From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262035AbULLAR1 (ORCPT ); Sat, 11 Dec 2004 19:17:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262037AbULLAR1 (ORCPT ); Sat, 11 Dec 2004 19:17:27 -0500 Received: from 82-43-72-5.cable.ubr06.croy.blueyonder.co.uk ([82.43.72.5]:51184 "EHLO home.chandlerfamily.org.uk") by vger.kernel.org with ESMTP id S262035AbULLARX convert rfc822-to-8bit (ORCPT ); Sat, 11 Dec 2004 19:17:23 -0500 From: Alan Chandler To: Alan Cox Subject: Re: ide-cd problem revisited - more brainpower needed Date: Sun, 12 Dec 2004 00:17:22 +0000 User-Agent: KMail/1.7.1 Cc: Linux Kernel Mailing List , Jens Axboe References: <200411201842.15091.alan@chandlerfamily.org.uk> <200412102132.41512.alan@chandlerfamily.org.uk> <1102720480.3271.79.camel@localhost.localdomain> In-Reply-To: <1102720480.3271.79.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200412120017.22249.alan@chandlerfamily.org.uk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Friday 10 December 2004 23:14, Alan Cox wrote: > On Gwe, 2004-12-10 at 21:32, Alan Chandler wrote: > > All the above output is a result of the command (as root) using linux > > 2.6.10-rc2 (with acpi turned off to avoid that bug)ยท > > Is local apic enabled ? I don't understand what you mean > > > So what do I do next? Why would the hardware work this way - is it a bug > > in the firmware?, is there a subtle timing problem causing interrupts to > > re-enter... should I just junk the hardware and start again? Help! > > A purely armwaving guess of the moment is that if the IRQ routing is > confused over edge versus level trigger then you would see extra > interrupts. Does the drive work in another PC (I forget if you tried > that) I am doing all this at home on a personal level, so I am somewhat restricted. My normal CDRW machine is an Athlon 2100+ running on an Elite K7S5A motherboard. I have a server running Celeron 1.7G and PlatiniX (Intel 845 Chipset) motherboard. I moved the CDRW over to it and tried it. I didn't have time to build a special version of the system for it, and its running debian sarge with 2.6.8.1. It failed to work, the symptoms were similar but slightly different. -- Alan Chandler alan@chandlerfamily.org.uk First they ignore you, then they laugh at you, then they fight you, then you win. --Gandhi