On Thu, 10 Jan 2008, [EMAIL PROTECTED] wrote:
>
> x86_64: Map only usable memory in identity map. All reserved memory maps to a
> zero page.
I don't mind this horribly per se, but why a zero page?
Accessing that page without mapping it explicitly would be a bug with
your change - if only because you'd get the wrong value!
So why map it at all? The only thing mapping it can do is to hide bugs.
Linus
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