xfs
[Top] [All Lists]

Re: Bad page state in process 'nfsd' with xfs

To: David Greaves <david@xxxxxxxxxxxx>
Subject: Re: Bad page state in process 'nfsd' with xfs
From: Nick Piggin <nickpiggin@xxxxxxxxxxxx>
Date: Sun, 30 Apr 2006 12:06:09 +1000
Cc: "'linux-kernel@xxxxxxxxxxxxxxx'" <linux-kernel@xxxxxxxxxxxxxxx>, linux-xfs@xxxxxxxxxxx
Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=nKFc+aD/7+R4dfQ9uocOwYUDTDHe3Dex9IbKjyi87SO0etkP7v+Sx62zuhwM3YquOfCZ3CQTfQx+ardLgOXlFDsx/VyjsVQLvc68r+Q+isXMy5qFShyrDD/cAfYMkDTVq+mXkomj7m5iSzovc7dlzq25hhBoVlDOMK2c2ErQ5kI= ;
In-reply-to: <4452797F.70700@dgreaves.com>
References: <4452797F.70700@dgreaves.com>
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1
David Greaves wrote:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

This was with 2.6.16.9

There's an nfs export from an xfs on an lvm on a raid5 on some
libata/sata disks.
(cc'ing xfs since I recall rumoured(?) badness in old nfs/xfs/md/lvm
setups and xfs_sendfile is mentioned)

dmesg had:

Bad page state in process 'nfsd'
page:b1602060 flags:0x80000008 mapping:00000000 mapcount:0 count:16777216
Trying to fix it up, but a reboot is needed
Backtrace:
 [<b013bda2>] bad_page+0x62/0x90
 [<b013c1c8>] prep_new_page+0x78/0x80

Looks like you have a bit flipped in 'count', which was not flipped when the page was last freed. Probably buggy RAM.

Running memtest overnight might confirm that.

--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com



<Prev in Thread] Current Thread [Next in Thread>