anchor.diff:  	query_log2(Start, End, MFA, disk_log:chunk(Log, Continuation), []).
   %% @hidden
   query_log1(Start, End, Log, MFA) ->
  -	case start_binary_tree(Log, Start, End) of
  -		eof ->
  -			{eof, []};
  +	case start_binary_tree(Log, Start) of
   		{error, Reason} ->
   			{error, Reason};
   		Continuation ->
  
positive.code: 	error_logger:error_report([Trunc, {module, ?MODULE},
  			{log, log_name(acct_log_name)}, {error, Reason}]),
  	ipdr_log4(IpdrLog, 0);
  ipdr_log1(IpdrLog, _Start, _End, eof) ->
  	ipdr_log4(IpdrLog, 0);
  ipdr_log1(IpdrLog, Start, End, Cont) ->
  	ipdr_log2(IpdrLog, Start, End, [], disk_log:chunk(log_name(acct_log_name), Cont)).
  %% @hidden
  
negative.code: 			case disk_log:log(IpdrLog, IpdrDoc) of
  				ok ->
  					ipdr_log1(IpdrLog, Start, End,
  %							start_binary_tree(log_name(acct_log_name), Start, End));
  							start_binary_tree(log_name(acct_log_name), Start));
  				{error, Reason} ->
  					Descr = lists:flatten(disk_log:format_error(Reason)),
  					Trunc = lists:sublist(Descr, length(Descr) - 1),
  