*** old/src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.cpp	Fri Oct 25 15:32:39 2013
--- new/src/share/vm/gc_implementation/parallelScavenge/asPSOldGen.cpp	Fri Oct 25 15:32:39 2013

*** 89,110 ****
--- 89,110 ----
    assert(virtual_space()->is_aligned(gen_size_limit()), "not aligned");
    assert(gen_size_limit() >= virtual_space()->committed_size(), "bad gen size");
  
    ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
    size_t result =  gen_size_limit() - virtual_space()->committed_size();
!   size_t result_aligned = align_size_down(result, heap->old_gen_alignment());
!   size_t result_aligned = align_size_down(result, heap->generation_alignment());
    return result_aligned;
  }
  
  size_t ASPSOldGen::available_for_contraction() {
    size_t uncommitted_bytes = virtual_space()->uncommitted_size();
    if (uncommitted_bytes != 0) {
      return uncommitted_bytes;
    }
  
    ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
!   const size_t gen_alignment = heap->old_gen_alignment();
!   const size_t gen_alignment = heap->generation_alignment();
    PSAdaptiveSizePolicy* policy = heap->size_policy();
    const size_t working_size =
      used_in_bytes() + (size_t) policy->avg_promoted()->padded_average();
    const size_t working_aligned = align_size_up(working_size, gen_alignment);
    const size_t working_or_min = MAX2(working_aligned, min_gen_size());