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    SubjectRe: [BUG] cpu-hotplug: Can't offline the CPU with naughty realtime processes
    On Wed, May 09, 2007 at 10:47:50AM +1000, Nick Piggin wrote:
    >
    > We've seen the same problem with other stop_machine_run sites in the kernel.
    > module remove was one.
    >
    > Reserving the top priority slot for stop machine (and migration thread, I
    > guess) isn't a bad idea.

    I second this thought.
    The process freezer, if used will only safeguard cpu-hotplug, but not other
    sites which use stop_machine_run.

    >
    > --
    > SUSE Labs, Novell Inc.

    Regards
    gautham.
    --
    Gautham R Shenoy
    Linux Technology Center
    IBM India.
    "Freedom comes with a price tag of responsibility, which is still a bargain,
    because Freedom is priceless!"
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