Ran into this bug too on 3.13.0-48. My workaround is to run QEMU on top of KVM (instead of kvm on top of KVM)
devstack local.conf: [[post-config|$NOVA_CONF]] [libvirt] virt_type = qemu nova.conf [libvirt] virt_type = qemu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1413540 Title: Trusty soft lockup issues with nested KVM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1413540/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs