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"Newton" - Filter RetryFilter returned 0 hosts

Running PackStack all-in-one. Can't instantiate a Cirros VM. Set debug=true in /etc/nova/novs.conf, restarted nova services, retried to instantiate and see all the filters it passes (returns 1 host) but then at the end "RetryFilter returned 0 hosts". It mentions NUMA topology but I have already removed / reinserted KVM kernel modules and even rebooted. Any ideas? Logfile follows..

2017-07-25 20:47:38.236 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Starting with 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:70
2017-07-25 20:47:38.236 1585 DEBUG nova.scheduler.filters.retry_filter [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Re-scheduling is disabled host_passes /usr/lib/python2.7/site-packages/nova/scheduler/filters/retry_filter.py:34
2017-07-25 20:47:38.236 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter RetryFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.237 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter AvailabilityZoneFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.237 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter RamFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.237 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter DiskFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.238 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter ComputeFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.238 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter ComputeCapabilitiesFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.238 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter ImagePropertiesFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.239 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter ServerGroupAntiAffinityFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.239 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter ServerGroupAffinityFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.239 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter CoreFilter returned 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:104
2017-07-25 20:47:38.240 1585 DEBUG nova.scheduler.filter_scheduler [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filtered [(kvm8.ims1.mia.ccncore.net, kvm8.ims1.mia.ccncore.net) ram: 97779MB disk: 514048MB io_ops: 0 instances: 0] _schedule /usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py:115
2017-07-25 20:47:38.240 1585 DEBUG nova.scheduler.filter_scheduler [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Weighed [WeighedHost [host: (kvm8.ims1.mia.ccncore.net, kvm8.ims1.mia.ccncore.net) ram: 97779MB disk: 514048MB io_ops: 0 instances: 0, weight: 0.0]] _schedule /usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py:120
2017-07-25 20:47:38.240 1585 DEBUG nova.scheduler.filter_scheduler [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Selected host: WeighedHost [host: (kvm8.ims1.mia.ccncore.net, kvm8.ims1.mia.ccncore.net) ram: 97779MB disk: 514048MB io_ops: 0 instances: 0, weight: 0.0] _schedule /usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py:127
2017-07-25 20:47:43.089 1585 DEBUG nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Starting with 1 host(s) get_filtered_objects /usr/lib/python2.7/site-packages/nova/filters.py:70
2017-07-25 20:47:43.089 1585 INFO nova.scheduler.filters.retry_filter [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Host [u'kvm8.ims1.mia.ccncore.net', u'kvm8.ims1.mia.ccncore.net'] fails.  Previously tried hosts: [[u'kvm8.ims1.mia.ccncore.net', u'kvm8.ims1.mia.ccncore.net']]
2017-07-25 20:47:43.089 1585 INFO nova.filters [req-6f7041ba-e36d-4cdb-8e63-d2a8ce878ea7 ff0b41615dd749e39267a5f6ead17b19 32bbb96442094b91813ec556dfd4ff30 - - -] Filter RetryFilter returned 0 hosts