dmesg Warnning

dmesg 里有N多

p4-clockmod: Warning: EST-capable CPU detected. The acpi-cpufreq module offers voltage scaling in addition of frequency scaling. You should use that instead of p4-clockmod, if possible.

大概扫了一下google，说是CPU太新的问题.

看到一篇老外写的解决方法比较不错，http://forums.fedoraforum.org/showthread.php?t=255494

[root@localhost ~]# locate p4-clockmod
/lib/modules/2.6.32-220.el6.x86_64/kernel/arch/x86/kernel/cpu/cpufreq/p4-clockmod.ko

[root@localhost ~]# locate acpi-cpufreq
/lib/modules/2.6.32-220.el6.x86_64/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko

modprobe -r p4-clockmod  # unload p4-clockmod module
modprobe acpi-cpufreq    # load acpi-cpufreq module

摘录一下

No, that won't stick across reboots. For that, you could either put both of those commands in the /etc/rc.d/rc.local file, or, better yet:

1) blacklist the p4-clockmod module by creating the file: /etc/modprobe.d/blacklist-p4-clockmod.conf
and put into that file just one line: blacklist p4-clockmod

2) put just the "modprobe acpi-cupfreq" line into the /etc/rc.d/rc.local file.

The two step method is better in that the p4-clockmod module won't load in the first place, so then no need to unload it.

你可以把这两条命令都添加到/etc/rc.d/rc.local

echo "modprobe -r p4-clockmod" >>/etc/rc.d/rc.local

echo "modprobe acpi-cpufreq" >>/etc/rc.d/rc.local