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: <20151002135756.GB28533@redhat.com>
Date:	Fri, 2 Oct 2015 15:57:56 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	Michal Hocko <mhocko@...nel.org>
Cc:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	akpm@...ux-foundation.org, rientjes@...gle.com, kwalker@...hat.com,
	skozina@...hat.com, 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 10/02, Michal Hocko wrote:
>
> So clone without CLONE_THREAD should create a new thread group leader
> and so create a new thread group.

Yes.

> Unless there is some other trickery
> which I do not see right now for_each_thread from the parent task
> shouldn't see those which are cloned without CLONE_THREAD.

Yes.

But I still do not understand what are you talking about, sorry ;)

So let me say just in case that coredump (namely zap_threads()) will
also kill other thread groups with the same ->mm.

Oleg.

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