Comment 0 for bug 1652937

After stop and start compute node vms connectivity stopped for vms on this computer with errors in ovs logs

Steps to reproduce:
1) DPDK vxlan env
2) Create 1 vm on the first compute (flavor with hp)
3) Create 1 vm on another compute (flavor with hp)
4) Stop 1st compute
5) Wait some time
6) Start compute
7) Try ping vm on this compute
Expected results: ping is available
Actual result: ping is unavailable
8) Boot new vm on the same compute
9) Try ping new vm on this compute
Expected results: ping is available
Actual result: ping is unavailable

In ovs log on compute we have error:
ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [-] Tunneling can't be enabled with invalid local_ip '10.109.4.5'. IP couldn't be found on this host's interfaces

Huge pages after deleting all vms shows that no hp are allocated for DPDK
node-4.test.domain.local: (health node)
    1048576: {'free': 0, 'total': 0},
    2048: {'free': 18000, 'total': 19024}
node-3.test.domain.local: (stop and start node)
    1048576: {'free': 0, 'total': 0},
    2048: {'free': 19024, 'total': 19024}

Description of the environment:
SNAPSHOT_ID='#688
3 controllers, 2 computes+ceph (18000 2M HP, 1024 for DPDK)