Messages in this thread | | | Date | Mon, 30 Nov 1998 00:02:29 -0500 | From | Paul Barton-Davis <> | Subject | scsi medium errors cause system crash (2.1.121) |
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System config (till my dual 450 PII shows up :) -
486/66 kernel 2.1.121 system Red Hat 5.0 base Ultrastor 24F EISA SCSI adapter Iomega Jaz 1GB <other stuff elided>
I have a faulty Jaz drive/cartridge. In fact, I have had many, and I am about to return this one, get my money back and buy fixed storage instead.
However, I am disturbed that for the 5th time now, medium errors on this device cause my system to crash. Magic-SysRq doesn't work, virtual console switching is inoperative. The only clue to the state of things is that the main (system) disk drive LED on the front panel is permanently lit.
I don't think that SCSI errors should ever cause a system failure. Any ideas on whether this is a problem with the U24F driver, with the kernel, with my 24F adapter, or what ? Below is a transcript from /var/log/messages on the latest. It looks pretty uninteresting to me. In general, it seems that after a certain number of medium errors from this device, the SCSI subsystem just locks up the machine.
Nov 29 22:28:44 bd kernel: EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended Nov 29 22:31:00 bd kernel: EXT2-fs warning (device 08:21): ext2_free_blocks: bit already cleared for block 459416 Nov 29 22:31:28 bd kernel: Disc change detected. Nov 29 22:31:28 bd kernel: VFS: Disk change detected on device 08:20 Nov 29 22:31:28 bd kernel: SCSI device sdc: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0 GB] Nov 29 22:31:28 bd kernel: sdc: Write Protect is off Nov 29 22:31:28 bd kernel: sdc: sdc4 Nov 29 22:32:09 bd kernel: SCSI device sdc: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0 GB] Nov 29 22:32:09 bd kernel: sdc: Write Protect is off Nov 29 22:32:09 bd kernel: sdc: sdc3 Nov 29 22:32:12 bd kernel: SCSI device sdc: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0 GB] Nov 29 22:32:12 bd kernel: sdc: Write Protect is off Nov 29 22:32:12 bd kernel: sdc: sdc3 Nov 29 22:32:44 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 0d 00 4f 7a 00 Nov 29 22:32:44 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:44 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:44 bd kernel: scsidisk I/O error: dev 08:23, sector 852056 Nov 29 22:32:45 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 0d 01 1f 24 00 Nov 29 22:32:45 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:45 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:45 bd kernel: scsidisk I/O error: dev 08:23, sector 852198 Nov 29 22:32:45 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 0d 01 89 50 00 Nov 29 22:32:45 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:45 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:45 bd kernel: scsidisk I/O error: dev 08:23, sector 852340 Nov 29 22:32:45 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 0d 02 37 18 00 Nov 29 22:32:45 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:45 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:45 bd kernel: scsidisk I/O error: dev 08:23, sector 852482 Nov 29 22:32:47 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 0f 00 4f 58 00 Nov 29 22:32:47 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:47 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:47 bd kernel: scsidisk I/O error: dev 08:23, sector 983136 Nov 29 22:32:47 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 0f 01 b1 68 00 Nov 29 22:32:47 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:47 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:47 bd kernel: scsidisk I/O error: dev 08:23, sector 983438 Nov 29 22:32:49 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 80 4f 6c 00 Nov 29 22:32:49 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:49 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:49 bd kernel: scsidisk I/O error: dev 08:23, sector 1146978 Nov 29 22:32:49 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 81 13 30 00 Nov 29 22:32:49 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:49 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:49 bd kernel: scsidisk I/O error: dev 08:23, sector 1147102 Nov 29 22:32:50 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 81 43 5a 00 Nov 29 22:32:50 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:50 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:50 bd kernel: scsidisk I/O error: dev 08:23, sector 1147226 Nov 29 22:32:50 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 82 11 26 00 Nov 29 22:32:50 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:32:50 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:32:50 bd kernel: scsidisk I/O error: dev 08:23, sector 1147350 Nov 29 22:33:02 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 1e 00 4f 76 00 Nov 29 22:33:02 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:33:02 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:33:02 bd kernel: scsidisk I/O error: dev 08:23, sector 1966206 Nov 29 22:33:02 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 1e 01 43 4e 00 Nov 29 22:33:02 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:33:02 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:33:02 bd kernel: scsidisk I/O error: dev 08:23, sector 1966348 Nov 29 22:33:02 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 1e 01 91 9c 00 Nov 29 22:33:02 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:33:02 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:33:02 bd kernel: scsidisk I/O error: dev 08:23, sector 1966490 Nov 29 22:33:04 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 1f c0 4f 84 00 Nov 29 22:33:04 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:33:04 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:33:04 bd kernel: scsidisk I/O error: dev 08:23, sector 2080858 Nov 29 22:33:04 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 1f c0 d3 70 00 Nov 29 22:33:04 bd kernel: Current error sd08:23: sense key Medium Error Nov 29 22:33:04 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:33:04 bd kernel: scsidisk I/O error: dev 08:23, sector 2081000 Nov 29 22:34:25 bd kernel: SCSI device sdc: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0 GB] Nov 29 22:34:25 bd kernel: sdc: Write Protect is off Nov 29 22:34:26 bd kernel: sdc: sdc1 Nov 29 22:34:31 bd kernel: SCSI device sdc: hdwr sector= 512 bytes. Sectors= 2091050 [1021 MB] [1.0 GB] Nov 29 22:34:31 bd kernel: sdc: Write Protect is off Nov 29 22:34:31 bd kernel: sdc: sdc1 Nov 29 22:35:08 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 80 b3 70 00 Nov 29 22:35:08 bd kernel: Current error sd08:21: sense key Medium Error Nov 29 22:35:08 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:35:08 bd kernel: scsidisk I/O error: dev 08:21, sector 1147102 Nov 29 22:35:08 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 81 43 62 00 Nov 29 22:35:08 bd kernel: Current error sd08:21: sense key Medium Error Nov 29 22:35:08 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:35:08 bd kernel: scsidisk I/O error: dev 08:21, sector 1147226 Nov 29 22:35:08 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 82 0f 28 00 Nov 29 22:35:08 bd kernel: Current error sd08:21: sense key Medium Error Nov 29 22:35:08 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:35:08 bd kernel: scsidisk I/O error: dev 08:21, sector 1147350 Nov 29 22:36:59 bd kernel: scsi0: MEDIUM ERROR on channel 0, id 4, lun 0, CDB: Write (6) 11 82 4f 5c 00 Nov 29 22:36:59 bd kernel: Current error sd08:21: sense key Medium Error Nov 29 22:36:59 bd kernel: Additional sense indicates Unrecovered read error Nov 29 22:36:59 bd kernel: scsidisk I/O error: dev 08:21, sector 1147474
At this point, I reset the machine since it was now locked. I also note that the data in /var/log/messages was somewhat corrupt, possibly from another similar crash: messages from Oct 17th came after this and before the restart message. My log files are rotated nightly. Just a random data point.
--p
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