diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
index bbae2683a76..5443a8ca3fa 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
@@ -3787,7 +3787,8 @@ public class HRegionServer extends HasThread implements
 
     @Override
     public void run() {
-      LOG.warn("Aborting region server timed out, terminate forcibly...");
+      LOG.warn("Aborting region server timed out, terminating forcibly. Thread dump to stdout.");
+      Threads.printThreadInfo(System.out, "Zombie HRegionServer");
       System.exit(1);
     }
   }