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 CDB3D6B0044 for ; Fri, 9 Jan 2009 01:01:13 -0500 (EST) Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28smtp04.in.ibm.com (8.13.1/8.13.1) with ESMTP id n09617F9031300 for ; Fri, 9 Jan 2009 11:31:07 +0530 Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id n095xQ4Z4112590 for ; Fri, 9 Jan 2009 11:29:26 +0530 Received: from d28av05.in.ibm.com (loopback [127.0.0.1]) by d28av05.in.ibm.com (8.13.1/8.13.3) with ESMTP id n09617px023593 for ; Fri, 9 Jan 2009 17:01:07 +1100 Date: Fri, 9 Jan 2009 11:31:09 +0530 From: Balbir Singh Subject: Re: [RFC][PATCH 2/4] memcg: fix error path of mem_cgroup_move_parent Message-ID: <20090109060109.GG9737@balbir.in.ibm.com> Reply-To: balbir@linux.vnet.ibm.com References: <20090108190818.b663ce20.nishimura@mxp.nes.nec.co.jp> <20090108191445.cd860c37.nishimura@mxp.nes.nec.co.jp> <20090109051522.GC9737@balbir.in.ibm.com> <20090109143346.5ad2b971.nishimura@mxp.nes.nec.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <20090109143346.5ad2b971.nishimura@mxp.nes.nec.co.jp> Sender: owner-linux-mm@kvack.org To: Daisuke Nishimura Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kamezawa.hiroyu@jp.fujitsu.com, lizf@cn.fujitsu.com, menage@google.com List-ID: * Daisuke Nishimura [2009-01-09 14:33:46]: > > Looks good to me, just out of curiousity how did you catch this error? > > Through review or testing? > > > Through testing. > > I got "an unremovable directory" sometimes, which had res.usage remained > even after all lru lists had become empty, or which had ref counts remained > even after res.usage had become 0. > And tracked down the cause of this problem . > Thanks, Acked-by: Balbir Singh -- 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