From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264970AbUGAM7c (ORCPT ); Thu, 1 Jul 2004 08:59:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264941AbUGAM7c (ORCPT ); Thu, 1 Jul 2004 08:59:32 -0400 Received: from mailgate.internet.lu.0.218.195.in-addr.arpa ([195.218.0.131]:50194 "EHLO LUXEMBOU-OFCR7X.mailgate.internet.lu") by vger.kernel.org with ESMTP id S265022AbUGAM73 (ORCPT ); Thu, 1 Jul 2004 08:59:29 -0400 From: Gilles Schintgen To: linux-kernel@vger.kernel.org Date: Thu, 1 Jul 2004 14:58:40 +0200 User-Agent: KMail/1.6.1 MIME-Version: 1.0 Content-Disposition: inline Cc: Sascha Wilde Subject: Kernel 2.6.x reboot hangs on AMD Athlon System Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <200407011458.40831.gschintgen@internet.lu> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, My computer always hangs on reboot when I'm using a 2.6.x kernel. There was already such a thread on the LKML but no solution was found. http://lkml.org/lkml/2004/4/4/75 http://lkml.org/lkml/2004/3/12/248 (longer description) Problem: -------- When using 2.6.x my machine always locks up at reboot. This is the case for both a regular shutdown -r now and also by SysRq. I tested this with kernels 2.6.2, 2.6.5, 2.6.6, and 2.6.7. The lockup occurs right at the end, just before the machine would normally reboot. Kernels 2.4.x don't have this problem. What is interesting about it, is that rebooting always worked fine with 2.6.0, 2.6.2 and 2.6.5. The problem only appeared about the same time I first compiled hardware sensors support. I'm not 100% sure about the exact time, but I noticed it soon after I changed my kernel configuration to include i2c support (with the w83781d and eeprom modules). Is it possible that such a module could change some persistent hardware state? After that, I tried with my old 2.6.2 kernel (which didn't include i2c support at all). It could no longer reboot. I then compiled a very basic i386-compatible 2.6.7 kernel with only generic drivers (no Irongate-IDE etc.). Same problem. A 2.6.x-based SuSE 9.1 LiveCD has the same problem. Older 2.4.x-based Knoppix-CDs reboot without a hitch. A FreeBSD 4.5 Installation CD can also reboot. Hardware: --------- CPU: AMD Athlon(tm) Processor 700MHz Stepping 1 Motherboard: BIOSTAR M7MKA (Irongate) BIOS: Award BIOS, 12/23/1999 The author of the aforementioned thread also has an Irongate-based motherboard. Software: --------- Gentoo gcc 3.3.3 glibc 2.3.2 binutils 2.14.90.0.8 I don't know what other information could be useful. I would appreciate it very much if anyone could give me some hints on what else to try. Please CC me in any reply, I'm not subscribed to the LKML. Regards, Gilles