Merge remote-tracking branch 'origin/testnet/3' into feat/new-workers

api/cbor_gen.go

@@ -124,7 +124,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
 			{
 
 				if err := t.Channel.UnmarshalCBOR(br); err != nil {
-					return err
+					return xerrors.Errorf("unmarshaling t.Channel: %w", err)
 				}
 
 			}

chain/blocksync/blocksync.go

@@ -138,7 +138,7 @@ func (bss *BlockSyncService) processRequest(ctx context.Context, p peer.ID, req
 		reqlen = BlockSyncMaxRequestLength
 	}
 
-	chain, err := bss.collectChainSegment(types.NewTipSetKey(req.Start...), reqlen, opts)
+	chain, err := collectChainSegment(bss.cs, types.NewTipSetKey(req.Start...), reqlen, opts)
 	if err != nil {
 		log.Warn("encountered error while responding to block sync request: ", err)
 		return &BlockSyncResponse{
@@ -158,18 +158,18 @@ func (bss *BlockSyncService) processRequest(ctx context.Context, p peer.ID, req
 	}, nil
 }
 
-func (bss *BlockSyncService) collectChainSegment(start types.TipSetKey, length uint64, opts *BSOptions) ([]*BSTipSet, error) {
+func collectChainSegment(cs *store.ChainStore, start types.TipSetKey, length uint64, opts *BSOptions) ([]*BSTipSet, error) {
 	var bstips []*BSTipSet
 	cur := start
 	for {
 		var bst BSTipSet
-		ts, err := bss.cs.LoadTipSet(cur)
+		ts, err := cs.LoadTipSet(cur)
 		if err != nil {
 			return nil, xerrors.Errorf("failed loading tipset %s: %w", cur, err)
 		}
 
 		if opts.IncludeMessages {
-			bmsgs, bmincl, smsgs, smincl, err := bss.gatherMessages(ts)
+			bmsgs, bmincl, smsgs, smincl, err := gatherMessages(cs, ts)
 			if err != nil {
 				return nil, xerrors.Errorf("gather messages failed: %w", err)
 			}
@@ -194,7 +194,7 @@ func (bss *BlockSyncService) collectChainSegment(start types.TipSetKey, length u
 	}
 }
 
-func (bss *BlockSyncService) gatherMessages(ts *types.TipSet) ([]*types.Message, [][]uint64, []*types.SignedMessage, [][]uint64, error) {
+func gatherMessages(cs *store.ChainStore, ts *types.TipSet) ([]*types.Message, [][]uint64, []*types.SignedMessage, [][]uint64, error) {
 	blsmsgmap := make(map[cid.Cid]uint64)
 	secpkmsgmap := make(map[cid.Cid]uint64)
 	var secpkmsgs []*types.SignedMessage
@@ -202,7 +202,7 @@ func (bss *BlockSyncService) gatherMessages(ts *types.TipSet) ([]*types.Message,
 	var secpkincl, blsincl [][]uint64
 
 	for _, b := range ts.Blocks() {
-		bmsgs, smsgs, err := bss.cs.MessagesForBlock(b)
+		bmsgs, smsgs, err := cs.MessagesForBlock(b)
 		if err != nil {
 			return nil, nil, nil, nil, err
 		}

chain/blocksync/blocksync_client.go

@@ -12,6 +12,8 @@ import (
 	blocks "github.com/ipfs/go-block-format"
 	bserv "github.com/ipfs/go-blockservice"
 	"github.com/ipfs/go-cid"
+	graphsync "github.com/ipfs/go-graphsync"
+	gsnet "github.com/ipfs/go-graphsync/network"
 	host "github.com/libp2p/go-libp2p-core/host"
 	inet "github.com/libp2p/go-libp2p-core/network"
 	"github.com/libp2p/go-libp2p-core/peer"
@@ -28,18 +30,20 @@ import (
 
 type BlockSync struct {
 	bserv bserv.BlockService
+	gsync graphsync.GraphExchange
 	host  host.Host
 
 	syncPeers *bsPeerTracker
 	peerMgr   *peermgr.PeerMgr
 }
 
-func NewBlockSyncClient(bserv dtypes.ChainBlockService, h host.Host, pmgr peermgr.MaybePeerMgr) *BlockSync {
+func NewBlockSyncClient(bserv dtypes.ChainBlockService, h host.Host, pmgr peermgr.MaybePeerMgr, gs dtypes.Graphsync) *BlockSync {
 	return &BlockSync{
 		bserv:     bserv,
 		host:      h,
 		syncPeers: newPeerTracker(pmgr.Mgr),
 		peerMgr:   pmgr.Mgr,
+		gsync:     gs,
 	}
 }
 
@@ -234,14 +238,45 @@ func (bs *BlockSync) sendRequestToPeer(ctx context.Context, p peer.ID, req *Bloc
 		}
 	}()
 
-	start := time.Now()
-
 	if span.IsRecordingEvents() {
 		span.AddAttributes(
 			trace.StringAttribute("peer", p.Pretty()),
 		)
 	}
 
