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    SubjectRe: [git pull] tracing fixes

    On Fri, 18 Jul 2008, Ingo Molnar wrote:
    > ok, figured it out today: the lockups were due to the NMI watchdog and a
    > missing NMI protection in cpu_clock(). I've reactivated the topic that
    > solves this problem area and it all works fine now.
    > the sched.o change probably made a difference just because it reduced
    > the cross section between the NMI watchdog and the scheduler, making
    > lockups less likely during the ftrace self-test. I'll revert it once the
    > tracing/nmisafe is upstream.


    Thanks a lot for looking into this.

    -- Steve

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