diff --git a/codec/encoder/core/src/encoder_ext.cpp b/codec/encoder/core/src/encoder_ext.cpp
index 226fc511..2e70bf69 100644
--- a/codec/encoder/core/src/encoder_ext.cpp
+++ b/codec/encoder/core/src/encoder_ext.cpp
@@ -1254,7 +1254,7 @@ int32_t RequestMemoryVaaScreen (SVAAFrameInfo* pVaa,  CMemoryAlign* pMa,  const
 void ReleaseMemoryVaaScreen (SVAAFrameInfo* pVaa,  CMemoryAlign* pMa, const int32_t iNumRef) {
   SVAAFrameInfoExt* pVaaExt = static_cast<SVAAFrameInfoExt*> (pVaa);
   if (pVaaExt && pMa && pVaaExt->pVaaBlockStaticIdc[0]) {
-    pMa->WelsFree (pVaaExt->pVaaBlockStaticIdc[0], "pVaa->pVaaBlockStaticIdc");
+    pMa->WelsFree (pVaaExt->pVaaBlockStaticIdc[0], "pVaa->pVaaBlockStaticIdc[0]");
 
     for (int32_t idx = 0; idx < iNumRef; idx++) {
       pVaaExt->pVaaBlockStaticIdc[idx] = NULL;
@@ -1470,7 +1470,7 @@ int32_t RequestMemorySvc (sWelsEncCtx** ppCtx) {
   }
 
   (*ppCtx)->pVaa->pVaaBackgroundMbFlag = (int8_t*)pMa->WelsMallocz (iCountMaxMbNum * sizeof (int8_t),
-                                         "pVaa->vaa_skip_mb_flag");
+                                         "pVaa->pVaaBackgroundMbFlag");
   WELS_VERIFY_RETURN_PROC_IF (1, (NULL == (*ppCtx)->pVaa->pVaaBackgroundMbFlag), FreeMemorySvc (ppCtx))
 
   (*ppCtx)->pVaa->sVaaCalcInfo.pSad8x8 = static_cast<int32_t (*)[4]>
@@ -1488,10 +1488,10 @@ int32_t RequestMemorySvc (sWelsEncCtx** ppCtx) {
 
   if ((*ppCtx)->pSvcParam->bEnableBackgroundDetection) { //BGD control
     (*ppCtx)->pVaa->sVaaCalcInfo.pSumOfDiff8x8 = static_cast<int32_t (*)[4]>
-        (pMa->WelsMallocz (iCountMaxMbNum * 4 * sizeof (int32_t), "pVaa->sVaaCalcInfo.sd_16x16"));
+        (pMa->WelsMallocz (iCountMaxMbNum * 4 * sizeof (int32_t), "pVaa->sVaaCalcInfo.pSumOfDiff8x8"));
     WELS_VERIFY_RETURN_PROC_IF (1, (NULL == (*ppCtx)->pVaa->sVaaCalcInfo.pSumOfDiff8x8), FreeMemorySvc (ppCtx))
     (*ppCtx)->pVaa->sVaaCalcInfo.pMad8x8 = static_cast<uint8_t (*)[4]>
-                                           (pMa->WelsMallocz (iCountMaxMbNum * 4 * sizeof (uint8_t), "pVaa->sVaaCalcInfo.mad_16x16"));
+                                           (pMa->WelsMallocz (iCountMaxMbNum * 4 * sizeof (uint8_t), "pVaa->sVaaCalcInfo.pMad8x8"));
     WELS_VERIFY_RETURN_PROC_IF (1, (NULL == (*ppCtx)->pVaa->sVaaCalcInfo.pMad8x8), FreeMemorySvc (ppCtx))
   }
 
diff --git a/codec/encoder/core/src/picture_handle.cpp b/codec/encoder/core/src/picture_handle.cpp
index 91246d12..0b7d8207 100644
--- a/codec/encoder/core/src/picture_handle.cpp
+++ b/codec/encoder/core/src/picture_handle.cpp
@@ -98,7 +98,7 @@ SPicture* AllocPicture (CMemoryAlign* pMa, const int32_t kiWidth , const int32_t
     pPic->uiRefMbType	= (uint32_t*)pMa->WelsMallocz (kuiCountMbNum * sizeof (uint32_t), "pPic->uiRefMbType");
     WELS_VERIFY_RETURN_PROC_IF (NULL, NULL == pPic->uiRefMbType, FreePicture (pMa, &pPic));
 
