From owner-freebsd-current@FreeBSD.ORG  Tue Sep  2 10:57:16 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 3CED316A4BF; Tue,  2 Sep 2003 10:57:16 -0700 (PDT)
Received: from spider.deepcore.dk
	(cpe.atm2-0-56339.0x50c6aa0a.abnxx2.customer.tele.dk [80.198.170.10])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id ED4A343FE0; Tue,  2 Sep 2003 10:57:12 -0700 (PDT)
	(envelope-from sos@spider.deepcore.dk)
Received: from spider.deepcore.dk (localhost [127.0.0.1])
	by spider.deepcore.dk (8.12.9/8.12.9) with ESMTP id h82Hv2x6031089;
	Tue, 2 Sep 2003 19:57:02 +0200 (CEST)
	(envelope-from sos@spider.deepcore.dk)
Received: (from sos@localhost)
	by spider.deepcore.dk (8.12.9/8.12.9/Submit) id h82Hv18Z031088;
	Tue, 2 Sep 2003 19:57:01 +0200 (CEST)
From: Soren Schmidt <sos@spider.deepcore.dk>
Message-Id: <200309021757.h82Hv18Z031088@spider.deepcore.dk>
In-Reply-To: <20030902171056.GA52978@edgemaster.zombie.org>
To: Sean Kelly <smkelly@FreeBSD.ORG>
Date: Tue, 2 Sep 2003 19:57:01 +0200 (CEST)
X-Mailer: ELM [version 2.4ME+ PL99f (25)]
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=ISO-8859-1
X-mail-scanned: by DeepCore Virus & Spam killer v1.3
cc: freebsd-current@FreeBSD.ORG
cc: Bryan Liesner <bleez@comcast.net>
Subject: Re: ATAng - copying atapi CD
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 02 Sep 2003 17:57:16 -0000

It seems Sean Kelly wrote:
> > I have a perl script that dd's each audio track from an audio cd.  The
> > tracks are copied just fine until it gets about 75% into a 70 minute
> > cd.  dd then gets slower and slower until it seems to grind to a halt.
> > eventually, I'll set TIMEOUT messages and won't be able to kill the
> > current dd process.   Same results with DMA or PIO modes.  Shorter
> > (40 minute) CDs make it through the process OK.
> > 
> > Soren's crdao 1.1.7 for ATAng also grinds to a halt when copying a cd.
> 
> I saw this on ATAold as well, using cdparanoia, dd, dagrab, etc. I just
> chalked it up to my drive being stupid, though it did it on several audio
> discs. So, maybe it isn't me after all? I don't recall seeing any timeout
> messages, though.
> 
> And when I say ATAold, I mean ATAold from a week or so before the ATAng
> commit.

I just test a couble of audio CD's on tre different ATAPI drives, I didn't
see any slowdown at all.
I think this can be both because of the drive as well as the media..

-Søren