From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f198.google.com (mail-pf0-f198.google.com [209.85.192.198]) by kanga.kvack.org (Postfix) with ESMTP id DF3416B0292 for ; Thu, 29 Jun 2017 14:45:34 -0400 (EDT) Received: by mail-pf0-f198.google.com with SMTP id 86so93638813pfq.11 for ; Thu, 29 Jun 2017 11:45:34 -0700 (PDT) Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com. [67.231.145.42]) by mx.google.com with ESMTPS id 1si4629210plk.129.2017.06.29.11.45.33 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 29 Jun 2017 11:45:33 -0700 (PDT) Date: Thu, 29 Jun 2017 14:45:13 -0400 From: Roman Gushchin Subject: Re: [v3 5/6] mm, oom: don't mark all oom victims tasks with TIF_MEMDIE Message-ID: <20170629184513.GA27714@castle> References: <1498079956-24467-1-git-send-email-guro@fb.com> <1498079956-24467-6-git-send-email-guro@fb.com> <20170629085357.GF31603@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20170629085357.GF31603@dhcp22.suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: linux-mm@kvack.org, Vladimir Davydov , Johannes Weiner , Tejun Heo , Tetsuo Handa , kernel-team@fb.com, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org On Thu, Jun 29, 2017 at 10:53:57AM +0200, Michal Hocko wrote: > On Wed 21-06-17 22:19:15, Roman Gushchin wrote: > > We want to limit the number of tasks which are having an access > > to the memory reserves. To ensure the progress it's enough > > to have one such process at the time. > > > > If we need to kill the whole cgroup, let's give an access to the > > memory reserves only to the first process in the list, which is > > (usually) the biggest process. > > This will give us good chances that all other processes will be able > > to quit without an access to the memory reserves. > > I don't like this to be honest. Is there any reason to go the reduced > memory reserves access to oom victims I was suggesting earlier [1]? > > [1] http://lkml.kernel.org/r/http://lkml.kernel.org/r/1472723464-22866-2-git-send-email-mhocko@kernel.org I've nothing against your approach. What's the state of this patchset? Do you plan to bring it upstream? Roman -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org