anchor.diff:  %% Merge return from erlang:system_info(check_io)
   %% as if it was one big pollset.
   get_check_io_total(ChkIo) ->
  -    ct:log("ChkIo = ~p~n",[ChkIo]),
  +    ct:log("ChkIo = ~p (~p)~n",[ChkIo, nodes()]),
       {Fallback, Rest} = get_fallback(ChkIo),
       OnlyPollThreads = [PS || PS <- Rest, not is_scheduler_pollset(PS)],
       add_fallback_infos(Fallback,
  
positive.code:     [{testcase, Case}|Config].
  
  end_per_testcase(Case, Config) ->
      erlang:display({end_per_testcase, Case}),
      try rpc(Config, fun() ->
                              get_stable_check_io_info(),
  
negative.code:         undefined ->
              Config;
          {Peer, _Node} ->
              ok = peer:stop(Peer),
              {save_config, proplists:delete(node, Config)}
      end.
  
  