs_log_force: error 5 returned. [13188.755919] XFS (dm-12): xfs_log_force: error 5 returned. [13188.755935] XFS (dm-11): xfs_log_force: error 5 returned. [13190.160846] XFS (dm-8): xfs_log_force: error 5 returned. [13218.642653] XFS (dm-4): xfs_log_force: error 5 returned. [13218.642656] XFS (dm-6): xfs_log_force: error 5 returned. [13218.642658] XFS (dm-10): xfs_log_force: error 5 returned. [13218.770368] XFS (dm-5): xfs_log_force: error 5 returned. [13218.770378] XFS (dm-12): xfs_log_force: error 5 returned. [13218.770413] XFS (dm-11): xfs_log_force: error 5 returned. [13220.175303] XFS (dm-8): xfs_log_force: error 5 returned. [13248.657114] XFS (dm-4): xfs_log_force: error 5 returned. [13248.657116] XFS (dm-6): xfs_log_force: error 5 returned. [13248.657118] XFS (dm-10): xfs_log_force: error 5 returned. [13248.784830] XFS (dm-12): xfs_log_force: error 5 returned. [13248.784838] XFS (dm-5): xfs_log_force: error 5 returned. [13248.784872] XFS (dm-11): xfs_log_force: error 5 returned. [13250.189765] XFS (dm-8): xfs_log_force: error 5 returned. [13278.671569] XFS (dm-4): xfs_log_force: error 5 returned. [13278.671572] XFS (dm-6): xfs_log_force: error 5 returned. [13278.671574] XFS (dm-10): xfs_log_force: error 5 returned. [13278.799286] XFS (dm-12): xfs_log_force: error 5 returned. [13278.799288] XFS (dm-5): xfs_log_force: error 5 returned. [13278.799305] XFS (dm-11): xfs_log_force: error 5 returned. [13280.204216] XFS (dm-8): xfs_log_force: error 5 returned. [13308.686020] XFS (dm-4): xfs_log_force: error 5 returned. [13308.686022] XFS (dm-6): xfs_log_force: error 5 returned. [13308.686024] XFS (dm-10): xfs_log_force: error 5 returned. [13308.813745] XFS (dm-12): xfs_log_force: error 5 returned. [13308.813747] XFS (dm-5): xfs_log_force: error 5 returned. [13308.813810] XFS (dm-11): xfs_log_force: error 5 returned. [13310.218673] XFS (dm-8): xfs_log_force: error 5 returned. [13338.700477] XFS (dm-4): xfs_log_force: error 5 returned. [13338.700480] XFS (dm-6): xfs_log_force: error 5 returned. [13338.700482] XFS (dm-10): xfs_log_force: error 5 returned. [13338.828201] XFS (dm-5): xfs_log_force: error 5 returned. [13338.828203] XFS (dm-12): xfs_log_force: error 5 returned. [13338.828247] XFS (dm-11): xfs_log_force: error 5 returned. [13340.233139] XFS (dm-8): xfs_log_force: error 5 returned. [13368.714947] XFS (dm-4): xfs_log_force: error 5 returned. [13368.714950] XFS (dm-6): xfs_log_force: error 5 returned. [13368.714952] XFS (dm-10): xfs_log_force: error 5 returned. [13368.842657] XFS (dm-12): xfs_log_force: error 5 returned. [13368.842659] XFS (dm-5): xfs_log_force: error 5 returned. [13368.842761] XFS (dm-11): xfs_log_force: error 5 returned. [13370.247592] XFS (dm-8): xfs_log_force: error 5 returned. [13398.729394] XFS (dm-4): xfs_log_force: error 5 returned. [13398.729397] XFS (dm-6): xfs_log_force: error 5 returned. [13398.729399] XFS (dm-10): xfs_log_force: error 5 returned. [13398.857119] XFS (dm-12): xfs_log_force: error 5 returned. [13398.857121] XFS (dm-5): xfs_log_force: error 5 returned. [13398.857189] XFS (dm-11): xfs_log_force: error 5 returned. [13400.262047] XFS (dm-8): xfs_log_force: error 5 returned. [13428.743854] XFS (dm-4): xfs_log_force: error 5 returned. [13428.743857] XFS (dm-6): xfs_log_force: error 5 returned. [13428.743858] XFS (dm-10): xfs_log_force: error 5 returned. [13428.871572] XFS (dm-5): xfs_log_force: error 5 returned. [13428.871575] XFS (dm-12): xfs_log_force: error 5 returned. [13428.871685] XFS (dm-11): xfs_log_force: error 5 returned. [13430.276507] XFS (dm-8): xfs_log_force: error 5 returned. [13458.758306] XFS (dm-4): xfs_log_force: error 5 returned. [13458.758309] XFS (dm-6): xfs_log_force: error 5 returned. [13458.758311] XFS (dm-10): xfs_log_force: error 5 returned. [13458.886030] XFS (dm-12): xfs_log_force: error 5 returned. [13458.886033] XFS (dm-5): xfs_log_force: error 5 returned. [13458.886132] XFS (dm-11): xfs_log_force: error 5 returned. [13460.290960] XFS (dm-8): xfs_log_force: error 5 returned. [13488.772763] XFS (dm-4): xfs_log_force: error 5 returned. [13488.772766] XFS (dm-6): xfs_log_force: error 5 returned. [13488.772768] XFS (dm-10): xfs_log_force: error 5 returned. [13488.900488] XFS (dm-12): xfs_log_force: error 5 returned. [13488.900490] XFS (dm-5): xfs_log_force: error 5 returned. [13488.900619] XFS (dm-11): xfs_log_force: error 5 returned. [13490.305424] XFS (dm-8): xfs_log_force: error 5 returned. [13518.787228] XFS (dm-4): xfs_log_force: error 5 returned. [13518.787231] XFS (dm-6): xfs_log_force: error 5 returned. [13518.787232] XFS (dm-10): xfs_log_force: error 5 returned. [13518.914943] XFS (dm-5): xfs_log_force: error 5 returned. [13518.914946] XFS (dm-12): xfs_log_force: error 5 returned. [13518.915075] XFS (dm-11): xfs_log_force: error 5 returned. [13520.319879] XFS (dm-8): xfs_log_force: error 5 returned. [13548.801682] XFS (dm-4): xfs_log_force: error 5 returned. [13548.801685] XFS (dm-6): xfs_log_force: error 5 returned. [13548.801687] XFS (dm-10): xfs_log_force: error 5 returned. [13548.929407] XFS (dm-12): xfs_log_force: error 5 returned. [13548.929410] XFS (dm-5): xfs_log_force: error 5 returned. [13548.929559] XFS (dm-11): xfs_log_force: error 5 returned. [13550.334333] XFS (dm-8): xfs_log_force: error 5 returned. [13578.816143] XFS (dm-4): xfs_log_force: error 5 returned. [13578.816146] XFS (dm-6): xfs_log_force: error 5 returned. [13578.816147] XFS (dm-10): xfs_log_force: error 5 returned. [13578.943861] XFS (dm-12): xfs_log_force: error 5 returned. [13578.943863] XFS (dm-5): xfs_log_force: error 5 returned. [13578.943929] XFS (dm-11): xfs_log_force: error 5 returned. [13580.348796] XFS (dm-8): xfs_log_force: error 5 returned. [13608.830595] XFS (dm-4): xfs_log_force: error 5 returned. [13608.830598] XFS (dm-6): xfs_log_force: error 5 returned. [13608.830599] XFS (dm-10): xfs_log_force: error 5 returned. [13608.958318] XFS (dm-12): xfs_log_force: error 5 returned. [13608.958322] XFS (dm-5): xfs_log_force: error 5 returned. [13608.958495] XFS (dm-11): xfs_log_force: error 5 returned. [13610.363254] XFS (dm-8): xfs_log_force: error 5 returned. [13638.845053] XFS (dm-4): xfs_log_force: error 5 returned. [13638.845056] XFS (dm-6): xfs_log_force: error 5 returned. [13638.845058] XFS (dm-10): xfs_log_force: error 5 returned. [13638.972778] XFS (dm-5): xfs_log_force: error 5 returned. [13638.972780] XFS (dm-12): xfs_log_force: error 5 returned. [13638.972784] XFS (dm-11): xfs_log_force: error 5 returned. [13640.377715] XFS (dm-8): xfs_log_force: error 5 returned. [13668.859524] XFS (dm-4): xfs_log_force: error 5 returned. [13668.859526] XFS (dm-6): xfs_log_force: error 5 returned. [13668.859528] XFS (dm-10): xfs_log_force: error 5 returned. [13668.987234] XFS (dm-12): xfs_log_force: error 5 returned. [13668.987236] XFS (dm-5): xfs_log_force: error 5 returned. [13668.987257] XFS (dm-11): xfs_log_force: error 5 returned. [13670.392168] XFS (dm-8): xfs_log_force: error 5 returned. [13698.873972] XFS (dm-4): xfs_log_force: error 5 returned. [13698.873975] XFS (dm-6): xfs_log_force: error 5 returned. [13698.873977] XFS (dm-10): xfs_log_force: error 5 returned. [13699.001697] XFS (dm-12): xfs_log_force: error 5 returned. [13699.001699] XFS (dm-5): xfs_log_force: error 5 returned. [13699.001721] XFS (dm-11): xfs_log_force: error 5 returned. [13700.406631] XFS (dm-8): xfs_log_force: error 5 returned. [13728.888433] XFS (dm-4): xfs_log_force: error 5 returned. [13728.888436] XFS (dm-6): xfs_log_force: error 5 returned. [13728.888437] XFS (dm-10): xfs_log_force: error 5 returned. [13729.016152] XFS (dm-12): xfs_log_force: error 5 returned. [13729.016154] XFS (dm-5): xfs_log_force: error 5 returned. [13729.016189] XFS (dm-11): xfs_log_force: error 5 returned. [13730.421083] XFS (dm-8): xfs_log_force: error 5 returned. [13758.902885] XFS (dm-4): xfs_log_force: error 5 returned. [13758.902888] XFS (dm-6): xfs_log_force: error 5 returned. [13758.902890] XFS (dm-10): xfs_log_force: error 5 returned. [13759.030611] XFS (dm-12): xfs_log_force: error 5 returned. [13759.030613] XFS (dm-5): xfs_log_force: error 5 returned. [13759.030618] XFS (dm-11): xfs_log_force: error 5 returned. [13760.435541] XFS (dm-8): xfs_log_force: error 5 returned. [13788.917344] XFS (dm-4): xfs_log_force: error 5 returned. [13788.917346] XFS (dm-6): xfs_log_force: error 5 returned. [13788.917348] XFS (dm-10): xfs_log_force: error 5 returned. [13789.045068] XFS (dm-5): xfs_log_force: error 5 returned. [13789.045071] XFS (dm-12): xfs_log_force: error 5 returned. [13789.045126] XFS (dm-11): xfs_log_force: error 5 returned. [13790.450005] XFS (dm-8): xfs_log_force: error 5 returned. [13818.931815] XFS (dm-4): xfs_log_force: error 5 returned. [13818.931818] XFS (dm-6): xfs_log_force: error 5 returned. [13818.931820] XFS (dm-10): xfs_log_force: error 5 returned. [13819.059526] XFS (dm-12): xfs_log_force: error 5 returned. [13819.059528] XFS (dm-5): xfs_log_force: error 5 returned. [13819.059564] XFS (dm-11): xfs_log_force: error 5 returned. [13820.464460] XFS (dm-8): xfs_log_force: error 5 returned. [13848.946267] XFS (dm-4): xfs_log_force: error 5 returned. [13848.946269] XFS (dm-6): xfs_log_force: error 5 returned. [13848.946271] XFS (dm-10): xfs_log_force: error 5 returned. [13849.073991] XFS (dm-12): xfs_log_force: error 5 returned. [13849.073994] XFS (dm-5): xfs_log_force: error 5 returned. [13849.074066] XFS (dm-11): xfs_log_force: error 5 returned. [13850.478923] XFS (dm-8): xfs_log_force: error 5 returned. [13878.960730] XFS (dm-4): xfs_log_force: error 5 returned. [13878.960733] XFS (dm-6): xfs_log_force: error 5 returned. [13878.960735] XFS (dm-10): xfs_log_force: error 5 returned. [13879.088448] XFS (dm-12): xfs_log_force: error 5 returned. [13879.088450] XFS (dm-5): xfs_log_force: error 5 returned. [13879.088515] XFS (dm-11): xfs_log_force: error 5 returned. [13880.493382] XFS (dm-8): xfs_log_force: error 5 returned. [13908.975183] XFS (dm-4): xfs_log_force: error 5 returned. [13908.975185] XFS (dm-6): xfs_log_force: error 5 returned. [13908.975187] XFS (dm-10): xfs_log_force: error 5 returned. [13909.102909] XFS (dm-12): xfs_log_force: error 5 returned. [13909.102911] XFS (dm-5): xfs_log_force: error 5 returned. [13909.102923] XFS (dm-11): xfs_log_force: error 5 returned. [13910.507838] XFS (dm-8): xfs_log_force: error 5 returned. [13938.989642] XFS (dm-4): xfs_log_force: error 5 returned. [13938.989645] XFS (dm-6): xfs_log_force: error 5 returned. [13938.989647] XFS (dm-10): xfs_log_force: error 5 returned. [13939.117366] XFS (dm-5): xfs_log_force: error 5 returned. [13939.117369] XFS (dm-12): xfs_log_force: error 5 returned. [13939.117372] XFS (dm-11): xfs_log_force: error 5 returned. [13940.522300] XFS (dm-8): xfs_log_force: error 5 returned. [13969.004108] XFS (dm-4): xfs_log_force: error 5 returned. [13969.004110] XFS (dm-6): xfs_log_force: error 5 returned. [13969.004112] XFS (dm-10): xfs_log_force: error 5 returned. [13969.131823] XFS (dm-5): xfs_log_force: error 5 returned. [13969.131826] XFS (dm-12): xfs_log_force: error 5 returned. [13969.131847] XFS (dm-11): xfs_log_force: error 5 returned. [13970.536758] XFS (dm-8): xfs_log_force: error 5 returned. [13999.018563] XFS (dm-4): xfs_log_force: error 5 returned. [13999.018565] XFS (dm-6): xfs_log_force: error 5 returned. [13999.018567] XFS (dm-10): xfs_log_force: error 5 returned. [13999.146285] XFS (dm-12): xfs_log_force: error 5 returned. [13999.146288] XFS (dm-5): xfs_log_force: error 5 returned. [13999.146323] XFS (dm-11): xfs_log_force: error 5 returned. [14000.551221] XFS (dm-8): xfs_log_force: error 5 returned. [14029.033024] XFS (dm-4): xfs_log_force: error 5 returned. [14029.033026] XFS (dm-6): xfs_log_force: error 5 returned. [14029.033028] XFS (dm-10): xfs_log_force: error 5 returned. [14029.160742] XFS (dm-12): xfs_log_force: error 5 returned. [14029.160745] XFS (dm-5): xfs_log_force: error 5 returned. [14029.160761] XFS (dm-11): xfs_log_force: error 5 returned. [14030.565673] XFS (dm-8): xfs_log_force: error 5 returned. [14059.047480] XFS (dm-4): xfs_log_force: error 5 returned. [14059.047483] XFS (dm-6): xfs_log_force: error 5 returned. [14059.047486] XFS (dm-10): xfs_log_force: error 5 returned. [14059.175203] XFS (dm-12): xfs_log_force: error 5 returned. [14059.175206] XFS (dm-5): xfs_log_force: error 5 returned. [14059.175273] XFS (dm-11): xfs_log_force: error 5 returned. [14060.580132] XFS (dm-8): xfs_log_force: error 5 returned. [14089.061936] XFS (dm-4): xfs_log_force: error 5 returned. [14089.061939] XFS (dm-6): xfs_log_force: error 5 returned. [14089.061941] XFS (dm-10): xfs_log_force: error 5 returned. [14089.189660] XFS (dm-12): xfs_log_force: error 5 returned. [14089.189662] XFS (dm-5): xfs_log_force: error 5 returned. [14089.189716] XFS (dm-11): xfs_log_force: error 5 returned. [14090.594597] XFS (dm-8): xfs_log_force: error 5 returned. [14119.076400] XFS (dm-4): xfs_log_force: error 5 returned. [14119.076402] XFS (dm-6): xfs_log_force: error 5 returned. [14119.076404] XFS (dm-10): xfs_log_force: error 5 returned. [14119.204115] XFS (dm-5): xfs_log_force: error 5 returned. [14119.204118] XFS (dm-12): xfs_log_force: error 5 returned. [14119.204212] XFS (dm-11): xfs_log_force: error 5 returned. [14120.609051] XFS (dm-8): xfs_log_force: error 5 returned. [14149.090854] XFS (dm-4): xfs_log_force: error 5 returned. [14149.090857] XFS (dm-6): xfs_log_force: error 5 returned. [14149.090859] XFS (dm-10): xfs_log_force: error 5 returned. [14149.218579] XFS (dm-12): xfs_log_force: error 5 returned. [14149.218582] XFS (dm-11): xfs_log_force: error 5 returned. [14149.218584] XFS (dm-5): xfs_log_force: error 5 returned. [14150.623507] XFS (dm-8): xfs_log_force: error 5 returned. [14179.105317] XFS (dm-4): xfs_log_force: error 5 returned. [14179.105320] XFS (dm-6): xfs_log_force: error 5 returned. [14179.105322] XFS (dm-10): xfs_log_force: error 5 returned. [14179.233034] XFS (dm-12): xfs_log_force: error 5 returned. [14179.233036] XFS (dm-5): xfs_log_force: error 5 returned. [14179.233044] XFS (dm-11): xfs_log_force: error 5 returned. [14180.637968] XFS (dm-8): xfs_log_force: error 5 returned. [14209.119768] XFS (dm-4): xfs_log_force: error 5 returned. [14209.119770] XFS (dm-6): xfs_log_force: error 5 returned. [14209.119772] XFS (dm-10): xfs_log_force: error 5 returned. [14209.247492] XFS (dm-12): xfs_log_force: error 5 returned. [14209.247495] XFS (dm-5): xfs_log_force: error 5 returned. [14209.247520] XFS (dm-11): xfs_log_force: error 5 returned. [14210.652422] XFS (dm-8): xfs_log_force: error 5 returned. [14239.134226] XFS (dm-4): xfs_log_force: error 5 returned. [14239.134229] XFS (dm-6): xfs_log_force: error 5 returned. [14239.134231] XFS (dm-10): xfs_log_force: error 5 returned. [14239.261950] XFS (dm-5): xfs_log_force: error 5 returned. [14239.261953] XFS (dm-12): xfs_log_force: error 5 returned. [14239.261984] XFS (dm-11): xfs_log_force: error 5 returned. [14240.666886] XFS (dm-8): xfs_log_force: error 5 returned. [14269.148698] XFS (dm-4): xfs_log_force: error 5 returned. [14269.148702] XFS (dm-6): xfs_log_force: error 5 returned. [14269.148704] XFS (dm-10): xfs_log_force: error 5 returned. [14269.276407] XFS (dm-12): xfs_log_force: error 5 returned. [14269.276410] XFS (dm-5): xfs_log_force: error 5 returned. [14269.276453] XFS (dm-11): xfs_log_force: error 5 returned. [14270.681342] XFS (dm-8): xfs_log_force: error 5 returned. [14299.163152] XFS (dm-4): xfs_log_force: error 5 returned. [14299.163155] XFS (dm-6): xfs_log_force: error 5 returned. [14299.163157] XFS (dm-10): xfs_log_force: error 5 returned. [14299.290871] XFS (dm-12): xfs_log_force: error 5 returned. [14299.290878] XFS (dm-5): xfs_log_force: error 5 returned. [14299.290890] XFS (dm-11): xfs_log_force: error 5 returned. [14300.695797] XFS (dm-8): xfs_log_force: error 5 returned. [14329.177608] XFS (dm-4): xfs_log_force: error 5 returned. [14329.177610] XFS (dm-6): xfs_log_force: error 5 returned. [14329.177612] XFS (dm-10): xfs_log_force: error 5 returned. [14329.305326] XFS (dm-12): xfs_log_force: error 5 returned. [14329.305328] XFS (dm-5): xfs_log_force: error 5 returned. [14329.305398] XFS (dm-11): xfs_log_force: error 5 returned. [14330.710260] XFS (dm-8): xfs_log_force: error 5 returned. [14359.192061] XFS (dm-4): xfs_log_force: error 5 returned. [14359.192064] XFS (dm-6): xfs_log_force: error 5 returned. [14359.192066] XFS (dm-10): xfs_log_force: error 5 returned. [14359.319783] XFS (dm-12): xfs_log_force: error 5 returned. [14359.319787] XFS (dm-5): xfs_log_force: error 5 returned. [14359.319790] XFS (dm-11): xfs_log_force: error 5 returned. [14360.724718] XFS (dm-8): xfs_log_force: error 5 returned. [14389.206519] XFS (dm-4): xfs_log_force: error 5 returned. [14389.206522] XFS (dm-6): xfs_log_force: error 5 returned. [14389.206524] XFS (dm-10): xfs_log_force: error 5 returned. [14389.334242] XFS (dm-5): xfs_log_force: error 5 returned. [14389.334245] XFS (dm-12): xfs_log_force: error 5 returned. [14389.334254] XFS (dm-11): xfs_log_force: error 5 returned. [14390.739179] XFS (dm-8): xfs_log_force: error 5 returned. [14419.220982] XFS (dm-4): xfs_log_force: error 5 returned. [14419.220984] XFS (dm-6): xfs_log_force: error 5 returned. [14419.220986] XFS (dm-10): xfs_log_force: error 5 returned. [14419.348697] XFS (dm-5): xfs_log_force: error 5 returned. [14419.348699] XFS (dm-12): xfs_log_force: error 5 returned. [14419.348732] XFS (dm-11): xfs_log_force: error 5 returned. [14420.753632] XFS (dm-8): xfs_log_force: error 5 returned. [14449.235440] XFS (dm-4): xfs_log_force: error 5 returned. [14449.235442] XFS (dm-6): xfs_log_force: error 5 returned. [14449.235445] XFS (dm-10): xfs_log_force: error 5 returned. [14449.363159] XFS (dm-12): xfs_log_force: error 5 returned. [14449.363165] XFS (dm-5): xfs_log_force: error 5 returned. [14449.363205] XFS (dm-11): xfs_log_force: error 5 returned. [14450.768094] XFS (dm-8): xfs_log_force: error 5 returned. [14479.249893] XFS (dm-4): xfs_log_force: error 5 returned. [14479.249896] XFS (dm-6): xfs_log_force: error 5 returned. [14479.249898] XFS (dm-10): xfs_log_force: error 5 returned. [14479.377612] XFS (dm-12): xfs_log_force: error 5 returned. [14479.377614] XFS (dm-5): xfs_log_force: error 5 returned. [14479.377665] XFS (dm-11): xfs_log_force: error 5 returned. [14480.782551] XFS (dm-8): xfs_log_force: error 5 returned. [14509.264344] XFS (dm-4): xfs_log_force: error 5 returned. [14509.264347] XFS (dm-6): xfs_log_force: error 5 returned. [14509.264349] XFS (dm-10): xfs_log_force: error 5 returned. [14509.392069] XFS (dm-12): xfs_log_force: error 5 returned. [14509.392071] XFS (dm-5): xfs_log_force: error 5 returned. [14509.392079] XFS (dm-11): xfs_log_force: error 5 returned. [14510.796998] XFS (dm-8): xfs_log_force: error 5 returned. [14539.278801] XFS (dm-4): xfs_log_force: error 5 returned. [14539.278804] XFS (dm-6): xfs_log_force: error 5 returned. [14539.278806] XFS (dm-10): xfs_log_force: error 5 returned. [14539.406524] XFS (dm-5): xfs_log_force: error 5 returned. [14539.406528] XFS (dm-12): xfs_log_force: error 5 returned. [14539.406606] XFS (dm-11): xfs_log_force: error 5 returned. [14540.811461] XFS (dm-8): xfs_log_force: error 5 returned. [14569.293264] XFS (dm-4): xfs_log_force: error 5 returned. [14569.293267] XFS (dm-6): xfs_log_force: error 5 returned. [14569.293269] XFS (dm-10): xfs_log_force: error 5 returned. [14569.420980] XFS (dm-5): xfs_log_force: error 5 returned. [14569.420982] XFS (dm-12): xfs_log_force: error 5 returned. [14569.421020] XFS (dm-11): xfs_log_force: error 5 returned. [14570.825915] XFS (dm-8): xfs_log_force: error 5 returned. [14599.307725] XFS (dm-4): xfs_log_force: error 5 returned. [14599.307728] XFS (dm-6): xfs_log_force: error 5 returned. [14599.307729] XFS (dm-10): xfs_log_force: error 5 returned. [14599.435443] XFS (dm-12): xfs_log_force: error 5 returned. [14599.435450] XFS (dm-5): xfs_log_force: error 5 returned. [14599.435548] XFS (dm-11): xfs_log_force: error 5 returned. [14600.840375] XFS (dm-8): xfs_log_force: error 5 returned. [14629.322179] XFS (dm-4): xfs_log_force: error 5 returned. [14629.322182] XFS (dm-6): xfs_log_force: error 5 returned. [14629.322184] XFS (dm-10): xfs_log_force: error 5 returned. [14629.449897] XFS (dm-12): xfs_log_force: error 5 returned. [14629.449900] XFS (dm-5): xfs_log_force: error 5 returned. [14629.449966] XFS (dm-11): xfs_log_force: error 5 returned. [14630.854831] XFS (dm-8): xfs_log_force: error 5 returned. [14659.336632] XFS (dm-4): xfs_log_force: error 5 returned. [14659.336634] XFS (dm-6): xfs_log_force: error 5 returned. [14659.336636] XFS (dm-10): xfs_log_force: error 5 returned. [14659.464357] XFS (dm-12): xfs_log_force: error 5 returned. [14659.464359] XFS (dm-5): xfs_log_force: error 5 returned. [14659.464527] XFS (dm-11): xfs_log_force: error 5 returned. [14660.869290] XFS (dm-8): xfs_log_force: error 5 returned. [14689.351091] XFS (dm-4): xfs_log_force: error 5 returned. [14689.351093] XFS (dm-6): xfs_log_force: error 5 returned. [14689.351095] XFS (dm-10): xfs_log_force: error 5 returned. [14689.478815] XFS (dm-5): xfs_log_force: error 5 returned. [14689.478818] XFS (dm-12): xfs_log_force: error 5 returned. [14689.478823] XFS (dm-11): xfs_log_force: error 5 returned. [14690.883748] XFS (dm-8): xfs_log_force: error 5 returned. [14719.365563] XFS (dm-4): xfs_log_force: error 5 returned. [14719.365566] XFS (dm-6): xfs_log_force: error 5 returned. [14719.365568] XFS (dm-10): xfs_log_force: error 5 returned. [14719.493273] XFS (dm-12): xfs_log_force: error 5 returned. [14719.493275] XFS (dm-5): xfs_log_force: error 5 returned. [14719.493285] XFS (dm-11): xfs_log_force: error 5 returned. [14720.898207] XFS (dm-8): xfs_log_force: error 5 returned. [14749.380019] XFS (dm-4): xfs_log_force: error 5 returned. [14749.380021] XFS (dm-6): xfs_log_force: error 5 returned. [14749.380023] XFS (dm-10): xfs_log_force: error 5 returned. [14749.507735] XFS (dm-12): xfs_log_force: error 5 returned. [14749.507743] XFS (dm-5): xfs_log_force: error 5 returned. [14749.507755] XFS (dm-11): xfs_log_force: error 5 returned. [14750.912671] XFS (dm-8): xfs_log_force: error 5 returned. [14779.394473] XFS (dm-4): xfs_log_force: error 5 returned. [14779.394476] XFS (dm-6): xfs_log_force: error 5 returned. [14779.394478] XFS (dm-10): xfs_log_force: error 5 returned. [14779.522193] XFS (dm-12): xfs_log_force: error 5 returned. [14779.522199] XFS (dm-5): xfs_log_force: error 5 returned. [14779.522210] XFS (dm-11): xfs_log_force: error 5 returned. [14780.927123] XFS (dm-8): xfs_log_force: error 5 returned. [14809.408927] XFS (dm-4): xfs_log_force: error 5 returned. [14809.408930] XFS (dm-6): xfs_log_force: error 5 returned. [14809.408932] XFS (dm-10): xfs_log_force: error 5 returned. [14809.536653] XFS (dm-12): xfs_log_force: error 5 returned. [14809.536655] XFS (dm-5): xfs_log_force: error 5 returned. [14809.536703] XFS (dm-11): xfs_log_force: error 5 returned. [14810.941582] XFS (dm-8): xfs_log_force: error 5 returned. [14839.423386] XFS (dm-4): xfs_log_force: error 5 returned. [14839.423389] XFS (dm-6): xfs_log_force: error 5 returned. [14839.423390] XFS (dm-10): xfs_log_force: error 5 returned. [14839.551110] XFS (dm-12): xfs_log_force: error 5 returned. [14839.551112] XFS (dm-5): xfs_log_force: error 5 returned. [14839.551156] XFS (dm-11): xfs_log_force: error 5 returned. [14840.956047] XFS (dm-8): xfs_log_force: error 5 returned. [14869.437858] XFS (dm-4): xfs_log_force: error 5 returned. [14869.437860] XFS (dm-6): xfs_log_force: error 5 returned. [14869.437862] XFS (dm-10): xfs_log_force: error 5 returned. [14869.565568] XFS (dm-12): xfs_log_force: error 5 returned. [14869.565570] XFS (dm-5): xfs_log_force: error 5 returned. [14869.565631] XFS (dm-11): xfs_log_force: error 5 returned. [14870.970502] XFS (dm-8): xfs_log_force: error 5 returned. [14899.452314] XFS (dm-4): xfs_log_force: error 5 returned. [14899.452317] XFS (dm-6): xfs_log_force: error 5 returned. [14899.452319] XFS (dm-10): xfs_log_force: error 5 returned. [14899.580032] XFS (dm-12): xfs_log_force: error 5 returned. [14899.580039] XFS (dm-5): xfs_log_force: error 5 returned. [14899.580099] XFS (dm-11): xfs_log_force: error 5 returned. [14900.984960] XFS (dm-8): xfs_log_force: error 5 returned. [14929.466771] XFS (dm-4): xfs_log_force: error 5 returned. [14929.466773] XFS (dm-6): xfs_log_force: error 5 returned. [14929.466775] XFS (dm-10): xfs_log_force: error 5 returned. [14929.594489] XFS (dm-12): xfs_log_force: error 5 returned. [14929.594496] XFS (dm-5): xfs_log_force: error 5 returned. [14929.594580] XFS (dm-11): xfs_log_force: error 5 returned. [14930.999423] XFS (dm-8): xfs_log_force: error 5 returned. [14959.481225] XFS (dm-4): xfs_log_force: error 5 returned. [14959.481228] XFS (dm-6): xfs_log_force: error 5 returned. [14959.481230] XFS (dm-10): xfs_log_force: error 5 returned. [14959.608949] XFS (dm-12): xfs_log_force: error 5 returned. [14959.608952] XFS (dm-5): xfs_log_force: error 5 returned. [14959.609040] XFS (dm-11): xfs_log_force: error 5 returned. [14961.013880] XFS (dm-8): xfs_log_force: error 5 returned. [14989.495685] XFS (dm-4): xfs_log_force: error 5 returned. [14989.495688] XFS (dm-6): xfs_log_force: error 5 returned. [14989.495690] XFS (dm-10): xfs_log_force: error 5 returned. [14989.623409] XFS (dm-5): xfs_log_force: error 5 returned. [14989.623412] XFS (dm-12): xfs_log_force: error 5 returned. [14989.623511] XFS (dm-11): xfs_log_force: error 5 returned. [14991.028345] XFS (dm-8): xfs_log_force: error 5 returned. [15019.510157] XFS (dm-4): xfs_log_force: error 5 returned. [15019.510159] XFS (dm-6): xfs_log_force: error 5 returned. [15019.510161] XFS (dm-10): xfs_log_force: error 5 returned. [15019.637868] XFS (dm-12): xfs_log_force: error 5 returned. [15019.637870] XFS (dm-5): xfs_log_force: error 5 returned. [15019.637978] XFS (dm-11): xfs_log_force: error 5 returned. [15021.042801] XFS (dm-8): xfs_log_force: error 5 returned. [15049.524612] XFS (dm-4): xfs_log_force: error 5 returned. [15049.524615] XFS (dm-6): xfs_log_force: error 5 returned. [15049.524617] XFS (dm-10): xfs_log_force: error 5 returned. [15049.652331] XFS (dm-12): xfs_log_force: error 5 returned. [15049.652337] XFS (dm-5): xfs_log_force: error 5 returned. [15049.652349] XFS (dm-11): xfs_log_force: error 5 returned. [15051.057257] XFS (dm-8): xfs_log_force: error 5 returned. [15079.539067] XFS (dm-4): xfs_log_force: error 5 returned. [15079.539070] XFS (dm-6): xfs_log_force: error 5 returned. [15079.539072] XFS (dm-10): xfs_log_force: error 5 returned. [15079.666786] XFS (dm-12): xfs_log_force: error 5 returned. [15079.666792] XFS (dm-5): xfs_log_force: error 5 returned. [15079.666843] XFS (dm-11): xfs_log_force: error 5 returned. [15081.071720] XFS (dm-8): xfs_log_force: error 5 returned. [15109.553520] XFS (dm-4): xfs_log_force: error 5 returned. [15109.553523] XFS (dm-6): xfs_log_force: error 5 returned. [15109.553525] XFS (dm-10): xfs_log_force: error 5 returned. [15109.681243] XFS (dm-12): xfs_log_force: error 5 returned. [15109.681247] XFS (dm-5): xfs_log_force: error 5 returned. [15109.681294] XFS (dm-11): xfs_log_force: error 5 returned. [15111.086179] XFS (dm-8): xfs_log_force: error 5 returned. [15139.567978] XFS (dm-4): xfs_log_force: error 5 returned. [15139.567981] XFS (dm-6): xfs_log_force: error 5 returned. [15139.567983] XFS (dm-10): xfs_log_force: error 5 returned. [15139.695703] XFS (dm-5): xfs_log_force: error 5 returned. [15139.695705] XFS (dm-12): xfs_log_force: error 5 returned. [15139.695716] XFS (dm-11): xfs_log_force: error 5 returned. [15141.100646] XFS (dm-8): xfs_log_force: error 5 returned. [15169.582442] XFS (dm-4): xfs_log_force: error 5 returned. [15169.582445] XFS (dm-6): xfs_log_force: error 5 returned. [15169.582447] XFS (dm-10): xfs_log_force: error 5 returned. [15169.710158] XFS (dm-5): xfs_log_force: error 5 returned. [15169.710169] XFS (dm-12): xfs_log_force: error 5 returned. [15169.710185] XFS (dm-11): xfs_log_force: error 5 returned. [15171.115093] XFS (dm-8): xfs_log_force: error 5 returned. [15199.596902] XFS (dm-4): xfs_log_force: error 5 returned. [15199.596905] XFS (dm-6): xfs_log_force: error 5 returned. [15199.596907] XFS (dm-10): xfs_log_force: error 5 returned. [15199.724618] XFS (dm-12): xfs_log_force: error 5 returned. [15199.724628] XFS (dm-5): xfs_log_force: error 5 returned. [15199.724665] XFS (dm-11): xfs_log_force: error 5 returned. [15201.129555] XFS (dm-8): xfs_log_force: error 5 returned. [15229.611357] XFS (dm-4): xfs_log_force: error 5 returned. [15229.611360] XFS (dm-6): xfs_log_force: error 5 returned. [15229.611362] XFS (dm-10): xfs_log_force: error 5 returned. [15229.739075] XFS (dm-12): xfs_log_force: error 5 returned. [15229.739082] XFS (dm-11): xfs_log_force: error 5 returned. [15229.739085] XFS (dm-5): xfs_log_force: error 5 returned. [15231.144007] XFS (dm-8): xfs_log_force: error 5 returned. [15259.625809] XFS (dm-4): xfs_log_force: error 5 returned. [15259.625811] XFS (dm-6): xfs_log_force: error 5 returned. [15259.625813] XFS (dm-10): xfs_log_force: error 5 returned. [15259.753534] XFS (dm-12): xfs_log_force: error 5 returned. [15259.753536] XFS (dm-5): xfs_log_force: error 5 returned. [15259.753543] XFS (dm-11): xfs_log_force: error 5 returned. [15261.158463] XFS (dm-8): xfs_log_force: error 5 returned. [15289.640266] XFS (dm-4): xfs_log_force: error 5 returned. [15289.640268] XFS (dm-6): xfs_log_force: error 5 returned. [15289.640270] XFS (dm-10): xfs_log_force: error 5 returned. [15289.767990] XFS (dm-5): xfs_log_force: error 5 returned. [15289.767993] XFS (dm-12): xfs_log_force: error 5 returned. [15289.768017] XFS (dm-11): xfs_log_force: error 5 returned. [15291.172927] XFS (dm-8): xfs_log_force: error 5 returned. [15319.654736] XFS (dm-4): xfs_log_force: error 5 returned. [15319.654739] XFS (dm-6): xfs_log_force: error 5 returned. [15319.654741] XFS (dm-10): xfs_log_force: error 5 returned. [15319.782447] XFS (dm-12): xfs_log_force: error 5 returned. [15319.782450] XFS (dm-5): xfs_log_force: error 5 returned. [15319.782484] XFS (dm-11): xfs_log_force: error 5 returned. [15321.187380] XFS (dm-8): xfs_log_force: error 5 returned. [15349.669189] XFS (dm-4): xfs_log_force: error 5 returned. [15349.669191] XFS (dm-6): xfs_log_force: error 5 returned. [15349.669193] XFS (dm-10): xfs_log_force: error 5 returned. [15349.796907] XFS (dm-12): xfs_log_force: error 5 returned. [15349.796914] XFS (dm-5): xfs_log_force: error 5 returned. [15349.796950] XFS (dm-11): xfs_log_force: error 5 returned. [15351.201840] XFS (dm-8): xfs_log_force: error 5 returned. [15379.683644] XFS (dm-4): xfs_log_force: error 5 returned. [15379.683647] XFS (dm-6): xfs_log_force: error 5 returned. [15379.683649] XFS (dm-10): xfs_log_force: error 5 returned. [15379.811362] XFS (dm-12): xfs_log_force: error 5 returned. [15379.811369] XFS (dm-5): xfs_log_force: error 5 returned. [15379.811425] XFS (dm-11): xfs_log_force: error 5 returned. [15381.216295] XFS (dm-8): xfs_log_force: error 5 returned. [15409.698094] XFS (dm-4): xfs_log_force: error 5 returned. [15409.698097] XFS (dm-6): xfs_log_force: error 5 returned. [15409.698099] XFS (dm-10): xfs_log_force: error 5 returned. [15409.825820] XFS (dm-12): xfs_log_force: error 5 returned. [15409.825822] XFS (dm-5): xfs_log_force: error 5 returned. [15409.825885] XFS (dm-11): xfs_log_force: error 5 returned. [15411.230749] XFS (dm-8): xfs_log_force: error 5 returned. [15439.712552] XFS (dm-4): xfs_log_force: error 5 returned. [15439.712554] XFS (dm-6): xfs_log_force: error 5 returned. [15439.712556] XFS (dm-10): xfs_log_force: error 5 returned. [15439.840276] XFS (dm-5): xfs_log_force: error 5 returned. [15439.840279] XFS (dm-12): xfs_log_force: error 5 returned. [15439.840298] XFS (dm-11): xfs_log_force: error 5 returned. [15441.245209] XFS (dm-8): xfs_log_force: error 5 returned. [15469.727023] XFS (dm-4): xfs_log_force: error 5 returned. [15469.727025] XFS (dm-6): xfs_log_force: error 5 returned. [15469.727027] XFS (dm-10): xfs_log_force: error 5 returned. [15469.854733] XFS (dm-12): xfs_log_force: error 5 returned. [15469.854735] XFS (dm-5): xfs_log_force: error 5 returned. [15469.854778] XFS (dm-11): xfs_log_force: error 5 returned. [15471.259666] XFS (dm-8): xfs_log_force: error 5 returned. [15499.741477] XFS (dm-4): xfs_log_force: error 5 returned. [15499.741480] XFS (dm-6): xfs_log_force: error 5 returned. [15499.741482] XFS (dm-10): xfs_log_force: error 5 returned. [15499.869193] XFS (dm-12): xfs_log_force: error 5 returned. [15499.869201] XFS (dm-5): xfs_log_force: error 5 returned. [15499.869248] XFS (dm-11): xfs_log_force: error 5 returned. [15501.274129] XFS (dm-8): xfs_log_force: error 5 returned. [15529.755931] XFS (dm-4): xfs_log_force: error 5 returned. [15529.755934] XFS (dm-6): xfs_log_force: error 5 returned. [15529.755936] XFS (dm-10): xfs_log_force: error 5 returned. [15529.883650] XFS (dm-12): xfs_log_force: error 5 returned. [15529.883656] XFS (dm-5): xfs_log_force: error 5 returned. [15529.883668] XFS (dm-11): xfs_log_force: error 5 returned. [15531.288580] XFS (dm-8): xfs_log_force: error 5 returned. [15559.770383] XFS (dm-4): xfs_log_force: error 5 returned. [15559.770385] XFS (dm-6): xfs_log_force: error 5 returned. [15559.770387] XFS (dm-10): xfs_log_force: error 5 returned. [15559.898108] XFS (dm-12): xfs_log_force: error 5 returned. [15559.898111] XFS (dm-5): xfs_log_force: error 5 returned. [15559.898174] XFS (dm-11): xfs_log_force: error 5 returned. [15561.303040] XFS (dm-8): xfs_log_force: error 5 returned. [15589.784841] XFS (dm-4): xfs_log_force: error 5 returned. [15589.784843] XFS (dm-6): xfs_log_force: error 5 returned. [15589.784845] XFS (dm-10): xfs_log_force: error 5 returned. [15589.912565] XFS (dm-12): xfs_log_force: error 5 returned. [15589.912567] XFS (dm-5): xfs_log_force: error 5 returned. [15589.912612] XFS (dm-11): xfs_log_force: error 5 returned. [15591.317501] XFS (dm-8): xfs_log_force: error 5 returned. [15619.799305] XFS (dm-4): xfs_log_force: error 5 returned. [15619.799308] XFS (dm-6): xfs_log_force: error 5 returned. [15619.799310] XFS (dm-10): xfs_log_force: error 5 returned. [15619.927021] XFS (dm-5): xfs_log_force: error 5 returned. [15619.927025] XFS (dm-12): xfs_log_force: error 5 returned. [15619.927157] XFS (dm-11): xfs_log_force: error 5 returned. [15621.331957] XFS (dm-8): xfs_log_force: error 5 returned. [15649.813766] XFS (dm-4): xfs_log_force: error 5 returned. [15649.813769] XFS (dm-6): xfs_log_force: error 5 returned. [15649.813771] XFS (dm-10): xfs_log_force: error 5 returned. [15649.941486] XFS (dm-12): xfs_log_force: error 5 returned. [15649.941489] XFS (dm-11): xfs_log_force: error 5 returned. [15649.941491] XFS (dm-5): xfs_log_force: error 5 returned. [15651.346412] XFS (dm-8): xfs_log_force: error 5 returned. [15679.828221] XFS (dm-4): xfs_log_force: error 5 returned. [15679.828224] XFS (dm-6): xfs_log_force: error 5 returned. [15679.828226] XFS (dm-10): xfs_log_force: error 5 returned. [15679.955940] XFS (dm-12): xfs_log_force: error 5 returned. [15679.955943] XFS (dm-11): xfs_log_force: error 5 returned. [15679.955945] XFS (dm-5): xfs_log_force: error 5 returned. [15681.360872] XFS (dm-8): xfs_log_force: error 5 returned. [15709.842673] XFS (dm-4): xfs_log_force: error 5 returned. [15709.842676] XFS (dm-6): xfs_log_force: error 5 returned. [15709.842678] XFS (dm-10): xfs_log_force: error 5 returned. [15709.970397] XFS (dm-12): xfs_log_force: error 5 returned. [15709.970400] XFS (dm-5): xfs_log_force: error 5 returned. [15709.970500] XFS (dm-11): xfs_log_force: error 5 returned. [15711.375330] XFS (dm-8): xfs_log_force: error 5 returned. [15739.857131] XFS (dm-4): xfs_log_force: error 5 returned. [15739.857134] XFS (dm-6): xfs_log_force: error 5 returned. [15739.857136] XFS (dm-10): xfs_log_force: error 5 returned. [15739.984856] XFS (dm-5): xfs_log_force: error 5 returned. [15739.984858] XFS (dm-12): xfs_log_force: error 5 returned. [15739.985032] XFS (dm-11): xfs_log_force: error 5 returned. [15741.389791] XFS (dm-8): xfs_log_force: error 5 returned. [15769.871602] XFS (dm-4): xfs_log_force: error 5 returned. [15769.871605] XFS (dm-6): xfs_log_force: error 5 returned. [15769.871607] XFS (dm-10): xfs_log_force: error 5 returned. [15769.999313] XFS (dm-12): xfs_log_force: error 5 returned. [15769.999315] XFS (dm-5): xfs_log_force: error 5 returned. [15769.999323] XFS (dm-11): xfs_log_force: error 5 returned. [15771.404246] XFS (dm-8): xfs_log_force: error 5 returned. [15799.886055] XFS (dm-4): xfs_log_force: error 5 returned. [15799.886058] XFS (dm-6): xfs_log_force: error 5 returned. [15799.886060] XFS (dm-10): xfs_log_force: error 5 returned. [15800.013775] XFS (dm-12): xfs_log_force: error 5 returned. [15800.013781] XFS (dm-5): xfs_log_force: error 5 returned. [15800.013789] XFS (dm-11): xfs_log_force: error 5 returned. [15801.418701] XFS (dm-8): xfs_log_force: error 5 returned. [15829.900508] XFS (dm-4): xfs_log_force: error 5 returned. [15829.900512] XFS (dm-6): xfs_log_force: error 5 returned. [15829.900515] XFS (dm-10): xfs_log_force: error 5 returned. [15830.028226] XFS (dm-5): xfs_log_force: error 5 returned. [15830.028229] XFS (dm-12): xfs_log_force: error 5 returned. [15830.028235] XFS (dm-11): xfs_log_force: error 5 returned. [15831.433163] XFS (dm-8): xfs_log_force: error 5 returned. [15859.914964] XFS (dm-4): xfs_log_force: error 5 returned. [15859.914968] XFS (dm-6): xfs_log_force: error 5 returned. [15859.914971] XFS (dm-10): xfs_log_force: error 5 returned. [15860.042681] XFS (dm-5): xfs_log_force: error 5 returned. [15860.042684] XFS (dm-12): xfs_log_force: error 5 returned. [15860.042705] XFS (dm-11): xfs_log_force: error 5 returned. [15861.447621] XFS (dm-8): xfs_log_force: error 5 returned. [15889.929419] XFS (dm-4): xfs_log_force: error 5 returned. [15889.929423] XFS (dm-6): xfs_log_force: error 5 returned. [15889.929425] XFS (dm-10): xfs_log_force: error 5 returned. [15890.057138] XFS (dm-5): xfs_log_force: error 5 returned. [15890.057142] XFS (dm-12): xfs_log_force: error 5 returned. [15890.057176] XFS (dm-11): xfs_log_force: error 5 returned. [15891.462075] XFS (dm-8): xfs_log_force: error 5 returned. [15919.943885] XFS (dm-4): xfs_log_force: error 5 returned. [15919.943889] XFS (dm-6): xfs_log_force: error 5 returned. [15919.943892] XFS (dm-10): xfs_log_force: error 5 returned. [15920.071597] XFS (dm-5): xfs_log_force: error 5 returned. [15920.071604] XFS (dm-12): xfs_log_force: error 5 returned. [15920.071646] XFS (dm-11): xfs_log_force: error 5 returned. [15921.476529] XFS (dm-8): xfs_log_force: error 5 returned. [15949.958337] XFS (dm-4): xfs_log_force: error 5 returned. [15949.958340] XFS (dm-6): xfs_log_force: error 5 returned. [15949.958342] XFS (dm-10): xfs_log_force: error 5 returned. [15950.086056] XFS (dm-12): xfs_log_force: error 5 returned. [15950.086061] XFS (dm-5): xfs_log_force: error 5 returned. [15950.086116] XFS (dm-11): xfs_log_force: error 5 returned. [15951.490989] XFS (dm-8): xfs_log_force: error 5 returned. [15979.972790] XFS (dm-4): xfs_log_force: error 5 returned. [15979.972793] XFS (dm-6): xfs_log_force: error 5 returned. [15979.972795] XFS (dm-10): xfs_log_force: error 5 returned. [15980.100510] XFS (dm-12): xfs_log_force: error 5 returned. [15980.100514] XFS (dm-5): xfs_log_force: error 5 returned. [15980.100583] XFS (dm-11): xfs_log_force: error 5 returned. [15981.505441] XFS (dm-8): xfs_log_force: error 5 returned. [16009.987242] XFS (dm-4): xfs_log_force: error 5 returned. [16009.987245] XFS (dm-6): xfs_log_force: