Messages in this thread | | | Subject | Re: [PATCH RESEND] sched/nohz: Affine unpinned timers to housekeepers | From | Mike Galbraith <> | Date | Mon, 24 Aug 2015 16:01:19 +0200 |
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On Mon, 2015-08-24 at 15:36 +0200, Frederic Weisbecker wrote: > On Mon, Aug 24, 2015 at 08:44:12AM +0200, Ingo Molnar wrote: > > 2) > > > > What happens if the boot CPU is offlined? (under CONFIG_BOOTPARAM_HOTPLUG_CPU0=y) > > > > I don't see CPU hotplug callbacks fixing up the housekeeping_mask if the boot CPU > > is offlined. > > We have tick_nohz_cpu_down_callback() which makes sure that the timekeeper, which > is the boot CPU in nohz full, never gets offlined.
Aha.. and it works fine too. (CPU0 told me to go away earlier;)
-Mike
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