Messages in this thread |  | | Date | Sat, 28 Apr 2001 00:47:43 +0200 (CEST) | From | Tobias Ringstrom <> | Subject | IDE reset and DMA disabled after CD read error |
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When reading a bad CD, Linux 2.4.4-pre5 decided to turn off DMA when trying to read a bad sector. It also decided to reset the drive. Is that the expected behaviour? I'm certanly not an ATAPI expert, but it does seem a bit drastic to me. The drive is in UDMA33 mode on a VIA vt82c686a, with no (U)DMA problems detected (so far).
Isn't it possible to recogise a read error and treat it more gently?
/Tobias, fumbling in the dark
Here is the dmesg output:
Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:31 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:32 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:32 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:33 igor kernel: hda: DMA disabled Apr 27 23:32:33 igor kernel: hda: ATAPI reset complete Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:33 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:34 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:34 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:35 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:35 igor kernel: hda: ATAPI reset complete Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:36 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:37 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:37 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:37 igor kernel: hda: ATAPI reset complete Apr 27 23:32:37 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651222 Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:38 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:39 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:39 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:40 igor kernel: hda: ATAPI reset complete Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:40 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:41 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:41 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:42 igor kernel: hda: ATAPI reset complete Apr 27 23:32:42 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651222 Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:42 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:43 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:43 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:44 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:44 igor kernel: hda: ATAPI reset complete Apr 27 23:32:45 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:45 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:46 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:46 igor kernel: hda: ATAPI reset complete Apr 27 23:32:46 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651224 Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:47 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:48 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:48 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:49 igor kernel: hda: ATAPI reset complete Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:49 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:50 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:50 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:51 igor kernel: hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error } Apr 27 23:32:51 igor kernel: hda: cdrom_decode_status: error=0x34 Apr 27 23:32:51 igor kernel: hda: ATAPI reset complete Apr 27 23:32:51 igor kernel: end_request: I/O error, dev 03:00 (hda), sector 651226
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