Re: [Python-Dev] Long-time shy failure in test_socket_ssl

March 20, 2006


      On 3/19/06, Tim Peters <tim.peters@gmail.com> wrote:
...
...
If anyone sees spurious failures with the buildbot (one time failures,
crashes, etc), please report the problems to python-dev.  It would be
great to see if you can reproduce the results with the same tests that
failed.  We need to determine if it is architecture specific,
test-order related, or something else.
One-shot segfaults are still common enough on the Mac box, like the very recent:
<http://www.python.org/dev/buildbot/all/g4%20osx.4%202.4/builds/18/step-test/...>
Most of the recent failures seem to be related to threads.  the most
recent info is below.  There's a lot more in case if it can help
someone debug.  It seems that one thread is in pthread_cond_wait and
another thread is in PyObject_Call.

n
--

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_INVALID_ADDRESS (0x0001) at 0xdbdbdc23

Thread 0:
0   libSystem.B.dylib   0x9002b8a8 semaphore_wait_signal_trap + 8
1   libSystem.B.dylib   0x9003001c pthread_cond_wait + 488
2   python.exe          0x0010a778 PyThread_acquire_lock + 240
(thread_pthread.h:416)
3   python.exe          0x000cdb84 PyEval_RestoreThread + 116 (ceval.c:306)
4   python.exe          0x000e0d58 file_dealloc + 160 (fileobject.c:310)
5   python.exe          0x00030b10 _Py_Dealloc + 68 (object.c:1872)
6   python.exe          0x000a02a4 tupledealloc + 348 (tupleobject.c:168)
7   python.exe          0x00030b10 _Py_Dealloc + 68 (object.c:1872)
8   python.exe          0x000dcb04 call_function + 1912 (ceval.c:3565)
9   python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
10  python.exe          0x000dcfe0 fast_function + 464 (ceval.c:3645)
11  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
12  python.exe          0x000d681c PyEval_EvalFrame + 34752
(ceval.c:2163)
13  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
14  python.exe          0x00118114 function_call + 556 (funcobject.c:548)
15  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
16  python.exe          0x000ddd24 ext_do_call + 764 (ceval.c:3840)
17  python.exe          0x000d6b10 PyEval_EvalFrame + 35508 (ceval.c:2203)
18  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
19  python.exe          0x00118114 function_call + 556 (funcobject.c:548)
20  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
21  python.exe          0x000cadd4 instancemethod_call + 736
(classobject.c:2447)
22  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
23  python.exe          0x0005681c slot_tp_call + 112 (typeobject.c:4533)
24  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
25  python.exe          0x000dd90c do_call + 168 (ceval.c:3771)
26  python.exe          0x000dccd0 call_function + 2372 (ceval.c:3586)
27  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
28  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
29  python.exe          0x00118114 function_call + 556 (funcobject.c:548)
30  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
31  python.exe          0x000ddd24 ext_do_call + 764 (ceval.c:3840)
32  python.exe          0x000d6b10 PyEval_EvalFrame + 35508 (ceval.c:2203)
33  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
34  python.exe          0x00118114 function_call + 556 (funcobject.c:548)
35  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
36  python.exe          0x000cadd4 instancemethod_call + 736
(classobject.c:2447)
37  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
38  python.exe          0x0005681c slot_tp_call + 112 (typeobject.c:4533)
39  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
40  python.exe          0x000dd90c do_call + 168 (ceval.c:3771)
41  python.exe          0x000dccd0 call_function + 2372 (ceval.c:3586)
42  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
43  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
44  python.exe          0x00118114 function_call + 556 (funcobject.c:548)
45  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
46  python.exe          0x000ddd24 ext_do_call + 764 (ceval.c:3840)
47  python.exe          0x000d6b10 PyEval_EvalFrame + 35508 (ceval.c:2203)
48  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
49  python.exe          0x00118114 function_call + 556 (funcobject.c:548)
50  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
51  python.exe          0x000cadd4 instancemethod_call + 736
(classobject.c:2447)
52  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
53  python.exe          0x0005681c slot_tp_call + 112 (typeobject.c:4533)
54  python.exe          0x00028e18 PyObject_Call + 96 (abstract.c:1795)
55  python.exe          0x000dd90c do_call + 168 (ceval.c:3771)
56  python.exe          0x000dccd0 call_function + 2372 (ceval.c:3586)
57  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
58  python.exe          0x000dcfe0 fast_function + 464 (ceval.c:3645)
59  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
60  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
61  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
62  python.exe          0x000dd150 fast_function + 832 (ceval.c:3656)
63  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
64  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
65  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
66  python.exe          0x000dd150 fast_function + 832 (ceval.c:3656)
67  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
68  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
69  python.exe          0x000dcfe0 fast_function + 464 (ceval.c:3645)
70  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
71  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
72  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
73  python.exe          0x000dd150 fast_function + 832 (ceval.c:3656)
74  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
75  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
76  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
77  python.exe          0x000dd150 fast_function + 832 (ceval.c:3656)
78  python.exe          0x000dccb0 call_function + 2340 (ceval.c:3584)
79  python.exe          0x000d681c PyEval_EvalFrame + 34752 (ceval.c:2163)
80  python.exe          0x000d9680 PyEval_EvalCodeEx + 4480 (ceval.c:2736)
81  python.exe          0x000ce040 PyEval_EvalCode + 84 (ceval.c:484)
82  python.exe          0x00013c7c run_node + 120 (pythonrun.c:1265)
83  python.exe          0x00013be0 run_err_node + 88 (pythonrun.c:1252)
84  python.exe          0x00013b6c PyRun_FileExFlags + 180 (pythonrun.c:1243)
85  python.exe          0x00011fbc PyRun_SimpleFileExFlags + 712
(pythonrun.c:860)
86  python.exe          0x00011408 PyRun_AnyFileExFlags + 168 (pythonrun.c:664)
87  python.exe          0x00008750 Py_Main + 3820 (main.c:493)
88  python.exe          0x000028d8 main + 40 (python.c:23)
89  python.exe          0x00002108 _start + 340 (crt.c:272)
90  python.exe          0x00001fb0 start + 60

Thread 1 Crashed:
0   python.exe          0x00028de8 PyObject_Call + 48 (abstract.c:1794)
1   python.exe          0x0002901c PyObject_CallFunction + 360 (abstract.c:1837)
2   _testcapi.so        0x049903d4 _make_call + 64 (_testcapimodule.c:569)
3   libSystem.B.dylib   0x9002b200 _pthread_body + 96

Re: [Python-Dev] Long-time shy failure in test_socket_ssl

Neal Norwitz