Bug 2920

there is the same pb wih mandriva 2010.2 and kernel server 2.6.33.7-2

Thomas, is this something you'd know anything about?

CC: (none) => tmb

same pb with mandriva 2010.2 and mib kernel desktop nrj-pae.

it seems there is a compliancy problem with pae technology

ok i made some experiments

instead of using "ondemand" profile i use "conservative" profile
then
no pb

my cpu is an AMD Athlon 64 X2 dual core 5000+

contents of scaling_available_governors :

ondemand conservative powersave userspace performance

contents of scaling_available_frequencies

2600000 2400000 2200000 2000000 1800000 1000000 

running modules by default (lsmod)

powernow_k8
cpufreq_conservative
cpufreq_ondemand
cpufreq_powersave

i don't use cpu freq-utils tro set the profile

i use a script :

#!/bin/bash 
for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; 
do echo conservative > $file; done

i made an error.

with "conservative" profile i have the same problems.

hypothesis : a vboxdrv problem ?

(In reply to comment #7)
> hypothesis : a vboxdrv problem ?

I'am sure, there was an update of Virtualbox, I guess this bug is still valid ?

Source RPM: (none) => cpufreq

yes this bug is still valid

does the same problem exist in cauldron?

are there Mandriva and MIB bug reports about this issue?

did anyone have time to search upstream or in other distro's?

CC: (none) => marja11

(In reply to comment #10)
> does the same problem exist in cauldron?
> 
i can't install mageia2 alpha3 DVD iso with my usb key and we can't install it directly from the iso in disk

> are there Mandriva and MIB bug reports about this issue?
> 
yes

https://qa.mandriva.com/show_bug.cgi?id=63819

I don't manage to find the current upstream home, only http://www.kernel.org/pub/linux/utils/kernel/cpufreq, but nothing happened there since 2005

I spent too much time trying to find the correct link to upstream. 

a google search for cpufreq* freeze* 2012 gives way too many hits, maybe there is an error message that can be added to the search string.

@ episteme

can you please attach the part of /var/log/messages from starting your system until the freeze or reboot during startup?

and maybe the same for when the freeze/reboot happens while starting or running KDE, in a separate attachment.

cc'ing the committers of cpufreq

@ eandry, kamil

isn't there a debug package for cpufreq? I look over it

(Please assign to yourself and set the status to 'assigned' if you are working on it)

CC: (none) => eandry, n54

Created attachment 1480 [details]
messages file when using cpufreq

i activate cpufreq at 2012 feb 1, 11 h 52
then
10 or 20 s after the system reboots

just testing something, sorry for the noise

CC: (none) => marja11

mageia 2 beta 2 x86_64 last kernel 3.3 (22 march 2012)

i install cpufreq-utils packet
then
as root i enter "cpufreq -r -g ondemand"
then
immediately kde desktop freezes
then
i must restart pc

Mageia 2 beta 3 x86_64

there is an improvement

using "performance" profile : no freeze

but

using "ondemand" profile : freeze

i type
cpufreq -r -g ondemand
then
 i see the frequence of the 2 cores switches to 1000 MHz
then
i try to use an app then desktop freeze
then
i must restart the pc

my cpu is an AMD 64 X2 dual core 5000+

another pb

i want to record "ondemand" profile
then
i add the statement
governor=ondemand
in
/etc/sysconfig/cpufreq file
then
i reboot
then
with cpufreq-info i see "performance" profile is in use !

we can't record a powermanagement profile

hypothesis : a sytemd problem

something is not started before profile setting ?

bad timing between powernow_k8 driver and cpufreq daemon ?

/etc/sysconfig/cpufreq file is not the conf file of cpufreq daemon ?

mageia 2 rc

i can't use mageia

mageia freezes after a short time

with
- kde
- icewm
- failsafe mode

addendum :

i have not time to change to "performance" profile"
because
i have not time to install cpufreq-utils according to use cpufreq-set

i made again some intensive google searches
this time i found some new knowledge.

i assume the pb turns around the hardware (asus m2n), bios, kernel, acpi, cpufreq

the 2 things i can do :
- update bios
- turn off acpi 

update bios is to dangerous, i need my pc

i choose to test this solution :

- turn off acpi
- do not use cpufreq

thus

in kernel boot statement i add "acpi=off"
and
i don't load powernow_k8

then

this is the bios (cool and quiet amd software) which manages cpu frequence scaling

this works well but i wait one day more to say it is a good workaround

is there a technician who can  says to me what functions are then disabled
by turning off acpi with a desktop ?

>update bios is to dangerous, i need my pc
not really if you follow carefully the process

and iirc you have do to nothing with cpufreq since it's include in the kernel

<< you have do to nothing with cpufreq since it's include in the kernel

yes i know cpufreq is include in the kernel. what do you mean ?

i note this :

the limit are with :

- cpufreq kernel module : 1000 MHz , 2600 MHz

- cool and quiet : 48 MHz , 3018 MHz

the accuracy of the frequencies are with :

- cpufreq kernel module : wx00 MHz
for example 1000, 1200, 2000,2400, 2600

- cool and quiet : wxyz MHZ

for example 245 MHz or 868 MHZ or 2041 MHz

is there a way to have this accuracy with cpufreq kernel module ?

is there a way to have same limits as 48 MHz and 3018 MHz ?

i updated the bios of the asus m2n board to the last 0902 bios

this solves the freeze pb with ... mandriva 2010.2 i586+kernel 3.1.6 pae
but
not with mageia 2 rc x86_64+ kernel 3.3.6

if i use "ondemand" profile with linux failsafe
then
it freezes
then
it is not a x.org, kde, nvidia 295.x, nvidia ethernet, ralink wifi pb

where is the difference ?

after testing

mandriva 2010.2 i586 +kernel 3.1.6 +pae :  delay to freeze 10 mn

mageia 2 rc x86_64 + kernel 3.3.6 : delay to freeze 1 mn

then pb is still there

i made google searches, result :

between about after around kernel 2.6.27 and till around kernel 3.x.y cpufreq support disappears. only performance profile was supplied.

now with kernel 3.3.6 i check that all profiles are supplied
but
it seems that for a quantity of cpu there is always pb, cpufreq seems buggy

mageia 2 x86_64

pb still there

by default the profile is "ondemand"

eacch time with a delay of about 20 s system freezes

i swithed to performance profile then no pb

ok now i understand the pb.

cpufreq-info says profile list is users,performance.
mageia default install set profile to "ondemand" which is not in the list !

but the real pb is : the profile list must be adaptive, ondemand, users, performance because :
- cool and quiet feature is enable in the bios for my amd x2 64 cpu
- with old kernel as mandriva 2.6.33.7 desktop the profile list is powersave, ondemand, conservative, users, performance

i assume something is not well set in the kernel source settings (before compilation)
i assume in the kernel source settings adaptive and ondemand are not enable

what do you think of this :

[root@localhost ~]# zgrep CPU_FREQ /proc/config.gz
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=m
CONFIG_CPU_FREQ_STAT=m
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=m
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
[root@localhost ~]#

replace :
- adaptative by powersave, conservative in my comment #28
- enable by activated

is there a way (command line) to activate powersave and conservative ?

freeze is a hardware pb, a ram pb.

i took away 1 GB memory card then no more pb

Status: NEW => RESOLVED
Resolution: (none) => INVALID