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

*** 130,140 ****
    trace_gen_sizes("ps heap rnd",
                    pg_min_size, pg_max_size,
                    og_min_size, og_max_size,
                    yg_min_size, yg_max_size);
  
!   const size_t total_reserved = pg_max_size + og_max_size + yg_max_size;
    char* addr = Universe::preferred_heap_base(total_reserved, Universe::UnscaledNarrowOop);
  
    // The main part of the heap (old gen + young gen) can often use a larger page
    // size than is needed or wanted for the perm gen.  Use the "compound
    // alignment" ReservedSpace ctor to avoid having to use the same page size for
--- 130,145 ----
    trace_gen_sizes("ps heap rnd",
                    pg_min_size, pg_max_size,
                    og_min_size, og_max_size,
                    yg_min_size, yg_max_size);
  
!   size_t total_reserved = 0;
! 
!   total_reserved = add_and_check_overflow(total_reserved, pg_max_size);
!   total_reserved = add_and_check_overflow(total_reserved, og_max_size);
!   total_reserved = add_and_check_overflow(total_reserved, yg_max_size);
! 
    char* addr = Universe::preferred_heap_base(total_reserved, Universe::UnscaledNarrowOop);
  
    // The main part of the heap (old gen + young gen) can often use a larger page
    // size than is needed or wanted for the perm gen.  Use the "compound
    // alignment" ReservedSpace ctor to avoid having to use the same page size for