From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758228AbcBXVgd (ORCPT ); Wed, 24 Feb 2016 16:36:33 -0500 Received: from mail-pf0-f181.google.com ([209.85.192.181]:36563 "EHLO mail-pf0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750914AbcBXVgc (ORCPT ); Wed, 24 Feb 2016 16:36:32 -0500 Date: Wed, 24 Feb 2016 13:36:28 -0800 (PST) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Michal Hocko cc: Tetsuo Handa , akpm@linux-foundation.org, mgorman@suse.de, oleg@redhat.com, torvalds@linux-foundation.org, hughd@google.com, andrea@kernel.org, riel@redhat.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mm,oom: exclude oom_task_origin processes if they are OOM-unkillable. In-Reply-To: <20160224100520.GB20863@dhcp22.suse.cz> Message-ID: References: <1455719460-7690-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp> <20160218080909.GA18149@dhcp22.suse.cz> <20160223123457.GC14178@dhcp22.suse.cz> <20160224100520.GB20863@dhcp22.suse.cz> User-Agent: Alpine 2.10 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 24 Feb 2016, Michal Hocko wrote: > Hmm, is it really helpful though? What would you deduce from seeing a > large rss an OOM_SCORE_ADJ_MIN task? Misconfigured system? There must > have been a reason to mark the task that way in the first place so you > can hardly do anything about it. Moreover you can deduce the same from > the available information. > Users run processes that are vital to the machine with OOM_SCORE_ADJ_MIN. This does not make them immune to having memory leaks that caused the oom condition, and identifying that has triaged many bugs in the past. Thanks.