src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp

rev 2755 : 7097516: G1: assert(0<= from_card && from_card<HeapRegion::CardsPerRegion) failed: Must be in range.
Summary: Introduced a version of is_in_reserved() that looks at _orig_end as opposed to _end.
Reviewed-by: tonyp

*** 141,151 ****
  
      HeapRegion* loc_hr = hr();
      // If the test below fails, then this table was reused concurrently
      // with this operation.  This is OK, since the old table was coarsened,
      // and adding a bit to the new table is never incorrect.
!     if (loc_hr->is_in_reserved(from)) {
        size_t hw_offset = pointer_delta((HeapWord*)from, loc_hr->bottom());
        CardIdx_t from_card = (CardIdx_t)
            hw_offset >> (CardTableModRefBS::card_shift - LogHeapWordSize);
  
        assert(0 <= from_card && (size_t)from_card < HeapRegion::CardsPerRegion,
--- 141,155 ----
  
      HeapRegion* loc_hr = hr();
      // If the test below fails, then this table was reused concurrently
      // with this operation.  This is OK, since the old table was coarsened,
      // and adding a bit to the new table is never incorrect.
!     // If the table used to belong to a humongous continues region and is
!     // now reused for the corresponding humongous start region, we need to
!     // make sure that we detect this. Thus, we call is_in_reserved_raw()
!     // instead of just is_in_reserved() here.
!     if (loc_hr->is_in_reserved_raw(from)) {
        size_t hw_offset = pointer_delta((HeapWord*)from, loc_hr->bottom());
        CardIdx_t from_card = (CardIdx_t)
            hw_offset >> (CardTableModRefBS::card_shift - LogHeapWordSize);
  
        assert(0 <= from_card && (size_t)from_card < HeapRegion::CardsPerRegion,