From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f47.google.com (mail-pb0-f47.google.com [209.85.160.47]) by kanga.kvack.org (Postfix) with ESMTP id 6EC2F6B0035 for ; Thu, 9 Jan 2014 17:48:53 -0500 (EST) Received: by mail-pb0-f47.google.com with SMTP id um1so3606609pbc.34 for ; Thu, 09 Jan 2014 14:48:53 -0800 (PST) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org. [140.211.169.12]) by mx.google.com with ESMTP id gx4si5082991pbc.201.2014.01.09.14.47.59 for ; Thu, 09 Jan 2014 14:48:29 -0800 (PST) Date: Thu, 9 Jan 2014 14:47:57 -0800 From: Andrew Morton Subject: Re: [patch 1/2] mm, memcg: avoid oom notification when current needs access to memory reserves Message-Id: <20140109144757.e95616b4280c049b22743a15@linux-foundation.org> In-Reply-To: References: <20131210103827.GB20242@dhcp22.suse.cz> <20131211095549.GA18741@dhcp22.suse.cz> <20131212103159.GB2630@dhcp22.suse.cz> <20131217162342.GG28991@dhcp22.suse.cz> <20131218200434.GA4161@dhcp22.suse.cz> <20131219144134.GH10855@dhcp22.suse.cz> <20140107162503.f751e880410f61a109cdcc2b@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: David Rientjes Cc: Michal Hocko , Johannes Weiner , KAMEZAWA Hiroyuki , linux-kernel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org, "Eric W. Biederman" On Thu, 9 Jan 2014 13:34:24 -0800 (PST) David Rientjes wrote: > On Tue, 7 Jan 2014, Andrew Morton wrote: > > > I just spent a happy half hour reliving this thread and ended up > > deciding I agreed with everyone! I appears that many more emails are > > needed so I think I'll drop > > http://ozlabs.org/~akpm/mmots/broken-out/mm-memcg-avoid-oom-notification-when-current-needs-access-to-memory-reserves.patch > > for now. > > > > The claim that > > mm-memcg-avoid-oom-notification-when-current-needs-access-to-memory-reserves.patch > > will impact existing userspace seems a bit dubious to me. > > > > I'm not sure why this was dropped since it's vitally needed for any sane > userspace oom handler to be effective. It was dropped because the other memcg developers disagreed with it. I'd really prefer not to have to spend a great amount of time parsing argumentative and repetitive emails to make a tie-break decision which may well be wrong anyway. Please work with the other guys to find an acceptable implementation. There must be *something* we can do? -- 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