From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m2.gw.fujitsu.co.jp ([10.0.50.72]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id m9L9g4XE007463 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Tue, 21 Oct 2008 18:42:05 +0900 Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 9B6391B801F for ; Tue, 21 Oct 2008 18:42:04 +0900 (JST) Received: from s7.gw.fujitsu.co.jp (s7.gw.fujitsu.co.jp [10.0.50.97]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 6C63C2DC021 for ; Tue, 21 Oct 2008 18:42:04 +0900 (JST) Received: from s7.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s7.gw.fujitsu.co.jp (Postfix) with ESMTP id 438491DB8044 for ; Tue, 21 Oct 2008 18:42:04 +0900 (JST) Received: from m106.s.css.fujitsu.com (m106.s.css.fujitsu.com [10.249.87.106]) by s7.gw.fujitsu.co.jp (Postfix) with ESMTP id DCD151DB803E for ; Tue, 21 Oct 2008 18:42:03 +0900 (JST) Date: Tue, 21 Oct 2008 18:41:38 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [memcg BUG] unable to handle kernel NULL pointer derefence at 00000000 Message-Id: <20081021184138.905a1521.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20081021183318.aa6364ec.nishimura@mxp.nes.nec.co.jp> References: <20081017194804.fce28258.nishimura@mxp.nes.nec.co.jp> <20081017195601.0b9abda1.nishimura@mxp.nes.nec.co.jp> <6599ad830810201253u3bca41d4rabe48eb1ec1d529f@mail.gmail.com> <20081021101430.d2629a81.kamezawa.hiroyu@jp.fujitsu.com> <48FD6901.6050301@linux.vnet.ibm.com> <20081021143955.eeb86d49.kamezawa.hiroyu@jp.fujitsu.com> <48FD74AB.9010307@cn.fujitsu.com> <20081021155454.db6888e4.kamezawa.hiroyu@jp.fujitsu.com> <48FD7EEF.3070803@cn.fujitsu.com> <20081021161621.bb51af90.kamezawa.hiroyu@jp.fujitsu.com> <48FD82E3.9050502@cn.fujitsu.com> <20081021171801.4c16c295.kamezawa.hiroyu@jp.fujitsu.com> <48FD943D.5090709@cn.fujitsu.com> <20081021175735.0c3d3534.kamezawa.hiroyu@jp.fujitsu.com> <20081021183318.aa6364ec.nishimura@mxp.nes.nec.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Daisuke Nishimura Cc: Li Zefan , balbir@linux.vnet.ibm.com, Paul Menage , linux-mm@kvack.org, mel@csn.ul.ie List-ID: On Tue, 21 Oct 2008 18:33:18 +0900 Daisuke Nishimura wrote: > On Tue, 21 Oct 2008 17:57:35 +0900, KAMEZAWA Hiroyuki wrote: > > On Tue, 21 Oct 2008 16:35:09 +0800 > > Li Zefan wrote: > > > > > KAMEZAWA Hiroyuki wrote: > > > > On Tue, 21 Oct 2008 15:21:07 +0800 > > > > Li Zefan wrote: > > > >> dmesg is attached. > > > >> > > > > Thanks....I think I caught some. (added Mel Gorman to CC:) > > > > > > > > NODE_DATA(nid)->spanned_pages just means sum of zone->spanned_pages in node. > > > > > > > > So, If there is a hole between zone, node->spanned_pages doesn't mean > > > > length of node's memmap....(then, some hole can be skipped.) > > > > > > > > OMG....Could you try this ? > > > > > > > > > > No luck, the same bug still exists. :( > > > > > This is a little fixed one.. > > > I can reproduce a similar problem(hang on boot) on 2.6.27-git9, > but this patch doesn't help either on my environment... > > I attach a console log(I've not seen NULL pointer dereference yet). > > Thanks....boots well if cgroup_disable=memory ? Thanks, -Kame -- 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