Subject: Re: Interrupt problems on Iwill DK8N: nForce3 250 + AMD 8131
To: None <>
From: Frank van der Linden <>
List: port-amd64
Date: 03/23/2005 03:48:25
On Wed, Mar 23, 2005 at 01:54:59PM +1200, wrote:
> I'm setting up a dual Opteron system based around an Iwill DK8N motherboard,
> and I would like to run NetBSD on it, having used it successfully on a number
> of
> other machines for a few years now.  However, the amd64 install kernel on the
> v2.0 CD would not boot with my Adaptec 39160 card installed in one of the
> 64-bit
> PCI slots.  The LSI/AMI MegaRAID Elite 1600 in the other 64-bit slot doesn't
> seem to be happy either, but it's the ahc that was the showstopper.  The
> problems seem to be related to interrupts (see attached dmesg).
> I've been reading some of the list traffic and looking up stuff on APICs and
> interrupt routing and things, but I'm basically none the wiser on how to figure
> out what's wrong with my system.

It looks like the MP BIOS information on your board isn't correct; it just
appears to list a 1:1 ioapic pin mapping.

Try a kernel with these things in it:

acpi0 at mainbus0
options 	MPACPI
options 	MPVERBOSE

..and see how that works out.

- Frank