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    SubjectRe: [PATCH] nohz: no softirq pending warnings for offline cpus

    * Heiko Carstens <> wrote:

    > From: Heiko Carstens <>
    > After a cpu was taken down during cpu hotplug (read: disabled for interrupts)
    > it still might have pending softirqs. However take_cpu_down makes sure
    > that the idle task will run next instead of ksoftirqd on the taken down cpu.
    > The idle task will call tick_nohz_stop_sched_tick which might warn about
    > pending softirqs just before the cpu kills itself completely.
    > However the pending softirqs on the dead cpu aren't a problem because they
    > will be moved to an online cpu during CPU_DEAD handling.
    > So make sure we warn only for online cpus.
    > Signed-off-by: Heiko Carstens <>
    > ---
    > kernel/time/tick-sched.c | 2 +-
    > 1 file changed, 1 insertion(+), 1 deletion(-)

    applied to tip/timers/nohz, thanks Heiko!


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