Index: sys/geom/multipath/g_multipath.c
===================================================================
--- sys/geom/multipath/g_multipath.c
+++ sys/geom/multipath/g_multipath.c
@@ -898,7 +898,7 @@
 		sc = gp1->softc;
 		if (gp == NULL) {
 			char buf[16];
-			u_long rand = random();
+			u_long rand = arc4random();
 
 			snprintf(buf, sizeof (buf), "%s-%lu", md.md_name, rand);
 			printf("GEOM_MULTIPATH: geom %s/%s exists already\n",
Index: sys/kern/kern_fail.c
===================================================================
--- sys/kern/kern_fail.c
+++ sys/kern/kern_fail.c
@@ -167,7 +167,7 @@
 	volatile bool	fe_stale;
 	enum fail_point_t	fe_type;	/**< type of entry */
 	int		fe_arg;		/**< argument to type (e.g. return value) */
-	int		fe_prob;	/**< likelihood of firing in millionths */
+	u_int		fe_prob;	/**< likelihood of firing in millionths */
 	int32_t		fe_count;	/**< number of times to fire, -1 means infinite */
 	pid_t		fe_pid;		/**< only fail for this process */
 	struct fail_point	*fe_parent;	/**< backpointer to fp */
@@ -568,7 +568,7 @@
 			continue;
 
 		if (ent->fe_prob < PROB_MAX &&
-		    ent->fe_prob < random() % PROB_MAX)
+		    ent->fe_prob < arc4random() % PROB_MAX)
 			continue;
 
 		if (ent->fe_pid != NO_PID && ent->fe_pid != curproc->p_pid)
Index: sys/kern/kern_synch.c
===================================================================
--- sys/kern/kern_synch.c
+++ sys/kern/kern_synch.c
@@ -607,7 +607,7 @@
 	 * run at regular intervals.
 	 */
 	callout_reset_sbt(&loadav_callout,
-	    SBT_1US * (4000000 + (int)(random() % 2000001)), SBT_1US,
+	    SBT_1US * (4000000 + (arc4random() % 2000001)), SBT_1US,
 	    loadav, NULL, C_DIRECT_EXEC | C_PREL(32));
 }
 
Index: sys/net/altq/altq_classq.h
===================================================================
--- sys/net/altq/altq_classq.h
+++ sys/net/altq/altq_classq.h
@@ -152,7 +152,7 @@
 _getq_random(class_queue_t *q)
 {
 	struct mbuf *m;
-	int i, n;
+	u_int i, n;
 
 	if ((m = qtail(q)) == NULL)
 		return NULL;
@@ -161,7 +161,7 @@
 	else {
 		struct mbuf *prev = NULL;
 
-		n = random() % qlen(q) + 1;
+		n = arc4random() % qlen(q) + 1;
 		for (i = 0; i < n; i++) {
 			prev = m;
 			m = m->m_nextpkt;
Index: sys/vm/memguard.c
===================================================================
--- sys/vm/memguard.c
+++ sys/vm/memguard.c
@@ -447,7 +447,7 @@
 	if ((memguard_options & MG_GUARD_ALLLARGE) != 0 && size >= PAGE_SIZE)
 		return (1);
 	if (memguard_frequency > 0 &&
-	    (random() % 100000) < memguard_frequency) {
+	    (arc4random() % 100000) < memguard_frequency) {
 		memguard_frequency_hits++;
 		return (1);
 	}