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ovs-vsctl add-br hangs in Ubuntu OpenStack version 2013.2.2 neutron OVS agent plugin package

asked 2014-03-12 21:57:05 -0500

nhomma gravatar image

updated 2014-03-13 01:52:56 -0500

Hi, I'm trying to install OpenStack Ubuntu on Ubuntu 12.04.4 LTS. I have already tried it few weeks ago and it installed without much problem.

But now, when I tried it yesterday one of the instructions on setting up neutron with OVS is not working.

The part which is not working is where I need to create a bridge in OVS, mentioned in below manual: (

ovs-vsctl add-br br-int

ovs-vsctl add-br br-ex

Both these commands hang, and when I quit with ctrl+c I get something like: 2014-03-13T02:37:49Z|00002|fatal_signal|WARN|terminating with signal 2 (Interrupt)

I saw similar things in below blog post but workaround described here does not seem to fix the issue. (

Then I tried to isolate the issue and set up another server, and installed openvswitch-switch and openvswitch-datapath-dkms with apt, then tried the above command and it works without a problem.

So I suspect that somewhere between the updates from ubuntu openstack neutron package 2013.2.1 and 2013.2.2 some problem creeped in.

Anyone have any thoughts on how to approach this? or is there any way to specify older versions of Ubuntu cloud-archive? I want to go back to version 2013.2.1.

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answered 2014-03-13 05:32:30 -0500

RHK gravatar image

Check the openvswitch-switch service running or not. If it is not running check the log entries in the neutron log


Also check the openvswitch kernel module is loded properly or not, and verify this package is properly installed apt-get install openvswitch-datapath-dkms

I hope this may help you for doing some trouble shooting.

Regards, RHK

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Asked: 2014-03-12 21:57:05 -0500

Seen: 1,474 times

Last updated: Mar 13 '14