From owner-freebsd-questions@FreeBSD.ORG  Mon Apr 23 18:51:26 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id ECEDD16A40A;
	Mon, 23 Apr 2007 18:51:25 +0000 (UTC)
	(envelope-from tinguely@casselton.net)
Received: from casselton.net (casselton.net [63.165.140.2])
	by mx1.freebsd.org (Postfix) with ESMTP id 96B1E13C4CC;
	Mon, 23 Apr 2007 18:51:25 +0000 (UTC)
	(envelope-from tinguely@casselton.net)
Received: from casselton.net (localhost [127.0.0.1])
	by casselton.net (8.13.8/8.13.8) with ESMTP id l3NIpJo8071371;
	Mon, 23 Apr 2007 13:51:19 -0500 (CDT)
	(envelope-from tinguely@casselton.net)
Received: (from tinguely@localhost)
	by casselton.net (8.13.8/8.13.8/Submit) id l3NIpJ7H071370;
	Mon, 23 Apr 2007 13:51:19 -0500 (CDT) (envelope-from tinguely)
Date: Mon, 23 Apr 2007 13:51:19 -0500 (CDT)
From: Mark Tinguely <tinguely@casselton.net>
Message-Id: <200704231851.l3NIpJ7H071370@casselton.net>
To: freebsd-hackers@freebsd.org, jhb@freebsd.org
In-Reply-To: <200704231428.26118.jhb@freebsd.org>
X-Mailman-Approved-At: Mon, 23 Apr 2007 21:05:09 +0000
Cc: des@des.no, tinguely@casselton.net, freebsd-questions@freebsd.org,
	MTaylor@bytecraft.com.au
Subject: Re: IBM / FreeBSD Install problem
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 23 Apr 2007 18:51:26 -0000


>  John Baldwin <jhb@freebsd.org> says:
>
>  APIC IDs are not programmable (well, they are on I/O APICs, but not local=20
>  APICs).  However, I am working on patches to support all valid APIC IDs for=
>  =20
>  both mptable and MADT.  Bumping up NLAPICS as a temporary workaround should=
>  =20
>  suffice for now.
>
>  =2D-=20
>  John Baldwin

IMO, the quick solution also requires that MAX_APICID in
[amd64/amd64 | i386/i386]/local_apic.c needs to be changed
because lapic_create() checks if the passed apic_id > MAX_APICID.

Also in [amd64/amd64 | i386/i386]/mp_machdep.c checks in cpu_add()
if the passed apic_id >= MAXCPU. There are a couple other checks
in mp_machdep.c before converting to use the cpu_apic_ids[] array.

I was curious, and wrote up a patch file with the potential minor changes
for -current at http://www.casselton.com/~tinguely/acpicid.patch .
I saw one more change needed to use on FreeBSD 6.2-RELEASE.

--Mark Tinguely