error 5 returned. [16009.987247] XFS (dm-10): xfs_log_force: error 5 returned. [16010.114968] XFS (dm-12): xfs_log_force: error 5 returned. [16010.114970] XFS (dm-5): xfs_log_force: error 5 returned. [16010.114977] XFS (dm-11): xfs_log_force: error 5 returned. [16011.519899] XFS (dm-8): xfs_log_force: error 5 returned. [16040.001700] XFS (dm-4): xfs_log_force: error 5 returned. [16040.001702] XFS (dm-6): xfs_log_force: error 5 returned. [16040.001704] XFS (dm-10): xfs_log_force: error 5 returned. [16040.129423] XFS (dm-5): xfs_log_force: error 5 returned. [16040.129425] XFS (dm-11): xfs_log_force: error 5 returned. [16040.129435] XFS (dm-12): xfs_log_force: error 5 returned. [16041.534363] XFS (dm-8): xfs_log_force: error 5 returned. [16070.016172] XFS (dm-4): xfs_log_force: error 5 returned. [16070.016176] XFS (dm-6): xfs_log_force: error 5 returned. [16070.016178] XFS (dm-10): xfs_log_force: error 5 returned. [16070.143883] XFS (dm-12): xfs_log_force: error 5 returned. [16070.143886] XFS (dm-5): xfs_log_force: error 5 returned. [16070.143920] XFS (dm-11): xfs_log_force: error 5 returned. [16071.548814] XFS (dm-8): xfs_log_force: error 5 returned. [16100.030626] XFS (dm-4): xfs_log_force: error 5 returned. [16100.030631] XFS (dm-6): xfs_log_force: error 5 returned. [16100.030634] XFS (dm-10): xfs_log_force: error 5 returned. [16100.158339] XFS (dm-12): xfs_log_force: error 5 returned. [16100.158342] XFS (dm-5): xfs_log_force: error 5 returned. [16100.158345] XFS (dm-11): xfs_log_force: error 5 returned. [16101.563272] XFS (dm-8): xfs_log_force: error 5 returned. [16130.045081] XFS (dm-4): xfs_log_force: error 5 returned. [16130.045086] XFS (dm-6): xfs_log_force: error 5 returned. [16130.045088] XFS (dm-10): xfs_log_force: error 5 returned. [16130.172797] XFS (dm-12): xfs_log_force: error 5 returned. [16130.172806] XFS (dm-11): xfs_log_force: error 5 returned. [16130.172808] XFS (dm-5): xfs_log_force: error 5 returned. [16131.577730] XFS (dm-8): xfs_log_force: error 5 returned. [16160.059534] XFS (dm-4): xfs_log_force: error 5 returned. [16160.059538] XFS (dm-6): xfs_log_force: error 5 returned. [16160.059541] XFS (dm-10): xfs_log_force: error 5 returned. [16160.187255] XFS (dm-12): xfs_log_force: error 5 returned. [16160.187258] XFS (dm-5): xfs_log_force: error 5 returned. [16160.187389] XFS (dm-11): xfs_log_force: error 5 returned. [16161.592187] XFS (dm-8): xfs_log_force: error 5 returned. [16190.073992] XFS (dm-4): xfs_log_force: error 5 returned. [16190.073996] XFS (dm-6): xfs_log_force: error 5 returned. [16190.073999] XFS (dm-10): xfs_log_force: error 5 returned. [16190.201713] XFS (dm-5): xfs_log_force: error 5 returned. [16190.201719] XFS (dm-12): xfs_log_force: error 5 returned. [16190.201736] XFS (dm-11): xfs_log_force: error 5 returned. [16191.606647] XFS (dm-8): xfs_log_force: error 5 returned. [16220.088459] XFS (dm-4): xfs_log_force: error 5 returned. [16220.088462] XFS (dm-6): xfs_log_force: error 5 returned. [16220.088464] XFS (dm-10): xfs_log_force: error 5 returned. [16220.216170] XFS (dm-5): xfs_log_force: error 5 returned. [16220.216178] XFS (dm-12): xfs_log_force: error 5 returned. [16220.216325] XFS (dm-11): xfs_log_force: error 5 returned. [16221.621107] XFS (dm-8): xfs_log_force: error 5 returned. [16250.102915] XFS (dm-4): xfs_log_force: error 5 returned. [16250.102918] XFS (dm-6): xfs_log_force: error 5 returned. [16250.102920] XFS (dm-10): xfs_log_force: error 5 returned. [16250.230631] XFS (dm-12): xfs_log_force: error 5 returned. [16250.230633] XFS (dm-11): xfs_log_force: error 5 returned. [16250.230638] XFS (dm-5): xfs_log_force: error 5 returned. [16251.635566] XFS (dm-8): xfs_log_force: error 5 returned. [16280.117368] XFS (dm-4): xfs_log_force: error 5 returned. [16280.117371] XFS (dm-6): xfs_log_force: error 5 returned. [16280.117373] XFS (dm-10): xfs_log_force: error 5 returned. [16280.245087] XFS (dm-12): xfs_log_force: error 5 returned. [16280.245093] XFS (dm-5): xfs_log_force: error 5 returned. [16280.245105] XFS (dm-11): xfs_log_force: error 5 returned. [16281.650017] XFS (dm-8): xfs_log_force: error 5 returned. [16310.131820] XFS (dm-4): xfs_log_force: error 5 returned. [16310.131823] XFS (dm-6): xfs_log_force: error 5 returned. [16310.131825] XFS (dm-10): xfs_log_force: error 5 returned. [16310.259545] XFS (dm-12): xfs_log_force: error 5 returned. [16310.259547] XFS (dm-5): xfs_log_force: error 5 returned. [16310.259552] XFS (dm-11): xfs_log_force: error 5 returned. [16311.664477] XFS (dm-8): xfs_log_force: error 5 returned. [16340.146278] XFS (dm-4): xfs_log_force: error 5 returned. [16340.146280] XFS (dm-6): xfs_log_force: error 5 returned. [16340.146282] XFS (dm-10): xfs_log_force: error 5 returned. [16340.274002] XFS (dm-5): xfs_log_force: error 5 returned. [16340.274005] XFS (dm-12): xfs_log_force: error 5 returned. [16340.274020] XFS (dm-11): xfs_log_force: error 5 returned. [16341.678946] XFS (dm-8): xfs_log_force: error 5 returned. [16370.160749] XFS (dm-4): xfs_log_force: error 5 returned. [16370.160752] XFS (dm-6): xfs_log_force: error 5 returned. [16370.160754] XFS (dm-10): xfs_log_force: error 5 returned. [16370.288460] XFS (dm-5): xfs_log_force: error 5 returned. [16370.288463] XFS (dm-12): xfs_log_force: error 5 returned. [16370.288488] XFS (dm-11): xfs_log_force: error 5 returned. [16371.693394] XFS (dm-8): xfs_log_force: error 5 returned. [16400.175204] XFS (dm-4): xfs_log_force: error 5 returned. [16400.175206] XFS (dm-6): xfs_log_force: error 5 returned. [16400.175208] XFS (dm-10): xfs_log_force: error 5 returned. [16400.302923] XFS (dm-12): xfs_log_force: error 5 returned. [16400.302928] XFS (dm-5): xfs_log_force: error 5 returned. [16400.302957] XFS (dm-11): xfs_log_force: error 5 returned. [16401.707850] XFS (dm-8): xfs_log_force: error 5 returned. [16430.189662] XFS (dm-4): xfs_log_force: error 5 returned. [16430.189664] XFS (dm-6): xfs_log_force: error 5 returned. [16430.189666] XFS (dm-10): xfs_log_force: error 5 returned. [16430.317382] XFS (dm-12): xfs_log_force: error 5 returned. [16430.317387] XFS (dm-5): xfs_log_force: error 5 returned. [16430.317431] XFS (dm-11): xfs_log_force: error 5 returned. [16431.722315] XFS (dm-8): xfs_log_force: error 5 returned. [16460.204118] XFS (dm-4): xfs_log_force: error 5 returned. [16460.204120] XFS (dm-6): xfs_log_force: error 5 returned. [16460.204122] XFS (dm-10): xfs_log_force: error 5 returned. [16460.331843] XFS (dm-12): xfs_log_force: error 5 returned. [16460.331845] XFS (dm-5): xfs_log_force: error 5 returned. [16460.331900] XFS (dm-11): xfs_log_force: error 5 returned. [16461.736774] XFS (dm-8): xfs_log_force: error 5 returned. [16490.218579] XFS (dm-4): xfs_log_force: error 5 returned. [16490.218582] XFS (dm-6): xfs_log_force: error 5 returned. [16490.218584] XFS (dm-10): xfs_log_force: error 5 returned. [16490.346303] XFS (dm-5): xfs_log_force: error 5 returned. [16490.346314] XFS (dm-12): xfs_log_force: error 5 returned. [16490.346378] XFS (dm-11): xfs_log_force: error 5 returned. [16491.751239] XFS (dm-8): xfs_log_force: error 5 returned. [16520.233052] XFS (dm-4): xfs_log_force: error 5 returned. [16520.233054] XFS (dm-6): xfs_log_force: error 5 returned. [16520.233056] XFS (dm-10): xfs_log_force: error 5 returned. [16520.360764] XFS (dm-5): xfs_log_force: error 5 returned. [16520.360767] XFS (dm-12): xfs_log_force: error 5 returned. [16520.360843] XFS (dm-11): xfs_log_force: error 5 returned. [16521.765705] XFS (dm-8): xfs_log_force: error 5 returned. [16550.247509] XFS (dm-4): xfs_log_force: error 5 returned. [16550.247511] XFS (dm-6): xfs_log_force: error 5 returned. [16550.247513] XFS (dm-10): xfs_log_force: error 5 returned. [16550.375228] XFS (dm-12): xfs_log_force: error 5 returned. [16550.375234] XFS (dm-5): xfs_log_force: error 5 returned. [16550.375321] XFS (dm-11): xfs_log_force: error 5 returned. [16551.780153] XFS (dm-8): xfs_log_force: error 5 returned. [16580.261965] XFS (dm-4): xfs_log_force: error 5 returned. [16580.261968] XFS (dm-6): xfs_log_force: error 5 returned. [16580.261970] XFS (dm-10): xfs_log_force: error 5 returned. [16580.389684] XFS (dm-12): xfs_log_force: error 5 returned. [16580.389690] XFS (dm-5): xfs_log_force: error 5 returned. [16580.389740] XFS (dm-11): xfs_log_force: error 5 returned. [16581.794618] XFS (dm-8): xfs_log_force: error 5 returned. [16610.276419] XFS (dm-4): xfs_log_force: error 5 returned. [16610.276421] XFS (dm-6): xfs_log_force: error 5 returned. [16610.276423] XFS (dm-10): xfs_log_force: error 5 returned. [16610.404143] XFS (dm-12): xfs_log_force: error 5 returned. [16610.404146] XFS (dm-5): xfs_log_force: error 5 returned. [16610.404188] XFS (dm-11): xfs_log_force: error 5 returned. [16611.809078] XFS (dm-8): xfs_log_force: error 5 returned. [16640.290878] XFS (dm-4): xfs_log_force: error 5 returned. [16640.290880] XFS (dm-6): xfs_log_force: error 5 returned. [16640.290882] XFS (dm-10): xfs_log_force: error 5 returned. [16640.418602] XFS (dm-5): xfs_log_force: error 5 returned. [16640.418605] XFS (dm-12): xfs_log_force: error 5 returned. [16640.418724] XFS (dm-11): xfs_log_force: error 5 returned. [16641.823546] XFS (dm-8): xfs_log_force: error 5 returned. [16670.305348] XFS (dm-4): xfs_log_force: error 5 returned. [16670.305351] XFS (dm-6): xfs_log_force: error 5 returned. [16670.305353] XFS (dm-10): xfs_log_force: error 5 returned. [16670.433061] XFS (dm-5): xfs_log_force: error 5 returned. [16670.433068] XFS (dm-12): xfs_log_force: error 5 returned. [16670.433128] XFS (dm-11): xfs_log_force: error 5 returned. [16671.837994] XFS (dm-8): xfs_log_force: error 5 returned. [16700.319803] XFS (dm-4): xfs_log_force: error 5 returned. [16700.319805] XFS (dm-6): xfs_log_force: error 5 returned. [16700.319807] XFS (dm-10): xfs_log_force: error 5 returned. [16700.447523] XFS (dm-12): xfs_log_force: error 5 returned. [16700.447528] XFS (dm-5): xfs_log_force: error 5 returned. [16700.447656] XFS (dm-11): xfs_log_force: error 5 returned. [16701.852457] XFS (dm-8): xfs_log_force: error 5 returned. [16730.334256] XFS (dm-4): xfs_log_force: error 5 returned. [16730.334259] XFS (dm-6): xfs_log_force: error 5 returned. [16730.334260] XFS (dm-10): xfs_log_force: error 5 returned. [16730.461976] XFS (dm-12): xfs_log_force: error 5 returned. [16730.461981] XFS (dm-5): xfs_log_force: error 5 returned. [16730.462063] XFS (dm-11): xfs_log_force: error 5 returned. [16731.866907] XFS (dm-8): xfs_log_force: error 5 returned. [16760.348710] XFS (dm-4): xfs_log_force: error 5 returned. [16760.348713] XFS (dm-6): xfs_log_force: error 5 returned. [16760.348716] XFS (dm-10): xfs_log_force: error 5 returned. [16760.476434] XFS (dm-12): xfs_log_force: error 5 returned. [16760.476436] XFS (dm-5): xfs_log_force: error 5 returned. [16760.476459] XFS (dm-11): xfs_log_force: error 5 returned. [16761.881365] XFS (dm-8): xfs_log_force: error 5 returned. [16790.363166] XFS (dm-4): xfs_log_force: error 5 returned. [16790.363169] XFS (dm-6): xfs_log_force: error 5 returned. [16790.363171] XFS (dm-10): xfs_log_force: error 5 returned. [16790.490890] XFS (dm-5): xfs_log_force: error 5 returned. [16790.490901] XFS (dm-12): xfs_log_force: error 5 returned. [16790.491022] XFS (dm-11): xfs_log_force: error 5 returned. [16791.895824] XFS (dm-8): xfs_log_force: error 5 returned. [16798.555345] XFS (dm-4): xfs_log_force: error 5 returned. [16798.555352] XFS (dm-4): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16798.584982] XFS (dm-4): xfs_log_force: error 5 returned. [16798.623227] XFS (dm-4): xfs_log_force: error 5 returned. [16806.100829] XFS (dm-6): xfs_log_force: error 5 returned. [16806.100837] XFS (dm-6): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16806.131651] XFS (dm-6): xfs_log_force: error 5 returned. [16806.171364] XFS (dm-6): xfs_log_force: error 5 returned. [16812.785100] XFS (dm-8): xfs_log_force: error 5 returned. [16812.785107] XFS (dm-8): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16812.814558] XFS (dm-8): xfs_log_force: error 5 returned. [16812.849566] XFS (dm-8): xfs_log_force: error 5 returned. [16816.295231] XFS (dm-10): xfs_log_force: error 5 returned. [16816.295238] XFS (dm-10): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16816.325382] XFS (dm-10): xfs_log_force: error 5 returned. [16816.363627] XFS (dm-10): xfs_log_force: error 5 returned. [16820.505348] XFS (dm-5): xfs_log_force: error 5 returned. [16820.505351] XFS (dm-11): xfs_log_force: error 5 returned. [16820.505354] XFS (dm-12): xfs_log_force: error 5 returned. [16822.543907] XFS (dm-11): xfs_log_force: error 5 returned. [16822.543915] XFS (dm-11): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16822.573578] XFS (dm-11): xfs_log_force: error 5 returned. [16822.610507] XFS (dm-11): xfs_log_force: error 5 returned. [16829.659428] XFS (dm-5): xfs_log_force: error 5 returned. [16829.659435] XFS (dm-5): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16829.692325] XFS (dm-5): xfs_log_force: error 5 returned. [16829.729706] XFS (dm-5): xfs_log_force: error 5 returned. [16833.529927] XFS (dm-12): xfs_log_force: error 5 returned. [16833.529935] XFS (dm-12): xfs_do_force_shutdown(0x1) called from line 1031 of file fs/xfs/xfs_buf.c. Return address = 0xffffffffa025d2a9 [16833.559988] XFS (dm-12): xfs_log_force: error 5 returned. [16833.599082] XFS (dm-12): xfs_log_force: error 5 returned. [17369.624945] XFS (dm-4): Mounting Filesystem [17369.632013] XFS (dm-4): Starting recovery (logdev: internal) [17369.638476] XFS (dm-4): Ending recovery (logdev: internal) [17651.973225] XFS (dm-6): Mounting Filesystem [17651.979557] XFS (dm-6): Starting recovery (logdev: internal) [17651.986804] XFS (dm-6): Ending recovery (logdev: internal) [17714.780957] XFS (dm-8): Mounting Filesystem [17715.040586] XFS (dm-8): Starting recovery (logdev: internal) [17716.476591] XFS (dm-8): Ending recovery (logdev: internal) [17786.815091] XFS (dm-10): Mounting Filesystem [17786.984170] XFS (dm-10): Starting recovery (logdev: internal) [17787.413091] XFS (dm-10): Ending recovery (logdev: internal) [17901.190404] XFS (dm-5): Mounting Filesystem [17901.370431] XFS (dm-5): Starting recovery (logdev: internal) [17901.775778] XFS (dm-5): Ending recovery (logdev: internal) [23766.709975] XFS (dm-11): Mounting Filesystem [23766.716253] XFS (dm-11): Starting recovery (logdev: internal) [23766.723042] XFS (dm-11): Ending recovery (logdev: internal) [23826.394066] XFS (dm-12): Mounting Filesystem [23826.400403] XFS (dm-12): Starting recovery (logdev: internal) [23826.407246] XFS (dm-12): Ending recovery (logdev: internal) root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l001 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 1 - agno = 0 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 8 - agno = 7 - agno = 9 - agno = 10 - agno = 16 - agno = 15 - agno = 13 - agno = 12 - agno = 14 - agno = 11 - agno = 19 - agno = 20 - agno = 21 - agno = 18 - agno = 23 - agno = 22 - agno = 17 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 30 - agno = 29 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 42 - agno = 43 - agno = 41 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l011 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 17 - agno = 18 - agno = 9 - agno = 8 - agno = 19 - agno = 22 - agno = 20 - agno = 16 - agno = 23 - agno = 21 - agno = 10 - agno = 24 - agno = 11 - agno = 26 - agno = 27 - agno = 29 - agno = 30 - agno = 31 - agno = 28 - agno = 25 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l021 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 5 - agno = 4 - agno = 6 - agno = 8 - agno = 9 - agno = 7 - agno = 12 - agno = 10 - agno = 15 - agno = 16 - agno = 11 - agno = 13 - agno = 14 - agno = 17 - agno = 21 - agno = 19 - agno = 20 - agno = 22 - agno = 26 - agno = 28 - agno = 25 - agno = 31 - agno = 27 - agno = 24 - agno = 18 - agno = 29 - agno = 23 - agno = 30 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l031 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 1 - agno = 0 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 8 - agno = 7 - agno = 11 - agno = 9 - agno = 10 - agno = 13 - agno = 14 - agno = 18 - agno = 19 - agno = 21 - agno = 16 - agno = 23 - agno = 12 - agno = 15 - agno = 17 - agno = 24 - agno = 20 - agno = 25 - agno = 22 - agno = 27 - agno = 29 - agno = 26 - agno = 31 - agno = 30 - agno = 28 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l003 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 5 - agno = 6 - agno = 8 - agno = 4 - agno = 10 - agno = 9 - agno = 12 - agno = 14 - agno = 16 - agno = 11 - agno = 13 - agno = 19 - agno = 21 - agno = 15 - agno = 7 - agno = 17 - agno = 18 - agno = 23 - agno = 22 - agno = 20 - agno = 24 - agno = 26 - agno = 28 - agno = 30 - agno = 27 - agno = 29 - agno = 31 - agno = 25 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l013 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 6 - agno = 7 - agno = 5 - agno = 9 - agno = 12 - agno = 13 - agno = 14 - agno = 8 - agno = 15 - agno = 10 - agno = 16 - agno = 11 - agno = 17 - agno = 19 - agno = 18 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l023 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 4 - agno = 5 - agno = 3 - agno = 8 - agno = 10 - agno = 12 - agno = 9 - agno = 15 - agno = 16 - agno = 6 - agno = 13 - agno = 7 - agno = 19 - agno = 11 - agno = 20 - agno = 18 - agno = 17 - agno = 21 - agno = 14 - agno = 22 - agno = 26 - agno = 27 - agno = 30 - agno = 31 - agno = 28 - agno = 29 - agno = 23 - agno = 24 - agno = 25 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done root@Anguish-ssu-2:/iris/home/adrian/streamRT/scripts# xfs_repair /dev/s2d_a1l033 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - agno = 4 - agno = 5 - agno = 6 - agno = 7 - agno = 8 - agno = 9 - agno = 10 - agno = 11 - agno = 12 - agno = 13 - agno = 14 - agno = 15 - agno = 16 - agno = 17 - agno = 18 - agno = 19 - agno = 20 - agno = 21 - agno = 22 - agno = 23 - agno = 24 - agno = 25 - agno = 26 - agno = 27 - agno = 28 - agno = 29 - agno = 30 - agno = 31 - agno = 32 - agno = 33 - agno = 34 - agno = 35 - agno = 36 - agno = 37 - agno = 38 - agno = 39 - agno = 40 - agno = 41 - agno = 42 - agno = 43 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 3 - agno = 2 - agno = 6 - agno = 4 - agno = 5 - agno = 11 - agno = 8 - agno = 16 - agno = 7 - agno = 10 - agno = 13 - agno = 24 - agno = 23 - agno = 28 - agno = 25 - agno = 30 - agno = 32 - agno = 17 - agno = 34 - agno = 37 - agno = 12 - agno = 42 - agno = 22 - agno = 20 - agno = 14 - agno = 29 - agno = 31 - agno = 1 - agno = 26 - agno = 27 - agno = 15 - agno = 35 - agno = 21 - agno = 36 - agno = 41 - agno = 33 - agno = 9 - agno = 38 - agno = 43 - agno = 40 - agno = 39 - agno = 19 - agno = 18 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done -- Stan From BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org Fri Aug 29 13:26:19 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 1D6BF7FBF for ; Fri, 29 Aug 2014 13:26:19 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id F1BB730404E for ; Fri, 29 Aug 2014 11:26:15 -0700 (PDT) X-ASG-Debug-ID: 1409336771-04cb6c5500677db0001-NocioJ Received: from bombadil.infradead.org ([198.137.202.9]) by cuda.sgi.com with ESMTP id aRjgAZJabCK2caUD (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 11:26:11 -0700 (PDT) X-Barracuda-Envelope-From: BATV+a70b89fbbf3a21f374f9+4023+infradead.org+hch@bombadil.srs.infradead.org X-Barracuda-Apparent-Source-IP: 198.137.202.9 Received: from hch by bombadil.infradead.org with local (Exim 4.80.1 #2 (Red Hat Linux)) id 1XNQsE-0000of-Up; Fri, 29 Aug 2014 18:26:10 +0000 Date: Fri, 29 Aug 2014 11:26:10 -0700 From: Christoph Hellwig To: Dave Chinner Cc: Christoph Hellwig , xfs@oss.sgi.com Subject: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse Message-ID: <20140829182610.GA28670@infradead.org> X-ASG-Orig-Subj: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-7-git-send-email-david@fromorbit.com> <20140829003257.GF17502@infradead.org> <20140829011236.GB20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140829011236.GB20518@dastard> User-Agent: Mutt/1.5.23 (2014-03-12) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html X-Barracuda-Connect: UNKNOWN[198.137.202.9] X-Barracuda-Start-Time: 1409336771 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8960 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS On Fri, Aug 29, 2014 at 11:12:36AM +1000, Dave Chinner wrote: > > This is a large change of behavior as it doesn't hit the error > > path after the xfs_buf_iowait anymore. While I don't think that > > that path was entirely correct this version seems to be even less so > > by not releasing the buffer reference or forcing the shutdown. > > The IO is synchronous, so the previous behaviour did not release > the buffer here. But, yes, it needs to because we're not running the > io wait on it anymore. And this happens only during a shutdown, so i > don't see any need to trigger a shutdown ;) > > As it is, I think this gets properly fixed by the next patch.... Do you have any scenario that might actually exercise this path? I enabled xfs_trans_read_buf_io trace events and run xfstests as well as a few other workloads and couldn't hit it at all. And when you think of it: when would be do a trans_get_buf, then not actually updating it with data and then recurse into a trans_read_buf in the same transaction? Maybe it's just time do a bit more of an audit and put this whole code path to rest. From bfoster@redhat.com Fri Aug 29 15:29:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 8D9F67FC3 for ; Fri, 29 Aug 2014 15:29:42 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id 1C6D1AC001 for ; Fri, 29 Aug 2014 13:29:41 -0700 (PDT) X-ASG-Debug-ID: 1409344180-04cbb0548690a850001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id SnoHBmKzPzxiBjpR (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 13:29:40 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTeAO027648 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTdUj029026 for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 679AF125781; Fri, 29 Aug 2014 16:29:38 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 3/4] xfs: allow collapse to handle delalloc extents Date: Fri, 29 Aug 2014 16:29:37 -0400 X-ASG-Orig-Subj: [PATCH 3/4] xfs: allow collapse to handle delalloc extents Message-Id: <1409344178-44817-4-git-send-email-bfoster@redhat.com> In-Reply-To: <1409344178-44817-1-git-send-email-bfoster@redhat.com> References: <1409344178-44817-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409344180 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The xfs_bmap_shift_extents() mechanism currently requires any post-EOF delalloc blocks to be explicitly trimmed before it can proceed to avoid hitting delalloc extents during the extent shift sequence. This is because the implementation doesn't account for delalloc extents and expects consistency between the in-core extent list and what is on disk for bmapbt mappings. E.g., it will attempt to look up delalloc extents on disk and fail. Since delayed allocation extents have not been written to disk, no on-disk changes are required to shift such extents. Update xfs_bmap_shift_extents() to check for delalloc extents. If found, simply update the start offset of the record and move on. This should only occur for delalloc blocks that do not have data (e.g., post-eof preallocation). Such blocks are currently trimmed off by the truncate that occurs after the extent shift, so we make no attempt to merge delalloc extents. This eliminates the need for an eofblocks trim prior to collapse. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 449a016..32598cb 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5417,6 +5417,11 @@ xfs_bmap_shift_extents_can_merge( startoff = got->br_startoff - shift; + /* do not merge if either extent is delalloc */ + if (isnullstartblock(left->br_startblock) || + isnullstartblock(got->br_startblock)) + return false; + /* * The extent, once shifted, must be adjacent in-file and on-disk with * the preceding extent. @@ -5554,6 +5559,7 @@ xfs_bmap_shift_extents( int whichfork = XFS_DATA_FORK; int logflags = 0; int total_extents; + bool delalloc; if (unlikely(XFS_TEST_ERROR( (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS && @@ -5618,6 +5624,7 @@ xfs_bmap_shift_extents( total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); while (nexts++ < num_exts && current_ext < total_extents) { startoff = got.br_startoff - offset_shift_fsb; + delalloc = isnullstartblock(got.br_startblock); /* grab the left extent and check for a potential merge */ if (current_ext > 0) { @@ -5649,9 +5656,14 @@ xfs_bmap_shift_extents( /* * We didn't merge the extent so do the shift. Update the start - * offset in the in-core extent and btree, if necessary. + * offset in the in-core extent. If the extent is delalloc, + * there's nothing else to do. Otherwise, update the extent + * on-disk. */ xfs_bmbt_set_startoff(gotp, startoff); + if (delalloc) + goto next; + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_lookup_eq(cur, got.br_startoff, -- 1.8.3.1 From bfoster@redhat.com Fri Aug 29 15:29:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 904B67FC4 for ; Fri, 29 Aug 2014 15:29:42 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay1.corp.sgi.com (Postfix) with ESMTP id 6EDFA8F8050 for ; Fri, 29 Aug 2014 13:29:42 -0700 (PDT) X-ASG-Debug-ID: 1409344180-04cbb0548890a860001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 3ObCooCi2cfSKpHP (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 13:29:41 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTe4x015087 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTd5E010223 for ; Fri, 29 Aug 2014 16:29:39 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 5CD5F125780; Fri, 29 Aug 2014 16:29:38 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions Date: Fri, 29 Aug 2014 16:29:36 -0400 X-ASG-Orig-Subj: [PATCH 2/4] xfs: refactor xfs_bmap_shift_extents() into multiple functions Message-Id: <1409344178-44817-3-git-send-email-bfoster@redhat.com> In-Reply-To: <1409344178-44817-1-git-send-email-bfoster@redhat.com> References: <1409344178-44817-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409344181 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The extent shift mechanism in xfs_bmap_shift_extents() is complicated and handles several different, non-deterministic scenarios. These include extent shifts, extent merges and potential btree updates in either of the former scenarios. Refactor the code to be more linear and readable. The loop logic in xfs_bmap_shift_extents() and some initial error checking is adjusted slightly. The associated btree lookup and update/delete operations are condensed into single blocks of code. This reduces the number of btree-specific blocks and facilitates the separation of the merge operation into a new xfs_bmap_shift_extents_merge() helper. The merge check is also separated into an inline. This is a code refactor only. The behavior of extent shift and collapse range is not modified. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 243 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 168 insertions(+), 75 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 4b3f1b9..449a016 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5404,6 +5404,120 @@ error0: } /* + * Determine whether an extent shift can be accomplished by a merge with the + * extent that precedes the target hole of the shift. + */ +static inline bool +xfs_bmap_shift_extents_can_merge( + struct xfs_bmbt_irec *left, /* preceding extent */ + struct xfs_bmbt_irec *got, /* current extent to shift */ + xfs_fileoff_t shift) /* shift fsb */ +{ + xfs_fileoff_t startoff; + + startoff = got->br_startoff - shift; + + /* + * The extent, once shifted, must be adjacent in-file and on-disk with + * the preceding extent. + */ + if ((left->br_startoff + left->br_blockcount != startoff) || + (left->br_startblock + left->br_blockcount != got->br_startblock) || + (left->br_state != got->br_state) || + (left->br_blockcount + got->br_blockcount > MAXEXTLEN)) + return false; + + return true; +} + +/* + * An extent shift adjusts the file offset of an extent to fill a preceding hole + * in the file. If an extent shift would result in the extent being fully + * adjacent to the extent that currently precedes the hole, we can merge with + * the preceding extent rather than do the shift. + * + * This function assumes the caller has verified a shift-by-merge is possible + * with the provided extents via xfs_bmap_shift_extents_can_merge(). + */ +static int +xfs_bmap_shift_extents_merge( + struct xfs_inode *ip, + int whichfork, + xfs_fileoff_t shift, /* shift fsb */ + int current_ext, /* idx of gotp */ + struct xfs_bmbt_rec_host *gotp, /* extent to shift */ + struct xfs_bmbt_rec_host *leftp, /* preceding extent */ + struct xfs_btree_cur *cur, + int *logflags) /* output */ +{ + struct xfs_ifork *ifp; + struct xfs_bmbt_irec got; + struct xfs_bmbt_irec left; + xfs_filblks_t blockcount; + int error, i; + + ifp = XFS_IFORK_PTR(ip, whichfork); + xfs_bmbt_get_all(gotp, &got); + xfs_bmbt_get_all(leftp, &left); + blockcount = left.br_blockcount + got.br_blockcount; + + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); + ASSERT(xfs_bmap_shift_extents_can_merge(&left, &got, shift)); + + /* + * Merge the in-core extents. Note that the host record pointers and + * current_ext index are invalid once the extent has been removed via + * xfs_iext_remove(). + */ + xfs_bmbt_set_blockcount(leftp, blockcount); + xfs_iext_remove(ip, current_ext, 1, 0); + + /* + * Update the on-disk extent count, the btree if necessary and log the + * inode. + */ + XFS_IFORK_NEXT_SET(ip, whichfork, + XFS_IFORK_NEXTENTS(ip, whichfork) - 1); + *logflags |= XFS_ILOG_CORE; + if (cur) { + /* lookup and remove the extent to merge */ + error = xfs_bmbt_lookup_eq(cur, got.br_startoff, + got.br_startblock, got.br_blockcount, &i); + if (error) + goto error; + XFS_WANT_CORRUPTED_GOTO(i == 1, error); + + error = xfs_btree_delete(cur, &i); + if (error) + goto error; + XFS_WANT_CORRUPTED_GOTO(i == 1, error); + + /* lookup and update size of the previous extent */ + error = xfs_bmbt_lookup_eq(cur, left.br_startoff, + left.br_startblock, left.br_blockcount, &i); + if (error) + goto error; + XFS_WANT_CORRUPTED_GOTO(i == 1, error); + + left.br_blockcount = blockcount; + + error = xfs_bmbt_update(cur, left.br_startoff, + left.br_startblock, left.br_blockcount, + left.br_state); + if (error) + goto error; + } else { + *logflags |= XFS_ILOG_DEXT; + } + + return 0; + +error: + return error; +} + +/* * Shift extent records to the left to cover a hole. * * The maximum number of extents to be shifted in a single operation is @@ -5427,6 +5541,7 @@ xfs_bmap_shift_extents( { struct xfs_btree_cur *cur = NULL; struct xfs_bmbt_rec_host *gotp; + struct xfs_bmbt_rec_host *leftp; struct xfs_bmbt_irec got; struct xfs_bmbt_irec left; struct xfs_mount *mp = ip->i_mount; @@ -5438,7 +5553,6 @@ xfs_bmap_shift_extents( int i; int whichfork = XFS_DATA_FORK; int logflags = 0; - xfs_filblks_t blockcount = 0; int total_extents; if (unlikely(XFS_TEST_ERROR( @@ -5464,6 +5578,13 @@ xfs_bmap_shift_extents( return error; } + if (ifp->if_flags & XFS_IFBROOT) { + cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); + cur->bc_private.b.firstblock = *firstblock; + cur->bc_private.b.flist = flist; + cur->bc_private.b.flags = 0; + } + /* * Look up the extent index for the fsb where we start shifting. We can * henceforth iterate with current_ext as extent list changes are locked @@ -5476,14 +5597,17 @@ xfs_bmap_shift_extents( gotp = xfs_iext_bno_to_ext(ifp, start_fsb, ¤t_ext); if (!gotp) { *done = 1; - return 0; + goto del_cursor; } + xfs_bmbt_get_all(gotp, &got); - if (ifp->if_flags & XFS_IFBROOT) { - cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork); - cur->bc_private.b.firstblock = *firstblock; - cur->bc_private.b.flist = flist; - cur->bc_private.b.flags = 0; + /* + * If the first extent is shifted, offset_shift_fsb cannot be larger + * than the starting offset of the first extent. + */ + if (current_ext == 0 && got.br_startoff < offset_shift_fsb) { + error = -EINVAL; + goto del_cursor; } /* @@ -5493,30 +5617,42 @@ xfs_bmap_shift_extents( */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); while (nexts++ < num_exts && current_ext < total_extents) { - - gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; - /* - * Before shifting extent into hole, make sure that the hole is - * large enough to accommodate the shift. - */ + /* grab the left extent and check for a potential merge */ if (current_ext > 0) { - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), - &left); - if (startoff < left.br_startoff + left.br_blockcount) + leftp = xfs_iext_get_ext(ifp, current_ext - 1); + xfs_bmbt_get_all(leftp, &left); + + /* make sure hole is large enough for shift */ + if (startoff < left.br_startoff + left.br_blockcount) { error = -EINVAL; - } else if (offset_shift_fsb > got.br_startoff) { - /* - * When first extent is shifted, offset_shift_fsb should - * be less than the stating offset of the first extent. - */ - error = -EINVAL; + goto del_cursor; + } + + if (xfs_bmap_shift_extents_can_merge(&left, &got, + offset_shift_fsb)) { + error = xfs_bmap_shift_extents_merge(ip, whichfork, + offset_shift_fsb, current_ext, gotp, + leftp, cur, &logflags); + if (error) + goto del_cursor; + + /* + * The extent was merged so adjust the extent + * index and move onto the next. + */ + current_ext--; + goto next; + } } - if (error) - goto del_cursor; + /* + * We didn't merge the extent so do the shift. Update the start + * offset in the in-core extent and btree, if necessary. + */ + xfs_bmbt_set_startoff(gotp, startoff); + logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_bmbt_lookup_eq(cur, got.br_startoff, got.br_startblock, @@ -5525,53 +5661,8 @@ xfs_bmap_shift_extents( if (error) goto del_cursor; XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } - - /* Check if we can merge 2 adjacent extents */ - if (current_ext && - left.br_startoff + left.br_blockcount == startoff && - left.br_startblock + left.br_blockcount == - got.br_startblock && - left.br_state == got.br_state && - left.br_blockcount + got.br_blockcount <= MAXEXTLEN) { - blockcount = left.br_blockcount + - got.br_blockcount; - xfs_iext_remove(ip, current_ext, 1, 0); - logflags |= XFS_ILOG_CORE; - if (cur) { - error = xfs_btree_delete(cur, &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } else { - logflags |= XFS_ILOG_DEXT; - } - XFS_IFORK_NEXT_SET(ip, whichfork, - XFS_IFORK_NEXTENTS(ip, whichfork) - 1); - gotp = xfs_iext_get_ext(ifp, --current_ext); - xfs_bmbt_get_all(gotp, &got); - - /* Make cursor point to the extent we will update */ - if (cur) { - error = xfs_bmbt_lookup_eq(cur, got.br_startoff, - got.br_startblock, - got.br_blockcount, - &i); - if (error) - goto del_cursor; - XFS_WANT_CORRUPTED_GOTO(i == 1, del_cursor); - } - xfs_bmbt_set_blockcount(gotp, blockcount); - got.br_blockcount = blockcount; - } else { - /* We have to update the startoff */ - xfs_bmbt_set_startoff(gotp, startoff); got.br_startoff = startoff; - } - - logflags |= XFS_ILOG_CORE; - if (cur) { error = xfs_bmbt_update(cur, got.br_startoff, got.br_startblock, got.br_blockcount, @@ -5582,18 +5673,20 @@ xfs_bmap_shift_extents( logflags |= XFS_ILOG_DEXT; } - current_ext++; +next: + /* update total extent count and grab the next record */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); + if (++current_ext >= total_extents) + break; + gotp = xfs_iext_get_ext(ifp, current_ext); + xfs_bmbt_get_all(gotp, &got); } /* Check if we are done */ if (current_ext == total_extents) *done = 1; - else if (next_fsb) { - gotp = xfs_iext_get_ext(ifp, current_ext); - xfs_bmbt_get_all(gotp, &got); + else if (next_fsb) *next_fsb = got.br_startoff; - } del_cursor: if (cur) -- 1.8.3.1 From bfoster@redhat.com Fri Aug 29 15:29:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id C2E517FCD for ; Fri, 29 Aug 2014 15:29:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay2.corp.sgi.com (Postfix) with ESMTP id B1AA630406B for ; Fri, 29 Aug 2014 13:29:44 -0700 (PDT) X-ASG-Debug-ID: 1409344180-04cb6c54fe67dee0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id BVyjX0vYkTOqr2D9 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 13:29:40 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTekr013508 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTdvs010221 for ; Fri, 29 Aug 2014 16:29:39 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 3B70412577F; Fri, 29 Aug 2014 16:29:38 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [RFC PATCH 0/4] clean up collapse range and handle post-eof delalloc Date: Fri, 29 Aug 2014 16:29:34 -0400 X-ASG-Orig-Subj: [RFC PATCH 0/4] clean up collapse range and handle post-eof delalloc Message-Id: <1409344178-44817-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409344180 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 Here's a drop of what I'm testing over the weekend. It passes some quick tests, but only lightly tested so far. My biggest question at this point is whether there is any risk to the shift of the post-eof extent if the subsequent truncate happens to fail. If it's not worth dealing with that, we could just drop patch 3 and leave the eofblocks trim permanently. In fact, it might even be a good idea to go back to the original [start,-1] writeback in collapse range given that the free file space helper could change at some point to only write and punch out the range being freed... and then we're left shifting a bunch of extents after the freed range that could have dirty data in pagecache, which sounds bad. Thoughts? Brian Brian Foster (4): xfs: track collapse via file offset rather than extent index xfs: refactor xfs_bmap_shift_extents() into multiple functions xfs: allow collapse to handle delalloc extents xfs: remove file writeback and eofblocks trim from collapse range fs/xfs/libxfs/xfs_bmap.c | 302 ++++++++++++++++++++++++++++++++--------------- fs/xfs/libxfs/xfs_bmap.h | 7 +- fs/xfs/xfs_bmap_util.c | 32 +---- 3 files changed, 214 insertions(+), 127 deletions(-) -- 1.8.3.1 From bfoster@redhat.com Fri Aug 29 15:29:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id E30687FCE for ; Fri, 29 Aug 2014 15:29:44 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 809D7AC001 for ; Fri, 29 Aug 2014 13:29:41 -0700 (PDT) X-ASG-Debug-ID: 1409344180-04bdf0109a613f50001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 4WrTAFmWdovAjFb2 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 13:29:40 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTeJg016533 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTdsY025621 for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 74116125782; Fri, 29 Aug 2014 16:29:38 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 4/4] xfs: remove file writeback and eofblocks trim from collapse range Date: Fri, 29 Aug 2014 16:29:38 -0400 X-ASG-Orig-Subj: [PATCH 4/4] xfs: remove file writeback and eofblocks trim from collapse range Message-Id: <1409344178-44817-5-git-send-email-bfoster@redhat.com> In-Reply-To: <1409344178-44817-1-git-send-email-bfoster@redhat.com> References: <1409344178-44817-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409344180 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The full writeback and eofblocks trim operations executed prior to collapse range are temporary hacks to avoid problems in the extent shift implementation. The writeback