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Message-ID: <20070513012045.GA15162@curie-int.orbis-terrarum.net>
Date:	Sat, 12 May 2007 18:20:45 -0700
From:	"Robin H. Johnson" <robbat2@...too.org>
To:	Robert Hancock <hancockr@...w.ca>, linux-ide@...r.kernel.org
Cc:	Fred Moyer <fred@...hotpenguin.com>, linux-kernel@...r.kernel.org
Subject: Re: [2.6.21.1] SATA freeze

On Sat, May 12, 2007 at 12:48:59PM -0600, Robert Hancock wrote:
>  Fred Moyer wrote:
> > I just joined the list today so apologies if this email breaks any email 
> > client post threading.
> > I have been seeing similar errors on two different systems.  I applied 
> > Robert's sata_nv patch posted to the list on May 5th, and approved today by 
> > Jeff Garzik.  I've taken several steps to insure that this isn't a faulty 
> > cable or drive issue.  This is running on a hp dl145g2.  Here is my lspci, 
> > dmesg, and relevant kernel config sections:
> 
>  (snip)
> 
> > ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> > ata1.00: cmd b0/d2:f1:00:4f:c2/00:00:00:00:00/00 tag 0 cdb 0x0 data 123392 
> > in
> >          res 50/00:f1:00:4f:c2/00:00:00:00:00/00 Emask 0x202 (HSM 
> > violation)
> > ata1: soft resetting port
> > ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > ata1.00: configured for UDMA/100
> > ata1: EH complete
> 
>  This appears to be a different problem. Something is issuing SMART-related 
>  commands (smartd or smartctl perhaps) which the drive seems to be reacting 
>  strangely to. It apparently completed the command but never raised DRQ to 
>  request any data being transferred even though we expected it to. Maybe 
>  SMART is disabled on the drive and that's causing it to just toss these 
>  commands? CCing linux-ide in case anyone knows what would cause this.
I previously posted a near identical error to linux-ide.
http://article.gmane.org/gmane.linux.ide/18375

Specifically, I could trigger it by running 'smartctl -d ata -S on
/dev/sda' OR (s-S/o/).

Same sata_nv controller, two different drives, many different cables.
Reproducible over 7 systems [two different models of Tyan mobo] that I
have.

-- 
Robin Hugh Johnson
Gentoo Linux Developer & Council Member
E-Mail     : robbat2@...too.org
GnuPG FP   : 11AC BA4F 4778 E3F6 E4ED  F38E B27B 944E 3488 4E85

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