Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264291AbTKKVbp (ORCPT ); Tue, 11 Nov 2003 16:31:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264292AbTKKVbp (ORCPT ); Tue, 11 Nov 2003 16:31:45 -0500 Received: from ppp-62-245-162-69.mnet-online.de ([62.245.162.69]:7041 "EHLO frodo.midearth.frodoid.org") by vger.kernel.org with ESMTP id S264291AbTKKVbn (ORCPT ); Tue, 11 Nov 2003 16:31:43 -0500 To: Erik Andersen Cc: Julien Oster , Linux Kernel Mailing List Subject: Re: A7N8X (Deluxe) Madness From: Julien Oster Organization: FRODOID.ORG X-Face: #C"_SRmka_V!KOD9IoD~=}8-P'ekRGm,8qOM6%?gaT(k:%{Y+\Cbt.$Zs<[X|e)?:O++jHKTA( Date: Tue, 11 Nov 2003 22:31:42 +0100 In-Reply-To: <20031111210922.GA10102@codepoet.org> (Erik Andersen's message of "Tue, 11 Nov 2003 14:09:22 -0700") Message-ID: User-Agent: Gnus/5.090018 (Oort Gnus v0.18) Emacs/21.2 (gnu/linux) References: <20031111200922.GA9276@codepoet.org> <20031111210922.GA10102@codepoet.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2092 Lines: 55 Erik Andersen writes: Hello Erik, >> > Does it help if you go into the BIOS and set the IDE controller >> > to "Compatible Mode" rather than "Enhanced Mode"? > I have an ASUS mb with that option, but I just checked > your manual and it indeed does not have that option. Unfortunately, yes... > Anyway, the problem I had was that I had my SATA ports > as well as all usb devices sharing the same interrupt > and the resulting interrupt storm was easily seen by > watching /proc/interrupts Well, I guess, that may be the point. With APIC enabled, I have a lot of interrupts available. Without APIC, there are only those available ever since the IBM AT. So, an excerpt of /proc/interrupts without APIC looks like that: 10: 224131 XT-PIC ide2, ide3, usb-ohci, usb-ohci, eth0, EMU10K1 11: 0 XT-PIC NVidia nForce2 14: 61649 XT-PIC ide0 15: 60954 XT-PIC ide1 As you see, IRQ 10 ist really crowded with stuff. ide2 and ide3 are my SATA channels, on USB there's my mouse and sometimes my mobile phone or my pocket pc, eth0 is one quite heavily used ethernet card and my soundcard... well, sometimes it's playing music. And I just typed "ifconfig eth2 up" (I have a 4-port DEC network card in my workstation), today it's unused, but just to see: 10: 233008 XT-PIC ide2, ide3, usb-ohci, usb-ohci, eth0, EMU10K1, eth2 Uh. With ISA cards, long time ago, I was able to select the interrupt for each card myself, either through jumpers or later by using PnP. Is there any such possibility for PCI, or do I just have to accept what the kernel or the mainboard is giving me? Just balancing my devices on the available interrupts might already help. Currently, according to /proc/interrupts, IRQ 3, 4 and 7 are completely unused! Regards, Julien - 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/