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Subject: Re: WARNING in handle_mm_fault
References: <CACT4Y+ZCkv0BPOdo3aiheA5LXzXhcnuiw7kCoWL=b9FcC8-wqg@mail.gmail.com>
 <20151125084403.GA24703@dhcp22.suse.cz>
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Message-ID: <565592A1.50407@I-love.SAKURA.ne.jp>
Date: Wed, 25 Nov 2015 19:51:13 +0900
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To: Michal Hocko <mhocko@kernel.org>, Dmitry Vyukov <dvyukov@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>, cgroups@vger.kernel.org, "linux-mm@kvack.org" <linux-mm@kvack.org>, Andrew Morton <akpm@linux-foundation.org>, syzkaller <syzkaller@googlegroups.com>, Kostya Serebryany <kcc@google.com>, Alexander Potapenko <glider@google.com>, Sasha Levin <sasha.levin@oracle.com>, Eric Dumazet <edumazet@google.com>, Greg Thelen <gthelen@google.com>, Tejun Heo <tj@kernel.org>, Peter Zijlstra <peterz@infradead.org>

On 2015/11/25 17:44, Michal Hocko wrote:
> Sasha has reported the same thing some time ago
> http://www.spinics.net/lists/cgroups/msg14075.html. Tejun had a theory
> http://www.spinics.net/lists/cgroups/msg14078.html but we never got down
> to the solution.

Did you check assembly code?
https://gcc.gnu.org/ml/gcc/2012-02/msg00005.html

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