X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;ds=sidebyside;f=src%2Fbin%2Flttng-sessiond%2Fcmd.c;h=0036397c3b8492ffecd51921112132479fa4caf9;hb=6314496ffcf94c0ccf2fea63a215e0a84a5ee463;hp=2963577563cc94aa658003e89095c95b36fdb770;hpb=c0a66c84b5b2484b75798aec7543b680b4d4ab6c;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 296357756..0036397c3 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -819,8 +819,7 @@ end:
 	return nb_event;
 
 error:
-	/* Negate the error code to differentiate the size from an error */
-	return -ret;
+	return ret;
 }
 
 /*
@@ -2794,6 +2793,16 @@ int cmd_start_trace(struct ltt_session *session)
 		}
 	}
 
+	/*
+	 * Open a packet in every stream of the session to ensure that viewers
+	 * can correctly identify the boundaries of the periods during which
+	 * tracing was active for this session.
+	 */
+	ret = session_open_packets(session);
+	if (ret != LTTNG_OK) {
+		goto error;
+	}
+
 	/*
 	 * Clear the flag that indicates that a rotation was done while the
 	 * session was stopped.