From 167e58578ad176dc427c7b7cccbb597a5c868310 Mon Sep 17 00:00:00 2001
From: Cary Xu <klxu@taosdata.com>
Date: Mon, 29 Aug 2022 14:53:13 +0800
Subject: [PATCH] enh: add check for tpagebuf

---
 source/libs/executor/src/tsimplehash.c | 6 +-----
 source/util/src/tpagedbuf.c            | 1 +
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/source/libs/executor/src/tsimplehash.c b/source/libs/executor/src/tsimplehash.c
index 8cd376e092..84b615af7a 100644
--- a/source/libs/executor/src/tsimplehash.c
+++ b/source/libs/executor/src/tsimplehash.c
@@ -295,11 +295,7 @@ int32_t tSimpleHashIterateRemove(SSHashObj *pHashObj, const void *key, size_t ke
       }
 
       if (*pIter == (void *)GET_SHASH_NODE_DATA(pNode)) {
-        if (!pPrev) {
-          *pIter = NULL;
-        } else {
-          *pIter = GET_SHASH_NODE_DATA(pPrev);
-        }
+        *pIter = pPrev ? GET_SHASH_NODE_DATA(pPrev) : NULL;
       }
 
       FREE_HASH_NODE(pNode);
diff --git a/source/util/src/tpagedbuf.c b/source/util/src/tpagedbuf.c
index 4d5532b9a6..0c30cc1003 100644
--- a/source/util/src/tpagedbuf.c
+++ b/source/util/src/tpagedbuf.c
@@ -465,6 +465,7 @@ void* getBufPage(SDiskbasedBuf* pBuf, int32_t id) {
     // set the ptr to the new SPageInfo
     ((void**)((*pi)->pData))[0] = (*pi);
 
+    assert(listNEles(pBuf->lruList) < pBuf->inMemPages && pBuf->inMemPages > 0);
     lruListPushFront(pBuf->lruList, *pi);
     (*pi)->used = true;