+	gsproto := string(gsnet.ProtocolGraphsync)
+	supp, err := bs.host.Peerstore().SupportsProtocols(p, BlockSyncProtocolID, gsproto)
+	if err != nil {
+		return nil, xerrors.Errorf("failed to get protocols for peer: %w", err)
+	}
+
+	if len(supp) == 0 {
+		return nil, xerrors.Errorf("peer %s supports no known sync protocols", p)
+	}
+
+	switch supp[0] {
+	case BlockSyncProtocolID:
+		res, err := bs.fetchBlocksBlockSync(ctx, p, req)
+		if err != nil {
+			return nil, xerrors.Errorf("blocksync req failed: %w", err)
+		}
+		return res, nil
+	case gsproto:
+		res, err := bs.fetchBlocksGraphSync(ctx, p, req)
+		if err != nil {
+			return nil, xerrors.Errorf("graphsync req failed: %w", err)
+		}
+		return res, nil
+	default:
+		return nil, xerrors.Errorf("peerstore somehow returned unexpected protocols: %v", supp)
+	}
+
+}
+func (bs *BlockSync) fetchBlocksBlockSync(ctx context.Context, p peer.ID, req *BlockSyncRequest) (*BlockSyncResponse, error) {
+	ctx, span := trace.StartSpan(ctx, "blockSyncFetch")
+	defer span.End()
+
+	start := time.Now()
 	s, err := bs.host.NewStream(inet.WithNoDial(ctx, "should already have connection"), p, BlockSyncProtocolID)
 	if err != nil {
 		bs.RemovePeer(p)
@@ -272,7 +307,6 @@ func (bs *BlockSync) sendRequestToPeer(ctx context.Context, p peer.ID, req *Bloc
 	}
 
 	bs.syncPeers.logSuccess(p, time.Since(start))
-
 	return &res, nil
 }
 

chain/blocksync/cbor_gen.go

@@ -7,7 +7,7 @@ import (
 	"io"
 
 	"github.com/filecoin-project/lotus/chain/types"
-	"github.com/ipfs/go-cid"
+	cid "github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	xerrors "golang.org/x/xerrors"
 )

chain/blocksync/graphsync_client.go

@@ -0,0 +1,146 @@
+package blocksync
+
+import (
+	"context"
+
+	"github.com/ipfs/go-cid"
+	"github.com/ipfs/go-datastore"
+	"github.com/ipld/go-ipld-prime"
+	"github.com/libp2p/go-libp2p-core/peer"
+	"golang.org/x/xerrors"
+
+	store "github.com/filecoin-project/lotus/chain/store"
+	"github.com/filecoin-project/lotus/chain/types"
+
+	ipldfree "github.com/ipld/go-ipld-prime/impl/free"
+	cidlink "github.com/ipld/go-ipld-prime/linking/cid"
+	ipldselector "github.com/ipld/go-ipld-prime/traversal/selector"
+	selectorbuilder "github.com/ipld/go-ipld-prime/traversal/selector/builder"
+)
+
+const (
+
+	// AMT selector recursion. An AMT has arity of 8 so this gives allows
+	// us to retrieve trees with 8^10 (1,073,741,824) elements.
+	amtRecursionDepth = uint32(10)
+
+	// some constants for looking up tuple encoded struct fields
+	// field index of Parents field in a block header
+	blockIndexParentsField = 3
+
+	// field index of Messages field in a block header
+	blockIndexMessagesField = 8
+
+	// field index of AMT node in AMT head
+	amtHeadNodeFieldIndex = 2
+
+	// field index of links array AMT node
+	amtNodeLinksFieldIndex = 1
+
+	// field index of values array AMT node
+	amtNodeValuesFieldIndex = 2
+
+	// maximum depth per traversal
+	maxRequestLength = 50
+)
+
+var amtSelector selectorbuilder.SelectorSpec
+
+func init() {
+	// builer for selectors
+	ssb := selectorbuilder.NewSelectorSpecBuilder(ipldfree.NodeBuilder())
+	// amt selector -- needed to selector through a messages AMT
+	amtSelector = ssb.ExploreIndex(amtHeadNodeFieldIndex,
+		ssb.ExploreRecursive(ipldselector.RecursionLimitDepth(int(amtRecursionDepth)),
+			ssb.ExploreUnion(
+				ssb.ExploreIndex(amtNodeLinksFieldIndex,
+					ssb.ExploreAll(ssb.ExploreRecursiveEdge())),
+				ssb.ExploreIndex(amtNodeValuesFieldIndex,
+					ssb.ExploreAll(ssb.Matcher())))))
+}
+
+func selectorForRequest(req *BlockSyncRequest) ipld.Node {
+	// builer for selectors
+	ssb := selectorbuilder.NewSelectorSpecBuilder(ipldfree.NodeBuilder())
+
+	bso := ParseBSOptions(req.Options)
+	if bso.IncludeMessages {
+		return ssb.ExploreRecursive(ipldselector.RecursionLimitDepth(int(req.RequestLength)),
+			ssb.ExploreIndex(blockIndexParentsField,
+				ssb.ExploreUnion(
+					ssb.ExploreAll(
+						ssb.ExploreIndex(blockIndexMessagesField,
+							ssb.ExploreRange(0, 2, amtSelector),
+						)),
+					ssb.ExploreIndex(0, ssb.ExploreRecursiveEdge()),
+				))).Node()
+	}
+	return ssb.ExploreRecursive(ipldselector.RecursionLimitDepth(int(req.RequestLength)), ssb.ExploreIndex(blockIndexParentsField,
+		ssb.ExploreUnion(
+			ssb.ExploreAll(
+				ssb.Matcher(),
+			),
+			ssb.ExploreIndex(0, ssb.ExploreRecursiveEdge()),
+		))).Node()
+}
+
+func firstTipsetSelector(req *BlockSyncRequest) ipld.Node {
+	// builer for selectors
+	ssb := selectorbuilder.NewSelectorSpecBuilder(ipldfree.NodeBuilder())
+
+	bso := ParseBSOptions(req.Options)
+	if bso.IncludeMessages {
+		return ssb.ExploreIndex(blockIndexMessagesField,
+			ssb.ExploreRange(0, 2, amtSelector),
+		).Node()
+	}
+	return ssb.Matcher().Node()
+
+}
+
+func (bs *BlockSync) executeGsyncSelector(ctx context.Context, p peer.ID, root cid.Cid, sel ipld.Node) error {
+	_, errs := bs.gsync.Request(ctx, p, cidlink.Link{Cid: root}, sel)
+
+	for err := range errs {
+		return xerrors.Errorf("failed to complete graphsync request: %w", err)
+	}
+	return nil
+}
+
+// Fallback for interacting with other non-lotus nodes
+func (bs *BlockSync) fetchBlocksGraphSync(ctx context.Context, p peer.ID, req *BlockSyncRequest) (*BlockSyncResponse, error) {
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	immediateTsSelector := firstTipsetSelector(req)
+
+	// Do this because we can only request one root at a time
+	for _, r := range req.Start {
+		if err := bs.executeGsyncSelector(ctx, p, r, immediateTsSelector); err != nil {
+			return nil, err
+		}
+	}
+
+	if req.RequestLength > maxRequestLength {
+		req.RequestLength = maxRequestLength
+	}
+
+	sel := selectorForRequest(req)
+
+	// execute the selector forreal
+	if err := bs.executeGsyncSelector(ctx, p, req.Start[0], sel); err != nil {
+		return nil, err
+	}
+
+	// Now pull the data we fetched out of the chainstore (where it should now be persisted)
+	tempcs := store.NewChainStore(bs.bserv.Blockstore(), datastore.NewMapDatastore(), nil)
+
+	opts := ParseBSOptions(req.Options)
+	tsk := types.NewTipSetKey(req.Start...)
+	chain, err := collectChainSegment(tempcs, tsk, req.RequestLength, opts)
+	if err != nil {
+		return nil, xerrors.Errorf("failed to load chain data from chainstore after successful graphsync response (start = %v): %w", req.Start, err)
+	}
+
+	return &BlockSyncResponse{Chain: chain}, nil
+}

