--- old/src/hotspot/share/runtime/thread.cpp	2018-05-31 15:33:14.167573327 +0200
+++ new/src/hotspot/share/runtime/thread.cpp	2018-05-31 15:33:13.618582739 +0200
@@ -308,7 +308,9 @@
 #endif // ASSERT
 
   _oom_during_evac = 0;
+#ifdef INCLUDE_ALL_GCS
   _gclab = NULL;
+#endif
 }
 
 void Thread::set_oom_during_evac(bool oom) {