Merge pull request ethereum#230 from ngtuna/double-validation-fix-1

double validation bugfix
ngtuna · Oct 23, 2018 · 3b4106f · 3b4106f
2 parents ac6e3fd + 59f3d3a
commit 3b4106f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/eth/backend.go b/eth/backend.go
@@ -191,7 +191,8 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 
 		// Hook double validation
 		doubleValidateHook := func(block *types.Block) error {
-			snap, err := c.GetSnapshot(eth.blockchain, block.Header())
+			parentBlk := eth.blockchain.GetBlockByHash(block.ParentHash())
+			snap, err := c.GetSnapshot(eth.blockchain, parentBlk.Header())
 			if err != nil {
 				if err == consensus.ErrUnknownAncestor {
 					log.Warn("Block chain forked.", "error", err)