From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-f71.google.com (mail-lf0-f71.google.com [209.85.215.71]) by kanga.kvack.org (Postfix) with ESMTP id B27C06B0069 for ; Sun, 18 Sep 2016 17:13:59 -0400 (EDT) Received: by mail-lf0-f71.google.com with SMTP id k12so109149177lfb.2 for ; Sun, 18 Sep 2016 14:13:59 -0700 (PDT) Received: from mx2.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id 204si15786092wmk.102.2016.09.18.14.13.58 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sun, 18 Sep 2016 14:13:58 -0700 (PDT) Subject: Re: More OOM problems References: <20160918202614.GB31286@lucifer> From: Vlastimil Babka Message-ID: <5bd50aca-99ca-8ea7-6008-5f83494c84fd@suse.cz> Date: Sun, 18 Sep 2016 23:13:36 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Linus Torvalds , Lorenzo Stoakes Cc: Michal Hocko , Tetsuo Handa , Oleg Nesterov , Vladimir Davydov , Andrew Morton , Markus Trippelsdorf , Arkadiusz Miskiewicz , Ralf-Peter Rohbeck , Jiri Slaby , Olaf Hering , Joonsoo Kim , linux-mm On 09/18/2016 10:58 PM, Linus Torvalds wrote: > On Sun, Sep 18, 2016 at 1:26 PM, Lorenzo Stoakes wrote: >> >> I encountered this even after applying the patch discussed in the >> original thread at https://lkml.org/lkml/2016/8/22/184. It's not easily >> reproducible but it is happening enough that I could probably check some >> specific state when it next occurs or test out a patch to see if it >> stops it if that'd be useful. > > Since you can at least try to recreate it, how about the series in -mm > by Vlastimil? The series was called "reintroduce compaction feedback > for OOM decisions", and is in -mm right now: > > Vlastimil Babka (4): > Revert "mm, oom: prevent premature OOM killer invocation for high > order request" > mm, compaction: more reliably increase direct compaction priority > mm, compaction: restrict full priority to non-costly orders > mm, compaction: make full priority ignore pageblock suitability > > I'm not sure if Andrew has any other ones pending that are relevant to oom. The 4 patches above had more as prerequisities already in -mm. So one way to test is the whole tree: git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git tag mmotm-2016-09-14-16-49 or just a recent -next. -- 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