From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262081AbTKLMfs (ORCPT ); Wed, 12 Nov 2003 07:35:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262086AbTKLMfs (ORCPT ); Wed, 12 Nov 2003 07:35:48 -0500 Received: from auth22.inet.co.th ([203.150.14.104]:21264 "EHLO auth22.inet.co.th") by vger.kernel.org with ESMTP id S262081AbTKLMfr (ORCPT ); Wed, 12 Nov 2003 07:35:47 -0500 From: Michael Frank To: linux-kernel@vger.kernel.org Subject: 2.4.22 hangs upon echo > /proc/acpi/alarm Date: Wed, 12 Nov 2003 20:33:18 +0800 User-Agent: KMail/1.5.2 X-OS: KDE 3 on GNU/Linux MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200311122033.18729.mhf@linuxmail.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ACPI version is 20031002 Initial backtrace obtained with kdb: acpi_os_read_port+36 acpi_hw_lowlevel_read+7b acpi_ev_gpe_detect+94 acpi_ev_sci_xrupt_handler+3c acpi_irq+d handle_IRQ_event+31 do_IRQ+72 call_do_IRQ+5 do_softirq+5a do_IRQ+a1 proc_file_write+9b sys_write+be system_call+33 Further stepping shows endless loop around: acpi_ev_gpe_detect+80 acpi_hw_lowlevel_read acpi_os_read_port acpi_ut_get_region_name acpi_ut_debug_print acpi_ut_debug_print jmp acpi_ev_gpe_detect+80 Debugging is compiled in, but no meesages go to dmesg How to enable acpi_ut_debug_print output? Regards Michael