prevents the in-core extent count from changing due to extent conversions in parts of the file prior to the collapse target. The eofblocks trim prevents collapse failure due to attempts to look up delalloc extents on disk for bmapbt mappings. The full writeback is no longer necessary because the extent shift is now file offset based. Each time the ilock is dropped and reacquired, we look up the current extent index based on the file offset where the previous shift left off. The eofblocks trim is no longer required because the extent shift mechanism knows how to shift delalloc extents. Remove the writeback and eofblocks trim from xfs_collapse_file_space(). Signed-off-by: Brian Foster --- fs/xfs/xfs_bmap_util.c | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 1e96d77..c9d16bd 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1470,26 +1470,6 @@ xfs_collapse_file_space( next_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); - /* - * Writeback the entire file and force remove any post-eof blocks. The - * writeback prevents changes to the extent list via concurrent - * writeback and the eofblocks trim prevents the extent shift algorithm - * from running into a post-eof delalloc extent. - * - * XXX: This is a temporary fix until the extent shift loop below is - * converted to use offsets and lookups within the ILOCK rather than - * carrying around the index into the extent list for the next - * iteration. - */ - error = filemap_write_and_wait(VFS_I(ip)->i_mapping); - if (error) - return error; - if (xfs_can_free_eofblocks(ip, true)) { - error = xfs_free_eofblocks(mp, ip, false); - if (error) - return error; - } - error = xfs_free_file_space(ip, offset, len); if (error) return error; -- 1.8.3.1 From bfoster@redhat.com Fri Aug 29 15:29:45 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 5B05F7FCD for ; Fri, 29 Aug 2014 15:29:45 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 3B11F8F8033 for ; Fri, 29 Aug 2014 13:29:42 -0700 (PDT) X-ASG-Debug-ID: 1409344180-04cb6c54fd67dee0001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 37HiFTUaSwYVvDi0 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Fri, 29 Aug 2014 13:29:41 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTepL013514 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 29 Aug 2014 16:29:40 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7TKTd5b029024 for ; Fri, 29 Aug 2014 16:29:39 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 4E48112577D; Fri, 29 Aug 2014 16:29:38 -0400 (EDT) From: Brian Foster To: xfs@oss.sgi.com Subject: [PATCH 1/4] xfs: track collapse via file offset rather than extent index Date: Fri, 29 Aug 2014 16:29:35 -0400 X-ASG-Orig-Subj: [PATCH 1/4] xfs: track collapse via file offset rather than extent index Message-Id: <1409344178-44817-2-git-send-email-bfoster@redhat.com> In-Reply-To: <1409344178-44817-1-git-send-email-bfoster@redhat.com> References: <1409344178-44817-1-git-send-email-bfoster@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409344181 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 The collapse range implementation uses a transaction per extent shift. The progress of the overall operation is tracked via the current extent index of the in-core extent list. This is racy because the ilock must be dropped and reacquired for each transaction according to locking and log reservation rules. Therefore, writeback to prior regions of the file is possible and can change the extent count. This changes the extent to which the current index refers and causes the collapse to fail mid operation. To avoid this problem, the entire file is currently written back before the collapse operation starts. To eliminate the need to flush the entire file, use the file offset (fsb) to track the progress of the overall extent shift operation rather than the extent index. Modify xfs_bmap_shift_extents() to unconditionally convert the start_fsb parameter to an extent index and return the file offset of the extent where the shift left off, if further extents exist. The bulk of ths function can remain based on extent index as ilock is held by the caller. xfs_collapse_file_space() now uses the fsb output as the starting point for the subsequent shift. Signed-off-by: Brian Foster --- fs/xfs/libxfs/xfs_bmap.c | 85 +++++++++++++++++++++++++----------------------- fs/xfs/libxfs/xfs_bmap.h | 7 ++-- fs/xfs/xfs_bmap_util.c | 12 +++---- 3 files changed, 53 insertions(+), 51 deletions(-) diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 86df952..4b3f1b9 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -5406,20 +5406,21 @@ error0: /* * Shift extent records to the left to cover a hole. * - * The maximum number of extents to be shifted in a single operation - * is @num_exts, and @current_ext keeps track of the current extent - * index we have shifted. @offset_shift_fsb is the length by which each - * extent is shifted. If there is no hole to shift the extents - * into, this will be considered invalid operation and we abort immediately. + * The maximum number of extents to be shifted in a single operation is + * @num_exts. @start_fsb specifies the file offset to start the shift and the + * file offset where we've left off is returned in @next_fsb. @offset_shift_fsb + * is the length by which each extent is shifted. If there is no hole to shift + * the extents into, this will be considered invalid operation and we abort + * immediately. */ int xfs_bmap_shift_extents( struct xfs_trans *tp, struct xfs_inode *ip, - int *done, xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, - xfs_extnum_t *current_ext, + int *done, + xfs_fileoff_t *next_fsb, xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, int num_exts) @@ -5431,6 +5432,7 @@ xfs_bmap_shift_extents( struct xfs_mount *mp = ip->i_mount; struct xfs_ifork *ifp; xfs_extnum_t nexts = 0; + xfs_extnum_t current_ext; xfs_fileoff_t startoff; int error = 0; int i; @@ -5451,7 +5453,8 @@ xfs_bmap_shift_extents( if (XFS_FORCED_SHUTDOWN(mp)) return -EIO; - ASSERT(current_ext != NULL); + ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); + ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); ifp = XFS_IFORK_PTR(ip, whichfork); if (!(ifp->if_flags & XFS_IFEXTENTS)) { @@ -5462,20 +5465,18 @@ xfs_bmap_shift_extents( } /* - * If *current_ext is 0, we would need to lookup the extent - * from where we would start shifting and store it in gotp. + * Look up the extent index for the fsb where we start shifting. We can + * henceforth iterate with current_ext as extent list changes are locked + * out via ilock. + * + * gotp can be null in 2 cases: 1) if there are no extents or 2) + * start_fsb lies in a hole beyond which there are no extents. Either + * way, we are done. */ - if (!*current_ext) { - gotp = xfs_iext_bno_to_ext(ifp, start_fsb, current_ext); - /* - * gotp can be null in 2 cases: 1) if there are no extents - * or 2) start_fsb lies in a hole beyond which there are - * no extents. Either way, we are done. - */ - if (!gotp) { - *done = 1; - return 0; - } + gotp = xfs_iext_bno_to_ext(ifp, start_fsb, ¤t_ext); + if (!gotp) { + *done = 1; + return 0; } if (ifp->if_flags & XFS_IFBROOT) { @@ -5487,36 +5488,32 @@ xfs_bmap_shift_extents( /* * There may be delalloc extents in the data fork before the range we - * are collapsing out, so we cannot - * use the count of real extents here. Instead we have to calculate it - * from the incore fork. + * are collapsing out, so we cannot use the count of real extents here. + * Instead we have to calculate it from the incore fork. */ total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); - while (nexts++ < num_exts && *current_ext < total_extents) { + while (nexts++ < num_exts && current_ext < total_extents) { - gotp = xfs_iext_get_ext(ifp, *current_ext); + gotp = xfs_iext_get_ext(ifp, current_ext); xfs_bmbt_get_all(gotp, &got); startoff = got.br_startoff - offset_shift_fsb; /* - * Before shifting extent into hole, make sure that the hole - * is large enough to accomodate the shift. + * Before shifting extent into hole, make sure that the hole is + * large enough to accommodate the shift. */ - if (*current_ext) { - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, - *current_ext - 1), &left); - + if (current_ext > 0) { + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, current_ext - 1), + &left); if (startoff < left.br_startoff + left.br_blockcount) error = -EINVAL; } else if (offset_shift_fsb > got.br_startoff) { /* - * When first extent is shifted, offset_shift_fsb - * should be less than the stating offset of - * the first extent. + * When first extent is shifted, offset_shift_fsb should + * be less than the stating offset of the first extent. */ error = -EINVAL; } - if (error) goto del_cursor; @@ -5531,7 +5528,7 @@ xfs_bmap_shift_extents( } /* Check if we can merge 2 adjacent extents */ - if (*current_ext && + if (current_ext && left.br_startoff + left.br_blockcount == startoff && left.br_startblock + left.br_blockcount == got.br_startblock && @@ -5539,7 +5536,7 @@ xfs_bmap_shift_extents( left.br_blockcount + got.br_blockcount <= MAXEXTLEN) { blockcount = left.br_blockcount + got.br_blockcount; - xfs_iext_remove(ip, *current_ext, 1, 0); + xfs_iext_remove(ip, current_ext, 1, 0); logflags |= XFS_ILOG_CORE; if (cur) { error = xfs_btree_delete(cur, &i); @@ -5551,7 +5548,7 @@ xfs_bmap_shift_extents( } XFS_IFORK_NEXT_SET(ip, whichfork, XFS_IFORK_NEXTENTS(ip, whichfork) - 1); - gotp = xfs_iext_get_ext(ifp, --*current_ext); + gotp = xfs_iext_get_ext(ifp, --current_ext); xfs_bmbt_get_all(gotp, &got); /* Make cursor point to the extent we will update */ @@ -5585,13 +5582,18 @@ xfs_bmap_shift_extents( logflags |= XFS_ILOG_DEXT; } - (*current_ext)++; + current_ext++; total_extents = ifp->if_bytes / sizeof(xfs_bmbt_rec_t); } /* Check if we are done */ - if (*current_ext == total_extents) + if (current_ext == total_extents) *done = 1; + else if (next_fsb) { + gotp = xfs_iext_get_ext(ifp, current_ext); + xfs_bmbt_get_all(gotp, &got); + *next_fsb = got.br_startoff; + } del_cursor: if (cur) @@ -5600,5 +5602,6 @@ del_cursor: if (logflags) xfs_trans_log_inode(tp, ip, logflags); + return error; } diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h index b879ca5..44db6db 100644 --- a/fs/xfs/libxfs/xfs_bmap.h +++ b/fs/xfs/libxfs/xfs_bmap.h @@ -178,9 +178,8 @@ int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, xfs_extnum_t num); uint xfs_default_attroffset(struct xfs_inode *ip); int xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip, - int *done, xfs_fileoff_t start_fsb, - xfs_fileoff_t offset_shift_fsb, xfs_extnum_t *current_ext, - xfs_fsblock_t *firstblock, struct xfs_bmap_free *flist, - int num_exts); + xfs_fileoff_t start_fsb, xfs_fileoff_t offset_shift_fsb, + int *done, xfs_fileoff_t *next_fsb, xfs_fsblock_t *firstblock, + struct xfs_bmap_free *flist, int num_exts); #endif /* __XFS_BMAP_H__ */ diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index 1707980..1e96d77 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1456,18 +1456,18 @@ xfs_collapse_file_space( struct xfs_mount *mp = ip->i_mount; struct xfs_trans *tp; int error; - xfs_extnum_t current_ext = 0; struct xfs_bmap_free free_list; xfs_fsblock_t first_block; int committed; xfs_fileoff_t start_fsb; + xfs_fileoff_t next_fsb; xfs_fileoff_t shift_fsb; ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); trace_xfs_collapse_file_space(ip); - start_fsb = XFS_B_TO_FSB(mp, offset + len); + next_fsb = XFS_B_TO_FSB(mp, offset + len); shift_fsb = XFS_B_TO_FSB(mp, len); /* @@ -1525,10 +1525,10 @@ xfs_collapse_file_space( * We are using the write transaction in which max 2 bmbt * updates are allowed */ - error = xfs_bmap_shift_extents(tp, ip, &done, start_fsb, - shift_fsb, ¤t_ext, - &first_block, &free_list, - XFS_BMAP_MAX_SHIFT_EXTENTS); + start_fsb = next_fsb; + error = xfs_bmap_shift_extents(tp, ip, start_fsb, shift_fsb, + &done, &next_fsb, &first_block, &free_list, + XFS_BMAP_MAX_SHIFT_EXTENTS); if (error) goto out; -- 1.8.3.1 From david@fromorbit.com Fri Aug 29 18:45:15 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 758C47FA5 for ; Fri, 29 Aug 2014 18:45:15 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay3.corp.sgi.com (Postfix) with ESMTP id E8DF6AC006 for ; Fri, 29 Aug 2014 16:45:11 -0700 (PDT) X-ASG-Debug-ID: 1409355908-04cbb05487913ee0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id O77ooXY8HEBXBY4U for ; Fri, 29 Aug 2014 16:45:09 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkwRALIPAVR5LDJ8PGdsb2JhbABbgw2BKoIshQenVgEBAQEGmj6FbwGBEhcFAQEBATg2hAMBAQQBMgEjIwULCAMYCSUPBSUDBxoTG4gfB70FARcYhWSEA4UESQeDL4EdBZxbmRErL4EHgUgBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 30 Aug 2014 09:15:07 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNVqr-0005JB-3S; Sat, 30 Aug 2014 09:45:05 +1000 Date: Sat, 30 Aug 2014 09:45:05 +1000 From: Dave Chinner To: Greg Freemyer Cc: Stefan Ring , Xfs , weber@zbfmail.de Subject: Re: mount options question Message-ID: <20140829234505.GE20518@dastard> X-ASG-Orig-Subj: Re: mount options question References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> <20140827230732.GN20518@dastard> <20140829083738.GD20518@dastard> <6306cfa5-457d-4794-8fc0-1768f7f1deec@email.android.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <6306cfa5-457d-4794-8fc0-1768f7f1deec@email.android.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1409355909 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8969 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 29, 2014 at 07:26:59AM -0400, Greg Freemyer wrote: > > > On August 29, 2014 4:37:38 AM EDT, Dave Chinner wrote: > >On Fri, Aug 29, 2014 at 08:31:43AM +0200, Stefan Ring wrote: > >> On Thu, Aug 28, 2014 at 1:07 AM, Dave Chinner > >wrote: > >> > On Wed, Aug 27, 2014 at 12:14:21PM +0200, Marko Weber|8000 wrote: > >> >> > >> >> sorry dave and all other, > >> >> > >> >> can you guys recommend me the most stable / best mount options for > >> >> my new server with ssd´s and XFS filesystem? > >> >> > >> >> at moment i would set: > >defaults,nobarrier,discard,logbsize=256k,noikeep > >> >> or is just "default" the best solution and xfs detect itself whats > >best. > >> >> > >> >> can you guide me a bit? > >> >> > >> >> as eleavtor i set elevator=noop > >> >> > >> >> i setup disks with linux softraid raid1. On top of the raid is LVM > >> >> (for some data partations). > >> >> > >> >> > >> >> would be nice to hear some tipps from you > >> > > >> > Unless you have specific requirements or have the knowledge to > >> > understand how the different options affect behaviour, then just > >use > >> > the defaults. > >> > >> Mostly agreed, but using "discard" would be a no-brainer for me. I > >> suppose XFS does not automatically switch it on for non-rotational > >> storage. > > > >Yup, you're not using your brain. :P > > > >mount -o discard *sucks* on so many levels it is not funny. I don't > >recommend that anybody *ever* use it, on XFS, ext4 or btrfs. Just > >use fstrim if you ever need to clean up a SSD. > > In particular trim is a synchronous command in many SSDs, I don't > know about the impact on the kernel block stack. blkdev_issue_discard() is synchronous as well, which is a big problem for something that needs to iterate (potentially) thousands of regions for discard when a journal checkpoint completes.... > For the SSD > itself that means the SSDs basically flush their write cache on > every trim call. Oh, it's worse than that, usually. TRIM is one of the slowest operations you can run on many drives, so it can take hundreds of milliseconds to execute.... > I often tell people to do performance testing with and without it > and report back to me if they see no degradation caused by -o > discard. To date no one has ever reported back. I think -o > discard should have never been introduced and certainly not 5 > years ago. It was introduced into XFS as a checkbox feature. We resisted as long as we could, but too many people were shouting at us that we needed realtime discard because ext4 and btrfs had it. Of course, all those people shouting for it realised that we were right in that it sucked the moment they tried to use it and found that performance was woeful. Not to mention that SSD trim implementations were so bad that they caused random data corruption by trimming the wrong regions, drives would simply hang randomly and in a couple of cases too many trims too fast would brick them... So, yeah, it was implement because lots of people demanded it, not because it was a good idea. > In theory, SSDs that handle trim as a asynchronous > command are now available, but I don't know any specifics. Requires SATA 3.1 for the queued TRIM, and I'm not sure that there is any hardware out there that uses this end-to-end yet. And the block layer can't make use of it yet, either... > In any case, fstrim works for almost all workloads and doesn't > have the potential continuous negative impact of -o discard. Precisely my point - you just gave some more detail. :) Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 29 18:55:46 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 8917C7FAD for ; Fri, 29 Aug 2014 18:55:46 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id 5B2C2304066 for ; Fri, 29 Aug 2014 16:55:46 -0700 (PDT) X-ASG-Debug-ID: 1409356540-04bdf010a161dbc0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id Sps1PqFmVaENtIse for ; Fri, 29 Aug 2014 16:55:40 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkwRAC4SAVR5LDJ8PGdsb2JhbABRCoMNgSqCLIUHp1YBAQEBBpo+hW8BgRIXBQEBAQE4NoQDAQEBAwE6HCMFCwgDGAklDwUlAwcaE4g6B70BARcYhWSIdAUOSQeDL4EdBZxbmRErL4EHgUgBAQE Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 30 Aug 2014 09:25:39 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNW14-0005KI-Ie; Sat, 30 Aug 2014 09:55:38 +1000 Date: Sat, 30 Aug 2014 09:55:38 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140829235538.GF20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1409356540 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8970 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e On Fri, Aug 29, 2014 at 11:38:16AM -0500, Stan Hoeppner wrote: > On Fri, 29 Aug 2014 09:08:17 +1000, Dave Chinner > wrote: > > On Thu, Aug 28, 2014 at 05:31:33PM -0500, Stan Hoeppner wrote: > >> On Thu, 28 Aug 2014 10:32:27 +1000, Dave Chinner > >> wrote: > >> > On Tue, Aug 26, 2014 at 12:19:43PM -0500, Stan Hoeppner wrote: > >> >> Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): > >> >> xfs_do_force_shutdown(0x8) called from line 3732 of file > >> >> fs/xfs/xfs_bmap.c. > >> >> Return address = 0xffffffffa01cc9a6 > >> > > >> > Yup, that's kinda important. That's from xfs_bmap_finish(), and > >> > freeing an extent has failed and triggered SHUTDOWN_CORRUPT_INCORE > >> > which it's found some kind of inconsistency in the free space > >> > btrees. So, likely the same problem that caused EFI recovery to fail > >> > on the other volume. > >> > > >> > Are the tests being run on newly made filesystems? If not, have > >> > these filesystems had xfs_repair run on them after a failure? If > >> > so, what is the error that is fixed? If not, does repairing the > >> > filesystem make the problem go away? > >> > >> Newly made after every error of any kind, whether app, XFS shutdown, > call > >> trace, etc. I've not attempted xfs_repair. > > > > Please do. > > Another storage crash yesterday. xfs_repair output inline below for the 7 > filesystems. I'm also pasting the dmesg output. This time there is no > oops, no call traces. The filesystems mounted fine after mounting, > replaying, and repairing. Ok, what version of xfs_repair did you use? > > The bug? The bleeding edge storage arrays being used had had a > > firmware bug in it. When the number of outstanding IOs hit the > > *array