After upgrading to 2.6.24-18.32 swncq seems to be enabled by default. I
notice few errors like
[...]
[69919.423025] ata3: EH in SWNCQ mode,QC:qc_active 0x3FF sactive 0x3FF
[69919.423060] ata3: SWNCQ:qc_active 0x3 defer_bits 0x3FC last_issue_tag 0x1
[69919.423061] dhfis 0x3 dmafis 0x1 sdbfis 0x0
[69919.423082] ata3: ATA_REG 0x40 ERR_REG 0x0
[69919.423105] ata3: tag : dhfis dmafis sdbfis sacitve
[69919.423126] ata3: tag 0x0: 1 1 0 1
[69919.423142] ata3: tag 0x1: 1 0 0 1
[69919.423165] ata3.00: exception Emask 0x0 SAct 0x3ff SErr 0x0 action 0x6
frozen
[69919.423200] ata3.00: cmd 60/78:00:bc:cd:c6/00:00:19:00:00/40 tag 0 ncq 61440
in
[69919.423201] res 40/00:00:09:4f:c2/00:00:00:00:00/00 Emask 0x4
(timeout)
[69919.423231] ata3.00: status: { DRDY }
[...]
[69919.425237] ata3: hard resetting link
[69919.898648] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[69919.914821] ata3.00: configured for UDMA/133
[69919.914845] ata3: EH complete
[...]
Recently I've upgraded to 2.6.24-19.33 and errors still remains, but now
there are plenty of them. I attach some debug information. I don't realy
know if this problem is related to swncq. Please notify me if not, so I
can submit it as a new bug.
** Attachment added: "dmesg(2)"
http://launchpadlibrarian.net/15428659/dmesg%282%29
--
sata_nv regression, reboots system
https://bugs.launchpad.net/bugs/210637
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