linux-kernel - Re: BUG at mm/slab.c:2990 with 2.6.33-rc5-tuxonice

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Date:	Tue, 26 Jan 2010 23:31:11 +0000
From:	Pedro Ribeiro <pedrib@...il.com>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: BUG at mm/slab.c:2990 with 2.6.33-rc5-tuxonice

2010/1/26 Pedro Ribeiro <pedrib@...il.com>:
> 2010/1/26 Pekka Enberg <penberg@...helsinki.fi>:
>> Matt Mackall wrote:
>>>
>>> On Wed, 2010-01-27 at 07:39 +1100, Nigel Cunningham wrote:
>>>>
>>>> Hi.
>>>>
>>>> Pedro Ribeiro wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>> I hit a bug at mm/slab.c:2990 with .33-rc5.
>>>>> Unfortunately nothing more is available than a screen picture with a
>>>>> crash dump, although it is a good one.
>>>>> The bug was hit almost at the end of a hibernation cycle with
>>>>> Tux-on-Ice, while saving memory contents to an encrypted swap
>>>>> partition.
>>>>>
>>>>> The image is here http://img264.imageshack.us/img264/9634/mmslab.jpg
>>>>> (150 kb)
>>>>>
>>>>> Hopefully it is of any use for you. Please let me know if you need any
>>>>> more info.
>>>>
>>>> Looks to me to be completely unrelated to TuxOnIce - at least at a first
>>>> glance.
>>>>
>>>> Ccing the slab allocator maintainers listed in MAINTAINERS.
>>>
>>> Not sure if this will do us any good, it's the second oops.
>>
>> Looks like slab corruption to me which is usually not a slab bug but caused
>> by buggy callers. Is CONFIG_DEBUG_SLAB enabled?
>>
>
> I have enabled it and compiled the kernel. As soon as I hit the bug, I
> will send a photo here.
>
> Regards,
> Pedro
>

The pic is here.
http://img43.imageshack.us/img43/3644/dsc01061ko.jpg

There was a buttload of output before that, which I tried capturing in
video, but its too crappy to post.
Do you know if/where I can get patches for KDB in .33?

Regards,
Pedro
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