Date: Sat, 12 May 2007 18:20:45 -0700
From: "Robin H. Johnson" <robbat2@gentoo.org>
To: Robert Hancock <hancockr@shaw.ca>, linux-ide@vger.kernel.org
Cc: Fred Moyer <fred@redhotpenguin.com>, linux-kernel@vger.kernel.org
Subject: Re: [2.6.21.1] SATA freeze
Message-ID: <20070513012045.GA15162@curie-int.orbis-terrarum.net>
References: <fa.zU1kuoSgByTYCYqY+iCQ5rMJy34@ifi.uio.no> <46460C1B.6000609@shaw.ca>
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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 emai=
l=20
> > client post threading.
> > I have been seeing similar errors on two different systems.  I applied=
=20
> > Robert's sata_nv patch posted to the list on May 5th, and approved toda=
y by=20
> > Jeff Garzik.  I've taken several steps to insure that this isn't a faul=
ty=20
> > cable or drive issue.  This is running on a hp dl145g2.  Here is my lsp=
ci,=20
> > dmesg, and relevant kernel config sections:
>=20
>  (snip)
>=20
> > 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 123=
392=20
> > in
> >          res 50/00:f1:00:4f:c2/00:00:00:00:00/00 Emask 0x202 (HSM=20
> > 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
>=20
>  This appears to be a different problem. Something is issuing SMART-relat=
ed=20
>  commands (smartd or smartctl perhaps) which the drive seems to be reacti=
ng=20
>  strangely to. It apparently completed the command but never raised DRQ t=
o=20
>  request any data being transferred even though we expected it to. Maybe=
=20
>  SMART is disabled on the drive and that's causing it to just toss these=
=20
>  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.

--=20
Robin Hugh Johnson
Gentoo Linux Developer & Council Member
E-Mail     : robbat2@gentoo.org
GnuPG FP   : 11AC BA4F 4778 E3F6 E4ED  F38E B27B 944E 3488 4E85

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