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

From: Markus Trippelsdorf
Date: Fri Aug 05 2011 - 04:46:19 EST


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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