The patch does not solve the problem for me. nova has to check the qemu version in addition to the kernel version and set its limit accordingly
In the version I am using of qemu (Ubuntu Liberty UCA) I have: VIRTIO_PCI_QUEUE_MAX == 64 This leads to 31 max queues: (VIRTIO_PCI_QUEUE_MAX - 1) / 2 It is not just the Kernel version Please read also bug #1644839 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1570631 Title: With hw:vif_multiqueue_enabled, libvirt driver fails with VM larger than 8 vCPU To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1570631/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
