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

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Date:	Wed, 17 Apr 2013 16:36:08 +0800
From:	Wanlong Gao <gaowanlong@...fujitsu.com>
To:	Tejun Heo <tj@...nel.org>
CC:	namhyung@...il.com, rostedt@...dmis.org, agk@...hat.com,
	dm-devel@...hat.com, neilb@...e.de, Jens Axboe <axboe@...nel.dk>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Wanlong Gao <gaowanlong@...fujitsu.com>
Subject: [BUG REPORT] Kernel panic on 3.9.0-rc7-4-gbb33db7

Hi Tj, all,

I can get kernel panic on my machine with kernel 3.9.0-rc7-4-gbb33db7 every time
after booting for several minutes.

Here attached the panic picture and the config.
I'm sorry that the panic log is not completed.

But fortunately, the panic was gone when I reverted the below commit from Tj,

commit 3a366e614d0837d9fc23f78cdb1a1186ebc3387f
Author: Tejun Heo <tj@...nel.org>
Date:   Fri Jan 11 13:06:33 2013 -0800

    block: add missing block_bio_complete() tracepoint

I think this will be helpful for you to resolve this bug, and this may be urgent,
because it's already rc-7 now.

Thanks,
Wanlong Gao

View attachment "panic_config" of type "text/plain" (118374 bytes)

Download attachment "panic.JPG" of type "image/jpeg" (202151 bytes)