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Subject: Re: 2.6.12-mm1 boot failure on NUMA box.
From: Lee Revell <rlrevell@joe-job.com>
To: "Martin J. Bligh" <mbligh@mbligh.org>
Cc: Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@osdl.org>,
       linux-kernel@vger.kernel.org, Con Kolivas <kernel@kolivas.org>
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Date: Sat, 25 Jun 2005 17:54:33 -0400
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On Sat, 2005-06-25 at 14:03 -0700, Martin J. Bligh wrote:
> I have no intent, nor method, of doing so. rdtsc is a direct instruction,
> without intervention, as I understand it.

I thought so too, but it turns out the CPU lets you disable it at boot.
This was suggested as a possible fix for the alleged hyperthreading
vulnerability.

Lee