From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756552AbZERI0Q (ORCPT ); Mon, 18 May 2009 04:26:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753735AbZERIZz (ORCPT ); Mon, 18 May 2009 04:25:55 -0400 Received: from mail-gx0-f214.google.com ([209.85.217.214]:38685 "EHLO mail-gx0-f214.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753137AbZERIZv (ORCPT ); Mon, 18 May 2009 04:25:51 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=lxvvgEmT77Z6s83LEbgZZ6KF3ic6a4d56G6CkyQPKsjuqd7OQN5LjfxD7XdESjHNqj x7aV7FgOPgZjZNEcSlMUV2r9nJ+G3CprXQPj4Q6PrB/Ey3Yd15ZAqrj0tACQ40vpXpdS 6qmAGLqNb3za3VARzL3qtoT/yE2GO9GaekA7s= MIME-Version: 1.0 Date: Mon, 18 May 2009 04:25:51 -0400 Message-ID: <3d2f29dc0905180125x5e7ef51dqf10955a3d44336e2@mail.gmail.com> Subject: Boot problems with 2.6.29.1 - cannot smoothly boot on battery From: Chris Howie To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Folks: I've been running 2.6.29.1 for some time and reported an issue to this mailing list a while ago about the boot process. I believe I have now nailed down the one factor that determines whether I see this issue. The problem arises only when booting or halting my laptop when there is no power plugged in, e.g. the system is running on battery. Sometime after init begins starting services I must hold down a key on the keyboard to convince it to continue booting, otherwise it just hangs. If the system is running on AC then it boots fine. This same problem repeats itself during the halt process if running on battery. This also happens when resuming a suspend-to-disk image, after loading the data from the hard drive, but before control is returned to userspace. The keyboard has no effect on this hang, presumably because the kernel is not listening to the keyboard at this point. When this happens the only solution is to hold the power button and boot normally instead. An issue like this is a serious usability problem for me. I am neither a kernel developer nor hacker, my coding skills applying mostly to userspace applications. If there is anything you need from me to help diagnose this problem please let me know. I am not subscribed so please CC me on replies. Thanks all for your time, -- Chris Howie http://www.chrishowie.com http://en.wikipedia.org/wiki/User:Crazycomputers