#0  0xb761ffcc in g_logv () from /usr/lib/libglib-2.0.so.0
#1  0xb7620249 in g_log () from /usr/lib/libglib-2.0.so.0
#2  0xb76204ab in g_return_if_fail_warning () from /usr/lib/libglib-2.0.so.0
#3  0xb769e793 in g_object_ref () from /usr/lib/libgobject-2.0.so.0
#4  0x080b1f09 in ?? ()
#5  0x00000000 in ?? ()