Michal Hocko wrote:
> On Sun 03-07-16 11:40:41, Tetsuo Handa wrote:
> > >From 00b7a14653c9700429f89e4512f6000a39cce59d Mon Sep 17 00:00:00 2001
> > From: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
> > Date: Sat, 2 Jul 2016 23:03:03 +0900
> > Subject: [PATCH 6/8] mm,oom_reaper: Stop clearing TIF_MEMDIE on remote thread.
> >
> > Since oom_has_pending_mm() controls whether to select next OOM victim,
> > we no longer need to clear TIF_MEMDIE on remote thread. Therefore,
> > revert related changes in commit 36324a990cf578b5 ("oom: clear TIF_MEMDIE
> > after oom_reaper managed to unmap the address space") and
> > commit e26796066fdf929c ("oom: make oom_reaper freezable") and
> > commit 74070542099c66d8 ("oom, suspend: fix oom_reaper vs.
> > oom_killer_disable race").
>
> The last revert is not safe. See
> http://lkml.kernel.org/r/1467365190-24640-3-git-send-email-mhocko@xxxxxxxxxx
Why?
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