--- old/src/hotspot/cpu/x86/assembler_x86.cpp	2018-09-26 10:01:25.893907690 -0400
+++ new/src/hotspot/cpu/x86/assembler_x86.cpp	2018-09-26 10:01:24.105803646 -0400
@@ -972,7 +972,6 @@
     return ip;
 
   case 0xF0:                    // Lock
-    assert(os::is_MP(), "only on MP");
     goto again_after_prefix;
 
   case 0xF3:                    // For SSE