diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index 2ce9d00e1fb5d683980ac3c178cddd92a7e85e0c..8a240018fac69eb19400c509383bc43dedd5bfac 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -1762,14 +1762,14 @@ void blockDebugShowDataBlocks(const SArray* dataBlocks, const char* flag) {
             break;
           case TSDB_DATA_TYPE_VARCHAR: {
             char*   pData = colDataGetVarData(pColInfoData, j);
-            int32_t dataSize = TMIN(sizeof(pBuf), varDataLen(pData) + 1);
-            memset(pBuf, 0, dataSize);
+            int32_t dataSize = TMIN(sizeof(pBuf) - 1, varDataLen(pData));
+            memset(pBuf, 0, dataSize + 1);
             strncpy(pBuf, varDataVal(pData), dataSize);
             printf(" %15s |", pBuf);
           } break;
           case TSDB_DATA_TYPE_NCHAR: {
             char*   pData = colDataGetVarData(pColInfoData, j);
-            int32_t dataSize = TMIN(sizeof(pBuf), varDataLen(pData) + 1);
+            int32_t dataSize = TMIN(sizeof(pBuf), varDataLen(pData));
             memset(pBuf, 0, dataSize);
             taosUcs4ToMbs((TdUcs4*)varDataVal(pData), dataSize, pBuf);
             printf(" %15s |", pBuf);
@@ -1950,12 +1950,14 @@ int32_t buildSubmitReqFromDataBlock(SSubmitReq** pReq, const SArray* pDataBlocks
             }
             break;
           case TSDB_DATA_TYPE_NCHAR: {
-            tdAppendColValToRow(&rb, PRIMARYKEY_TIMESTAMP_COL_ID + k, TSDB_DATA_TYPE_NCHAR, TD_VTYPE_NORM, var, true,
+            void* data = colDataGetData(pColInfoData, j);
+            tdAppendColValToRow(&rb, PRIMARYKEY_TIMESTAMP_COL_ID + k, TSDB_DATA_TYPE_NCHAR, TD_VTYPE_NORM, data, true,
                                 offset, k);
             break;
           }
           case TSDB_DATA_TYPE_VARCHAR: {  // TSDB_DATA_TYPE_BINARY
-            tdAppendColValToRow(&rb, PRIMARYKEY_TIMESTAMP_COL_ID + k, TSDB_DATA_TYPE_VARCHAR, TD_VTYPE_NORM, var, true,
+            void* data = colDataGetData(pColInfoData, j);
+            tdAppendColValToRow(&rb, PRIMARYKEY_TIMESTAMP_COL_ID + k, TSDB_DATA_TYPE_VARCHAR, TD_VTYPE_NORM, data, true,
                                 offset, k);
             break;
           }
diff --git a/source/dnode/vnode/src/sma/smaEnv.c b/source/dnode/vnode/src/sma/smaEnv.c
index 31e57db5be289af5fc506e76b5942bf713eeb0ab..4b831225bc73725a417f07ce029a5d541e406208 100644
--- a/source/dnode/vnode/src/sma/smaEnv.c
+++ b/source/dnode/vnode/src/sma/smaEnv.c
@@ -295,6 +295,9 @@ static void tdDestroyRSmaStat(void *pRSmaStat) {
         nLoops = 0;
       }
     }
+
+    // step 4: free pStat
+    taosMemoryFreeClear(pStat);
   }
 }
 
