I installed ROS 6.35.2 on Esxi. Recently, ROS keeps on rebooting after a short while when it is powered on.

No logs found on ROS Log except " router was rebooted without proper shutdown ".
Logs can be found on Esxi, it says, "The cpu has been disabled by the guest operating system. power off or reset the virtual machine".

I copied the VPS(ROS, transfered by OVF) to another Esxi physical machine, it runs OK.

However, when I turned off Hotsopt, it runs well too!

Physcial machine properties:
CPU: Intel Xeon E5-2670*2
Memory: 32G
Disk: 4T*5 on raid 5
Esxi Version: 6.0.0

VPS(ROS) properties:
CPU: 4*4 CPU
Memory: 1G
CPU/MMU Virtualizaton: Automatic
CPUID Mask: Expose NX flag to guest.

Anyone has any idea?

Thanks.