1.1 --- a/src/share/vm/gc_implementation/g1/concurrentMark.hpp Wed May 14 13:32:44 2014 +0200
1.2 +++ b/src/share/vm/gc_implementation/g1/concurrentMark.hpp Wed May 14 14:32:23 2014 +0200
1.3 @@ -542,8 +542,12 @@
1.4 // frequently.
1.5 HeapRegion* claim_region(uint worker_id);
1.6
1.7 - // It determines whether we've run out of regions to scan.
1.8 - bool out_of_regions() { return _finger == _heap_end; }
1.9 + // It determines whether we've run out of regions to scan. Note that
1.10 + // the finger can point past the heap end in case the heap was expanded
1.11 + // to satisfy an allocation without doing a GC. This is fine, because all
1.12 + // objects in those regions will be considered live anyway because of
1.13 + // SATB guarantees (i.e. their TAMS will be equal to bottom).
1.14 + bool out_of_regions() { return _finger >= _heap_end; }
1.15
1.16 // Returns the task with the given id
1.17 CMTask* task(int id) {
