--- old/src/hotspot/share/memory/metaspaceShared.cpp	2018-03-07 11:03:34.354092807 -0800
+++ new/src/hotspot/share/memory/metaspaceShared.cpp	2018-03-07 11:03:34.115070280 -0800
@@ -1019,6 +1019,7 @@
   VMOp_Type type() const { return VMOp_PopulateDumpSharedSpace; }
   void doit();   // outline because gdb sucks
   static void write_region(FileMapInfo* mapinfo, int region, DumpRegion* space, bool read_only,  bool allow_exec);
+  bool allow_nested_vm_operations() const { return true; }
 }; // class VM_PopulateDumpSharedSpace
 
 class SortedSymbolClosure: public SymbolClosure {