Debugging Guest Linux OS in VMWare

I am using VMWare Workstation version 7.1.0 and Ubuntu 12.04 LTS (64 bit) Virtual Machine as the guest operating system, Windows 7 64-bit as the host operating system.

I am trying to debug the linux kernel of the guest operating system.

I have modified the *.vmx configuration file of my guest operating system, Ubuntu and added the following 3 lines to enable the GDB stub:

debugStub.listen.guest64="TRUE"

debugStub.hideBreakpoints="TRUE"

monitor.debugOnStartGuest64="TRUE"

Now, when I power on the virtual machine in VMWare Workstation, I expect it to pause and not boot into the Linux OS. Since it is waiting to be debugged. But in my case, it continues to boot into the Ubuntu Operating System.

Thanks.