https://bugzilla.kernel.org/show_bug.cgi?id=73781 Lukasz Majewski <l.majewski@xxxxxxxxxxx> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |l.majewski@xxxxxxxxxxx --- Comment #4 from Lukasz Majewski <l.majewski@xxxxxxxxxxx> --- (In reply to KATO Hiroshi from comment #0) > After I upgraded kernel to 3.14, acpi-cpufreq module cannot be loaded. > Accordingly my laptop's cpufreq doesn't run anymore. > Until kernel 3.13.8, acpi-cpufreq has been loaded automatically as expected. > > If I try to load acpi-cpufreq manually on 3.14, > > # modprobe acpi-cpufreq > modprobe: ERROR: could not insert 'acpi_cpufreq': No such device Why the "No such device" error show up? This is strange. I suppose, that the acpi_cpufreq.ko module was built correctly. Could you share the list of modules to be installed/inserted? Also, I've noticed, that the p4-clockmod is also inserted. Could you compile it in and left the acpi-cpufreq to be inserted as a standalone module? Thanks in advance. > > Strangely if p4_clockmod was loaded initially, acpi-cpufreq can be > loaded sucessfully too. My laptop's cpu is PentiumM though. > > # modprobe p4-clockmod > # modprobe acpi-cpufreq > > In this case, available frequencies are messed up. > > # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies > 212500 425000 637500 850000 1062500 1275000 1487500 1700000 > > On 3.13.8 (This is correct.) > # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies > 1700000 1400000 1200000 1000000 800000 600000 > > > /proc/cpuinfo on Linux version 3.13.8 > processor : 0 > vendor_id : GenuineIntel > cpu family : 6 > model : 9 > model name : Intel(R) Pentium(R) M processor 1700MHz > stepping : 5 > microcode : 0x7 > cpu MHz : 600.000 > cache size : 1024 KB > physical id : 0 > siblings : 1 > core id : 0 > cpu cores : 1 > apicid : 0 > initial apicid : 0 > fdiv_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 2 > wp : yes > flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov > clflush dts acpi mmx fxsr sse sse2 tm pbe bts est tm2 > bogomips : 1199.92 > clflush size : 64 > cache_alignment : 64 > address sizes : 32 bits physical, 32 bits virtual > power management: -- You are receiving this mail because: You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
