New submission from Dan Yeaw <d...@yeaw.me>:
When running pytest --doctest-modules, I am getting seg faults on the GitHub
Actions CI when running doctests covering module docstrings.
runner@fv-az177-300:~/work/gaphor/gaphor$ source .venv/bin/activate
(.venv) runner@fv-az177-300:~/work/gaphor/gaphor$ xvfb-run gdb python
(gdb) run -m pytest
Starting program: /home/runner/work/gaphor/gaphor/.venv/bin/python -m pytest
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffecd32700 (LWP 22846)]
[New Thread 0x7fffebd31700 (LWP 22847)]
[New Thread 0x7fffead30700 (LWP 22848)]
[New Thread 0x7fffe9d2f700 (LWP 22849)]
[New Thread 0x7fffdbfff700 (LWP 22850)]
[New Thread 0x7fffdaffe700 (LWP 22851)]
[New Thread 0x7fffd9ffd700 (LWP 22852)]
[New Thread 0x7fffcffff700 (LWP 22853)]
[Detaching after fork from child process 22854]
============================= test session starts ==============================
platform linux -- Python 3.10.0, pytest-6.2.5, py-1.11.0, pluggy-1.0.0
rootdir: /home/runner/work/gaphor/gaphor, configfile: pyproject.toml,
testpaths: gaphor, tests, docs
plugins: mock-3.6.1, cov-3.0.0
collected 1135 items
gaphor/action.py
Thread 1 "python" received signal SIGSEGV, Segmentation fault.
__GI___libc_free (mem=0x20) at malloc.c:3102
3102 malloc.c: No such file or directory.
(gdb) source python-gdb.py
(gdb) py-bt
Traceback (most recent call first):
<built-in method create_dynamic of module object at remote 0x7ffff78ebcb0>
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "<frozen importlib._bootstrap_external>", line 1176, in create_module
File "<frozen importlib._bootstrap>", line 571, in module_from_spec
File "<frozen importlib._bootstrap>", line 674, in _load_unlocked
File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
File "/opt/hostedtoolcache/Python/3.10.0/x64/lib/python3.10/pdb.py", line
157, in __init__
import readline
File "/opt/hostedtoolcache/Python/3.10.0/x64/lib/python3.10/doctest.py", line
364, in __init__
pdb.Pdb.__init__(self, stdout=out, nosigint=True)
File "/opt/hostedtoolcache/Python/3.10.0/x64/lib/python3.10/doctest.py", line
1481, in run
self.debugger = _OutputRedirectingPdb(save_stdout)
File "/opt/hostedtoolcache/Python/3.10.0/x64/lib/python3.10/doctest.py", line
1856, in run
r = DocTestRunner.run(self, test, compileflags, out, False)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/doctest.py",
line 287, in runtest
self.runner.run(self.dtest, out=failures) # type: ignore[arg-type]
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 162, in pytest_runtest_call
item.runtest()
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_callers.py",
line 39, in _multicall
res = hook_impl.function(*args)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_manager.py",
line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_hooks.py",
line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 255, in <lambda>
lambda: ihook(item=item, **kwds), when=when, reraise=reraise
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 311, in from_call
result: Optional[TResult] = func()
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 254, in call_runtest_hook
return CallInfo.from_call(
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 215, in call_and_report
call = call_runtest_hook(item, when, **kwds)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 126, in runtestprotocol
reports.append(call_and_report(item, "call", log))
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/runner.py",
line 109, in pytest_runtest_protocol
runtestprotocol(item, nextitem=nextitem)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_callers.py",
line 39, in _multicall
res = hook_impl.function(*args)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_manager.py",
line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_hooks.py",
line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/main.py",
line 348, in pytest_runtestloop
item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_callers.py",
line 39, in _multicall
res = hook_impl.function(*args)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_manager.py",
line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_hooks.py",
line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/main.py",
line 323, in _main
config.hook.pytest_runtestloop(session=session)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/main.py",
line 269, in wrap_session
session.exitstatus = doit(config, session) or 0
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/main.py",
line 316, in pytest_cmdline_main
return wrap_session(config, _main)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_callers.py",
line 39, in _multicall
res = hook_impl.function(*args)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_manager.py",
line 80, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pluggy/_hooks.py",
line 265, in __call__
return self._hookexec(self.name, self.get_hookimpls(), kwargs, firstresult)
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/config/__init__.py",
line 162, in main
ret: Union[ExitCode, int] = config.hook.pytest_cmdline_main(
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/_pytest/config/__init__.py",
line 185, in console_main
code = main()
File
"/home/runner/work/gaphor/gaphor/.venv/lib/python3.10/site-packages/pytest/__main__.py",
line 5, in <module>
raise SystemExit(pytest.console_main())
<built-in method exec of module object at remote 0x7ffff78d3d10>
File "/opt/hostedtoolcache/Python/3.10.0/x64/lib/python3.10/runpy.py", line
86, in _run_code
exec(code, run_globals)
File "/opt/hostedtoolcache/Python/3.10.0/x64/lib/python3.10/runpy.py", line
196, in _run_module_as_main
return _run_code(code, main_globals, None,
action.py is part of the Gaphor project here: https://github.com/gaphor/gaphor
The doctest that it is seg faulting on is:
>>> class A:
... @action(name="my_action", label="my action")
... def myaction(self):
... print("action called")
>>> a = A()
>>> a.myaction()
action called
>>> is_action(a.myaction)
True
>>> for method in dir(A):
... if is_action(getattr(A, method, None)):
... print(method)
myaction
>>> A.myaction.__action__.name
'my_action'
>>> A.myaction.__action__.label
'my action'
"""
Running the doctests works fine manually:
dan@localhost:~/Projects/gaphor> python -m doctest -v gaphor/action.py
Trying:
class A:
@action(name="my_action", label="my action")
def myaction(self):
print("action called")
Expecting nothing
ok
Trying:
a = A()
Expecting nothing
ok
Trying:
a.myaction()
Expecting:
action called
ok
Trying:
is_action(a.myaction)
Expecting:
True
ok
Trying:
for method in dir(A):
if is_action(getattr(A, method, None)):
print(method)
Expecting:
myaction
ok
Trying:
A.myaction.__action__.name
Expecting:
'my_action'
ok
Trying:
A.myaction.__action__.label
Expecting:
'my action'
ok
5 items had no tests:
action
action.action.__call__
action.action.__init__
action.action.detailed_name
action.is_action
1 items passed all tests:
7 tests in action.action
7 tests in 6 items.
7 passed and 0 failed.
Test passed.
If I disable this doctests, the other doctests will seg fault as well. Using
xdoctest instead of doctest also fixes the seg fault.
I compiled Python 3.10.0 with debug enabled on the GitHub Actions runner, so I
can provide the full backtrace if that is helpful.
----------
components: Library (Lib)
messages: 407184
nosy: danyeaw
priority: normal
severity: normal
status: open
title: Doctest Seg Fault with Python 3.10 on CI
type: crash
versions: Python 3.10
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue45913>
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