controller* command tag queue depth limit (some several > > thousand simultaneous IOs in flight) it would occasionally misdirect > > a single write IO to the *wrong lun*. i.e. it would misdirect a > > write. > > > > It was only under *extreme* loads that this would happen, and it's > > this sort of load that AIO+DIO can easily generate - you can have > > several thousand IOs in flight without too much hassle, and that > > will hit limits in the storage arrays that aren't often hit. Array > > controller CTQ depth limits are a good example of a limit that > > normal IO won't go near to stressing. > > I hadn't considered that up to this point. That is *very* insightful, and > applicable, since we are dealing with a beta storage array and firmware. > Worth mentioning is that the storage vendor has added a custom routine > which expends Herculean effort to identify full stripes before writeback. Hmmmm. Food for thought, especially as it is evident that the storage array appears to be crashing completely. At this point, I'd say the burden of finding a corruption needs to start with proving that the array is has not done something wrong. Once you know that what is on disk is exactly what the filesystem asked to be written, then you can start to isolate filesystem issues. But you need the storage to be solid and trust-worthy before going looking for filesystem problems.... > This because some of our writes for a given low rate stream are as low as > 32KB and may be 2-3 seconds apart. With a 64-128KB chunk, 768 to 1536KB > stripe width, we'd get massive RMW without this feature. Testing thus far > shows it is fairly effective, though we still get pretty serious RMW due to > the fact we're writing 350 of these small streams per array at ~72 KB/s > max, along with 2 streams at ~48 MB/s, and and 50 streams at ~1.2 MB/s. > Multiply this by 7 LUNs per controller and it becomes clear we're putting a > pretty serious load on the firmware and cache. Yup, so having the array cache do the equivalent of sequential readahead multi-stream detection for writeback would make a big difference. But not simple to do.... Cheers, Dave. -- Dave Chinner david@fromorbit.com From david@fromorbit.com Fri Aug 29 19:05:55 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 93AFA7FAF for ; Fri, 29 Aug 2014 19:05:55 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 21A17AC001 for ; Fri, 29 Aug 2014 17:05:51 -0700 (PDT) X-ASG-Debug-ID: 1409357149-04cb6c54fd6877c0001-NocioJ Received: from ipmail05.adl6.internode.on.net (ipmail05.adl6.internode.on.net [150.101.137.143]) by cuda.sgi.com with ESMTP id 4wgSd8smx6vkSpAJ for ; Fri, 29 Aug 2014 17:05:49 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.143 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkwRAF4UAVR5LDJ8PGdsb2JhbABbgw2BKoIshQenVgEBAQEGmj6FbwGBEhcFAQEBATg2hAMBAQQBOhwjBQsIAw4KCSUPBSUDBxoTiDoHvH8BFxiFZIlQB4RMBY8djT6MHoxzKy+CTwEBAQ Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail05.adl6.internode.on.net with ESMTP; 30 Aug 2014 09:35:48 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XNWAt-0005MK-NS; Sat, 30 Aug 2014 10:05:47 +1000 Date: Sat, 30 Aug 2014 10:05:47 +1000 From: Dave Chinner To: Christoph Hellwig Cc: xfs@oss.sgi.com Subject: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse Message-ID: <20140830000547.GG20518@dastard> X-ASG-Orig-Subj: Re: [PATCH 6/9] xfs: kill xfs_bioerror_relse References: <1408084747-4540-1-git-send-email-david@fromorbit.com> <1408084747-4540-7-git-send-email-david@fromorbit.com> <20140829003257.GF17502@infradead.org> <20140829011236.GB20518@dastard> <20140829182610.GA28670@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140829182610.GA28670@infradead.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail05.adl6.internode.on.net[150.101.137.143] X-Barracuda-Start-Time: 1409357149 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8969 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On Fri, Aug 29, 2014 at 11:26:10AM -0700, Christoph Hellwig wrote: > On Fri, Aug 29, 2014 at 11:12:36AM +1000, Dave Chinner wrote: > > > This is a large change of behavior as it doesn't hit the error > > > path after the xfs_buf_iowait anymore. While I don't think that > > > that path was entirely correct this version seems to be even less so > > > by not releasing the buffer reference or forcing the shutdown. > > > > The IO is synchronous, so the previous behaviour did not release > > the buffer here. But, yes, it needs to because we're not running the > > io wait on it anymore. And this happens only during a shutdown, so i > > don't see any need to trigger a shutdown ;) > > > > As it is, I think this gets properly fixed by the next patch.... > > Do you have any scenario that might actually exercise this path? I > enabled xfs_trans_read_buf_io trace events and run xfstests as well > as a few other workloads and couldn't hit it at all. And when you > think of it: when would be do a trans_get_buf, then not actually > updating it with data and then recurse into a trans_read_buf in > the same transaction? *nod*. This path has been there is the Irix days, and I suspect that it was there to handle some wierd corner case to do with async buffer reads which IIRC, could once be done through this code... > Maybe it's just time do a bit more of an audit and put this whole > code path to rest. Perhaps so. Cheers, Dave. -- Dave Chinner david@fromorbit.com From stan@hardwarefreak.com Fri Aug 29 21:56:01 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id C12367FB2 for ; Fri, 29 Aug 2014 21:56:01 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id B080F8F8037 for ; Fri, 29 Aug 2014 19:55:58 -0700 (PDT) X-ASG-Debug-ID: 1409367354-04cb6c550068de10001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id qTtvpr08kHkNU6S3 for ; Fri, 29 Aug 2014 19:55:54 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: by greer.hardwarefreak.com (Postfix, from userid 33) id EE7726C192; Fri, 29 Aug 2014 21:55:53 -0500 (CDT) To: Dave Chinner Subject: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= X-PHP-Originating-Script: 0:func.inc X-ASG-Orig-Subj: Re: storage, libaio, or XFS =?UTF-8?Q?problem=3F=20=20=33=2E=34=2E=32=36?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Fri, 29 Aug 2014 21:55:53 -0500 From: Stan Hoeppner Cc: In-Reply-To: <20140829235538.GF20518@dastard> References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> Message-ID: X-Sender: stan@hardwarefreak.com User-Agent: RoundCube Webmail/0.3.1 X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409367354 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sat, 30 Aug 2014 09:55:38 +1000, Dave Chinner wrote: > On Fri, Aug 29, 2014 at 11:38:16AM -0500, Stan Hoeppner wrote: >> On Fri, 29 Aug 2014 09:08:17 +1000, Dave Chinner >> wrote: >> > On Thu, Aug 28, 2014 at 05:31:33PM -0500, Stan Hoeppner wrote: >> >> On Thu, 28 Aug 2014 10:32:27 +1000, Dave Chinner >> >> wrote: >> >> > On Tue, Aug 26, 2014 at 12:19:43PM -0500, Stan Hoeppner wrote: >> >> >> Aug 25 23:05:39 Anguish-ssu-1 kernel: [22409.328839] XFS (sdd): >> >> >> xfs_do_force_shutdown(0x8) called from line 3732 of file >> >> >> fs/xfs/xfs_bmap.c. >> >> >> Return address = 0xffffffffa01cc9a6 >> >> > >> >> > Yup, that's kinda important. That's from xfs_bmap_finish(), and >> >> > freeing an extent has failed and triggered SHUTDOWN_CORRUPT_INCORE >> >> > which it's found some kind of inconsistency in the free space >> >> > btrees. So, likely the same problem that caused EFI recovery to fail >> >> > on the other volume. >> >> > >> >> > Are the tests being run on newly made filesystems? If not, have >> >> > these filesystems had xfs_repair run on them after a failure? If >> >> > so, what is the error that is fixed? If not, does repairing the >> >> > filesystem make the problem go away? >> >> >> >> Newly made after every error of any kind, whether app, XFS shutdown, >> call >> >> trace, etc. I've not attempted xfs_repair. >> > >> > Please do. >> >> Another storage crash yesterday. xfs_repair output inline below for the >> 7 >> filesystems. I'm also pasting the dmesg output. This time there is no >> oops, no call traces. The filesystems mounted fine after mounting, >> replaying, and repairing. > > Ok, what version of xfs_repair did you use? 3.1.4 which is a little long in the tooth. I believe they built the OS image from Squeeze 6.0. I was originally told it was Wheezy 7.0, but that turns out to have been false. >> > The bug? The bleeding edge storage arrays being used had had a >> > firmware bug in it. When the number of outstanding IOs hit the >> > *array controller* command tag queue depth limit (some several >> > thousand simultaneous IOs in flight) it would occasionally misdirect >> > a single write IO to the *wrong lun*. i.e. it would misdirect a >> > write. >> > >> > It was only under *extreme* loads that this would happen, and it's >> > this sort of load that AIO+DIO can easily generate - you can have >> > several thousand IOs in flight without too much hassle, and that >> > will hit limits in the storage arrays that aren't often hit. Array >> > controller CTQ depth limits are a good example of a limit that >> > normal IO won't go near to stressing. >> >> I hadn't considered that up to this point. That is *very* insightful, >> and >> applicable, since we are dealing with a beta storage array and firmware. >> Worth mentioning is that the storage vendor has added a custom routine >> which expends Herculean effort to identify full stripes before >> writeback. > > Hmmmm. Food for thought, especially as it is evident that the > storage array appears to be crashing completely. At this point, > I'd say the burden of finding a corruption needs to start with > proving that the array is has not done something wrong. Once you > know that what is on disk is exactly what the filesystem asked to be > written, then you can start to isolate filesystem issues. But you > need the storage to be solid and trust-worthy before going looking > for filesystem problems.... Agreed. Which is why I put storage first in the subject, AIO second, and XFS third. My initial instinct was a problem with libaio, as the crashes only surfaced writing with AIO. I'm now seeing problems with storage on both systems when not using AIO. We're supposed to receive a new firmware upload next week, so hopefully that will fix some of these issues. >> This because some of our writes for a given low rate stream are as low as >> 32KB and may be 2-3 seconds apart. With a 64-128KB chunk, 768 to 1536KB >> stripe width, we'd get massive RMW without this feature. Testing thus >> far >> shows it is fairly effective, though we still get pretty serious RMW due >> to >> the fact we're writing 350 of these small streams per array at ~72 KB/s >> max, along with 2 streams at ~48 MB/s, and and 50 streams at ~1.2 MB/s. >> Multiply this by 7 LUNs per controller and it becomes clear we're >> putting a >> pretty serious load on the firmware and cache. > > Yup, so having the array cache do the equivalent of sequential > readahead multi-stream detection for writeback would make a big > difference. But not simple to do.... Not at all, especially with only 3 GB of RAM to work with, as I'm told. Seems low for a high end controller with 4x 12G SAS ports. We're only able to achieve ~250 MB/s per array at the application due to the access pattern being essentially random, and still with a serious quantity of RMWs. Which is why we're going to test with an even smaller chunk of 32KB. I believe that's the lower bound on these controllers. For this workload 16KB or maybe even 8KB would likely be more optimal. We're also going to test with bcache and a 400 GB Intel 3700 (datacenter grade) SSD backing two LUNs. But with bcache chunk size should be far less relevant. I'm anxious to kick those tires, but it'll be a couple of weeks. Have you played with bcache yet? -- Stan From greg.freemyer@gmail.com Fri Aug 29 22:44:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9964B7FB5 for ; Fri, 29 Aug 2014 22:44:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay3.corp.sgi.com (Postfix) with ESMTP id 3672BAC001 for ; Fri, 29 Aug 2014 20:44:08 -0700 (PDT) X-ASG-Debug-ID: 1409370245-04bdf010a1626540001-NocioJ Received: from mail-we0-f169.google.com (mail-we0-f169.google.com [74.125.82.169]) by cuda.sgi.com with ESMTP id zezOANUgOV8iNfyx (version=TLSv1 cipher=RC4-SHA bits=128 verify=NO) for ; Fri, 29 Aug 2014 20:44:06 -0700 (PDT) X-Barracuda-Envelope-From: greg.freemyer@gmail.com X-Barracuda-Apparent-Source-IP: 74.125.82.169 Received: by mail-we0-f169.google.com with SMTP id k48so2968901wev.14 for ; Fri, 29 Aug 2014 20:44:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=qaDuh7uTK2RtjS+0S6AoUhoR/G+SdTaxMIcRmiOnRug=; b=zTfszGOmmdhGinrqnErqs5aWmj6R5m9Lss/ld2fsXYf4rn/qFYCgiI3oQAGaJMzte5 MoqsG5lbHuDcNLm3B0jp7VqfgcO9GecnF6637vVaBHl7kstLhO+M3qvb7ZiRy6X5VYPR XvJdicTeAXhSCiH7QVW9qrOQVv4Th92at6zqgc7znEjsguShPfT5HN6jjiKJS30b6n/T YgiI0Cvnr0GfTxtxafOmm2o3F0winGUX1DD0fokADcYseOWrKjyno2HstkJb1KRCcWO9 LC3RO1nQa37LJBuPMfny7C0qmCbKdGI2K4WWULKIORQWRNS5hEcafHIIiXEk2qdIqiNg 4hiQ== X-Received: by 10.194.58.83 with SMTP id o19mr18245236wjq.20.1409370245461; Fri, 29 Aug 2014 20:44:05 -0700 (PDT) MIME-Version: 1.0 Received: by 10.180.10.73 with HTTP; Fri, 29 Aug 2014 20:43:25 -0700 (PDT) In-Reply-To: <20140829234505.GE20518@dastard> References: <3dc9caf6f9b415f6e4c0ebac1f1626d3@zbfmail.de> <20140827230732.GN20518@dastard> <20140829083738.GD20518@dastard> <6306cfa5-457d-4794-8fc0-1768f7f1deec@email.android.com> <20140829234505.GE20518@dastard> From: Greg Freemyer Date: Fri, 29 Aug 2014 23:43:25 -0400 Message-ID: Subject: Re: mount options question To: Dave Chinner X-ASG-Orig-Subj: Re: mount options question Cc: Stefan Ring , Xfs , "Johannes B. Kernel" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Barracuda-Connect: mail-we0-f169.google.com[74.125.82.169] X-Barracuda-Start-Time: 1409370246 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=DKIM_SIGNED, DKIM_VERIFIED X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8976 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature On Fri, Aug 29, 2014 at 7:45 PM, Dave Chinner wrote: > On Fri, Aug 29, 2014 at 07:26:59AM -0400, Greg Freemyer wrote: >> >> >> On August 29, 2014 4:37:38 AM EDT, Dave Chinner wr= ote: >> >On Fri, Aug 29, 2014 at 08:31:43AM +0200, Stefan Ring wrote: >> >> On Thu, Aug 28, 2014 at 1:07 AM, Dave Chinner >> >wrote: >> >> > On Wed, Aug 27, 2014 at 12:14:21PM +0200, Marko Weber|8000 wrote: >> >> >> >> >> >> sorry dave and all other, >> >> >> >> >> >> can you guys recommend me the most stable / best mount options for >> >> >> my new server with ssd=E6=84=80 and XFS filesystem? >> >> >> >> >> >> at moment i would set: >> >defaults,nobarrier,discard,logbsize=3D256k,noikeep >> >> >> or is just "default" the best solution and xfs detect itself whats >> >best. >> >> >> >> >> >> can you guide me a bit? >> >> >> >> >> >> as eleavtor i set elevator=3Dnoop >> >> >> >> >> >> i setup disks with linux softraid raid1. On top of the raid is LVM >> >> >> (for some data partations). >> >> >> >> >> >> >> >> >> would be nice to hear some tipps from you >> >> > >> >> > Unless you have specific requirements or have the knowledge to >> >> > understand how the different options affect behaviour, then just >> >use >> >> > the defaults. >> >> >> >> Mostly agreed, but using "discard" would be a no-brainer for me. I >> >> suppose XFS does not automatically switch it on for non-rotational >> >> storage. >> > >> >Yup, you're not using your brain. :P >> > >> >mount -o discard *sucks* on so many levels it is not funny. I don't >> >recommend that anybody *ever* use it, on XFS, ext4 or btrfs. Just >> >use fstrim if you ever need to clean up a SSD. >> > >> In particular trim is a synchronous command in many SSDs, I don't >> know about the impact on the kernel block stack. > > blkdev_issue_discard() is synchronous as well, which is a big > problem for something that needs to iterate (potentially) thousands > of regions for discard when a journal checkpoint completes.... > >> For the SSD >> itself that means the SSDs basically flush their write cache on >> every trim call. > > Oh, it's worse than that, usually. TRIM is one of the slowest > operations you can run on many drives, so it can take hundreds of > milliseconds to execute.... > >> I often tell people to do performance testing with and without it >> and report back to me if they see no degradation caused by -o >> discard. To date no one has ever reported back. I think -o >> discard should have never been introduced and certainly not 5 >> years ago. > > It was introduced into XFS as a checkbox feature. We resisted as > long as we could, but too many people were shouting at us that we > needed realtime discard because ext4 and btrfs had it. Of course, > all those people shouting for it realised that we were right in that > it sucked the moment they tried to use it and found that performance > was woeful. Not to mention that SSD trim implementations were so bad > that they caused random data corruption by trimming the wrong > regions, drives would simply hang randomly and in a couple of cases > too many trims too fast would brick them... > > So, yeah, it was implement because lots of people demanded it, not > because it was a good idea. > >> In theory, SSDs that handle trim as a asynchronous >> command are now available, but I don't know any specifics. > > Requires SATA 3.1 for the queued TRIM, and I'm not sure that there > is any hardware out there that uses this end-to-end yet. And the > block layer can't make use of it yet, either... > >> In any case, fstrim works for almost all workloads and doesn't >> have the potential continuous negative impact of -o discard. > > Precisely my point - you just gave some more detail. :) > Yes, I was only attempting to elaborate on your answer, but thanks for elaborating on mine. Greg From bounce@client11.emailgun.biz Sat Aug 30 02:24:20 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DATE_IN_PAST_24_48, HTML_MESSAGE,NORMAL_HTTP_TO_IP,PLING_QUERY autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 9053D7FB7 for ; Sat, 30 Aug 2014 02:24:20 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 00DD9AC001 for ; Sat, 30 Aug 2014 00:24:16 -0700 (PDT) X-ASG-Debug-ID: 1409383452-04cb6c5500695ff0001-NocioJ Received: from server11.emailgun.biz (server11.emailgun.biz [23.239.19.58]) by cuda.sgi.com with ESMTP id INiqGAGufXZbaPaW (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 30 Aug 2014 00:24:12 -0700 (PDT) X-Barracuda-Envelope-From: bounce@client11.emailgun.biz X-Barracuda-Apparent-Source-IP: 23.239.19.58 Received: from client11 by server11.emailgun.biz with local (Exim 4.82) (envelope-from ) id 1XNd1A-0006Cl-1o for xfs@oss.sgi.com; Sat, 30 Aug 2014 07:24:12 +0000 To: xfs@oss.sgi.com Subject: Not planned holidays yet? 