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    SubjectRe: [PATCH] x86: set PAE PHYSICAL_MASK_SHIFT to match 64-bit
    On Thu, 05 Jun 2008 16:21:14 +0100
    Jeremy Fitzhardinge <jeremy@goop.org> wrote:

    > When a 64-bit x86 processor runs in 32-bit PAE mode, a pte can
    > potentially have the same number of physical address bits as the
    > 64-bit host ("Enhanced Legacy PAE Paging").
    >

    the problem on 32 bit is that if you have that much ram, you run out of
    lowmem FAST.... so you have bigger problems.

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