Update TxPool base fee prior to filtering txs based on effective tip

core/txpool/txpool.go

@@ -1841,6 +1841,13 @@ func (pool *TxPool) updateBaseFee() {
 	}
 }
 
+func (pool *TxPool) SetBaseFee(baseFee *big.Int) {
+	pool.mu.Lock()
+	defer pool.mu.Unlock()
+
+	pool.priced.SetBaseFee(baseFee)
+}
+
 // addressByHeartbeat is an account address tagged with its last activity timestamp.
 type addressByHeartbeat struct {
 	address   common.Address

miner/worker.go

@@ -192,6 +192,9 @@ func (w *worker) commitNewWork(predicateContext *precompileconfig.PredicateConte
 	}
 
 	// Fill the block with all available pending transactions.
+	if header.BaseFee != nil {
+		w.eth.TxPool().SetBaseFee(header.BaseFee)
+	}
 	pending := w.eth.TxPool().Pending(true)
 
 	// Split the pending transactions into locals and remotes