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--b1_e37c54b754c1d2f17eb6ac4cfceb5b82-- From samuel.granjeaud@inserm.fr Sat Aug 30 14:33:54 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id B9B6D7FBA for ; Sat, 30 Aug 2014 14:33:54 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay1.corp.sgi.com (Postfix) with ESMTP id 9CE8E8F8037 for ; Sat, 30 Aug 2014 12:33:54 -0700 (PDT) X-ASG-Debug-ID: 1409427228-04cb6c54ff6b5110001-NocioJ Received: from smtpi.inserm.fr (smtpi.inserm.fr [195.98.252.11]) by cuda.sgi.com with ESMTP id MWdYGKXfOMAF9cfR (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 30 Aug 2014 12:33:49 -0700 (PDT) X-Barracuda-Envelope-From: samuel.granjeaud@inserm.fr X-Barracuda-Apparent-Source-IP: 195.98.252.11 Received: from localhost (localhost.localdomain [127.0.0.1]) by smtpi.inserm.fr (SrvInserm) with ESMTP id 13C6016835C for ; Sat, 30 Aug 2014 21:33:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at inserm.fr Received: from smtpi.inserm.fr ([195.98.252.11]) by localhost (potentille.inserm.fr [127.0.0.1]) (amavisd-new, port 10033) with ESMTP id 7Ot9V8p9BLwa for ; Sat, 30 Aug 2014 21:33:48 +0200 (CEST) Received: from lavande.inserm.fr (lavande.inserm.fr [192.168.20.4]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by smtpi.inserm.fr (SrvInserm) with ESMTP id 00462168267 for ; Sat, 30 Aug 2014 21:33:47 +0200 (CEST) Received: from zamia1.inserm.fr (zamia1.inserm.fr [192.168.19.93]) by lavande.inserm.fr (Postfix) with ESMTP id EC0518F74D for ; Sat, 30 Aug 2014 21:33:47 +0200 (CEST) Received: from webmail.inserm.fr (localhost.localdomain [127.0.0.1]) by zamia1.inserm.fr (Postfix) with ESMTP id DFAAB27D850 for ; Sat, 30 Aug 2014 21:33:46 +0200 (CEST) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Date: Sat, 30 Aug 2014 21:33:46 +0200 From: Samuel GRANJEAUD IR/INSERM To: xfs@oss.sgi.com Subject: Re: Run out of =?UTF-8?Q?inodes=3F?= In-Reply-To: <54009603.9050404@sandeen.net> X-ASG-Orig-Subj: Re: Run out of =?UTF-8?Q?inodes=3F?= References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> <5400802C.5050005@inserm.fr> <54009603.9050404@sandeen.net> Message-ID: <8d5fff2548d35737c6cebcb1f6382e80@inserm.fr> X-Sender: samuel.granjeaud@inserm.fr User-Agent: Roundcube Webmail/0.9.5 X-Barracuda-Connect: smtpi.inserm.fr[195.98.252.11] X-Barracuda-Start-Time: 1409427229 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.10 X-Barracuda-Spam-Status: No, SCORE=0.10 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_SA085 X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.8998 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.10 BSF_SC0_SA085 Custom Rule SA085 Enabling the inode64 option has solved the problem. Final question: could some issues appear with SAMBA? # smbstatus -V Version 3.4.5 # xfs_info -V /dev/vg1_backup/backup xfs_info version 2.6.25 # uname -a Linux 2.6.26.8-1.0.11.smp.gcc3.4.x86_64 #1 SMP Sun Jan 11 02:42:55 GMT 2009 x86_64 x86_64 x86_64 GNU/Linux Thanks for your expert help. Best regards, Samuel On 29-08-2014 17:02, Eric Sandeen wrote: > > You'll want to be using the inode64 mount option for this filesystem; > I'm surprised the openfiler folks didn't do this by default. > > http://xfs.org/index.php/XFS_FAQ#Q:_What_is_the_inode64_mount_option_for.3F > > add it to fstab for this filesystem, reboot the box (or unmount/mount > the filesystem) and all should be well. > > -Eric From sandeen@sandeen.net Sat Aug 30 21:46:27 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 81CBD7F69 for ; Sat, 30 Aug 2014 21:46:27 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id 0EB03AC003 for ; Sat, 30 Aug 2014 19:46:26 -0700 (PDT) X-ASG-Debug-ID: 1409453184-04cb6c54ff6c3c40001-NocioJ Received: from sandeen.net (sandeen.net [63.231.237.45]) by cuda.sgi.com with ESMTP id JsJKNKPCtM5dHzD7 for ; Sat, 30 Aug 2014 19:46:24 -0700 (PDT) X-Barracuda-Envelope-From: sandeen@sandeen.net X-Barracuda-Apparent-Source-IP: 63.231.237.45 Received: from liberator.sandeen.net (liberator.sandeen.net [10.0.0.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id 191B7600024F; Sat, 30 Aug 2014 21:46:24 -0500 (CDT) Message-ID: <54028C7F.4040706@sandeen.net> Date: Sat, 30 Aug 2014 21:46:23 -0500 From: Eric Sandeen MIME-Version: 1.0 To: Samuel GRANJEAUD IR/INSERM , xfs@oss.sgi.com Subject: Re: Run out of inodes? References: <54005108.1020203@inserm.fr> <20140829114806.GA17610@bfoster.bfoster> <5400802C.5050005@inserm.fr> <54009603.9050404@sandeen.net> <8d5fff2548d35737c6cebcb1f6382e80@inserm.fr> X-ASG-Orig-Subj: Re: Run out of inodes? In-Reply-To: <8d5fff2548d35737c6cebcb1f6382e80@inserm.fr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Barracuda-Connect: sandeen.net[63.231.237.45] X-Barracuda-Start-Time: 1409453184 X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-BRTS-Evidence: fmeh.org X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9008 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- On 8/30/14, 2:33 PM, Samuel GRANJEAUD IR/INSERM wrote: > Enabling the inode64 option has solved the problem. > > Final question: could some issues appear with SAMBA? ah, what sort of issues? Any application which uses i.e. a 32-bit stat() interface will return -EOVERFLOW on a 64-bit inode. http://sandeen.net/wordpress/computers/the-world-wants-32-bit-inodes/ http://blog.fmeh.org/2013/05/11/does-the-world-need-32-bit-inodes/ -Eric From root@krios.tbi.univie.ac.at Sat Aug 30 23:25:11 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 0B2067F6D for ; Sat, 30 Aug 2014 23:25:11 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DF5B58F8033 for ; Sat, 30 Aug 2014 21:25:10 -0700 (PDT) X-ASG-Debug-ID: 1409459105-04bdf01097662490001-NocioJ Received: from krios.tbi.univie.ac.at (krios.tbi.univie.ac.at [131.130.44.60]) by cuda.sgi.com with ESMTP id WjZCHgLITYn8C4dQ for ; Sat, 30 Aug 2014 21:25:06 -0700 (PDT) X-Barracuda-Envelope-From: root@krios.tbi.univie.ac.at X-Barracuda-Apparent-Source-IP: 131.130.44.60 Received: by krios.tbi.univie.ac.at (Postfix) id 206225EF10; Sun, 31 Aug 2014 06:25:03 +0200 (CEST) Delivered-To: root@krios.tbi.univie.ac.at Received: by krios.tbi.univie.ac.at (Postfix, from userid 0) id 128DE5F4C2; Sun, 31 Aug 2014 06:25:03 +0200 (CEST) From: root@krios.tbi.univie.ac.at (Cron Daemon) To: root@krios.tbi.univie.ac.at Subject: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) Content-Type: text/plain; charset=UTF-8 X-ASG-Orig-Subj: Cron test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily ) X-Cron-Env: X-Cron-Env: X-Cron-Env: X-Cron-Env: Message-Id: <20140831042503.128DE5F4C2@krios.tbi.univie.ac.at> Date: Sun, 31 Aug 2014 06:25:03 +0200 (CEST) X-Barracuda-Connect: krios.tbi.univie.ac.at[131.130.44.60] X-Barracuda-Start-Time: 1409459105 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.70 X-Barracuda-Spam-Status: No, SCORE=0.70 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA_TO_FROM_ADDR_MATCH, PR0N_SUBJECT X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9011 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.20 PR0N_SUBJECT Subject has letters around special characters (pr0n) 0.50 BSF_SC0_SA_TO_FROM_ADDR_MATCH Sender Address Matches Recipient Address /etc/cron.daily/logrotate: error: error opening /home/git/gitlab/log/application.log: Permission denied error: error opening /home/git/gitlab/log/githost.log: Permission denied error: error opening /home/git/gitlab/log/production.log: Permission denied error: error opening /home/git/gitlab/log/satellites.log: Permission denied error: error opening /home/git/gitlab/log/sidekiq.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stderr.log: Permission denied error: error opening /home/git/gitlab/log/unicorn.stdout.log: Permission denied error: error opening /home/git/gitlab-shell/gitlab-shell.log: Permission denied run-parts: /etc/cron.daily/logrotate exited with return code 1 From alex@zadarastorage.com Sun Aug 31 03:50:42 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: * X-Spam-Status: No, score=1.9 required=5.0 tests=STOX_REPLY_TYPE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id CCD697F6F for ; 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[31.168.169.234]) by mx.google.com with ESMTPSA id ba3sm7666639wib.10.2014.08.31.01.50.35 for (version=TLSv1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 31 Aug 2014 01:50:36 -0700 (PDT) Message-ID: From: "Alex Lyakas" To: "Brian Foster" Cc: , "Dave Chinner" References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> <20140825142025.GA10135@bfoster.bfoster> In-Reply-To: <20140825142025.GA10135@bfoster.bfoster> Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error Date: Sun, 31 Aug 2014 11:50:52 +0300 X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3555.308 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308 X-Barracuda-Connect: mail-wg0-f46.google.com[74.125.82.46] X-Barracuda-Start-Time: 1409475037 X-Barracuda-Encrypted: RC4-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, MARKETING_SUBJECT, STOX_REPLY_TYPE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9017 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 STOX_REPLY_TYPE STOX_REPLY_TYPE 0.60 MARKETING_SUBJECT Subject contains popular marketing words 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header Hi Brian, Dave, I tested this patch on kernel 3.16, top commit: commit 19583ca584d6f574384e17fe7613dfaeadcdc4a6 Author: Linus Torvalds Date: Sun Aug 3 15:25:02 2014 -0700 Linux 3.16 and, yes, it appears to fix the issue. Trouble is that our production kernel is 3.8.13, and we cannot upgrade to mainline kernel easily. Question is whether we can expect some patch suitable for our kernel, or, since our kernel is EOL and not a long-term one, we cannot? Thanks for your help, Alex. -----Original Message----- From: Brian Foster Sent: 25 August, 2014 5:20 PM To: Alex Lyakas Cc: xfs@oss.sgi.com ; Dave Chinner Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error On Sun, Aug 24, 2014 at 12:20:20PM +0300, Alex Lyakas wrote: > Hi Brian, > > On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster wrote: > > XFS log recovery builds up an xlog_recover object as it passes through > > the log operations on the physical log. These structures are managed via > > a hash table and are allocated when a new transaction is encountered and > > freed once a commit operation for the transaction is encountered. > > > > This state machine for active transactions is implemented by a > > combination of xlog_do_recovery_pass(), which walks through the log > > buffers and xlog_recover_process_data() which processes log operations > > within each buffer. The latter function decides whether to allocate a > > new xlog_recover, add to it or commit and ultimately free it. If an > > error occurs at any point during the lifecycle of a particular > > xlog_recover, xlog_recover_process_data() frees the object and returns > > an error. > > > > xlog_recover_commit_trans() handles the final processing of the > > transaction. It submits whatever I/O is required for the transaction and > > frees xlog_recover object along with the transaction items it tracks. If > > an error occurs at the final stages of the commit operation, such as I/O > > failure, both xlog_recover_commit_trans() and > > xlog_recover_process_data() attempt to free the trans object. > > > > Modify xlog_recover_commit_trans() to only free the trans object on > > successful completion of the trans, including any I/O errors that might > > occur when recovering the log. > > > > Signed-off-by: Brian Foster > > --- > > > > Hi all, > > > > I found that the recent buffer I/O rework fixes didn't address the crash > > reproduced by the dm-flakey/log recovery test case I posted recently. I > > tracked the crash down to this, which allows the test to pass. This > > addresses the crash I saw when running the reproducer manually with the > > metadump that Alex posted as well. > > > > FWIW, I also went back and tested the xfs_buf_iowait() experiment in > > both scenarios (Alex's metadump and xfstests test) and they all > > reproduce the same crash for me. I think that either I'm still not > > reproducing the original problem, something else might have contaminated > > the original xfs_buf_iowait() test to give a false positive, or > > something else entirely is going on. > > > > Alex, > > > > If you have a chance, I think it might be interesting to see whether you > > reproduce any problems with this patch. It looks like this is a > > regression introduced by: > > > > 2a84108f xfs: free the list of recovery items on error > > > > ... but I have no idea if that's in whatever kernel you're running. > I am running kernel 3.8.13 with some changes (published at > https://github.com/zadarastorage/zadara-xfs-pushback), but this > problem also happens on pristine 3.8.13 from > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, > branch linux-stable-3.8.y. > > I do not have commit 2a84108f in this kernel. It was introduced in 3.14. > I applied your patch to 3.8.13, but it doesn't fix the issue. Same > problem happens when testing scenario that I described in > http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. > Ok, thanks. Yeah, I don't see the double free regression in the 3.8.13 stable branch. I went back to that kernel to try and confirm some things. I do reproduce the problem with your metadump as well as the test case I put together. I tested Dave's buf hold across sync I/O patch and that does indeed prevent the problem. For whatever reason, neither the test case nor your metadump reproduce the same problem on latest kernels. Instead, they reproduce this double free regression. I suspect this is what you ran into when you reproduced on a more recent kernel. If you'd like, feel free to try and verify that by running your reproducer again on a recent kernel with this patch and see if you can still reproduce a crash as with the 3.8.13 kernel. Brian > Thanks, > Alex. > > > > > Brian > > > > fs/xfs/xfs_log_recover.c | 11 ++++++++--- > > 1 file changed, 8 insertions(+), 3 deletions(-) > > > > diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > > index 176c4b3..daca9a6 100644 > > --- a/fs/xfs/xfs_log_recover.c > > +++ b/fs/xfs/xfs_log_recover.c > > @@ -3528,10 +3528,15 @@ out: > > if (!list_empty(&done_list)) > > list_splice_init(&done_list, &trans->r_itemq); > > > > - xlog_recover_free_trans(trans); > > - > > error2 = xfs_buf_delwri_submit(&buffer_list); > > - return error ? error : error2; > > + > > + if (!error) > > + error = error2; > > + /* caller frees trans on error */ > > + if (!error) > > + xlog_recover_free_trans(trans); > > + > > + return error; > > } > > > > STATIC int > > -- > > 1.8.3.1 > > From bfoster@redhat.com Sun Aug 31 16:05:26 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 6A34C7F5F for ; Sun, 31 Aug 2014 16:05:26 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 49284304032 for ; Sun, 31 Aug 2014 14:05:23 -0700 (PDT) X-ASG-Debug-ID: 1409519118-04cbb05485974e80001-NocioJ Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by cuda.sgi.com with ESMTP id 2ckeHoFxgyqRFhg2 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 31 Aug 2014 14:05:18 -0700 (PDT) X-Barracuda-Envelope-From: bfoster@redhat.com X-Barracuda-Apparent-Source-IP: 209.132.183.28 X-ASG-Whitelist: Client Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s7VL5AH6003899 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sun, 31 Aug 2014 17:05:10 -0400 Received: from bfoster.bfoster ([10.18.41.237]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7VL59wJ012812; Sun, 31 Aug 2014 17:05:09 -0400 Received: by bfoster.bfoster (Postfix, from userid 1000) id 2964A12577F; Sun, 31 Aug 2014 17:05:08 -0400 (EDT) Date: Sun, 31 Aug 2014 17:05:08 -0400 From: Brian Foster To: Alex Lyakas Cc: xfs@oss.sgi.com, Dave Chinner Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error Message-ID: <20140831210507.GA11913@bfoster.bfoster> X-ASG-Orig-Subj: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O error References: <1408648692-15957-1-git-send-email-bfoster@redhat.com> <20140825142025.GA10135@bfoster.bfoster> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Barracuda-Connect: mx1.redhat.com[209.132.183.28] X-Barracuda-Start-Time: 1409519118 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On Sun, Aug 31, 2014 at 11:50:52AM +0300, Alex Lyakas wrote: > Hi Brian, Dave, > I tested this patch on kernel 3.16, top commit: > > commit 19583ca584d6f574384e17fe7613dfaeadcdc4a6 > Author: Linus Torvalds > Date: Sun Aug 3 15:25:02 2014 -0700 > > Linux 3.16 > > and, yes, it appears to fix the issue. > Thanks. That settles that then, I think. We're reproducing different problems on the 3.8 stable kernel vs. a recent kernel using the same test case. > Trouble is that our production kernel is 3.8.13, and we cannot upgrade to > mainline kernel easily. Question is whether we can expect some patch > suitable for our kernel, or, since our kernel is EOL and not a long-term > one, we cannot? > Dave wrote a patch specifically to resolve this problem on older kernels: http://oss.sgi.com/archives/xfs/2014-08/msg00204.html Brian > Thanks for your help, > Alex. > > > -----Original Message----- From: Brian Foster > Sent: 25 August, 2014 5:20 PM > To: Alex Lyakas > Cc: xfs@oss.sgi.com ; Dave Chinner > Subject: Re: [PATCH] xfs: fix double free of trans in log recovery on I/O > error > > On Sun, Aug 24, 2014 at 12:20:20PM +0300, Alex Lyakas wrote: > >Hi Brian, > > > >On Thu, Aug 21, 2014 at 10:18 PM, Brian Foster wrote: > >> XFS log recovery builds up an xlog_recover object as it passes through > >> the log operations on the physical log. These structures are managed via > >> a hash table and are allocated when a new transaction is encountered and > >> freed once a commit operation for the transaction is encountered. > >> > >> This state machine for active transactions is implemented by a > >> combination of xlog_do_recovery_pass(), which walks through the log > >> buffers and xlog_recover_process_data() which processes log operations > >> within each buffer. The latter function decides whether to allocate a > >> new xlog_recover, add to it or commit and ultimately free it. If an > >> error occurs at any point during the lifecycle of a particular > >> xlog_recover, xlog_recover_process_data() frees the object and returns > >> an error. > >> > >> xlog_recover_commit_trans() handles the final processing of the > >> transaction. It submits whatever I/O is required for the transaction and > >> frees xlog_recover object along with the transaction items it tracks. If > >> an error occurs at the final stages of the commit operation, such as I/O > >> failure, both xlog_recover_commit_trans() and > >> xlog_recover_process_data() attempt to free the trans object. > >> > >> Modify xlog_recover_commit_trans() to only free the trans object on > >> successful completion of the trans, including any I/O errors that might > >> occur when recovering the log. > >> > >> Signed-off-by: Brian Foster > >> --- > >> > >> Hi all, > >> > >> I found that the recent buffer I/O rework fixes didn't address the crash > >> reproduced by the dm-flakey/log recovery test case I posted recently. I > >> tracked the crash down to this, which allows the test to pass. This > >> addresses the crash I saw when running the reproducer manually with the > >> metadump that Alex posted as well. > >> > >> FWIW, I also went back and tested the xfs_buf_iowait() experiment in > >> both scenarios (Alex's metadump and xfstests test) and they all > >> reproduce the same crash for me. I think that either I'm still not > >> reproducing the original problem, something else might have contaminated > >> the original xfs_buf_iowait() test to give a false positive, or > >> something else entirely is going on. > >> > >> Alex, > >> > >> If you have a chance, I think it might be interesting to see whether you > >> reproduce any problems with this patch. It looks like this is a > >> regression introduced by: > >> > >> 2a84108f xfs: free the list of recovery items on error > >> > >> ... but I have no idea if that's in whatever kernel you're running. > >I am running kernel 3.8.13 with some changes (published at > >https://github.com/zadarastorage/zadara-xfs-pushback), but this > >problem also happens on pristine 3.8.13 from > >git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git, > >branch linux-stable-3.8.y. > > > >I do not have commit 2a84108f in this kernel. It was introduced in 3.14. > >I applied your patch to 3.8.13, but it doesn't fix the issue. Same > >problem happens when testing scenario that I described in > >http://oss.sgi.com/pipermail/xfs/2014-August/037637.html. > > > > Ok, thanks. Yeah, I don't see the double free regression in the 3.8.13 > stable branch. I went back to that kernel to try and confirm some > things. I do reproduce the problem with your metadump as well as the > test case I put together. I tested Dave's buf hold across sync I/O patch > and that does indeed prevent the problem. > > For whatever reason, neither the test case nor your metadump reproduce > the same problem on latest kernels. Instead, they reproduce this double > free regression. I suspect this is what you ran into when you reproduced > on a more recent kernel. If you'd like, feel free to try and verify that > by running your reproducer again on a recent kernel with this patch and > see if you can still reproduce a crash as with the 3.8.13 kernel. > > Brian > > >Thanks, > >Alex. > > > >> > >> Brian > >> > >> fs/xfs/xfs_log_recover.c | 11 ++++++++--- > >> 1 file changed, 8 insertions(+), 3 deletions(-) > >> > >> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c > >> index 176c4b3..daca9a6 100644 > >> --- a/fs/xfs/xfs_log_recover.c > >> +++ b/fs/xfs/xfs_log_recover.c > >> @@ -3528,10 +3528,15 @@ out: > >> if (!list_empty(&done_list)) > >> list_splice_init(&done_list, &trans->r_itemq); > >> > >> - xlog_recover_free_trans(trans); > >> - > >> error2 = xfs_buf_delwri_submit(&buffer_list); > >> - return error ? error : error2; > >> + > >> + if (!error) > >> + error = error2; > >> + /* caller frees trans on error */ > >> + if (!error) > >> + xlog_recover_free_trans(trans); > >> + > >> + return error; > >> } > >> > >> STATIC int > >> -- > >> 1.8.3.1 > >> > From webmaster@dedikxboss4.com Sun Aug 31 16:08:17 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=HTML_FONT_SIZE_LARGE, HTML_MESSAGE,T_DKIM_INVALID autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay1.corp.sgi.com [137.38.102.111]) by oss.sgi.com (Postfix) with ESMTP id 25AA27F62 for ; Sun, 31 Aug 2014 16:08:17 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay1.corp.sgi.com (Postfix) with ESMTP id DC8D08F8040 for ; Sun, 31 Aug 2014 14:08:13 -0700 (PDT) X-ASG-Debug-ID: 1409519286-04bdf010a167f150001-NocioJ Received: from dedikxboss4.com ([78.153.148.16]) by cuda.sgi.com with ESMTP id pqKOr0CsdvWldXUD (version=TLSv1 cipher=AES128-SHA bits=128 verify=NO) for ; Sun, 31 Aug 2014 14:08:08 -0700 (PDT) X-Barracuda-Envelope-From: webmaster@dedikxboss4.com X-Barracuda-Apparent-Source-IP: 78.153.148.16 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=dedikxboss4.com; s=dkim; h=Content-Type:MIME-Version:Date:From:Message-ID:Subject:To; bh=p6WyCGyuAAW8A97VJAungNoDaISpmirjMgK+K43q/RQ=; b=n1yXXP8Xkqi+8DBYyOQXZMA3/qirzCvMd0Q0rpYw0gHVR7QoZ3zH50QPqclczPFprJfAeZKgQUkG8hAV8/MPf7pgiUFChW+g5hLsWC6fBO/njiHKQXmlmI6uPqpR9k+KQNDKR/2YCIKvSDqQraTIJb90fSrwkBwvTgs4CqPsUH4=; Received: from puxas by dedikxboss4.com with local (Exim 4.80) (envelope-from ) id 1XOCIb-0000oE-V1; Mon, 01 Sep 2014 01:04:34 +0400 To: , , , , , , , , , , , , , , Subject: =?windows-1251?B?z/Do4fvr/O3g/yDB6Oft5fEt0ejx8uXs4A==?