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    SubjectRe: [PATCH 2/3] x86: mtrr_cleanup: first 1M should be coverred in var mtrrs
    Yinghai Lu wrote:
    > On Sat, Oct 4, 2008 at 6:52 PM, H. Peter Anvin <hpa@zytor.com> wrote:
    >
    >> There are some systems which, apparently, don't have RAM there. Don't ask
    >> me how or why.
    >
    > very old system or
    > very new system only have super big cache?
    >

    Very new system. That's all I know. Don't know if they actually
    shipped, but it caused a lot of problems and I recommended to the OEM
    that they fix that.

    -hpa


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