From owner-freebsd-stable Fri Dec 21 7:10:57 2001 Delivered-To: freebsd-stable@freebsd.org Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by hub.freebsd.org (Postfix) with ESMTP id E3FF837B405 for ; Fri, 21 Dec 2001 07:10:49 -0800 (PST) Received: (from wkb@localhost) by freebie.xs4all.nl (8.11.6/8.11.6) id fBLFAb824918; Fri, 21 Dec 2001 16:10:37 +0100 (CET) (envelope-from wkb) Date: Fri, 21 Dec 2001 16:10:37 +0100 From: Wilko Bulte To: Matthew Emmerton Cc: Ross Lippert , freebsd-stable@FreeBSD.ORG Subject: Re: DVD kills system Message-ID: <20011221161037.A24896@freebie.xs4all.nl> References: <200112211404.GAA26213@eskimo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from matt@gsicomp.on.ca on Fri, Dec 21, 2001 at 09:26:21AM -0500 X-OS: FreeBSD 4.4-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Dec 21, 2001 at 09:26:21AM -0500, Matthew Emmerton wrote: No, lots of DVDs carry iso9660 filesystems. I have mounted a few, though not recently, a few months back. It *could* be a DVD with a slightly warped iso9660 on it of course. I think you will need to catch a kernel dump. I'll try to mount a DVD to see what gives here Wilko > I thought that DVDs used a different filesystem format (UDF) than regular > CDs (ISO9660). If this is true, then what you're probably seeing is > "correct" behaviour - the ISO9660 code is reading stuff from the CD that > is nonsensical (in an ISO9660 context) and it's crashing - hard. > > -- > Matthew Emmerton || matt@gsicomp.on.ca > GSI Computer Services || http://www.gsicomp.on.ca > > On Fri, 21 Dec 2001, Ross Lippert wrote: > > > > > This is the first time I have used my DVD player on a DVD and not > > a CD. On CDs there has never been a problem. However, I put in > > a DVD movie disk, mount it > > > > mount -o nosuid,nodev -t cd9660 /dev/acd0c /dvdrom > > > > and then > > > > cd /dvdrom/video_ts > > > > ls > > which works, but then > > > > file * > > kills me. It gives output for a couple files, then hangs for a little bit > > and then -- ka-boom! reboot! > > > > Pretty frightening when a read operation on a filesystem can do that. > > It happened twice in a row for the two times I tried it, so, by induction, > > I think it will consistently happen, though I am reluctant to try this > > often. > > > > Looking at /var/log/messages gives me no clue at all. Is there another > > log which would be more disagnostic for this? > > > > I don't have another DVD to try this out with, currently. > > > > Should I just wipe the fuzz off and try again? > > > > Attached is my dmesg. -- | / o / /_ _ email: wilko@FreeBSD.org |/|/ / / /( (_) Bulte Arnhem, The Netherlands To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message