diff -r c4c768305a8f -r 335b388c4b28 src/share/vm/memory/metablock.cpp
--- a/src/share/vm/memory/metablock.cpp	Thu Sep 12 10:15:54 2013 +0200
+++ b/src/share/vm/memory/metablock.cpp	Fri Sep 13 22:21:06 2013 +0200
@@ -50,13 +50,6 @@
 // Chunks, change Chunks so that they can be allocated out of a VirtualSpace.
 size_t Metablock::_min_block_byte_size = sizeof(Metablock);
 
-#ifdef ASSERT
-size_t Metablock::_overhead =
-  Chunk::aligned_overhead_size(sizeof(Metablock)) / BytesPerWord;
-#else
-size_t Metablock::_overhead = 0;
-#endif
-
 // New blocks returned by the Metaspace are zero initialized.
 // We should fix the constructors to not assume this instead.
 Metablock* Metablock::initialize(MetaWord* p, size_t word_size) {