From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262008AbULKUXT (ORCPT ); Sat, 11 Dec 2004 15:23:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262009AbULKUXT (ORCPT ); Sat, 11 Dec 2004 15:23:19 -0500 Received: from NEUROSIS.MIT.EDU ([18.95.3.133]:18660 "EHLO neurosis.jim.sh") by vger.kernel.org with ESMTP id S262008AbULKUXQ (ORCPT ); Sat, 11 Dec 2004 15:23:16 -0500 Date: Sat, 11 Dec 2004 15:23:14 -0500 From: Jim Paris To: Alan Cox Cc: Linux Kernel Mailing List Subject: Re: PCI IRQ problems -- update Message-ID: <20041211202314.GA22731@jim.sh> References: <20041211173538.GA21216@jim.sh> <1102783555.7267.37.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1102783555.7267.37.camel@localhost.localdomain> User-Agent: Mutt/1.5.6+20040722i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > The PIIX should be in legacy mode by default in which case it would be > on IRQ 14/15 only. Can you post boot messages ? This is interesting: $ lspci -x -s 1f.1 0000:00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02) 00: 86 80 8a 24 07 00 80 02 02 8e 01 01 00 00 00 00 10: f1 01 00 00 f5 03 00 00 01 00 00 00 01 00 00 00 20: 41 18 00 00 00 00 10 e0 00 00 00 00 f7 10 38 83 30: 00 00 00 00 00 00 00 00 00 00 00 00 ff 01 00 00 The ICH3-M datasheet says offset 0x09 is the Programming Interface register. Default value is 0x8A (legacy on both), value here is 0x8E (legacy on primary, native on secondary). This mixed-mode setting is noted as a disallowed combination in the datasheet. So it looks like my BIOS is screwing me. Where could/should I fix this up? -jim