Call to PyEval_EvalCodeEx crashes in PyFrame_New with abort

[grbgooglefan]

I've emabedded Python(2.6) in my C++ application and using on Solaris
5.10.
When the application calls Py_Eval, it causes an abort & application
core dumps. But this is at random times & no pattern for this. Crash
is as below:

Can you please help to know, what can cause this abort in PyFrame_New?

 fd7c642c _lwp_kill (6, 0, fd7f3018, fd7a8df8, ffffffff, 6) + 8
 fd741198 abort    (fe523660, 1, 35a7c4, ad260, fd7f12d8, 0) + 110
 fe4d869c PyFrame_New (9d1668, 4621140, 9ecc00, fffffffd, 4621150, 4)
+ 328
 fe48b654 PyEval_EvalCodeEx (9e07a0, 9ecc00, 0, 4815dac, 3, fe543800)
+ 2c
 fe4d9f5c function_call (9e0770, 4815da0, 0, 0, 4815d90, 0) + 1ac
 fe4c9054 PyObject_Call (9e0770, 4815da0, 0, fe54f784, fffffffe, 2) +
1c
 fe48d2dc PyEval_CallObjectWithKeywords (9e0770, 4815da0, 0, 0,
4815da0, 9e0770) + f0
 fe4aebf0 Py_Eval  (9e0770, 4815da0, 0, 3, 3c, fe5395a4) + 94