From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: pata_via "frozen" DVD drive (TSSTcorp SN-S083A on EPIA EX15000) Date: Wed, 15 Oct 2008 18:49:27 +0900 Message-ID: <48F5BCA7.7050503@kernel.org> References: <338a6b6d0810140230t16f8da53y6facbcee174cad3@mail.gmail.com> <48F598FA.9060500@kernel.org> <338a6b6d0810150244w2ef4e0a4q482c866113aa6595@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:40431 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751969AbYJOJvY (ORCPT ); Wed, 15 Oct 2008 05:51:24 -0400 In-Reply-To: <338a6b6d0810150244w2ef4e0a4q482c866113aa6595@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jonas Jensen Cc: linux-ide@vger.kernel.org Jonas Jensen wrote: > On 15/10/2008, Tejun Heo wrote: >> The drive times out SEND_OPC and then never comes back. The command >> is non-data command which just tells the drive to perform calibration, >> so there's nothing much the driver can do wrong about it. It looks >> like the drive could have hardware problem performing OPC. Can you >> test the drive under different operating system or different hardware >> configuration (different controller, different media, etc...)? > > Thank you for your reply, > > I tested the drive some more yesterday and found that it doesn't have > the same problem on CD-RW media. And the FujiFilm DVD-RW that causes > the problem it has no problem reading from. I'm not sure if it's just > that brand but it seems like it's a problem with the media. However, > it surprises me that bad media can cause the drive to fail into an > unrecoverable state. Looks like a cheap shitty device, atleast it > wasn't expensive :) Heh... For some reason, it doesn't surprise me too much. I've seen worse. :-P > I can test the device under different OS/controller if you feel like > you need that information. It pretty much looks like the drive going bonkers on the media it doesn't like, so if it's too much of a hassle, I think testing with different media should be good enough. Thanks. -- tejun