SATA repeated failure (command 0x35 timeout, status 0xd8)

["Molle Bestefich" <molle.bestefich@gmail.com>]

Hi,

I have a box with the following hardware/software configuration.

# uname -r
2.6.16.5

# lspci | grep SATA
00:0b.0 CMD Technology Inc Silicon Image SiI 3112 SATARaid Controller (rev 02)
00:0d.0 CMD Technology Inc Silicon Image SiI 3112 SATARaid Controller (rev 02)
00:0f.0 CMD Technology Inc Silicon Image SiI 3112 SATARaid Controller (rev 02)

# cd /sys/bus/scsi/devices; for dev in `ls -1`; do name=`ls -1d
$dev/block*`; disk=`cat $dev/model`; echo "$name: $disk"; done
0:0:0:0/block:sda: Maxtor 6Y250M0
1:0:0:0/block:sdb: Maxtor 6Y200M0
2:0:0:0/block:sdc: Maxtor 6Y200M0
3:0:0:0/block:sdd: Maxtor 6Y200M0
4:0:0:0/block:sde: Maxtor 6Y200M0
5:0:0:0/block:sdf: Maxtor 6Y200M0

It can operate normally for the longest time, but all of a sudden the
following happens.

# dmesg
ata2: command 0x35 timeout, stat 0xd8 host_stat 0x1
ata2: translated ATA stat/err 0xd8/00 to SCSI SK/ASC/ASCQ 0xb/47/00
ata2: status=0xd8 { Busy }
sd 1:0:0:0: SCSI error: return code = 0x8000002
sdb: Current: sense key: Aborted Command
   Additional sense: Scsi parity error
end_request: I/O error, dev sdb, sector 323729879
ATA: abnormal status 0xD8 on port 0xD095E0C7
ATA: abnormal status 0xD8 on port 0xD095E0C7
ATA: abnormal status 0xD8 on port 0xD095E0C7
--
ata2: command 0x35 timeout, stat 0xd8 host_stat 0x1
ata2: translated ATA stat/err 0xd8/00 to SCSI SK/ASC/ASCQ 0xb/47/00
ata2: status=0xd8 { Busy }
sd 1:0:0:0: SCSI error: return code = 0x8000002
sdb: Current: sense key: Aborted Command
   Additional sense: Scsi parity error
end_request: I/O error, dev sdb, sector 323729887
ATA: abnormal status 0xD8 on port 0xD095E0C7
ATA: abnormal status 0xD8 on port 0xD095E0C7
ATA: abnormal status 0xD8 on port 0xD095E0C7

[ .. et cetera, always with sector += 8 .. ]

This usually happens during a write to the RAID.

Funny thing is, it always happens to /dev/sdb.
It's happened 100s of times, but not once to any other device than /dev/sdb.

Resetting and running Maxtor PowerMax reports that the drive has no
hardware problems whatsoever.

I can't think of anything useful, except that /dev/sdb sits on the
same controller card as /dev/sda, which is a slightly different disk
than the rest of the bunch.

What can/should I do?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/