diff --git a/eth/sync.go b/eth/sync.go index 3a33fe149..8e4e3cfbe 100644 --- a/eth/sync.go +++ b/eth/sync.go @@ -109,17 +109,25 @@ func (pm *ProtocolManager) fetcher() { // If any explicit fetches were replied to, import them if count := len(explicit); count > 0 { glog.V(logger.Debug).Infof("Importing %d explicitly fetched blocks", count) - go func() { - for _, block := range explicit { - hash := block.Hash() - // Make sure there's still something pending to import - if announce := pending[hash]; announce != nil { - delete(pending, hash) - if err := pm.importBlock(announce.peer, block, nil); err != nil { - glog.V(logger.Detail).Infof("Failed to import explicitly fetched block: %v", err) - return - } + // Create a closure with the retrieved blocks and origin peers + peers := make([]*peer, 0, count) + blocks := make([]*types.Block, 0, count) + for _, block := range explicit { + hash := block.Hash() + if announce := pending[hash]; announce != nil { + peers = append(peers, announce.peer) + blocks = append(blocks, block) + + delete(pending, hash) + } + } + // Run the importer on a new thread + go func() { + for i := 0; i < len(blocks); i++ { + if err := pm.importBlock(peers[i], blocks[i], nil); err != nil { + glog.V(logger.Detail).Infof("Failed to import explicitly fetched block: %v", err) + return } } }()