[powerpc crash] Re: Linux 2.6.24-rc7 kernel BUG atkernel/sched.c:5156!

From: Ingo Molnar
Date: Tue Jan 08 2008 - 11:30:07 EST



* Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx> wrote:

> Hi,
>
> When booting the 2.6.24-rc7 kernel on the powerpc, kernel bug at
> kernel.sched.c is triggered
>
> [ 0.000000] Kernel command line: ro console=hvc0 rhgb quiet root=LABEL=/
> [ 0.149567] BUG: scheduling while atomic: kthreadd/2/0x0006f34c
> [ 0.149655] BUG: scheduling while atomic: kthreadd/3/0xbe0d8168
> [ 0.149714] ------------[ cut here ]------------
> [ 0.149722] kernel BUG at kernel/sched.c:5156!

hm, that looks pretty nasty. Wondering why the atomic check did not
produce a stacktrace. By the time we get to the migration thread's code
it's probably late and we just get to see the effects of data
corruption.

Ingo
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