linux-kernel - Re: [PATCH] x86: enable PAT support on AMD Duron model 7

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Date:	Wed, 7 May 2008 19:08:48 -0700
From:	Arjan van de Ven <arjan@...radead.org>
To:	Rene Herman <rene.herman@...access.nl>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Adrian Bunk <bunk@...nel.org>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	akpm@...ux-foundation.org, Pavel Machek <pavel@...e.cz>
Subject: Re: [PATCH] x86: enable PAT support on AMD Duron model 7

On Thu, 08 May 2008 04:04:05 +0200
Rene Herman <rene.herman@...access.nl> wrote:

> On 08-05-08 03:57, Rene Herman wrote:
> 
> > Okay, so how's this? Seem to work well for me and makes me happy.
> > Only tested on UP.
> 
> With this on top, I'm ecstatic:
> 
>   x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
> 
> 
> x86: enable PAT support on AMD Duron model 7
> 
> PAT support seems to work well on AMD Duron model 7. Enable it.

have you read the errata sheets for this one?
have you tried various cachability/mtrr combinations (with a new
enough X)?

just booting doesn't say much if the feature won't just randomly
tripple fault later on
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