Is CPUFreq build into kernel 2.6.x?

alphaproject · 02-07-2005, 10:34 PM

hmmm... I was interested by this and I felt like giving it a try... However, when I try to

Code:

modprobe powernow-k7

it gives me:

Code:

[root@localhost powernowd-0.90]# modprobe powernow-k7
WARNING: Error inserting processor (/lib/modules/2.6.8.1-12mdk/kernel/drivers/acpi/processor.ko.gz): No such device
FATAL: Error inserting powernow-k7 (/lib/modules/2.6.8.1-12mdk/kernel/arch/i386/kernel/cpu/cpufreq/powernow-k7.ko.gz): Unknown symbol in module, or unknown parameter (see dmesg)

I'm not exactly sure what is wrong, and i have followed all steps I have read here...

Also, If I check dmesg, I come up with this:
powernow-k7: Unknown symbol acpi_processor_unregister_performance
powernow-k7: Unknown symbol acpi_processor_register_performance

wirawan0 · 02-09-2005, 01:02 AM

Now, that's bizzare. Did you use the ACPI? In other words, do you have the subdirectory /proc/acpi in your machine, to begin with?

How about doing this:

dmesg | grep -i acpi

You should see a bunch of messages starting with "ACPI: " if ACPI is enabled. If it _is_ already enabled, then something else is wrong. I'm not sure what to answer, so please bear with me if this sounds like unintelligent.

alphaproject · 02-09-2005, 10:47 PM

Hmmm... o.0 /proc/acpi does not seem to be here...

Any suggestions? Looks like it was excluded from Mandrake 10.1

wirawan0 · 02-10-2005, 12:26 PM

That means that your OS starts without ACPI. I don't believe that ACPI is excluded in Mandrake 10.1, although I haven't seen it myself. How about this...:

* inspect into your /boot/grub/grub.conf file (and show it in this forum, if you don't mind --- just strip the password line if you don't want to expose that :-).

Or do you use LILO? A configuration file for LILO boot loader should then be examined. it may well be that your kernel parameter specifically disables ACPI.

* inspect your /proc/cpuinfo -- can you `cat' this file and include this output here?

Other thing that I can suggest is to examine the dmesg output, to see if there's something unusual.

Wirawan

alphaproject · 02-10-2005, 08:03 PM

aha! My kernel parameters did disable ACPI... I fixed it, and all is well now.

Thanks wirawan