From 84f46cf63417c8af49efbbabfe768c5e89e0637d Mon Sep 17 00:00:00 2001
From: guagualvcha <296179868@qq.com>
Date: Tue, 12 Oct 2021 11:14:53 +0800
Subject: [PATCH] fix concurrent write seen of subfetcher

---
 core/state/trie_prefetcher.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/state/trie_prefetcher.go b/core/state/trie_prefetcher.go
index 116302001d..ddecd7a202 100644
--- a/core/state/trie_prefetcher.go
+++ b/core/state/trie_prefetcher.go
@@ -105,7 +105,7 @@ func (p *triePrefetcher) abortLoop() {
 func (p *triePrefetcher) close() {
 	for _, fetcher := range p.fetchers {
 		p.abortChan <- fetcher // safe to do multiple times
-
+		<-fetcher.term
 		if metrics.Enabled {
 			if fetcher.root == p.root {
 				p.accountLoadMeter.Mark(int64(len(fetcher.seen)))