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SubjectRe: [PATCH UPDATED] x86: set PAE PHYSICAL_MASK_SHIFT to 44 bits.
Andi Kleen wrote:
> 43bits might be actally safer because of potential sign bugs.
>
> But of course it won't work anyways likely.
>

I thought about it, but I think we're pretty consistent about putting
pfns into unsigned types. But, yes, you're very marginal at that point.

J


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