switch to parent state roots

chain/actors/actor_storagemarket_test.go

@@ -145,7 +145,7 @@ func cheatStorageMarketTotal(t *testing.T, vm *vm.VM, bs bstore.Blockstore) {
 
 func fakeBlock(t *testing.T, minerAddr address.Address, ts uint64) *types.BlockHeader {
 	c := fakeCid(t, 1)
-	return &types.BlockHeader{Height: 5, Miner: minerAddr, Timestamp: ts, StateRoot: c, Messages: c, MessageReceipts: c, BLSAggregate: types.Signature{Type: types.KTBLS}}
+	return &types.BlockHeader{Height: 5, Miner: minerAddr, Timestamp: ts, ParentStateRoot: c, Messages: c, ParentMessageReceipts: c, BLSAggregate: types.Signature{Type: types.KTBLS}}
 }
 
 func fakeCid(t *testing.T, s int) cid.Cid {

chain/deals/asks.go

@@ -143,7 +143,7 @@ func (h *Handler) saveAsk(a *types.SignedStorageAsk) error {
 }
 
 func (c *Client) checkAskSignature(ask *types.SignedStorageAsk) error {
-	tss, err := c.sm.TipSetState(c.sm.ChainStore().GetHeaviestTipSet().Cids())
+	tss, _, err := c.sm.TipSetState(c.sm.ChainStore().GetHeaviestTipSet().Cids())
 	if err != nil {
 		return xerrors.Errorf("failed to get tipsetstate to query for miner worker: %w", err)
 	}

chain/events/events_test.go

@@ -3,11 +3,12 @@ package events
 import (
 	"context"
 	"fmt"
-	"github.com/filecoin-project/go-lotus/api"
-	"github.com/filecoin-project/go-lotus/chain/store"
 	"testing"
 	"time"
 
+	"github.com/filecoin-project/go-lotus/api"
+	"github.com/filecoin-project/go-lotus/chain/store"
+
 	"github.com/ipfs/go-cid"
 	"github.com/multiformats/go-multihash"
 	"github.com/stretchr/testify/require"
@@ -48,9 +49,9 @@ func makeTs(t *testing.T, h uint64, msgcid cid.Cid) *types.TipSet {
 		{
 			Height: h,
 
-			StateRoot:       dummyCid,
+			ParentStateRoot:       dummyCid,
 			Messages:              msgcid,
-			MessageReceipts: dummyCid,
+			ParentMessageReceipts: dummyCid,
 		},
 	})
 
@@ -608,5 +609,4 @@ func TestCalledOrder(t *testing.T) {
 	})
 
 	fcs.advance(9, 1, nil)
-
 }

chain/gen/gen.go

@@ -201,7 +201,7 @@ func (cg *ChainGen) nextBlockProof(ctx context.Context, m address.Address, ticks
 		lastTicket = ticks[len(ticks)-1]
 	}
 
-	st, err := cg.sm.TipSetState(pts.Cids())
+	st, _, err := cg.sm.TipSetState(pts.Cids())
 	if err != nil {
 		return nil, nil, err
 	}
@@ -376,7 +376,7 @@ func (mca mca) StateMinerPower(ctx context.Context, maddr address.Address, ts *t
 }
 
 func (mca mca) StateMinerWorker(ctx context.Context, maddr address.Address, ts *types.TipSet) (address.Address, error) {
-	st, err := mca.sm.TipSetState(ts.Cids())
+	st, _, err := mca.sm.TipSetState(ts.Cids())
 	if err != nil {
 		return address.Undef, err
 	}

chain/gen/mining.go

@@ -20,7 +20,7 @@ import (
 )
 
 func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w *wallet.Wallet, miner address.Address, parents *types.TipSet, tickets []*types.Ticket, proof types.ElectionProof, msgs []*types.SignedMessage, timestamp uint64) (*types.FullBlock, error) {
-	st, err := sm.TipSetState(parents.Cids())
+	st, recpts, err := sm.TipSetState(parents.Cids())
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to load tipset state")
 	}
@@ -59,6 +59,8 @@ func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w *wallet.Wal
 		Height:                height,
 		Timestamp:             timestamp,
 		ElectionProof:         proof,
+		ParentStateRoot:       st,
+		ParentMessageReceipts: recpts,
 	}
 
 	var blsMessages []*types.Message
@@ -83,24 +85,6 @@ func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w *wallet.Wal
 		}
 	}
 