chain/events/events_test.go

@@ -70,7 +70,7 @@ func makeTs(t *testing.T, h abi.ChainEpoch, msgcid cid.Cid) *types.TipSet {
 			ParentMessageReceipts: dummyCid,
 
 			BlockSig:     &crypto.Signature{Type: crypto.SigTypeBLS},
-			BLSAggregate: crypto.Signature{Type: crypto.SigTypeBLS},
+			BLSAggregate: &crypto.Signature{Type: crypto.SigTypeBLS},
 		},
 		{
 			Height: h,
@@ -83,7 +83,7 @@ func makeTs(t *testing.T, h abi.ChainEpoch, msgcid cid.Cid) *types.TipSet {
 			ParentMessageReceipts: dummyCid,
 
 			BlockSig:     &crypto.Signature{Type: crypto.SigTypeBLS},
-			BLSAggregate: crypto.Signature{Type: crypto.SigTypeBLS},
+			BLSAggregate: &crypto.Signature{Type: crypto.SigTypeBLS},
 		},
 	})
 

chain/events/tscache_test.go

@@ -30,7 +30,7 @@ func TestTsCache(t *testing.T) {
 			Messages:              dummyCid,
 			ParentMessageReceipts: dummyCid,
 			BlockSig:              &crypto.Signature{Type: crypto.SigTypeBLS},
-			BLSAggregate:          crypto.Signature{Type: crypto.SigTypeBLS},
+			BLSAggregate:          &crypto.Signature{Type: crypto.SigTypeBLS},
 		}})
 		if err != nil {
 			t.Fatal(err)
@@ -72,7 +72,7 @@ func TestTsCacheNulls(t *testing.T) {
 			Messages:              dummyCid,
 			ParentMessageReceipts: dummyCid,
 			BlockSig:              &crypto.Signature{Type: crypto.SigTypeBLS},
-			BLSAggregate:          crypto.Signature{Type: crypto.SigTypeBLS},
+			BLSAggregate:          &crypto.Signature{Type: crypto.SigTypeBLS},
 		}})
 		if err != nil {
 			t.Fatal(err)

chain/gen/genesis/genesis.go

@@ -5,10 +5,8 @@ import (
 	"encoding/json"
 
 	"github.com/filecoin-project/go-amt-ipld/v2"
-	"github.com/filecoin-project/specs-actors/actors/abi"
 	"github.com/filecoin-project/specs-actors/actors/builtin"
 	"github.com/filecoin-project/specs-actors/actors/builtin/account"
-	"github.com/filecoin-project/specs-actors/actors/crypto"
 	"github.com/filecoin-project/specs-actors/actors/runtime"
 	"github.com/ipfs/go-cid"
 	"github.com/ipfs/go-datastore"
@@ -254,10 +252,9 @@ func MakeGenesisBlock(ctx context.Context, bs bstore.Blockstore, sys runtime.Sys
 	}
 
 	b := &types.BlockHeader{
-		Miner:  builtin.InitActorAddr,
+		Miner:  builtin.SystemActorAddr,
 		Ticket: genesisticket,
 		EPostProof: types.EPostProof{
-			Proofs:   []abi.PoStProof{{ProofBytes: []byte("not a real proof")}},
 			PostRand: []byte("i guess this is kinda random"),
 		},
 		Parents:               []cid.Cid{},
@@ -266,8 +263,8 @@ func MakeGenesisBlock(ctx context.Context, bs bstore.Blockstore, sys runtime.Sys
 		ParentStateRoot:       stateroot,
 		Messages:              mmb.Cid(),
 		ParentMessageReceipts: emptyroot,
-		BLSAggregate:          crypto.Signature{Type: crypto.SigTypeBLS, Data: []byte("signatureeee")},
-		BlockSig:              &crypto.Signature{Type: crypto.SigTypeBLS, Data: []byte("block signatureeee")},
+		BLSAggregate:          nil,
+		BlockSig:              nil,
 		Timestamp:             template.Timestamp,
 	}
 

chain/gen/mining.go

@@ -133,7 +133,7 @@ func MinerCreateBlock(ctx context.Context, sm *stmgr.StateManager, w *wallet.Wal
 	return fullBlock, nil
 }
 
