From: Michal Hocko <mhocko@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrea Argangeli <andrea@kernel.org>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
Oleg Nesterov <oleg@redhat.com>,
Wenwei Tao <wenwei.tww@alibaba-inc.com>,
linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 0/2] mm, oom: fix oom_reaper fallouts
Date: Mon, 7 Aug 2017 13:38:37 +0200 [thread overview]
Message-ID: <20170807113839.16695-1-mhocko@kernel.org> (raw)
Hi,
there are two issues this patch series attempts to fix. First one is
something that has been broken since MMF_UNSTABLE flag introduction
and I guess we should backport it stable trees (patch 1). The other
issue has been brought up by Wenwei Tao and Tetsuo Handa has created
a test case to trigger it very reliably. I am not yet sure this is a
stable material because the test case is rather artificial. If there is
a demand for the stable backport I will prepare it, of course, though.
I hope I've done the second patch correctly but I would definitely
appreciate some more eyes on it. Hence CCing Andrea and Kirill. My
previous attempt with some more context was posted here
http://lkml.kernel.org/r/20170803135902.31977-1-mhocko@kernel.org
My testing didn't show anything unusual with these two applied on top of
the mmotm tree.
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next reply other threads:[~2017-08-07 11:38 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-07 11:38 Michal Hocko [this message]
2017-08-07 11:38 ` [PATCH 1/2] mm: fix double mmap_sem unlock on MMF_UNSTABLE enforced SIGBUS Michal Hocko
2017-08-15 0:49 ` David Rientjes
2017-08-07 11:38 ` [PATCH 2/2] mm, oom: fix potential data corruption when oom_reaper races with writer Michal Hocko
2017-08-08 17:48 ` Andrea Arcangeli
2017-08-08 23:35 ` Tetsuo Handa
2017-08-09 18:36 ` Andrea Arcangeli
2017-08-10 8:21 ` Michal Hocko
2017-08-10 13:33 ` Michal Hocko
2017-08-11 2:28 ` Tetsuo Handa
2017-08-11 7:09 ` Michal Hocko
2017-08-11 7:54 ` Tetsuo Handa
2017-08-11 10:22 ` Andrea Arcangeli
2017-08-11 10:42 ` Andrea Arcangeli
2017-08-11 11:53 ` Tetsuo Handa
2017-08-11 12:08 ` Michal Hocko
2017-08-11 15:46 ` Tetsuo Handa
2017-08-14 13:59 ` Michal Hocko
2017-08-14 22:51 ` Tetsuo Handa
2017-08-15 6:55 ` Michal Hocko
2017-08-15 8:41 ` Michal Hocko
2017-08-15 10:06 ` Tetsuo Handa
2017-08-15 12:26 ` Michal Hocko
2017-08-15 12:58 ` Tetsuo Handa
2017-08-17 13:58 ` Michal Hocko
2017-08-15 5:30 ` Tetsuo Handa
2017-08-07 13:28 ` [PATCH 0/2] mm, oom: fix oom_reaper fallouts Tetsuo Handa
2017-08-07 14:04 ` Michal Hocko
2017-08-07 15:23 ` Tetsuo Handa
2017-08-15 12:29 ` Michal Hocko
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