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    SubjectRe: Memory barrier needed with wake_up_process()?
    On Fri, Sep 02, 2016 at 04:16:54PM -0400, Alan Stern wrote:
    > Felipe, your tests will show whether my guess was totally off-base.
    > For the new people, Felipe is tracking down a problem that involves
    > exactly the code sequence listed at the top of the email, where we know
    > that the wakeup routine runs but nevertheless the task sleeps. At
    > least, that's what it looks like at the moment.

    What arch are you seeing this on?

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