From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932584AbXAQS2n (ORCPT ); Wed, 17 Jan 2007 13:28:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932614AbXAQS2n (ORCPT ); Wed, 17 Jan 2007 13:28:43 -0500 Received: from mx27.mail.ru ([194.67.23.64]:24296 "EHLO mx27.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932584AbXAQS2m (ORCPT ); Wed, 17 Jan 2007 13:28:42 -0500 From: Andrey Borzenkov To: Alan Stern Subject: Re: [linux-usb-devel] 2.6.20-rc5: BUG: lock held at task exit time! (pm_mutex){--..}, at: [] enter_state+0x3f/0x170 Date: Wed, 17 Jan 2007 21:28:34 +0300 User-Agent: KMail/1.9.5 Cc: linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org References: In-Reply-To: Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200701172128.38545.arvidjaar@mail.ru> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tuesday 16 January 2007 23:31, Alan Stern wrote: > On Tue, 16 Jan 2007, Andrey Borzenkov wrote: > > I have Toshiba Portege 4000 that almost always hangs dead resuming from > > STR. This was better before 2.6.18, since then STR is unusable. Sometimes > > it manages to resume; yesterday I got on console and in dmesg: > > > > ===================================== > > [ BUG: lock held at task exit time! ] > > - ------------------------------------- > > echo/28793 is exiting with locks still held! > > 1 lock held by echo/28793: > > #0: (pm_mutex){--..}, at: [] enter_state+0x3f/0x170 > > > > stack backtrace: > > [] show_trace_log_lvl+0x1a/0x30 > > [] show_trace+0x12/0x20 > > [] dump_stack+0x16/0x20 > > [] debug_check_no_locks_held+0x87/0x90 > > [] do_exit+0x4db/0x820 > > [] do_group_exit+0x29/0x70 > > [] sys_exit_group+0xf/0x20 > > [] sysenter_past_esp+0x5f/0x99 > > ======================= > > Have you tried using 2.6.19? There was a bug which got fixed in that > release. > Yes I did. It had the same problem. Sorry for posting to wrong list, but I hit USB pm_mutex before other one. - -andrey -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFFrmrWR6LMutpd94wRAr6eAKCVhFTsgtrrxlPWcY/kCa6hAq8sWACgkUrK SA8GeytfzwD38IOrVCIkAXU= =Me0j -----END PGP SIGNATURE-----