From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755277AbYFYJqp (ORCPT ); Wed, 25 Jun 2008 05:46:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753064AbYFYJqi (ORCPT ); Wed, 25 Jun 2008 05:46:38 -0400 Received: from bu3sch.de ([62.75.166.246]:44454 "EHLO vs166246.vserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752439AbYFYJqh (ORCPT ); Wed, 25 Jun 2008 05:46:37 -0400 From: Michael Buesch To: Jan Kara Subject: Re: Oops when using growisofs Date: Wed, 25 Jun 2008 11:46:29 +0200 User-Agent: KMail/1.9.6 (enterprise 0.20070907.709405) Cc: Andrew Morton , Arnd Bergmann , linux-kernel , Jens Axboe References: <200806221818.24372.mb@bu3sch.de> <200806242039.18755.mb@bu3sch.de> <20080625093700.GB15865@duck.suse.cz> In-Reply-To: <20080625093700.GB15865@duck.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200806251146.30142.mb@bu3sch.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 25 June 2008 11:37:00 Jan Kara wrote: > > Yeah the IO error is the trigger. > > I noticed that it had obvious troubles accessing the DVD that was in the drive. > > It sweeped over it for several seconds, then hung the system for 2 or 3 seconds > > and then oopsed. But after that everything continued to work as usual. > > (Except kded of course) > Hmm, by "accessing" do you mean that you've mounted the burned DVD and when > browsing it the IO error and the oops occured or that IO error happened > when burning? It is important because in the first case i_blkbits would be > taken from some ISOFS inode desribing some file while in the second case > i_blkbits are from the inode of the device... I don't know. kded, which caused the oops, is always running. It is a KDE daemon that polls device state and so on. So yeah, it might have accessed the drive while growisofs was writing to it. However with "accessing" I mean the DVD drive motor was spinning up and down and the laser lens was moving like crazy. The sound that happens, if you put a completely scratched DVD into the drive and it is unable to make sense of it. However, this was not scratched. It was a new DVD with one session on it that I just burnt 5 minutes before that. So I wanted to append another session to it and it crashed and resulted in IO errors in growisofs. -- Greetings Michael.