From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965398AbWJ2UTL (ORCPT ); Sun, 29 Oct 2006 15:19:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965400AbWJ2UTL (ORCPT ); Sun, 29 Oct 2006 15:19:11 -0500 Received: from einhorn.in-berlin.de ([192.109.42.8]:37035 "EHLO einhorn.in-berlin.de") by vger.kernel.org with ESMTP id S965398AbWJ2UTK (ORCPT ); Sun, 29 Oct 2006 15:19:10 -0500 X-Envelope-From: stefanr@s5r6.in-berlin.de Message-ID: <45450CA1.3000008@s5r6.in-berlin.de> Date: Sun, 29 Oct 2006 21:18:41 +0100 From: Stefan Richter User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.6) Gecko/20060730 SeaMonkey/1.0.4 MIME-Version: 1.0 To: linux1394-devel@lists.sourceforge.net CC: Ben Collins , Greg KH , linux-kernel@vger.kernel.org, Dave Jones Subject: Re: [rfc patch] ieee1394: nodemgr: revise semaphore protection of driver core data References: In-Reply-To: X-Enigmail-Version: 0.94.1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I wrote on 2006-10-22: [I wrote on 2006-10-22: || This may or may not be related to || https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=188140 || (System freezes while hald is accessing FireWire sysfs data.) ] No, it's certainly unrelated. In the meantime the problem was also encountered if the same device was connected via USB. > # modprobe -r ohci1394 > Segmentation fault ... > Oct 22 17:24:08 shuttle kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 0000002c ... > Oct 22 17:24:08 shuttle kernel: EIP is at klist_del+0x14/0x50 ... Since then the oops did never happen under 2.6.18.1 plus this patch and other ieee1394 updates. I.e. that one was certainly a problem in 2.6.19-rc2. I will continue testing on 2.6.19-rcX. -- Stefan Richter -=====-=-==- =-=- ===-= http://arcgraph.de/sr/