[Webkit-unassigned] [Bug 247843] [GLIB] Deadlock in Layout, API and WebDriver tests in debug bots

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=247843

Lauro Moura <lmoura at igalia.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugs-noreply at webkitgtk.org,
                   |                            |clopez at igalia.com,
                   |                            |dpino at igalia.com

--- Comment #1 from Lauro Moura <lmoura at igalia.com> ---
Example worker trace from WPE-Debug build https://build.webkit.org/#/builders/14/builds/4074

https://build.webkit.org/results/WPE-Linux-64-bit-Debug-Tests/256601@main%20(4074)/74-python_stack_trace.txt

SIGTERM signal receivedTraceback(most recent call last):
  File "/app/webkit/Tools/Scripts/run-webkit-tests", line 46, in <module>
    sys.exit(main(sys.argv[1:], sys.stdout, sys.stderr))
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 92, in main
    run_details = run(port, options, args, stderr)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 501, in run
    run_details = manager.run(args)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py", line 413, in run
    temp_initial_results, temp_retry_results, temp_enabled_pixel_tests_in_retry = self._run_test_subset(test_inputs, device_type=device_type)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py", line 487, in _run_test_subset
    initial_results = self._run_tests(test_inputs, self._options.repeat_each, self._options.iterations, int(self._options.child_processes), retrying=False, device_type=device_type)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/manager.py", line 570, in _run_tests
    return self._runner.run_tests(self._expectations[device_type], new_test_inputs, num_workers, retrying, device_type)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 166, in run_tests
    with TaskPool(
  File "/app/webkit/Tools/Scripts/libraries/webkitcorepy/webkitcorepy/task_pool.py", line 396, in __enter__
    worker.start()
  File "/usr/lib/python3.10/multiprocessing/process.py", line 121, in start
    self._popen = self._Popen(self)
  File "/usr/lib/python3.10/multiprocessing/context.py", line 224, in _Popen
    return _default_context.get_context().Process._Popen(process_obj)
  File "/usr/lib/python3.10/multiprocessing/context.py", line 281, in _Popen
    return Popen(process_obj)
  File "/usr/lib/python3.10/multiprocessing/popen_fork.py", line 19, in __init__
    self._launch(process_obj)
  File "/usr/lib/python3.10/multiprocessing/popen_fork.py", line 71, in _launch
    code = process_obj._bootstrap(parent_sentinel=child_r)
  File "/usr/lib/python3.10/multiprocessing/process.py", line 314, in _bootstrap
    self.run()
  File "/usr/lib/python3.10/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/app/webkit/Tools/Scripts/libraries/webkitcorepy/webkitcorepy/task_pool.py", line 303, in main
    queue.send(_Result(value=task(None), id=task.id))
  File "/app/webkit/Tools/Scripts/libraries/webkitcorepy/webkitcorepy/task_pool.py", line 56, in __call__
    return self.function(*self.args, **self.kwargs)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 77, in run_shard
    return Worker.instance.run_tests(shard)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 319, in run_tests
    Worker.instance.run_test(input, shard.name)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 347, in run_test
    result = self._run_test_with_or_without_timeout(test_input, test_timeout_sec, stop_when_done)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 404, in _run_test_with_or_without_timeout
    return self._run_test_in_this_thread(test_input, stop_when_done)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 490, in _run_test_in_this_thread
    return self._run_single_test(self._driver, test_input, stop_when_done)
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/layout_test_runner.py", line 493, in _run_single_test
    return single_test_runner.run_single_test(
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/single_test_runner.py", line 48, in run_single_test
    return runner.run()
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/single_test_runner.py", line 128, in run
    return self._run_compare_test()
  File "/app/webkit/Tools/Scripts/webkitpy/layout_tests/controllers/single_test_runner.py", line 131, in _run_compare_test
    driver_output = self._driver.run_test(self._driver_input(), self._stop_when_done)
  File "/app/webkit/Tools/Scripts/webkitpy/port/driver.py", line 863, in run_test
    return self._driver.run_test(driver_input, stop_when_done)
  File "/app/webkit/Tools/Scripts/webkitpy/port/driver.py", line 234, in run_test
    text, audio = self._read_first_block(deadline, driver_input.test_name)  # First block is either text or audio
  File "/app/webkit/Tools/Scripts/webkitpy/port/driver.py", line 673, in _read_first_block
    block = self._read_block(deadline, test_name)
  File "/app/webkit/Tools/Scripts/webkitpy/port/driver.py", line 735, in _read_block
    out_line, err_line = self._server_process.read_either_stdout_or_stderr_line(deadline)
  File "/app/webkit/Tools/Scripts/webkitpy/port/server_process.py", line 237, in read_either_stdout_or_stderr_line
    return_value = self._read(deadline, retrieve_bytes_from_buffers)
  File "/app/webkit/Tools/Scripts/webkitpy/port/server_process.py", line 385, in _read
    self._wait_for_data_and_update_buffers_using_select(deadline)
  File "/app/webkit/Tools/Scripts/webkitpy/port/server_process.py", line 286, in _wait_for_data_and_update_buffers_using_select
    read_fds, _, _ = select.select(select_fds, [], select_fds, max(deadline - time.time(), 0))

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