src/share/vm/runtime/virtualspace.cpp

*** 542,555 ****
    char* aligned_upper_new_high =
      (char*) round_to((intptr_t) unaligned_upper_new_high, upper_alignment());
  
    // Determine which regions need to grow in this expand_by call.
    // If you are growing in the lower region, high() must be in that
!   // region so calcuate the size based on high().  For the middle and
    // upper regions, determine the starting point of growth based on the
    // location of high().  By getting the MAX of the region's low address
!   // (or the prevoius region's high address) and high(), we can tell if it
    // is an intra or inter region growth.
    size_t lower_needs = 0;
    if (aligned_lower_new_high > lower_high()) {
      lower_needs =
        pointer_delta(aligned_lower_new_high, lower_high(), sizeof(char));
--- 542,555 ----
    char* aligned_upper_new_high =
      (char*) round_to((intptr_t) unaligned_upper_new_high, upper_alignment());
  
    // Determine which regions need to grow in this expand_by call.
    // If you are growing in the lower region, high() must be in that
!   // region so calculate the size based on high().  For the middle and
    // upper regions, determine the starting point of growth based on the
    // location of high().  By getting the MAX of the region's low address
!   // (or the previous region's high address) and high(), we can tell if it
    // is an intra or inter region growth.
    size_t lower_needs = 0;
    if (aligned_lower_new_high > lower_high()) {
      lower_needs =
        pointer_delta(aligned_lower_new_high, lower_high(), sizeof(char));