StacktraceTop: gdk_arg_class_cb (key=<optimized out>, value=<optimized out>, user_data=<optimized out>, error=<optimized out>) at /build/buildd/gtk+2.0-2.24.4/gdk/gdk.c:139 _cairo_user_data_array_set_data (array=0x246eb20, key=0x0, user_data=0x0, destroy=<optimized out>) at /build/buildd/cairo-1.10.2/src/cairo-array.c:487 ?? ()
StacktraceTop: <optimized out>, error=<optimized out>) at /build/ buildd/ gtk+2.0- 2.24.4/ gdk/gdk. c:139 user_data_ array_set_ data (array=0x246eb20, key=0x0, user_data=0x0, destroy=<optimized out>) at /build/ buildd/ cairo-1. 10.2/src/ cairo-array. c:487
gdk_arg_class_cb (key=<optimized out>, value=<optimized out>, user_data=
_cairo_
?? ()