From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Clifton Subject: HP Compaq nc6320 - Booting on battery power causes softlock Date: Wed, 17 Jan 2007 02:56:36 +0000 Message-ID: <1169002596.29755.5.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from ppsw-3.csi.cam.ac.uk ([131.111.8.133]:56121 "EHLO ppsw-3.csi.cam.ac.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751973AbXAQC4n (ORCPT ); Tue, 16 Jan 2007 21:56:43 -0500 Received: from acc9f2d9.ipt.aol.com ([172.201.242.217]:49391 helo=[192.168.1.71]) by ppsw-3.csi.cam.ac.uk (smtp.hermes.cam.ac.uk [131.111.8.153]:465) with esmtpsa (LOGIN:pcjc2) (SSLv3:RC4-MD5:128) id 1H70yb-0000It-Ac (Exim 4.63) for linux-acpi@vger.kernel.org (return-path ); Wed, 17 Jan 2007 02:56:37 +0000 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Hi, I've got an issue with my HP Compaq nc6320, where it won't boot off its battery without softlocking on CPU#0. I remember it booting ok off battery occasionally in the past, but once I've seen the fault - the only way I can get it to boot is off AC. (I usually boot off AC anyway). I'm presuming ACPI as a good starting point, since that is an area where AC / Battery may make a difference. Can anyone suggest a debugging procedure to identify the cause of a softlock, and where would be appropriate (which category) to file a kernel bug for this? -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!)