[C++-sig] double free segfaults

[Ellery Newcomer]

Hello all.

I have been trying to wrap a third party C++ library with boost::python
(first time using boost::python!), and on a very simple example I seem to
be getting double free segfaults, so I am here soliciting advice. Does
anything stand out?

In gdb, I can't seem to catch it calling any particular destructor more
than once.

In pure c++, the class I am wrapping does not exhibit any such segfaults on
simple usage, eg
{
CMOOSApp *app = new CMOOSApp();
delete app;
}

and other classes in the library do not exhibit such segfaults when I wrap
them.

c++:

#include <boost/python.hpp>
#include <MOOS/libMOOS/MOOSLib.h>

using namespace boost::python;

BOOST_PYTHON_MODULE(MOOSCore)
{
    class_<CMOOSApp, boost::noncopyable>("MOOSApp");
}

python:

import MOOSCore

thing = MOOSCore.MOOSApp()

results:

$ python test.py
*** glibc detected *** python: double free or corruption (out):
0x0000000000f92b50 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3b8a4760e6]
/lib64/libc.so.6[0x3b8a478c13]
/usr/lib64/libboost_python.so.5(_ZN5boost6python15instance_holder10deallocateEP7_objectPv+0x15)[0x7f15ee57a0b5]
/usr/lib64/libboost_python.so.5(+0x2a394)[0x7f15ee57a394]
/usr/lib64/libpython2.6.so.1.0[0x3b9de9a715]
/usr/lib64/libpython2.6.so.1.0[0x3b9de78287]
/usr/lib64/libpython2.6.so.1.0(PyDict_SetItem+0xa7)[0x3b9de7acf7]
/usr/lib64/libpython2.6.so.1.0(_PyModule_Clear+0x16d)[0x3b9de7c66d]
/usr/lib64/libpython2.6.so.1.0(PyImport_Cleanup+0x18f)[0x3b9dee987f]
/usr/lib64/libpython2.6.so.1.0(Py_Finalize+0x11b)[0x3b9def28ab]
/usr/lib64/libpython2.6.so.1.0(Py_Main+0x596)[0x3b9deff2d6]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x3b8a41ecdd]
python[0x400649]


the class CMOOSApp is defined here:

https://oceanai.mit.edu/svn/moos-ivp-aro/releases/moos-ivp-13.5/MOOS_V10Beta_rc2/MOOSCore/Core/libMOOS/App/include/MOOS/libMOOS/App/MOOSApp.h

my complete code can be found here on the off chance someone wants to
tinker with it:

https://bitbucket.org/ariovistus/moos-python
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