From: Milan Broz <mbroz@redhat.com>
To: Paul Clements <paul.clements@steeleye.com>
Cc: linux-raid@vger.kernel.org, Neil Brown <neilb@suse.de>,
kernel list <linux-kernel@vger.kernel.org>,
ian.campbell@citrix.com
Subject: Re: [BUG] raid1 behind writes alter bio structure illegally
Date: Wed, 29 Jul 2009 18:57:41 +0200 [thread overview]
Message-ID: <4A707F85.5090008@redhat.com> (raw)
In-Reply-To: <4A707578.3010901@steeleye.com>
Hi Paul,
Paul Clements wrote:
> I've run into this bug on a 2.6.18 kernel, but I think the fix is still
> applicable to the latest kernels (even though the symptoms would be
> slightly different).
>
> Perhaps someone who knows the block and/or SCSI layers well can comment
> on the legality of attaching new pages to a bio without fixing up the
> internal bio counters (details below)?
> LVM over raid1 over SCSI/nbd
Please can you try that backporting of this patch helps?
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=5d84070ee0a433620c57e85dac7f82faaec5fbb3
(If so, see https://bugzilla.redhat.com/show_bug.cgi?id=512387)
Milan
--
mbroz@redhat.com
next prev parent reply other threads:[~2009-07-29 16:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-29 16:14 [BUG] raid1 behind writes alter bio structure illegally Paul Clements
2009-07-29 16:57 ` Milan Broz [this message]
2009-07-29 20:18 ` Paul Clements
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