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    SubjectRe: Per-Processor Data Page

    On Thu, 9 Dec 1999, Alan Cox wrote:

    > Having access the the pid at a fixed address is as good as the %esp trick if
    > not better. Unfortunately it means you now have to rewrite it each context
    > switch or flush the TLB. Both of these suck. [...]

    it's not even possible - think about threads on different processors
    running at once. Which fixed address? Page tables are shared.

    -- mingo

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