--- old/src/share/vm/gc/g1/g1RemSet.cpp	2016-09-29 18:05:37.083244791 -0400
+++ new/src/share/vm/gc/g1/g1RemSet.cpp	2016-09-29 18:05:36.979244276 -0400
@@ -669,30 +669,10 @@
   // filtering when it has been determined that there has been an actual
   // allocation in this region and making it safe to check the young type.
 
-  bool card_processed =
-    r->oops_on_card_seq_iterate_careful(dirtyRegion,
-                                        &filter_then_update_rs_oop_cl,
-                                        card_ptr);
-
-  // If unable to process the card then we encountered an unparsable
-  // part of the heap (e.g. a partially allocated object).  Redirty
-  // and re-enqueue: if we put off the card until a GC pause, then the
-  // allocation will have completed.
-  if (!card_processed) {
-    assert(!_g1->is_gc_active(), "Unparsable heap during GC");
-    // The card might have gotten re-dirtied and re-enqueued while we
-    // worked.  (In fact, it's pretty likely.)
-    if (*card_ptr != CardTableModRefBS::dirty_card_val()) {
-      *card_ptr = CardTableModRefBS::dirty_card_val();
-      MutexLockerEx x(Shared_DirtyCardQ_lock,
-                      Mutex::_no_safepoint_check_flag);
-      DirtyCardQueue* sdcq =
-        JavaThread::dirty_card_queue_set().shared_dirty_card_queue();
-      sdcq->enqueue(card_ptr);
-    }
-  } else {
-    _conc_refine_cards++;
-  }
+  r->oops_on_card_seq_iterate_careful(dirtyRegion,
+                                      &filter_then_update_rs_oop_cl,
+                                      card_ptr);
+  _conc_refine_cards++;
 
   // This gets set to true if the card being refined has
   // references that point into the collection set.