-func aggregateSignatures(sigs []crypto.Signature) (crypto.Signature, error) {
+func aggregateSignatures(sigs []crypto.Signature) (*crypto.Signature, error) {
 	var blsSigs []bls.Signature
 	for _, s := range sigs {
 		var bsig bls.Signature
@@ -142,7 +142,7 @@ func aggregateSignatures(sigs []crypto.Signature) (crypto.Signature, error) {
 	}
 
 	aggSig := bls.Aggregate(blsSigs)
-	return crypto.Signature{
+	return &crypto.Signature{
 		Type: crypto.SigTypeBLS,
 		Data: aggSig[:],
 	}, nil

chain/state/statetree.go

@@ -21,10 +21,12 @@ import (
 
 var log = logging.Logger("statetree")
 
+// Stores actors state by their ID.
 type StateTree struct {
 	root  *hamt.Node
 	Store cbor.IpldStore
 
+	// Maps ID addresses to actors.
 	actorcache map[address.Address]*types.Actor
 	snapshots  []cid.Cid
 }
@@ -70,6 +72,7 @@ func (st *StateTree) SetActor(addr address.Address, act *types.Actor) error {
 	return st.root.Set(context.TODO(), string(addr.Bytes()), act)
 }
 
+// `LookupID` gets the ID address of this actor's `addr` stored in the `InitActor`.
 func (st *StateTree) LookupID(addr address.Address) (address.Address, error) {
 	if addr.Protocol() == address.ID {
 		return addr, nil
@@ -92,11 +95,13 @@ func (st *StateTree) LookupID(addr address.Address) (address.Address, error) {
 	return a, nil
 }
 
+// GetActor returns the actor from any type of `addr` provided.
 func (st *StateTree) GetActor(addr address.Address) (*types.Actor, error) {
 	if addr == address.Undef {
 		return nil, fmt.Errorf("GetActor called on undefined address")
 	}
 
+	// Transform `addr` to its ID format.
 	iaddr, err := st.LookupID(addr)
 	if err != nil {
 		if xerrors.Is(err, init_.ErrAddressNotFound) {

chain/stmgr/stmgr.go

@@ -174,7 +174,7 @@ func (sm *StateManager) ApplyBlocks(ctx context.Context, pstate cid.Cid, bms []B
 		vmi.SetBlockMiner(b.Miner)
 
 		penalty := types.NewInt(0)
-		gasReward := types.NewInt(0)
+		gasReward := big.Zero()
 
 		for _, cm := range append(b.BlsMessages, b.SecpkMessages...) {
 			m := cm.VMMessage()
@@ -198,6 +198,7 @@ func (sm *StateManager) ApplyBlocks(ctx context.Context, pstate cid.Cid, bms []B
 			}
 
 			receipts = append(receipts, &r.MessageReceipt)
+			gasReward = big.Add(gasReward, big.NewInt(r.GasUsed))
 
 			if cb != nil {
 				if err := cb(cm.Cid(), m, r); err != nil {
@@ -429,6 +430,8 @@ func (sm *StateManager) LoadActorStateRaw(ctx context.Context, a address.Address
 	return act, nil
 }
 
+// Similar to `vm.ResolveToKeyAddr` but does not allow `Actor` type of addresses. Uses the `TipSet` `ts`
+// to generate the VM state.
 func (sm *StateManager) ResolveToKeyAddress(ctx context.Context, addr address.Address, ts *types.TipSet) (address.Address, error) {
 	switch addr.Protocol() {
 	case address.BLS, address.SECP256K1:

chain/store/store.go

@@ -30,16 +30,14 @@ import (
 
 	lru "github.com/hashicorp/golang-lru"
 	block "github.com/ipfs/go-block-format"
-	"github.com/ipfs/go-blockservice"
 	car "github.com/ipfs/go-car"
+	carutil "github.com/ipfs/go-car/util"
 	"github.com/ipfs/go-cid"
 	dstore "github.com/ipfs/go-datastore"
 	blockstore "github.com/ipfs/go-ipfs-blockstore"
 	bstore "github.com/ipfs/go-ipfs-blockstore"
 	cbor "github.com/ipfs/go-ipld-cbor"
-	format "github.com/ipfs/go-ipld-format"
 	logging "github.com/ipfs/go-log/v2"
-	dag "github.com/ipfs/go-merkledag"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	pubsub "github.com/whyrusleeping/pubsub"
 	"golang.org/x/xerrors"
@@ -734,7 +732,7 @@ func (cs *ChainStore) readMsgMetaCids(mmc cid.Cid) ([]cid.Cid, []cid.Cid, error)
 	cst := cbor.NewCborStore(cs.bs)
 	var msgmeta types.MsgMeta
 	if err := cst.Get(context.TODO(), mmc, &msgmeta); err != nil {
-		return nil, nil, xerrors.Errorf("failed to load msgmeta: %w", err)
+		return nil, nil, xerrors.Errorf("failed to load msgmeta (%s): %w", mmc, err)
 	}
 
 	blscids, err := cs.readAMTCids(msgmeta.BlsMessages)
@@ -972,14 +970,18 @@ func (cs *ChainStore) GetTipsetByHeight(ctx context.Context, h abi.ChainEpoch, t
 }
 
 func recurseLinks(bs blockstore.Blockstore, root cid.Cid, in []cid.Cid) ([]cid.Cid, error) {
+	if root.Prefix().Codec != cid.DagCBOR {
+		return in, nil
+	}
+
 	data, err := bs.Get(root)
 	if err != nil {
-		return nil, err
+		return nil, xerrors.Errorf("recurse links get (%s) failed: %w", root, err)
 	}
 
