Bug 243220 - What happened to cpufreq support ?
Summary: What happened to cpufreq support ?
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 7
Hardware: x86_64
OS: Linux
low
medium
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Brian Brock
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2007-06-07 23:56 UTC by Allan Engelhardt
Modified: 2007-11-30 22:12 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2007-07-12 20:42:00 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)
dmesg output after boot (31.06 KB, text/plain)
2007-06-11 05:48 UTC, Allan Engelhardt
no flags Details

Description Allan Engelhardt 2007-06-07 23:56:39 UTC
Description of problem:

There does not appear to be any cpufreq support in the f7 kernel.

After loading all the cpufreq modules

for m in /lib/modules/$(uname -r)/kernel/drivers/cpufreq/*.ko; do 
mod=$(/bin/basename $m .ko);  modprobe -v $mod; done

there are no /sys/devices/system/cpu/cpu*/cpufreq/ directories (and as a
consequence cpufreq-set (from cpufreq-utils-002-1.1.41.fc6) and the gnome applet
(from gnome-applets-2.18.0-7.fc7) are not functioning.

Version-Release number of selected component (if applicable):

kernel-2.6.21-1.3194.fc7

How reproducible:

Completely.  (Reboot does not fix.)  Am I missing something obvious again?

Steps to Reproduce:
1. Load cpufreq modules as above
2. Verify no /sys/devices/system/cpu/cpu*/cpufreq/ directories
3.
  
Actual results:

No directories

Expected results:

Directories

Additional info:

This worked reliably in fc6 ...

Comment 1 Dave Jones 2007-06-11 05:01:12 UTC
dmesg output please ?


Comment 2 Allan Engelhardt 2007-06-11 05:48:41 UTC
Created attachment 156682 [details]
dmesg output after boot

dmesg output attached, as requested.  I can't see anything terribly relevant
there but then I probably do not know what to look for.

Comment 3 Allan Engelhardt 2007-06-11 22:24:10 UTC
Incidentally, not attempting to load the cpufreq modules during boot but then
doing it manually from the console (the for loop above) produces no output in
/var/log/messages.

Comment 4 Allan Engelhardt 2007-07-12 20:42:00 UTC
The interface has changed for F7.  The /etc/rc.d/init.d/cpuspeed (from
cpuspeed-1.2.1-2.fc7) script does the right thing if you set GOVERNOR in
/etc/sysconfig/cpuspeed.  Do ‘service cpuspeed start’ and you can use the usual
tools (cpufreq-utils-002-1.1.41.fc6) or the
/sys/devices/system/cpu/cpu*/cpufreq/ interfaces.

There is still a bug in cpufreq-applet (from gnome-applets-2.18.0-7.fc7) which
means you cannot change the govenor or speed from that application, but that is
not a kernel bug.

Marking this issue as closed.



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