[C++-sig] segmentation fault in Boost.Python/Python C api

[Umang Jaipuria]

My application uses Boost.Python 1.33.1 and there was a segfault with a core 
dump. The stack trace follows.
I'll grateful if anyone can point me in the right direction to figuring out 
what the problem is.

Thanks,
Umang Jaipuria

#0  0x00c6d002 in free () from /lib/tls/libc.so.6
#1  0x00da92de in PyObject_Free (p=0x5c30) at Objects/obmalloc.c:774
#2  0x00da8d5d in PyMem_Free (p=0x0) at Objects/object.c:2111
#3  0x0043b3a9 in boost::python::instance_holder::deallocate () from 
/usr/local/lib/libboost_python-gcc-mt-1_33_1.so.1.33.1
#4  0x0043b412 in boost::python::instance_holder::deallocate () from 
/usr/local/lib/libboost_python-gcc-mt-1_33_1.so.1.33.1
#5  0x00db44ff in subtype_dealloc (self=0xb746ff2c) at 
Objects/typeobject.c:703
#6  0x00db25d1 in tupledealloc (op=0xb74659bc) at Objects/tupleobject.c:145
#7  0x00ddd6a0 in eval_frame (f=0xa37737c) at Python/ceval.c:3652
#8  0x00dde27b in PyEval_EvalCodeEx (co=0xb745f420, globals=0x4, locals=0x0, 
args=0x0, argcount=2, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0)
    at Python/ceval.c:2669
#9  0x00d94458 in function_call (func=0xb7466294, arg=0xb7470eec, kw=0x0) at 
Objects/funcobject.c:504
#10 0x00d7c0d7 in PyObject_Call (func=0x1, arg=0x0, kw=0x0) at 
Objects/abstract.c:1755
#11 0x00dd7818 in PyEval_CallObjectWithKeywords (func=0x0, arg=0xb7470eec, 
kw=0x0) at Python/ceval.c:3352
#12 0x00e004a9 in PyEval_CallFunction (obj=0x0, format=0x0) at 
Python/modsupport.c:477
#13 0x0114f9bc in boost::python::call<myapp::action, 
boost::reference_wrapper<myapp::context_collection>, 
boost::reference_wrapper<myapp::rule* const> > (callable=0x0, a0=@0x0, 
a1=@0x0) at handle.hpp:63