From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com [74.125.82.49]) by kanga.kvack.org (Postfix) with ESMTP id CADE46B0253 for ; Mon, 7 Mar 2016 11:08:43 -0500 (EST) Received: by mail-wm0-f49.google.com with SMTP id p65so114648443wmp.1 for ; Mon, 07 Mar 2016 08:08:43 -0800 (PST) Received: from mail-wm0-f66.google.com (mail-wm0-f66.google.com. [74.125.82.66]) by mx.google.com with ESMTPS id e129si15042961wmd.1.2016.03.07.08.08.41 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Mar 2016 08:08:41 -0800 (PST) Received: by mail-wm0-f66.google.com with SMTP id l68so11582140wml.3 for ; Mon, 07 Mar 2016 08:08:41 -0800 (PST) Date: Mon, 7 Mar 2016 17:08:38 +0100 From: Michal Hocko Subject: [PATCH] mm, oom: protect !costly allocations some more (was: Re: [PATCH 0/3] OOM detection rework v4) Message-ID: <20160307160838.GB5028@dhcp22.suse.cz> References: <1450203586-10959-1-git-send-email-mhocko@kernel.org> <20160203132718.GI6757@dhcp22.suse.cz> <20160225092315.GD17573@dhcp22.suse.cz> <20160229210213.GX16930@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160229210213.GX16930@dhcp22.suse.cz> Sender: owner-linux-mm@kvack.org List-ID: To: Hugh Dickins , Sergey Senozhatsky , Andrew Morton Cc: Linus Torvalds , Johannes Weiner , Mel Gorman , David Rientjes , Tetsuo Handa , Hillf Danton , KAMEZAWA Hiroyuki , linux-mm@kvack.org, LKML , Joonsoo Kim , Vlastimil Babka On Mon 29-02-16 22:02:13, Michal Hocko wrote: > Andrew, > could you queue this one as well, please? This is more a band aid than a > real solution which I will be working on as soon as I am able to > reproduce the issue but the patch should help to some degree at least. Joonsoo wasn't very happy about this approach so let me try a different way. What do you think about the following? Hugh, Sergey does it help for your load? I have tested it with the Hugh's load and there was no major difference from the previous testing so at least nothing has blown up as I am not able to reproduce the issue here. Other changes in the compaction are still needed but I would like to not depend on them right now. ---