[CentOS] Can not modprobe acpi-cpufreq.ko in CentOS 5.2

Dear all,


The cpufreq modules have been distributed in Centos. But recently,
I met a problem when I tried to test the power-related applications.
The module can not be modprobed in kernel notwithstanding releated
with Centos distribution.

The messgae thrown out is:

-------------  dump of screen ------------

# modprobe p4-clockmod.ko
FATAL: Module p4_clockmod.ko not found

--------------------------------------------------

However, the module is there. If I search the kernel path:

------------------  dump of screen ----------------------

# ls /lib/modules/`uname -r`/kernel/arch/*/kernel/cpu/cpufreq
acpi-cpufreq.ko

# find /lib/modules/  -name "*cpufreq*"
/lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq
/lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_powersave.ko
/lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_ondemand.ko
/lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_conservative.ko
/lib/modules/2.6.18-92.el5/kernel/drivers/cpufreq/cpufreq_stats.ko
/lib/modules/2.6.18-92.el5/kernel/arch/x86_64/kernel/cpufreq
/lib/modules/2.6.18-92.el5/kernel/arch/x86_64/kernel/cpufreq/acpi-cpufreq.ko
/lib/modules/2.6.29.3/kernel/drivers/cpufreq
/lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_powersave.ko
/lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_ondemand.ko
/lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_conservative.ko
/lib/modules/2.6.29.3/kernel/drivers/cpufreq/cpufreq_stats.ko
/lib/modules/2.6.29.3/kernel/arch/x86/kernel/cpu/cpufreq
/lib/modules/2.6.29.3/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko

# cat /etc/issue
CentOS release 5.2 (Final)
Kernel \r on an \m

# uname -a
Linux hdt0.mycompany.com 2.6.29.3 #1 SMP Thu May 28 13:34:23 CST 2009
x86_64 x86_64 x86_64 GNU/Linux

------------------------------------------------------------------

I have googled the internet for a long time, but not got any solution.

Could anybody given me some help?


Thanks,

Ian