src/hotspot/share/gc/shenandoah/shenandoahTraversalGC.cpp

rev 58087 : 8239354: Shenandoah: minor enhancements to traversal GC

*** 569,580 ****
      preclean_weak_refs();
    }
  }
  
  void ShenandoahTraversalGC::final_traversal_collection() {
-   _heap->make_parsable(true);
- 
    if (!_heap->cancelled_gc()) {
  #if COMPILER2_OR_JVMCI
      DerivedPointerTable::clear();
  #endif
      ShenandoahGCPhase phase_work(ShenandoahPhaseTimings::final_traversal_gc_work);
--- 569,578 ----
*** 604,613 ****
--- 602,616 ----
  
      // No more marking expected
      _heap->set_concurrent_traversal_in_progress(false);
      _heap->mark_complete_marking_context();
  
+     // A rare case, TLAB/GCLAB is initialized from an empty region without
+     // any live data, the region can be trashed and may be uncommitted in later code,
+     // that results the TLAB/GCLAB not usable. Retire them here.
+     _heap->make_parsable(true);
+ 
      _heap->parallel_cleaning(false);
      fixup_roots();
  
      _heap->set_has_forwarded_objects(false);