Re: [PATCH v6 2/3] CPU hotplug, stop-machine: Plug race-window that leads to "IPI-to-offline-CPU"

[Peter Zijlstra]

On Fri, May 23, 2014 at 03:42:20PM +0530, Srivatsa S. Bhat wrote:
>        Re-enable interrupts                          Re-enable interrupts
> 
>                                                      The pending IPI is noted
>                                                      immediately, but alas,
>                                                      the CPU is offline at
>                                                      this point.
> 

So wasn't clear_local_APIC() (and the arch function __cpu_disable() in
general) wipe all pending interrup state?

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