From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755258Ab1J1GMm (ORCPT ); Fri, 28 Oct 2011 02:12:42 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:60016 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754918Ab1J1GMl (ORCPT ); Fri, 28 Oct 2011 02:12:41 -0400 Message-ID: <4EAA4799.1020505@cn.fujitsu.com> Date: Fri, 28 Oct 2011 14:11:37 +0800 From: Wanlong Gao Reply-To: gaowanlong@cn.fujitsu.com Organization: FNST User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110322 Red Hat/3.1.9-3.el6_0 Thunderbird/3.1.9 MIME-Version: 1.0 To: Bob Liu CC: "linux-kernel@vger.kernel.org" , linux-fsdevel@vger.kernel.org, Linux-MM Subject: Re: [possible deadlock][3.1.0-g138c4ae] possible circular locking dependency detected References: <4EAA2492.3020907@cn.fujitsu.com> <4EAA4263.2090809@cn.fujitsu.com> In-Reply-To: X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2011-10-28 14:10:42, Serialize by Router on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2011-10-28 14:10:43, Serialize complete at 2011-10-28 14:10:43 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/28/2011 02:02 PM, Bob Liu wrote: >> >> >> Oh, it looks like can fix this bug, but I also can't reproduce it whether with or without this patch. >> > > Make sure CONFIG_DEBUG_LOCK_ALLOC was set. > Yeah, certainly, if not, the dmesg can't appear anyway. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wanlong Gao Subject: Re: [possible deadlock][3.1.0-g138c4ae] possible circular locking dependency detected Date: Fri, 28 Oct 2011 14:11:37 +0800 Message-ID: <4EAA4799.1020505@cn.fujitsu.com> References: <4EAA2492.3020907@cn.fujitsu.com> <4EAA4263.2090809@cn.fujitsu.com> Reply-To: gaowanlong@cn.fujitsu.com Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: "linux-kernel@vger.kernel.org" , linux-fsdevel@vger.kernel.org, Linux-MM To: Bob Liu Return-path: In-Reply-To: Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org On 10/28/2011 02:02 PM, Bob Liu wrote: >> >> >> Oh, it looks like can fix this bug, but I also can't reproduce it whether with or without this patch. >> > > Make sure CONFIG_DEBUG_LOCK_ALLOC was set. > Yeah, certainly, if not, the dmesg can't appear anyway. -- 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