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-rw-r--r--lib/kernel/src/inet_db.erl3
-rw-r--r--lib/kernel/src/seq_trace.erl16
2 files changed, 15 insertions, 4 deletions
diff --git a/lib/kernel/src/inet_db.erl b/lib/kernel/src/inet_db.erl
index d5c5205dbc..465cec1b45 100644
--- a/lib/kernel/src/inet_db.erl
+++ b/lib/kernel/src/inet_db.erl
@@ -1206,7 +1206,8 @@ handle_set_file(Option, Fname, TagTm, TagInfo, ParseFun, From,
File = filename:flatten(Fname),
ets:insert(Db, {res_optname(Option), File}),
ets:insert(Db, {TagInfo, undefined}),
- ets:insert(Db, {TagTm, 0}),
+ TimeZero = - (?RES_FILE_UPDATE_TM + 1), % Early enough
+ ets:insert(Db, {TagTm, TimeZero}),
{reply,ok,State};
true ->
File = filename:flatten(Fname),
diff --git a/lib/kernel/src/seq_trace.erl b/lib/kernel/src/seq_trace.erl
index 01ac024c88..cc0c10909b 100644
--- a/lib/kernel/src/seq_trace.erl
+++ b/lib/kernel/src/seq_trace.erl
@@ -106,14 +106,24 @@ reset_trace() ->
%% reset_trace(Pid) -> % this might be a useful function too
--type tracer() :: (Pid :: pid()) | port() | 'false'.
+-type tracer() :: (Pid :: pid()) | port() |
+ (TracerModule :: {module(), term()}) |
+ 'false'.
-spec set_system_tracer(Tracer) -> OldTracer when
Tracer :: tracer(),
OldTracer :: tracer().
-set_system_tracer(Pid) ->
- erlang:system_flag(sequential_tracer, Pid).
+set_system_tracer({Module, State} = Tracer) ->
+ case erlang:module_loaded(Module) of
+ false ->
+ Module:enabled(trace_status, erlang:self(), State);
+ true ->
+ ok
+ end,
+ erlang:system_flag(sequential_tracer, Tracer);
+set_system_tracer(Tracer) ->
+ erlang:system_flag(sequential_tracer, Tracer).
-spec get_system_tracer() -> Tracer when
Tracer :: tracer().