From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262972AbUEBKkY (ORCPT ); Sun, 2 May 2004 06:40:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262961AbUEBKkY (ORCPT ); Sun, 2 May 2004 06:40:24 -0400 Received: from bay18-f56.bay18.hotmail.com ([65.54.187.106]:56338 "EHLO hotmail.com") by vger.kernel.org with ESMTP id S262972AbUEBKkO (ORCPT ); Sun, 2 May 2004 06:40:14 -0400 X-Originating-IP: [67.22.169.122] X-Originating-Email: [jpiszcz@hotmail.com] From: "Justin Piszcz" To: linux-kernel@vger.kernel.org Subject: Linux Kernel 2.6.5 - Severe Bug(s) With DVD Read Support For Burned DVD-R's? Date: Sun, 02 May 2004 10:40:13 +0000 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 02 May 2004 10:40:13.0888 (UTC) FILETIME=[D9CDA400:01C43031] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I used a Plextor 8X +/- DVD/RW to burn two DVD-R's at a speed of 2x. 1] 3 files adding up to 4.2GB (no file is > 2.0GB however) 2] Many > 1000 files totaling 2.2GB. I used growisofs to burn the the ISO's. With the following command: growisofs -dvd-compat -Z /dev/scd0=dvd1.iso As a control, I used a professionally burned DVD I have the same DVD-READER in all my machines (4-5). hdd: TOSHIBA DVD-ROM SD-M1712, ATAPI CD/DVD-ROM drive I have tried with DMA on and DMA off, I get the following errors in DMESG: hdd: DMA disabled ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A Here is some DEBUG information: It copies 4.0GB out of the 4.0GB and then, from dmesg: hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 end_request: I/O error, dev hdd, sector 8173440 hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 end_request: I/O error, dev hdd, sector 8173444 hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 end_request: I/O error, dev hdd, sector 8173448 hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 end_request: I/O error, dev hdd, sector 8173452 hdd: media error (bad sector): status=0x51 { DriveReady SeekComplete Error } hdd: media error (bad sector): error=0x30 end_request: I/O error, dev hdd, sector 8173456 $ df -k /dev/hdd 4132960 4132960 0 100% /mnt $ du -ack *pgp 4093288 total Therefore, it _almost_ copies the entire DVD, but then it sh*ts the bed, any idea what is going on here? I have the _exact_ drive also as a slave in another box running Windows 2000 Professional which copies the DVD with no errors at all. This is a serious problem as I can never copy a DVD-R (that I burned) on Linux (to a Linux box), does anyone have any clue to why this occurs? This is where it gets interesting though, concerning the professionally burned DVD, I am not sure if it is DVD+R or DVD-R, but it copied the entire disc just fine: # mkdir /tmp/dvd; cp -r /mnt/* /tmp/dvd # 491.83GB/d 20985.00MB/h 349.75MB/m 5969.06KB/s 532.37GB/d 22714.80MB/h 378.58MB/m 6461.13KB/s 591.67GB/d 25245.00MB/h 420.75MB/m 7180.80KB/s 622.74GB/d 26570.40MB/h 442.84MB/m 7557.96KB/s 670.07GB/d 28590.00MB/h 476.50MB/m 8132.26KB/s 726.25GB/d 30987.00MB/h 516.45MB/m 8814.20KB/s 756.56GB/d 32280.00MB/h 538.00MB/m 9181.86KB/s With good speeds as well. On the Plextor 8X from which I burned it (under 2.4.x) kernel, (2.4.25/26), I can copy the entire DVD to anywhere without a single error (on the box that I burned it from). [root@l2 root]# mkdir /x/d [root@l2 root]# mount /dev/scd0 /mnt mount: block device /dev/scd0 is write-protected, mounting read-only [root@l2 root]# cp /mnt/* /x/d [root@l2 root]# du -sh /x/d 4.0G /x/d [root@l2 root]# du -sk /x/d 4136932 /x/d [root@l2 root]# Is it a problem with the drive, or something with the media not being supported under Linux, or are there some other factors at work here? _________________________________________________________________ Express yourself with the new version of MSN Messenger! Download today - it's FREE! http://messenger.msn.com/go/onm00200471ave/direct/01/