 	top, err := cbg.ScanForLinks(bytes.NewReader(data.RawData()))
 	if err != nil {
-		return nil, err
+		return nil, xerrors.Errorf("scanning for links failed: %w", err)
 	}
 
 	in = append(in, top...)
@@ -998,41 +1000,87 @@ func (cs *ChainStore) Export(ctx context.Context, ts *types.TipSet, w io.Writer)
 	if ts == nil {
 		ts = cs.GetHeaviestTipSet()
 	}
-	bsrv := blockservice.New(cs.bs, nil)
-	dserv := dag.NewDAGService(bsrv)
-	return car.WriteCarWithWalker(ctx, dserv, ts.Cids(), w, func(nd format.Node) ([]*format.Link, error) {
-		var b types.BlockHeader
-		if err := b.UnmarshalCBOR(bytes.NewBuffer(nd.RawData())); err != nil {
-			return nil, err
+
+	seen := cid.NewSet()
+
+	h := &car.CarHeader{
+		Roots:   ts.Cids(),
+		Version: 1,
+	}
+
+	if err := car.WriteHeader(h, w); err != nil {
+		return xerrors.Errorf("failed to write car header: %s", err)
+	}
+
+	blocksToWalk := ts.Cids()
+
+	walkChain := func(blk cid.Cid) error {
+		if !seen.Visit(blk) {
+			return nil
 		}
 
-		var out []*format.Link
-		for _, p := range b.Parents {
-			out = append(out, &format.Link{Cid: p})
-		}
-
-		cids, err := recurseLinks(cs.bs, b.Messages, nil)
+		data, err := cs.bs.Get(blk)
 		if err != nil {
-			return nil, err
+			return xerrors.Errorf("getting block: %w", err)
 		}
 
-		for _, c := range cids {
-			out = append(out, &format.Link{Cid: c})
+		if err := carutil.LdWrite(w, blk.Bytes(), data.RawData()); err != nil {
+			return xerrors.Errorf("failed to write block to car output: %w", err)
 		}
 
+		var b types.BlockHeader
+		if err := b.UnmarshalCBOR(bytes.NewBuffer(data.RawData())); err != nil {
+			return xerrors.Errorf("unmarshaling block header (cid=%s): %w", blk, err)
+		}
+
+		for _, p := range b.Parents {
+			blocksToWalk = append(blocksToWalk, p)
+		}
+
+		cids, err := recurseLinks(cs.bs, b.Messages, []cid.Cid{b.Messages})
+		if err != nil {
+			return xerrors.Errorf("recursing messages failed: %w", err)
+		}
+
+		out := cids
+
 		if b.Height == 0 {
-			cids, err := recurseLinks(cs.bs, b.ParentStateRoot, nil)
+			cids, err := recurseLinks(cs.bs, b.ParentStateRoot, []cid.Cid{b.ParentStateRoot})
 			if err != nil {
-				return nil, err
+				return xerrors.Errorf("recursing genesis state failed: %w", err)
 			}
 
-			for _, c := range cids {
-				out = append(out, &format.Link{Cid: c})
+			out = append(out, cids...)
+		}
+
+		for _, c := range out {
+			if seen.Visit(c) {
+				if c.Prefix().Codec != cid.DagCBOR {
+					continue
+				}
+				data, err := cs.bs.Get(c)
+				if err != nil {
+					return xerrors.Errorf("writing object to car (get %s): %w", c, err)
+				}
+
+				if err := carutil.LdWrite(w, c.Bytes(), data.RawData()); err != nil {
+					return xerrors.Errorf("failed to write out car object: %w", err)
+				}
 			}
 		}
 
-		return out, nil
-	})
+		return nil
+	}
+
+	for len(blocksToWalk) > 0 {
+		next := blocksToWalk[0]
+		blocksToWalk = blocksToWalk[1:]
+		if err := walkChain(next); err != nil {
+			return xerrors.Errorf("walk chain failed: %w", err)
+		}
+	}
+
+	return nil
 }
 
 func (cs *ChainStore) Import(r io.Reader) (*types.TipSet, error) {

chain/store/store_test.go

@@ -1,6 +1,7 @@
 package store_test
 
 import (
+	"bytes"
 	"context"
 	"testing"
 
@@ -13,6 +14,8 @@ import (
 	"github.com/filecoin-project/specs-actors/actors/abi/big"
 	"github.com/filecoin-project/specs-actors/actors/builtin/power"
 	"github.com/filecoin-project/specs-actors/actors/crypto"
+
+	datastore "github.com/ipfs/go-datastore"
 	blockstore "github.com/ipfs/go-ipfs-blockstore"
 )
 
@@ -70,3 +73,37 @@ func BenchmarkGetRandomness(b *testing.B) {
 		}
 	}
 }
+
+func TestChainExportImport(t *testing.T) {
+	cg, err := gen.NewGenerator()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	var last *types.TipSet
+	for i := 0; i < 100; i++ {
+		ts, err := cg.NextTipSet()
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		last = ts.TipSet.TipSet()
+	}
+
+	buf := new(bytes.Buffer)
+	if err := cg.ChainStore().Export(context.TODO(), last, buf); err != nil {
+		t.Fatal(err)
+	}
+
+	nbs := blockstore.NewBlockstore(datastore.NewMapDatastore())
+	cs := store.NewChainStore(nbs, datastore.NewMapDatastore(), nil)
+
+	root, err := cs.Import(buf)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !root.Equals(last) {
+		t.Fatal("imported chain differed from exported chain")
+	}
+}

chain/sync.go

@@ -5,10 +5,11 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/minio/blake2b-simd"
 	"sync"
 	"time"
 
