#0  g_logv (log_domain=0x7fbc796856ce "Gdk", log_level=G_LOG_LEVEL_ERROR, format=<optimized out>, args=args@entry=0x7ffdeab444a0) at /build/buildd/glib2.0-2.44.1/./glib/gmessages.c:1046
  [Error: gmessages.c was not found in source tree]
#1  0x00007fbc7737ff3f in g_log (log_domain=log_domain@entry=0x7fbc796856ce "Gdk", log_level=log_level@entry=G_LOG_LEVEL_ERROR, format=format@entry=0x7fbc796a173f "%s") at /build/buildd/glib2.0-2.44.1/./glib/gmessages.c:1079
  [Error: gmessages.c was not found in source tree]
#2  0x00007fbc796533db in _gdk_x11_display_error_event (display=display@entry=0x1907000, error=error@entry=0x7ffdeab44650) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/x11/gdkdisplay-x11.c:2580
  [Error: gdkdisplay-x11.c was not found in source tree]
#3  0x00007fbc7965bdd1 in gdk_x_error (xdisplay=0x18f3cf0, error=0x7ffdeab44650) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/x11/gdkmain-x11.c:302
  [Error: gdkmain-x11.c was not found in source tree]
#4  0x00007fbc76a087ed in _XError (dpy=dpy@entry=0x18f3cf0, rep=rep@entry=0x21439b0) at ../../src/XlibInt.c:1463
  [Error: XlibInt.c was not found in source tree]
#5  0x00007fbc76a057e7 in handle_error (dpy=0x18f3cf0, err=0x21439b0, in_XReply=<optimized out>) at ../../src/xcb_io.c:213
  [Error: xcb_io.c was not found in source tree]
#6  0x00007fbc76a05895 in handle_response (dpy=dpy@entry=0x18f3cf0, response=0x21439b0, in_XReply=in_XReply@entry=0) at ../../src/xcb_io.c:325
  [Error: xcb_io.c was not found in source tree]
#7  0x00007fbc76a061d5 in _XEventsQueued (dpy=0x18f3cf0, mode=<optimized out>) at ../../src/xcb_io.c:364
  [Error: xcb_io.c was not found in source tree]
#8  0x00007fbc76a08f25 in _XGetRequest (dpy=dpy@entry=0x18f3cf0, type=type@entry=12 '\f', len=len@entry=12) at ../../src/XlibInt.c:1735
  [Error: XlibInt.c was not found in source tree]
#9  0x00007fbc77a616da in XFixesCopyRegion (dpy=0x18f3cf0, dst=17110851, src=17110861) at ../../src/Region.c:174
  [Error: Region.c was not found in source tree]
#10 0x00000000004150bd in xrender_set_active_window (compositor=<optimized out>, screen=0x1a25410, window=<optimized out>) at compositor/compositor-xrender.c:2985
  2980:         }
  2981: 
  2982:       if (new_focus->extents)
  2983:         {
  2984:           damage = XFixesCreateRegion (xdisplay, NULL, 0);
  2985:           XFixesCopyRegion (xdisplay, damage, new_focus->extents);
  2986:           XFixesDestroyRegion (xdisplay, new_focus->extents);
  2987:         }
  2988:       else
  2989:         damage = None;
  2990: 
#11 0x0000000000440efb in meta_window_notify_focus (window=0x1e3d600, event=0x7ffdeab44ac0) at core/window.c:5502
  5497:         {
  5498:           meta_topic (META_DEBUG_FOCUS,
  5499:                       "* Focus --> %s\n", window->desc);
  5500:           window->display->focus_window = window;
  5501:           window->has_focus = TRUE;
  5502:           meta_compositor_set_active_window (window->display->compositor,
  5503:                                              window->screen, window);
  5504: 
  5505:           /* Move to the front of the focusing workspace's MRU list.
  5506:            * We should only be "removing" it from the MRU list if it's
  5507:            * not already there.  Note that it's possible that we might
#12 0x0000000000421114 in event_callback (event=0x7ffdeab44ac0, data=0x1a0c800) at core/display.c:2013
  2008:           /* Unfocus on UnmapNotify, do this after the possible
  2009:            * window_free above so that window_free can see if window->has_focus
  2010:            * and move focus to another window
  2011:            */
  2012:           if (window)
  2013:             meta_window_notify_focus (window, event);
  2014:         }
  2015:       break;
  2016:     case MapNotify:
  2017:       break;
  2018:     case MapRequest:
#13 0x0000000000460fe5 in filter_func (xevent=0x7ffdeab44ac0, event=<optimized out>, data=<optimized out>) at ui/ui.c:229
  224:              GdkEvent *event,
  225:              gpointer data)
  226: {
  227:   g_return_val_if_fail (ef != NULL, GDK_FILTER_CONTINUE);
  228: 
  229:   if ((* ef->func) (xevent, ef->data) ||
  230:       maybe_redirect_mouse_event (xevent))
  231:     return GDK_FILTER_REMOVE;
  232:   else
  233:     return GDK_FILTER_CONTINUE;
  234: }
#14 0x00007fbc79658c71 in gdk_event_apply_filters (xevent=xevent@entry=0x7ffdeab44ac0, event=event@entry=0x1e01340, window=window@entry=0x0) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/x11/gdkeventsource.c:81
  [Error: gdkeventsource.c was not found in source tree]
#15 0x00007fbc79658f31 in gdk_event_source_translate_event (xevent=0x7ffdeab44ac0, event_source=0x18e1470) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/x11/gdkeventsource.c:195
  [Error: gdkeventsource.c was not found in source tree]
#16 _gdk_x11_display_queue_events (display=0x1907000) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/x11/gdkeventsource.c:338
  [Error: gdkeventsource.c was not found in source tree]
#17 0x00007fbc7962f809 in gdk_display_get_event (display=display@entry=0x1907000) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/gdkdisplay.c:336
  [Error: gdkdisplay.c was not found in source tree]
#18 0x00007fbc79658cf2 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/gtk+3.0-fHaswp/gtk+3.0-3.14.15/./gdk/x11/gdkeventsource.c:360
  [Error: gdkeventsource.c was not found in source tree]
#19 0x00007fbc77378c3d in g_main_dispatch (context=0x18b4e90) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3122
  [Error: gmain.c was not found in source tree]
#20 g_main_context_dispatch (context=context@entry=0x18b4e90) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3737
  [Error: gmain.c was not found in source tree]
#21 0x00007fbc77378f20 in g_main_context_iterate (context=0x18b4e90, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:3808
  [Error: gmain.c was not found in source tree]
#22 0x00007fbc77379242 in g_main_loop_run (loop=0x18c6220) at /build/buildd/glib2.0-2.44.1/./glib/gmain.c:4002
  [Error: gmain.c was not found in source tree]
#23 0x00000000004104d9 in main (argc=1, argv=0x7ffdeab45378) at core/main.c:577
  572:     meta_prefs_set_force_fullscreen (FALSE);
  573: 
  574:   if (!meta_display_open ())
  575:     meta_exit (META_EXIT_ERROR);
  576: 
  577:   g_main_loop_run (meta_main_loop);
  578: 
  579:   meta_finalize ();
  580: 
  581:   if (meta_restart_after_quit)
  582:     {