I think I have encountered exactly the same issue as you Nico. We have very similar setups. Upgrading the kernel did not help. Only thing that helped was setting openstack to use qemu instead of kvm in L2 VMs with the performance cost associated with doing that :(
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797332 Title: qemu nested virtualization is not working with Ubuntu16.04 + Intel CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1797332/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
