From 303873cf7976415e35997221a1a91133fe4a2d40 Mon Sep 17 00:00:00 2001
From: JamesRay <66258875@qq.com>
Date: Mon, 4 Nov 2019 18:20:05 +0800
Subject: [PATCH] log error

---
 core/blockchain.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/blockchain.go b/core/blockchain.go
index 90e26b5b39..d1049dc9a0 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -402,6 +402,7 @@ func (bc *BlockChain) SetHead(head uint64) error {
 			} else {
 				err := bc.repair(&newHeadBlock)
 				if err != nil {
+					log.Error("Failed to set head", "head", head, "err", err)
 					// Rewound block missing, rolled back to genesis
 					newHeadBlock = bc.genesisBlock
 				}