diff --git a/common_components/heap/allocator/region_desc.h b/common_components/heap/allocator/region_desc.h
index 210dd11c57604bf8b3d9c7860d7a415a9a354166..6c4e9ab5b5fa02a0fd6e311237c25b33ac8ebe73 100755
--- a/common_components/heap/allocator/region_desc.h
+++ b/common_components/heap/allocator/region_desc.h
@@ -853,7 +853,7 @@ public:
         return (GetRegionType()  == RegionType::FIXED_PINNED_REGION) ||
             (GetRegionType()  == RegionType::FULL_FIXED_PINNED_REGION);
     }
-    
+
     bool IsThreadLocalRegion() const
     {
         return GetRegionType() == RegionType::THREAD_LOCAL_REGION ||
@@ -1267,7 +1267,7 @@ public:
             DCHECK_CC(RegionDesc::IsAliveRegionType(regionType_));
             return regionType_;
         }
-        
+
         bool IsInRecentSpace() const
         {
             RegionType type = GetRegionType();
@@ -1369,12 +1369,10 @@ private:
         SetResurrectedRegionFlag(0);
         __atomic_store_n(&metadata.rawPointerObjectCount, 0, __ATOMIC_SEQ_CST);
 #ifdef USE_HWASAN
-        ASAN_UNPOISON_MEMORY_REGION(reinterpret_cast<const volatile void *>(metadata.allocPtr),
-            nUnit * RegionDesc::UNIT_SIZE);
-        uintptr_t pAddr = metadata.allocPtr;
+        uintptr_t pAddr = metadata.regionBase;
         uintptr_t pSize = nUnit * RegionDesc::UNIT_SIZE;
-        LOG_COMMON(DEBUG) << std::hex << "set [" << pAddr <<
-            std::hex << ", " << (pAddr + pSize) << ") unpoisoned\n";
+        ASAN_UNPOISON_MEMORY_REGION(reinterpret_cast<const volatile void *>(pAddr), pSize);
+        LOG_COMMON(DEBUG) << std::hex << "set [" << pAddr << std::hex << ", " << (pAddr + pSize) << ") unpoisoned\n";
 #endif
     }
 
diff --git a/common_components/heap/allocator/region_manager.cpp b/common_components/heap/allocator/region_manager.cpp
index 4f5bdc9c4d1ddf39d8f5ee6c84987b4c3c45c24d..e395d58370dbe33f9235e8e6490a4e9745c43cdd 100755
--- a/common_components/heap/allocator/region_manager.cpp
+++ b/common_components/heap/allocator/region_manager.cpp
@@ -443,12 +443,10 @@ void RegionManager::Initialize(size_t nRegion, uintptr_t regionInfoAddr)
     DLOG(REPORT, "region info @0x%zx+%zu, heap [0x%zx, 0x%zx), unit count %zu", regionInfoAddr, metadataSize,
          regionHeapStart_, regionHeapEnd_, nRegion);
 #ifdef USE_HWASAN
-    ASAN_UNPOISON_MEMORY_REGION(reinterpret_cast<const volatile void *>(regionInfoAddr),
-        metadataSize + nRegion * RegionDesc::UNIT_SIZE);
     const uintptr_t p_addr = regionInfoAddr;
     const uintptr_t p_size = metadataSize + nRegion * RegionDesc::UNIT_SIZE;
-    LOG_COMMON(DEBUG) << std::hex << "set [" << p_addr <<
-                         std::hex << ", " << p_addr + p_size << ") unpoisoned\n";
+    ASAN_UNPOISON_MEMORY_REGION(reinterpret_cast<const volatile void *>(p_addr), p_size);
+    LOG_COMMON(DEBUG) << std::hex << "set [" << p_addr << std::hex << ", " << p_addr + p_size << ") unpoisoned\n";
 #endif
 }
 
@@ -593,12 +591,11 @@ RegionDesc *RegionManager::TakeRegion(size_t num, RegionDesc::UnitRole type, boo
     if (num <= GetInactiveUnitCount()) {
         uintptr_t addr = inactiveZone_.fetch_add(size);
         if (addr < regionHeapEnd_ - size) {
-            region = RegionDesc::InitRegionAt(addr, num, type);
-            size_t idx = region->GetUnitIdx();
 #ifdef _WIN64
-            MemoryMap::CommitMemory(
-                reinterpret_cast<void*>(RegionDesc::GetUnitAddress(idx)), num * RegionDesc::UNIT_SIZE);
+            MemoryMap::CommitMemory(reinterpret_cast<void *>(addr), num * RegionDesc::UNIT_SIZE);
 #endif
+            region = RegionDesc::InitRegionAt(addr, num, type);
+            size_t idx = region->GetUnitIdx();
             (void)idx; // eliminate compilation warning
             DLOG(REGION, "take inactive units [%zu+%zu, %zu) at [0x%zx, 0x%zx)", idx, num, idx + num,
                  RegionDesc::GetUnitAddress(idx), RegionDesc::GetUnitAddress(idx + num));
diff --git a/common_components/heap/collector/region_rset.h b/common_components/heap/collector/region_rset.h
index 80131677162ee83b47e6e52a490b99c2df8d8cac..dc03f3074129685ea03fe3818a917c1f2caca3c4 100644
--- a/common_components/heap/collector/region_rset.h
+++ b/common_components/heap/collector/region_rset.h
@@ -25,7 +25,7 @@ public:
     {
         CHECK_CC(regionSize % CARD_SIZE == 0);
 #ifdef _WIN64
-        void* startAddress = VirtualAlloc(NULL, cardCnt * sizeof(uint64_t), MEM_RESERVE, PAGE_READWRITE);
+        void* startAddress = VirtualAlloc(NULL, cardCnt * sizeof(uint64_t), MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
         if (startAddress == NULL) {
             LOG_COMMON(FATAL) << "failed to initialize HeapBitmapManager";
             UNREACHABLE_CC();