Chris Snook writes:
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 0x22Jul 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?
No, but I have one on order, now. I reseated the cable, that didn't help -- the card dumped again about 12 hours later, but it was, apparently, non-fatal because RAID did not degrade.
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