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    SubjectRe: [PATCH] x86: mtrr cleanup for converting continuous to discrete layout v5
    On Tue, Apr 29, 2008 at 1:29 PM, Eric W. Biederman
    <ebiederm@xmission.com> wrote:
    > "Yinghai Lu" <yhlu.kernel@gmail.com> writes:
    >
    > > (less memory + fast X) or (more 8M RAM + slow...)
    >
    > Yes. That is the basic question. Not all X drivers need it and
    > potentially the current kernel drm modules can use the
    > PAT infrastructure that has been merged.
    >
    > Further a SMM monitor running 100 times or more slower may cause
    > problems if SMM mode is entered frequently, slowing down the entire
    > system not just X.
    >
    > So if you don't have X or you have a crazy SMM monitor this can
    > be an issue.

    agreed. so that feature is compiled in but disable by default.

    BTW: is any chance for OS to disable SMI etc? to verify is the
    unstatbility is caused by SMI?

    YH


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