From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752666AbbJBOBK (ORCPT ); Fri, 2 Oct 2015 10:01:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35007 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752035AbbJBOBI (ORCPT ); Fri, 2 Oct 2015 10:01:08 -0400 Date: Fri, 2 Oct 2015 15:57:56 +0200 From: Oleg Nesterov To: Michal Hocko Cc: Tetsuo Handa , akpm@linux-foundation.org, rientjes@google.com, kwalker@redhat.com, skozina@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH -mm v2 1/3] mm/oom_kill: remove the wrong fatal_signal_pending() check in oom_kill_process() Message-ID: <20151002135756.GB28533@redhat.com> References: <20151001154115.GA10342@redhat.com> <20151001161916.GK24077@dhcp22.suse.cz> <20151001175319.GA16313@redhat.com> <201510022032.IFC65105.JFtMOQOVSHFLOF@I-love.SAKURA.ne.jp> <20151002121142.GD2927@dhcp22.suse.cz> <201510022133.IJB87676.OOOHFFMtVFSQJL@I-love.SAKURA.ne.jp> <20151002133244.GA16302@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151002133244.GA16302@dhcp22.suse.cz> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.