From: David Rientjes <rientjes@google.com>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: mhocko@kernel.org, akpm@linux-foundation.org,
aarcange@redhat.com, guro@fb.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [patch v2] mm, oom: fix concurrent munlock and oom reaper unmap
Date: Thu, 19 Apr 2018 12:14:04 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.21.1804191212530.157851@chino.kir.corp.google.com> (raw)
In-Reply-To: <201804191945.BBF87517.FVMLOQFOHSFJOt@I-love.SAKURA.ne.jp>
On Thu, 19 Apr 2018, Tetsuo Handa wrote:
> current code has a possibility that the OOM reaper is disturbed by
> unpredictable dependencies, like I worried that
>
> I think that there is a possibility that the OOM reaper tries to reclaim
> mlocked pages as soon as exit_mmap() cleared VM_LOCKED flag by calling
> munlock_vma_pages_all().
>
> when current approach was proposed.
That's exactly the issue that this patch is fixing, yes. If you brought
that possibility up then I'm sorry that it was ignored.
next prev parent reply other threads:[~2018-04-19 19:14 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 22:46 [patch] " David Rientjes
2018-04-18 0:57 ` Tetsuo Handa
2018-04-18 2:39 ` David Rientjes
2018-04-18 2:52 ` [patch v2] " David Rientjes
2018-04-18 3:55 ` Tetsuo Handa
2018-04-18 4:11 ` David Rientjes
2018-04-18 4:47 ` Tetsuo Handa
2018-04-18 5:20 ` David Rientjes
2018-04-18 7:50 ` Michal Hocko
2018-04-18 11:49 ` Tetsuo Handa
2018-04-18 11:58 ` Michal Hocko
2018-04-18 13:25 ` Tetsuo Handa
2018-04-18 13:44 ` Michal Hocko
2018-04-18 14:28 ` Tetsuo Handa
2018-04-18 19:14 ` David Rientjes
2018-04-19 6:35 ` Michal Hocko
2018-04-19 10:45 ` Tetsuo Handa
2018-04-19 11:04 ` Michal Hocko
2018-04-19 11:51 ` Tetsuo Handa
2018-04-19 12:48 ` Michal Hocko
2018-04-19 19:14 ` David Rientjes [this message]
2018-04-19 19:34 ` David Rientjes
2018-04-19 22:13 ` Tetsuo Handa
2018-04-20 8:23 ` Michal Hocko
2018-04-20 12:40 ` Michal Hocko
2018-04-22 3:22 ` David Rientjes
2018-04-22 3:48 ` [patch v2] mm, oom: fix concurrent munlock and oom reaperunmap Tetsuo Handa
2018-04-22 13:08 ` Michal Hocko
2018-04-24 2:31 ` David Rientjes
2018-04-24 5:11 ` Tetsuo Handa
2018-04-24 5:35 ` David Rientjes
2018-04-24 21:57 ` [patch v2] mm, oom: fix concurrent munlock and oom reaper unmap Tetsuo Handa
2018-04-24 22:25 ` David Rientjes
2018-04-24 22:34 ` [patch v3 for-4.17] " David Rientjes
2018-04-24 23:19 ` Michal Hocko
2018-04-24 13:04 ` [patch v2] mm, oom: fix concurrent munlock and oom reaperunmap Michal Hocko
2018-04-24 20:01 ` David Rientjes
2018-04-24 20:13 ` Michal Hocko
2018-04-24 20:22 ` David Rientjes
2018-04-24 20:31 ` Michal Hocko
2018-04-24 21:07 ` David Rientjes
2018-04-24 23:08 ` Michal Hocko
2018-04-24 23:14 ` Michal Hocko
2018-04-22 3:45 ` [patch v2] mm, oom: fix concurrent munlock and oom reaper unmap David Rientjes
2018-04-22 13:18 ` Michal Hocko
2018-04-23 16:09 ` Michal Hocko
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