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[OpenStack Infra <1974173@xxxxxxxxxxxxxxxxxx>]

This issue was fixed in the openstack/nova 25.1.0  release.

** Changed in: nova/yoga
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1974173

Title:
  Remaining ports are not unbound if one port is missing

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) train series:
  New
Status in OpenStack Compute (nova) ussuri series:
  New
Status in OpenStack Compute (nova) victoria series:
  New
Status in OpenStack Compute (nova) wallaby series:
  New
Status in OpenStack Compute (nova) xena series:
  Fix Released
Status in OpenStack Compute (nova) yoga series:
  Fix Released

Bug description:
  As part of the instance deletion process, we must unbind ports
  associated with said instance. To do this, we loop over all ports
  currently attached to an instance. However, if neutron returns HTTP
  404 (Not Found) for any of these ports, we will return early and fail
  to unbind the remaining ports. We've seen the problem in the context
  of Kubernetes on OpenStack. Our deinstaller is brute-force, so it
  deletes ports and servers at the same time, so a race means the port
  can get deleted early. This normally wouldn't be an issue as we'd just
  "untrunk" it and proceed to delete it. But that won't work for SR-IOV
  ports as in that case you cannot "untrunk" bound ports.

  The solution here is obvious: if we fail to find a port, we should
  simply skip that and continue unbinding everything else.

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