From owner-freebsd-scsi Tue Sep 8 00:53:36 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id AAA18671 for freebsd-scsi-outgoing; Tue, 8 Sep 1998 00:53:36 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from panzer.plutotech.com (panzer.plutotech.com [206.168.67.125]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id AAA18656 for ; Tue, 8 Sep 1998 00:53:32 -0700 (PDT) (envelope-from ken@panzer.plutotech.com) Received: (from ken@localhost) by panzer.plutotech.com (8.9.1/8.8.5) id BAA00433; Tue, 8 Sep 1998 01:53:18 -0600 (MDT) From: "Kenneth D. Merry" Message-Id: <199809080753.BAA00433@panzer.plutotech.com> Subject: Re: CAM crashes In-Reply-To: from Daniel O'Connor at "Sep 8, 98 05:12:56 pm" To: doconnor@gsoft.com.au (Daniel O'Connor) Date: Tue, 8 Sep 1998 01:53:17 -0600 (MDT) Cc: freebsd-scsi@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28s (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Daniel O'Connor wrote... > > On 08-Sep-98 Kenneth D. Merry wrote: > > Believe it or not, I just reproduced the panic on a -current SMP > > CAM box. The stack trace is almost identical. > Wohoo! :) Well, it's a lucky thing I've got a serial console hooked up to the machine. :) > > It really looks like a problem with shared memory, or perhaps > > cdda2wav's use of it, rather than a CAM problem. Notice the stack trace > > comes from the shared memory code, not from anything in the CAM code. > Yeah, I haven't had the opportunity to test cdda2wav under a non-CAM system, so > I don't know if this is a CAM related problem or not. I would be interested to see if you can reproduce it with a non-CAM system. If you can't reproduce it, that's not necessarily an indication that it's CAM's fault -- it could be that CAM exacerbates the problem. If you can reproduce it, then it's clearly a generic FreeBSD problem, most likely with the shared memory/VM code. In the mean time, if you want to dump audio off a CD, I'd suggest using tosha. It has worked fine for me, and I've used it to dump tracks off CDs which I later burned onto CD-Rs using cdrecord. The tosha and cdrecord ports are available here: ftp://ftp.kdm.org/pub/FreeBSD/cam Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message