-	var receipts []cbg.CBORMarshaler
-	for _, msg := range blsMessages {
-		rec, err := vmi.ApplyMessage(ctx, msg)
-		if err != nil {
-			return nil, errors.Wrap(err, "apply message failure")
-		}
-
-		receipts = append(receipts, &rec.MessageReceipt)
-	}
-	for _, msg := range secpkMessages {
-		rec, err := vmi.ApplyMessage(ctx, &msg.Message)
-		if err != nil {
-			return nil, errors.Wrap(err, "apply message failure")
-		}
-
-		receipts = append(receipts, &rec.MessageReceipt)
-	}
-
 	bs := amt.WrapBlockstore(sm.ChainStore().Blockstore())
 	blsmsgroot, err := amt.FromArray(bs, toIfArr(blsMsgCids))
 	if err != nil {
@@ -120,24 +104,12 @@ func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w *wallet.Wal
 	}
 	next.Messages = mmcid
 
-	rectroot, err := amt.FromArray(bs, receipts)
-	if err != nil {
-		return nil, xerrors.Errorf("failed to build receipts amt: %w", err)
-	}
-	next.MessageReceipts = rectroot
-
-	stateRoot, err := vmi.Flush(context.TODO())
-	if err != nil {
-		return nil, errors.Wrap(err, "flushing state tree failed")
-	}
-
 	aggSig, err := aggregateSignatures(blsSigs)
 	if err != nil {
 		return nil, err
 	}
 
 	next.BLSAggregate = aggSig
-	next.StateRoot = stateRoot
 	pweight := sm.ChainStore().Weight(parents)
 	next.ParentWeight = types.NewInt(pweight)
 

chain/gen/utils.go

@@ -341,9 +341,9 @@ func MakeGenesisBlock(bs bstore.Blockstore, balances map[address.Address]types.B
 		Parents:               []cid.Cid{},
 		Height:                0,
 		ParentWeight:          types.NewInt(0),
-		StateRoot:       stateroot,
+		ParentStateRoot:       stateroot,
 		Messages:              mmb.Cid(),
-		MessageReceipts: emptyroot,
+		ParentMessageReceipts: emptyroot,
 		BLSAggregate:          types.Signature{Type: types.KTBLS, Data: []byte("signatureeee")},
 		BlockSig:              types.Signature{Type: types.KTBLS, Data: []byte("block signatureeee")},
 		Timestamp:             ts,

chain/stmgr/call.go

@@ -53,7 +53,7 @@ func (sm *StateManager) Call(ctx context.Context, msg *types.Message, ts *types.
 		ts = sm.cs.GetHeaviestTipSet()
 	}
 
-	state, err := sm.TipSetState(ts.Cids())
+	state, _, err := sm.TipSetState(ts.Cids())
 	if err != nil {
 		return nil, xerrors.Errorf("getting tipset state: %w", err)
 	}
@@ -69,7 +69,7 @@ func (sm *StateManager) Replay(ctx context.Context, ts *types.TipSet, mcid cid.C
 	var outm *types.Message
 	var outr *vm.ApplyRet
 
-	_, err := sm.computeTipSetState(ctx, ts.Blocks(), func(c cid.Cid, m *types.Message, ret *vm.ApplyRet) error {
+	_, _, err := sm.computeTipSetState(ctx, ts.Blocks(), func(c cid.Cid, m *types.Message, ret *vm.ApplyRet) error {
 		if c == mcid {
 			outm = m
 			outr = ret

chain/stmgr/stmgr.go

@@ -4,11 +4,13 @@ import (
 	"context"
 	"sync"
 
