From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id 4E9616B005A for ; Tue, 29 Sep 2009 13:05:19 -0400 (EDT) Received: from d28relay03.in.ibm.com (d28relay03.in.ibm.com [9.184.220.60]) by e28smtp05.in.ibm.com (8.14.3/8.13.1) with ESMTP id n8TH6oag000896 for ; Tue, 29 Sep 2009 22:36:50 +0530 Received: from d28av02.in.ibm.com (d28av02.in.ibm.com [9.184.220.64]) by d28relay03.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id n8TH6neb2863254 for ; Tue, 29 Sep 2009 22:36:49 +0530 Received: from d28av02.in.ibm.com (loopback [127.0.0.1]) by d28av02.in.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id n8TH6nc4015361 for ; Wed, 30 Sep 2009 03:06:49 +1000 Date: Tue, 29 Sep 2009 22:36:32 +0530 From: Balbir Singh Subject: Re: [PATCH 1/2] memcg: some modification to softlimit under hierarchical memory reclaim. Message-ID: <20090929170632.GA3071@balbir.in.ibm.com> Reply-To: balbir@linux.vnet.ibm.com References: <20090929150141.0e672290.kamezawa.hiroyu@jp.fujitsu.com> <20090929061132.GA498@balbir.in.ibm.com> <20090929183321.3d4fbc1d.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20090929183321.3d4fbc1d.kamezawa.hiroyu@jp.fujitsu.com> Sender: owner-linux-mm@kvack.org To: KAMEZAWA Hiroyuki Cc: "linux-mm@kvack.org" , "akpm@linux-foundation.org" , "nishimura@mxp.nes.nec.co.jp" List-ID: * KAMEZAWA Hiroyuki [2009-09-29 18:33:21]: > On Tue, 29 Sep 2009 11:41:32 +0530 > Balbir Singh wrote: > > > * KAMEZAWA Hiroyuki [2009-09-29 15:01:41]: > > > > > No major changes in this patch for 3 weeks. > > > While testing, I found a few css->refcnt bug in softlimit.(and posted patches) > > > But it seems no more (easy) ones. > > > > > > > Kamezawa-San, this worries me, could you please confirm if you are > > able to see this behaviour without your patches applied as well? I am > > doing some more stress tests on my side. > > > I found an easy way to reprocue. And yes, it can happen without this series. > Kamezawa-San, Yes, your fix does work and the machine no longer gives a BUG_ON()/WARN_ON(). Thanks for the analysis and fix. -- Balbir -- 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