diff --git a/common_components/heap/allocator/region_manager.cpp b/common_components/heap/allocator/region_manager.cpp
index feee6f3bf1798f694320fb0196362cdc04b2dd12..f0cd52bb54de5b9cf5fb64c8e30e231d453a9762 100755
--- a/common_components/heap/allocator/region_manager.cpp
+++ b/common_components/heap/allocator/region_manager.cpp
@@ -622,7 +622,8 @@ static void FixRecentRegion(TraceCollector& collector, RegionDesc* region)
     // use fixline to skip new region after fix
     // visit object before fix line to avoid race condition with mutator
     bool isLargeOrFixRegion = region->IsLargeRegion() || region->IsFixedRegion();
-    region->VisitAllObjectsBeforeFix([&collector, region, isLargeOrFixRegion](BaseObject* object) {
+    bool isPinnedRegion = region->IsPinnedRegion();
+    region->VisitAllObjectsBeforeFix([&collector, region, isLargeOrFixRegion, isPinnedRegion](BaseObject* object) {
         if (region->IsNewObjectSinceForward(object)) {
             // handle dead objects in tl-regions for concurrent gc.
             if (collector.IsToVersion(object)) {
@@ -638,6 +639,9 @@ static void FixRecentRegion(TraceCollector& collector, RegionDesc* region)
                 // large/fix region is no need to fillfreeobject.
                 return;
             }
+            if( isPinnedRegion) {
+                return;
+            }
             FillFreeObject(object, RegionSpace::GetAllocSize(*object));
             DLOG(FIX, "skip dead obj %p<%p>(%zu)", object, object->GetTypeInfo(), object->GetSize());
         }
@@ -699,7 +703,8 @@ void RegionManager::FixFixedRegionList(TraceCollector& collector, RegionList& li
 static void FixRegion(TraceCollector& collector, RegionDesc* region)
 {
     bool isLargeRegion = region->IsLargeRegion();
-    region->VisitAllObjects([&collector, isLargeRegion](BaseObject* object) {
+    bool isPinedRegion = region->IsPinnedRegion();
+    region->VisitAllObjects([&collector, isLargeRegion, isPinedRegion](BaseObject* object) {
         if (collector.IsSurvivedObject(object)) {
             collector.FixObjectRefFields(object);
         } else {
@@ -707,6 +712,9 @@ static void FixRegion(TraceCollector& collector, RegionDesc* region)
                 // large region is no need to fillfreeobject.
                 return;
             }
+            if (isPinedRegion) {
+                return;
+            }
             FillFreeObject(object, RegionSpace::GetAllocSize(*object));
             DLOG(FIX, "fix: skip dead obj %p<%p>(%zu)", object, object->GetTypeInfo(), object->GetSize());
         }
@@ -760,14 +768,6 @@ void RegionManager::FixPinnedRegionList(TraceCollector& collector, RegionList& l
     size_t garbageSize = 0;
     RegionDesc* region = list.GetHeadRegion();
     while (region != nullptr) {
-        if (region->GetLiveByteCount() == 0) {
-            RegionDesc* del = region;
-            region = region->GetNextRegion();
-            list.DeleteRegion(del);
-
-            garbageSize += CollectRegion(del);
-            continue;
-        }
         DLOG(REGION, "fix region %p@%#zx+%zu", region, region->GetRegionStart(), region->GetLiveByteCount());
         FixRegion(collector, region);
         region = region->GetNextRegion();
diff --git a/common_components/heap/allocator/region_manager.h b/common_components/heap/allocator/region_manager.h
index 422f941dc87d3a779bd5dff124c23d1837dfa3f3..41cfaf29b7a12fc1b3990ae576218ed7e003416e 100755
--- a/common_components/heap/allocator/region_manager.h
+++ b/common_components/heap/allocator/region_manager.h
@@ -152,7 +152,7 @@ public:
     uintptr_t AllocPinned(size_t size, bool allowGC = true)
     {
         uintptr_t addr = 0;
-        if (!allowGC || size > FIXED_PINNED_THRESHOLD) {
+        if (true) {
             DLOG(ALLOC, "alloc pinned obj 0x%zx(%zu)", addr, size);
             return AllocNextFitPinned(size);
         }
diff --git a/common_components/heap/verification.cpp b/common_components/heap/verification.cpp
index 440ec9715e8fee035e24ca6408754007755f9df0..6fbf6a0097431823532606cea48746db2083f0d6 100755
--- a/common_components/heap/verification.cpp
+++ b/common_components/heap/verification.cpp
@@ -364,15 +364,6 @@ public:
             } else {
                 refObj = field.GetTargetObject();
             }
-            // If it is forwarded, its toVersion must have been traversed during
-            // EnumRoot, so it must have been marked. There is no need for me to
-            // check it, nor to push it into the mark stack.
-            if (refObj->IsForwarded()) {
-                auto toObj = refObj->GetForwardingPointer();
-                bool find = markSet.find(toObj) != markSet.end();
-                CHECKF(find) << "not found to version obj in markSet";
-                return;
-            }
 
             visitor.VerifyRef(obj, field);