On a trusty install, I can't see anything in openstack loading the module; maybe the first call to use veth is doing something magic:
Sep 3 09:07:37 juju-jamespage-machine-11 sudo: neutron : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf ip link add tap00742668-03 type veth peer name qg-00742668-03 netns qrouter-348230c6-0f09-43b2-9aed-641a95d4ed87 ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1364828 Title: neutron unable? to create veth devices on utopic Status in “linux” package in Ubuntu: New Status in “neutron” package in Ubuntu: New Bug description: Deploying OpenStack Juno on Utopic results in a non-functional cloud (at least with neutron). On gateway and compute nodes, neutron can't create veth devices AFAICT resulting in missing interfaces etc.. and generally broken instance connectivity. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: neutron-common 1:2014.2~b2-0ubuntu1 ProcVersionSignature: User Name 3.16.0-11.16-generic 3.16.1 Uname: Linux 3.16.0-11-generic x86_64 ApportVersion: 2.14.7-0ubuntu1 Architecture: amd64 Date: Wed Sep 3 08:39:35 2014 Ec2AMI: ami-0000005d Ec2AMIManifest: FIXME Ec2AvailabilityZone: nova Ec2InstanceType: m1.medium Ec2Kernel: aki-00000002 Ec2Ramdisk: ari-00000002 PackageArchitecture: all SourcePackage: neutron UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.neutron.api.paste.ini: [deleted] modified.conffile..etc.neutron.fwaas.driver.ini: [deleted] modified.conffile..etc.neutron.l3.agent.ini: [deleted] modified.conffile..etc.neutron.neutron.conf: [deleted] modified.conffile..etc.neutron.policy.json: [deleted] modified.conffile..etc.neutron.rootwrap.conf: [deleted] modified.conffile..etc.neutron.rootwrap.d.debug.filters: [deleted] modified.conffile..etc.neutron.rootwrap.d.iptables.firewall.filters: [deleted] modified.conffile..etc.neutron.rootwrap.d.l3.filters: [deleted] modified.conffile..etc.neutron.rootwrap.d.vpnaas.filters: [deleted] modified.conffile..etc.neutron.vpn.agent.ini: [deleted] modified.conffile..etc.sudoers.d.neutron.sudoers: [deleted] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1364828/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp