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    SubjectRe: gcc-3.2 breaks rmap on s390x
    On Thu, 3 Apr 2003, Pete Zaitcev wrote:

    > cpu_relax();
    > + barrier();

    Gah, now I look over the source I see that cpu_relax() is always
    used together with barrier() ...

    I guess the best long-term thing (2.5) would be to build a barrier
    into cpu_relax(), but for 2.4-rmap I'll just add your patch.

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