Created attachment 754869 [details] vm's dumpxml Description of problem: Upgrade fedora from 18 to 19. After upgrade none of the VMs attached ovs brige are starting Version-Release number of selected component (if applicable): # cat /etc/redhat-release Fedora release 19 (Schrödinger’s Cat) # rpm -q libvirt libvirt-1.0.5.1-1.fc19.x86_ How reproducible: Always Steps to Reproduce: 1. # cat ovs.xml <interface type='bridge'> <source bridge='ovsbr0'/> <virtualport type='openvswitch' /> <model type='virtio'/> </interface> 2. # virsh attach-device rhevh6 --config ovs.xml Device attached successfully 3. start the vm using virt-manager or virsh Actual results: Error starting domain: Cannot get interface MTU on 'ovsbr0': No such device Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 101, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/asyncjob.py", line 123, in tmpcb callback(*args, **kwargs) File "/usr/share/virt-manager/virtManager/domain.py", line 1174, in startup self._backend.create() File "/usr/lib64/python2.7/site-packages/libvirt.py", line 692, in create if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self) libvirtError: Cannot get interface MTU on 'ovsbr0': No such device Expected results: vm will start with virtual interface attached to ovsbridge. It was working fine on f18. Additional info:
The error message says that the "ovsbr0" device doesn't exist. Libvirt doesn't/can't create openvswitch bridges, it only uses bridges that already exist. What is the output of: ovs-vsctl list-br ?? If it's empty, then you need to create the bridge with ovs-vsctl add-br ovsbr0 If you get error messages, you haven't started the openvswitch service; run systemctl start openvsiwtch.service then do list-br to make sure your bridge is there (and create it if not).
# ovs-vsctl show e0cbfad8-5d4b-435e-a7c9-4ec8cf9cfd40 Bridge "br0" Port "vlan20" tag: 20 Interface "vlan20" type: internal Port "br0" Interface "br0" type: internal Port "vlan10" tag: 10 Interface "vlan10" type: internal Bridge "ovsbr0" Port "ovsbr0" Interface "ovsbr0" type: internal Port "vnet28" Interface "vnet28" Port "vnet27" Interface "vnet27" Port "em1" Interface "em1" Port "vnet6" Interface "vnet6" Port "vnet5" Interface "vnet5" Port "vnet7" Interface "vnet7" Port "vnet4" Interface "vnet4" ovs_version: "1.10.0" ======= But, # systemctl status openvsiwtch.service openvsiwtch.service Loaded: error (Reason: No such file or directory) Active: inactive (dead) ===== So I stopped the service .. and restarted it again. Now its working as expected. Closing the bug.
I'm removing the fedora_requires_release_note tag here; please advise if you think I shouldn't have. Thanks for the added signal, anyway!