Comment 63 for bug 550559

The following erros occur with the live demo of the desktop install CD of 11.04 natty:
kernel: 2.6.38-8-generic x86_64

[ 876.391515] md/raid:md3: device sde operational as raid disk 2
[ 876.391520] md/raid:md3: device sdb operational as raid disk 1
[ 876.391525] md/raid:md3: device sda operational as raid disk 0
[ 876.393557] md/raid:md3: allocated 8490kB
[ 876.393650] md/raid:md3: raid level 6 active with 6 out of 8 devices, algorithm 2
[ 876.393789] RAID conf printout:
[ 876.393794] --- level:6 rd:8 wd:6
[ 876.393800] disk 0, o:1, dev:sda
[ 876.393805] disk 1, o:1, dev:sdb
[ 876.393809] disk 2, o:1, dev:sde
[ 876.393813] disk 3, o:1, dev:sdf
[ 876.393817] disk 4, o:1, dev:sdg
[ 876.393821] disk 5, o:1, dev:sdh
[ 876.393925] md3: detected capacity change from 0 to 12002383626240
[ 876.394872] md3: unknown partition table
[ 1082.960084] ata2.00: exception Emask 0x0 SAct 0x3f SErr 0x0 action 0x6 frozen
[ 1082.960095] ata2.00: failed command: WRITE FPDMA QUEUED
[ 1082.960111] ata2.00: cmd 61/a0:00:b0:08:0a/02:00:09:00:00/40 tag 0 ncq 344064 out
[ 1082.960114] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1082.960122] ata2.00: status: { DRDY }
[ 1082.960128] ata2.00: failed command: WRITE FPDMA QUEUED
[ 1082.960140] ata2.00: cmd 61/08:08:f0:0b:0a/00:00:09:00:00/40 tag 1 ncq 4096 out
[ 1082.960143] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1082.960150] ata2.00: status: { DRDY }
[ 1082.960155] ata2.00: failed command: WRITE FPDMA QUEUED
[ 1082.960168] ata2.00: cmd 61/40:10:00:5c:09/00:00:09:00:00/40 tag 2 ncq 32768 out
[ 1082.960171] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1082.960177] ata2.00: status: { DRDY }
[ 1082.960182] ata2.00: failed command: WRITE FPDMA QUEUED
[ 1082.960194] ata2.00: cmd 61/10:18:40:5c:09/00:00:09:00:00/40 tag 3 ncq 8192 out
[ 1082.960197] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1082.960203] ata2.00: status: { DRDY }
[ 1082.960209] ata2.00: failed command: WRITE FPDMA QUEUED
[ 1082.960221] ata2.00: cmd 61/a8:20:50:5c:09/03:00:09:00:00/40 tag 4 ncq 479232 out
[ 1082.960223] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1082.960230] ata2.00: status: { DRDY }
[ 1082.960235] ata2.00: failed command: WRITE FPDMA QUEUED
[ 1082.960247] ata2.00: cmd 61/08:28:f8:5f:09/00:00:09:00:00/40 tag 5 ncq 4096 out
[ 1082.960250] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 1082.960256] ata2.00: status: { DRDY }
[ 1082.960265] ata2: hard resetting link
[ 1083.470120] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 1083.550175] ata2.00: configured for UDMA/133
[ 1083.550190] ata2.00: device reported invalid CHS sector 0
[ 1083.550197] ata2.00: device reported invalid CHS sector 0
[ 1083.550203] ata2.00: device reported invalid CHS sector 0
[ 1083.550209] ata2.00: device reported invalid CHS sector 0
[ 1083.550217] ata2.00: device reported invalid CHS sector 0
[ 1083.550222] ata2.00: device reported invalid CHS sector 0
[ 1083.550246] ata2: EH complete

In the end the machine locked hard.

Next week I'll try the same with the SATA disks attached to an areca SAS-HBA.

Regards