Re: Bugs aren't features: X86_FEATURE_FXSAVE_LEAK

From: Andi Kleen
Date: Fri May 05 2006 - 14:11:33 EST


"H. Peter Anvin" <hpa@xxxxxxxxx> writes:

> The recent fix for the AMD FXSAVE information leak had a problematic
> side effect. It introduced an entry in the x86 features vector which
> is a bug, not a feature.

It's a non issue because it affects all AMD CPUs (except K5/K6).
You'll never find a system where only some CPUs have this problem.

-Andi
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