linux-kernel - Re: [BUG REPORT] Kernel panic on 3.9.0-rc7-4-gbb33db7

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Message-ID: <20130418172732.GB9897@mtj.dyndns.org>
Date:	Thu, 18 Apr 2013 10:27:32 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jens Axboe <axboe@...nel.dk>,
	Wanlong Gao <gaowanlong@...fujitsu.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Namhyung Kim <namhyung@...il.com>,
	Alasdair G Kergon <agk@...hat.com>,
	"dm-devel@...hat.com" <dm-devel@...hat.com>,
	Neil Brown <neilb@...e.de>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [BUG REPORT] Kernel panic on 3.9.0-rc7-4-gbb33db7

Hello,

On Thu, Apr 18, 2013 at 09:08:34AM -0700, Linus Torvalds wrote:
> On Thu, Apr 18, 2013 at 7:30 AM, Jens Axboe <axboe@...nel.dk> wrote:
> >
> > Could you capture the full dump? I'd like to see what rcx was, and that
> > seems to have scrolled off.
> 
> You don't need it. The %cr2 value shows the address of the bad access,
> and it's 0x00000001.

If I'm not mistaken, it seems like we have a bio which has 1 as its
->bi_bdev.  Ummm.... no idea whatsoever how that can happen tho right
now.  Looking into it.

Thanks.

-- 
tejun
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