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    SubjectRE: [discuss] Re: [PATCH] Allow all Opteron processors to change pstate at same time
    Date
    From
    > > Here are the further findings after letting the machine 
    > toggle between
    > > 1GHz and 2.2Ghz every two seconds for roughly 24 hours.
    > Unfortunately
    > > there is an oops after bringing CPU2 online and CPU3 will not come
    > > online. Still the differences in TSC are not bad:
    >
    > Can I get more information on how to reproduce the Oops?
    > Kernel version?
    > .config? your hardware?
    >
    > I have run basic set of CPU Hotplug on/offline tests, and I could not
    > reproduce it..

    There's probably something in my patch that is causing it.
    Are you testing with that?

    Joachim -

    Have you had a chance to measure TSC drift without
    PN? I'd like to know if the patch is making the problem
    worse or not.

    -Mark Langsdorf
    AMD, Inc.


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