> > i tried to hack this half a year ago, but had to find out that 4MB pages
> > are only valid for kernel mappings, which means we'd have to make X a ring
> > 0 process too ...
>
> Why? It doesn't seem so difficult to make whatever creates the
> mappings recognize when you have a case appropriate for a 4 MB
> mapping.
4MB mappings simply dont work if you set _PAGE_USER. I tried it on a
pentium.
-- mingo
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