Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763433Ab3ECT2i (ORCPT ); Fri, 3 May 2013 15:28:38 -0400 Received: from hydra.sisk.pl ([212.160.235.94]:57078 "EHLO hydra.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1763076Ab3ECT2g convert rfc822-to-8bit (ORCPT ); Fri, 3 May 2013 15:28:36 -0400 From: "Rafael J. Wysocki" To: Toralf =?ISO-8859-1?Q?F=F6rster?= , Dirk Brandewie Cc: linux-acpi@vger.kernel.org, Linux Kernel , Linux PM list , Dirk Brandewie Subject: Re: 3.9.0 + CONFIG_X86_INTEL_PSTATE=y -> ThinkPad T420 with i5 lost ACPI functionality Date: Fri, 03 May 2013 21:36:54 +0200 Message-ID: <3715884.H8PIhhjRXL@vostro.rjw.lan> User-Agent: KMail/4.9.5 (Linux/3.9.0+; KDE/4.9.5; x86_64; ; ) In-Reply-To: <5183EC09.9080208@gmx.de> References: <5183EC09.9080208@gmx.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1430 Lines: 42 On Friday, May 03, 2013 06:55:37 PM Toralf Förster wrote: > The following file doesn't exists at my Gentoo Linux > /sys/devices/system/cpu/cpufreq/ondemand/ignore_nice_load > in 3.9.0 if I activate CONFIG_X86_INTEL_PSTATE=y > > That means, that a command like > > $> echo 1 > /sys/devices/system/cpu/cpufreq/ondemand/ignore_nice_load > > in /etc/rc.local is now no longer working. > A high fan + high temperature are the result, even if just the BOINC client > is run with low prio (nice 19) in the back ground. > > Manually loading the missing module won't work too : > > $> modprobe acpi_cpufreq > modprobe: ERROR: could not insert 'acpi_cpufreq': Device or resource busy > > Is the behaviour a bug or a feature ? The thermal management problem is not an intentional outcome, definitely. > In the later case: How can I achieve the previous behaviour back ? > > This issue might affect the RH EL kernel too [1] where I observed a similar behaviour. > > > [1] http://elrepo.org/bugs/view.php?id=379 Dirk, is this the problem we were talking about recently or something else? Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/