On Sunday 30 April 2006 08:07, Dave McCracken wrote:
>
> --On Friday, April 28, 2006 10:27:21 +0200 Andi Kleen <[email protected]> wrote:
>
> >> Take a look a little further down the page for the comment.
> >>
> >> In i386 + PAE, pud is always present.
> >
> > I think his problem is that the PGD is always present too (in
> > pgtables-nopud.h) Indeed looks strange.
>
> The PGD is always fully populated on i386 if PAE is enabled. All three of
> the pmd pages are allocated at page table creation time and persist till
> the page table is deleted.
At least with the new flexmmap it sounds like a waste of memory.
-Andi
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