From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx162.postini.com [74.125.245.162]) by kanga.kvack.org (Postfix) with SMTP id 2B19C6B004F for ; Wed, 18 Jan 2012 22:42:00 -0500 (EST) Received: by obbta7 with SMTP id ta7so6545061obb.14 for ; Wed, 18 Jan 2012 19:41:59 -0800 (PST) Date: Wed, 18 Jan 2012 19:41:44 -0800 (PST) From: Hugh Dickins Subject: Re: [BUG] kernel BUG at mm/memcontrol.c:1074! In-Reply-To: <20120119122354.66eb9820.kamezawa.hiroyu@jp.fujitsu.com> Message-ID: References: <1326949826.5016.5.camel@lappy> <20120119122354.66eb9820.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: KAMEZAWA Hiroyuki Cc: Sasha Levin , hannes , mhocko@suse.cz, bsingharora@gmail.com, Dave Jones , Andrew Morton , linux-kernel , cgroups@vger.kernel.org, linux-mm@kvack.org On Thu, 19 Jan 2012, KAMEZAWA Hiroyuki wrote: > On Thu, 19 Jan 2012 07:10:26 +0200 > Sasha Levin wrote: > > > Hi all, > > > > During testing, I have triggered the OOM killer by mmap()ing a large block of memory. The OOM kicked in and tried to kill the process: > > > > two questions. > > 1. What is the kernel version ? It says 3.2.0-next-20120119-sasha #128 > 2. are you using memcg moutned ? I notice that, unlike Linus's git, this linux-next still has mm-isolate-pages-for-immediate-reclaim-on-their-own-lru.patch in. I think that was well capable of oopsing in mem_cgroup_lru_del_list(), since it didn't always know which lru a page belongs to. I'm going to be optimistic and assume that was the cause. Hugh -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org