fix: waiting for the last simulation before pick best bid

miner/worker.go

@@ -1337,13 +1337,16 @@ LOOP:
 	// when in-turn, compare with remote work.
 	from := bestWork.coinbase
 	if w.bidFetcher != nil && bestWork.header.Difficulty.Cmp(diffInTurn) == 0 {
-		waitBidTimer := time.NewTimer(w.config.DelayLeftOver / 5)
+		waitBidTimer := time.NewTimer(50 * time.Millisecond)
+		checkBidTicker := time.NewTicker(5 * time.Millisecond)
+		defer waitBidTimer.Stop()
+		defer checkBidTicker.Stop()
 	LOOP_WAIT_BID:
 		for {
 			select {
 			case <-waitBidTimer.C:
 				break LOOP_WAIT_BID
-			default:
+			case <-checkBidTicker.C:
 				if w.bidFetcher.GetSimulatingBid(bestWork.header.ParentHash) == nil {
 					break LOOP_WAIT_BID
 				}