linux-kernel - Re: [PATCH] mm: oom_kill_process: do not abort if the victim is exiting

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Message-ID: <20160525152040.GA23127@esperanza>
Date:	Wed, 25 May 2016 18:20:40 +0300
From:	Vladimir Davydov <vdavydov@...tuozzo.com>
To:	Michal Hocko <mhocko@...nel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	David Rientjes <rientjes@...gle.com>,
	Johannes Weiner <hannes@...xchg.org>, <linux-mm@...ck.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: oom_kill_process: do not abort if the victim is
 exiting

On Wed, May 25, 2016 at 10:09:46AM +0200, Michal Hocko wrote:
...
> Well, my understanding of the OOM report is that it should tell you two
> things. The first one is to give you an overview of the overal memory
> situation when the system went OOM and the second one is o give you
> information that something has been _killed_ and what was the criteria
> why it has been selected (points). While the first one might be
> interesting for what you write above the second is not and it might be
> even misleading because we are not killing anything and the selected
> task is dying without the kernel intervention.

Fair enough. Printing that a task was killed while it actually died
voluntarily is not good. And select_bad_process may select dying tasks.
So let's leave it as is for now.

Thanks,
Vladimir