diff --git a/apps/emqx/integration_test/emqx_persistent_session_ds_SUITE.erl b/apps/emqx/integration_test/emqx_persistent_session_ds_SUITE.erl
index ab062bff7..a5260f780 100644
--- a/apps/emqx/integration_test/emqx_persistent_session_ds_SUITE.erl
+++ b/apps/emqx/integration_test/emqx_persistent_session_ds_SUITE.erl
@@ -252,7 +252,6 @@ t_session_subscription_idempotency(Config) ->
             ok
         end,
         fun(Trace) ->
-            ct:pal("trace:\n  ~p", [Trace]),
             Session = session_open(Node1, ClientId),
             ?assertMatch(
                 #{SubTopicFilter := #{}},
@@ -326,7 +325,6 @@ t_session_unsubscription_idempotency(Config) ->
             ok
         end,
         fun(Trace) ->
-            ct:pal("trace:\n  ~p", [Trace]),
             Session = session_open(Node1, ClientId),
             ?assertEqual(
                 #{},
@@ -415,10 +413,7 @@ do_t_session_discard(Params) ->
 
             ok
         end,
-        fun(Trace) ->
-            ct:pal("trace:\n  ~p", [Trace]),
-            ok
-        end
+        []
     ),
     ok.
 
diff --git a/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl b/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl
index 868d0191e..449d1fa51 100644
--- a/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl
+++ b/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl
@@ -581,7 +581,6 @@ t_write_failure(Config) ->
                 )
         end),
         fun(Trace0) ->
-            ct:pal("trace: ~p", [Trace0]),
             Trace = ?of_kind(
                 [buffer_worker_flush_nack, buffer_worker_retry_inflight_failed], Trace0
             ),
diff --git a/apps/emqx_bridge_gcp_pubsub/test/emqx_bridge_gcp_pubsub_producer_SUITE.erl b/apps/emqx_bridge_gcp_pubsub/test/emqx_bridge_gcp_pubsub_producer_SUITE.erl
index 6666a3fd0..d96157f8c 100644
--- a/apps/emqx_bridge_gcp_pubsub/test/emqx_bridge_gcp_pubsub_producer_SUITE.erl
+++ b/apps/emqx_bridge_gcp_pubsub/test/emqx_bridge_gcp_pubsub_producer_SUITE.erl
@@ -1929,7 +1929,6 @@ t_bad_attributes(Config) ->
             ok
         end,
         fun(Trace) ->
-            ct:pal("trace:\n  ~p", [Trace]),
             ?assertMatch(
                 [
                     #{placeholder := [<<"payload">>, <<"ok">>], value := #{}},
diff --git a/apps/emqx_bridge_mysql/test/emqx_bridge_mysql_SUITE.erl b/apps/emqx_bridge_mysql/test/emqx_bridge_mysql_SUITE.erl
index 8b719de9a..9ad2fbc5a 100644
--- a/apps/emqx_bridge_mysql/test/emqx_bridge_mysql_SUITE.erl
+++ b/apps/emqx_bridge_mysql/test/emqx_bridge_mysql_SUITE.erl
@@ -517,7 +517,6 @@ t_write_failure(Config) ->
             ok
         end,
         fun(Trace0) ->
-            ct:pal("trace: ~p", [Trace0]),
             Trace = ?of_kind(buffer_worker_flush_nack, Trace0),
             ?assertMatch([#{result := {error, _}} | _], Trace),
             [#{result := {error, Error}} | _] = Trace,
diff --git a/apps/emqx_bridge_pgsql/test/emqx_bridge_pgsql_SUITE.erl b/apps/emqx_bridge_pgsql/test/emqx_bridge_pgsql_SUITE.erl
index 3e9428c88..f4917f387 100644
--- a/apps/emqx_bridge_pgsql/test/emqx_bridge_pgsql_SUITE.erl
+++ b/apps/emqx_bridge_pgsql/test/emqx_bridge_pgsql_SUITE.erl
@@ -520,7 +520,6 @@ t_write_failure(Config) ->
                 )
         end),
         fun(Trace0) ->
-            ct:pal("trace: ~p", [Trace0]),
             Trace = ?of_kind(buffer_worker_flush_nack, Trace0),
             ?assertMatch([#{result := {error, _}} | _], Trace),
             [#{result := {error, Error}} | _] = Trace,
diff --git a/apps/emqx_resource/test/emqx_resource_SUITE.erl b/apps/emqx_resource/test/emqx_resource_SUITE.erl
index 99e85424d..171baf4ad 100644
--- a/apps/emqx_resource/test/emqx_resource_SUITE.erl
+++ b/apps/emqx_resource/test/emqx_resource_SUITE.erl
@@ -3346,7 +3346,6 @@ wait_n_events(NEvents, Timeout, EventName) ->
     end.
 
 assert_sync_retry_fail_then_succeed_inflight(Trace) ->
-    ct:pal("  ~p", [Trace]),
     ?assert(
         ?strict_causality(
             #{?snk_kind := buffer_worker_flush_nack, ref := _Ref},
@@ -3366,7 +3365,6 @@ assert_sync_retry_fail_then_succeed_inflight(Trace) ->
     ok.
 
 assert_async_retry_fail_then_succeed_inflight(Trace) ->
-    ct:pal("  ~p", [Trace]),
     ?assert(
         ?strict_causality(
             #{?snk_kind := handle_async_reply, action := nack},