From: Jens Axboe <axboe@kernel.dk>
To: Tejun Heo <tj@kernel.org>
Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com>,
Steven Rostedt <rostedt@goodmis.org>,
namhyung@gmail.com, agk@redhat.com, dm-devel@redhat.com,
neilb@suse.de, LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Chris Mason <chris.mason@fusionio.com>,
linux-btrfs@vger.kernel.org
Subject: Re: [BUG REPORT] Kernel panic on 3.9.0-rc7-4-gbb33db7
Date: Fri, 19 Apr 2013 06:31:36 -0700 [thread overview]
Message-ID: <20130419133016.GQ4816@kernel.dk> (raw)
In-Reply-To: <20130419061755.GC9691@mtj.dyndns.org>
On Thu, Apr 18 2013, Tejun Heo wrote:
> On Thu, Apr 18, 2013 at 10:57:54PM -0700, Tejun Heo wrote:
> > No wonder this thing crashes. Chris, can't the original bio carry
> > bbio in bi_private and let end_bio_extent_readpage() free the bbio
> > instead of abusing bi_bdev like this?
>
> BTW, I think it's a bit too late to fix this properly from btrfs side
> unless we're gonna do -rc8, so let's revert the TP patch for now and
> sort this out in the next devel cycle. AFAICS, while disturbingly
> (ha|yu)cky, the bi_bdev trick should be okay without the new TP.
The tracing commit was already backed out yesterday, so no problems
there. I figured it'd be a bit too late to fix something this nasty in a
suitably clean and straight forward fashion.
--
Jens Axboe
next prev parent reply other threads:[~2013-04-19 13:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-17 8:36 [BUG REPORT] Kernel panic on 3.9.0-rc7-4-gbb33db7 Wanlong Gao
2013-04-17 14:46 ` Steven Rostedt
2013-04-18 12:37 ` Jens Axboe
2013-04-18 12:54 ` Wanlong Gao
2013-04-18 13:35 ` Jens Axboe
2013-04-18 14:14 ` Wanlong Gao
2013-04-18 14:30 ` Jens Axboe
2013-04-18 14:45 ` Wanlong Gao
2013-04-18 17:52 ` Tejun Heo
2013-04-19 4:06 ` Wanlong Gao
2013-04-18 16:08 ` Linus Torvalds
2013-04-18 17:27 ` Tejun Heo
2013-04-18 17:39 ` Jens Axboe
2013-04-18 18:07 ` Tejun Heo
2013-04-18 18:13 ` Jens Axboe
2013-04-18 19:10 ` Linus Torvalds
2013-04-18 20:37 ` Jens Axboe
2013-04-19 1:08 ` srostedt@gmail.com
2013-04-19 6:10 ` Wanlong Gao
2013-04-19 3:33 ` Wanlong Gao
2013-04-19 5:57 ` Tejun Heo
2013-04-19 6:17 ` Tejun Heo
2013-04-19 6:30 ` Wanlong Gao
2013-04-19 13:31 ` Jens Axboe [this message]
2013-04-19 8:24 ` Jan Schmidt
2013-04-19 12:15 ` Chris Mason
2013-04-19 13:32 ` Jens Axboe
2013-04-19 13:52 ` Chris Mason
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=20130419133016.GQ4816@kernel.dk \
--to=axboe@kernel.dk \
--cc=agk@redhat.com \
--cc=chris.mason@fusionio.com \
--cc=dm-devel@redhat.com \
--cc=gaowanlong@cn.fujitsu.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=namhyung@gmail.com \
--cc=neilb@suse.de \
--cc=rostedt@goodmis.org \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox