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SubjectRe: how many cpus can linux support for SMP?

> there is a 32bit cpu mask, meaning 32 is the absolute max, although Ralf
> Baechle has extended it to 64 in order to support SGI origin 2000's, but
> realistically, linux can only do about 8 before falling on the ground...

Its actually the number of bits in a long so 64 bit archs can boot 64
cpus. I think Kanoj had a hack to do a 128 cpu boot on SGI hardware.

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