#0  gdk_property_change (window=0x0, property=0x68, type=0x4, format=32, mode=GDK_PROP_MODE_REPLACE, data=0x12866b0 "\204", nelements=10) at /build/buildd/gtk+3.0-3.6.4/./gdk/gdkwindow.c:11348
  [Error: /build/buildd/gtk+3.0-3.6.4/./gdk/gdkwindow.c was not found in source tree]
#1  0x00007f9424f42e6d in _gtk_selection_request (widget=0x1382000, event=0x12b22e0) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkselection.c:2453
  [Error: /build/buildd/gtk+3.0-3.6.4/./gtk/gtkselection.c was not found in source tree]
#2  0x00007f9424ecf5ac in _gtk_marshal_BOOLEAN__BOXEDv (closure=0x12595d0, return_value=0x7fffdd707e10, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x1259600) at /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmarshalers.c:130
  [Error: /build/buildd/gtk+3.0-3.6.4/./gtk/gtkmarshalers.c was not found in source tree]
#3  0x00007f9423feaa37 in g_closure_add_marshal_guards (closure=0x7f9423fe8dd0 <g_byte_array_get_type+48>, pre_marshal_data=0xffffffff, pre_marshal_notify=0x0, post_marshal_data=<optimized out>, post_marshal_notify=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gclosure.c:395
  [Error: /build/buildd/glib2.0-2.35.8/./gobject/gclosure.c was not found in source tree]
#4  0x00007f942391e56c in thread_memory_from_self () at /build/buildd/glib2.0-2.35.8/./glib/gslice.c:500
  [Error: /build/buildd/glib2.0-2.35.8/./glib/gslice.c was not found in source tree]
#5  g_slice_free1 (mem_size=230, mem_block=0x40000002) at /build/buildd/glib2.0-2.35.8/./glib/gslice.c:1087
  [Error: /build/buildd/glib2.0-2.35.8/./glib/gslice.c was not found in source tree]
#6  0x0000000001259430 in ?? ()
#7  0x00000000012595d0 in ?? ()
#8  0x00007fffdd707e10 in ?? ()
#9  0x00007fffdd707e90 in ?? ()
#10 0x00007f9424004810 in handler_unref_R (handler=0x1382000, instance=0xe7, signal_id=3715137040) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:609
  [Error: /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c was not found in source tree]
#11 handler_match_free1_R (instance=0xe7, node=0xa) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:482
  [Error: /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c was not found in source tree]
#12 g_signal_has_handler_pending (instance=0xe7, signal_id=<optimized out>, detail=<optimized out>, may_be_blocked=<optimized out>) at /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c:2933
  [Error: /build/buildd/glib2.0-2.35.8/./gobject/gsignal.c was not found in source tree]
#13 0x00007fffdd707e30 in ?? ()
#14 0x0000000000000014 in ?? ()
#15 0x0000000001382000 in ?? ()
#16 0x0000000000000014 in ?? ()
#17 0x0000000000000000 in ?? ()