linux-kernel - Re: sata_nv ADMA controller lockup investigation

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Date:	Tue, 20 Mar 2007 17:24:00 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Neil Schemenauer <nas@...trix.com>
Cc:	Jeff Garzik <jeff@...zik.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org, Allen Martin <AMartin@...dia.com>,
	B.Steinbrink@....de
Subject: Re: sata_nv ADMA controller lockup investigation

Neil Schemenauer wrote:
> Not sure if this helps.  I'm getting this reset with 2.6.21-rc4.
> After the reset the controller seems to work again.
> 
...
> ata2.00: ATA-7: Maxtor 6V300F0, VA111630, max UDMA/133
> ata2.00: 586114704 sectors, multi 16: LBA48 NCQ (depth 31/32)

...

> ata2: EH in ADMA mode, notifier 0x0 notifier_error 0x0 gen_ctl 0x1501000 status 0x400 next cpb count 0x0 next cpb idx 0x0
> ata2: CPB 1: ctl_flags 0x1f, resp_flags 0x2
> ata2: timeout waiting for ADMA IDLE, stat=0x400
> ata2: timeout waiting for ADMA LEGACY, stat=0x400
> ata2.00: exception Emask 0x0 SAct 0x2 SErr 0x0 action 0x2 frozen
> ata2.00: cmd 61/00:08:72:44:22/02:00:21:00:00/40 tag 1 cdb 0x0 data 262144 out
>          res 40/00:00:00:00:00/00:00:00:00:00/00 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 sda: 586114704 512-byte hdwr sectors (300091 MB)
> sda: Write Protect is off
> sda: Mode Sense: 00 3a 00 00
> SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA

That one looks like a drive-side issue. CPB resp_flags 2 indicates the 
drive accepted the command and the controller is still waiting for a 
response.

Could be that this is another drive that needs to be added to the NCQ 
blacklist, some similar Maxtor models seem to have issues..

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

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