On Tue, Oct 16, 2007 at 11:10:12AM +0200, Ingo Molnar wrote:
>
> * Kamalesh Babulal <[email protected]> wrote:
>
> > While running kernbench with the 2.6.23-git8 following oops is
> > produced
> >
> > Unable to handle kernel NULL pointer dereference at 0000000000000010 RIP:
> > [<ffffffff8033f347>] __rb_rotate_left+0x7/0x70
>
> that looks nasty ...
>
> and -git8 should have the v2.6.23 scheduler code in essence.
To fill in a few details. This was triggered in the middle of a
kernbench run on the machine. A job with just dbench runs in it ran to
completion. The machine is a 4 node numa x86_64 system.
Seems that most schedular options are on:
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_FAIR_USER_SCHED=y
At the moment we don't have any historical jobs back from 2.6.23 so I
cannot be more specific as to when it arrived in mainline. The x86/x86_64
merge broke our build process; a bad assumption here, not a problem with
the merge.
-apw
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