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Date:      Sun, 19 Oct 1997 09:41:54 -0600
From:      Steve Passe <smp@csn.net>
To:        dan@math.berkeley.edu (Dan Strick)
Cc:        freebsd-smp@freebsd.org
Subject:   Re: multiple I/O APICs 
Message-ID:  <199710191541.JAA12019@Ilsa.StevesCafe.com>
In-Reply-To: Your message of "Sun, 19 Oct 1997 07:28:11 PDT." <199710191428.HAA13450@math.berkeley.edu> 

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Hi,

> The io_apic_setup() routine in mpapic.c doesn't like my motherboard.
> It says "panic io_apic_setup: apic #1".  The problem seems to be that
> the motherboard has more than one I/O APIC and this is not supported.
> 
> Please forgive this possibly stupid question, but I am not yet familiar
> with the Intel 1.4 MP spec.  Can I configure the kernel to just ignore
> the second I/O APIC that it doesn't know how to use?  If I set NAPIC
> to 1 in the config file, the kernel panics when it starts and tells
> me that I must reconfigure it with NAPIC set to 2.
> 
> I am not certain about the motherboard's correct name or model number.
> I thought the machine was an Intel "AP450GX MP Server System", but none
> of the manuals or papers that came with it, including the rather bulky
> installation manual, carry any model name or number.

there should be an option in the BIOS to disable the second APIC.

--
Steve Passe	| powered by 
smp@csn.net	|            Symmetric MultiProcessor FreeBSD





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