Re: [PATCH 1/2] perf x86: Make intel_pmu_enable_all to enable onlyactive events

[Peter Zijlstra]

On Mon, Aug 19, 2013 at 04:31:31PM +0200, Stephane Eranian wrote:
> Yeah, I think you can have one NMI pending because it came
> while you were already servicing an NMI interrupt. Though, this
> is very unlikely.

Yeah exceedingly rare. I'm also fairly certain I've had NMIs right after
clearing EN bits. Although I cannot remember if that was on Intel or AMD
hardware, nor on what specific model :/
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