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    SubjectRe: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit

    * Yinghai Lu <> wrote:

    > fix phys_pmd_init to make sure not to return big value than end.
    > also print out range split:1G/2M/4K

    applied to tip/x86/core, thanks Yinghai. Lets hope it all goes well,
    this is a rather scary change - but it's also fairly clean.

    perhaps add a comment to the limit of 5 of mapping ranges - to point out
    that the number of mapping ranges depends on our programming, not on any
    external factor. I.e. if anyone adds a new mapping range to the kernel
    for any purpose, it must be extended - but otherwise it cannot run out
    due to new hardware.


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