X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=b29c6745bd51e8ea0cd1c0d9648f0ab8c3fe4198;hb=19154d2ab25daef13e23586d1c5201b6baaf8148;hp=fb659b7e02d31a21168dfda4c15332fb8486514f;hpb=9031b6b05822aaae4359cc622bcc2d30b1369f5f;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index fb659b7e0..b29c6745b 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -4374,7 +4374,7 @@ error:
 	}
 
 	lttng_poll_clean(&events);
-
+	stop_threads();
 	rcu_unregister_thread();
 	return NULL;
 }
@@ -5416,9 +5416,6 @@ error:
 static void sighandler(int sig)
 {
 	switch (sig) {
-	case SIGPIPE:
-		DBG("SIGPIPE caught");
-		return;
 	case SIGINT:
 		DBG("SIGINT caught");
 		stop_threads();
@@ -5450,9 +5447,10 @@ static int set_signal_handler(void)
 		return ret;
 	}
 
-	sa.sa_handler = sighandler;
 	sa.sa_mask = sigset;
 	sa.sa_flags = 0;
+
+	sa.sa_handler = sighandler;
 	if ((ret = sigaction(SIGTERM, &sa, NULL)) < 0) {
 		PERROR("sigaction");
 		return ret;
@@ -5463,12 +5461,13 @@ static int set_signal_handler(void)
 		return ret;
 	}
 
-	if ((ret = sigaction(SIGPIPE, &sa, NULL)) < 0) {
+	if ((ret = sigaction(SIGUSR1, &sa, NULL)) < 0) {
 		PERROR("sigaction");
 		return ret;
 	}
 
-	if ((ret = sigaction(SIGUSR1, &sa, NULL)) < 0) {
+	sa.sa_handler = SIG_IGN;
+	if ((ret = sigaction(SIGPIPE, &sa, NULL)) < 0) {
 		PERROR("sigaction");
 		return ret;
 	}
@@ -6222,6 +6221,12 @@ exit_client:
 exit_health:
 
 exit_init_data:
+	/*
+	 * Wait for all pending call_rcu work to complete before tearing
+	 * down data structures. call_rcu worker may be trying to
+	 * perform lookups in those structures.
+	 */
+	rcu_barrier();
 	/*
 	 * sessiond_cleanup() is called when no other thread is running, except
 	 * the ht_cleanup thread, which is needed to destroy the hash tables.