@@ -321,12 +324,13 @@ int32_t tdDestroySmaState(SSmaStat *pSmaStat, int8_t smaType) {
       tdDestroyTSmaStat(SMA_TSMA_STAT(pSmaStat));
     } else if (smaType == TSDB_SMA_TYPE_ROLLUP) {
       SRSmaStat *pRSmaStat = SMA_RSMA_STAT(pSmaStat);
+      int32_t    vid = SMA_VID(pRSmaStat->pSma);
+      int64_t    refId = RSMA_REF_ID(pRSmaStat);
       if (taosRemoveRef(smaMgmt.rsetId, RSMA_REF_ID(pRSmaStat)) < 0) {
-        smaError("vgId:%d, remove refId:%" PRIi64 " from rsmaRef:%" PRIi32 " failed since %s", SMA_VID(pRSmaStat->pSma),
-                 RSMA_REF_ID(pRSmaStat), smaMgmt.rsetId, terrstr());
+        smaError("vgId:%d, remove refId:%" PRIi64 " from rsmaRef:%" PRIi32 " failed since %s", vid, refId,
+                 smaMgmt.rsetId, terrstr());
       } else {
-        smaDebug("vgId:%d, remove refId:%" PRIi64 " from rsmaRef:%" PRIi32 " succeed", SMA_VID(pRSmaStat->pSma),
-                 RSMA_REF_ID(pRSmaStat), smaMgmt.rsetId);
+        smaDebug("vgId:%d, remove refId:%" PRIi64 " from rsmaRef:%" PRIi32 " succeed", vid, refId, smaMgmt.rsetId);
       }
     } else {
       ASSERT(0);
diff --git a/source/dnode/vnode/src/sma/smaRollup.c b/source/dnode/vnode/src/sma/smaRollup.c
index 02e488d65add15a48e70ad7cfa0c34e5b59068eb..8d94ca491cc04193ce6dc4b1222d2bf696044023 100644
--- a/source/dnode/vnode/src/sma/smaRollup.c
+++ b/source/dnode/vnode/src/sma/smaRollup.c
@@ -128,7 +128,7 @@ void *tdFreeRSmaInfo(SSma *pSma, SRSmaInfo *pInfo, bool isDeepFree) {
       }
     }
     if (isDeepFree) {
-      taosMemoryFree(pInfo->pTSchema);
+      taosMemoryFreeClear(pInfo->pTSchema);
     }
     taosMemoryFree(pInfo);
   }
@@ -600,7 +600,7 @@ static int32_t tdRSmaFetchAndSubmitResult(SRSmaInfoItem *pItem, STSchema *pTSche
 #endif
       STsdb      *sinkTsdb = (pItem->level == TSDB_RETENTION_L1 ? pSma->pRSmaTsdb[0] : pSma->pRSmaTsdb[1]);
       SSubmitReq *pReq = NULL;
-      // TODO: the schema update should be handled
+      // TODO: the schema update should be handled later(TD-17965)
       if (buildSubmitReqFromDataBlock(&pReq, pResult, pTSchema, SMA_VID(pSma), suid) < 0) {
         smaError("vgId:%d, build submit req for rsma stable %" PRIi64 " level %" PRIi8 " failed since %s",
                  SMA_VID(pSma), suid, pItem->level, terrstr());
@@ -622,7 +622,7 @@ static int32_t tdRSmaFetchAndSubmitResult(SRSmaInfoItem *pItem, STSchema *pTSche
     } else if (terrno == 0) {
       smaDebug("vgId:%d, no rsma %" PRIi8 " data fetched yet", SMA_VID(pSma), pItem->level);
     } else {
-      smaDebug("vgId:%d, no rsma %" PRIi8 " data fetched since %s", SMA_VID(pSma), pItem->level, tstrerror(terrno));
+      smaDebug("vgId:%d, no rsma %" PRIi8 " data fetched since %s", SMA_VID(pSma), pItem->level, terrstr());
     }
   }
 
diff --git a/tests/script/tsim/sync/vnodesnapshot-rsma-test.sim b/tests/script/tsim/sync/vnodesnapshot-rsma-test.sim
index 241781eed103e6c4cbf9971b18513ca79f213b09..c4e0503aa93310a98d4b2d6f55fe7445c2764708 100644
--- a/tests/script/tsim/sync/vnodesnapshot-rsma-test.sim
+++ b/tests/script/tsim/sync/vnodesnapshot-rsma-test.sim
@@ -167,12 +167,26 @@ system sh/exec.sh -n dnode4 -s start
 
 sleep 3000
 
-print =============== query data 
+
+
+
+print =============== query data of level 1
 sql connect
 sql use db
+
 sql select * from ct1 where ts > now - 1d
-print rows: $rows
+print rows of level 1: $rows
 print $data00 $data01 $data02
 if $rows != 100 then
   return -1
-endi
\ No newline at end of file
+endi
+
+print =============== query data of level 2
+sql select * from ct1 where ts > now - 10d
+print rows of level 2: $rows
+print $data00 $data01 $data02
+
+print =============== query data of level 3
+sql select * from ct1
+print rows of level 3: $rows
+print $data00 $data01 $data02