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    SubjectRe: [bug report] sched: stop_machine() usage causes load balancer to misbehave
    Steven Rostedt wrote:
    > On Thu, 2 Oct 2008, Chris Friesen wrote:
    >
    >
    >>I mentioned before that ftrace (specifically the ftraced daemon) seems to be
    >>interfering with the load balancer. After some experimenting, it appears that
    >>any regular calls to stop_machine() will end up confusing the load balancer.
    >>
    >>As an experiment, I disabled ftraced (which would normally result in correct
    >>load balancing) but added a single kernel thread which simply runs the
    >>following loop, where "chrisd2" is a dummy function.
    >
    >
    >
    > Chris,
    >
    > Thanks for looking into this. I don't have an answer for your question,
    > but I'll work harder to get the MCOUNT_REC working in PPC.
    >
    > Does this happen with x86 too?

    Unfortunately I don't have an x86 box handy for testing...I could
    probably get some time on a lab machine next week.

    Chris


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