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    SubjectRe: Why preallocate pmd in x86 32-bit PAE?

    On Fri, 16 Nov 2007, Jeremy Fitzhardinge wrote:
    > If you happened to do a 1G munmap, it may end up freeing and
    > reallocating them, but that's going to be very rare.

    I don't think we ever free the pmd's now, do we?

    (Except for the *final* free, of course, when we release the whole VM).

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