src/hotspot/cpu/x86/assembler_x86.cpp

*** 970,980 ****
      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++) {
--- 970,979 ----