Date: Tue, 20 Jan 2009 14:44:44 -0800 From: George Hartzell <hartzell@alerce.com> To: Jaakko Heinonen <jh@saunalahti.fi> Cc: Michael Proto <mike@jellydonut.org>, Alexander Best <alexbestms@math.uni-muenster.de>, freebsd-current@freebsd.org, George Hartzell <hartzell@alerce.com> Subject: Re: patch to fix burncd bug Message-ID: <18806.21468.277333.243611@almost.alerce.com> In-Reply-To: <20090110084012.GA1979@a91-153-125-115.elisa-laajakaista.fi> References: <permail-200901081713146981cf3e00002177-a_best01@message-id.uni-muenster.de> <1de79840901080935s130f647r36815df468a9220b@mail.gmail.com> <18791.65426.128568.526167@almost.alerce.com> <20090110084012.GA1979@a91-153-125-115.elisa-laajakaista.fi>
next in thread | previous in thread | raw e-mail | index | archive | help
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 <PIONEER DD-RW DR-112D/BC14> at ata2-master UDMA66 g.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?18806.21468.277333.243611>