Comment 5 for bug 1404743

exactly, the reason of failure is VM is not getting an IP from DHCP - a bit more relevant part of cirros log below:

http://logs.openstack.org/99/144399/6/check/check-tempest-dsvm-neutron-full/05caba4/console.html

2015-01-05 04:27:08.148 | info: initramfs: up at 3.24
2015-01-05 04:27:08.148 | info: copying initramfs to /dev/vda
2015-01-05 04:27:08.148 | info: initramfs loading root from /dev/vda
2015-01-05 04:27:08.148 | info: /etc/init.d/rc.sysinit: up at 6.86
2015-01-05 04:27:08.148 | info: container: none
2015-01-05 04:27:08.148 | Starting logging: OK
2015-01-05 04:27:08.148 | Initializing random number generator... done.
2015-01-05 04:27:08.148 | Starting acpid: OK
2015-01-05 04:27:08.148 | cirros-ds 'local' up at 8.81
2015-01-05 04:27:08.148 | found datasource (configdrive, local)
2015-01-05 04:27:08.148 | Starting network...
2015-01-05 04:27:08.149 | udhcpc (v1.20.1) started
2015-01-05 04:27:08.149 | Sending discover...
2015-01-05 04:27:08.149 | Sending discover...
2015-01-05 04:27:08.149 | Sending discover...
---> 2015-01-05 04:27:08.149 | No lease, failing
2015-01-05 04:27:08.149 | WARN: /etc/rc3.d/S40-network failed
2015-01-05 04:27:08.149 | Starting dropbear sshd: generating rsa key... generating dsa key... OK
2015-01-05 04:27:08.149 | no userdata for datasource
...
2015-01-05 04:27:08.151 | === network info ===
2015-01-05 04:27:08.151 | if-info: lo,up,127.0.0.1,8,::1
2015-01-05 04:27:08.151 | if-info: eth0,up,,8,fe80::f816:3eff:fe5a:b2a