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From: "Daniel Eriksson" <daniel_k_eriksson@telia.com>
To: "'Ville-Pertti Keinonen'" <will+freebsd-current@will.iki.fi>
Date: Wed, 4 Aug 2004 14:20:24 +0200
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cc: freebsd-current@freebsd.org
cc: =?iso-8859-1?Q?'S=F8ren_Schmidt'?= <sos@DeepCore.dk>
Subject: RE: ATA driver races with interrupts
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Ville-Pertti Keinonen wrote:

> The attached patch should enable serialization for the=20
> controller, which is the only completely reliable fix
> (without chipset documentation) according to S=F8ren.
> Obviously it reduces performance since it doesn't=20
> allow both channels to operate simultaneously.

After applying the patch to sources cvsuped 2004.08.04.01.00.00, =
everything
seems to be working correctly. I've run a few stress-tests successfully, =
and
I also started smartd (/usr/ports/sysutils/smartmontools/) which =
previously
always managed to lock up one of the SATA channels.

I am going to run some more stress-tests later today, but it looks =
pretty
promising.

/Daniel Eriksson