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[Matt Riedemann <mriedem@xxxxxxxxxx>]

** Also affects: nova/mitaka
   Importance: Undecided
       Status: New

** Changed in: nova/mitaka
     Assignee: (unassigned) => Stephen Finucane (stephenfinucane)

** Changed in: nova/mitaka
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1587386

Title:
  Unshelve results in duplicated resource deallocated

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) mitaka series:
  In Progress

Bug description:
  Description
  ===========

  Shelve/unshelve operations fail when using "NFV flavors". This was
  reported on the mailing list initially.

  http://lists.openstack.org/pipermail/openstack-
  dev/2016-May/095631.html

  Steps to reproduce
  ==================

  1. Create a flavor with 'hw:numa_nodes=2', 'hw:cpu_policy=dedicated' and 'hw:mempage_size=large'
  2. Configure Tempest to use this new flavor
  3. Run Tempest tests

  Expected result
  ===============

  All tests will pass.

  Actual result
  =============

  The shelve/unshelve Tempest tests always result in a timeout exception 
  being raised, looking similar to the following, from [1]:

      Traceback (most recent call last):
        File "tempest/api/compute/base.py", line 166, in server_check_teardown
      cls.server_id, 'ACTIVE')
        File "tempest/common/waiters.py", line 95, in wait_for_server_status
          raise exceptions.TimeoutException(message)2016-05-22 22:25:30.697 13974 ERROR tempest.api.compute.base TimeoutException: Request timed out
      Details: (ServerActionsTestJSON:tearDown) Server cae6fd47-0968-4922-a03e-3f2872e4eb52 failed to reach ACTIVE status and task state "None" within the required time (196 s). Current status: SHELVED_OFFLOADED. Current task state: None.

  The following errors are raised in the compute logs:

      Traceback (most recent call last):
        File "/opt/stack/new/nova/nova/compute/manager.py", line 4230, in _unshelve_instance
          with rt.instance_claim(context, instance, limits):
        File "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 271, in inner
          return f(*args, **kwargs)
        File "/opt/stack/new/nova/nova/compute/resource_tracker.py", line 151, in instance_claim
      self._update_usage_from_instance(context, instance_ref)
        File "/opt/stack/new/nova/nova/compute/resource_tracker.py", line 827, in _update_usage_from_instance
          self._update_usage(instance, sign=sign)
        File "/opt/stack/new/nova/nova/compute/resource_tracker.py", line 666, in _update_usage
          self.compute_node, usage, free)
        File "/opt/stack/new/nova/nova/virt/hardware.py", line 1482, in get_host_numa_usage_from_instance
          host_numa_topology, instance_numa_topology, free=free))
        File "/opt/stack/new/nova/nova/virt/hardware.py", line 1348, in numa_usage_from_instances
          newcell.unpin_cpus(pinned_cpus)
        File "/opt/stack/new/nova/nova/objects/numa.py", line 94, in unpin_cpus
          pinned=list(self.pinned_cpus))
      CPUPinningInvalid: Cannot pin/unpin cpus [6] from the following pinned set [0, 2, 4]

  [1] http://intel-openstack-ci-logs.ovh/86/319686/1/check/tempest-dsvm-
  full-nfv/b463722/testr_results.html.gz

  Environment
  ===========

  1. Exact version of OpenStack you are running. See the following

  Commit '25fdf64'.

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