linux-kernel - Re: [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v5

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Message-ID: <20080429220953.GI2302@elte.hu>
Date:	Wed, 30 Apr 2008 00:09:53 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Gabriel C <nix.or.die@...glemail.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Mika Fischer <mika.fischer@...pnet.de>
Subject: Re: [PATCH] x86: mtrr cleanup for converting continuous to
	discrete layout v5


* Yinghai Lu <yhlu.kernel@...il.com> wrote:

> agreed. so that feature is compiled in but disable by default.
> 
> BTW: is any chance for OS to disable SMI etc? to verify is the 
> unstatbility is caused by SMI?

i dont think there's any documented way for that. SMI might be the 
mechanism that ensures blue-smoke type of system reliability (CPU fan, 
temperature, etc.) so it would be extremely dangerous to mess with it.

	Ingo
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