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Re: xfs Warnings in syslog

To: Andrey Korolyov <andrey@xxxxxxx>
Subject: Re: xfs Warnings in syslog
From: Niklas Goerke <niklas@xxxxxxxxxxxxxxx>
Date: Fri, 08 Nov 2013 13:47:40 +0100
Cc: Jeff Liu <jeff.liu@xxxxxxxxxx>, ceph-devel <ceph-devel@xxxxxxxxxxxxxxx>, <xfs@xxxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
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I'm sorry for reporting back only now, but I did not get to try it out earlier. I upgraded one of my nodes to kernel 3.10 and the messages did not come up yet. It seems the kernel upgrade did the job.

Thank you very much for your help!

On Tue, 22 Oct 2013 13:36:56 +0100, Andrey Korolyov wrote:
Just my two cents:

XFS is a quite unstable with Ceph especially along with heavy CPU
usage up to 3.7(primarily soft lockups). I used 3.7 for eight months
before upgrade on production system and it performs just perfectly.

On Tue, Oct 22, 2013 at 1:29 PM, Jeff Liu <jeff.liu@xxxxxxxxxx> wrote:
Hello,

So It's better to add XFS mailing list to the CC-list. :)

I think this issue has been fixed by upstream commits:

From ff9a28f6c25d18a635abcab1f49db68108203dfb
From: Jan Kara <jack@xxxxxxx>
Date: Thu, 14 Mar 2013 14:30:54 +0100
Subject: [PATCH 1/1] xfs: Fix WARN_ON(delalloc) in xfs_vm_releasepage()


Thanks,
-Jeff

On 10/22/2013 07:46 PM, Niklas Goerke wrote:

Hi

My syslog and dmesg are being filled with the Warnings attached.
Looking at todays syslog I got up to 1101 of these warnings in the time from 10:50 to 11:13 (and only in that time, else the log was clean). I
found them on all four of my OSD hosts, all at about the same time.
I'm running kernel 3.2.0-4-amd64 on a debian 7.0. Ceph is on version
0.67.4. I have got 15 OSDs per OSD Host.

Ceph does not really seem to care about this, so I'm not sure what it is
all aboutâ
Still they are warnings in syslog and I hope you guys can tell me what
went wrong here and what I can do about it?

Thank you
Niklas


Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388018] ------------[ cut
here ]------------
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388030] WARNING: at
/build/linux-s5x2oE/linux-3.2.46/fs/xfs/xfs_aops.c:1091
xfs_vm_releasepage+0x76/0x8e [xfs]()
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388034] Hardware name:
X9DR3-F
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388036] Modules linked in: xfs autofs4 nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc ext3 jbd
loop acpi_cpufreq mperf coretemp crc32c_intel ghash_clmulni_intel
snd_pcm aesni_intel snd_page_alloc aes_x86_64 snd_timer aes_generic s
nd cryptd soundcore pcspkr sb_edac joydev evdev edac_core iTCO_wdt
i2c_i801 iTCO_vendor_support i2c_core ioatdma processor thermal_sys
container button ext4 crc16 jbd2 mbcache usbhid hid ses enclosure sg sd_mod crc_t10dif megaraid_sas ehci_hcd usbcore isci libsas usb_common liba
ta ixgbe mdio scsi_transport_sas scsi_mod igb dca [last unloaded:
scsi_wait_scan]
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388093] Pid: 3459605,
comm: ceph-osd Tainted: G W 3.2.0-4-amd64 #1 Debian 3.2.46-1
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388096] Call Trace:
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388102]
[<ffffffff81046b75>] ? warn_slowpath_common+0x78/0x8c
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388115]
[<ffffffffa048b98c>] ? xfs_vm_releasepage+0x76/0x8e [xfs]
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388122]
[<ffffffff810bedc5>] ? invalidate_inode_page+0x5e/0x80
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388129]
[<ffffffff810bee5d>] ? invalidate_mapping_pages+0x76/0x102
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388135]
[<ffffffff810b7b83>] ? sys_fadvise64_64+0x19f/0x1e2
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388140]
[<ffffffff81353b52>] ? system_call_fastpath+0x16/0x1b
Oct 22 11:11:19 cs-bigfoot06 kernel: [9744648.388144] ---[ end trace
e9640ed6f82f066d ]---
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