From 35dffa07c203169bd32c5be76db001c683aacc94 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Thu, 11 Jul 2024 18:48:14 +0200
Subject: [PATCH] Fix race in trace tests

Could result in spurious unexpected send trace messages.
---
 erts/emulator/test/trace_sessions.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/erts/emulator/test/trace_sessions.erl b/erts/emulator/test/trace_sessions.erl
index c59a52eaba31..b31027ce7e53 100644
--- a/erts/emulator/test/trace_sessions.erl
+++ b/erts/emulator/test/trace_sessions.erl
@@ -264,9 +264,9 @@ init_group([pre_session|Tail], Config) ->
 
     %% Set a dummy send trace on all processes and ports
     %% but disable send trace to not get any messages.
+    1 = trace:send(S, false, []),
     trace:process(S, all, true, [send]),
     trace:port(S, all, true, [send]),
-    1 = trace:send(S, false, []),
 
     ets:insert(?MODULE, {pre_session, S, Tracer}),
     init_group(Tail, Config);