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From: Michal Hocko <mhocko@kernel.org>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Wenwei Tao <wenwei.tww@alibaba-inc.com>,
	Oleg Nesterov <oleg@redhat.com>,
	David Rientjes <rientjes@google.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: Re: [PATCH] mm, oom: fix potential data corruption when oom_reaper races with writer
Date: Fri, 4 Aug 2017 10:32:05 +0200	[thread overview]
Message-ID: <20170804083205.GH26029@dhcp22.suse.cz> (raw)
In-Reply-To: <201708040825.v748Pkul053862@www262.sakura.ne.jp>

On Fri 04-08-17 17:25:46, Tetsuo Handa wrote:
> Well, while lockdep warning is gone, this problem is remaining.

Ohh, I should have been more specific. Both patches have to be applied.
I have based this one first because it should go to stable. The later
one needs a trivial conflict resolution. I will send both of them as a
reply to this email!

Thanks for retesting. It matches my testing results.
-- 
Michal Hocko
SUSE Labs

WARNING: multiple messages have this Message-ID (diff)
From: Michal Hocko <mhocko@kernel.org>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	Wenwei Tao <wenwei.tww@alibaba-inc.com>,
	Oleg Nesterov <oleg@redhat.com>,
	David Rientjes <rientjes@google.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: Re: [PATCH] mm, oom: fix potential data corruption when oom_reaper races with writer
Date: Fri, 4 Aug 2017 10:32:05 +0200	[thread overview]
Message-ID: <20170804083205.GH26029@dhcp22.suse.cz> (raw)
In-Reply-To: <201708040825.v748Pkul053862@www262.sakura.ne.jp>

On Fri 04-08-17 17:25:46, Tetsuo Handa wrote:
> Well, while lockdep warning is gone, this problem is remaining.

Ohh, I should have been more specific. Both patches have to be applied.
I have based this one first because it should go to stable. The later
one needs a trivial conflict resolution. I will send both of them as a
reply to this email!

Thanks for retesting. It matches my testing results.
-- 
Michal Hocko
SUSE Labs

--
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  reply	other threads:[~2017-08-04  8:32 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-03 13:59 [PATCH] mm, oom: fix potential data corruption when oom_reaper races with writer Michal Hocko
2017-08-03 13:59 ` Michal Hocko
2017-08-04  6:46 ` Tetsuo Handa
2017-08-04  7:42   ` Michal Hocko
2017-08-04  7:42     ` Michal Hocko
2017-08-04  8:25     ` Tetsuo Handa
2017-08-04  8:32       ` Michal Hocko [this message]
2017-08-04  8:32         ` Michal Hocko
2017-08-04  8:33         ` [PATCH 1/2] mm: fix double mmap_sem unlock on MMF_UNSTABLE enforced SIGBUS Michal Hocko
2017-08-04  8:33           ` Michal Hocko
2017-08-04  8:33           ` [PATCH 2/2] mm, oom: fix potential data corruption when oom_reaper races with writer Michal Hocko
2017-08-04  8:33             ` Michal Hocko
2017-08-04  9:16       ` Re: [PATCH] " Michal Hocko
2017-08-04  9:16         ` Michal Hocko
2017-08-04 10:41         ` Tetsuo Handa
2017-08-04 10:41           ` Tetsuo Handa
2017-08-04 11:00           ` Michal Hocko
2017-08-04 11:00             ` Michal Hocko
2017-08-04 14:56             ` Michal Hocko
2017-08-04 14:56               ` Michal Hocko
2017-08-04 16:49               ` Tetsuo Handa
2017-08-04 16:49                 ` Tetsuo Handa
2017-08-05  1:46               ` 陶文苇
2017-08-05  1:46                 ` 陶文苇

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