From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755921Ab2CWHVn (ORCPT ); Fri, 23 Mar 2012 03:21:43 -0400 Received: from smtp-out002.kontent.com ([81.88.40.216]:35129 "EHLO smtp-out002.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751864Ab2CWHVl convert rfc822-to-8bit (ORCPT ); Fri, 23 Mar 2012 03:21:41 -0400 From: Oliver Neukum To: Stephen Warren Subject: Re: Regression due to: net/usbnet: avoid recursive locking in usbnet_stop() Date: Fri, 23 Mar 2012 08:21:51 +0100 User-Agent: KMail/1.13.5 (Linux/3.3.0-rc1-12-desktop+; KDE/4.4.4; x86_64; ; ) Cc: Sebastian Andrzej Siewior , "David S. Miller" , netdev@vger.kernel.org, linux-usb@vger.kernel.org, "linux-kernel@vger.kernel.org" , "Greg Kroah-Hartman" , Willy Tarreau , Alan Stern References: <4F6BAE34.7010805@wwwdotorg.org> In-Reply-To: <4F6BAE34.7010805@wwwdotorg.org> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Message-Id: <201203230821.51870.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Donnerstag, 22. März 2012, 23:56:52 schrieb Stephen Warren: > It looks like commit 4231d47e6fe69f061f96c98c30eaf9fb4c14b96d > "net/usbnet: avoid recursive locking in usbnet_stop()" causes a problem > for me. > > When I reboot or shutdown, I see the error spew below at least 50% of > the time. Reverting the above patch fixes this, at least for 10 reboot > attempts. The patch "usbnet: increase URB reference count before usb_unlink_urb" has just been applied. Could you test whether it fixes your proble? Regards Oliver