Re: + freezer-check-oom-kill-while-being-frozen.patch added to -mm tree

From: Oleg Nesterov
Date: Fri Oct 17 2014 - 11:27:51 EST


On 10/16, Cong Wang wrote:
>
> On Thu, Oct 16, 2014 at 3:22 PM, Oleg Nesterov <oleg@xxxxxxxxxx> wrote:
> > On 10/16, Cong Wang wrote:
> >>
> >> it will always stay in asleep after schedule()?
> >
> > Not always. But it will stay asleep in this particular case.
>
> Hmm, so we still need to wake it up in oom killer:
>
> if (test_tsk_thread_flag(task, TIF_MEMDIE)) {
> if (unlikely(frozen(task)))
> wake_up_state(task, TASK_UNINTERRUPTIBLE);
>
> I will update the patch if Michal doesn't.

I think it would be better to simply keep that __thaw_task() in
oom_scan_process_thread().

Oleg.

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