Ned Deily added the comment:
I've also seen a crash in lru_cache_tp_traverse but with the 3.5.0b3 release
build for the OS X 64-bit/32-bit installer. I just stumbled across the
segfault by bringing up the interactive interpreter and typing "import ssl".
After a lot of playing around, I reduced the failing case to: 1. have an
"import pprint" in a startup file referred to by PYTHONSTARTUP *and* 2. "import
ssl" must be the very first command entered in the interactive interpreter.
Odd! Unfortunately, the release build is a non-debug build and, so far, I have
not been able to reproduce the segfault with any other build, debug or
non-debug. So, whatever the problem is, it's very build dependent. Here is
the OS X system traceback from the segfault:
Path:
/Library/Frameworks/Python.framework/Versions/3.5.0b3_10_6/Resources/Python.app/Contents/MacOS/Python
Identifier: Python
Version: ???
Code Type: X86-64 (Native)
Parent Process: bash [51285]
Responsible: iTerm [754]
User ID: 503
Date/Time: 2015-07-10 19:57:16.086 -0700
OS Version: Mac OS X 10.10.4 (14E46)
Report Version: 11
Anonymous UUID: CFED52E3-698C-835B-D61C-F4B1F18D2CB6
Time Awake Since Boot: 800000 seconds
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000018
VM Regions Near 0x18:
-->
__TEXT 0000000100000000-0000000100001000 [ 4K] r-x/rwx
SM=COW
/Library/Frameworks/Python.framework/Versions/3.5.0b3_10_6/Resources/Python.app/Contents/MacOS/Python
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 org.python.python 0x000000010015e5e5
lru_cache_tp_traverse + 37
1 org.python.python 0x000000010013a2d7 collect + 439
2 org.python.python 0x000000010013aee5 _PyObject_GC_Alloc +
357
3 org.python.python 0x000000010013afe7 _PyObject_GC_New + 23
4 org.python.python 0x0000000100059bce PyDict_New + 334
5 org.python.python 0x000000010015f029 lru_cache_new + 249
6 org.python.python 0x00000001000795a6 type_call + 38
7 org.python.python 0x000000010000dc93 PyObject_Call + 99
8 org.python.python 0x00000001000e9fd8 PyEval_EvalFrameEx +
7656
9 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
10 org.python.python 0x00000001000f035d PyEval_EvalFrameEx +
33133
11 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
12 org.python.python 0x00000001000f1e07 PyEval_EvalCodeEx +
71
13 org.python.python 0x00000001000e5ff5
builtin___build_class__ + 485
14 org.python.python 0x0000000100065549 PyCFunction_Call +
281
15 org.python.python 0x00000001000f0768 PyEval_EvalFrameEx +
34168
16 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
17 org.python.python 0x00000001000f1e61 PyEval_EvalCode + 81
18 org.python.python 0x00000001000e5683 builtin_exec + 627
19 org.python.python 0x0000000100065519 PyCFunction_Call +
233
20 org.python.python 0x00000001000f0a9b PyEval_EvalFrameEx +
34987
21 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
22 org.python.python 0x00000001000f035d PyEval_EvalFrameEx +
33133
23 org.python.python 0x00000001000f07fd PyEval_EvalFrameEx +
34317
24 org.python.python 0x00000001000f07fd PyEval_EvalFrameEx +
34317
25 org.python.python 0x00000001000f07fd PyEval_EvalFrameEx +
34317
26 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
27 org.python.python 0x00000001000f1e07 PyEval_EvalCodeEx +
71
28 org.python.python 0x000000010004017a function_call + 186
29 org.python.python 0x000000010000dc93 PyObject_Call + 99
30 org.python.python 0x0000000100010ff6
_PyObject_CallMethodIdObjArgs + 454
31 org.python.python 0x000000010010d6d3
PyImport_ImportModuleLevelObject + 1171
32 org.python.python 0x00000001000e5e03 builtin___import__ +
131
33 org.python.python 0x0000000100065549 PyCFunction_Call +
281
34 org.python.python 0x000000010000dc93 PyObject_Call + 99
35 org.python.python 0x00000001000e64f7
PyEval_CallObjectWithKeywords + 87
36 org.python.python 0x00000001000ea43e PyEval_EvalFrameEx +
8782
37 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
38 org.python.python 0x00000001000f1e61 PyEval_EvalCode + 81
39 org.python.python 0x00000001000e5683 builtin_exec + 627
40 org.python.python 0x0000000100065519 PyCFunction_Call +
233
41 org.python.python 0x00000001000f0a9b PyEval_EvalFrameEx +
34987
42 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
43 org.python.python 0x00000001000f035d PyEval_EvalFrameEx +
33133
44 org.python.python 0x00000001000f07fd PyEval_EvalFrameEx +
34317
45 org.python.python 0x00000001000f07fd PyEval_EvalFrameEx +
34317
46 org.python.python 0x00000001000f07fd PyEval_EvalFrameEx +
34317
47 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
48 org.python.python 0x00000001000f1e07 PyEval_EvalCodeEx +
71
49 org.python.python 0x000000010004017a function_call + 186
50 org.python.python 0x000000010000dc93 PyObject_Call + 99
51 org.python.python 0x0000000100010ff6
_PyObject_CallMethodIdObjArgs + 454
52 org.python.python 0x000000010010d6d3
PyImport_ImportModuleLevelObject + 1171
53 org.python.python 0x00000001000e5e03 builtin___import__ +
131
54 org.python.python 0x0000000100065549 PyCFunction_Call +
281
55 org.python.python 0x000000010000dc93 PyObject_Call + 99
56 org.python.python 0x00000001000e64f7
PyEval_CallObjectWithKeywords + 87
57 org.python.python 0x00000001000ea43e PyEval_EvalFrameEx +
8782
58 org.python.python 0x00000001000f1d00
_PyEval_EvalCodeWithName + 2400
59 org.python.python 0x00000001000f1e61 PyEval_EvalCode + 81
60 org.python.python 0x000000010011fa7a
PyRun_InteractiveOneObject + 474
61 org.python.python 0x000000010011fdfe
PyRun_InteractiveLoopFlags + 110
62 org.python.python 0x000000010012076c PyRun_AnyFileExFlags
+ 76
63 org.python.python 0x00000001001390a9 Py_Main + 3785
64 org.python.python 0x0000000100000e32 0x100000000 + 3634
65 org.python.python 0x0000000100000c84 0x100000000 + 3204
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x000000010023d6c0 rbx: 0x00000001006fdb70 rcx: 0x0000000100382048
rdx: 0x0000000000000000
rdi: 0x0000000000000000 rsi: 0x00000001001392e0 rbp: 0x00007fff5bffb530
rsp: 0x00007fff5bffb510
r8: 0x0000000000000000 r9: 0x0000000000000001 r10: 0x0000000000000016
r11: 0x00000001001392e0
r12: 0x00000001006fdb88 r13: 0x0000000000000000 r14: 0x00000001001392e0
r15: 0x000000010102fdb8
rip: 0x000000010015e5e5 rfl: 0x0000000000010206 cr2: 0x0000000000000018
----------
nosy: +ned.deily
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Python tracker <[email protected]>
<http://bugs.python.org/issue14373>
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