--- a/src/hotspot/share/runtime/handshake.cpp	Thu Nov 08 11:22:28 2018 -0800
+++ b/src/hotspot/share/runtime/handshake.cpp	Thu Nov 08 11:45:13 2018 -0800
@@ -126,10 +126,6 @@
       return;
     }
 
-    if (!UseMembar) {
-      os::serialize_thread_states();
-    }
-
     log_trace(handshake)("Thread signaled, begin processing by VMThtread");
     jlong start_time = os::elapsed_counter();
     do {
@@ -173,10 +169,6 @@
       return;
     }
 
-    if (!UseMembar) {
-      os::serialize_thread_states();
-    }
-
     log_debug(handshake)("Threads signaled, begin processing blocked threads by VMThtread");
     const jlong start_time = os::elapsed_counter();
     int number_of_threads_completed = 0;