linux-kernel - Re: list corruption in the last few days. (block ? crypto ?)

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Message-ID: <20110805084614.GA1588@x4.trippels.de>
Date:	Fri, 5 Aug 2011 10:46:14 +0200
From:	Markus Trippelsdorf <markus@...ppelsdorf.de>
To:	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: list corruption in the last few days. (block ? crypto ?)

On 2011.08.04 at 21:00 -0400, Dave Jones wrote:
> Sometime in the last week, something was merged which causes my laptop
> to lock up occasionally.  I can trigger it most of the time just by
> doing a kernel build. When it gets to the final linking stage, it locks up hard.
> 
> I finally managed to coax something out of usb console to get the traces below,
> which seem to implicate something in the block layer ?
> 
> my root device is an lvm volume on an dmcrypt'd block dev, which might be relevant,
> as I don't see this happening on other machines with simpler setups.
> 
> I'm going to try bisecting, but it might take me a few days, because it's
> such a pain in the ass to reproduce this reliably.
> 
> 	Dave
> 
> 
> [ 5913.233035] ------------[ cut here ]------------
> [ 5913.233097] WARNING: at lib/list_debug.c:53 __list_del_entry+0x8d/0x98()
> [ 5913.233101] Hardware name: Adamo 13   
> [ 5913.233105] list_del corruption. prev->next should be ffffea000434fd20, but was ffffea0004199520

See also: http://lkml.org/lkml/2011/8/3/37

-- 
Markus
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