From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9) Gecko/2008061712 Fedora/3.0-1.fc9 Firefox/3.0 Description of problem: Noticed that the 2.6.25.x kernels on f8 on a core2 system don't clock down to 800MHz anymore, instead stay at 2GHz. This increases the total system heat on idle, which is unfortunate as it's now summer where I live and thus the ambient temps are higher as well. ;) So, kernel-2.6.24.7-92.fc8 works as expected, but kernel-2.6.25.6-27.fc8 does not. Version-Release number of selected component (if applicable): kernel-2.6.25.6-27.fc8 How reproducible: Always Steps to Reproduce: 1. boot f8 install into 2.6.25 kernel 2. look at cpu monitor 3. look at lm_sensors data Actual Results: CPU temps ~50C Expected Results: CPU temps ~35C Additional info: 00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02) 00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02) 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02) 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02) 00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02) 00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92) 00:1f.0 ISA bridge: Intel Corporation 82801IR (ICH9R) LPC Interface Controller (rev 02) 00:1f.2 RAID bus controller: Intel Corporation 82801 SATA RAID Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02) 01:00.0 VGA compatible controller: nVidia Corporation G71 [GeForce 7300 GS] (rev a1) 03:00.0 IDE interface: JMicron Technologies, Inc. JMB368 IDE controller 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) 05:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link) and cpu info: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz stepping : 11 cpu MHz : 2000.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 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 arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr lahf_lm bogomips : 6003.12 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz stepping : 11 cpu MHz : 2000.000 cache size : 4096 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 fpu : yes fpu_exception : yes cpuid level : 10 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 arch_perfmon pebs bts rep_good pni monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr lahf_lm bogomips : 5999.95 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:
please boot with cpufreq.debug=7 and attach dmesg. also, what does /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies say?
will reboot into 2.6.25.x tonight and provide that info. For 2.6.24.7-92.fc8, /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies says: 3000000 2000000 which is weird as gnome cpu monitor applet says 800, lm_sensors say 35C at idle.
Created attachment 310502 [details] 2.6.25.6-27 dmesg
Created attachment 310503 [details] 2.6.25.6-27 available_freq
Created attachment 310504 [details] 2.6.24.7-92 dmesg
(In reply to comment #3) > Created an attachment (id=310502) [edit] > 2.6.25.6-27 dmesg > Needs to be done with cpufreq.debug=7
Created attachment 312165 [details] 2.6.25-10-47 dmesg w/cpufreq.debug=7
Created attachment 312713 [details] 2.6.26.11-60 dmesg w/cpufreq.debug=7
ping
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