#0 0x00007f5d725a8801 in __dynamic_cast () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 No symbol table info available. #1 0x00007f5d5cab9cf6 in std::list, std::allocator > > unity::launcher::LauncherModel::GetSublist() () from /usr/lib/compiz/libunityshell.so No symbol table info available. #2 0x00007f5d5cab41b9 in unity::launcher::Controller::Impl::SortAndUpdate() () from /usr/lib/compiz/libunityshell.so No symbol table info available. #3 0x00007f5d5cab9b5c in sigc::internal::slot_call1 >, void, nux::ObjectPtr >::call_it(sigc::internal::slot_rep*, nux::ObjectPtr const&) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #4 0x00007f5d5cace785 in unity::launcher::LauncherModel::RemoveIcon(nux::ObjectPtr) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #5 0x00007f5d5cace8c3 in ?? () from /usr/lib/compiz/libunityshell.so No symbol table info available. #6 0x00007f5d56b5ea11 in unity::glib::Source::SourceCallback(void*) () from /usr/lib/libunity-core-6.0.so.5 No symbol table info available. #7 0x00007f5d708c193b in g_main_context_is_owner (context=0x401f0f00000000) at /build/buildd/glib2.0-2.33.12/./glib/gmain.c:3924 is_owner = #8 0x00007f5d70b6e9a0 in thread_context_stack () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #9 0x0000000000000000 in ?? () No symbol table info available.