From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754462AbXDYFPy (ORCPT ); Wed, 25 Apr 2007 01:15:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754567AbXDYFPy (ORCPT ); Wed, 25 Apr 2007 01:15:54 -0400 Received: from nz-out-0506.google.com ([64.233.162.230]:3651 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754462AbXDYFPx (ORCPT ); Wed, 25 Apr 2007 01:15:53 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=bV6AKWgnJ9I7tu1qoLTY3yCArp21js/Vw376EPsdWexbHgvFMSVKS/RWAqAOA/MkFp/+EfR1hGl/Qo/nsf2nEdzqCH6yzHXaXBDZ0MgLnp8OK4E/qVRaprzbtysKiVTSqwPzAtibgqRHGp/ep/zyl7koN2L2JGXFjCmRxCZlSLQ= Message-ID: Date: Tue, 24 Apr 2007 22:15:50 -0700 From: "Miles Lane" To: "Andrew Morton" , LKML , htejun@gmail.com Subject: 2.6.21-rc7-mm1 + sysfs-oops-workaround.patch -- INFO: possible recursive locking detected MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org [ 59.677312] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory [ 59.688633] NFSD: starting 90-second grace period [ 60.221454] [ 60.221456] ============================================= [ 60.221461] [ INFO: possible recursive locking detected ] [ 60.221464] 2.6.21-rc7-mm1 #53 [ 60.221466] --------------------------------------------- [ 60.221469] S20powernowd/3584 is trying to acquire lock: [ 60.221472] (&sd->s_active){----}, at: [] sysfs_hash_and_remove+0x91/0x10e [ 60.221486] [ 60.221487] but task is already holding lock: [ 60.221489] (&sd->s_active){----}, at: [] sysfs_write_file+0xb9/0x14a [ 60.221496] [ 60.221497] other info that might help us debug this: [ 60.221499] 4 locks held by S20powernowd/3584: [ 60.221501] #0: (&sd->s_active){----}, at: [] sysfs_write_file+0xb9/0x14a [ 60.221508] #1: (&sd->s_active){----}, at: [] sysfs_write_file+0xcb/0x14a [ 60.221515] #2: (&per_cpu(cpu_policy_rwsem, cpu)){--..}, at: [] lock_policy_rwsem_write+0x20/0x37 [ 60.221524] #3: (userspace_mutex){--..}, at: [] mutex_lock+0x1f/0x23 [ 60.221534] [ 60.221535] stack backtrace: [ 60.221538] [] show_trace_log_lvl+0x1a/0x30 [ 60.221543] [] show_trace+0x12/0x14 [ 60.221547] [] dump_stack+0x16/0x18 [ 60.221551] [] __lock_acquire+0x12e/0xb4c [ 60.221557] [] lock_acquire+0x68/0x82 [ 60.221561] [] down_write+0x3a/0x53 [ 60.221567] [] sysfs_hash_and_remove+0x91/0x10e [ 60.221571] [] sysfs_remove_file+0x10/0x12 [ 60.221575] [] cpufreq_governor_userspace+0x10c/0x1dc [ 60.221579] [] __cpufreq_governor+0x9c/0xd0 [ 60.221583] [] __cpufreq_set_policy+0x171/0x209 [ 60.221587] [] store_scaling_governor+0x14d/0x184 [ 60.221591] [] store+0x3e/0x60 [ 60.221594] [] sysfs_write_file+0x11e/0x14a [ 60.221599] [] vfs_write+0x90/0x119 [ 60.221605] [] sys_write+0x3d/0x61 [ 60.221609] [] sysenter_past_esp+0x5f/0x99 [ 60.221613] ======================= [ 60.763809] Clocksource tsc unstable (delta = -75646443 ns)