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From: "Mike Maltese" <mike@pcmedx.com>
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cc: karnes@rsn.hp.com
Subject: Re: SMP on FreeBSD...
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> What modifications do I need to make to the GENERIC configuration to 
> enable a second CPU?

With FreeBSD <= 5.1, you need to add:

options    SMP
options    APIC_IO

5.2's GENERIC kernel is SMP ready.