> > It introduces security hole: Unrelated tasks now have your top secret
> > value you stored in one of your registers.
>
> Well, that's been my point all along and why I sent the patch. I was not
> asking why leaving the registers alone instead of 0ing them out was not a
> security hole. I was asking why doing so was not backward compatible?
Introducing security hole counts as "poor backcompatibility" to me.
Pavel
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