+	amt "github.com/filecoin-project/go-amt-ipld"
 	"github.com/filecoin-project/go-lotus/chain/address"
 	"github.com/filecoin-project/go-lotus/chain/state"
 	"github.com/filecoin-project/go-lotus/chain/store"
 	"github.com/filecoin-project/go-lotus/chain/types"
 	"github.com/filecoin-project/go-lotus/chain/vm"
+	cbg "github.com/whyrusleeping/cbor-gen"
 	"golang.org/x/xerrors"
 
 	"github.com/ipfs/go-cid"
@@ -21,14 +23,14 @@ var log = logging.Logger("statemgr")
 type StateManager struct {
 	cs *store.ChainStore
 
-	stCache map[string]cid.Cid
+	stCache map[string][]cid.Cid
 	stlk    sync.Mutex
 }
 
 func NewStateManager(cs *store.ChainStore) *StateManager {
 	return &StateManager{
 		cs:      cs,
-		stCache: make(map[string]cid.Cid),
+		stCache: make(map[string][]cid.Cid),
 	}
 }
 
@@ -40,7 +42,7 @@ func cidsToKey(cids []cid.Cid) string {
 	return out
 }
 
-func (sm *StateManager) TipSetState(cids []cid.Cid) (cid.Cid, error) {
+func (sm *StateManager) TipSetState(cids []cid.Cid) (cid.Cid, cid.Cid, error) {
 	ctx := context.TODO()
 
 	ck := cidsToKey(cids)
@@ -48,34 +50,32 @@ func (sm *StateManager) TipSetState(cids []cid.Cid) (cid.Cid, error) {
 	cached, ok := sm.stCache[ck]
 	sm.stlk.Unlock()
 	if ok {
-		return cached, nil
+		return cached[0], cached[1], nil
 	}
 
 	ts, err := sm.cs.LoadTipSet(cids)
 	if err != nil {
-		return cid.Undef, err
+		return cid.Undef, cid.Undef, err
 	}
 
-	out, err := sm.computeTipSetState(ctx, ts.Blocks(), nil)
+	st, rec, err := sm.computeTipSetState(ctx, ts.Blocks(), nil)
 	if err != nil {
-		return cid.Undef, err
+		return cid.Undef, cid.Undef, err
 	}
 
 	sm.stlk.Lock()
-	sm.stCache[ck] = out
+	sm.stCache[ck] = []cid.Cid{st, rec}
 	sm.stlk.Unlock()
-	return out, nil
+	return st, rec, nil
 }
 
-func (sm *StateManager) computeTipSetState(ctx context.Context, blks []*types.BlockHeader, cb func(cid.Cid, *types.Message, *vm.ApplyRet) error) (cid.Cid, error) {
+type ChainMsg interface {
-	if len(blks) == 1 && cb == nil {
+	Cid() cid.Cid
-		return blks[0].StateRoot, nil
+	VMMessage() *types.Message
-	}
+}
 
-	pstate, err := sm.TipSetState(blks[0].Parents)
+func (sm *StateManager) computeTipSetState(ctx context.Context, blks []*types.BlockHeader, cb func(cid.Cid, *types.Message, *vm.ApplyRet) error) (cid.Cid, cid.Cid, error) {
-	if err != nil {
+	pstate := blks[0].ParentStateRoot
-		return cid.Undef, xerrors.Errorf("recursive TipSetState failed: %w", err)
-	}
 
 	cids := make([]cid.Cid, len(blks))
 	for i, v := range blks {
@@ -86,56 +86,94 @@ func (sm *StateManager) computeTipSetState(ctx context.Context, blks []*types.Bl
 
 	vmi, err := vm.NewVM(pstate, blks[0].Height, r, address.Undef, sm.cs)
 	if err != nil {
-		return cid.Undef, xerrors.Errorf("instantiating VM failed: %w", err)
+		return cid.Undef, cid.Undef, xerrors.Errorf("instantiating VM failed: %w", err)
 	}
 