+	"github.com/minio/blake2b-simd"
+
 	"github.com/filecoin-project/specs-actors/actors/abi"
 	"github.com/filecoin-project/specs-actors/actors/builtin"
 
@@ -779,7 +780,6 @@ func (syncer *Syncer) checkBlockMessages(ctx context.Context, b *types.FullBlock
 	}
 
 	nonces := make(map[address.Address]uint64)
-	balances := make(map[address.Address]types.BigInt)
 
 	stateroot, _, err := syncer.sm.TipSetState(ctx, baseTs)
 	if err != nil {
@@ -798,12 +798,12 @@ func (syncer *Syncer) checkBlockMessages(ctx context.Context, b *types.FullBlock
 		}
 
 		if _, ok := nonces[m.From]; !ok {
+			// `GetActor` does not validate that this is an account actor.
 			act, err := st.GetActor(m.From)
 			if err != nil {
 				return xerrors.Errorf("failed to get actor: %w", err)
 			}
 			nonces[m.From] = act.Nonce
-			balances[m.From] = act.Balance
 		}
 
 		if nonces[m.From] != m.Nonce {
@@ -811,11 +811,6 @@ func (syncer *Syncer) checkBlockMessages(ctx context.Context, b *types.FullBlock
 		}
 		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
 	}
 
@@ -836,6 +831,8 @@ func (syncer *Syncer) checkBlockMessages(ctx context.Context, b *types.FullBlock
 			return xerrors.Errorf("block had invalid secpk message at index %d: %w", i, err)
 		}
 
+		// `From` being an account actor is only validated inside the `vm.ResolveToKeyAddr` call
+		// in `StateManager.ResolveToKeyAddress` here (and not in `checkMsg`).
 		kaddr, err := syncer.sm.ResolveToKeyAddress(ctx, m.Message.From, baseTs)
 		if err != nil {
 			return xerrors.Errorf("failed to resolve key addr: %w", err)
@@ -874,7 +871,7 @@ func (syncer *Syncer) checkBlockMessages(ctx context.Context, b *types.FullBlock
 	return nil
 }
 
-func (syncer *Syncer) verifyBlsAggregate(ctx context.Context, sig crypto.Signature, msgs []cid.Cid, pubks []bls.PublicKey) error {
+func (syncer *Syncer) verifyBlsAggregate(ctx context.Context, sig *crypto.Signature, msgs []cid.Cid, pubks []bls.PublicKey) error {
 	_, span := trace.StartSpan(ctx, "syncer.verifyBlsAggregate")
 	defer span.End()
 	span.AddAttributes(

chain/types/actor.go

@@ -9,6 +9,7 @@ import (
 var ErrActorNotFound = init_.ErrAddressNotFound
 
 type Actor struct {
+	// Identifies the type of actor (string coded as a CID), see `chain/actors/actors.go`.
 	Code    cid.Cid
 	Head    cid.Cid
 	Nonce   uint64

chain/types/blockheader.go

@@ -53,7 +53,7 @@ type BlockHeader struct {
 
 	Messages cid.Cid // 8
 
-	BLSAggregate crypto.Signature // 9
+	BLSAggregate *crypto.Signature // 9
 
 	Timestamp uint64 // 10
 

chain/types/blockheader_test.go

@@ -36,7 +36,7 @@ func testBlockHeader(t testing.TB) *BlockHeader {
 		},
 		Parents:               []cid.Cid{c, c},
 		ParentMessageReceipts: c,
-		BLSAggregate:          crypto.Signature{Type: crypto.SigTypeBLS, Data: []byte("boo! im a signature")},
+		BLSAggregate:          &crypto.Signature{Type: crypto.SigTypeBLS, Data: []byte("boo! im a signature")},
 		ParentWeight:          NewInt(123125126212),
 		Messages:              c,
 		Height:                85919298723,

chain/types/cbor_gen.go

@@ -9,7 +9,7 @@ import (
 	"github.com/filecoin-project/specs-actors/actors/abi"
 	"github.com/filecoin-project/specs-actors/actors/crypto"
 	"github.com/filecoin-project/specs-actors/actors/runtime/exitcode"
-	"github.com/ipfs/go-cid"
+	cid "github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	xerrors "golang.org/x/xerrors"
 )
@@ -133,7 +133,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.Miner.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.Miner: %w", err)
 		}
 
 	}
@@ -153,7 +153,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 		} else {
 			t.Ticket = new(Ticket)
 			if err := t.Ticket.UnmarshalCBOR(br); err != nil {
-				return err
+				return xerrors.Errorf("unmarshaling t.Ticket pointer: %w", err)
 			}
 		}
 
@@ -163,7 +163,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.EPostProof.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.EPostProof: %w", err)
 		}
 
 	}
@@ -198,7 +198,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.ParentWeight.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.ParentWeight: %w", err)
 		}
 
 	}
@@ -267,9 +267,21 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 
 	{
 
-		if err := t.BLSAggregate.UnmarshalCBOR(br); err != nil {
+		pb, err := br.PeekByte()
+		if err != nil {
 			return err
 		}
+		if pb == cbg.CborNull[0] {
+			var nbuf [1]byte
+			if _, err := br.Read(nbuf[:]); err != nil {
+				return err
+			}
+		} else {
+			t.BLSAggregate = new(crypto.Signature)
+			if err := t.BLSAggregate.UnmarshalCBOR(br); err != nil {
+				return xerrors.Errorf("unmarshaling t.BLSAggregate pointer: %w", err)
+			}
+		}
 
 	}
 	// t.Timestamp (uint64) (uint64)
@@ -302,7 +314,7 @@ func (t *BlockHeader) UnmarshalCBOR(r io.Reader) error {
 		} else {
 			t.BlockSig = new(crypto.Signature)
 			if err := t.BlockSig.UnmarshalCBOR(br); err != nil {
-				return err
+				return xerrors.Errorf("unmarshaling t.BlockSig pointer: %w", err)
 			}
 		}
 
