[Bug 2156932] Re: Spice console empty page due to PicklingError

[Kamil Sambor]

This issue should already be solved, and this Zuul run with Python 3.14
confirms it:
https://zuul.opendev.org/t/openstack/buildset/8ce3bcd2a7564a6387ceaabd369b5f61
(triggered by https://review.opendev.org/c/openstack/nova/+/987821)

** Changed in: nova
       Status: New => Fix Committed

** Changed in: nova
       Status: Fix Committed => New

** Changed in: nova
     Assignee: (unassigned) => Kamil Sambor (ksambor)

** Patch added: "https://review.opendev.org/c/openstack/nova/+/987815"
   https://review.opendev.org/c/openstack/nova/+/987815

** Changed in: nova
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/2156932

Title:
  Spice console empty page due to PicklingError

Status in OpenStack Compute (nova):
  Fix Committed
Status in nova package in Ubuntu:
  New
Status in nova source package in Resolute:
  New
Status in nova source package in Stonking:
  New

Bug description:
  [ Impact ]

  Ubuntu 26.04 / OpenStack Gazpacho; Spice console shows nothing
  (Firefox gets an empty page from the server).

  [ Other Information ]

  Reproducer:

  Deploy horizon on Ubuntu 26.04 via regress-stack [1] and attempt to
  use the spice console.

  In `/var/log/nova/nova-spiceproxy.log`:

  ```
  2026-06-16 15:21:17.063 96989 DEBUG nova.console.websocketproxy [-] 10.0.0.103: new handler Process vmsg /usr/lib/python3/dist-packages/websockify/websockifyserver.py:632
  2026-06-16 15:21:17.065 96989 INFO nova.console.websocketproxy [-] handler exception: Can't pickle <enum 'AddressFamily'>: it's not the same object as socket.AddressFamily
  2026-06-16 15:21:17.065 96989 DEBUG nova.console.websocketproxy [-] exception vmsg /usr/lib/python3/dist-packages/websockify/websockifyserver.py:632
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy Traceback (most recent call last):
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3/dist-packages/websockify/websockifyserver.py", line 839, in start_server
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     p.start()
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     ~~~~~~~^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/process.py", line 121, in start
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     self._popen = self._Popen(self)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy                   ~~~~~~~~~~~^^^^^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/context.py", line 230, in _Popen
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     return _default_context.get_context().Process._Popen(process_obj)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/context.py", line 294, in _Popen
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     return Popen(process_obj)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/popen_spawn_posix.py", line 32, in __init__
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     super().__init__(process_obj)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/popen_fork.py", line 20, in __init__
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     self._launch(process_obj)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     ~~~~~~~~~~~~^^^^^^^^^^^^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/popen_spawn_posix.py", line 47, in _launch
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     reduction.dump(process_obj, fp)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy   File "/usr/lib/python3.14/multiprocessing/reduction.py", line 60, in dump
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     ForkingPickler(file, protocol).dump(obj)
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy _pickle.PicklingError: Can't pickle <enum 'AddressFamily'>: it's not the same object as socket.AddressFamily
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing socket.AddressFamily reconstructor
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing socket.AddressFamily object
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing tuple item 1
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing eventlet.greenio.base.GreenSocket reconstructor arguments
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing eventlet.greenio.base.GreenSocket object
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing tuple item 0
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing dict item '_args'
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing multiprocessing.context.Process state
  2026-06-16 15:21:17.065 96989 ERROR nova.console.websocketproxy when serializing multiprocessing.context.Process object
  ```

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