diff --git a/[refs] b/[refs]
index 679f21f6d3ae..ddeb1a0be42a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a7c2491a13cc72fc09c062e635b9a77ff6bb4a73
+refs/heads/master: 6003a93e7bf6c02f33c02976ff364785d4273295
diff --git a/trunk/ipc/sem.c b/trunk/ipc/sem.c
index 19af028a3e38..6a16f8edf2b2 100644
--- a/trunk/ipc/sem.c
+++ b/trunk/ipc/sem.c
@@ -381,6 +381,7 @@ static void update_queue (struct sem_array * sma)
 			/* hands-off: q will disappear immediately after
 			 * writing q->status.
 			 */
+			smb_wmb();
 			q->status = error;
 			q = n;
 		} else {
@@ -461,6 +462,7 @@ static void freeary (struct sem_array *sma, int id)
 		n = q->next;
 		q->status = IN_WAKEUP;
 		wake_up_process(q->sleeper); /* doesn't sleep */
+		smp_wmb();
 		q->status = -EIDRM;	/* hands-off q */
 		q = n;
 	}