@@ -707,7 +719,7 @@ func (t *Message) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.To.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.To: %w", err)
 		}
 
 	}
@@ -716,7 +728,7 @@ func (t *Message) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.From.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.From: %w", err)
 		}
 
 	}
@@ -739,7 +751,7 @@ func (t *Message) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.Value.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.Value: %w", err)
 		}
 
 	}
@@ -748,7 +760,7 @@ func (t *Message) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.GasPrice.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.GasPrice: %w", err)
 		}
 
 	}
@@ -852,7 +864,7 @@ func (t *SignedMessage) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.Message.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.Message: %w", err)
 		}
 
 	}
@@ -861,7 +873,7 @@ func (t *SignedMessage) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.Signature.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.Signature: %w", err)
 		}
 
 	}
@@ -1026,7 +1038,7 @@ func (t *Actor) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.Balance.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.Balance: %w", err)
 		}
 
 	}
@@ -1238,7 +1250,7 @@ func (t *BlockMsg) UnmarshalCBOR(r io.Reader) error {
 		} else {
 			t.Header = new(BlockHeader)
 			if err := t.Header.UnmarshalCBOR(br); err != nil {
-				return err
+				return xerrors.Errorf("unmarshaling t.Header pointer: %w", err)
 			}
 		}
 

chain/types/mock/chain.go

@@ -68,7 +68,7 @@ func MkBlock(parents *types.TipSet, weightInc uint64, ticketNonce uint64) *types
 		},
 		Parents:               pcids,
 		ParentMessageReceipts: c,
-		BLSAggregate:          crypto.Signature{Type: crypto.SigTypeBLS, Data: []byte("boo! im a signature")},
+		BLSAggregate:          &crypto.Signature{Type: crypto.SigTypeBLS, Data: []byte("boo! im a signature")},
 		ParentWeight:          weight,
 		Messages:              c,
 		Height:                height,

chain/types/vmcontext.go

@@ -21,6 +21,7 @@ type Storage interface {
 
 type StateTree interface {
 	SetActor(addr address.Address, act *Actor) error
+	// GetActor returns the actor from any type of `addr` provided.
 	GetActor(addr address.Address) (*Actor, error)
 }
 

chain/validation/state.go

@@ -171,8 +171,8 @@ func (a *actorWrapper) Head() cid.Cid {
 	return a.Actor.Head
 }
 
-func (a *actorWrapper) CallSeqNum() int64 {
-	return int64(a.Actor.Nonce)
+func (a *actorWrapper) CallSeqNum() uint64 {
+	return a.Actor.Nonce
 }
 
 func (a *actorWrapper) Balance() big.Int {

chain/vm/invoker.go

@@ -6,6 +6,9 @@ import (
 	"fmt"
 	"reflect"
 
+	"github.com/filecoin-project/specs-actors/actors/builtin/account"
+	"github.com/filecoin-project/specs-actors/actors/runtime/exitcode"
+
 	"github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	"golang.org/x/xerrors"
@@ -53,23 +56,20 @@ func NewInvoker() *invoker {
 	inv.Register(builtin.StorageMinerActorCodeID, miner.Actor{}, miner.State{})
 	inv.Register(builtin.MultisigActorCodeID, multisig.Actor{}, multisig.State{})
 	inv.Register(builtin.PaymentChannelActorCodeID, paych.Actor{}, paych.State{})
+	inv.Register(builtin.AccountActorCodeID, account.Actor{}, account.State{})
 
 	return inv
 }
 
 func (inv *invoker) Invoke(act *types.Actor, rt runtime.Runtime, method abi.MethodNum, params []byte) ([]byte, aerrors.ActorError) {
 
-	if act.Code == builtin.AccountActorCodeID {
-		return nil, aerrors.Newf(254, "cannot invoke methods on account actors")
-	}
-
 	code, ok := inv.builtInCode[act.Code]
 	if !ok {
 		log.Errorf("no code for actor %s (Addr: %s)", act.Code, rt.Message().Receiver())
-		return nil, aerrors.Newf(255, "no code for actor %s(%d)(%s)", act.Code, method, hex.EncodeToString(params))
+		return nil, aerrors.Newf(byte(exitcode.SysErrorIllegalActor), "no code for actor %s(%d)(%s)", act.Code, method, hex.EncodeToString(params))
 	}
 	if method >= abi.MethodNum(len(code)) || code[method] == nil {
-		return nil, aerrors.Newf(255, "no method %d on actor", method)
+		return nil, aerrors.Newf(byte(exitcode.SysErrInvalidMethod), "no method %d on actor", method)
 	}
 	return code[method](act, rt, params)
 

chain/vm/mkactor.go

@@ -26,6 +26,7 @@ func init() {
 
 var EmptyObjectCid cid.Cid
 
+// Creates account actors from only BLS/SECP256K1 addresses.
 func TryCreateAccountActor(st *state.StateTree, addr address.Address) (*types.Actor, aerrors.ActorError) {
 	act, err := makeActor(st, addr)
 	if err != nil {
@@ -73,10 +74,18 @@ func NewBLSAccountActor(st *state.StateTree, addr address.Address) (*types.Actor
 }
 
 func NewSecp256k1AccountActor(st *state.StateTree, addr address.Address) (*types.Actor, aerrors.ActorError) {
+	var acstate account.State
+	acstate.Address = addr
+
+	c, err := st.Store.Put(context.TODO(), &acstate)
+	if err != nil {
+		return nil, aerrors.Escalate(err, "serializing account actor state")
+	}
+
 	nact := &types.Actor{
 		Code:    builtin.AccountActorCodeID,
 		Balance: types.NewInt(0),
-		Head:    EmptyObjectCid,
+		Head:    c,
 	}
 
 	return nact, nil

chain/vm/runtime.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/binary"
+	"fmt"
 
