New DPDK instances cannot be created in an environment with OVS-DPDK in Red Hat OpenStack Platform

Issue

New DPDK instances cannot be created in an environment with OVS-DPDK in Red Hat OpenStack Platform

[stack@undercloud ~]$ openstack flavor list
+--------------------------------------+---------------+------+------+-----------+-------+-----------+
| ID                                   | Name          |  RAM | Disk | Ephemeral | VCPUs | Is Public |
+--------------------------------------+---------------+------+------+-----------+-------+-----------+
(...)
| dac32d86-958d-4262-a7ae-60e6598b6511 | m1.small.dpdk | 4096 |   20 |         0 |     1 | True      |
+--------------------------------------+---------------+------+------+-----------+-------+-----------+

IThe deployment is failing on the NUMA filter. One can observe the following in /var/log/nova/nova-scheduler.log when nova is switched to debug=true:

(...)
b3b93] overcloud-compute-dpdk-1.localdomain, overcloud-compute-dpdk-1.localdomain fails NUMA topology requirements. The instance does not fit on this host. host_passes /usr/lib/python2.7/site-packages/nova/scheduler/filters/numa_topology_
filter.py:93
(...)