--- old/src/share/vm/gc_implementation/g1/g1HotCardCache.cpp	2014-10-09 13:31:00.257513154 +0200
+++ new/src/share/vm/gc_implementation/g1/g1HotCardCache.cpp	2014-10-09 13:31:00.161516508 +0200
@@ -43,6 +43,7 @@
     _hot_cache_idx = 0;
 
     // For refining the cards in the hot cache in parallel
+    _hot_cache_par_chunk_size = ClaimChunkSize;
     _hot_cache_par_claimed_idx = 0;
 
     _card_counts.initialize(card_counts_storage);
@@ -98,7 +99,7 @@
   int start_idx;
 
   while ((start_idx = _hot_cache_par_claimed_idx) < _n_hot) { // read once
-    int end_idx = start_idx + ClaimChunkSize;
+    int end_idx = start_idx + _hot_cache_par_chunk_size;
 
     if (start_idx ==
         Atomic::cmpxchg(end_idx, &_hot_cache_par_claimed_idx, start_idx)) {