Comment

beacon-chain/blockchain/process_block.go

@@ -686,7 +686,8 @@ func (s *Service) handleInvalidExecutionError(ctx context.Context, err error, bl
 	return err
 }
 
-// In the event of an issue with
+// In the event of an issue processing a block we rollback changes done to the db and our caches
+// to always ensure that the node's internal state is consistent.
 func (s *Service) rollbackBlock(ctx context.Context, blockRoot [32]byte) {
 	log.Warnf("Rolling back insertion of block with root %#x due to processing error", blockRoot)
 	if err := s.cfg.BeaconDB.DeleteBlock(ctx, blockRoot); err != nil {