Re: Kernel BUG at include/linux/gfp.h:80

[Pekka Enberg <penberg@cs.helsinki.fi>]

Hi Carsten,

On 1/19/06, Carsten Otto <c-otto@gmx.de> wrote:
> My kernel panics at every boot, see screenshot[1].
>
> I upgraded my CPU to an Opteron 175 (Dual Core) and enabled SMP in the
> kernel. With "nosmp" the kernel boots (but has problems finding one hard
> disk later on, some IRQ timeout?). The kernel version is 2.6.15.1,
> config see here[2].
>
> With my current non-SMP-kernel (2.6.14.4) everything works.
>
> Please tell me what that BUG message means and how I can get my system
> running.
>
> Addition information regarding the hardware can be found here[3].
>
> Thanks a lot,
> Carsten
>
> [1]: http://c-otto.de/panic.jpg
> [2]: http://c-otto.de/config.txt
> [3]: http://c-otto.de/index.php?x=hardware#teile

I think the problem is related to the following changeset where we
potentially allocate with GFP_DMA and GFP_DMA32 set at the same time.
Andi?

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=47492d3667ec519172ab978bd8231b8c7152fa9d

                                   Pekka
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