Messages in this thread | | | Date | Wed, 29 Jan 2014 09:11:28 +0100 | From | Jan Kiszka <> | Subject | Re: [PATCH] x86: Plug racy xAPIC access of CPU hotplug code |
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On 2014-01-28 22:17, Andi Kleen wrote: > Also with irq-off you of course still always have races against > the NMI-level machine check.
The self-IPI triggered over NMI won't touch the high-part of the ICR and will properly wait for ICR to become free again. So we are safe.
Jan
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