src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp

*** 803,813 ****
  
  HeapWord* ParallelScavengeHeap::block_start(const void* addr) const {
    if (young_gen()->is_in_reserved(addr)) {
      assert(young_gen()->is_in(addr),
             "addr should be in allocated part of young gen");
!     if (Debugging)  return NULL;  // called from find() in debug.cpp
      Unimplemented();
    } else if (old_gen()->is_in_reserved(addr)) {
      assert(old_gen()->is_in(addr),
             "addr should be in allocated part of old gen");
      return old_gen()->start_array()->object_start((HeapWord*)addr);
--- 803,814 ----
  
  HeapWord* ParallelScavengeHeap::block_start(const void* addr) const {
    if (young_gen()->is_in_reserved(addr)) {
      assert(young_gen()->is_in(addr),
             "addr should be in allocated part of young gen");
!     // called from os::print_location by find or VMError
!     if (Debugging || VMError::fatal_error_in_progress())  return NULL;
      Unimplemented();
    } else if (old_gen()->is_in_reserved(addr)) {
      assert(old_gen()->is_in(addr),
             "addr should be in allocated part of old gen");
      return old_gen()->start_array()->object_start((HeapWord*)addr);