diff -Naur ceph-13.2.5-orig/src/common/ceph_context.h ceph-13.2.5/src/common/ceph_context.h
--- ceph-13.2.5-orig/src/common/ceph_context.h	2019-03-12 17:48:03.000000000 +0100
+++ ceph-13.2.5/src/common/ceph_context.h	2019-04-16 16:26:29.000000000 +0200
@@ -144,7 +144,7 @@
   void do_command(std::string_view command, const cmdmap_t& cmdmap,
 		  std::string_view format, ceph::bufferlist *out);
 
-  static constexpr std::size_t largest_singleton = sizeof(void*) * 72;
+  static constexpr std::size_t largest_singleton = sizeof(void*) * 128;
 
   template<typename T, typename... Args>
   T& lookup_or_create_singleton_object(std::string_view name,