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Date:      Sat, 3 Aug 2002 18:39:04 -0700
From:      Nathan Kinkade <nkinkade@dsl-only.net>
To:        jdeakle@dfxg.com
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: SMP help
Message-ID:  <20020803183904.4fcc3539.nkinkade@dsl-only.net>
In-Reply-To: <3D4C4A5B.5792C88@dfxg.com>
References:  <3D4C4A5B.5792C88@dfxg.com>

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On Sat, 03 Aug 2002 16:25:47 -0500
Jeff Deakle <jdeakle@dfxg.com> wrote:

> I just installed 4.6 on my duel CPU system.  I added the below lines
> to the Kernel config file just I had done for ver 4.0. (Which worked
> great) Now, when I run 'config KERNEL' I get an error "unknown option"
> for NINTR, NAPIC, NBUS & NCPU.
> 
> Her is a clip form my kernel config file.  Again, this same config
> worked great for 4.0.
> 
> # To make an SMP kernel, the next two are needed
> options 	SMP			# Symmetric MultiProcessor Kernel
> options 	APIC_IO			# Symmetric (APIC) I/O
> # Optionally these may need tweaked, (defaults shown):
> options 	NCPU=2			# number of CPUs
> options 	NBUS=4			# number of busses
> options 	NAPIC=1			# number of IO APICs
> options 	NINTR=24		# number of INTs

I wonder if those options are outmoded?  I just cvsuped RELENG_4 a few
days ago and rebuilt my SMP system with with only options SMP and
APIC_IO.  I haven't benchmarked the system but the kernel reports that
it is launching CPU 1.  Also, the current LINT doesn't mention anything
about those options either.

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