.
Thread 2 (process 2367):
#0  0x00007f8295d9d4b3 in *__GI___poll (fds=<value optimized out>, 
    nfds=<value optimized out>, timeout=<value optimized out>)
    at ../sysdeps/unix/sysv/linux/poll.c:87
	resultvar = 18446744073709551100
	oldtype = 0
	result = <value optimized out>
#1  0x000000000072a700 in ?? ()
No symbol table info available.
#2  0x00000000ffffffff in ?? ()
No symbol table info available.
#3  0x0000000000000001 in ?? ()
No symbol table info available.
#4  0x000000000072a700 in ?? ()
No symbol table info available.
#5  0x0000000000000001 in ?? ()
No symbol table info available.
#6  0x00007f82962ae1a0 in g_main_context_iterate (context=0x72a350, 
    block=<value optimized out>, dispatch=1)
    at /build/buildd/glib2.0-2.27.5/glib/gmain.c:4319
	max_priority = 2147483647
	timeout = -1
	some_ready = <value optimized out>
	nfds = 1
	allocated_nfds = <value optimized out>
	fds = (GPollFD *) 0x72a700
#7  0x00007f82953fc000 in ?? ()
No symbol table info available.
#8  0x00007f82965547a8 in test_run_name () from /lib/libglib-2.0.so.0
No symbol table info available.
#9  0x0000000196057e40 in ?? ()
No symbol table info available.
#10 0x00007f82965547e0 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#11 0x000000000072a43c in ?? ()
No symbol table info available.
#12 0x7fffffffffffffff in ?? ()
No symbol table info available.
#13 0x0000000000000003 in ?? ()
No symbol table info available.
#14 0x000000000072a430 in ?? ()
No symbol table info available.
#15 0x00007f82960563d0 in ?? () at pthread_mutex_lock.c:297
   from /lib/libpthread.so.0
No symbol table info available.
#16 0x00007f8296554ec0 in ?? () from /lib/libglib-2.0.so.0
No symbol table info available.
#17 0x000000000072a43c in ?? ()
No symbol table info available.
#18 0x00007f82960563d0 in ?? () at pthread_mutex_lock.c:297
   from /lib/libpthread.so.0
No symbol table info available.
#19 0x0000000000000003 in ?? ()
No symbol table info available.
#20 0x00007f82962aea7a in g_main_loop_run (loop=0x72a700)
    at /build/buildd/glib2.0-2.27.5/glib/gmain.c:4319
	__PRETTY_FUNCTION__ = "g_main_loop_run"
#21 0x00007f82954b96f4 in gdbus_shared_thread_func (
    data=<value optimized out>)
    at /build/buildd/glib2.0-2.27.5/gio/gdbusprivate.c:471
No locals.
#22 0x00007f82962d55c4 in g_thread_create_proxy (data=0x72a450)
    at /build/buildd/glib2.0-2.27.5/glib/gthread.c:1042
	thread = (GRealThread *) 0x72a450
	__PRETTY_FUNCTION__ = "g_thread_create_proxy"
#23 0x00007f8296053d8c in start_thread (arg=0x7f828b4e1700)
    at allocatestack.c:304
	pd = (struct pthread *) 0x7f828b4e1700
	now = <value optimized out>
	unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140198659626752, 
        3285518921358696176, 140733286134160, 140198659627456, 0, 3, 
        -3270294403187941648, -3270266408091722000}, mask_was_saved = 0}}, 
  priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, 
      canceltype = 0}}}
	not_first_call = 0
	robust = <value optimized out>
	sp = <value optimized out>
	freesize = <value optimized out>
	__PRETTY_FUNCTION__ = "start_thread"
#24 0x00007f8295daa61d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#25 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (process 2362):
#0  0x00007f8297563037 in IA__gdk_x11_drawable_get_xid (drawable=0x1)
    at /build/buildd/gtk+2.0-2.23.3/gdk/x11/gdkdrawable-x11.c:868
	__inst = (GTypeInstance *) 0x1
	__t = 6830912
	__r = <value optimized out>
	impl = <value optimized out>
#1  0x0000000000418f03 in defaults_get_top_corner (self=0x6cb000, 
    x=0x7fff05873158, y=0x7fff0587315c) at defaults.c:2368
	rect = {x = 7569536, y = 0, width = 4325416, height = 0}
	panel_rect = {x = 0, y = 0, width = 0, height = 0}
	screen = (GdkScreen *) 0x685c70
	active_window = <value optimized out>
	panel_window = <value optimized out>
	mx = <value optimized out>
	my = <value optimized out>
	monitor = <value optimized out>
	panel_monitor = <value optimized out>
	aw_monitor = <value optimized out>
	has_panel_window = 7649472
	__PRETTY_FUNCTION__ = "defaults_get_top_corner"
#2  0x000000000041e692 in stack_layout (self=0x6f2990) at display.c:316
	bubble = (Bubble *) 0x738080
	y = 0
	x = 0
	__PRETTY_FUNCTION__ = "stack_layout"
#3  0x000000000041f206 in stack_notify_handler (self=0x6f2990, 
    app_name=<value optimized out>, id=<value optimized out>, 
    icon=0x7360d0 "notification-network-wireless-full", 
    summary=<value optimized out>, body=0x0, actions=0x7362a0, 
    hints=0x728140, timeout=-1, context=0x736560) at stack.c:776
	bubble = (Bubble *) 0x738080
	app_bubble = (Bubble *) 0x0
	data = <value optimized out>
	pixbuf = <value optimized out>
	new_bubble = 1
	turn_into_dialog = <value optimized out>
#4  0x000000000041dcc6 in dbus_glib_marshal_stack_VOID__STRING_UINT_STRING_STRING_STRING_BOXED_BOXED_INT_POINTER (closure=0x7fff05873360, 
    return_value=<value optimized out>, n_param_values=<value optimized out>, 
    param_values=0x736f10, invocation_hint=<value optimized out>, 
    marshal_data=0x41ed40) at stack-glue.h:102
	data1 = (gpointer) 0x6f2990
	data2 = <value optimized out>
	__PRETTY_FUNCTION__ = "dbus_glib_marshal_stack_VOID__STRING_UINT_STRING_STRING_STRING_BOXED_BOXED_INT_POINTER"
#5  0x00007f82982e0fef in dbus_set_g_error ()
   from /usr/lib/libdbus-glib-1.so.2
No symbol table info available.
#6  0x0000000100000000 in ?? ()
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.