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[melanie witt <2098892@xxxxxxxxxxxxxxxxxx>]

** Also affects: nova/2024.2
   Importance: Undecided
       Status: New

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

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

** Also affects: nova/2024.1
   Importance: Undecided
       Status: New

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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/2098892

Title:
  "TypeError: virNodeDeviceLookupByName() argument 2 must be str or
  None, not Proxy" from update_available_resource with mdevs

Status in OpenStack Compute (nova):
  In Progress
Status in OpenStack Compute (nova) 2024.1 series:
  New
Status in OpenStack Compute (nova) 2024.2 series:
  New
Status in OpenStack Compute (nova) antelope series:
  New
Status in OpenStack Compute (nova) bobcat series:
  New

Bug description:
  The patch meant to fix https://bugs.launchpad.net/nova/+bug/2091033
  unfortunately has broken the nova-compute update_available_resource
  periodic task when mdevs are involved with a traceback like shown
  below.

  We are working on a partial revert that will be backported to the same
  branches where the original patch was merged.

  
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager Traceback (most recent call last):
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/compute/manager.py", line 10530, in _update_available_resource_for_node
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager self.rt.update_available_resource(context, nodename,
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/compute/resource_tracker.py", line 889, in update_available_resource
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager self._update_available_resource(context, resources, startup=startup)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/oslo_concurrency/lockutils.py", line 414, in inner
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager return f(*args, **kwargs)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/compute/resource_tracker.py", line 994, in _update_available_resource
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager self._update(context, cn, startup=startup)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/compute/resource_tracker.py", line 1303, in _update
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager self._update_to_placement(context, compute_node, startup)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/retrying.py", line 49, in wrapped_f
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager return Retrying(*dargs, **dkw).call(f, *args, **kw)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/retrying.py", line 206, in call
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager return attempt.get(self._wrap_exception)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/retrying.py", line 247, in get
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager six.reraise(self.value[0], self.value[1], self.value[2])
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/six.py", line 709, in reraise
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager raise value
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/retrying.py", line 200, in call
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/compute/resource_tracker.py", line 1216, in _update_to_placement
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager self.driver.update_provider_tree(prov_tree, nodename)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/driver.py", line 9120, in update_provider_tree
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager self._update_provider_tree_for_vgpu(
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/driver.py", line 9529, in _update_provider_tree_for_vgpu
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager inventories_dict = self._get_gpu_inventories()
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/driver.py", line 8199, in _get_gpu_inventories
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager count_per_dev = self._count_mdev_capable_devices(enabled_mdev_types)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/driver.py", line 8150, in _count_mdev_capable_devices
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager mdev_capable_devices = self._get_mdev_capable_devices(
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/driver.py", line 8392, in _get_mdev_capable_devices
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager device = self._get_mdev_capabilities_for_dev(name, types)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/driver.py", line 8361, in _get_mdev_capabilities_for_dev
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager virtdev = self._host.device_lookup_by_name(devname)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/nova/virt/libvirt/host.py", line 1253, in device_lookup_by_name
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager return self.get_connection().nodeDeviceLookupByName(name)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/eventlet/tpool.py", line 193, in doit
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager result = proxy_call(self._autowrap, f, *args, **kwargs)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/eventlet/tpool.py", line 151, in proxy_call
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager rv = execute(f, *args, **kwargs)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/eventlet/tpool.py", line 132, in execute
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager six.reraise(c, e, tb)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/six.py", line 709, in reraise
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager raise value
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib/python3.9/site-packages/eventlet/tpool.py", line 86, in tworker
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager rv = meth(*args, **kwargs)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager File "/usr/lib64/python3.9/site-packages/libvirt.py", line 5201, in nodeDeviceLookupByName
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager ret = libvirtmod.virNodeDeviceLookupByName(self._o, name)
  2025-02-18 20:43:33.462 2 ERROR nova.compute.manager TypeError: virNodeDeviceLookupByName() argument 2 must be str or None, not Proxy

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