From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753922AbXKRRPm (ORCPT ); Sun, 18 Nov 2007 12:15:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751772AbXKRRPU (ORCPT ); Sun, 18 Nov 2007 12:15:20 -0500 Received: from wa-out-1112.google.com ([209.85.146.180]:63105 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751187AbXKRRPR (ORCPT ); Sun, 18 Nov 2007 12:15:17 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=m59k85L6pXk/nxeiM2GND/F9pxzVc5aPDY2G8xU2aUjQGTYDi3Drpf/m+3j1570VWyMMXmG03M0YaJs+PvsVeNNM4u8MEvHQrubu8nGW+XvsdORbZxvmsGkV134kGTs4H2dAMOUCqb0ix9ZE3ZLWw5HyPgTEKRR49cv7f5A0mpw= Message-ID: Date: Sun, 18 Nov 2007 12:15:17 -0500 From: "Richard Harman" To: linux-kernel@vger.kernel.org, richard.harman@gmail.com Subject: HP Pavilion DV6408nr timer/irq related? hard lockup MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org (I'm not on the list, please CC me in your replies) I have a HP DV6409nr Pavilion notebook that came preloaded with Windows Vista that Linux doesn't seem to want to boot properly on. Currently, 'noapic noirqdebug' sort-of works for x86_64 kernels, but Vista seems to be able to use the APIC just fine. I've disassembled the BIOS to pull out the bios pirq and routing table and from what I can tell, it's pretty flexible -- Linux and Vista both set up the same IRQs when in APIC mode, save for the HPET. Vista sticks the HPET on IRQ 0 and 8, Linux sticks it on 2, 8, and 31. The two USB controllers get assigned IRQ 22 in both Vista and Linux, but under Linux a few seconds after accessing a USB device causes the system to lock up solid without an oops. Most of all I'm trying to get this laptop running in APIC mode so I can run Xen. This system has no serial port, and USB seems to be problematic; can anyone suggest how to figure out what is causing the lock up? When the system freezes, it locks up so solid that sysrq doesn't work.