diff -r 13a63d4a3f8d -r 840ad2a9015a src/hotspot/share/runtime/thread.cpp
--- a/src/hotspot/share/runtime/thread.cpp	Wed Sep 12 10:27:03 2018 -0700
+++ b/src/hotspot/share/runtime/thread.cpp	Wed Sep 19 14:47:37 2018 -0700
@@ -61,7 +61,6 @@
 #include "prims/jvm_misc.hpp"
 #include "prims/jvmtiExport.hpp"
 #include "prims/jvmtiThreadState.hpp"
-#include "prims/privilegedStack.hpp"
 #include "runtime/arguments.hpp"
 #include "runtime/atomic.hpp"
 #include "runtime/biasedLocking.hpp"
@@ -1537,7 +1536,6 @@
   _on_thread_list = false;
   set_thread_state(_thread_new);
   _terminated = _not_terminated;
-  _privileged_stack_top = NULL;
   _array_for_gc = NULL;
   _suspend_equivalent = false;
   _in_deopt_handler = 0;
@@ -1971,7 +1969,6 @@
 
   // These things needs to be done while we are still a Java Thread. Make sure that thread
   // is in a consistent state, in case GC happens
-  assert(_privileged_stack_top == NULL, "must be NULL when we get here");
 
   if (active_handles() != NULL) {
     JNIHandleBlock* block = active_handles();
@@ -2821,11 +2818,6 @@
     // Record JavaThread to GC thread
     RememberProcessedThread rpt(this);
 
-    // Traverse the privileged stack
-    if (_privileged_stack_top != NULL) {
-      _privileged_stack_top->oops_do(f);
-    }
-
     // traverse the registered growable array
     if (_array_for_gc != NULL) {
       for (int index = 0; index < _array_for_gc->length(); index++) {