Comment 3 for bug 944217

StacktraceTop:
 std::__detail::_List_node_base::_M_hook (this=0x46f9e10, __position=0x3f1d318) at ../../../../src/libstdc++-v3/src/list.cc:129
 emplace<sigc::slot_base> (__position=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/list.tcc:92
 insert (__x=..., __position=<optimized out>, this=<optimized out>) at /usr/include/c++/4.6/bits/stl_list.h:1062
 temp_slot_list (slots=<optimized out>, this=0x7fffab7089e0) at /usr/include/sigc++-2.0/sigc++/signal_base.h:183
 emit (_A_a2=..., _A_a1=@0x7fffab708a08, impl=<optimized out>) at /usr/include/sigc++-2.0/sigc++/signal.h:1246