# HG changeset patch
# User ctornqvi
# Date 1373654843 -7200
# Node ID b7e3e41cc9cd0ab72e7262102f7d9f2a6686a023
# Parent  5de3638104b4d7a27d3b36812f72fc04d035dbbf# Parent  f20c05d2fddac104f2058d87d4a2e2f219a604c4
Merge

diff -r 5de3638104b4 -r b7e3e41cc9cd hotspot/src/share/vm/services/memTracker.cpp
--- a/hotspot/src/share/vm/services/memTracker.cpp	Fri Jul 12 18:43:27 2013 +0200
+++ b/hotspot/src/share/vm/services/memTracker.cpp	Fri Jul 12 20:47:23 2013 +0200
@@ -385,6 +385,7 @@
 #define SAFE_SEQUENCE_THRESHOLD    30
 #define HIGH_GENERATION_THRESHOLD  60
 #define MAX_RECORDER_THREAD_RATIO  30
+#define MAX_RECORDER_PER_THREAD    100
 
 void MemTracker::sync() {
   assert(_tracking_level > NMT_off, "NMT is not enabled");
@@ -437,6 +438,11 @@
         // means that worker thread is lagging behind in processing them.
         if (!AutoShutdownNMT) {
           _slowdown_calling_thread = (MemRecorder::_instance_count > MAX_RECORDER_THREAD_RATIO * _thread_count);
+        } else {
+          // If auto shutdown is on, enforce MAX_RECORDER_PER_THREAD threshold to prevent OOM
+          if (MemRecorder::_instance_count >= _thread_count * MAX_RECORDER_PER_THREAD) {
+            shutdown(NMT_out_of_memory);
+          }
         }
 
         // check _worker_thread with lock to avoid racing condition