VMware ESX unrecoverable error: (vcpu-0) Unexpected signal: 11
vix error code = 13002
Virtual Machine is powered off.
vSphere HA unsuccessfully failed over this virtual machine. vSphere HA will retry if the maximum number of attempts has not been exceeded. Reason: An error occurred during host configuration.
What ESX version are you using?
ESXi 5.0 Build 702118.
Do you have a Snapshot there?
was there a host failure or a host which got isolated from the network ?
HA decided to power on this machine but seems like was not able to do so on other host - try powering on this VM manually on the other host and see if there is an issue
HTH