Subject: Re: Heads up: i386 MP config change
To: Frank van der Linden <>
From: None <>
List: current-users
Date: 01/08/2003 08:07:43
> I have added code to the i386 port to retrieve MP and interrupt
> routing info via ACPI. Since this is an alternate method to
> getting the info from the MP BIOS, I made them both optional.
> If you have an MP kernel config file, you must add the new MPBIOS
> option to use MP BIOS configuration as before. You can experiment
> with the MPACPI option (it's experimental at the moment, although
> I have tested it on various systems), by enabling:
> 	options MPACPI
> 	acpi* at mainbus?
> If you have a modern board with just one processor, you can also
> use this option to enable the I/O APIC that it may have, and
> get better interrupt performance (less sharing of interrupts
> if the board manufacturer did his job right). To do that,
> also enable the
> 	ioapic* at mainbus?
> ..line in the config file.
> For MP kernels, if both MPBIOS and MPACPI are defined, MPACPI will
> be tried first. If it fails somehow, it'll fall back to MPBIOS.
> As I said, it's a bit experimental for now, but let me know if
> it works for you, both on MP and UP systems. Include a dmesg
> output if possible.

G'day Frank,

I've just synchronized my source tree and get the following error message:

/sys/arch/i386/compile/HUSKY/../../../../arch/i386/i386/mainbus.c:58: opt_mapci.h: No such file or directory

This file appears to be missing. Will re-test once this file becomes available.

cheerio Berndt