Jeremy Kloth <jeremy.kloth+python-trac...@gmail.com> added the comment:
I've been able locally to reproduce the test_subprocess hang. The responsible function is subprocess.run(). The test case, test_timeout(), uses a small timeout value (0.0001), which, when given enough load, can cause the run() call to hang. A judicious use of prints in subprocess.py, reveals that the timeout passed to wait() ends up being negative. That value, once cast to a DWORD, ultimately causes a very long wait (0xfffffff2, in my testing). It does seem that only the Windows Popen._wait() cannot handle negative timeout values, so the fix should be as simple as coercing the timeout values to >= 0. ---------- Added file: https://bugs.python.org/file50623/process.py _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46716> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
