Date: Mon, 21 Nov 2005 18:38:55 +0100
From: Andrea Arcangeli <andrea@cpushare.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: disable tsc with seccomp
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On Mon, Nov 21, 2005 at 06:24:44PM +0100, Andi Kleen wrote:
> I don't believe theoretical, unlikely to be usable in any way

Demonstrate it if you can.

The fact is that the closest thing to a demonstration that we have,
demonstrated the opposite of what you claim, so you'll have an hard
time to convince me about your point given you've no way to demonstrate
it.

I can guarantee that my machine is safe by running top, the only thing
that escapes the easy "top" check is CPUShare and I want to fix it,
since I can. 

> And in addition your change doesn't even close that channel
> in theory.

The the PCE is red herring, since it's a zero-cost addition.
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