From mboxrd@z Thu Jan 1 00:00:00 1970 From: bert hubert Subject: Re: 2.6.17 -> 2.6.18 regression: cpufreq broken since 2.6.18-rc1 on pentium4 Date: Sun, 30 Jul 2006 20:44:43 +0200 Message-ID: <20060730184443.GA30067@outpost.ds9a.nl> References: <20060730120844.GA18293@outpost.ds9a.nl> <20060730160738.GB13377@irc.pl> <20060730165137.GA26511@outpost.ds9a.nl> <44CCF556.2060505@linux.intel.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <44CCF556.2060505@linux.intel.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cpufreq-bounces@lists.linux.org.uk Errors-To: cpufreq-bounces+glkc-cpufreq=m.gmane.org+glkc-cpufreq=m.gmane.org@lists.linux.org.uk Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Alexey Starikovskiy Cc: akpm@osdl.org, zwane@arm.linux.org.uk, tony@atomide.com, cpufreq@lists.linux.org.uk, linux-kernel@vger.kernel.org, davej@redhat.com On Sun, Jul 30, 2006 at 10:07:18PM +0400, Alexey Starikovskiy wrote: > Do I understand your logs right and acpi-cpufreq is already loaded and > works on your processor? Yes, I can load it, but I'm unable to figure out what it is supposed to do, or if it is doing anything. > Do you have any info in /sys/devices/system/cpu/cpu0/cpufreq ? No, not with just acpi-cpufreq loaded. With the help of Zwane, I've discovered that if I unload acpi-cpufreq, I *can* load p4-clockmod, and then the directory you mention appears, and I can configure governors, and life is good. This all on 2.6.18-rc3. Do I understand correctly that acpi-cpufreq is supposed to offer comparable features? Perhaps acpi-cpufreq *has* loaded, but did not find the proper hooks, but has now registered itself, thus blocking p4-clockmod? When everything is in-kernel, acpi-cpufreq might register itself first, which would lead to the same thing. For completeness, lspci. This is a desktop system, but I need some kind of governer for quiet running. $ lspci 0000:00:00.0 Host bridge: Intel Corporation 915G/P/GV/GL/PL/910GL Processor to I/O Controller (rev 04) 0000:00:01.0 PCI bridge: Intel Corporation 915G/P/GV/GL/PL/910GL PCI Express Root Port (rev 04) 0000:00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Express Chipset Family Graphics Controller (rev 04) 0000:00:1b.0 0403: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03) 0000:00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1 (rev 03) 0000:00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 2 (rev 03) 0000:00:1c.2 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 3 (rev 03) 0000:00:1c.3 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 4 (rev 03) 0000:00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 (rev 03) 0000:00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 (rev 03) 0000:00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03) 0000:00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 (rev 03) 0000:00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller (rev 03) 0000:00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d3) 0000:00:1f.0 ISA bridge: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge (rev 03) 0000:00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller (rev 03) 0000:00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller (rev 03)0000:00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller (rev 03) 0000:06:00.0 Network controller: Techsan Electronics Co Ltd B2C2 FlexCopII DVB chip / Technisat SkyStar2 DVB card (rev 02) 0000:06:08.0 Ethernet controller: Intel Corporation 82562ET/EZ/GT/GZ - PRO/100 VE (LOM) Ethernet Controller (rev 01) Thanks! -- http://www.PowerDNS.com Open source, database driven DNS Software http://netherlabs.nl Open and Closed source services