diff --git a/jetty-io/src/main/java/org/eclipse/jetty/io/AbstractConnection.java b/jetty-io/src/main/java/org/eclipse/jetty/io/AbstractConnection.java
index 164bf4b248b..11c4b1a362c 100644
--- a/jetty-io/src/main/java/org/eclipse/jetty/io/AbstractConnection.java
+++ b/jetty-io/src/main/java/org/eclipse/jetty/io/AbstractConnection.java
@@ -545,7 +545,7 @@ public abstract class AbstractConnection implements Connection
         @Override
         public String toString()
         {
-            return String.format("AC.ExReadCB@%x", AbstractConnection.this.hashCode());
+            return String.format("AC.ReadCB@%x{%s}", AbstractConnection.this.hashCode(),AbstractConnection.this);
         }
     };
 }
diff --git a/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java b/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java
index 6af94f59f9c..5460974e44a 100644
--- a/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java
+++ b/jetty-io/src/main/java/org/eclipse/jetty/io/FillInterest.java
@@ -25,6 +25,8 @@ import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;
 
 import org.eclipse.jetty.util.Callback;
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.util.log.Logger;
 
 
 /* ------------------------------------------------------------ */
@@ -35,6 +37,7 @@ import org.eclipse.jetty.util.Callback;
  */
 public abstract class FillInterest
 {
+    private final static Logger LOG = Log.getLogger(FillInterest.class);
     private final AtomicReference<Callback> _interested = new AtomicReference<>(null);
 
     /* ------------------------------------------------------------ */
@@ -56,7 +59,10 @@ public abstract class FillInterest
             throw new IllegalArgumentException();
         
         if (!_interested.compareAndSet(null,callback))
+        {
+            LOG.warn("Read pending for "+_interested.get()+" pervented "+callback);
             throw new ReadPendingException();
+        }
         try
         {
             if (needsFill())
diff --git a/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConnection.java b/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConnection.java
index e814110da68..faca50e73c5 100644
--- a/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConnection.java
+++ b/jetty-server/src/main/java/org/eclipse/jetty/server/HttpConnection.java
@@ -237,7 +237,7 @@ public class HttpConnection extends AbstractConnection implements Runnable, Http
         finally
         {                        
             setCurrentConnection(null);
-            if (!suspended && getEndPoint().isOpen())
+            if (!suspended && getEndPoint().isOpen() && getEndPoint().getConnection()==this)
             {
                 fillInterested();
             }