On 10/16, Cong Wang wrote:
>
> On Thu, Oct 16, 2014 at 1:39 PM, Oleg Nesterov <o...@redhat.com> wrote:
> >> Fix the issue by checking for TIF_MEMDIE thread flag and get away from the
> >> fridge if it is set. oom_scan_process_thread doesn't have to check for
> >> the frozen task anymore because do_send_sig_info will wake up the thread
> >> and TIF_MEMDIE is already set by that time.
> >
> > I must have missed something... but __refrigerator() sleeps in
> > TASK_UNINTERRUPTIBLE and do_send_sig_info() won't wake it up?
> >
>
> This is exactly what we are trying to fix. Make sure you read the patch
> as well before reply?
I did read the patch, but I can't understand it. I am sorry about that,
and I am asking for your help.
I agree that oom_scan_process_thread()->__thaw_task() doesn't really
help.
But also I can't understand why this patch helps. The changelog says:
do_send_sig_info will wake up the thread
why?
Oleg.
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