From 65c0ea433a8d8a47f09eb43fff758538d1ac11f6 Mon Sep 17 00:00:00 2001
From: healthykim <bsbs8645@snu.ac.kr>
Date: Mon, 29 Jun 2026 20:16:34 +0200
Subject: [PATCH] core/rawdb: add resetTo() for empty table

---
 core/rawdb/freezer_table.go | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/core/rawdb/freezer_table.go b/core/rawdb/freezer_table.go
index c770e89989..bca505925f 100644
--- a/core/rawdb/freezer_table.go
+++ b/core/rawdb/freezer_table.go
@@ -611,9 +611,17 @@ func (t *freezerTable) truncateHead(items uint64) error {
 	if existing <= items {
 		return nil
 	}
-	if items < t.itemHidden.Load() {
-		return errors.New("truncation below tail")
+
+	hidden := t.itemHidden.Load()
+
+	if items < hidden {
+		if existing == hidden {
+			// Empty table means that it is newly added. Its tail would be
+			// at the head, so we have to align the table down to the new head.
+			return t.resetTo(items)
+		}
 	}
+
 	// We need to truncate, save the old size for metrics tracking
 	oldSize, err := t.sizeNolock()
 	if err != nil {