I had the same problem, i do the update the kernel to 3.2.0-38-generic and now this working again
Ubuntu 12.04 LTS 64Bits
Feb 28 08:23:16 os0 dnsmasq-dhcp[2092]: DHCPREQUEST(br100) 172.16.88.229 fa:16:3e:44:90:46 Feb 28 08:23:16 os0 dnsmasq-dhcp[2092]: DHCPACK(br100) 172.16.88.229 fa:16:3e:44:90:46 00000021
nova-api=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-cert=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-common=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-compute=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-compute-kvm=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-consoleauth=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-network=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-novncproxy=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 nova-scheduler=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 python-nova=2012.2.1+stable-20121212-a99a802e-0ubuntu1.1~cloud0 python-novaclient=1:2.9.0-0ubuntu1~cloud0
I had the same problem, i do the update the kernel to 3.2.0-38-generic and now this working again
Ubuntu 12.04 LTS 64Bits
Feb 28 08:23:16 os0 dnsmasq-dhcp[2092]: DHCPREQUEST(br100) 172.16.88.229 fa:16:3e:44:90:46
Feb 28 08:23:16 os0 dnsmasq-dhcp[2092]: DHCPACK(br100) 172.16.88.229 fa:16:3e:44:90:46 00000021
nova-api= 2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 kvm=2012. 2.1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 h=2012. 2.1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 =2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 2012.2. 1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 nova=2012. 2.1+stable- 20121212- a99a802e- 0ubuntu1. 1~cloud0 novaclient= 1:2.9.0- 0ubuntu1~ cloud0
nova-cert=
nova-common=
nova-compute=
nova-compute-
nova-consoleaut
nova-network=
nova-novncproxy
nova-scheduler=
python-
python-