There is patch to workaround for this bug, that also fixes similar error after live migration of vm with cpu mode "host-passthrough".
** Patch added: "dont-fail-without-cpu-model.patch" https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1262641/+attachment/3958596/+files/dont-fail-without-cpu-model.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1262641 Title: virsh save and virsh managedsave failed with cpu mode = host- passthrough To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1262641/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs