From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754192AbYDUUUY (ORCPT ); Mon, 21 Apr 2008 16:20:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751201AbYDUUUL (ORCPT ); Mon, 21 Apr 2008 16:20:11 -0400 Received: from ns.suse.de ([195.135.220.2]:52835 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750773AbYDUUUK convert rfc822-to-8bit (ORCPT ); Mon, 21 Apr 2008 16:20:10 -0400 From: Jean Delvare Organization: SuSE Linux To: Andi Kleen Subject: Re: PCI MSI breaks when booting with nosmp Date: Mon, 21 Apr 2008 22:20:20 +0200 User-Agent: KMail/1.9.6 (enterprise 20070904.708012) Cc: Jesse Barnes , linux-pci@atrey.karlin.mff.cuni.cz, LKML , Pavel Machek , Tejun Heo , Tom Long Nguyen , Randy Dunlap , Jeff Garzik References: <200804172140.02311.jdelvare@suse.de> <200804211043.10410.jbarnes@virtuousgeek.org> <87d4oj6o9a.fsf@basil.nowhere.org> In-Reply-To: <87d4oj6o9a.fsf@basil.nowhere.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200804212220.20577.jdelvare@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andi, Le lundi 21 avril 2008, Andi Kleen a écrit : > Jesse Barnes writes: > > > > Ok, I see this too on my desktop machine. It looks like we're not getting > > interrupts setup correctly in the nosmp case. Still digging through to see > > why though... > > NoSMP disables the io-apic and a lot of modern systems don't work without APIC. > > If you just want to run with a single cpu for testing etc. always use maxcpus=1 > (not 0, that will disable the APIC too) In my case, booting with noapic works fine, so I don't think that the problem is related to APIC being disabled. -- Jean Delvare Suse L3