Hi,I have read your reply from the question,about the vmware-driver:vmw_balloon,I have one question to ask.
The balloon driver initially name is vmware_balloon,now its upgraded,the name is vmw_balloon.The question is:
I have a rhel7 guest on esxi5.1,after I install rhel7,the balloon driver(vmw_balloon) have been merged into the kernel,But I cannot find the process vmmemctl ,but the rhel6 guest on esxi5.1 can find the process when modprobe the driver vmware_balloon.