--- old/src/share/vm/utilities/vmError.cpp	2016-05-09 21:13:18.470568025 +0900
+++ new/src/share/vm/utilities/vmError.cpp	2016-05-09 21:13:18.287235318 +0900
@@ -731,6 +731,7 @@
   STEP("printing heap information")
 
      if (_verbose && Universe::is_fully_initialized()) {
+       MutexLockerEx hl(Heap_lock, true); // No safepoint check
        Universe::heap()->print_on_error(st);
        st->cr();
        st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));
@@ -907,6 +908,7 @@
   // STEP("printing heap information")
 
   if (Universe::is_fully_initialized()) {
+    MutexLocker hl(Heap_lock);
     Universe::heap()->print_on_error(st);
     st->cr();
     st->print_cr("Polling page: " INTPTR_FORMAT, p2i(os::get_polling_page()));