Cdrom_decode_status Status 0x51 Driveready Seekcomplete Error

when trying to playJul 13 00:15:03 joehill kernel: hdc: cdrom_decode_status: status=0x51 {DriveReady SeekComplete Error }error=0x30LastFailedSense 0x03this is ide-cd problem. drivers/ide/ide-cd:cdrom_decode_status():} else if drive_cmd status 0x51 driveready seekcomplete error ((err & ~ABRT_ERR) != 0) {/* Go to the default hdc drive_cmd status 0x51 driveready seekcomplete error handlerfor other errors. */DRIVER(drive)->error(drive,"cdrom_decode_status",stat);return 1;} else if (sense_key == MEDIUM_ERROR) {/* No point in re-trying a zillion times on a bad* sector... If we got here the error is notcorrectable */ide_dump_status (drive, "media error (bad sector)",stat);cdrom_end_request(drive, 0);The above sense key is exactly MEDIUM_ERROR but driver never has chance tostop "retring zillion times" simply because it immediately falls down intodriver->error again. So "innocent" media error results half an hour retriesand disabled DMA.Jul 13 00:15:03 joehill kernel: hdc: ide_intr: huh? expected NULL handler onexitThis problem has been discussed several times before on this list[1], butwithno resolution or fixes that I can find.I don't believe this is a userspace issue. Other OS's are able to deal withplaying video DVDs by skipping read errors quickly. There should be someoneway to tell the kernel not to keep retrying for certain (i.e., non-data)CD/DVDs. I can't see any possible way to do this in application space,though.they are not user-space issues. Try to swap two conditions above and see whathappens. I cannot test it anymore for reason below ...[...]I'm not sure why it's getting errors at all, incidentally, as this occurswith brand new DVDs out of the shrink wrap, and a relatively new DVDplayer (HP F2015B, manufactured by Quanta).I just had to ditch brand new Toshiba SD-R1312 because I got exactly the sameerrors on multisession CDs. Single sessions were OK but multisessions almostnever could be reas properly resulting in flood of positioning errors.While this may be Linux bug in read-ahead handling,

Error }I tried to setup my Dell Inspiron 7500 notebook (Celeron 466/512MB) with TORiSAN DVD-ROM DRD-U62 (RPC-2 drive :-( ) to watch DVD and found the following when using decss to read the encrypted vob files (other ways to access the file eventually produce the same error) under 2.4.12 kernel, RedHat Linux 7.1. After I authenticated the drive and got a title key for some file, http://linux.kernel.narkive.com/3WKoQgRn/dvd-cd-read-problem-cdrom-decode-status-status-0x51-driveready-seekcomplete-error css-cat always fails on the first 2-3 attempts to read the file due to input-output error with kernel message:hdc: command error: status=0x51 { DriveReady SeekComplete Error }hdc: command error: error=0x50end_request: I/O error, dev 16:00 (hdc), sector 563008After that vob file on third-forth attempt can be successfullyread. I added error printouts to https://lkml.org/lkml/2001/10/14/141 the program and find out that on the first attempt css-cat in general fails during read call on some 2k block at the very beginning of the file, on the second attempt it proceeds farther, but around 1000-2000 block it fails again and in general the third attempt either fails around the same offset or proceed with calling read on each 2K block without problems. Then I tried to use after the drive authentication something likedd bs=2048 if=/mnt/cdrom/ of=/dev/nullit shows exactly the same behavior as css-cat.When I use dd to read a vob file from a newly inserted DVD without any authentication, it fails to read about 5% of all 2K file blocks with the same error or with messages like:hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }hdc: cdrom_decode_status: error=0x30hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }hdc: cdrom_decode_status: error=0x30hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }hdc: cdrom_decode_status: error=0x30hdc: cdrom_decode_status: st

