[Python-Dev] update on memory leaks in 2.2 (original) (raw)

Neal Norwitz neal@metaslash.com
Fri, 07 Dec 2001 11:54:54 -0500

Guido van Rossum wrote:

> Command line: (longexp crashes purify for some reason) > ./python -E -tt ./Lib/test/regrtest.py -u network -x testlongexp.py > > Results: > 168 tests OK. > 1 test failed: > testsocketssl > 15 tests skipped: > testal testbsddb testcd testcl testcurses testdl testgl > testimgfile testlinuxaudiodev testnis testntpath testopenpty > testsundry testwinreg testwinsound A few of these skips weren't expected: testsundry, testopenpty, testbsddb. What's missing to run those?

The platform is Sun Solaris 8 (2.8). Purify 2002.

For bsddb, do I need to install something that isn't "standard"?

test test_openpty skipped -- No openpty() available.

> Potential Memory Leaks: > > 1012 from 4 different allocating points -- all in WeakRef

Any more info on these, or are these just red herrings?

The details are below.

Neal

     PLK: 704 bytes potentially leaked in 16 blocks
     This memory was allocated from:
           malloc         [rtlib.o]
           _PyObject_GC_New [gcmodule.c:832]
           PyWeakref_NewRef [weakrefobject.c:37]
           weakref_ref    [_weakref.c:73]
           PyCFunction_Call [methodobject.c:101]
           eval_frame     [ceval.c:1989]
           PyEval_EvalCodeEx [ceval.c:2570]
           function_call  [funcobject.c:374]
           PyObject_Call  [abstract.c:1665]
           instancemethod_call [classobject.c:2276]
           PyObject_Call  [abstract.c:1665]
           PyEval_CallObjectWithKeywords [ceval.c:3034]
     Block of 44 bytes (16 times); last block at 0x18bf0a8

--

     PLK: 220 bytes potentially leaked in 5 blocks
     This memory was allocated from:
           malloc         [rtlib.o]
           _PyObject_GC_New [gcmodule.c:832]
           PyWeakref_NewRef [weakrefobject.c:37]
           add_subclass   [typeobject.c:2054]
           PyType_Ready   [typeobject.c:2026]
           type_new       [typeobject.c:1142]
           type_call      [typeobject.c:148]
           PyObject_Call  [abstract.c:1665]
           PyEval_CallObjectWithKeywords [ceval.c:3034]
           PyObject_CallFunction [abstract.c:1656]
           build_class    [ceval.c:3583]
           eval_frame     [ceval.c:1507]
     Block of 44 bytes (5 times); last block at 0xced9b8

--

     PLK: 44 bytes potentially leaked at 0xcb2ba8
     This memory was allocated from:
           malloc         [rtlib.o]
           _PyObject_GC_New [gcmodule.c:832]
           PyWeakref_NewRef [weakrefobject.c:37]
           add_subclass   [typeobject.c:2054]
           PyType_Ready   [typeobject.c:2026]
           type_new       [typeobject.c:1142]
           tp_new_wrapper [typeobject.c:2586]
           PyCFunction_Call [methodobject.c:69]
           PyObject_Call  [abstract.c:1665]
           do_call        [ceval.c:3247]
           eval_frame     [ceval.c:1984]
           PyEval_EvalCodeEx [ceval.c:2570]

--

     PLK: 44 bytes potentially leaked at 0xcb3470
     This memory was allocated from:
           malloc         [rtlib.o]
           _PyObject_GC_New [gcmodule.c:832]
           PyWeakref_NewRef [weakrefobject.c:37]
           add_subclass   [typeobject.c:2054]
           PyType_Ready   [typeobject.c:2026]
           type_new       [typeobject.c:1142]
           tp_new_wrapper [typeobject.c:2586]
           PyCFunction_Call [methodobject.c:69]
           PyObject_Call  [abstract.c:1665]
           slot_tp_new    [typeobject.c:3355]
           type_call      [typeobject.c:148]
           PyObject_Call  [abstract.c:1665]