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

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Date:	Mon, 8 Aug 2011 09:16:54 +0300
From:	Pekka Enberg <penberg@...nel.org>
To:	Xiaotian Feng <xtfeng@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Dave Jones <davej@...hat.com>,
	Christoph Lameter <cl@...ux.com>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jens Axboe <jaxboe@...ionio.com>
Subject: Re: list corruption in the last few days. (block ? crypto ?)

On Mon, Aug 8, 2011 at 9:14 AM, Xiaotian Feng <xtfeng@...il.com> wrote:
> On Mon, Aug 8, 2011 at 1:18 PM, Pekka Enberg <penberg@...nel.org> wrote:
>> Hi Linus,
>>
>> On Sun, Aug 7, 2011 at 11:58 AM, Pekka Enberg <penberg@...nel.org> wrote:
>>>>
>>>> Christoph, I've been reading the code and spotted two potential issues in
>>>> __slab_free(). The first one seems like an off-by-one where our
>>>> comparison
>>>> in deactivate_slab() doesn't match __slab_free.
>>>>
>>>> The other one is remove_full() call in __slab_free() that can get called
>>>> even if cache debugging is not enabled.
>>>>
>>>> Hmm?
>>
>> On Sun, 7 Aug 2011, Linus Torvalds wrote:
>>>
>>> I'd like to do -rc1 today, regardless of whether this fixes things or
>>> not (-rc1 is already a few days delayed).
>>>
>>> The patch seems to be a good fix, and a likely candidate for the
>>> corruption. Commit log and sign-off? I assume you've given it some
>>> testing, even if you couldn't reproduce the original issue?
>>
>> No, I haven't tested the patch myself but here's one in proper format in
>> case someone wants to test it.
>
> I applied it and I'm still seeing the corruption warning start from this :(

Thanks for testing. Can you share your .config, please?
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