Bug 181045
Summary: | Frequency scaling not working with Pentium M and speedstep-centrino module | ||||||||
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Product: | [Fedora] Fedora | Reporter: | Fabio Comolli <fabio.comolli> | ||||||
Component: | kernel | Assignee: | Dave Jones <davej> | ||||||
Status: | CLOSED CANTFIX | QA Contact: | Brian Brock <bbrock> | ||||||
Severity: | medium | Docs Contact: | |||||||
Priority: | medium | ||||||||
Version: | rawhide | CC: | pfrields, wtogami | ||||||
Target Milestone: | --- | ||||||||
Target Release: | --- | ||||||||
Hardware: | i386 | ||||||||
OS: | Linux | ||||||||
Whiteboard: | |||||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||||
Doc Text: | Story Points: | --- | |||||||
Clone Of: | Environment: | ||||||||
Last Closed: | 2006-02-19 01:24:30 UTC | Type: | --- | ||||||
Regression: | --- | Mount Type: | --- | ||||||
Documentation: | --- | CRM: | |||||||
Verified Versions: | Category: | --- | |||||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
Cloudforms Team: | --- | Target Upstream Version: | |||||||
Embargoed: | |||||||||
Attachments: |
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Description
Fabio Comolli
2006-02-12 08:15:54 UTC
Created attachment 124553 [details]
Output of /proc/cpuinfo
Created attachment 124554 [details]
This patch found on the internet seems to fix it
I found this anonymous patch on the internet. Applied on the latest vanilla git
seems to fix the problem. Now the cpufreq directory exist. Output of ls -l
follows:
[fcomolli@kepler ~]$ ls -l /sys/devices/system/cpu/cpu0/cpufreq/
total 0
-r--r--r-- 1 root root 4096 Feb 12 09:05 affected_cpus
-r-------- 1 root root 4096 Feb 12 09:05 cpuinfo_cur_freq
-r--r--r-- 1 root root 4096 Feb 12 09:05 cpuinfo_max_freq
-r--r--r-- 1 root root 4096 Feb 12 09:05 cpuinfo_min_freq
-r--r--r-- 1 root root 4096 Feb 12 09:05 scaling_available_frequencies
-r--r--r-- 1 root root 4096 Feb 12 09:05 scaling_available_governors
-r--r--r-- 1 root root 4096 Feb 12 09:05 scaling_cur_freq
-r--r--r-- 1 root root 4096 Feb 12 09:05 scaling_driver
-rw-r--r-- 1 root root 0 Feb 12 09:21 scaling_governor
-rw-r--r-- 1 root root 4096 Feb 12 09:05 scaling_max_freq
-rw-r--r-- 1 root root 4096 Feb 12 09:05 scaling_min_freq
-rw-r--r-- 1 root root 0 Feb 12 09:24 scaling_setspeed
drwxr-xr-x 2 root root 0 Feb 12 09:05 stats
[fcomolli@kepler ~]$
Here is where I found the patch: http://www.ussg.iu.edu/hypermail/linux/kernel/0408.0/1488.html dothan cpu is unsupportable. The patch may work for you, but it definitly doesn't work for others. The problem is we've no way of knowing how the VID's are wired up. |