$> gdb slpy25 
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This GDB was configured as "x86_64-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: /home/r64y/e1/path64/bin/slpy25 
[Thread debugging using libthread_db enabled]
[New Thread 47359613830896 (LWP 19447)]
Python 2.5 Stackless 3.1b3 060516 (release25-maint:54629, Mar 31 2007, 21:57:34) 
[GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sip
>>> sip.wrapper

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47359613830896 (LWP 19447)]
0x00002b12c4c7cf30 in strchr () from /lib/libc.so.6
(gdb) thread apply all bt full

Thread 1 (Thread 47359613830896 (LWP 19447)):
#0  0x00002b12c4c7cf30 in strchr () from /lib/libc.so.6
No symbol table info available.
#1  0x00002b12c4c7da2e in strrchr () from /lib/libc.so.6
No symbol table info available.
#2  0x0000000000455181 in type_module (type=<value optimized out>, 
    context=<value optimized out>) at Objects/typeobject.c:99
        mod = <value optimized out>
#3  0x0000000000458bb4 in type_repr (type=0x0) at Objects/typeobject.c:381
        mod = <value optimized out>
        name = <value optimized out>
        rtn = <value optimized out>
        kind = <value optimized out>
#4  0x00000000004478da in PyObject_Repr (v=0x2b12c581d800)
    at Objects/object.c:361
        res = <value optimized out>
#5  0x0000000000448385 in internal_print (op=0x2b12c581d800, fp=0x2b12c4f52760, 
    flags=0, nesting=0) at Objects/object.c:294
        s = <value optimized out>
        ret = <value optimized out>
#6  0x000000000042e03e in PyFile_WriteObject (v=0x2b12c581d800, 
    f=<value optimized out>, flags=0) at Objects/fileobject.c:2176
        fp = (FILE *) 0x2b12c4f52760
---Type <return> to continue, or q <return> to quit---
        enc = <value optimized out>
        result = <value optimized out>
        writer = <value optimized out>
        value = (PyObject *) 0x2b12c581d800
        args = <value optimized out>
        result = <value optimized out>
#7  0x00000000004b8e59 in sys_displayhook (self=<value optimized out>, 
    o=0x2b12c581d800) at Python/sysmodule.c:114
        outf = (PyObject *) 0x2b12c4173198
        builtins = (PyObject *) 0x2b12c4170440
#8  0x0000000000419648 in PyObject_Call (func=0x0, arg=0x2e, kw=0x2e)
    at Objects/abstract.c:1861
        result = <value optimized out>
        stackless = 0
        call = (ternaryfunc) 0xfefefefefefefeff
#9  0x000000000047ebbf in PyEval_CallObjectWithKeywords (func=0x2b12c4178908, 
    arg=0x2b12c425b7d0, kw=0x0) at Python/ceval.c:3747
        stackless = 0
        result = <value optimized out>
#10 0x0000000000484f6a in PyEval_EvalFrame_value (f=0x81dcd0, 
    throwflag=<value optimized out>, retval=<value optimized out>)
    at Python/ceval.c:1728
        fp = (FILE *) 0x0
        name = <value optimized out>
---Type <return> to continue, or q <return> to quit---
        cf = {cf_flags = 7613184}
        stack_pointer = <value optimized out>
        next_instr = (unsigned char *) 0x2b12c426252b "d"
        opcode = <value optimized out>
        oparg = 0
        why = WHY_RETURN
        err = 0
        x = <value optimized out>
        v = (PyObject *) 0x2b12c581d800
        w = <value optimized out>
        u = <value optimized out>
        t = <value optimized out>
        stream = <value optimized out>
        fastlocals = (PyObject **) 0x81de50
        freevars = (PyObject **) 0x81de50
        tstate = (PyThreadState *) 0x786090
        co = (PyCodeObject *) 0x2b12c41db828
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = <value optimized out>
        names = (PyObject *) 0x2b12c4263098
        consts = (PyObject *) 0x2b12c425b110
#11 0x0000000000487a1f in PyEval_EvalFrameEx_slp (f=0x0, throwflag=0, 
---Type <return> to continue, or q <return> to quit---
    retval=0x742b00) at Python/ceval.c:782
        tstate = (PyThreadState *) 0x786090
#12 0x0000000000487b50 in slp_frame_dispatch_top (retval=0x0)
    at Stackless/core/stacklesseval.c:671
        ts = (PyThreadState *) 0x786090
        f = (PyFrameObject *) 0x0
#13 0x000000000048a7d8 in slp_run_tasklet ()
    at Stackless/module/scheduling.c:1155
        ts = (PyThreadState *) 0x786090
        retval = (PyObject *) 0x742b00
#14 0x00000000004888fe in slp_eval_frame (f=0x81dcd0)
    at Stackless/core/stacklesseval.c:281
        ts = (PyThreadState *) 0x786090
        fprev = (PyFrameObject *) 0x0
#15 0x0000000000488996 in climb_stack_and_eval_frame (f=0x0)
    at Stackless/core/stacklesseval.c:248
        probe = 47359599404136
#16 0x000000000048890b in slp_eval_frame (f=0x81dcd0)
    at Stackless/core/stacklesseval.c:276
        ts = (PyThreadState *) 0x786090
        fprev = (PyFrameObject *) 0x0
#17 0x000000000047f622 in PyEval_EvalCode (co=0x0, globals=0x2e, locals=0x2e)
    at Python/ceval.c:496
No locals.
---Type <return> to continue, or q <return> to quit---
#18 0x00000000004b372f in PyRun_InteractiveOneFlags (fp=0x2b12c4f52680, 
    filename=0x4f2ed6 "<stdin>", flags=0x7fffe6961df0)
    at Python/pythonrun.c:1295
        m = <value optimized out>
        d = (PyObject *) 0x7b2340
        v = <value optimized out>
        w = <value optimized out>
        mod = (mod_ty) 0x817160
        arena = (PyArena *) 0x7f5310
        ps1 = 0x2b12c42602c4 ">>> "
        ps2 = <value optimized out>
        errcode = 0
#19 0x00000000004b3934 in PyRun_InteractiveLoopFlags (fp=0x2b12c4f52680, 
    filename=0x4f2ed6 "<stdin>", flags=0x7fffe6961df0) at Python/pythonrun.c:731
        v = (PyObject *) 0x2b12c4260360
        ret = <value optimized out>
        local_flags = {cf_flags = 65302}
#20 0x00000000004b3a3a in PyRun_AnyFileExFlags (fp=0x2b12c4f52680, 
    filename=0x4f2ed6 "<stdin>", closeit=0, flags=0x7fffe6961df0)
    at Python/pythonrun.c:700
        err = <value optimized out>
#21 0x00000000004160e0 in Py_Main (argc=<value optimized out>, argv=0x0)
    at Modules/main.c:496
        v = <value optimized out>
---Type <return> to continue, or q <return> to quit---
        c = <value optimized out>
        sts = 0
        command = 0x0
        filename = 0x2e <Address 0x2e out of bounds>
        module = 0x0
        fp = (FILE *) 0x2b12c4f52680
        p = <value optimized out>
        inspect = 0
        unbuffered = <value optimized out>
        skipfirstline = 0
        stdin_is_interactive = 1
        help = <value optimized out>
        version = <value optimized out>
        saw_inspect_flag = 0
        saw_unbuffered_flag = 0
        cf = {cf_flags = 0}
#22 0x00002b12c4c248e4 in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#23 0x00000000004156b9 in _start ()
No symbol table info available.
(gdb) quit