Re: [PATCH 03/13] rcu: Exclude all potential timekeepers fromsysidle detection

[Peter Zijlstra]

On Wed, Dec 18, 2013 at 12:49:15AM +0100, Frederic Weisbecker wrote:
> That's to start simple as CPU 0 can't be offlined.

Yes it can, see CONFIG_BOOTPARAM_HOTPLUG_CPU0
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