suse服务器重启问题，求大神解决

有两台suse服务器（虚拟机），最近频繁重启，看message 发现如下CPU的问题，请教下这是啥问题啊
Error message in /var/log/messages
> Feb 6 22:55:07 <hostname> syslog-ng[1524]: syslog-ng starting up;
> version='2.0.9'
> Feb 6 22:55:09 <hostname> rchal: CPU frequency scaling is not
> supported by your processor.
> Feb 6 22:55:09 <hostname> rchal: boot with 'CPUFREQ=no' in to avoid
> this warning.
> Feb 6 22:55:09 <hostname> rchal: Cannot load cpufreq governors - No
> cpufreq driver available