Re: [PATCH 0/2] mm, oom: fix oom_reaper fallouts

From: Michal Hocko
Date: Tue Aug 15 2017 - 08:29:24 EST


On Mon 07-08-17 13:38:37, Michal Hocko wrote:
> Hi,
> there are two issues this patch series attempts to fix. First one is
> something that has been broken since MMF_UNSTABLE flag introduction
> and I guess we should backport it stable trees (patch 1). The other
> issue has been brought up by Wenwei Tao and Tetsuo Handa has created
> a test case to trigger it very reliably. I am not yet sure this is a
> stable material because the test case is rather artificial. If there is
> a demand for the stable backport I will prepare it, of course, though.
>
> I hope I've done the second patch correctly but I would definitely
> appreciate some more eyes on it. Hence CCing Andrea and Kirill. My
> previous attempt with some more context was posted here
> http://lkml.kernel.org/r/20170803135902.31977-1-mhocko@xxxxxxxxxx
>
> My testing didn't show anything unusual with these two applied on top of
> the mmotm tree.

unless anybody object can we have this merged? Whether to push this to
the stable tree is still questionable because it requires a rather
artificial workload to trigger the issue but if others think it would be
better to have it backported I will prepare backports for all relevant
stable trees.
--
Michal Hocko
SUSE Labs