-    pPic->pRefMbQp	= (uint8_t*)pMa->WelsMallocz (kuiCountMbNum * sizeof (uint8_t), "pPic->bgd_mb_qp");
+    pPic->pRefMbQp	= (uint8_t*)pMa->WelsMallocz (kuiCountMbNum * sizeof (uint8_t), "pPic->pRefMbQp");
     WELS_VERIFY_RETURN_PROC_IF (NULL, NULL == pPic->pRefMbQp, FreePicture (pMa, &pPic));
 
     pPic->sMvList           = static_cast<SMVUnitXY*> (pMa->WelsMallocz (kuiCountMbNum * sizeof (SMVUnitXY),
@@ -152,11 +152,11 @@ void FreePicture (CMemoryAlign* pMa, SPicture** ppPic) {
     pPic->iMarkFrameNum		= -1;
 
     if (pPic->uiRefMbType) {
-      pMa->WelsFree (pPic->uiRefMbType, "pPic->bgd_mb_type");
+      pMa->WelsFree (pPic->uiRefMbType, "pPic->uiRefMbType");
       pPic->uiRefMbType = NULL;
     }
     if (pPic->pRefMbQp) {
-      pMa->WelsFree (pPic->pRefMbQp, "pPic->bgd_mb_qp");
+      pMa->WelsFree (pPic->pRefMbQp, "pPic->pRefMbQp");
       pPic->pRefMbQp = NULL;
     }
 
diff --git a/codec/encoder/core/src/ratectl.cpp b/codec/encoder/core/src/ratectl.cpp
index d679443d..d96e5813 100644
--- a/codec/encoder/core/src/ratectl.cpp
+++ b/codec/encoder/core/src/ratectl.cpp
@@ -70,7 +70,7 @@ void RcInitLayerMemory (SWelsSvcRc* pWelsSvcRc, CMemoryAlign* pMA, const int32_t
   const int32_t kiGomSizeD			= kiGomSize * sizeof (double);
   const int32_t kiGomSizeI			= kiGomSize * sizeof (int32_t);
   const int32_t kiLayerRcSize			= kiGomSizeD + (kiGomSizeI * 3) +  sizeof (SRCTemporal) * kiMaxTl;
-  uint8_t* pBaseMem					= (uint8_t*)pMA->WelsMalloc (kiLayerRcSize, "rc_layer_memory");
+  uint8_t* pBaseMem					= (uint8_t*)pMA->WelsMalloc (kiLayerRcSize, "pWelsSvcRc->pTemporalOverRc");
 
   if (NULL == pBaseMem)
     return;
@@ -94,7 +94,7 @@ void RcFreeLayerMemory (SWelsSvcRc* pWelsSvcRc, CMemoryAlign* pMA) {
     pWelsSvcRc->pSlicingOverRc = NULL;
   }
   if (pWelsSvcRc != NULL && pWelsSvcRc->pTemporalOverRc != NULL) {
-    pMA->WelsFree (pWelsSvcRc->pTemporalOverRc, "rc_layer_memory");
+    pMA->WelsFree (pWelsSvcRc->pTemporalOverRc, "pWelsSvcRc->pTemporalOverRc");
     pWelsSvcRc->pTemporalOverRc         = NULL;
     pWelsSvcRc->pGomComplexity			= NULL;
     pWelsSvcRc->pGomForegroundBlockNum	= NULL;