Re: [PATCH 1/10] Cr4 is valid on some 486s

[Alan Cox]

On Sul, 2005-11-13 at 20:00 +0100, Andi Kleen wrote:
> It's a bad hack anyways. Better would be probably to use a uncached WC write.
> I would rather use that.

I'm not clear that anything but lock operations have the required
guarantee of atomicity relative to bus masters which are not processors.
Especially so on intel.

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