I've got 4.2 loaded on an older IBM PC320 server with an MCA board and
dual p100's.  Do I need to recompile a custom kernel in order to have
both processors taken full advantage of, or does the generic kernel take
care of that for me?  I'm just been so tickled to have this thing
running after having resurrected it from the s{*filter*}heap that I haven't
taken the time to check it out.  Any takers?
Cheers
BTW:  Gates IS in trouble.  This old tanker sits in my classroom where
my gifted 12 year olds are learning that *nix runs while W9x
crashes...over...and over...etc.

Look in the LINT it will have some ideas on what you need to do for SMP.

Also, there's a command 'mptable' that you can run as root and it will spit
out some possible settings for you :)

I have a 320 (MZ0) as well. I never was able to get a SMP kernel running on
the box. Non-SMP kernels work just fine. I finally switched to *gag* Linux,
and the default SMP kernel installed by every 2.2.x series kernel-based
distro works just fine. It seems that the APIC implementation isn't as
forgiving as Linux's. I'm hoping ferverntly that the 5.x series of FreeBSD
will improve on this.