NMI via task gate

[Stefan Scheler]

Hello,

> I'd suggest to use a task gate for your NMI and run it on a completely
> different stack. Because there are parts of code that are extremely
> sensible to NMIs and this is basically the sysenter path of the Fiasco
> kernel.

I tried that (see attached patch). Is that the correct way of
implementing this? It works exactly once. When I reset the counters the
second time I get "APIC error 00000000(00000000)" and the machine freezes.

-- 
Stefan Scheler
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