From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263545AbTLJNzZ (ORCPT ); Wed, 10 Dec 2003 08:55:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263571AbTLJNzY (ORCPT ); Wed, 10 Dec 2003 08:55:24 -0500 Received: from 216-229-91-229-empty.fidnet.com ([216.229.91.229]:54287 "EHLO mail.icequake.net") by vger.kernel.org with ESMTP id S263545AbTLJNzS (ORCPT ); Wed, 10 Dec 2003 08:55:18 -0500 Date: Wed, 10 Dec 2003 07:55:16 -0600 From: Ryan Underwood To: Mikael Pettersson Cc: linux-kernel@vger.kernel.org, acpi-devel@lists.sourceforge.net Subject: Re: [ACPI] IO-APIC on MS-6163 (2.4.23). ACPI? Message-ID: <20031210135516.GA2687@dbz.icequake.net> References: <3ACA40606221794F80A5670F0AF15F8401720C15@PDSMSX403.ccr.corp.intel.com> <20031210125543.GA1444@dbz.icequake.net> <16343.8777.389445.2007@alkaid.it.uu.se> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="+QahgC5+KEYLbs62" Content-Disposition: inline In-Reply-To: <16343.8777.389445.2007@alkaid.it.uu.se> User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --+QahgC5+KEYLbs62 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Dec 10, 2003 at 02:40:25PM +0100, Mikael Pettersson wrote: > Ryan Underwood writes: > >=20 > > Attached dmesg and interrupts with acpi=3Doff. Also attached kernel > > config. > >=20 > > As you see, it acknowledges a local APIC but mentions nothing about > > IO-APIC. So I guess this isn't ACPI issue after all. But, I wonder w= hy > > the IO-APIC isn't being used on this board anymore. There was a > > blacklist entry for it, but it was removed after it was discovered to = be > > in error. >=20 > Your dmesg log doesn't mention any MP-table. With neither ACPI MADT > nor an MP-table the kernel has no way of knowing about any I/O-APIC. >=20 > You do have UP_IOAPIC enabled, so the kernel should look for it. > Please check your BIOS settings, and try with no ACPI at all in the kernel > (just to verify that acpi=3Doff doesn't prevent MP-table parsing). I went back and found the messages corresponding to our previous discussions: http://www.cs.helsinki.fi/linux/linux-kernel/2003-23/1675.html Looks like again I've confused the local APIC with the IO-APIC regarding that blacklist entry. However, I thought 440BX had a IO-APIC built-in to the southbridge. Again, that was proved to be wrong by examining the integrator's guide: ftp://download.intel.com/design/chipsets/designex/29063401.pdf page 99 of the PDF says: "An I/O APIC is required for a DP system and optional for a UP system." So it looks like I've never had an I/O-APIC on this board at all, only a local APIC, and this thread is thus a waste of time. :) In any case, thanks for leading me to the right answer! --=20 Ryan Underwood, --+QahgC5+KEYLbs62 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQE/1yXEIonHnh+67jkRAhxeAJ9npBG8RKnD+YJir1Vovoq3kvgXhgCbBQ0b v9ySVu+Sd24TtYq93/dYqzw= =Orod -----END PGP SIGNATURE----- --+QahgC5+KEYLbs62--