add debug log for new block announcement

core/blockchain.go

@@ -1599,6 +1599,8 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) {
 	bc.blockProcFeed.Send(true)
 	defer bc.blockProcFeed.Send(false)
 
+	log.Info("[DEBUG] Inserting chain", "first number", chain[0].Number(), "first hash", chain[0].Hash(), "last number", chain[len(chain)-1].Number(), "last hash", chain[len(chain)-1].Hash())
+
 	// Do a sanity check that the provided chain is actually ordered and linked.
 	for i := 1; i < len(chain); i++ {
 		block, prev := chain[i], chain[i-1]

eth/handler_eth.go

@@ -26,6 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth/protocols/eth"
+	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/p2p/enode"
 )
 
@@ -103,6 +104,7 @@ func (h *ethHandler) handleBlockAnnounces(peer *eth.Peer, hashes []common.Hash,
 			unknownNumbers = append(unknownNumbers, numbers[i])
 		}
 	}
+	log.Info("[DEBUG] In handle block announcement", "len", len(unknownHashes))
 	for i := 0; i < len(unknownHashes); i++ {
 		h.blockFetcher.Notify(peer.ID(), unknownHashes[i], unknownNumbers[i], time.Now(), peer.RequestOneHeader, peer.RequestBodies)
 	}

eth/protocols/eth/handlers.go

@@ -317,8 +317,10 @@ func handleNewBlockhashes(backend Backend, msg Decoder, peer *Peer) error {
 	if err := msg.Decode(ann); err != nil {
 		return fmt.Errorf("%w: message %v: %v", errDecode, msg, err)
 	}
+	log.Info("[DEBUG] Received block hashes from peer")
 	// Mark the hashes as present at the remote node
 	for _, block := range *ann {
+		log.Info("[DEBUG] Block", "number", block.Number, "hash", block.Hash)
 		peer.markBlock(block.Hash)
 	}
 	// Deliver them all to the backend for queuing