.
Thread 3 (LWP 4788):
#0  0x00007f2fa07463cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f2f9f6c4394 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (LWP 4787):
#0  0x00007f2fa07463cd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f2f9f6c4394 in ?? ()
No symbol table info available.
#2  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (LWP 4783):
#0  0x00007f2f9c8a2dcc in _wrap_gtk_widget__get_parent (self=0x2e01410, closure=<optimized out>) at gtk.c:12836
        ret = <error reading variable ret (Cannot access memory at address 0x58)>
#1  0x00000000004eba9c in getset_get.11213 (descr=0x12b9200, obj=0x2e01410, type=<optimized out>) at ../Objects/descrobject.c:146
        res = 0x3fd4f30
#2  0x000000000056587d in _PyObject_GenericGetAttrWithDict (dict=0x0, name=0x7f2fa15f4a80, obj=0x2e01410) at ../Objects/object.c:1399
        tp = 0x3fd4f30
        descr = <optimized out>
        res = 0x0
        f = 0x4eba60 <getset_get.11213>
        dictoffset = <optimized out>
        dictptr = <optimized out>
#3  PyObject_GenericGetAttr (name=<optimized out>, obj=0x2e01410) at ../Objects/object.c:1461
No locals.
#4  PyObject_GetAttr (v=0x2e01410, name=<optimized out>) at ../Objects/object.c:1196
        tp = <optimized out>
#5  0x00000000004fdf61 in PyEval_EvalFrameEx (f=f@entry=0x5f38c80, throwflag=throwflag@entry=0) at ../Python/ceval.c:2256
        stack_pointer = <optimized out>
        next_instr = 0x401c6f7 "rF"
        opcode = <optimized out>
        oparg = 4
        why = WHY_NOT
        err = <optimized out>
        x = <optimized out>
        v = 0x2e01410
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x5f38df8
        freevars = <optimized out>
        retval = <optimized out>
        tstate = <optimized out>
        co = <optimized out>
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = <optimized out>
        names = <optimized out>
        consts = <optimized out>
        enter = 0x7f2fa172dde0
        exit = 0x7f2fa172de10
#6  0x00000000004fea32 in fast_function (nk=<optimized out>, na=<optimized out>, n=1, pp_stack=0x7fffceb1f3f0, func=0x3a27de8) at ../Python/ceval.c:4107
        retval = 0x0
        fastlocals = 0x5f38df8
        i = <optimized out>
        f = 0x5f38c80
        tstate = 0xeed0a0
        stack = <optimized out>
        co = <optimized out>
        nd = 0
        globals = <optimized out>
        argdefs = <optimized out>
        d = 0x0
#7  call_function (oparg=<optimized out>, pp_stack=0x7fffceb1f3f0) at ../Python/ceval.c:4042
        func = 0x3a27de8
        w = <optimized out>
        na = <optimized out>
        nk = <optimized out>
        n = 1
        pfunc = 0x63c4ba8
        x = <optimized out>
#8  PyEval_EvalFrameEx (f=f@entry=0x63c4a20, throwflag=throwflag@entry=0) at ../Python/ceval.c:2666
        sp = 0x63c4bb0
        stack_pointer = <optimized out>
        next_instr = 0x40afd7d "\001d"
        opcode = <optimized out>
        oparg = <optimized out>
        why = WHY_NOT
        err = <optimized out>
        x = <optimized out>
        v = <optimized out>
        w = <optimized out>
        u = <optimized out>
        t = <optimized out>
        stream = 0x0
        fastlocals = 0x63c4b98
        freevars = <optimized out>
        retval = <optimized out>
        tstate = <optimized out>
        co = <optimized out>
        instr_ub = -1
        instr_lb = 0
        instr_prev = -1
        first_instr = <optimized out>
        names = <optimized out>
        consts = <optimized out>
        enter = 0x7f2fa172dde0
        exit = 0x7f2fa172de10
#9  0x000000000052c47a in PyEval_EvalCodeEx (closure=<optimized out>, defcount=<optimized out>, defs=0x0, kwcount=<optimized out>, kws=<optimized out>, argcount=104614432, args=<optimized out>, locals=0x0, globals=<optimized out>, co=<optimized out>) at ../Python/ceval.c:3253
        retval = 0x0
        fastlocals = <optimized out>
        freevars = <optimized out>
        u = <optimized out>
        f = <optimized out>
        tstate = <optimized out>
        x = <optimized out>
#10 function_call (func=func@entry=0x3a27e60, arg=arg@entry=0x31c9b00, kw=kw@entry=0x0) at ../Objects/funcobject.c:526
        argdefs = <optimized out>
        kwtuple = <optimized out>
        d = 0x0
        k = <optimized out>
        nk = <optimized out>
        nd = <optimized out>
#11 0x00000000004e20a4 in PyObject_Call (kw=0x0, arg=0x31c9b00, func=0x3a27e60) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x52c190 <function_call>
#12 instancemethod_call.8798 (func=0x3a27e60, func@entry=0x2e01e10, arg=0x31c9b00, arg@entry=0x2e1cd90, kw=kw@entry=0x0) at ../Objects/classobject.c:2602
        self = <optimized out>
        klass = <optimized out>
#13 0x00000000004ce259 in PyObject_Call (kw=0x0, arg=0x2e1cd90, func=0x2e01e10) at ../Objects/abstract.c:2529
        result = <optimized out>
        call = 0x4e1f50 <instancemethod_call.8798>
#14 PyEval_CallObjectWithKeywords (kw=0x0, arg=0x2e1cd90, func=0x2e01e10) at ../Python/ceval.c:3890
No locals.
#15 PyObject_CallObject (o=0x2e01e10, a=a@entry=0x2e1cd90) at ../Objects/abstract.c:2517
No locals.
#16 0x00007f2f9d6dd0f9 in pyg_closure_marshal (closure=0x6220360, return_value=0x0, n_param_values=1, param_values=0x7fffceb1f980, invocation_hint=<optimized out>, marshal_data=<optimized out>) at /build/buildd/pygobject-2-2.28.6/gobject/pygtype.c:1216
        state = PyGILState_UNLOCKED
        pc = 0x6220360
        params = 0x2e1cd90
        ret = <optimized out>
        i = <optimized out>
        __PRETTY_FUNCTION__ = "pyg_closure_marshal"
#17 0x00007f2f9edca1c8 in ?? ()
No symbol table info available.
#18 0x0000000000000000 in ?? ()
No symbol table info available.