From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965508AbXCLKag (ORCPT ); Mon, 12 Mar 2007 06:30:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965514AbXCLKag (ORCPT ); Mon, 12 Mar 2007 06:30:36 -0400 Received: from mx2.suse.de ([195.135.220.15]:37505 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965508AbXCLKaf (ORCPT ); Mon, 12 Mar 2007 06:30:35 -0400 To: Troy Benjegerdes Cc: linux-kernel@vger.kernel.org Subject: Re: Debugging x86_64 apic & bootup problems on the Cray XD1 References: <20070311223802.GB27026@narn.hozed.org> From: Andi Kleen Date: 12 Mar 2007 12:29:54 +0100 In-Reply-To: <20070311223802.GB27026@narn.hozed.org> Message-ID: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 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 Troy Benjegerdes writes: > I am attempting to make a 2.6.20 kernel boot on a Cray XD1 node with a > Mellanox InfiniBand card installed, however both the ancient supplied > cray 2.6.5 suse derivative, and a 2.6.20 kernel I just booted fail > on APIC initialization. > > Below is a diff of boot-up logs from a node without the mellanox IB > card, and one with.. Does anyone have some pointers on debug options I > should start turning on? apic=debug But most likely it's not related to the APICs anyways. Is there some way I can disable some of the > memory regions in the infiniband card via some early PCI init code > before APIC's are set up? Sure, you can code anything. There isn't a standard way to do this though. -Andi