linux-kernel - Re: [PATCH -mm v2 1/3] mm/oom_kill: remove the wrong fatal_signal_pending() check in oom_kill

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Message-ID: <20151001124941.GC24077@dhcp22.suse.cz>
Date:	Thu, 1 Oct 2015 14:49:42 +0200
From:	Michal Hocko <mhocko@...nel.org>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	Kyle Walker <kwalker@...hat.com>,
	Stanislav Kozina <skozina@...hat.com>,
	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -mm v2 1/3] mm/oom_kill: remove the wrong
 fatal_signal_pending() check in oom_kill_process()

On Wed 30-09-15 20:24:05, Oleg Nesterov wrote:
[...]
> It is possible that the group leader
> has the pending SIGKILL because its sub-thread originated the coredump,
> in this case we must not skip this process.

I do not understand this. If the group leader has SIGKILL pending it
will die anyway regardless whether we send another sigkill or not, no?

Or is the issue that another SIGKILL will wake it up?
-- 
Michal Hocko
SUSE Labs
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