--- old/src/hotspot/share/memory/metaspace.cpp	2017-10-10 12:02:48.238338380 +0900
+++ new/src/hotspot/share/memory/metaspace.cpp	2017-10-10 12:02:47.765328363 +0900
@@ -3324,6 +3324,17 @@
 
   CompressedClassSpaceSize = align_down_bounded(CompressedClassSpaceSize, _reserve_alignment);
   set_compressed_class_space_size(CompressedClassSpaceSize);
+
+  size_t min_metaspace_sz = calculate_min_metaspace_size();
+  if (!UseCompressedClassPointers && (min_metaspace_sz >= MaxMetaspaceSize)) {
+    FLAG_SET_ERGO(size_t, InitialBootClassLoaderMetaspaceSize,
+                                                        min_metaspace_sz);
+  }
+
+}
+
+size_t Metaspace::calculate_min_metaspace_size() {
+  return InitialBootClassLoaderMetaspaceSize + (MediumChunk * HeapWordSize);
 }
 
 void Metaspace::global_initialize() {