From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261763AbTJAKOt (ORCPT ); Wed, 1 Oct 2003 06:14:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261807AbTJAKOs (ORCPT ); Wed, 1 Oct 2003 06:14:48 -0400 Received: from web40602.mail.yahoo.com ([66.218.78.139]:60281 "HELO web40602.mail.yahoo.com") by vger.kernel.org with SMTP id S261763AbTJAKOq (ORCPT ); Wed, 1 Oct 2003 06:14:46 -0400 Message-ID: <20031001101445.62739.qmail@web40602.mail.yahoo.com> Date: Wed, 1 Oct 2003 11:14:45 +0100 (BST) From: =?iso-8859-1?q?Chris=20Rankin?= Subject: Re: APIC error on SMP machine To: jamesclv@us.ibm.com, linux-kernel Cc: R.E.Wolff@BitWizard.nl In-Reply-To: <200309301852.47835.jamesclv@us.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --- James Cleverdon wrote: > An APIC send accept error means that when trying to > send an interrupt, it was not accepted by the target. > In this case, the target is a CPU, either your other > CPU or the same one (a CPU can send itself an > interrupt). ... > 3) Maybe the other CPU is broken and physically > cannot accept the interrupt. Given the background, the most likely cause would seem to be bad a CPU/motherboard connection. I have realised that the APIC error is for CPU1, but I have actually removed CPU0. And a bad CPU0 would explain why "nosmp" didn't work either. It's a pity that "nosmp" doesn't (logially cannot?) take a "boot CPU number" as a parameter. > Do any previous kernels boot? Not any more. Everything started to hit the fan at the beginning of August, and I thought that I had "patched" things by underclocking the FSB. However, that only seems to have delayed the inevitable. CPU slot 2 on my motherboard just seems not to work any more. I have no idea why - it's not like I can see a lot of dust and dirt in there. Oh well, I hear that Dell are selling dual 2.6 GHz Xeons with RedHat preinstalled nowadays. (These should have "hyperthreading support", right ;-) ?) Cheers, Chris ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk