From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759986AbYGRQ1J (ORCPT ); Fri, 18 Jul 2008 12:27:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755320AbYGRQ0y (ORCPT ); Fri, 18 Jul 2008 12:26:54 -0400 Received: from [208.74.158.172] ([208.74.158.172]:54603 "EHLO ns3.lanforge.com" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755255AbYGRQ0x (ORCPT ); Fri, 18 Jul 2008 12:26:53 -0400 X-Greylist: delayed 2507 seconds by postgrey-1.27 at vger.kernel.org; Fri, 18 Jul 2008 12:26:53 EDT Message-ID: <4880BA7A.3020909@candelatech.com> Date: Fri, 18 Jul 2008 08:44:58 -0700 From: Ben Greear Organization: Candela Technologies User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [BUG, NET] deadlock tearing down a bridged interface References: <20080718073724.GA5802@disturbed> In-Reply-To: <20080718073724.GA5802@disturbed> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dave Chinner wrote: > Folks, > > I just deadlocked networking on a 2.6.24 kernel. Basically I > was trying to restart the bridge interface I use for UML sessions > because it wasn't passing packets. This happens occasionally > when I leave a UML session too long in gdb, so I bounced the > bridge to get it working again. > We have been chasing a refcount bug in 2.6.25 that only happens when IPv6 module is loaded. If you are not actually using ipv6, try removing it's module from your /lib/modules/* directory and see if that fixes your problem. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com