--- old/src/hotspot/share/runtime/objectMonitor.cpp	2018-09-17 23:29:07.443746482 -0700
+++ new/src/hotspot/share/runtime/objectMonitor.cpp	2018-09-17 23:29:07.191746491 -0700
@@ -103,7 +103,6 @@
 
 int ObjectMonitor::Knob_SpinLimit    = 5000;    // derived by an external tool -
 
-static int Knob_OXPenalty           = -1;      // Penalty for observed _owner change
 static int Knob_SpinSetSucc         = 1;       // spinners set the _succ field
 static int Knob_SpinEarly           = 1;
 static int Knob_SuccEnabled         = 1;       // futile wake throttling
@@ -1864,7 +1863,6 @@
   // CONSIDER: use Prefetch::write() to avoid RTS->RTO upgrades
   // when preparing to LD...CAS _owner, etc and the CAS is likely
   // to succeed.
-  int oxpty   = Knob_OXPenalty;
   int sss     = Knob_SpinSetSucc;
   if (sss && _succ == NULL) _succ = Self;
   Thread * prv = NULL;
@@ -1941,9 +1939,7 @@
 
     // Did lock ownership change hands ?
     if (ox != prv && prv != NULL) {
-      if (oxpty == -2) break;
-      if (oxpty == -1) goto Abort;
-      ctr -= oxpty;
+      goto Abort;
     }
     prv = ox;