Comment 14 for bug 263160

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krot (ubuntu-communitare) wrote :

Same problem with an ATI SB700/SB800 sata controller running a RAID-5 on Ubuntu 8.10. Under heavy load the system stalls and I see these errors

[255670.268058] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[255670.268082] ata5.00: cmd b0/da:00:00:4f:c2/00:00:00:00:00/00 tag 0
[255670.268085] res 40/00:00:2f:7b:a8/00:00:ae:00:00/e0 Emask 0x4 (timeout)
[255670.268092] ata5.00: status: { DRDY }
[255670.268103] ata5: hard resetting link
[255670.752537] ata5: softreset failed (device not ready)
[255670.752551] ata5: failed due to HW bug, retry pmp=0
[255670.916053] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[255671.611176] ata5.00: configured for UDMA/133
[255671.611226] ata5: EH complete

Driver used seems to be libata, not sata_mv.

If needed I can provide more information.