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Date: Tue, 17 May 2016 15:21:39 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Michal Hocko <mhocko@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>, David Rientjes <rientjes@google.com>,
        linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>
Subject: Re: [PATCH] oom: consider multi-threaded tasks in
 task_will_free_mem
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On Tue, 17 May 2016 22:28:56 +0200 Michal Hocko <mhocko@kernel.org> wrote:

> Andrew, this is not in the mmotm tree now because I didn't feel really
> confortable with the patch without Oleg seeing it. But it seems Oleg is
> ok [1] with it so could you push it to Linus along with the rest of oom
> pile please?

Reluctant.  The CONFIG_COMPACTION=n regression which Joonsoo identified
is quite severe.  Before patch: 10000 forks succeed.  After patch: 500
forks fail.  Ouch.

How can we merge such a thing?