diff --git a/[refs] b/[refs]
index 635afa481fff..e8e70a3dd26b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6a0e55d85babfccfd976703852ec8bab388b3a10
+refs/heads/master: 6bb8f311a870d6042e0310309eb3d607ae52fe3e
diff --git a/trunk/tools/perf/util/sort.c b/trunk/tools/perf/util/sort.c
index 401e220566fd..1ee8f1e40f18 100644
--- a/trunk/tools/perf/util/sort.c
+++ b/trunk/tools/perf/util/sort.c
@@ -151,11 +151,17 @@ sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
 {
 	u64 ip_l, ip_r;
 
+	if (!left->ms.sym && !right->ms.sym)
+		return right->level - left->level;
+
+	if (!left->ms.sym || !right->ms.sym)
+		return cmp_null(left->ms.sym, right->ms.sym);
+
 	if (left->ms.sym == right->ms.sym)
 		return 0;
 
-	ip_l = left->ms.sym ? left->ms.sym->start : left->ip;
-	ip_r = right->ms.sym ? right->ms.sym->start : right->ip;
+	ip_l = left->ms.sym->start;
+	ip_r = right->ms.sym->start;
 
 	return (int64_t)(ip_r - ip_l);
 }