--- old/src/share/vm/gc_implementation/shenandoah/shenandoahPassiveMode.cpp	2019-11-11 16:10:02.709342569 +0100
+++ new/src/share/vm/gc_implementation/shenandoah/shenandoahPassiveMode.cpp	2019-11-11 16:10:02.630342573 +0100
@@ -42,6 +42,8 @@
   // Disable known barriers by default.
   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahLoadRefBarrier);
   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahSATBBarrier);
+  SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahKeepAliveBarrier);
+  SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahStoreValEnqueueBarrier);
   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahCASBarrier);
   SHENANDOAH_ERGO_DISABLE_FLAG(ShenandoahCloneBarrier);