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SubjectRe: BUG: using smp_processor_id() during suspend with 2.6.25-rc8
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On Friday, 11 of April 2008, Andi Kleen wrote:
> > thanks Pavel, i picked this up into sched-devel.git - it makes sense
> > independently of whether it solves the warning.
>
> This means the CPU preempt sanity checking is effectively disabled
> on UP kernels. Even though more and more people should run multi-core
> now there is still a sizeable user base left on single core.
>
> Don't think this is a good idea. We need even the UP testers.

Agreed.

Besides, I'd like to learn what caused the problem to appear in the first
place.

> If he wants this for suspend or machine check/oops (always useful there
> to disable such warnings) then there should
> be separate checks for this. Perhaps system_state could be enhanced for this?

That would make sense.

Thanks,
Rafael


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