Comment 13 for bug 1848497

I'm seeing what I think is this issue for the stein cloud archive packages.

Source host (openstack rocky release):
qemu-system-x86:
  Installed: 1:2.11+dfsg-1ubuntu7.26

Destination host (openstack stein release):
qemu-system-x86:
  Installed: 1:3.1+dfsg-2ubuntu3.7~cloud0

Live Migration failure: internal error: qemu unexpectedly closed the monitor: 2020-05-24T22:47:19.677896Z qemu-system-x86_64: get_pci_config_device: Bad config data: i=0x10 read: a1 device: 1 cmask: ff wmask: c0 w1cmask:0
2020-05-24T22:47:19.677922Z qemu-system-x86_64: Failed to load PCIDevice:config
2020-05-24T22:47:19.677926Z qemu-system-x86_64: Failed to load virtio-balloon:virtio
2020-05-24T22:47:19.677929Z qemu-system-x86_64: error while loading state for instance 0x0 of device '0000:00:05.0/virtio-balloon'
2020-05-24T22:47:19.678086Z qemu-system-x86_64: load of migration failed: Invalid argument: libvirt.libvirtError: internal error: qemu unexpectedly closed the monitor: 2020-05-24T22:47:19.677896Z qemu-system-x86_64: get_pci_config_device: Bad config data: i=0x10 read: a1 device: 1 cmask: ff wmask: c0 w1cmask:0

Bit stuck on this so any pointers in the right direction would be great