Merge pull request #8991 from filecoin-project/fix/estimate-with-zero-base-fee

fix: gas: estimate gas with a zero base-fee

node/impl/full/gas.go

@@ -258,8 +258,8 @@ func gasEstimateGasLimit(
 ) (int64, error) {
 	msg := *msgIn
 	msg.GasLimit = build.BlockGasLimit
-	msg.GasFeeCap = types.NewInt(uint64(build.MinimumBaseFee) + 1)
-	msg.GasPremium = types.NewInt(1)
+	msg.GasFeeCap = big.Zero()
+	msg.GasPremium = big.Zero()
 
 	fromA, err := smgr.ResolveToKeyAddress(ctx, msgIn.From, currTs)
 	if err != nil {

node/impl/full/mpool.go

@@ -9,6 +9,7 @@ import (
 	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/big"
 
 	"github.com/filecoin-project/lotus/api"
 	"github.com/filecoin-project/lotus/chain/messagepool"
@@ -178,8 +179,9 @@ func (a *MpoolAPI) MpoolPushMessage(ctx context.Context, msg *types.Message, spe
 		return nil, xerrors.Errorf("mpool push: getting origin balance: %w", err)
 	}
 
-	if b.LessThan(msg.Value) {
-		return nil, xerrors.Errorf("mpool push: not enough funds: %s < %s", b, msg.Value)
+	requiredFunds := big.Add(msg.Value, msg.RequiredFunds())
+	if b.LessThan(requiredFunds) {
+		return nil, xerrors.Errorf("mpool push: not enough funds: %s < %s", b, requiredFunds)
 	}
 
 	// Sign and push the message