From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx195.postini.com [74.125.245.195]) by kanga.kvack.org (Postfix) with SMTP id C4D656B0044 for ; Thu, 8 Nov 2012 07:44:29 -0500 (EST) Date: Thu, 8 Nov 2012 13:44:26 +0100 From: Michal Hocko Subject: Re: [PATCH 1/2] memcg, oom: provide more precise dump info while memcg oom happening Message-ID: <20121108124426.GF31821@dhcp22.suse.cz> References: <1352277602-21687-1-git-send-email-handai.szj@taobao.com> <1352277696-21724-1-git-send-email-handai.szj@taobao.com> <509BA799.505@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <509BA799.505@gmail.com> Sender: owner-linux-mm@kvack.org List-ID: To: Sha Zhengju Cc: David Rientjes , linux-mm@kvack.org, cgroups@vger.kernel.org, kamezawa.hiroyu@jp.fujitsu.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org On Thu 08-11-12 20:37:45, Sha Zhengju wrote: > On 11/08/2012 02:02 AM, David Rientjes wrote: > >On Wed, 7 Nov 2012, Sha Zhengju wrote: [..] > >>+ else > >>+ show_mem(SHOW_MEM_FILTER_NODES); > >Well that's disappointing if memcg == root_mem_cgroup, we'd probably like > >to know the global memory state to determine what the problem is. > > > > I really wondering if there is any case that can pass > root_mem_cgroup down here. No it cannot because the root cgroup doesn't have any limit so we cannot trigger memcg oom killer. -- Michal Hocko SUSE Labs -- 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