--- /dev/null	2016-11-14 10:23:10.814783535 +0100
+++ new/test/gc/g1/TestParallelAlwaysPreTouch.java	2016-11-18 09:18:43.044765406 +0100
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test TestParallelAlwaysPreTouch
+ * @bug 8169703
+ * @summary Regression test to ensure AlwaysPreTouch with multiple threads works at mutator time.
+ * Allocates a few humongous objects that will be allocated by expanding the heap, causing concurrent parallel
+ * pre-touch.
+ * @requires vm.gc.G1
+ * @key gc
+ * @key regression
+ * @run main -Xms10M -Xmx100m -XX:G1HeapRegionSize=1M -XX:+AlwaysPreTouch -XX:PreTouchParallelChunkSize=512k -Xlog:gc+ergo+heap=debug,gc+heap=debug,gc=debug TestAlwaysPreTouch
+ */
+
+public class Test2GbHeap {
+  public static void main(String[] args) throws Exception {
+    final int M = 1024 * 1024; // Something guaranteed to be larger than a region to be counted as humongous.
+
+    for (int i = 0; i < 10; i++) {
+      Object[] obj = new Object[M];
+      System.out.println(obj);
+    }
+  }
+}
+