--- old/src/hotspot/share/runtime/objectMonitor.cpp	2018-09-17 23:28:59.147746771 -0700
+++ new/src/hotspot/share/runtime/objectMonitor.cpp	2018-09-17 23:28:58.887746780 -0700
@@ -103,7 +103,6 @@
 
 int ObjectMonitor::Knob_SpinLimit    = 5000;    // derived by an external tool -
 
-static int Knob_CASPenalty          = -1;      // Penalty for failed CAS
 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;
@@ -1865,7 +1864,6 @@
   // CONSIDER: use Prefetch::write() to avoid RTS->RTO upgrades
   // when preparing to LD...CAS _owner, etc and the CAS is likely
   // to succeed.
-  int caspty  = Knob_CASPenalty;
   int oxpty   = Knob_OXPenalty;
   int sss     = Knob_SpinSetSucc;
   if (sss && _succ == NULL) _succ = Self;
@@ -1933,15 +1931,12 @@
       }
 
       // The CAS failed ... we can take any of the following actions:
-      // * penalize: ctr -= Knob_CASPenalty
+      // * penalize: ctr -= CASPenalty
       // * exit spin with prejudice -- goto Abort;
       // * exit spin without prejudice.
       // * Since CAS is high-latency, retry again immediately.
       prv = ox;
-      if (caspty == -2) break;
-      if (caspty == -1) goto Abort;
-      ctr -= caspty;
-      continue;
+      goto Abort;
     }
 
     // Did lock ownership change hands ?