Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272864AbTHKR1g (ORCPT ); Mon, 11 Aug 2003 13:27:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272874AbTHKR1e (ORCPT ); Mon, 11 Aug 2003 13:27:34 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:52971 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S272864AbTHKRYZ (ORCPT ); Mon, 11 Aug 2003 13:24:25 -0400 Message-ID: <3F37D13D.7080309@pobox.com> Date: Mon, 11 Aug 2003 13:24:13 -0400 From: Jeff Garzik Organization: none User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021213 Debian/1.2.1-2.bunk X-Accept-Language: en MIME-Version: 1.0 To: LKML Subject: Intel ICH5 APIC, ACPI problems in 2.4 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 734 Lines: 22 I have a couple uniprocessor ICH5 systems from different vendors, with similar behavior: 2.6: HyperThreading works, ACPI works, all irqs properly routed 2.4: HT works only works with ACPI enabled, but, ACPI kills the irq routing for the external PCI slots. pci=noacpi or whatever doesn't work. !CONFIG_ACPI + "noapic" fixes irq routing, but then no HT sibling appears. It seems like kernel 2.4.22-rc is missing some ACPI and possibly some APIC fixes? Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/