From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756534AbZCQWCz (ORCPT ); Tue, 17 Mar 2009 18:02:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757778AbZCQWCf (ORCPT ); Tue, 17 Mar 2009 18:02:35 -0400 Received: from turing-police.cc.vt.edu ([128.173.14.107]:55936 "EHLO turing-police.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758067AbZCQWCe (ORCPT ); Tue, 17 Mar 2009 18:02:34 -0400 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.2 To: Andrew Morton Cc: jkosina@suse.cz, gregkh@suse.de, linux-kernel@vger.kernel.org, Lai Jiangshan , Oleg Nesterov , Oliver Neukum Subject: Re: 29-rc-mmotm - HID/USB wedge w/ WARNING: at kernel/workqueue.c:371 In-Reply-To: Your message of "Tue, 17 Mar 2009 13:54:24 PDT." <20090317135424.9151c4f8.akpm@linux-foundation.org> From: Valdis.Kletnieks@vt.edu References: <6648.1237271589@turing-police.cc.vt.edu> <20090317135424.9151c4f8.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1237327272_3640P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Tue, 17 Mar 2009 18:01:12 -0400 Message-ID: <37742.1237327272@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1237327272_3640P Content-Type: text/plain; charset=us-ascii On Tue, 17 Mar 2009 13:54:24 PDT, Andrew Morton said: > It's an error in workqueue-avoid-recursion-in-run_workqueue.patch, methinks. Thanks for the diagnosis - I got as far as realizing that any backtrace that included flush_cpu_workqueue() and worker_thread() had a problem and got stuck there. I'm going to throw some printk's into the usb_reset_device() area and related code, and see if I can figure out why a cooling pad was able to trigger it (was seeing a hit every 90 mins or so at home, have been up over 7 hours straight in the office). I'll let somebody who understands the code better figure out what should be happening once we get into that reset situation. --==_Exmh_1237327272_3640P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFJwB2ocC3lWbTT17ARAnGbAJ4lZaX9JKJtCtgbvzqZE2DptqDajwCguNI/ vB32DQZEwnzvzGYyP5Z1SNI= =X+TH -----END PGP SIGNATURE----- --==_Exmh_1237327272_3640P--