linux-kernel - Re: CK804 SATA Errors (still got them)

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Message-id: <45E78E8A.2090202@shaw.ca>
Date:	Thu, 01 Mar 2007 20:40:10 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Alistair John Strachan <s0348365@....ed.ac.uk>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org
Subject: Re: CK804 SATA Errors (still got them)

Alistair John Strachan wrote:
> On Thursday 01 March 2007 15:13, Alistair John Strachan wrote:
>> On Thursday 01 March 2007 14:45, Robert Hancock wrote:
>>> This one seems a bit different. This time it's not related to NCQ vs.
>>> non-NCQ (this is a non-NCQ write here), it's in ADMA mode (so it's
>>> presumably not related to switching between ADMA and register mode,
>>> unless perhaps a flush cache or something executed just before), and
>>> from the CPB data it appears the command completed but the controller's
>>> registers aren't indicating that it has. Not sure if I've seen one like
>>> that before..
>>>
>>> How easily can you reproduce this?
>> It's the first one since -rc2, so apparently not easily. I'm more than
>> willing to find loads that expose it, though, so I might try that this
>> afternoon.
> 
> Got another:
> 
> ata2: EH in ADMA mode, notifier 0x0 notifier_error 0x0 gen_ctl 0x1501000 status 0x500 next cpb count 0x0 next cpb idx 0x0
> ata2: CPB 0: ctl_flags 0xd, resp_flags 0x1
> ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> ata2.00: cmd c8/00:80:85:c4:ed/00:00:00:00:00/e3 tag 0 cdb 0x0 data 65536 in
>          res 40/00:00:01:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
> ata2: soft resetting port
> ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> ata2.00: configured for UDMA/133
> ata2: EH complete
> SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB)
> sdb: Write Protect is off
> sdb: Mode Sense: 00 3a 00 00
> SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> 
> Different HD, similar problem.

Can you try reverting commit 721449bf0d51213fe3abf0ac3e3561ef9ea7827a 
(link below) and see what effect that has?

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=721449bf0d51213fe3abf0ac3e3561ef9ea7827a

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@...pamshaw.ca
Home Page: http://www.roberthancock.com/


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