= X-PHP-Originating-Script: 500:xmail.php X-ASG-Orig-Subj: =?windows-1251?B?z/Do4fvr/O3g/yDB6Oft5fEt0ejx8uXs4A==?= Message-ID: <4144F2A1AA7E50E33F3A73CEEAFB8D01@qxvkk> From: =?windows-1251?B?wejn7eXxIPHo8fLl7OA=?= Date: Sun, 31 Aug 2014 22:04:24 +0100 Organization: =?windows-1251?B?wejn7eXxIPHo8fLl7OA=?= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_09AD_01CFC567.8684B0A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Live Mail 16.4.3528.331 X-MimeOLE: Produced By Microsoft MimeOLE V16.4.3528.331 X-Barracuda-Connect: UNKNOWN[78.153.148.16] X-Barracuda-Start-Time: 1409519287 X-Barracuda-Encrypted: AES128-SHA X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.60 X-Barracuda-Spam-Status: No, SCORE=0.60 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_TG035a, BSF_SC5_MJ1963, DKIM_SIGNED, DKIM_VERIFIED, HTML_FONT_SIZE_LARGE, HTML_MESSAGE, RDNS_NONE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9035 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- -0.00 DKIM_VERIFIED Domain Keys Identified Mail: signature passes verification 0.00 DKIM_SIGNED Domain Keys Identified Mail: message has a signature 0.00 HTML_FONT_SIZE_LARGE BODY: HTML font size is large 0.00 HTML_MESSAGE BODY: HTML included in message 0.00 BSF_SC0_TG035a Message contains invalid style definition 0.10 RDNS_NONE Delivered to trusted network by a host with no rDNS 0.50 BSF_SC5_MJ1963 Custom Rule MJ1963 This is a multi-part message in MIME format. ------=_NextPart_000_09AD_01CFC567.8684B0A0 Content-Type: text/plain; charset="windows-1251" Content-Transfer-Encoding: quoted-printable 100% =DD=EA=F1=EA=EB=FE=E7=E8=E2=ED=FB=E9 =EC=E0=F2=E5=F0=E8=E0=EB! 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------=_NextPart_000_09AD_01CFC567.8684B0A0-- From sheikh@bahrawi.com Sun Aug 31 18:18:44 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: ** X-Spam-Status: No, score=2.0 required=5.0 tests=DEAR_SOMETHING,HTML_MESSAGE autolearn=no version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay3.corp.sgi.com [198.149.34.15]) by oss.sgi.com (Postfix) with ESMTP id 39A227F5A for ; Sun, 31 Aug 2014 18:18:44 -0500 (CDT) Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by relay3.corp.sgi.com (Postfix) with ESMTP id AE5F3AC002 for ; Sun, 31 Aug 2014 16:18:40 -0700 (PDT) X-ASG-Debug-ID: 1409527117-04cb6c54fd6e6de0001-NocioJ Received: from web48.esoterica.pt (web48.esoterica.pt [80.172.241.34]) by cuda.sgi.com with ESMTP id BcuFhDusA600GKF7 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Sun, 31 Aug 2014 16:18:37 -0700 (PDT) X-Barracuda-Envelope-From: sheikh@bahrawi.com X-Barracuda-Apparent-Source-IP: 80.172.241.34 Received: by web48.esoterica.pt (Postfix, from userid 502) id A5A3C2A6F91; Mon, 1 Sep 2014 00:15:30 +0100 (WEST) Received: from 41.203.69.17 ([41.203.69.17]) by webmail.flamingo-gs.com (Horde Framework) with HTTP; Mon, 01 Sep 2014 00:15:27 +0100 Message-ID: <20140901001527.51311jntx4lcixzj@webmail.flamingo-gs.com> Date: Mon, 01 Sep 2014 00:15:27 +0100 From: Sheikh Mohammed Ali To: info@bahrawi.com Subject: Re: New Order MIME-Version: 1.0 X-ASG-Orig-Subj: Re: New Order Content-Type: multipart/alternative; boundary="=_2z9ttalyhuql" Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.3.9) X-Barracuda-Connect: web48.esoterica.pt[80.172.241.34] X-Barracuda-Start-Time: 1409527117 X-Barracuda-Encrypted: AES256-SHA X-Barracuda-URL: http://192.48.176.15:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.01 X-Barracuda-Spam-Status: No, SCORE=0.01 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC0_MISMATCH_TO, BSF_SC0_SA_TO_FROM_DOMAIN_MATCH, HTML_MESSAGE X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9041 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC0_MISMATCH_TO Envelope rcpt doesn't match header 0.00 HTML_MESSAGE BODY: HTML included in message 0.01 BSF_SC0_SA_TO_FROM_DOMAIN_MATCH Sender Domain Matches Recipient Domain This message is in MIME format. --=_2z9ttalyhuql Content-Type: text/plain; charset=ISO-8859-1 Content-Description: Plaintext Version of Message Content-Disposition: inline Content-Transfer-Encoding: 7bit Dear Sir, Greetings to you! As per the below mail, reply us with proforma ASAP for the attached order. Thanks Sheikh Mohammed Ali (Import Manager) Bahrawi Building, Al Qandeel Street Off Thahlia Street Al Azzizia District, P.O. Box 48, Jeddah 21411 Kingdom Of Saudi Arabia Tel: +966 2 665 2441 Fax: +966 2 665 2464 The beginning of the message: > From: Abdulmajeed Abdulwahab > Subject: New Order > Date: August 31, 2014 06:39:23 GMT +2 > To: "Sheikh Mohammed Ali" Dear Shiekh, Find attached below our Purchase order, forward it to the supplier for them to send us invoice with their best price. Note that item #534 and #535 is needed in a very large quantity, So they will have to give us a reasonable discount with their best price. I await the invoice asap. B/R Abdulmajeed Abdulwahab (Sales Manager) Bahrawi Building, Al Qandeel Street Off Thahlia Street Al Azzizia District, P.O. Box 48, Jeddah 21411 Kingdom Of Saudi Arabia Tel: +966 2 665 5533 Fax: +966 2 665 2464 559KB DOWNLOAD PO-3109014.PDF --=_2z9ttalyhuql Content-Type: text/html; charset=ISO-8859-1 Content-Description: HTML Version of Message Content-Disposition: inline Content-Transfer-Encoding: 7bit
Dear Sir,

Greetings to you!

As per the below mail, reply us with proforma ASAP for the attached order.

Thanks

Sheikh Mohammed Ali
(Import Manager)
Bahrawi Building, Al Qandeel Street Off Thahlia Street
Al Azzizia District, P.O. Box 48,
Jeddah 21411 Kingdom Of Saudi Arabia
Tel: +966 2 665 2441
Fax: +966 2 665 2464

The beginning of the message:

> From: Abdulmajeed Abdulwahab  <info@bahrawi.com>
> Subject: New Order
> Date: August 31, 2014 06:39:23 GMT +2
> To: "Sheikh Mohammed Ali"<sheikh@bahrawi.com>

Dear Shiekh,

Find attached below our Purchase order, forward it to the supplier for them to send us invoice with their best price.
Note that item #534 and #535 is needed in a very large quantity, So they will have to give us a reasonable discount with their best price.
I await the invoice asap.
B/R


Abdulmajeed Abdulwahab
(Sales Manager)
Bahrawi Building, Al Qandeel Street Off Thahlia Street
Al Azzizia District, P.O. Box 48,
Jeddah 21411 Kingdom Of Saudi Arabia
Tel: +966 2 665 5533
Fax: +966 2 665 2464

559KB DOWNLOAD
PO-3109014.PDF
--=_2z9ttalyhuql-- From david@fromorbit.com Sun Aug 31 18:57:58 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 114A97F5A for ; Sun, 31 Aug 2014 18:57:58 -0500 (CDT) Received: from cuda.sgi.com (cuda1.sgi.com [192.48.157.11]) by relay2.corp.sgi.com (Postfix) with ESMTP id D7835304043 for ; Sun, 31 Aug 2014 16:57:54 -0700 (PDT) X-ASG-Debug-ID: 1409529472-04bdf010a16827a0001-NocioJ Received: from ipmail06.adl6.internode.on.net (ipmail06.adl6.internode.on.net [150.101.137.145]) by cuda.sgi.com with ESMTP id itVnS03yFw7MJ93U for ; Sun, 31 Aug 2014 16:57:52 -0700 (PDT) X-Barracuda-Envelope-From: david@fromorbit.com X-Barracuda-Apparent-Source-IP: 150.101.137.145 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AoERAKa1A1R5LDJ8PGdsb2JhbABZgw2BKoIshQenTwEBAQEBBqAvAYEPFwUBAQEBODaEAwEBAQMBOhwjEAgDGAklDwUlAwcaE4g6B7lIARcYhWSJCEkHhEwFjx2NPpkSKy+BB4FIAQEB Received: from ppp121-44-50-124.lns20.syd6.internode.on.net (HELO dastard) ([121.44.50.124]) by ipmail06.adl6.internode.on.net with ESMTP; 01 Sep 2014 09:27:51 +0930 Received: from dave by dastard with local (Exim 4.80) (envelope-from ) id 1XOF0H-00022B-HX; Mon, 01 Sep 2014 09:57:49 +1000 Date: Mon, 1 Sep 2014 09:57:49 +1000 From: Dave Chinner To: Stan Hoeppner Cc: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 Message-ID: <20140831235749.GH20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Barracuda-Connect: ipmail06.adl6.internode.on.net[150.101.137.145] X-Barracuda-Start-Time: 1409529472 X-Barracuda-URL: http://192.48.157.11:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using per-user scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=2.7 tests=BSF_SC5_SA210e X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.9043 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 BSF_SC5_SA210e Custom Rule SA210e On Fri, Aug 29, 2014 at 09:55:53PM -0500, Stan Hoeppner wrote: > On Sat, 30 Aug 2014 09:55:38 +1000, Dave Chinner wrote: > > On Fri, Aug 29, 2014 at 11:38:16AM -0500, Stan Hoeppner wrote: > >> > >> Another storage crash yesterday. xfs_repair output inline below for the 7 > >> filesystems. I'm also pasting the dmesg output. This time there is no > >> oops, no call traces. The filesystems mounted fine after mounting, > >> replaying, and repairing. > > > > Ok, what version of xfs_repair did you use? > > 3.1.4 which is a little long in the tooth. And so not useful for th epurposes of finding free space tree corruptions. Old xfs_repair versions only rebuild the freespace trees - they don't check them first. IOWs, silence from an old xfs_repair does not mean the filesystem was free of errors. > >> This because some of our writes for a given low rate stream are as low as > >> 32KB and may be 2-3 seconds apart. With a 64-128KB chunk, 768 to 1536KB > >> stripe width, we'd get massive RMW without this feature. Testing thus > >> far > >> shows it is fairly effective, though we still get pretty serious RMW due > >> to > >> the fact we're writing 350 of these small streams per array at ~72 KB/s > >> max, along with 2 streams at ~48 MB/s, and and 50 streams at ~1.2 MB/s. > > >> Multiply this by 7 LUNs per controller and it becomes clear we're > >> putting a > >> pretty serious load on the firmware and cache. > > > > Yup, so having the array cache do the equivalent of sequential > > readahead multi-stream detection for writeback would make a big > > difference. But not simple to do.... > > Not at all, especially with only 3 GB of RAM to work with, as I'm told. > Seems low for a high end controller with 4x 12G SAS ports. We're only able > to achieve ~250 MB/s per array at the application due to the access pattern > being essentially random, and still with a serious quantity of RMWs. Which > is why we're going to test with an even smaller chunk of 32KB. I believe > that's the lower bound on these controllers. For this workload 16KB or > maybe even 8KB would likely be more optimal. We're also going to test with > bcache and a 400 GB Intel 3700 (datacenter grade) SSD backing two LUNs. > But with bcache chunk size should be far less relevant. I'm anxious to > kick those tires, but it'll be a couple of weeks. > > Have you played with bcache yet? Enough to scare me. So many ways for things to go wrong, no easy way to recover when things go wrong. And that's before I even get to performance warts, like having systems stall completely because there's tens or hundreds of GB of 4k random writes that have to be flushed to slow SATA RAID6 in the cache.... Cheers, Dave. PS: can you wrap your text at 68 or 72 columns so quoted text doesn't overflow 80 columns and get randomly wrapped and messed up? -- Dave Chinner david@fromorbit.com From stan@hardwarefreak.com Sun Aug 31 22:36:33 2014 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on oss.sgi.com X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham version=3.3.1 X-Original-To: xfs@oss.sgi.com Delivered-To: xfs@oss.sgi.com Received: from relay.sgi.com (relay2.corp.sgi.com [137.38.102.29]) by oss.sgi.com (Postfix) with ESMTP id 452AC7F4E for ; Sun, 31 Aug 2014 22:36:33 -0500 (CDT) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by relay2.corp.sgi.com (Postfix) with ESMTP id 33BAC304043 for ; Sun, 31 Aug 2014 20:36:30 -0700 (PDT) X-ASG-Debug-ID: 1409542585-04cbb0548797d620001-NocioJ Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id Jg32J6HSNJ3lD7cw for ; Sun, 31 Aug 2014 20:36:25 -0700 (PDT) X-Barracuda-Envelope-From: stan@hardwarefreak.com X-Barracuda-Apparent-Source-IP: 65.41.216.221 X-Barracuda-User-Whitelist: xfs@oss.sgi.com Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 5DD656C058; Sun, 31 Aug 2014 22:36:25 -0500 (CDT) Message-ID: <5403E9B9.7040608@hardwarefreak.com> Date: Sun, 31 Aug 2014 22:36:25 -0500 From: stan hoeppner User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Icedove/24.7.0 MIME-Version: 1.0 To: Dave Chinner CC: xfs@oss.sgi.com Subject: Re: storage, libaio, or XFS problem? 3.4.26 References: <3fe8c34c0ccbbd720015d273fa2b8b30@localhost> <20140826075345.GJ20518@dastard> <8c29baf987467a84f0b7c1d09c863662@localhost> <20140828003226.GO20518@dastard> <7f9e5aef187b44e899077467aeb0809d@localhost> <20140828230817.GU20518@dastard> <2d2ce7bb38c00a7d35f4a324f6a36cbb@localhost> <20140829235538.GF20518@dastard> <20140831235749.GH20518@dastard> X-ASG-Orig-Subj: Re: storage, libaio, or XFS problem? 3.4.26 In-Reply-To: <20140831235749.GH20518@dastard> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mo-65-41-216-221.sta.embarqhsd.net[65.41.216.221] X-Barracuda-Start-Time: 1409542585 X-Barracuda-URL: http://192.48.176.25:80/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at sgi.com X-Barracuda-BRTS-Status: 1 On 08/31/2014 06:57 PM, Dave Chinner wrote: > On Fri, Aug 29, 2014 at 09:55:53PM -0500, Stan Hoeppner wrote: >> On Sat, 30 Aug 2014 09:55:38 +1000, Dave Chinner wrote: >>> On Fri, Aug 29, 2014 at 11:38:16AM -0500, Stan Hoeppner wrote: >>>> >>>> Another storage crash yesterday. xfs_repair output inline below for the 7 >>>> filesystems. I'm also pasting the dmesg output. This time there is no >>>> oops, no call traces. The filesystems mounted fine after mounting, >>>> replaying, and repairing. >>> >>> Ok, what version of xfs_repair did you use? >> >> 3.1.4 which is a little long in the tooth. > > And so not useful for th epurposes of finding free space tree > corruptions. Old xfs_repair versions only rebuild the freespace > trees - they don't check them first. IOWs, silence from an old > xfs_repair does not mean the filesystem was free of errors. > >>>> This because some of our writes for a given low rate stream are as low as >>>> 32KB and may be 2-3 seconds apart. With a 64-128KB chunk, 768 to 1536KB >>>> stripe width, we'd get massive RMW without this feature. Testing thus >>>> far >>>> shows it is fairly effective, though we still get pretty serious RMW due >>>> to >>>> the fact we're writing 350 of these small streams per array at ~72 KB/s >>>> max, along with 2 streams at ~48 MB/s, and and 50 streams at ~1.2 MB/s. >> >>>> Multiply this by 7 LUNs per controller and it becomes clear we're >>>> putting a >>>> pretty serious load on the firmware and cache. >>> >>> Yup, so having the array cache do the equivalent of sequential >>> readahead multi-stream detection for writeback would make a big >>> difference. But not simple to do.... >> >> Not at all, especially with only 3 GB of RAM to work with, as I'm told. >> Seems low for a high end controller with 4x 12G SAS ports. We're only able >> to achieve ~250 MB/s per array at the application due to the access pattern >> being essentially random, and still with a serious quantity of RMWs. Which >> is why we're going to test with an even smaller chunk of 32KB. I believe >> that's the lower bound on these controllers. For this workload 16KB or >> maybe even 8KB would likely be more optimal. We're also going to test with >> bcache and a 400 GB Intel 3700 (datacenter grade) SSD backing two LUNs. >> But with bcache chunk size should be far less relevant. I'm anxious to >> kick those tires, but it'll be a couple of weeks. >> >> Have you played with bcache yet? > > Enough to scare me. So many ways for things to go wrong, no easy way > to recover when things go wrong. And that's before I even get to > performance warts, like having systems stall completely because > there's tens or hundreds of GB of 4k random writes that have to be > flushed to slow SATA RAID6 in the cache.... Yikes. I hadn't yet heard such opinions expressed. By go wrong I assume you mean the btrees or cached sector data getting broken, corrupted? > Cheers, > > Dave. > > PS: can you wrap your text at 68 or 72 columns so quoted text > doesn't overflow 80 columns and get randomly wrapped and messed up? This email should be. Lemme see what I can do with the others. The lovely Cisco VPN client I must use kills routing to my local subnet, so Icedovce can't connect to my IMAP server when the VPN is active. The test hardness app requires a shell unfortunately so I have to keep the tunnel open all the time, as the test runs are 40+ hours each. My last test just crashed a bit ago so I can use Icedove for this reply. I've been using Roundcube, an older version, which doesn't let me set the line wrap, at least not in the web GUI, might be in the config. I normally only use it when I'm remote, which is rare, so I've not kept it updated. Lemme see if I can open the firewall and get IMAP working through their VPN link so I can use Icedove. Sorry for the inconvenience. Believe me, it negatively affects me more than you. :( Stan