STINNER Victor <vstin...@python.org> added the comment:
Valgrind detects the bug (unmodified Python): $ PYTHONMALLOC=debug valgrind ./python ref.py (...) ==607098== Invalid read of size 8 ==607098== at 0x493FBE: subtype_dealloc (typeobject.c:1456) ==607098== by 0x47C914: _Py_Dealloc (object.c:2288) ==607098== by 0x45F6BF: _Py_DECREF (object.h:500) ==607098== by 0x45F70D: _Py_XDECREF (object.h:567) ==607098== by 0x4654F5: dict_dealloc (dictobject.c:2068) ==607098== by 0x47C914: _Py_Dealloc (object.c:2288) ==607098== by 0x668EBE: _Py_DECREF (object.h:500) ==607098== by 0x66E8BE: ast_dealloc (Python-ast.c:764) ==607098== by 0x493FB9: subtype_dealloc (typeobject.c:1450) (...) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44184> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
