Comment 2 for bug 2011535

I think this is related to the fact that I'm using qemu instead of kvm.

https://2e4f6457af6d4bb29c73-cc818d493c2a52ef4d37701157d67702.ssl.cf2.rackcdn.com/877214/2/check/puppet-openstack-integration-7-scenario002-tempest-ubuntu-jammy/d6f2fb2/logs/etc/nova/nova.conf.txt
~~~
[libvirt]
virt_type=qemu
~~~

The node has nova-compute-qemu installed instead of nova-compute-kvm.

https://2e4f6457af6d4bb29c73-cc818d493c2a52ef4d37701157d67702.ssl.cf2.rackcdn.com/877214/2/check/puppet-openstack-integration-7-scenario002-tempest-ubuntu-jammy/d6f2fb2/logs/dpkg-l.txt
~~~
ii libvirt-clients 8.0.0-1ubuntu7.4 amd64 Programs for the libvirt library
ii libvirt-daemon 8.0.0-1ubuntu7.4 amd64 Virtualization daemon
ii libvirt-daemon-config-network 8.0.0-1ubuntu7.4 all Libvirt daemon configuration files (default network)
ii libvirt-daemon-config-nwfilter 8.0.0-1ubuntu7.4 all Libvirt daemon configuration files (default network filters)
ii libvirt-daemon-driver-qemu 8.0.0-1ubuntu7.4 amd64 Virtualization daemon QEMU connection driver
ii libvirt-daemon-system 8.0.0-1ubuntu7.4 amd64 Libvirt daemon configuration files
ii libvirt-daemon-system-systemd 8.0.0-1ubuntu7.4 all Libvirt daemon configuration files (systemd)
ii libvirt0:amd64 8.0.0-1ubuntu7.4 amd64 library for interfacing with different virtualization systems
...
ii nova-common 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - common files
ii nova-compute 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - compute node base
ii nova-compute-libvirt 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - compute node libvirt support
ii nova-compute-qemu 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - compute node (QEmu)
ii nova-conductor 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - conductor service
ii nova-novncproxy 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - NoVNC proxy
ii nova-scheduler 3:26.1.0-0ubuntu1~cloud0 all OpenStack Compute - virtual machine scheduler
~~~

I suspect the change in libvirt (unintentionally or intentionally) changed the group used to run qemu process even if kvm is not used.