--- a/.hgtags	Tue Jun 16 15:59:57 2015 +0200
+++ b/.hgtags	Sat Jul 04 15:32:44 2015 +0100
@@ -654,3 +654,4 @@
 4b6687a4f2fe84211b8b3b5afb34b5186afbddf6 hs25.60-b21
 e0d75c284bd1c09fd7d9ef09627d8a99b88d468d jdk8u60-b21
 ff8fdeb2fb6d6f3348597339c53412f8f6202c3f hs25.60-b22
+878cb0df27c22c6b1e9f4add1eb3da3edc8ab51d jdk8u60-b22

--- a/THIRD_PARTY_README	Tue Jun 16 15:59:57 2015 +0200
+++ b/THIRD_PARTY_README	Sat Jul 04 15:32:44 2015 +0100
@@ -1140,37 +1140,6 @@
 
 --------------------------------------------------------------------------------
 
-%% This notice is provided with respect to JSON, which may be included 
-with JRE 8 & JDK 8.
-
---- begin of LICENSE ---
-
-Copyright (c) 2002 JSON.org
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-The Software shall be used for Good, not Evil.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
---- end of LICENSE ---
-
--------------------------------------------------------------------------------
-
 %% This notice is provided with respect to Kerberos functionality, which 
 which may be included with JRE 8, JDK 8, and OpenJDK 8.
 
@@ -1250,7 +1219,7 @@
 
 -------------------------------------------------------------------------------
 
-%% This notice is provided with respect to libpng 1.6.16, which may be
+%% This notice is provided with respect to libpng 1.6.16, which may be 
 included with JRE 8, JDK 8, and OpenJDK 8.
 
 --- begin of LICENSE ---
@@ -1370,7 +1339,7 @@
 
 -------------------------------------------------------------------------------
 
-%% This notice is provided with respect to libungif 4.1.3, which may be 
+%% This notice is provided with respect to GIFLIB 5.1.1 & libungif 4.1.3, which may be 
 included with JRE 8, JDK 8, and OpenJDK 8.
 
 --- begin of LICENSE ---
@@ -1399,13 +1368,13 @@
 
 -------------------------------------------------------------------------------
 
-%% This notice is provided with respect to Little CMS 2.5, which may be 
+%% This notice is provided with respect to Little CMS 2.7, which may be 
 included with JRE 8, JDK 8, and OpenJDK 8.
 
 --- begin of LICENSE ---
 
 Little CMS
-Copyright (c) 1998-2011 Marti Maria Saguer
+Copyright (c) 1998-2015 Marti Maria Saguer
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

--- a/make/hotspot_version	Tue Jun 16 15:59:57 2015 +0200
+++ b/make/hotspot_version	Sat Jul 04 15:32:44 2015 +0100
@@ -34,8 +34,8 @@
 HOTSPOT_VM_COPYRIGHT=Copyright 2015
 
 HS_MAJOR_VER=25
-HS_MINOR_VER=60
-HS_BUILD_NUMBER=22
+HS_MINOR_VER=66
+HS_BUILD_NUMBER=01
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8

--- a/src/os/bsd/vm/jsig.c	Tue Jun 16 15:59:57 2015 +0200
+++ b/src/os/bsd/vm/jsig.c	Sat Jul 04 15:32:44 2015 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2015, 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
@@ -36,6 +36,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
+#include <string.h>
 
 #define MAXSIGNUM 32
 #define MASK(sig) ((unsigned int)1 << sig)
@@ -43,6 +44,9 @@
 static struct sigaction sact[MAXSIGNUM]; /* saved signal handlers */
 static unsigned int jvmsigs = 0; /* signals used by jvm */
 
+static pthread_key_t reentry_flag_key;
+static pthread_once_t reentry_key_init_once = PTHREAD_ONCE_INIT;
+
 /* used to synchronize the installation of signal handlers */
 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
 static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
@@ -59,6 +63,15 @@
 static bool jvm_signal_installing = false;
 static bool jvm_signal_installed = false;
 
+#define check_status(cmd) \
+  do { \
+    int status = (cmd); \
+    if (status != 0) { \
+      printf("error %s (%d) in " #cmd "\n", strerror(status), status); \
+      exit(1); \
+    } \
+  } while (0)
+
 static void signal_lock() {
   pthread_mutex_lock(&mutex);
   /* When the jvm is installing its set of signal handlers, threads
@@ -74,8 +87,15 @@
   pthread_mutex_unlock(&mutex);
 }
 
+static void reentry_tls_init() {
+    // value for reentry_flag_key will default to NULL (false)
+    check_status(pthread_key_create(&reentry_flag_key, NULL));
+}
+
 static sa_handler_t call_os_signal(int sig, sa_handler_t disp,
                                    bool is_sigset) {
+  sa_handler_t res;
+
   if (os_signal == NULL) {
     if (!is_sigset) {
       os_signal = (signal_t)dlsym(RTLD_NEXT, "signal");
@@ -87,7 +107,12 @@
       exit(0);
     }
   }
-  return (*os_signal)(sig, disp);
+  check_status(pthread_once(&reentry_key_init_once, reentry_tls_init));
+  // set reentry_flag_key to non-NULL to show reentry
+  check_status(pthread_setspecific(reentry_flag_key, &res));
+  res = (*os_signal)(sig, disp);
+  check_status(pthread_setspecific(reentry_flag_key, NULL));
+  return res;
 }
 
 static void save_signal_handler(int sig, sa_handler_t disp) {
@@ -161,6 +186,11 @@
   bool sigused;
   struct sigaction oldAct;
 
+  check_status(pthread_once(&reentry_key_init_once, reentry_tls_init));
+  if (pthread_getspecific(reentry_flag_key) != NULL) {
+    return call_os_sigaction(sig, act, oact);
+  }
+
   signal_lock();
 
   sigused = (MASK(sig) & jvmsigs) != 0;