Ｃ调用Python崩溃的记录

　　也不确定哪里出了问题。

　　根据目前了解的情况，出错原因如下：

1. 新产生一个数组缓冲区。
2. 产生调用Python的数组参数。
3. 销毁该缓冲区。
4. 调用Python函数。

　　这时发现这个缓冲区已经销毁了，于是出错了。

　　正确做法是，３、４颠倒。

　　参考《C向Python传递数组参数时，调用函数后才能销毁》。

　　

#0  0x00007f474329b984 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
[Current thread is 1 (Thread 0x7f470affd700 (LWP 31868))]
(gdb)
(gdb) backtrace
#0  0x00007f474329b984 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#1  0x00007f4743324106 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#2  0x00007f47432a01a7 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#3  0x00007f47432a0e3b in _PyObject_GC_Malloc ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#4  0x00007f47432903eb in PyType_GenericAlloc ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#5  0x00007f4608204ab8 in THPVariable_NewWithVar (type=,
    var=...) at torch/csrc/autograd/python_variable.cpp:48
#6  0x00007f4608206659 in THPVariable_Wrap (var=...)
    at torch/csrc/autograd/python_variable.cpp:75
#7  0x00007f460820dcbc in torch::autograd::utils::wrap (tensor=...)
    at /pytorch/torch/csrc/autograd/utils/wrap_outputs.h:18
#8  torch::autograd::THPVariable_getitem (self=0x7f45b015f370,
    index=0x7f4690018a58)
    at torch/csrc/autograd/python_variable_indexing.cpp:292
#9  0x00007f47432739fd in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#10 0x00007f47433af11c in PyEval_EvalCodeEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
---Type  to continue, or q  to quit---
#11 0x00007f47433053b0 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#12 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#13 0x00007f474324474a in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#14 0x00007f47432d7afb in PyIter_Next ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#15 0x00007f474327b593 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#16 0x00007f47432799b1 in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#17 0x00007f47433af11c in PyEval_EvalCodeEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#18 0x00007f4743277f5d in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#19 0x00007f47433af11c in PyEval_EvalCodeEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#20 0x00007f47433053b0 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#21 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#22 0x00007f474334c46c in ?? ()
---Type  to continue, or q  to quit---
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#23 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#24 0x00007f47432f9535 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#25 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#26 0x00007f474327639c in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#27 0x00007f47433af11c in PyEval_EvalCodeEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#28 0x00007f47433053b0 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#29 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#30 0x00007f474334c46c in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#31 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#32 0x00007f47432f9535 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#33 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
---Type  to continue, or q  to quit---
#34 0x00007f474327639c in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#35 0x00007f47433af11c in PyEval_EvalCodeEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#36 0x00007f4743277f5d in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#37 0x00007f47433af11c in PyEval_EvalCodeEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#38 0x00007f47433053b0 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#39 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#40 0x00007f474334c46c in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#41 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#42 0x00007f47432f9535 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#43 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#44 0x00007f474327639c in PyEval_EvalFrameEx ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#45 0x00007f47433af11c in PyEval_EvalCodeEx ()
---Type  to continue, or q  to quit---
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#46 0x00007f47433053b0 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#47 0x00007f47432d82b3 in PyObject_Call ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#48 0x00007f47433ae547 in PyEval_CallObjectWithKeywords ()
   from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#49 0x00007f4746ae7342 in PythonClass::python_function (this=0x7f46900008c0,