From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ducrot Bruno Subject: Re: ACPI PCI routing problem Date: Fri, 11 Jul 2003 14:51:26 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20030711125126.GA22636@poupinou.org> References: <200307110022.29512.adq_dvb@lidskialf.net> <20030711101441.GO7796@poupinou.org> <200307111243.34695.adq_dvb@lidskialf.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <200307111243.34695.adq_dvb-fmPXVN3awWJAJAzL26g0SA@public.gmane.org> Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Andrew de Quincey Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org On Fri, Jul 11, 2003 at 12:43:34PM +0100, Andrew de Quincey wrote: > On Friday 11 July 2003 11:14, Ducrot Bruno wrote: > > On Fri, Jul 11, 2003 at 12:22:29AM +0100, Andrew de Quincey wrote: > > > Hi, I have an Epox 8RDA+ NForce2-based motherboard (uniprocessor, Athlon > > > XP). This board has an IO-APIC with 0x17 pins. I can't tell you much more > > > specific about it, as it is in the nforce2 chipset to which I do not have > > > docs. I'm using kernel 2.5.74, with APIC, IO-APIC, ACPI turned on. > > > > > > First of all, here are the symptoms: > > > > > > Kernel boots OK, devices with IRQs <=15 are fine. However, the system > > > attempts to allocate some devices (e.g. USB) to IRQs 20 and 21, as told > > > by the AML code in my BIOS (more on this later). > > > > How look /proc/interrupts with IO-APIC, but without ACPI (I mean, no > > acpi at all at compile time)? > > Hi, here you go. ACPI disabled, but APIC/IO-APIC left in. Interesting, > everything is set to XT-PIC.... > > During boot it says: Found and enabled local APIC! > But does not have any mention of the IO-APIC. > > CPU0 > 0: 50946 XT-PIC timer > 1: 16 XT-PIC i8042 > 2: 0 XT-PIC cascade > 11: 13 XT-PIC ohci-hcd > 12: 346 XT-PIC ohci-hcd > 14: 1024 XT-PIC ide0 > 15: 18 XT-PIC ide1 > NMI: 0 > LOC: 50874 > ERR: 91 > MIS: 0 > > Then perhaps you may turn off IO-APIC. I know there are troubles with some SiS based system. Though, it may be problematic with NForce2 as well? A Guru of that kind of stuff should help more than me (Alan perhaps?). -- Ducrot Bruno -- Which is worse: ignorance or apathy? -- Don't know. Don't care. ------------------------------------------------------- This SF.Net email sponsored by: Parasoft Error proof Web apps, automate testing & more. Download & eval WebKing and get a free book. www.parasoft.com/bulletproofapps1