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

From: Pedro Ribeiro
Date: Tue Jan 26 2010 - 16:50:26 EST

2010/1/26 Pekka Enberg <penberg@xxxxxxxxxxxxxx>:
> 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
>>>> (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.

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