Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262784AbTKEJyR (ORCPT ); Wed, 5 Nov 2003 04:54:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262787AbTKEJyR (ORCPT ); Wed, 5 Nov 2003 04:54:17 -0500 Received: from pop.gmx.de ([213.165.64.20]:30942 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S262784AbTKEJyB (ORCPT ); Wed, 5 Nov 2003 04:54:01 -0500 X-Authenticated: #4512188 Message-ID: <3FA8C916.3060702@gmx.de> Date: Wed, 05 Nov 2003 10:55:34 +0100 From: "Prakash K. Cheemplavam" User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031102 X-Accept-Language: de-de, de, en-us, en MIME-Version: 1.0 To: Jens Axboe CC: linux-kernel@vger.kernel.org Subject: Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt References: <3FA69CDF.5070908@gmx.de> <20031105084007.GZ1477@suse.de> In-Reply-To: <20031105084007.GZ1477@suse.de> X-Enigmail-Version: 0.76.7.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1592 Lines: 52 Jens Axboe wrote: > On Mon, Nov 03 2003, Prakash K. Cheemplavam wrote: > >> Hi, >> >> well I am using k3b0.10.1 and either choosing cdrdao or cdrecord in DAO mode to burn the cd ends up in non-bit identical copies, wheres ion TAO (atleast with my 10x CD-RW I tested) the copy succeded. I tried several times, and always got this issue. >> >> bash-2.05b$ md5sum livecd-2.6_10-23-2003.iso >> f73f3a74239dfe94b322b85fd14a306e livecd-2.6_10-23-2003.iso >> >> TAO: >> bash-2.05b$ md5sum /dev/cdroms/cdrom1 >> f73f3a74239dfe94b322b85fd14a306e /dev/cdroms/cdrom1 >> >> DAO: >> bash-2.05b$ md5sum /dev/cdroms/cdrom1 >> 09e7e2a51af4c64685831513fbac18c2 /dev/cdroms/cdrom1 > > > > Could you please try and cmp the two images, finding out how big the > corrupted chunks are and what kind of data they contain? After some further investigation I found out, that the data is NOT corrupted, but in a way truncated in DAO mode: When I read out the image from the CD-RW drive, about 5kbyte are missing at the end (and doing several burn, it is always the same amount). Strange enough if I read the DAO burnt disk out by my DVD-ROM, the image can be read out completely! Can you understand this behaviour? I don't think it is a problem of my burner, but rather of the atapi driver? Cheers, Prakash -- =-----= |=-P-=| =-----= - 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/