STINNER Victor <victor.stin...@gmail.com> added the comment: I'm able to reproduce the failure on my Fedora 27 using two terminals:
(1) Run the test in a loop: vstinner@apu$ ./python -m test -v test_ftplib -m test_check_hostname -F (2) Stress the system, example: vstinner@apu$ ./python -m test -j0 -r When the system load becomes higher than 2 (I have 8 logical CPUs), test_check_hostname() fails. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32706> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com