src/share/vm/gc/g1/g1RegionToSpaceMapper.cpp

*** 111,121 ****
      _commit_map.resize(rs.size() * commit_factor / alloc_granularity, /* in_resource_area */ false);
    }
  
    virtual void commit_regions(uint start_idx, size_t num_regions) {
      for (uint i = start_idx; i < start_idx + num_regions; i++) {
!       assert(!_commit_map.at(i), err_msg("Trying to commit storage at region %u that is already committed", i));
        size_t idx = region_idx_to_page_idx(i);
        uint old_refcount = _refcounts.get_by_index(idx);
        bool zero_filled = false;
        if (old_refcount == 0) {
          zero_filled = _storage.commit(idx, 1);
--- 111,121 ----
      _commit_map.resize(rs.size() * commit_factor / alloc_granularity, /* in_resource_area */ false);
    }
  
    virtual void commit_regions(uint start_idx, size_t num_regions) {
      for (uint i = start_idx; i < start_idx + num_regions; i++) {
!       assert(!_commit_map.at(i), "Trying to commit storage at region %u that is already committed", i);
        size_t idx = region_idx_to_page_idx(i);
        uint old_refcount = _refcounts.get_by_index(idx);
        bool zero_filled = false;
        if (old_refcount == 0) {
          zero_filled = _storage.commit(idx, 1);
*** 126,136 ****
      }
    }
  
    virtual void uncommit_regions(uint start_idx, size_t num_regions) {
      for (uint i = start_idx; i < start_idx + num_regions; i++) {
!       assert(_commit_map.at(i), err_msg("Trying to uncommit storage at region %u that is not committed", i));
        size_t idx = region_idx_to_page_idx(i);
        uint old_refcount = _refcounts.get_by_index(idx);
        assert(old_refcount > 0, "must be");
        if (old_refcount == 1) {
          _storage.uncommit(idx, 1);
--- 126,136 ----
      }
    }
  
    virtual void uncommit_regions(uint start_idx, size_t num_regions) {
      for (uint i = start_idx; i < start_idx + num_regions; i++) {
!       assert(_commit_map.at(i), "Trying to uncommit storage at region %u that is not committed", i);
        size_t idx = region_idx_to_page_idx(i);
        uint old_refcount = _refcounts.get_by_index(idx);
        assert(old_refcount > 0, "must be");
        if (old_refcount == 1) {
          _storage.uncommit(idx, 1);