-	applied := make(map[cid.Cid]bool)
+	/* TODO: apply mining reward
+	netbalance, err := vmi.ActorBalance(actors.NetworkAddress)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("failed to get network actor balance: %w", err)
+	}
+
+	vm.MiningRewardForBlock(netbalance)
+	*/
+
+	applied := make(map[address.Address]uint64)
+	balances := make(map[address.Address]types.BigInt)
+
+	preloadAddr := func(a address.Address) error {
+		if _, ok := applied[a]; !ok {
+			act, err := vmi.StateTree().GetActor(a)
+			if err != nil {
+				return err
+			}
+
+			applied[a] = act.Nonce
+			balances[a] = act.Balance
+		}
+		return nil
+	}
+
+	var receipts []cbg.CBORMarshaler
 	for _, b := range blks {
 		vmi.SetBlockMiner(b.Miner)
 
 		bms, sms, err := sm.cs.MessagesForBlock(b)
 		if err != nil {
-			return cid.Undef, xerrors.Errorf("failed to get messages for block: %w", err)
+			return cid.Undef, cid.Undef, xerrors.Errorf("failed to get messages for block: %w", err)
 		}
 
+		cmsgs := make([]ChainMsg, 0, len(bms)+len(sms))
 		for _, m := range bms {
-			if applied[m.Cid()] {
+			cmsgs = append(cmsgs, m)
+		}
+		for _, sm := range sms {
+			cmsgs = append(cmsgs, sm)
+		}
+
+		for _, cm := range cmsgs {
+			m := cm.VMMessage()
+			if err := preloadAddr(m.From); err != nil {
+				return cid.Undef, cid.Undef, err
+			}
+
+			if applied[m.From] != m.Nonce {
 				continue
 			}
-			applied[m.Cid()] = true
+			applied[m.From]++
+
+			if balances[m.From].LessThan(m.RequiredFunds()) {
+				continue
+			}
+			balances[m.From] = types.BigSub(balances[m.From], m.RequiredFunds())
 
 			r, err := vmi.ApplyMessage(ctx, m)
 			if err != nil {
-				return cid.Undef, err
+				return cid.Undef, cid.Undef, err
 			}
 
+			receipts = append(receipts, &r.MessageReceipt)
+
 			if cb != nil {
-				if err := cb(m.Cid(), m, r); err != nil {
+				if err := cb(cm.Cid(), m, r); err != nil {
-					return cid.Undef, err
+					return cid.Undef, cid.Undef, err
+				}
 			}
 		}
 	}
 
-		for _, sm := range sms {
+	bs := amt.WrapBlockstore(sm.cs.Blockstore())
-			if applied[sm.Cid()] {
+	rectroot, err := amt.FromArray(bs, receipts)
-				continue
-			}
-			applied[sm.Cid()] = true
-
-			r, err := vmi.ApplyMessage(ctx, &sm.Message)
 	if err != nil {
-				return cid.Undef, err
+		return cid.Undef, cid.Undef, xerrors.Errorf("failed to build receipts amt: %w", err)
 	}
 
-			if cb != nil {
+	st, err := vmi.Flush(ctx)
-				if err := cb(sm.Cid(), &sm.Message, r); err != nil {
+	if err != nil {
-					return cid.Undef, err
+		return cid.Undef, cid.Undef, xerrors.Errorf("vm flush failed: %w", err)
-				}
-			}
-		}
 	}
 
-	return vmi.Flush(ctx)
+	return st, rectroot, nil
 }
 
 func (sm *StateManager) GetActor(addr address.Address, ts *types.TipSet) (*types.Actor, error) {
@@ -143,7 +181,7 @@ func (sm *StateManager) GetActor(addr address.Address, ts *types.TipSet) (*types
 		ts = sm.cs.GetHeaviestTipSet()
 	}
 
