Intermittent testbed failure in CI on Linux #2648
Description
Describe the bug
We have an intermittent build failure on the GTK testbed test, with a segfault from the PyGObject layer.
Steps to reproduce
Run the Linux testbed test. The failure isn't especially reproducible; re-running the test suite almost always passes. this is the most recent example.
Expected behavior
Test suite should pass without error.
Screenshots
No response
Environment
- Operating System: Ubuntu 22.04
- Python version: 3.10
- Software versions:
- Toga: 0.4.5+
Logs
tests/widgets/test_selection.py::test_flex_horizontal_widget_size <- tests/widgets/properties.py PASSED [ 64%]
tests/widgets/test_selection.py::test_font <- tests/widgets/properties.py PASSED [ 64%]
tests/widgets/test_selection.py::test_font_attrs <- tests/widgets/properties.py PASSED [ 65%]
tests/widgets/test_selection.py::test_item_titles Fatal Python error: Aborted
Current thread 0x00007f2d05dfb640 (most recent call first):
Garbage-collecting
File "/usr/lib/python3.10/inspect.py", line 2969 in __init__
File "/usr/lib/python3.10/inspect.py", line 2370 in _signature_from_function
File "/usr/lib/python3.10/inspect.py", line 2463 in _signature_from_callable
File "/usr/lib/python3.10/inspect.py", line 3002 in from_callable
File "/usr/lib/python3.10/inspect.py", line 3254 in signature
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pytest_asyncio/plugin.py", line 240 in _add_kwargs
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pytest_asyncio/plugin.py", line 278 in _asyncgen_fixture_wrapper
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 907 in call_fixture_func
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 1128 in pytest_fixture_setup
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_callers.py", line 103 in _multicall
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_manager.py", line 120 in _hookexec
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_hooks.py", line 513 in __call__
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 1074 in execute
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 676 in _compute_fixture_value
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 590 in _get_active_fixturedef
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 568 in getfixturevalue
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/fixtures.py", line 549 in _fillfixtures
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/python.py", line 1792 in setup
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 492 in setup
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 155 in pytest_runtest_setup
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_callers.py", line 103 in _multicall
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_manager.py", line 120 in _hookexec
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_hooks.py", line 513 in __call__
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 260 in <lambda>
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 339 in from_call
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 259 in call_runtest_hook
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 220 in call_and_report
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 125 in runtestprotocol
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/runner.py", line 112 in pytest_runtest_protocol
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_callers.py", line 103 in _multicall
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_manager.py", line 120 in _hookexec
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_hooks.py", line 513 in __call__
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/main.py", line 349 in pytest_runtestloop
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_callers.py", line 103 in _multicall
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_manager.py", line 120 in _hookexec
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_hooks.py", line 513 in __call__
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/main.py", line 324 in _main
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/main.py", line 270 in wrap_session
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/main.py", line 317 in pytest_cmdline_main
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_callers.py", line 103 in _multicall
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_manager.py", line 120 in _hookexec
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/pluggy/_hooks.py", line 513 in __call__
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/_pytest/config/__init__.py", line 167 in main
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app/tests/testbed.py", line 29 in run_tests
File "/usr/lib/python3.10/threading.py", line 953 in run
File "/usr/lib/python3.10/threading.py", line 1016 in _bootstrap_inner
File "/usr/lib/python3.10/threading.py", line 973 in _bootstrap
Thread 0x00007f2d17eb5480 (most recent call first):
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/gi/overrides/Gio.py", line 42 in run
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/gbulb/glib_events.py", line 839 in run
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/gbulb/gtk.py", line 39 in run
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/gbulb/glib_events.py", line 886 in run_forever
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/toga_gtk/app.py", line 198 in main_loop
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app_packages/toga/app.py", line 632 in main_loop
File "/home/runner/work/toga/toga/testbed/build/testbed/ubuntu/jammy/testbed-0.0.1/usr/lib/testbed/app/tests/testbed.py", line 163 in <module>
File "/usr/lib/python3.10/runpy.py", line 86 in _run_code
File "/usr/lib/python3.10/runpy.py", line 196 in _run_module_as_main
Extension modules: gi._gi, cairo._cairo, gi._gi_cairo, PIL._imaging, PIL._imagingft (total: 5)
Test suite didn't report a result.
Additional context
No response