diff options
| -rw-r--r-- | core/blockchain.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/core/blockchain.go b/core/blockchain.go index 3a9caf01e..bcd53d498 100644 --- a/core/blockchain.go +++ b/core/blockchain.go @@ -445,7 +445,11 @@ func (bc *BlockChain) repair(head **types.Block) error { return nil } // Otherwise rewind one block and recheck state availability there - (*head) = bc.GetBlock((*head).ParentHash(), (*head).NumberU64()-1) + block := bc.GetBlock((*head).ParentHash(), (*head).NumberU64()-1) + if block == nil { + return fmt.Errorf("missing block %d [%x]", (*head).NumberU64()-1, (*head).ParentHash()) + } + (*head) = block } } |