[issue32818] multiprocessing segmentfault under Windows compatibility mode

[Ma Lin]

Ma Lin <malincns at 163.com> added the comment:

Here is two traceback messages:

D:\git\cpython\PCbuild\win32>python.exe -X dev d:\git\cpython\Lib\test\test_multiprocess
ing_main_handling.py
ssssssssssssssssssssssssssFFFFFFFFFFFFF
======================================================================
FAIL: test_basic_script (__main__.SpawnCmdLineTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "d:\git\cpython\Lib\test\test_multiprocessing_main_handling.py", line 162, in test_basic_script
    self._check_script(script_name)
  File "d:\git\cpython\Lib\test\test_multiprocessing_main_handling.py", line 156, in _check_script
    rc, out, err = assert_python_ok(*run_args, __isolated=False)
  File "D:\git\cpython\lib\test\support\script_helper.py", line 151, in assert_python_ok

    return _assert_python(True, *args, **env_vars)
  File "D:\git\cpython\lib\test\support\script_helper.py", line 137, in _assert_python
    res.fail(cmd_line)
  File "D:\git\cpython\lib\test\support\script_helper.py", line 79, in fail
    err))
AssertionError: Process return code is 3221225477
command line: ['D:\\git\\cpython\\PCbuild\\win32\\python.exe', '-X', 'faulthandler', '-E
', 'C:\\Users\\anima\\AppData\\Local\\Temp\\tmplgfds7rc\\script.py', 'spawn']

stdout:
---

---

stderr:
---
Windows fatal exception: access violation

Current thread 0x00001930 (most recent call first):
  File "D:\git\cpython\lib\multiprocessing\popen_spawn_win32.py", line 48 in __init__
  File "D:\git\cpython\lib\multiprocessing\context.py", line 322 in _Popen
  File "D:\git\cpython\lib\multiprocessing\process.py", line 112 in start
  File "D:\git\cpython\lib\multiprocessing\pool.py", line 241 in _repopulate_pool
  File "D:\git\cpython\lib\multiprocessing\pool.py", line 176 in __init__
  File "D:\git\cpython\lib\multiprocessing\context.py", line 119 in Pool
  File "C:\Users\anima\AppData\Local\Temp\tmplgfds7rc\script.py", line 27 in <module>
---

======================================================================
FAIL: test_basic_script_no_suffix (__main__.SpawnCmdLineTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "d:\git\cpython\Lib\test\test_multiprocessing_main_handling.py", line 168, in test_basic_script_no_suffix
    self._check_script(script_name)
  File "d:\git\cpython\Lib\test\test_multiprocessing_main_handling.py", line 156, in _check_script
    rc, out, err = assert_python_ok(*run_args, __isolated=False)
  File "D:\git\cpython\lib\test\support\script_helper.py", line 151, in assert_python_ok

    return _assert_python(True, *args, **env_vars)
  File "D:\git\cpython\lib\test\support\script_helper.py", line 137, in _assert_python
    res.fail(cmd_line)
  File "D:\git\cpython\lib\test\support\script_helper.py", line 79, in fail
    err))
AssertionError: Process return code is 3221225477
command line: ['D:\\git\\cpython\\PCbuild\\win32\\python.exe', '-X', 'faulthandler', '-E
', 'C:\\Users\\anima\\AppData\\Local\\Temp\\tmpkovn5nfz\\script', 'spawn']

stdout:
---

---

stderr:
---
Windows fatal exception: access violation

Current thread 0x00001d00 (most recent call first):
  File "D:\git\cpython\lib\multiprocessing\popen_spawn_win32.py", line 48 in __init__
  File "D:\git\cpython\lib\multiprocessing\context.py", line 322 in _Popen
  File "D:\git\cpython\lib\multiprocessing\process.py", line 112 in start
  File "D:\git\cpython\lib\multiprocessing\pool.py", line 241 in _repopulate_pool
  File "D:\git\cpython\lib\multiprocessing\pool.py", line 176 in __init__
  File "D:\git\cpython\lib\multiprocessing\context.py", line 119 in Pool
  File "C:\Users\anima\AppData\Local\Temp\tmpkovn5nfz\script", line 27 in <module>
---

----------

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32818>
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