src/hotspot/cpu/x86/assembler_x86.cpp

@@ -970,11 +970,10 @@
     if (which == end_pc_operand)  return ip + 4;
     assert(which == call32_operand, "call has no disp32 or imm");
     return ip;
 
   case 0xF0:                    // Lock
-    assert(os::is_MP(), "only on MP");
     goto again_after_prefix;
 
   case 0xF3:                    // For SSE
   case 0xF2:                    // For SSE2
     switch (0xFF & *ip++) {