StacktraceTop: INT_cairo_pattern_reference (pattern=0x1) at /build/buildd/cairo-1.10.2/src/cairo-pattern.c:761 gdk_window_set_background_pattern (pattern=<optimized out>, window=<optimized out>) at /build/buildd/gtk+3.0-3.2.0/./gdk/gdkwindow.c:6538 gdk_window_set_background_pattern (window=0x7f6950b7ad80, pattern=0x1) at /build/buildd/gtk+3.0-3.2.0/./gdk/gdkwindow.c:6529 gtk_style_context_set_background (context=0x47670c0, window=0x7f6950b7ad80) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkstylecontext.c:3207 gtk_widget_real_style_updated (widget=0x489e210) at /build/buildd/gtk+3.0-3.2.0/./gtk/gtkwidget.c:6545
StacktraceTop: pattern_ reference (pattern=0x1) at /build/ buildd/ cairo-1. 10.2/src/ cairo-pattern. c:761 set_background_ pattern (pattern=<optimized out>, window=<optimized out>) at /build/ buildd/ gtk+3.0- 3.2.0/. /gdk/gdkwindow. c:6538 set_background_ pattern (window= 0x7f6950b7ad80, pattern=0x1) at /build/ buildd/ gtk+3.0- 3.2.0/. /gdk/gdkwindow. c:6529 context_ set_background (context=0x47670c0, window= 0x7f6950b7ad80) at /build/ buildd/ gtk+3.0- 3.2.0/. /gtk/gtkstyleco ntext.c: 3207 real_style_ updated (widget=0x489e210) at /build/ buildd/ gtk+3.0- 3.2.0/. /gtk/gtkwidget. c:6545
INT_cairo_
gdk_window_
gdk_window_
gtk_style_
gtk_widget_