From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262261AbUBXPsx (ORCPT ); Tue, 24 Feb 2004 10:48:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262286AbUBXPsx (ORCPT ); Tue, 24 Feb 2004 10:48:53 -0500 Received: from moutng.kundenserver.de ([212.227.126.173]:6339 "EHLO moutng.kundenserver.de") by vger.kernel.org with ESMTP id S262261AbUBXPsu (ORCPT ); Tue, 24 Feb 2004 10:48:50 -0500 Message-ID: <403B7245.1000208@t-st.org> Date: Tue, 24 Feb 2004 16:48:21 +0100 From: Tillmann Steinbrecher User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de-DE; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: de-de, de-at, de, en-us, en MIME-Version: 1.0 To: Ben Collins CC: linux-kernel@vger.kernel.org Subject: Re: PROBLEM: 2.6.3 + external firewire dvd writer - frequent freezes Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: kundenserver.de abuse@kundenserver.de auth:440c24a95efadc9d8e1374cf9e681760 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, > > I'm using an external FireWire DVD writer (Plextor 708 in case w/Oxford > > 911 chipset). This was working fine until kernel 2.6.2. > > > > Since I upgraded to 2.6.3, it frequently happens that the system totally > > freezes when trying to write a DVD. It's really a hard crash, no mouse > > movement, no ping on the network. Reset required. > > > > It doesn't happen each time I try to burn a DVD, but in about 20% the > > cases. So basically the writer is unusable with 2.6.3 > Can you enable spinlock debug so we can see if this is a race condition > somewhere? Thanks for your reply. What option do I have to enable exactly? CONFIG_DEBUG_SPINLOCK_SLEEP? Anything else required? Also, how do I get access to the results of the debugging? I mean, it's really a hard crash, no messages visible (that is, when running X), no logging to syslog, etc. Also - can this possibly be related to the "growisofs problem with 2.6.3" that was discussed at various places (and a patch was posted too) - I have this problem, too, since the upgrade to 2.6.3. Just in case you havent followed the discussion, here are two links: http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=utf-8&selm=c153vj%242vep%241%40FreeBSD.csie.NCTU.edu.tw http://groups.google.com/groups?q=growisofs+2.6.3&hl=en&lr=&ie=UTF-8&oe=utf-8&selm=linux.scsi.20040221112550.6aec57eb.mike%40it-loops.com&rnum=4 Right now I can't do tests, since I'm away from home, and if I trigger a crash from remote I'm in trouble since I still need the machine; but I'm willing to test patches as soon as I'm back. bye, Tillmann