.
Thread 2 (LWP 5924):
#0  0x00007f7c5cd1d74d in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f7c5d378d34 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0x7f7c500010c0, timeout=-1, context=0x12bba20) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:4008
        poll_func = 0x7f7c5d387830 <g_poll>
#2  g_main_context_iterate (context=0x12bba20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:3709
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = 3
        fds = 0x7f7c500010c0
#3  0x00007f7c5d37905a in g_main_loop_run (loop=0x12bb9b0) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:3908
        __FUNCTION__ = "g_main_loop_run"
#4  0x00007f7c5de9de06 in gdbus_shared_thread_func (user_data=0x12bb9f0) at /build/buildd/glib2.0-2.39.3/./gio/gdbusprivate.c:275
        data = 0x12bb9f0
#5  0x00007f7c5d39dc55 in g_thread_proxy (data=0x1297850) at /build/buildd/glib2.0-2.39.3/./glib/gthread.c:798
        thread = 0x1297850
#6  0x00007f7c5c808182 in start_thread (arg=0x7f7c55977700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f7c55977700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140171988662016, -6735852234311725135, 0, 0, 140171988662720, 140171988662016, 6664721868371791793, 6664706317733466033}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f7c5cd2ab5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (LWP 5865):
#0  g_logv (log_domain=0x7f7c5d3bc86e "GLib", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7fff2d0fdd68) at /build/buildd/glib2.0-2.39.3/./glib/gmessages.c:1046
        domain = 0x0
        data = 0x0
        depth = 0
        log_func = 0x7f7c5d37f0b0 <g_log_default_handler>
        domain_fatal_mask = <optimized out>
        masquerade_fatal = <optimized out>
        test_level = <optimized out>
        was_fatal = <optimized out>
        was_recursion = <optimized out>
        msg = 0x13cf3d0 "Source ID 21 was not found when attempting to remove it"
        msg_alloc = 0x13cf3d0 "Source ID 21 was not found when attempting to remove it"
        i = 3
#1  0x00007f7c5d37fa72 in g_log (log_domain=log_domain@entry=0x7f7c5d3bc86e "GLib", log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, format=format@entry=0x7f7c5d3c4068 "Source ID %u was not found when attempting to remove it") at /build/buildd/glib2.0-2.39.3/./glib/gmessages.c:1079
        args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fff2d0fde40, reg_save_area = 0x7fff2d0fdd80}}
#2  0x00007f7c5d377a0c in g_source_remove (tag=21) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:2211
        source = 0x0
        __FUNCTION__ = "g_source_remove"
#3  0x000000000040ad31 in queue_update (queue=0x127a150) at nd-queue.c:929
No locals.
#4  0x00007f7c5d648278 in g_closure_invoke (closure=0x13ce1c0, return_value=0x0, n_param_values=1, param_values=0x7fff2d0fe010, invocation_hint=0x7fff2d0fdfb0) at /build/buildd/glib2.0-2.39.3/./gobject/gclosure.c:777
        marshal = 0x406070 <g_cclosure_marshal_VOID__VOID@plt>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x13ce1a0
        __FUNCTION__ = "g_closure_invoke"
#5  0x00007f7c5d659c2d in signal_emit_unlocked_R (node=node@entry=0x1233d30, detail=detail@entry=0, instance=instance@entry=0x14342c0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff2d0fe010) at /build/buildd/glib2.0-2.39.3/./gobject/gsignal.c:3556
        tmp = <optimized out>
        handler = 0x7f7c50148030
        accumulator = 0x0
        emission = {next = 0x0, instance = 0x14342c0, ihint = {signal_id = 3, detail = 0, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 4}
        handler_list = 0x7f7c50147c90
        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 = 3
        max_sequential_handler_number = 224
        return_value_altered = 1
#6  0x00007f7c5d661919 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff2d0fe198) at /build/buildd/glib2.0-2.39.3/./gobject/gsignal.c:3312
        instance_and_params = 0x7fff2d0fe010
        signal_return_type = <optimized out>
        param_values = 0x7fff2d0fe028
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#7  0x00007f7c5d661bd2 in g_signal_emit (instance=instance@entry=0x14342c0, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.39.3/./gobject/gsignal.c:3368
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff2d0fe270, reg_save_area = 0x7fff2d0fe1b0}}
#8  0x00007f7c5e8e5518 in gtk_widget_dispose (object=0x14342c0) at /build/buildd/gtk+3.0-3.10.6/./gtk/gtkwidget.c:11279
        widget = 0x14342c0
        priv = 0x1434200
#9  0x00007f7c5d64e980 in g_object_run_dispose (object=0x14342c0) at /build/buildd/glib2.0-2.39.3/./gobject/gobject.c:1066
        __FUNCTION__ = "g_object_run_dispose"
#10 0x00007f7c5e8d8b31 in gtk_widget_destroy (widget=<optimized out>) at /build/buildd/gtk+3.0-3.10.6/./gtk/gtkwidget.c:4268
        __FUNCTION__ = "gtk_widget_destroy"
#11 0x000000000040844a in timeout_bubble (bubble=0x14342c0, bubble@entry=<error reading variable: value has been optimized out>) at nd-bubble.c:390
No locals.
#12 0x00007f7c5d379453 in g_timeout_dispatch (source=0x13edb60, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:4452
        timeout_source = 0x13edb60
        again = <optimized out>
#13 0x00007f7c5d378a35 in g_main_dispatch (context=0x1259e00) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:3068
        dispatch = 0x7f7c5d379440 <g_timeout_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x14342c0
        callback = 0x408420 <timeout_bubble>
        cb_funcs = 0x7f7c5d630920 <g_source_callback_funcs>
        cb_data = 0x13c01d0
        need_destroy = <optimized out>
        source = 0x13edb60
        current = 0x12a4e40
        i = 0
#14 g_main_context_dispatch (context=context@entry=0x1259e00) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:3643
No locals.
#15 0x00007f7c5d378d98 in g_main_context_iterate (context=0x1259e00, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:3714
        max_priority = 2147483647
        timeout = 5488
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 3
        fds = 0x131b780
#16 0x00007f7c5d37905a in g_main_loop_run (loop=0x131b760) at /build/buildd/glib2.0-2.39.3/./glib/gmain.c:3908
        __FUNCTION__ = "g_main_loop_run"
#17 0x00007f7c5e7b09b5 in gtk_main () at /build/buildd/gtk+3.0-3.10.6/./gtk/gtkmain.c:1158
        loop = 0x131b760
#18 0x000000000040666a in main (argc=1, argv=0x7fff2d0fe4f8) at daemon.c:391
        daemon = 0x1240280
        owner_id = 1
        __PRETTY_FUNCTION__ = "main"