708	core/workspace.c: No such file or directory.
(gdb) bt
#0  meta_workspace_invalidate_work_area (workspace=0x24779c0) at core/workspace.c:708
#1  0x00007ffff71d8086 in meta_workspace_add_window (workspace=workspace@entry=0x24779c0, window=0xc02e60) at core/workspace.c:326
#2  0x00007ffff71d8143 in meta_workspace_new (screen=screen@entry=0x68d5a0) at core/workspace.c:187
#3  0x00007ffff71c7ea8 in meta_screen_append_new_workspace (screen=0x68d5a0, activate=0, timestamp=0) at core/screen.c:1151
#4  0x00007ffff526e1c8 in g_closure_invoke (closure=0xc23a80, return_value=0x0, n_param_values=2, param_values=0x7fffffffd710, invocation_hint=0x7fffffffd6b0) at /build/buildd/glib2.0-2.42.0/./gobject/gclosure.c:768
#5  0x00007ffff527f3cd in signal_emit_unlocked_R (node=node@entry=0xb4b230, detail=detail@entry=0, instance=instance@entry=0xa31600, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fffffffd710)
    at /build/buildd/glib2.0-2.42.0/./gobject/gsignal.c:3553
#6  0x00007ffff5287098 in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fffffffd8a8) at /build/buildd/glib2.0-2.42.0/./gobject/gsignal.c:3309
#7  0x00007ffff5287352 in g_signal_emit (instance=instance@entry=0xa31600, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.42.0/./gobject/gsignal.c:3365
#8  0x00007ffff71d809b in meta_workspace_add_window (workspace=0xa31600, window=0xc5d380) at core/workspace.c:329
#9  0x00007ffff71cf1a0 in set_workspace_state (window=0xc5d380, on_all_workspaces=0, workspace=0xa31600) at core/window.c:4342
#10 0x00007ffff71d21e9 in _meta_window_shared_new (display=display@entry=0xb34720, screen=screen@entry=0x68d5a0, client_type=client_type@entry=META_WINDOW_CLIENT_TYPE_X11, surface=surface@entry=0x0, xwindow=xwindow@entry=10485768,
    existing_wm_state=existing_wm_state@entry=0, effect=effect@entry=META_COMP_EFFECT_CREATE, attrs=attrs@entry=0x7fffffffdac0) at core/window.c:1127
#11 0x00007ffff71fa6ab in meta_window_x11_new (display=display@entry=0xb34720, xwindow=10485768, must_be_viewable=must_be_viewable@entry=0, effect=effect@entry=META_COMP_EFFECT_CREATE) at x11/window-x11.c:2956
#12 0x00007ffff71f03e3 in handle_other_xevent (display=display@entry=0xb34720, event=event@entry=0x7fffffffde60) at x11/events.c:1325
#13 0x00007ffff71f105b in meta_display_handle_xevent (event=0x7fffffffde60, display=0xb34720) at x11/events.c:1733
#14 xevent_filter (xevent=0x7fffffffde60, event=<optimized out>, data=0xb34720) at x11/events.c:1772
#15 0x00007ffff5b7dac1 in gdk_event_apply_filters (xevent=xevent@entry=0x7fffffffde60, event=event@entry=0xc7a710, window=window@entry=0x0) at /build/buildd/gtk+3.0-3.14.2/./gdk/x11/gdkeventsource.c:81
#16 0x00007ffff5b7dd8e in gdk_event_source_translate_event (xevent=0x7fffffffde60, event_source=0xa6db70) at /build/buildd/gtk+3.0-3.14.2/./gdk/x11/gdkeventsource.c:195
#17 _gdk_x11_display_queue_events (display=0xa5e070) at /build/buildd/gtk+3.0-3.14.2/./gdk/x11/gdkeventsource.c:338
#18 0x00007ffff5b555c9 in gdk_display_get_event (display=display@entry=0xa5e070) at /build/buildd/gtk+3.0-3.14.2/./gdk/gdkdisplay.c:321
#19 0x00007ffff5b7db42 in gdk_event_source_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/gtk+3.0-3.14.2/./gdk/x11/gdkeventsource.c:360
#20 0x00007ffff4f9abd4 in g_main_dispatch (context=0x674370) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3111
#21 g_main_context_dispatch (context=context@entry=0x674370) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3710
#22 0x00007ffff4f9ae18 in g_main_context_iterate (context=0x674370, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3781
#23 0x00007ffff4f9b0da in g_main_loop_run (loop=0x67a3d0) at /build/buildd/glib2.0-2.42.0/./glib/gmain.c:3975
#24 0x00007ffff71c1248 in meta_run () at core/main.c:473
#25 0x0000000000419d74 in gala_main (args=0x7fffffffe1f8, args_length1=1) at /home/tom/Code/vala/gala/src/Main.vala:61
#26 0x00007ffff4782ec5 in __libc_start_main (main=0x414460 <main>, argc=4, argv=0x7fffffffe1f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe1e8) at libc-start.c:287
#27 0x0000000000414495 in _start ()
(gdb) locals
Undefined command: "locals".  Try "help".
(gdb) info locals
windows = <optimized out>
l = <optimized out>
i = 0
workspace = 0x24779c0
(gdb) print workspace
$1 = (MetaWorkspace *) 0x24779c0
(gdb) print workspace->monitor_region
$2 = (GList **) 0x0