Mark Lord wrote:
Two marvell controllers, 16 disks, software raid10, IO stucks on
different disks, kernel 2.6.26.5.
With default ubuntu's 8.04 2.6.24 kernel the problem can not be
repeated
[ 289.851609] ata11.00: exception Emask 0x0 SAct 0x1 SErr 0x0
action 0x6 frozen
[ 289.851695] ata11.00: cmd 61/08:00:60:1e:bf/00:00:01:00:00/40 tag
0 ncq 4096 out
[ 289.851697] res 40/00:00:00:00:00/00:00:00:00:00/00
Emask 0x4 (timeout)
[ 289.851774] ata11.00: status: { DRDY }
[ 289.851834] ata11: hard resetting link
[ 290.649259] ata11: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 290.749239] ata11.00: max_sectors limited to 256 for NCQ
[ 290.809189] ata11.00: max_sectors limited to 256 for NCQ
[ 290.809194] ata11.00: configured for UDMA/133
[ 290.809200] ata11: EH complete
[ 290.809242] sd 10:0:0:0: [sdk] 1953525168 512-byte hardware
sectors (1000205 MB)
[ 290.809258] sd 10:0:0:0: [sdk] Write Protect is off
[ 290.809263] sd 10:0:0:0: [sdk] Mode Sense: 00 3a 00 00
[ 290.809286] sd 10:0:0:0: [sdk] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
...
I've just returned here from a month holiday in Italy,
and I'll have a look at this and other sata_mv issues
next week or so.
I ran git-bisect on it and it returned
a3718c1f230240361ed92d3e53342df0ff7efa8c as first bad commit. Also
verified by hand that patching it on working tree breaks it.
--
Harri.
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