I've suddenly started having problems whenever I try to launch a VM. My server was rock solid for well over a year until now.   When I launch a VM, shortly after the guest OS boots, the web UI shows 6 or 7 CPU threads (random ones, not necessarily the ones pinned to the VM) spiking and staying at redline. Seconds later, the web UI becomes unresponsive, the entire system locks up, and you've got no choice but to power-cycle.   I've attached my diagnostic file and a couple of p