-	stcid, err := sm.TipSetState(ts.Cids())
+	stcid, _, err := sm.TipSetState(ts.Cids())
 	if err != nil {
 		return nil, xerrors.Errorf("tipset state: %w", err)
 	}

chain/store/store.go

@@ -551,7 +551,7 @@ func (cs *ChainStore) MessagesForBlock(b *types.BlockHeader) ([]*types.Message,
 
 func (cs *ChainStore) GetReceipt(b *types.BlockHeader, i int) (*types.MessageReceipt, error) {
 	bs := amt.WrapBlockstore(cs.bs)
-	a, err := amt.LoadAMT(bs, b.MessageReceipts)
+	a, err := amt.LoadAMT(bs, b.ParentMessageReceipts)
 	if err != nil {
 		return nil, errors.Wrap(err, "amt load")
 	}

chain/sync.go

@@ -10,15 +10,16 @@ import (
 	"github.com/filecoin-project/go-lotus/build"
 	"github.com/filecoin-project/go-lotus/chain/actors"
 	"github.com/filecoin-project/go-lotus/chain/address"
+	"github.com/filecoin-project/go-lotus/chain/state"
 	"github.com/filecoin-project/go-lotus/chain/stmgr"
 	"github.com/filecoin-project/go-lotus/chain/store"
 	"github.com/filecoin-project/go-lotus/chain/types"
-	"github.com/filecoin-project/go-lotus/chain/vm"
 	"github.com/filecoin-project/go-lotus/lib/vdf"
 
 	amt "github.com/filecoin-project/go-amt-ipld"
 	"github.com/ipfs/go-cid"
 	dstore "github.com/ipfs/go-datastore"
+	hamt "github.com/ipfs/go-hamt-ipld"
 	bstore "github.com/ipfs/go-ipfs-blockstore"
 	logging "github.com/ipfs/go-log"
 	"github.com/libp2p/go-libp2p-core/peer"
@@ -380,11 +381,19 @@ func (syncer *Syncer) validateTickets(ctx context.Context, mworker address.Addre
 // Should match up with 'Semantical Validation' in validation.md in the spec
 func (syncer *Syncer) ValidateBlock(ctx context.Context, b *types.FullBlock) error {
 	h := b.Header
-	stateroot, err := syncer.sm.TipSetState(h.Parents)
+	stateroot, precp, err := syncer.sm.TipSetState(h.Parents)
 	if err != nil {
 		return xerrors.Errorf("get tipsetstate(%d, %s) failed: %w", h.Height, h.Parents, err)
 	}
 
+	if stateroot != h.ParentStateRoot {
+		return xerrors.Errorf("parent state root did not match computed state (%s != %s)", stateroot, h.ParentStateRoot)
+	}
+
+	if precp != h.ParentMessageReceipts {
+		return xerrors.Errorf("parent receipts root did not match computed value (%s != %s)", precp, h.ParentMessageReceipts)
+	}
+
 	baseTs, err := syncer.store.LoadTipSet(h.Parents)
 	if err != nil {
 		return xerrors.Errorf("load tipset failed: %w", err)
@@ -434,61 +443,48 @@ func (syncer *Syncer) ValidateBlock(ctx context.Context, b *types.FullBlock) err
 		return xerrors.Errorf("miner created a block but was not a winner")
 	}
 
-	r := vm.NewChainRand(syncer.store, baseTs.Cids(), baseTs.Height(), h.Tickets)
+	nonces := make(map[address.Address]uint64)
-	vmi, err := vm.NewVM(stateroot, h.Height, r, h.Miner, syncer.store)
+	balances := make(map[address.Address]types.BigInt)
+
+	cst := hamt.CSTFromBstore(syncer.store.Blockstore())
+	st, err := state.LoadStateTree(cst, stateroot)
 	if err != nil {
-		return xerrors.Errorf("failed to instantiate VM: %w", err)
+		return xerrors.Errorf("failed to load base state tree: %w", err)
 	}
 
