Obtained 26 stack frames.
#0 0x007f9f72a27e60 in funlockfile
#1 0x007f9f730182fd in g_type_check_instance
#2 0x007f9f7300de7c in g_signal_handlers_disconnect_matched
#3 0x0055b7d3ec7243 in DisconnectGtkSignal(void*, GtkCallbackResponse (*)(), void*)
#4 0x0055b7d376eb6d in MenuItem::~MenuItem()
#5 0x0055b7d37733e3 in RemoveItemFromMenu(std::list<MenuItem, std::allocator<MenuItem> >*, core::basic_string_ref<char>)
#6 0x0055b7d3773423 in RemoveItemFromMenu(std::list<MenuItem, std::allocator<MenuItem> >*, core::basic_string_ref<char>)
#7 0x0055b7d3773263 in MenuController::RemoveMenuItem(core::basic_string_ref<char>)
#8 0x0055b7d2401e1c in Menu_CUSTOM_RemoveMenuItem(ScriptingBackendNativeStringPtrOpaque*)
#9 0x00000040be7b53 in (wrapper managed-to-native) UnityEditor.Menu:RemoveMenuItem (string)
#10 0x00000040be6cbf in UnityEditor.EditorApplication/<>c__DisplayClass103_0:<CallDelayed>b__0 ()
#11 0x007f9de35f0228 in mono_get_runtime_build_info
#12 0x007f9de378ef2e in mono_runtime_invoke
#13 0x007f9de378ee78 in mono_runtime_invoke
#14 0x0055b7d2ce83f3 in scripting_method_invoke(ScriptingMethodPtr, ScriptingObjectPtr, ScriptingArguments&, ScriptingExceptionPtr*, bool)
#15 0x0055b7d2cc64d7 in ScriptingInvocation::Invoke(ScriptingExceptionPtr*, bool)
#16 0x0055b7d2e100ff in Scripting::UnityEditor::EditorApplicationProxy::Internal_InvokeTickEvents(ScriptingExceptionPtr*)
#17 0x0055b7d3e28523 in Application::TickTimer()
#18 0x0055b7d3ec658a in MainMessageIteration(void*)
#19 0x007f9f72f0118c in g_main_context_dispatch
#20 0x007f9f72f01538 in g_main_context_dispatch
#21 0x007f9f72f01853 in g_main_loop_run
#22 0x007f9f735c6e85 in gtk_main
#23 0x0055b7d3ec5747 in main
#24 0x007f9f72858b80 in __libc_start_main
#25 0x0055b7d20a6029 in _start