IIRC, only FreeBSD has any significant multi-CPU support.

Edit: References:

FreeBSD (``Symmetric multi-processor (SMP) systems are generally supported by FreeBSD, although in some cases, BIOS or motherboard bugs may generate some problems.'')
NetBSD (only added to -current tree on 1 Oct, 2002)
OpenBSD (``OpenBSD does not currently support multiple processors (SMP), but will run using one processor on a multi-processor system board.'')


Edited by wfaulk (13/11/2002 09:17)
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Bitt Faulk