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SubjectRe: Calling current() from interrupt context
> The problem is where to get the cpuid from (see how smp_processor_id
> is currently defined ;) When you don't have a hidden register in the
> CPU you're screwed.
> [x86-64 has one btw]

I dont actually know a CPU that doesnt have one in SMP mode. Its just often
behind an I/O interface that is slower than ideal

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