From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756029AbZCBPOY (ORCPT ); Mon, 2 Mar 2009 10:14:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755595AbZCBPOG (ORCPT ); Mon, 2 Mar 2009 10:14:06 -0500 Received: from hosting.visp.net.lb ([194.146.153.11]:47603 "EHLO hosting.visp.net.lb" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754820AbZCBPOE (ORCPT ); Mon, 2 Mar 2009 10:14:04 -0500 X-Greylist: delayed 533 seconds by postgrey-1.27 at vger.kernel.org; Mon, 02 Mar 2009 10:14:04 EST From: Denys Fedoryschenko Organization: VISP To: linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , cpufreq@vger.kernel.org, davej@redhat.com Subject: 2.6.28 - 2.6.29-rc6-git5 regression, p4-clockmod/cpufreq probably Date: Mon, 2 Mar 2009 17:04:59 +0200 User-Agent: KMail/1.9.9 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200903021704.59663.denys@visp.net.lb> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Please CC me, i am not on linux-kernel maillist Hardware: Asus EEE 702, CPU: Intel Celeron 900 Mhz On 2.6.28 p4-clockmod available, and i can manage governor, frequency and etc over cpufrequtils. On 2.6.29-rc6 (git5 tested also) also shown in dmesg as available, but i can't change anything. root # cpufreq-info cpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006 Report errors and bugs to linux@brodo.de, please. analyzing CPU 0: no or unknown cpufreq driver is active on this CPU There is no noticeable differences in dmesg. Both have [ 2.438474] p4-clockmod: P4/Xeon(TM) CPU On-Demand Clock Modulation available Here is end of strace on cpufreq-info lstat64("/sys/devices/system/cpu/cpu0/", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 lstat64("/sys/devices/system/cpu/cpu0/", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 write(1, "analyzing CPU 0:\n"..., 17analyzing CPU 0: ) = 17 stat64("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", 0xbfbce570) = -1 ENOENT (No such file or directory) open("/proc/sys/cpu/0/speed", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq", 0xbfbce570) = -1 ENOENT (No such file or directory) stat64("/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver", 0xbfbce580) = -1 ENOENT (No such file or directory) write(1, " no or unknown cpufreq driver is"..., 53 no or unknown cpufreq driver is active on this CPU ) = 53 stat64("/sys/devices/system/cpu/cpu0/cpufreq/affected_cpus", 0xbfbce460) = -1 ENOENT (No such file or directory) stat64("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq", 0xbfbce560) = -1 ENOENT (No such file or directory) stat64("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", 0xbfbce460) = -1 ENOENT (No such file or directory) stat64("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors", 0xbfbce560) = -1 ENOENT (No such file or directory) stat64("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor", 0xbfbce570) = -1 ENOENT (No such file or directory) If you need more information, let me know.