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    SubjectRe: spin_unlock optimization
    Oliver Henning <> wrote:

    > I think such an optimization is worth it at least on high-end machines. And
    > there is still the possibility of a compile-time option or a patch, right?
    > I'm no expert, so how can those problematic (old PPro) chips be detected,
    > btw?

    As a worst case, we could blacklist all PPro's.
    And then test them on various steppings, and unlist the steppings which work.


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