Red Hat Enterprise Linux 5 vmware virtual machine locks up when vCPU configuration is set to emulate more number of sockets than the number of sockets present on host

Solution Verified - Updated -


  • RHEL5 Vmware guest machine locks up and drops off the network. Can access the console, but cannot Log-In.
  • The mouse & keyboard are unresponsive as well. VM seems to be completely frozen.
  • This is reproducible on multiple VM's when attempting to install oracle 12c agent.


  • Red Hat Enterprise Linux 5.9
  • VMware vSphere ESXi 5.1

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