From mboxrd@z Thu Jan 1 00:00:00 1970 From: Serge Stroobandt Subject: cpufreq regression + link to patch Date: Mon, 21 May 2012 10:13:49 +0200 Message-ID: <4FB9F93D.3030103@stroobandt.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=stroobandt.com; s=default; h=Content-Transfer-Encoding:Content-Type:Subject:To:MIME-Version:From:Date:Message-ID; bh=t25n5zgymQiXiD//3Yp65pxmp8YTIGV/wuXiBNFJpHw=; b=AA80Jct3aDycdqApHU4e9UWHsHJdof4wxa9dNXnAsx/cQLiHczN/TX9pJD6srWqs1O3OxKQ91kGOa3FuxRG7g0ipl27Ff//zkwzP+jbARX7QAOaBUJpiEBcZWRJiJi+0; Sender: cpufreq-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: cpufreq@vger.kernel.org Hi, this is to report a cpufreq regression in kernel: $ uname -r 3.2.0-2-amd64 The bug has been reported at least twice and a patch has been proposed: http://permalink.gmane.org/gmane.linux.kernel.cpufreq/4190 http://permalink.gmane.org/gmane.linux.mandrake.bugs/143027 More information: $ sudo cpufreq-info cpufrequtils 007: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpufreq@vger.kernel.org, please. analyzing CPU 0: no or unknown cpufreq driver is active on this CPU maximum transition latency: 4294.55 ms. analyzing CPU 1: no or unknown cpufreq driver is active on this CPU maximum transition latency: 4294.55 ms. $ sudo modprobe -l |grep cpufreq kernel/drivers/cpufreq/cpufreq_stats.ko kernel/drivers/cpufreq/cpufreq_powersave.ko kernel/drivers/cpufreq/cpufreq_userspace.ko kernel/drivers/cpufreq/cpufreq_conservative.ko kernel/drivers/cpufreq/powernow-k8.ko kernel/drivers/cpufreq/mperf.ko kernel/drivers/cpufreq/acpi-cpufreq.ko kernel/drivers/cpufreq/pcc-cpufreq.ko kernel/drivers/cpufreq/speedstep-lib.ko kernel/drivers/cpufreq/speedstep-centrino.ko kernel/drivers/cpufreq/p4-clockmod.ko $ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 6 model name : Intel(R) Pentium(R) D CPU 3.00GHz stepping : 2 microcode : 0xf cpu MHz : 2992.660 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 6 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl vmx cid cx16 xtpr pdcm lahf_lm tpr_shadow bogomips : 5985.32 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 6 model name : Intel(R) Pentium(R) D CPU 3.00GHz stepping : 2 microcode : 0xf cpu MHz : 2992.660 cache size : 2048 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 6 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts nopl pni dtes64 monitor ds_cpl vmx cid cx16 xtpr pdcm lahf_lm tpr_shadow bogomips : 5985.83 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management: motherboard: GA-8i945PM(-RH)