Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261305AbTKLBOj (ORCPT ); Tue, 11 Nov 2003 20:14:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261309AbTKLBOj (ORCPT ); Tue, 11 Nov 2003 20:14:39 -0500 Received: from fw.osdl.org ([65.172.181.6]:27815 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261305AbTKLBOi (ORCPT ); Tue, 11 Nov 2003 20:14:38 -0500 Date: Tue, 11 Nov 2003 17:14:30 -0800 (PST) From: Linus Torvalds To: Pascal Schmidt cc: Jens Axboe , Subject: Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1076 Lines: 28 On Wed, 12 Nov 2003, Pascal Schmidt wrote: > > My guess would be that an MO drive needs a different way to find out > the capacity than a CD-ROM. After all, when using ide-scsi, it is the > sd driver and not sr that handles the drive. The rest of the problems > could be due to the wrong capacity information? Yes. That would explain a lot. The ide-scsi thing never uses "cdrom_get_last_written" crud. It just uses the regular READ_CAPACITY command (0x25). Which is what ide-cd.c will fall back to as well ("cdrom_read_capacity()") but I think it should _start_ with that rather than fall back on it. That's the simple case, after all. Does it work if you change the order of those two things in ide-cd.c (or just remove the call to "cdrom_get_last_written()" entirely, so that it always just does the sane thing). Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/