linux-kernel - Re: data corruption with nvidia chipsets and IDE/SATA drives (k8 cpu errata needed?)

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Message-ID: <m3d55eiuho.fsf@maximus.localdomain>
Date:	Tue, 16 Jan 2007 21:31:31 +0100
From:	Krzysztof Halasa <khc@...waw.pl>
To:	Chris Wedgwood <cw@...f.org>
Cc:	Robert Hancock <hancockr@...w.ca>,
	Christoph Anton Mitterer <calestyo@...entia.net>,
	linux-kernel@...r.kernel.org, knweiss@....de, ak@...e.de,
	andersen@...epoet.org, krader@...ibm.com, lfriedman@...dia.com,
	linux-nforce-bugs@...dia.com
Subject: Re: data corruption with nvidia chipsets and IDE/SATA drives (k8 cpu errata needed?)

Chris Wedgwood <cw@...f.org> writes:

> right now i'm thinking if we can't figure out which cpu/bios
> combinations are safe we might almost be better off doing iommu=soft
> for *all* k8 stuff except for those that are whitelisted; though this
> seems extremely drastic

Do you (someone) have (maintain) a list of affected systems,
including motherboard type and possibly version, BIOS version and
CPU type? A similar list of unaffected systems with 4GB+ RAM could
be useful, too.

I'm afraid with default iommu=soft it will be a mystery forever.
-- 
Krzysztof Halasa
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