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Date:      Mon, 22 May 2000 15:38:11 -0400
From:      Joy Ganguly <joy@niksun.com>
To:        sthaug@nethelp.no, freebsd-hackers <freebsd-hackers@freeBSD.org>
Subject:   Re: SMP and APIC???
Message-ID:  <39298CA3.1C6F68F2@falcon.niksun.com>
References:  <392982C1.674000DD@falcon.niksun.com> <58375.959022929@verdi.nethelp.no>

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sthaug@nethelp.no wrote:

> > i have compiled freeBSD 3.4 SMP. but when i try to boot it the kernel
> > shows "Testing APIC 8254" and then it hangs. earlier i had run mptable
> > and it showed:I/O APICs:
> > ----------------------
> > {Lots of stuff}....
> >
> >  APIC ID Version State           Address
> >                  2       0x20    usable          0xfec00000
> >                  3       0x20    usable          0xfd8df000
>
> You seem to have two IO APICs. You need
>
> options                NAPIC=2                 # number of IO APICs
>
> in the kernel config, *and* the following patch to sys/i386/i386/pmap.c
> (this patch is in 3.4-STABLE, but not in 3.4-RELEASE).

thanx .... it is working now. though frankly i am still clueless about how it is
working. are there any docs about SMP on freebsd??

joy




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