diff --git a/kernel/model/transaction.go b/kernel/model/transaction.go
index aad8d7b51..60866ef1c 100644
--- a/kernel/model/transaction.go
+++ b/kernel/model/transaction.go
@@ -1231,6 +1231,8 @@ func AutoFixIndex() {
 var autoFixLock = sync.Mutex{}
 
 func autoFixIndex() {
+	defer logging.Recover()
+
 	if util.IsMutexLocked(&autoFixLock) || isFullReindexing {
 		return
 	}
diff --git a/kernel/treenode/blocktree.go b/kernel/treenode/blocktree.go
index cbf59c79f..f40064ae8 100644
--- a/kernel/treenode/blocktree.go
+++ b/kernel/treenode/blocktree.go
@@ -117,15 +117,14 @@ func CeilBlockCount(count int) int {
 }
 
 func GetNotExistPaths(boxID string, paths []string) (ret []string) {
-	blockTreesLock.Lock()
-	defer blockTreesLock.Unlock()
+	tmp := blockTrees
 
 	pathsMap := map[string]bool{}
 	for _, path := range paths {
 		pathsMap[path] = true
 	}
 
-	for _, blockTree := range blockTrees {
+	for _, blockTree := range tmp {
 		if blockTree.BoxID != boxID {
 			continue
 		}