Comment 2 for bug 859095

StacktraceTop:
 __GI___assert_fail (assertion=0x585e28 "status == CAIRO_STATUS_SUCCESS", file=0x588060 "/build/buildd/cairo-1.10.2/src/cairo-surface.c", line=1287, function=0x588540 "cairo_surface_set_device_offset") at assert.c:81
 INT_cairo_surface_set_device_offset (surface=0xa7754e0, x_offset=535, y_offset=418) at /build/buildd/cairo-1.10.2/src/cairo-surface.c:1287
 IA__gdk_window_begin_paint_region (region=0xa0f4c60, window=0x9d9bad0) at /build/buildd/gtk+2.0-2.24.6/gdk/gdkwindow.c:3009
 IA__gdk_window_begin_paint_region (window=0x9d9bad0, region=0xa0f4c60) at /build/buildd/gtk+2.0-2.24.6/gdk/gdkwindow.c:2939
 IA__gtk_main_do_event (event=0xbfb573f8) at /build/buildd/gtk+2.0-2.24.6/gtk/gtkmain.c:1611