Comment 5 for bug 1784579

We don't actually do any port binding on the destination host (in queens) during pre_live_migration, so I'm wondering if the instance info_cache already had the bad "binding_failed" vif type in it before you started the live migration, because we don't actually change the ports host_id to the dest host until we get to _post_live_migration, so I'm guessing this instance was already messed up before you attempted to live migrate it. Do you have any other errors in the logs for this instance and/or port *before* the live migration attempt?