#0  default_app_changed (button=0xa6c6cd8, self=0xa0be350) at cc-info-panel.c:803
        mime_types = 0x0
        pattern = 0xa7b2390
        info = 0xa68cdb8
        error = 0x0
        app_data = 0xac275464 <preferred_app_infos+36>
        i = 0
#1  0xb6dbe6b3 in g_cclosure_marshal_VOID__VOID (closure=0xa71ab58, return_value=0x0, n_param_values=1, param_values=0xbf944990, invocation_hint=0xbf94493c, marshal_data=0x0) at /build/buildd/glib2.0-2.40.0/./gobject/gmarshal.c:85
        callback = <optimized out>
        cc = 0xa71ab58
        data1 = 0xa6c6cd8
        data2 = <optimized out>
        __FUNCTION__ = "g_cclosure_marshal_VOID__VOID"
#2  0xb6dbca7e in g_closure_invoke (closure=0xa71ab58, return_value=return_value@entry=0x0, n_param_values=1, param_values=param_values@entry=0xbf944990, invocation_hint=invocation_hint@entry=0xbf94493c) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:768
        marshal = 0x804d240 <g_cclosure_marshal_VOID__VOID@plt>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0xa71ab48
        __FUNCTION__ = "g_closure_invoke"
#3  0xb6dcf029 in signal_emit_unlocked_R (node=node@entry=0xa67a700, detail=0, instance=0xa6c6cd8, emission_return=emission_return@entry=0x0, instance_and_params=0xbf944990) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3551
        tmp = <optimized out>
        handler = 0xa7108a0
        accumulator = 0x0
        emission = {next = 0xbf944c50, instance = 0xa6c6cd8, ihint = {signal_id = 355, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        handler_list = 0xa7108a0
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        signal_id = 355
        max_sequential_handler_number = 2534
        return_value_altered = 0
#4  0xb6dd6963 in g_signal_emit_valist (instance=instance@entry=0xa6c6cd8, signal_id=signal_id@entry=355, detail=detail@entry=0, var_args=var_args@entry=0xbf944acc "\200\026H\267\220\214p\n\220\264p\n\001") at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3307
        instance_and_params = 0xbf944990
        signal_return_type = <optimized out>
        param_values = 0xbf9449a4
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#5  0xb6dd6bf3 in g_signal_emit (instance=0xa6c6cd8, signal_id=355, detail=0) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363
        var_args = 0xbf944acc "\200\026H\267\220\214p\n\220\264p\n\001"
#6  0xb72c6134 in ?? ()
No symbol table info available.
#7  0x0a6c6cd8 in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)