src/share/vm/memory/metaspace.cpp

*** 2143,2152 ****
--- 2143,2153 ----
      cur->container()->dec_container_count();
      // Capture the next link before it is changed
      // by the call to return_chunk_at_head();
      Metachunk* next = cur->next();
      DEBUG_ONLY(cur->set_is_tagged_free(true);)
+     NOT_PRODUCT(cur->mangle(badMetaWordVal);)
      list->return_chunk_at_head(cur);
      cur = next;
    }
  }
  
*** 2169,2181 ****
      log.trace("~SpaceManager(): " PTR_FORMAT, p2i(this));
      ResourceMark rm;
      locked_print_chunks_in_use_on(log.trace_stream());
    }
  
-   // Do not mangle freed Metachunks.  The chunk size inside Metachunks
-   // is during the freeing of a VirtualSpaceNodes.
- 
    // Have to update before the chunks_in_use lists are emptied
    // below.
    chunk_manager()->inc_free_chunks_total(allocated_chunks_words(),
                                           sum_count_in_chunks_in_use());
  
--- 2170,2179 ----
*** 2204,2216 ****
    log.trace("Humongous chunk dictionary: ");
    // Humongous chunks are never the current chunk.
    Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
  
    while (humongous_chunks != NULL) {
! #ifdef ASSERT
!     humongous_chunks->set_is_tagged_free(true);
! #endif
      log.trace(PTR_FORMAT " (" SIZE_FORMAT ") ", p2i(humongous_chunks), humongous_chunks->word_size());
      assert(humongous_chunks->word_size() == (size_t)
             align_size_up(humongous_chunks->word_size(),
                               smallest_chunk_size()),
             "Humongous chunk size is wrong: word size " SIZE_FORMAT
--- 2202,2213 ----
    log.trace("Humongous chunk dictionary: ");
    // Humongous chunks are never the current chunk.
    Metachunk* humongous_chunks = chunks_in_use(HumongousIndex);
  
    while (humongous_chunks != NULL) {
!     DEBUG_ONLY(humongous_chunks->set_is_tagged_free(true);)
!     NOT_PRODUCT(humongous_chunks->mangle(badMetaWordVal);)
      log.trace(PTR_FORMAT " (" SIZE_FORMAT ") ", p2i(humongous_chunks), humongous_chunks->word_size());
      assert(humongous_chunks->word_size() == (size_t)
             align_size_up(humongous_chunks->word_size(),
                               smallest_chunk_size()),
             "Humongous chunk size is wrong: word size " SIZE_FORMAT