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SubjectRe: [PATCH] sched: fix race in schedule
On 14/03/2008, Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> wrote:
>
> [ ... ]
>
> >> But maybe there is something esle that would be exposed by the
> >> 'rq->curr = rq->idle' manipulation... I can't provide examples right
> >> now though (I need to think on it).
> >
> > I share your concerns, I don't really like it either. Just spewing out
> > ideas here - bad ideas it seems :-/
> >
> > Ingo also suggested moving the balance calls right before
> > deactivate_task(), but that gives a whole other set of head-aches.
> >
>
>
> Well, what will we do about this issue?
> I see you're thinking to fix inconsistency in scheduler, right?
> I agree about it.
>
> However, I don't think it's good to remain this issue long time in
> the -stable kernel.
>
> Could you please let me know what I can do?

IMHO, the safest solution for the time being (and esp. for -stable)
would be to proceed with Hiroshi's patch. It looks safe and it does
fix a real problem.


>
> Hiroshi Shimamoto
>

--
Best regards,
Dmitry Adamushko


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