Kernel bug or disk failure
csnook at redhat.com
Fri Jul 11 21:43:15 UTC 2008
Sam Varshavchik wrote:
> Every other week or so, I get a disk kicked out of my RAID, with this:
> Jul 6 04:05:38 commodore kernel: (scsi1:A:0:0): scsi1: device overrun
> (status 10) on 0:0:0
> Jul 6 04:05:38 commodore kernel: Unexpected busfree in DT Data-in
> phase, 1 SCBs aborted, PRGMCNT == 0x22f
> Jul 6 04:05:38 commodore kernel: >>>>>>>>>>>>>>>>>> Dump Card State
> Begins <<<<<<<<<<<<<<<<<
> Jul 6 04:05:38 commodore kernel: scsi1: Dumping Card State at program
> address 0x22d Mode 0x22
> Jul 6 04:05:38 commodore kernel: Card was paused
> … followed by a rather dry dump of the HBA's registers. This is aic79xxx.
> This does not look like a disk error to me. I re-add the drive into the
> array, and rebuild with no downtime. SMART shows 0 in the defect list on
> this drive, and over the disk's lifetime 0 uncorrectable reads and 1
> uncorrectable write -- but this kernel barf already happened 4-5 times
> now, and it's getting rather annoying.
Looks more like a controller problem than a drive problem. Do you have a spare
HBA to test?
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