Re: introduce NMI_AUTO as nmi_watchdog option

[Peter Zijlstra]

On Wed, 2010-01-13 at 10:32 +0100, Ingo Molnar wrote:
> other architectures have NMI concepts as well, such as Sparc64. 

I think both sparc64 and ppc64 fake NMIs by playing games with hw IRQ
priorities and partial masks. But yes.

One interesting 'feature' for the perf-nmi interaction is creating an
idle scheduling class for counters, because as long as there is a
counter present you can use his NMIs to drive the watchdog, but as soon
as there are non left, you need to install one.



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