From: MaoXiaoyun Subject: RE: [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch Date: Tue, 27 Sep 2011 10:22:48 +0800 Message-ID: References: ,<20110906145347.GA4133@dumpdata.com>,,<4E666C86.5090707@goop.org>,,,,<20110926142808.GG4102@phenom.oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: 8bit Cc: , xen devel , , , To: Return-path: Received: from blu0-omc1-s18.blu0.hotmail.com ([65.55.116.29]:22856 "EHLO blu0-omc1-s18.blu0.hotmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751958Ab1I0CWt (ORCPT ); Mon, 26 Sep 2011 22:22:49 -0400 In-Reply-To: <20110926142808.GG4102@phenom.oracle.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: ---------------------------------------- > Date: Mon, 26 Sep 2011 10:28:08 -0400 > From: konrad.wilk@oracle.com > To: tinnycloud@hotmail.com > CC: linux-ext4@vger.kernel.org; xen-devel@lists.xensource.com; tytso@mit.edu; jack@suse.cz > Subject: Re: [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch > > On Sun, Sep 25, 2011 at 04:45:39PM +0800, MaoXiaoyun wrote: > > > > > > Hi: > > > > We met an ext4 BUG_ON in extents.c:1716 which crash kernel flush thread, and result in disk unvailiable. > > > > BUG details refer to: http://www.gossamer-threads.com/lists/xen/devel/217091?do=post_view_threaded > > > > Attached is the fix, verified in our env. > > So.. you are asking for this upstream git commit to be back-ported to 2.6.32, right? > The patch is for 2.6.39. It can be patched on 2.6.32 too. Thanks. > > > > Without this patch, more than 3 servers hit BUG_ON in our hundreds of servers every day. > > > > > > many thanks. > >