I have a bunch of Virtual Machines in a Ubuntu 18 Guest machine. Until recently they have all been working without any problem. However after I restartet one of the Guests(also Ubuntu) it is now not starting back up.
The libvirt log does have nothing out of the ordinary, If I mount the guest image the last log entry is from the shutdown.
After starting the guest there is 0 CPU usage for this machine and very little and constant memory usage. virsh shutdown Guest
has no effect.
There where no changes or updates before this happend.
The images are in a zfs pool and have hourly snapshots, however those are also not booting anymore.
I really don't know how to debug this anymore, there is not a single error message.
I am thankful for any help.
Compiled against library: libvirt 4.0.0
Using library: libvirt 4.0.0
Using API: QEMU 4.0.0
Running hypervisor: QEMU 2.11.1