I wonder what the VM is locked for? It might tell in the /etc/pve/qemu-server/${VMID}.conf
file. Shutdown already running, or maybe backup?
qm stop
is the equivalent of pulling the plug, but if a qm shutdown
is already running, it will give a timeout and you have to cancel the shutdown first.
qm list
will show you the PID of the kvm
-process that runs for your VM. You might try a kill
if all else fails, which is like unplugging the virtual CPU.