-	owner, err := stmgr.GetMinerOwner(ctx, syncer.sm, stateroot, b.Header.Miner)
+	checkMsg := func(m *types.Message) error {
+		if _, ok := nonces[m.From]; !ok {
+			act, err := st.GetActor(m.From)
 			if err != nil {
-		return xerrors.Errorf("getting miner owner for block miner failed: %w", err)
+				return xerrors.Errorf("failed to get actor: %w", err)
 			}
-	networkBalance, err := vmi.ActorBalance(actors.NetworkAddress)
+			nonces[m.From] = act.Nonce
-	if err != nil {
+			balances[m.From] = act.Balance
-		return xerrors.Errorf("getting network balance")
 		}
 
-	if err := vmi.TransferFunds(actors.NetworkAddress, owner,
+		if nonces[m.From] != m.Nonce {
-		vm.MiningReward(networkBalance)); err != nil {
+			return xerrors.Errorf("wrong nonce")
-		return xerrors.Errorf("fund transfer failed: %w", err)
+		}
+		nonces[m.From]++
+
+		if balances[m.From].LessThan(m.RequiredFunds()) {
+			return xerrors.Errorf("not enough funds for message execution")
+		}
+
+		balances[m.From] = types.BigSub(balances[m.From], m.RequiredFunds())
+		return nil
 	}
 
-	var receipts []cbg.CBORMarshaler
 	for i, m := range b.BlsMessages {
-		receipt, err := vmi.ApplyMessage(ctx, m)
+		if err := checkMsg(m); err != nil {
-		if err != nil {
+			xerrors.Errorf("block had invalid bls message at index %d: %w", i, err)
-			return xerrors.Errorf("failed executing bls message %d in block %s: %w", i, b.Header.Cid(), err)
 		}
-
-		receipts = append(receipts, &receipt.MessageReceipt)
 	}
 
 	for i, m := range b.SecpkMessages {
-		receipt, err := vmi.ApplyMessage(ctx, &m.Message)
+		if err := checkMsg(&m.Message); err != nil {
-		if err != nil {
+			xerrors.Errorf("block had invalid secpk message at index %d: %w", i, err)
-			return xerrors.Errorf("failed executing secpk message %d in block %s: %w", i, b.Header.Cid(), err)
 		}
-
-		receipts = append(receipts, &receipt.MessageReceipt)
-	}
-
-	bs := amt.WrapBlockstore(syncer.store.Blockstore())
-	recptRoot, err := amt.FromArray(bs, receipts)
-	if err != nil {
-		return xerrors.Errorf("building receipts amt failed: %w", err)
-	}
-	if recptRoot != b.Header.MessageReceipts {
-		return fmt.Errorf("receipts mismatched")
-	}
-
-	final, err := vmi.Flush(context.TODO())
-	if err != nil {
-		return xerrors.Errorf("failed to flush VM state: %w", err)
-	}
-
-	if b.Header.StateRoot != final {
-		return fmt.Errorf("final state root does not match block")
 	}
 
 	return nil

chain/types/blockheader.go

@@ -34,14 +34,14 @@ type BlockHeader struct {
 
 	Height uint64
 
-	StateRoot cid.Cid
+	ParentStateRoot cid.Cid
+
+	ParentMessageReceipts cid.Cid
 
 	Messages cid.Cid
 
 	BLSAggregate Signature
 
-	MessageReceipts cid.Cid
-
 	Timestamp uint64
 
 	BlockSig Signature

chain/types/blockheader_test.go

@@ -33,12 +33,12 @@ func testBlockHeader(t testing.TB) *BlockHeader {
 			},
 		},
 		Parents:               []cid.Cid{c, c},
-		MessageReceipts: c,
+		ParentMessageReceipts: c,
 		BLSAggregate:          Signature{Type: KTBLS, Data: []byte("boo! im a signature")},
 		ParentWeight:          NewInt(123125126212),
 		Messages:              c,
 		Height:                85919298723,
-		StateRoot:       c,
+		ParentStateRoot:       c,
 		BlockSig:              Signature{Type: KTBLS, Data: []byte("boo! im a signature")},
 	}
 }

chain/types/cbor_gen.go

@@ -5,7 +5,7 @@ import (
 	"io"
 	"math"
 
