#0 0x0000000000000000 in ?? () No symbol table info available. #1 0x00007fc4ab047821 in unity::ui::EdgeBarrierController::Impl::OnPointerBarrierEvent (this=0x2defcc0, owner=0x3b26650, event=...) at /build/buildd/unity-5.10.0/plugins/unityshell/src/EdgeBarrierController.cpp:139 subscriber = monitor = #2 0x00007fc4ab0496f2 in operator() (_A_a2=, _A_a1=, this=) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1917 No locals. #3 operator()&> (_A_arg2=, _A_arg1=, this=) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:103 No locals. #4 sigc::internal::slot_call2 >, void, unity::ui::PointerBarrierWrapper*, std::shared_ptr >::call_it (rep=, a_1=, a_2=) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:173 typed_rep = #5 0x00007fc4ab1040c6 in deallocate (__p=0x51a7e10, this=) at /usr/include/c++/4.6/ext/new_allocator.h:98 No locals. #6 _M_put_node (__p=0x51a7e10, this=) at /usr/include/c++/4.6/bits/stl_list.h:331 No locals. #7 _M_create_node (this=) at /usr/include/c++/4.6/bits/stl_list.h:499 __p = 0x51a7e10 #8 emplace (__position=, this=) at /usr/include/c++/4.6/bits/list.tcc:91 __tmp = #9 insert (__x=..., __position=, this=) at /usr/include/c++/4.6/bits/stl_list.h:1062 No locals. #10 temp_slot_list (slots=, this=0x7fff99b0f190) at /usr/include/sigc++-2.0/sigc++/signal_base.h:183 No locals. #11 emit (_A_a1=@0x5347efc, impl=) at /usr/include/sigc++-2.0/sigc++/signal.h:1004 exec = {sig_ = 0x2} slots = {slots_ = @0x1, placeholder = {_M_node = 0x24c1290}} #12 emit (_A_a1=@0x5347efc, this=) at /usr/include/sigc++-2.0/sigc++/signal.h:2781 No locals. #13 EmitChanged (this=0x7fc4bbdd49a0, new_value=@0x5347efc) at /usr/include/Nux-2.0/NuxCore/Property-inl.h:49 No locals. #14 Set (value=@0x7fff99b0f1e0, this=0x7fc4bbdd49a0) at /usr/include/Nux-2.0/NuxCore/Property-inl.h:106 No locals. #15 operator= (value=@0x7fff99b0f1e0, this=0x7fc4bbdd49a0) at /usr/include/Nux-2.0/NuxCore/Property-inl.h:75 No locals. #16 unity::ui::PointerBarrierWrapper::PointerBarrierWrapper (this=0x5347d80) at /build/buildd/unity-5.10.0/plugins/unityshell/src/PointerBarrier.cpp:40 No locals. #17 0x0000000002455000 in ?? () No symbol table info available. #18 0x0000000000000001 in ?? () No symbol table info available. #19 0x00007fc4bbb35f00 in ?? () from /tmp/tmpjpe0Sv/lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #20 0x0000000000000000 in ?? () No symbol table info available.