Re: [BUG] 2.6.23-git8 kernel oops at __rb_rotate_left+0x7/0x70

Andy Whitcroft
2007-10-17T14:44:28Z

On Wed, Oct 17, 2007 at 04:21:40PM +0200, Ingo Molnar wrote:
>
> * Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> wrote:
>
> > While running kernbench with the 2.6.23-git8 following oops is
> > produced
>
> Dmitry found something that might explain the crash: could you check
> whether the patch below fixes it?
>
> Ingo
>
> ---------------------->
> Subject: sched: fix new task startup crash
> From: Ingo Molnar <mingo@elte.hu>
>
> this should fix the put_prev_task crashes that were reported,
> Dmitry Adamushko noticed that it's not valid to call into
> task_new_fair() if this_cpu != task_cpu(p).
>
> Reported-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
> Reported-by: Andy Whitcroft <apw@shadowen.org>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>

I have submitted jobs against a couple of the releases which showed this
problem with this patch. They will be a while as there are other tests
running at the moment. Will let you know when they are done.

-apw