diff -r 439a147b2c0c -r f080b08daace src/hotspot/share/runtime/vmOperations.hpp
--- a/src/hotspot/share/runtime/vmOperations.hpp	Wed Nov 13 14:08:04 2019 -0800
+++ b/src/hotspot/share/runtime/vmOperations.hpp	Wed Nov 13 18:00:30 2019 -0500
@@ -66,6 +66,7 @@
   template(G1CollectForAllocation)                \
   template(G1CollectFull)                         \
   template(G1Concurrent)                          \
+  template(G1TryInitiateConcMark)                 \
   template(ZMarkStart)                            \
   template(ZMarkEnd)                              \
   template(ZRelocateStart)                        \