From owner-freebsd-current@FreeBSD.ORG Tue Jan 20 22:44:45 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A9D62106564A for ; Tue, 20 Jan 2009 22:44:45 +0000 (UTC) (envelope-from hartzell@alerce.com) Received: from merlin.alerce.com (merlin.alerce.com [64.62.142.94]) by mx1.freebsd.org (Postfix) with ESMTP id 919FD8FC08 for ; Tue, 20 Jan 2009 22:44:45 +0000 (UTC) (envelope-from hartzell@alerce.com) Received: from merlin.alerce.com (localhost [127.0.0.1]) by merlin.alerce.com (Postfix) with ESMTP id 43E3933C62; Tue, 20 Jan 2009 14:44:45 -0800 (PST) Received: from merlin.alerce.com (localhost [127.0.0.1]) by merlin.alerce.com (Postfix) with ESMTP id AD4C233C5B; Tue, 20 Jan 2009 14:44:44 -0800 (PST) From: George Hartzell MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <18806.21468.277333.243611@almost.alerce.com> Date: Tue, 20 Jan 2009 14:44:44 -0800 To: Jaakko Heinonen In-Reply-To: <20090110084012.GA1979@a91-153-125-115.elisa-laajakaista.fi> References: <1de79840901080935s130f647r36815df468a9220b@mail.gmail.com> <18791.65426.128568.526167@almost.alerce.com> <20090110084012.GA1979@a91-153-125-115.elisa-laajakaista.fi> X-Mailer: VM 7.19 under Emacs 22.1.50.1 X-Virus-Scanned: ClamAV using ClamSMTP X-Mailman-Approved-At: Tue, 20 Jan 2009 23:01:42 +0000 Cc: Michael Proto , Alexander Best , freebsd-current@freebsd.org, George Hartzell Subject: Re: patch to fix burncd bug X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: hartzell@alerce.com List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Jan 2009 22:44:45 -0000 Jaakko Heinonen writes: > > Hi, > > On 2009-01-09, George Hartzell wrote: > > I have a mac pro running 7.1-PRERELEASE system (not sure when I last > > updated it) on which burncd seems to successfully burn the data but > > then fails while fixating. > > > > I applied the above patch by hand, with a little bit of fuzz, and now > > it fails to burn the data but fixating no longer bombs out. > > It can't see how it could be possible that the patch (correctly applied) > causes this. Are you sure that this is repeatable behavior and burning > always works with an unpatched kernel? Does dmesg show any error > messages after failed burn? Hmmmm. I upgraded the machine to 7.1-STABLE and now the patch applies cleanly (using 'patch'). I still get the behaviour that I described above. So I backed out the patch, rebuilt, and it turns out that I see the same behaviour on the stock kernel. "It didn't use to do that. (tm)" There's a line in dmesg that says: acd0: TIMEOUT - WRITE_BIG retrying (1 retry left) I have a feeling I've seen a thread about cd drives and BIG, but I can't find it online or in the PR's. I see some recent discussion or READ_BIG, but no conclusion. This is with the stock DVD drive in a Mac PRO, dmesg reports it to be acd0: DVDR at ata2-master UDMA66 g.