such as the topic, the original virtual machine system is 7 3.10.0 centos - 957 el7. X86_64, because the project need to recompile and install a new kernel, but the default option, when new kernel was prompt the client operating system CPU "disabled",
Another virtual machine is centos7 3.10.0-229. El7. X86_64, compiled in this virtual machine, install the same kernel, but can choose new kernel startup success,
I wish to consult everybody, thank you,