Comment 4 for bug 1946752

The log doesn't show a stack backtrace anyway:

7023a7024,7029
> 2022-05-10 12:06:33.966 44202 INFO nova.compute.manager [-] [instance: d1fbcb4f-a743-4d4d-98bc-3635c320958b] Took 2.16 seconds for pre_live_migration on destination host zbk130711.zbk.sys11cloud.net.
> 2022-05-10 12:06:34.026 44202 INFO nova.virt.osinfo [-] Cannot load Libosinfo: (cannot import name Libosinfo, introspection typelib not found)
> 2022-05-10 12:06:34.088 44202 ERROR nova.virt.libvirt.driver [-] [instance: d1fbcb4f-a743-4d4d-98bc-3635c320958b] Live Migration failure: argument unsupported: post-copy migration is not supported with non-live or paused migration: libvirt.libvirtError: argument unsupported: post-copy migration is not supported with non-live or paused migration
> 2022-05-10 12:06:34.499 44202 ERROR nova.virt.libvirt.driver [-] [instance: d1fbcb4f-a743-4d4d-98bc-3635c320958b] Migration operation has aborted
> 2022-05-10 12:06:34.553 44202 INFO nova.compute.manager [-] [instance: d1fbcb4f-a743-4d4d-98bc-3635c320958b] Swapping old allocation on dict_keys(['2dced892-072f-4011-b124-0c9361e355d5']) held by migration c20c6e44-280b-4ba6-8d71-cd5f60279623 for instance
> 2022-05-10 12:06:36.301 44202 WARNING nova.compute.manager [req-4f23375d-6a38-4a50-af44-705a98a2b802 1869b07324e64160b2b8069914473fb1 6648715e73fa4fa68967b1ac8787cca1 - default default] [instance: d1fbcb4f-a743-4d4d-98bc-3635c320958b] Received unexpected event network-vif-plugged-4e391962-7cf4-4399-85cd-ea5880d8965a for instance with vm_state paused and task_state migrating.