-	"github.com/ipfs/go-cid"
+	cid "github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	xerrors "golang.org/x/xerrors"
 )
@@ -66,10 +66,16 @@ func (t *BlockHeader) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	// t.t.StateRoot (cid.Cid)
+	// t.t.ParentStateRoot (cid.Cid)
 
-	if err := cbg.WriteCid(w, t.StateRoot); err != nil {
+	if err := cbg.WriteCid(w, t.ParentStateRoot); err != nil {
-		return xerrors.Errorf("failed to write cid field t.StateRoot: %w", err)
+		return xerrors.Errorf("failed to write cid field t.ParentStateRoot: %w", err)
+	}
+
+	// t.t.ParentMessageReceipts (cid.Cid)
+
+	if err := cbg.WriteCid(w, t.ParentMessageReceipts); err != nil {
+		return xerrors.Errorf("failed to write cid field t.ParentMessageReceipts: %w", err)
 	}
 
 	// t.t.Messages (cid.Cid)
@@ -83,12 +89,6 @@ func (t *BlockHeader) MarshalCBOR(w io.Writer) error {
 		return err
 	}
 
-	// t.t.MessageReceipts (cid.Cid)
-
-	if err := cbg.WriteCid(w, t.MessageReceipts); err != nil {
-		return xerrors.Errorf("failed to write cid field t.MessageReceipts: %w", err)
-	}
-
 	// t.t.Timestamp (uint64)
 	if _, err := w.Write(cbg.CborEncodeMajorType(cbg.MajUnsignedInt, t.Timestamp)); err != nil {
 		return err
@@ -212,16 +212,28 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 		return fmt.Errorf("wrong type for uint64 field")
 	}
 	t.Height = extra
-	// t.t.StateRoot (cid.Cid)
+	// t.t.ParentStateRoot (cid.Cid)
 
 	{
 
 		c, err := cbg.ReadCid(br)
 		if err != nil {
-			return xerrors.Errorf("failed to read cid field t.StateRoot: %w", err)
+			return xerrors.Errorf("failed to read cid field t.ParentStateRoot: %w", err)
 		}
 
-		t.StateRoot = c
+		t.ParentStateRoot = c
+
+	}
+	// t.t.ParentMessageReceipts (cid.Cid)
+
+	{
+
+		c, err := cbg.ReadCid(br)
+		if err != nil {
+			return xerrors.Errorf("failed to read cid field t.ParentMessageReceipts: %w", err)
+		}
+
+		t.ParentMessageReceipts = c
 
 	}
 	// t.t.Messages (cid.Cid)
@@ -244,18 +256,6 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 			return err
 		}
 
-	}
-	// t.t.MessageReceipts (cid.Cid)
-
-	{
-
-		c, err := cbg.ReadCid(br)
-		if err != nil {
-			return xerrors.Errorf("failed to read cid field t.MessageReceipts: %w", err)
-		}
-
-		t.MessageReceipts = c
-
 	}
 	// t.t.Timestamp (uint64)
 

chain/types/message.go

@@ -73,3 +73,7 @@ func (m *Message) RequiredFunds() BigInt {
 		BigMul(m.GasPrice, m.GasLimit),
 	)
 }
+
+func (m *Message) VMMessage() *Message {
+	return m
+}

chain/types/signedmessage.go

@@ -57,3 +57,7 @@ func (sm *SignedMessage) Serialize() ([]byte, error) {
 	}
 	return buf.Bytes(), nil
 }
+
+func (sm *SignedMessage) VMMessage() *Message {
+	return &sm.Message
+}

node/impl/full/state.go

@@ -134,7 +134,7 @@ func (a *StateAPI) stateForTs(ts *types.TipSet) (*state.StateTree, error) {
 		ts = a.Chain.GetHeaviestTipSet()
 	}
 
-	st, err := a.StateManager.TipSetState(ts.Cids())
+	st, _, err := a.StateManager.TipSetState(ts.Cids())
 	if err != nil {
 		return nil, err
 	}