linux-kernel - Re: [PATCH v2] mm,oom: exclude oom_task_origin processes if they are OOM-unkillable.

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Message-ID: <20160218121333.GD18149@dhcp22.suse.cz>
Date:	Thu, 18 Feb 2016 13:13:33 +0100
From:	Michal Hocko <mhocko@...nel.org>
To:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Cc:	rientjes@...gle.com, akpm@...ux-foundation.org, mgorman@...e.de,
	oleg@...hat.com, torvalds@...ux-foundation.org, hughd@...gle.com,
	andrea@...nel.org, riel@...hat.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mm,oom: exclude oom_task_origin processes if they are
 OOM-unkillable.

On Thu 18-02-16 13:08:49, Michal Hocko wrote:
> I guess we can safely remove the memcg
> argument from oom_badness and oom_unkillable_task. At least from a quick
> glance...

No we cannot actually. oom_kill_process could select a child which is in
a different memcg in that case...
-- 
Michal Hocko
SUSE Labs