From: Paul Clements <paul.clements@steeleye.com>
To: Milan Broz <mbroz@redhat.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 16:18:46 -0400 [thread overview]
Message-ID: <4A70AEA6.9030209@steeleye.com> (raw)
In-Reply-To: <4A707F85.5090008@redhat.com>
Milan Broz wrote:
> 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)
Thanks Milan. I tested the patch and it does fix the issue. I replied to
the bugzilla report with this information.
--
Paul
prev parent reply other threads:[~2009-07-29 20:18 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
2009-07-29 20:18 ` Paul Clements [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4A70AEA6.9030209@steeleye.com \
--to=paul.clements@steeleye.com \
--cc=ian.campbell@citrix.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-raid@vger.kernel.org \
--cc=mbroz@redhat.com \
--cc=neilb@suse.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.