Re: [PATCH] oom: skip frozen tasks

[Konstantin Khlebnikov]

David Rientjes wrote:
> On Fri, 26 Aug 2011, Konstantin Khlebnikov wrote:
>
> > > A much better solution would be to lower the badness score that the oom
> > > killer uses for PF_FROZEN threads so that they aren't considered a
> > > priority for kill unless there's nothing else left to kill.
> >
> > Anyway, oom killer shouldn't loop endlessly if it see TIF_MEMDIE on frozen
> > task,
> > it must go on and try to kill somebody else. We cannot wait for thawing this
> > task.
>
> Did you read my suggestion?  I quoted it above again for you.  The badness
> heuristic would only select those tasks to kill as a last resort in the
> hopes they will eventually be thawed and may exit.  Panicking the entire
> machine for what could be isolated by a cgroup is insanity.

Maybe just fix this "panic" logic? OOM killer should panic only on global memory shortage.
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