src/share/vm/runtime/globals.hpp

*** 2339,2348 ****
--- 2339,2356 ----
            "Verify memory system after GC")                                  \
                                                                              \
    diagnostic(bool, VerifyDuringGC, false,                                   \
            "Verify memory system during GC (between phases)")                \
                                                                              \
+   diagnostic(ccstrlist, VerifySubSet, "",                                   \
+           "Memory sub-systems to verify when Verify*GC flag(s)              \
+            are enabled. One or more sub-systems can be specified            \
+            in a comma separated string. Sub-systems are:                    \
+            threads, heap, symbol_table, string_table, codecache,            \
+            dictionary, classloader_data_graph, metaspace, jni_handles,      \
+            c-heap, codecache_oops")                                         \
+                                                                             \
    diagnostic(bool, GCParallelVerificationEnabled, true,                     \
            "Enable parallel memory system verification")                     \
                                                                              \
    diagnostic(bool, DeferInitialCardMark, false,                             \
            "When +ReduceInitialCardMarks, explicitly defer any that "        \