les/handler: avoid lookup missing state

3675b854 · Martin Holst Swende · 50e3795e · 3675b854
Unverified Commit 3675b854 authored Jun 12, 2019 by Martin Holst Swende
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handler.go les/handler.go +4 -0

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--- a/les/handler.go
+++ b/les/handler.go
@@ -868,6 +868,10 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 						}
 						root = header.Root
 					}
+					// If a header lookup failed (non existent), ignore subsequent requests for the same header
+					if root == (common.Hash{}) {
+						continue
+					}
 					// Open the account or storage trie for the request
 					statedb := pm.blockchain.StateCache()