VirtualBox can't operate in VMX root mode. Please disable the KVM kernel ext

"VirtualBox can't operate in VMX root mode. Please disable the KVM kernel ext“ 
结果搜到这样的解决方案： 
这是virtualbox与kvm冲突导致的问题，只要在终端执行下面的命令，便可解决： 
sudo rmmod kvm-intel