STINNER Victor <vstin...@redhat.com> added the comment:
Oh... test_threaded_import started to crash on Python 2.7: $ ./python -m test -F -v test_threaded_import (...) 0:00:00 load avg: 1.06 [ 3] test_threaded_import Trying 20 threads ... OK. Trying 50 threads ... OK. Trying 20 threads ... OK. Segmentation fault (core dumped) The problem is that PyMem_Malloc() is not thread safe when Python is compiled in debug mode! In release mode, it's safe because PyMem_Malloc() is a thin wrapper to malloc(). But in debug mode, PyMem_Malloc() uses the debug hooks and... pymalloc allocator which is not thread-safe! ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33015> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
