VMware module "vmmon" fails to load with an error: "Unknown symbol in module, or unknown parameter"

Issue

• After upgrading RHEL-6 to RHEL-6.6 minor release, the vmplayer fails to load a virtual machine with following message during startup:

error: "couldn't open /dev/vmmon " 

• The following error messages logged in dmesg:

kernel: vmmon: disagrees about version of symbol poll_initwait
kernel: vmmon: Unknown symbol poll_initwait
kernel: vmmon: disagrees about version of symbol poll_freewait
kernel: vmmon: Unknown symbol poll_freewait

• modprobe command also fails with following error message.

# modprobe vmmon
FATAL: Error inserting vmmon (/lib/modules/2.6.32-504.el6.x86_64/misc/vmmon.ko): 
Unknown symbol in module, or unknown parameter (see dmesg)

# dmesg |tail -n 2
vmmon: disagrees about version of symbol poll_freewait
vmmon: Unknown symbol poll_freewait