Hi,
I have a disk that probably has "just the right kind" of badblock.
Once I hit the badblock, the disk does a few retries until the
scsi-read command times out, and the scsibus is reset. Next the
read is retried, and timedout and reset again. And again, and again.
After 10 minutes I reset the PC and tried a different block. Same
result(*), so that disk should be considered a "goner", but still I'd
like the system to report "IO error" within say 60 seconds. I'd prefer
something like "5" seconds, but 60 seconds seems to be like the upper
limit.
Roger.
(*) From the log, it seems I let that one run for about 20 minutes
before giving up.
<6>ncr53c8xx: at PCI bus 0, device 10, function 0
<6>ncr53c8xx: 53c810 detected
<6>ncr53c810-0: rev=0x02, base=0xfb000000, io_port=0xd000, irq=7
<6>ncr53c810-0: ID 7, Fast-10, Parity Checking
<6>ncr53c810-0: restart (scsi reset).
<4>scsi0 : ncr53c8xx - version 3.2a-2
<4>scsi : 1 host.
<4> Vendor: TOSHIBA Model: MK2326FB Rev: A14S
<4> Type: Direct-Access ANSI SCSI revision: 02
<4>scsi : detected 1 SCSI disks total.
<6>Uniform CDROM driver Revision: 2.56
<6>ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
<4>SCSI device sda: hdwr sector= 512 bytes. Sectors= 665388 [324 MB] [0.3 GB]
<4>Partition check:
<4> sda: sda1 sda2
Mar 29 18:57:30 ozon kernel: scsi : aborting command due to timeout : pid 27, scsi0, channel 0, id 0, lun 0 Read (10) 00 00 00 db c6 00 00 02 00
Mar 29 18:57:30 ozon kernel: ncr53c8xx_abort: pid=27 serial_number=33 serial_number_at_timeout=33
Mar 29 18:57:32 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 18:57:32 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 18:57:32 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=33 serial_number_at_timeout=33
Mar 29 18:57:32 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 18:57:48 ozon kernel: ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
Mar 29 18:58:04 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 18:58:04 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 18:58:04 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=34 serial_number_at_timeout=34
Mar 29 18:58:04 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 18:58:28 ozon xntpd[138]: peer 130.161.38.65 event 'event_reach' (0x84) status 'unreach, conf, 1 event, event_reach' (0x8014)
Mar 29 18:58:36 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 18:58:36 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 18:58:36 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=35 serial_number_at_timeout=35
Mar 29 18:58:36 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 18:58:38 ozon kernel: ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
Mar 29 18:59:08 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 18:59:08 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 18:59:08 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=36 serial_number_at_timeout=36
Mar 29 18:59:08 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 18:59:29 ozon kernel: ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
[...]
Mar 29 19:15:07 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 19:15:07 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 19:15:07 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=66 serial_number_at_timeout=66
Mar 29 19:15:07 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 19:15:29 ozon kernel: ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
Mar 29 19:15:39 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 19:15:39 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 19:15:39 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=67 serial_number_at_timeout=67
Mar 29 19:15:39 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 19:16:11 ozon kernel: SCSI host 0 abort (pid 27) timed out - resetting
Mar 29 19:16:11 ozon kernel: SCSI bus is being reset for host 0 channel 0.
Mar 29 19:16:11 ozon kernel: ncr53c8xx_reset: pid=27 reset_flags=2 serial_number=68 serial_number_at_timeout=68
Mar 29 19:16:11 ozon kernel: ncr53c810-0: restart (scsi reset).
Mar 29 19:16:17 ozon kernel: ncr53c810-0-<0,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
-- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2137555 ** *-- BitWizard writes Linux device drivers for any device you may have! --* * Common sense is the collection of * ****** prejudices acquired by age eighteen. -- Albert Einstein ********- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 21:00:26 EST