View posts from last 24 hours Gentoo Forums Forum Index Kernel & Hardware View previous topic :: View next topic Author Message jessoGuruJoined: 27 Oct 2004Posts: 397Location: Canada https://forums.gentoo.org/viewtopic-t-610637-view-previous.html?sid=131ff82c2e86c1398c41d48f9181addb Posted: Thu Dec 06, 2007 10:51 pm Post subject: [solved] playing DVD's are choppy - dma disabled When I play a DVD, the "dma" gets turned off and the video is choppy (of course). Before I http://mplayerhq.hu/pipermail/mplayer-users/2001-November/007035.html play the DVD, dma is on, and then switches off. I thought it may be a faulty drive, but this is my second DVD burner with the same results. From dmesg: Code: hda: selected mode 0x44 status 0x51 hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: failed opcode was: unknown hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } hda: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 } ide: status 0x51 driveready failed opcode was: unknown hda: DMA disabled hda: ide_intr: huh? expected NULL handler on exit hda: ATAPI reset complete Code: dmesg | grep -i dvd hda: HL-DT-STDVD-RAM GSA-H55L, ATAPI CD/DVD-ROM drive hda: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache, UDMA(66) What could be the problem? I have the latest BIOS for my board as well. I have had this problem since I bought this PC. The thing is in Windows DVD's play just fine. This does not happen when I burn DVD images for example. The biggest problem is playing DVD video.Last edited by jesso on Sat Dec 08, 2007 1:58 am; edited 1 time in total Back to top DaggyStyleWatchmanJoined: 22 Mar 2006Posts: 5064 Posted: Fri Dec 07, 2007 5:32 am Post subject: if you have a sata controller, disable entirely the ide support in the kernel._________________Only two things are infinite, the universe and human stupidity and I'm not sure about the former - Albert Einstein ProjectFootball Back to top jessoGuruJoined: 27 Oct 2004Posts: 397Location: Canada Posted: Fri Dec 07, 2007 1:49 pm Post subject: DaggyStyle wrote: if you have a sata controller, disable entirely the ide support in the kernel. Today I'm getting the SATA version of this DVD burner. I'll see how this goes. Back to top

avi file reading from the cdrom device Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] System: Linux Debian woody Kernel: 2.4.14 Libc: libc-2.2.4 X version: 4.1.0 gcc version: gcc version 2.95.4 20011006 (Debian prerelease) binutils version: GNU ld version 2.11.92.0.10 20011021 Debian/GNU Linux CPU: Pentium II (Klamath) cpu MHz : 233.869 CDROM drive: IDE ATAPI If a try to play an avi file reading from the cdrom device I always get lots of kernel's errors like: Nov 13 20:47:52 cauchy kernel: Uniform CD-ROM driver unloaded Nov 13 20:47:52 cauchy kernel: hdc: ATAPI 32X CD-ROM CD-R/RW drive, 2048kB Cache, DMA Nov 13 20:47:52 cauchy kernel: Uniform CD-ROM driver Revision: 3.12 Nov 13 20:48:00 cauchy kernel: VFS: Disk change detected on device ide1(22,0) Nov 13 20:48:00 cauchy kernel: ISO 9660 Extensions: Microsoft Joliet Level 3 Nov 13 20:48:00 cauchy kernel: ISO 9660 Extensions: RRIP_1991A Nov 13 20:48:30 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:48:30 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:48:37 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:48:37 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:48:44 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:48:44 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:48:51 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:48:51 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:48:51 cauchy kernel: hdc: DMA disabled Nov 13 20:48:51 cauchy kernel: hdc: ATAPI reset complete Nov 13 20:48:58 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:48:58 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:49:05 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:49:05 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:49:12 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:49:12 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:49:19 cauchy kernel: hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Nov 13 20:49:19 cauchy kernel: hdc: cdrom_decode_status: error=0x34 Nov 13 20:49:19 cauchy kernel: hdc: ATAPI reset complete Nov 13 20:49:26 cauchy kerne