From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030749AbXDJOmA (ORCPT ); Tue, 10 Apr 2007 10:42:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030759AbXDJOmA (ORCPT ); Tue, 10 Apr 2007 10:42:00 -0400 Received: from mtagate6.de.ibm.com ([195.212.29.155]:49272 "EHLO mtagate6.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030749AbXDJOl6 (ORCPT ); Tue, 10 Apr 2007 10:41:58 -0400 Date: Tue, 10 Apr 2007 16:44:16 +0200 From: Cornelia Huck To: Tejun Heo Cc: gregkh@suse.de, maneesh@in.ibm.com, dmitry.torokhov@gmail.com, oneukum@suse.de, rpurdie@rpsys.net, James.Bottomley@SteelEye.com, stern@rowland.harvard.edu, linux-kernel@vger.kernel.org Subject: Re: [PATCHSET #master] sysfs: make sysfs disconnect immediately on deletion, take 2 Message-ID: <20070410164416.63469474@gondolin.boeblingen.de.ibm.com> In-Reply-To: <11760923261269-git-send-email-htejun@gmail.com> References: <11760923261269-git-send-email-htejun@gmail.com> Organization: IBM Deutschland Entwicklung GmbH X-Mailer: Claws Mail 2.8.0 (GTK+ 2.8.20; i486-pc-linux-gnu) X-Legal: IBM Deutschland Entwicklung GmbH Vorsitzender des Aufsichtsrats: Johann Weihen =?ISO-8859-15?Q?Gesch=E4ftsf=FChrung:?= Herbert Kircher Sitz der Gesellschaft: =?ISO-8859-15?Q?B=F6blingen?= Registergericht: Amtsgericht Stuttgart, HRB 243294 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 9 Apr 2007 13:18:46 +0900, Tejun Heo wrote: > With all the patches applied, the same test used in the last take ran > 9+hrs without any problem. I get the following on startup: ===================================== [ BUG: bad unlock balance detected! ] ------------------------------------- start_udev/197 is trying to release lock (&sd->s_active) at: [<0000000000209024>] release_sysfs_dirent+0x8c/0x118 but there are no more locks to release! other info that might help us debug this: no locks held by start_udev/197. stack backtrace: 000000001ea4fad8 0000000000000002 0000000000000000 000000001ea4fbe8 000000001ea4fb60 00000000004bebf6 00000000004bebf6 0000000000103854 0000000000000000 0000000000000000 0000000000000000 0000000000602cb0 0000000000000000 000000001ea4fba8 000000001ea4fb48 000000000000000e 000000000042a810 000000000010389e 000000001ea4fb48 000000001ea4fb98 Call Trace: ([<00000000001037f4>] show_trace+0xf8/0xfc) [<00000000001038ce>] show_stack+0xd6/0x100 [<0000000000103926>] dump_stack+0x2e/0x3c [<0000000000153c98>] print_unlock_inbalance_bug+0x114/0x138 [<0000000000156dce>] lock_release+0x166/0x1bc [<000000000014f8c2>] up_write+0x3e/0x98 [<0000000000209024>] release_sysfs_dirent+0x8c/0x118 [<000000000020912e>] sysfs_dir_close+0x7e/0x90 [<00000000001a7088>] __fput+0xe4/0x20c [<00000000001a71fc>] fput+0x4c/0x5c [<00000000001a3aa4>] filp_close+0x7c/0xb4 [<00000000001a3fcc>] sys_close+0xdc/0x128 [<00000000001107c8>] sysc_noemu+0x10/0x16 [<0000020000107dd0>] 0x20000107dd0