I've tested above patch on queens qemu. and it works fine. I don't have to fix Mitaka anymore.
if this patch is viable, we need to put this to every release since Queens. if not, migration from patched one to unpatched one will not work as I saw between Mitaka and Queens. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1894772 Title: live migration of windows 2012 r2 instance with virtio balloon driver fails from mitaka to queens. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1894772/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs