Pablo Galindo Salgado <pablog...@gmail.com> added the comment: Even valgrind sees the problem:
❯ valgrind ./python -m test test_lib2to3 ==27010== Memcheck, a memory error detector ==27010== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==27010== Using Valgrind-3.17.0 and LibVEX; rerun with -h for copyright info ==27010== Command: ./python -m test test_lib2to3 ==27010== 0:00:00 load avg: 1.53 Run tests sequentially 0:00:00 load avg: 1.53 [1/1] test_lib2to3 ==27010== Invalid read of size 8 ==27010== at 0x2363E1: _PyEval_EvalFrameDefault (ceval.c:3549) ==27010== by 0x23B270: _PyEval_EvalFrame (pycore_ceval.h:46) ==27010== by 0x23B270: _PyEval_Vector (ceval.c:5174) ==27010== by 0x172498: _PyFunction_Vectorcall (call.c:342) ==27010== by 0x2278AF: _PyObject_VectorcallTstate (abstract.h:114) ==27010== by 0x22C88F: PyObject_Vectorcall (abstract.h:123) ==27010== by 0x22C88F: call_function (ceval.c:6001) ==27010== by 0x239642: _PyEval_EvalFrameDefault (ceval.c:4200) ==27010== by 0x23B270: _PyEval_EvalFrame (pycore_ceval.h:46) ==27010== by 0x23B270: _PyEval_Vector (ceval.c:5174) ==27010== by 0x172498: _PyFunction_Vectorcall (call.c:342) ==27010== by 0x2278AF: _PyObject_VectorcallTstate (abstract.h:114) ==27010== by 0x22C88F: PyObject_Vectorcall (abstract.h:123) ==27010== by 0x22C88F: call_function (ceval.c:6001) ==27010== by 0x239642: _PyEval_EvalFrameDefault (ceval.c:4200) ==27010== by 0x23B270: _PyEval_EvalFrame (pycore_ceval.h:46) ==27010== by 0x23B270: _PyEval_Vector (ceval.c:5174) ==27010== Address 0x62c5e28 is 8 bytes after a block of size 160 alloc'd ==27010== at 0x483E7C5: malloc (vg_replace_malloc.c:380) ==27010== by 0x1B2911: _PyMem_RawMalloc (obmalloc.c:99) ==27010== by 0x1B4702: PyObject_Malloc (obmalloc.c:697) ==27010== by 0x1A1EF9: clone_combined_dict_keys (dictobject.c:678) ==27010== by 0x1A2216: dict_merge (dictobject.c:2453) ==27010== by 0x1A2A59: PyDict_Merge (dictobject.c:2603) ==27010== by 0x1A2AF1: dict_update_arg (dictobject.c:2273) ==27010== by 0x1A2D4E: dict_update_common (dictobject.c:2298) ==27010== by 0x1A2DD1: dict_update (dictobject.c:2316) ==27010== by 0x33FCBA: method_vectorcall_VARARGS_KEYWORDS (descrobject.c:346) ==27010== by 0x2278AF: _PyObject_VectorcallTstate (abstract.h:114) ==27010== by 0x22C88F: PyObject_Vectorcall (abstract.h:123) ==27010== by 0x22C88F: call_function (ceval.c:6001) ==27010== ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44363> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com