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/specs-actors/actors/abi"
@@ -47,10 +48,10 @@ type Runtime struct {
 	numActorsCreated   uint64
 }
 
-func (rs *Runtime) ResolveAddress(address address.Address) (ret address.Address, ok bool) {
-	r, err := rs.LookupID(address)
+func (rt *Runtime) ResolveAddress(address address.Address) (ret address.Address, ok bool) {
+	r, err := rt.state.LookupID(address)
 	if err != nil { // TODO: check notfound
-		rs.Abortf(exitcode.ErrPlaceholder, "resolve address: %v", err)
+		rt.Abortf(exitcode.ErrPlaceholder, "resolve address: %v", err)
 	}
 	return r, true
 }
@@ -106,17 +107,17 @@ func (rs *Runtime) shimCall(f func() interface{}) (rval []byte, aerr aerrors.Act
 }
 
 func (rs *Runtime) Message() vmr.Message {
-	var err error
+	var ok bool
 
 	rawm := *rs.msg
-	rawm.From, err = rs.LookupID(rawm.From)
-	if err != nil {
-		rs.Abortf(exitcode.ErrPlaceholder, "resolve from address: %v", err)
+	rawm.From, ok = rs.ResolveAddress(rawm.From)
+	if !ok {
+		rs.Abortf(exitcode.ErrPlaceholder, "resolve from address failed")
 	}
 
-	rawm.To, err = rs.LookupID(rawm.To)
-	if err != nil {
-		rs.Abortf(exitcode.ErrPlaceholder, "resolve to address: %v", err)
+	rawm.To, ok = rs.ResolveAddress(rawm.To)
+	if !ok {
+		rs.Abortf(exitcode.ErrPlaceholder, "resolve to address failed")
 	}
 
 	return &rawm
@@ -158,7 +159,8 @@ func (rs *Runtime) Store() vmr.Store {
 
 func (rt *Runtime) NewActorAddress() address.Address {
 	var b bytes.Buffer
-	if err := rt.origin.MarshalCBOR(&b); err != nil { // todo: spec says cbor; why not just bytes?
+	oa, _ := ResolveToKeyAddr(rt.vm.cstate, rt.vm.cst, rt.origin)
+	if err := oa.MarshalCBOR(&b); err != nil { // todo: spec says cbor; why not just bytes?
 		rt.Abortf(exitcode.ErrSerialization, "writing caller address into a buffer: %v", err)
 	}
 
@@ -218,8 +220,8 @@ func (rs *Runtime) StartSpan(name string) vmr.TraceSpan {
 }
 
 func (rt *Runtime) ValidateImmediateCallerIs(as ...address.Address) {
-	imm, err := rt.LookupID(rt.Message().Caller())
-	if err != nil {
+	imm, ok := rt.ResolveAddress(rt.Message().Caller())
+	if !ok {
 		rt.Abortf(exitcode.ErrIllegalState, "couldn't resolve immediate caller")
 	}
 
@@ -228,7 +230,7 @@ func (rt *Runtime) ValidateImmediateCallerIs(as ...address.Address) {
 			return
 		}
 	}
-	rt.Abortf(exitcode.ErrForbidden, "caller %s is not one of %s", rt.Message().Caller(), as)
+	rt.Abortf(exitcode.SysErrForbidden, "caller %s is not one of %s", rt.Message().Caller(), as)
 }
 
 func (rt *Runtime) Context() context.Context {
@@ -236,6 +238,7 @@ func (rt *Runtime) Context() context.Context {
 }
 
 func (rs *Runtime) Abortf(code exitcode.ExitCode, msg string, args ...interface{}) {
+	log.Error("Abortf: ", fmt.Sprintf(msg, args...))
 	panic(aerrors.NewfSkip(2, uint8(code), msg, args...))
 }
 
@@ -253,7 +256,7 @@ func (rt *Runtime) ValidateImmediateCallerType(ts ...cid.Cid) {
 			return
 		}
 	}
-	rt.Abortf(exitcode.ErrForbidden, "caller cid type %q was not one of %v", callerCid, ts)
+	rt.Abortf(exitcode.SysErrForbidden, "caller cid type %q was not one of %v", callerCid, ts)
 }
 
 func (rs *Runtime) CurrEpoch() abi.ChainEpoch {
@@ -384,10 +387,6 @@ func (ssh *shimStateHandle) Transaction(obj vmr.CBORer, f func() interface{}) in
 	return out
 }
 
-func (rt *Runtime) LookupID(a address.Address) (address.Address, error) {
-	return rt.state.LookupID(a)
-}
-
 func (rt *Runtime) GetBalance(a address.Address) (types.BigInt, aerrors.ActorError) {
 	act, err := rt.state.GetActor(a)
 	switch err {

chain/vm/validation_test.go

@@ -36,11 +36,7 @@ func init() {
 	// initialize the test skipper with tests being skipped
 	TestSuiteSkipper = TestSkipper{testSkips: []suites.TestCase{
 		/* tests to skip go here */
-		tipset.TestInternalMessageApplicationFailure,
-		tipset.TestInvalidSenderAddress,
-		tipset.TestBlockMessageDeduplication,
-		tipset.TestMinerSubmitFallbackPoSt,
-		tipset.TestMinerMissPoStChallengeWindow,
+		tipset.TestMinerRewardsAndPenalties,
 	}}
 }
 

chain/vm/vm.go

@@ -66,6 +66,7 @@ type ExecutionResult struct {
 
 // Send allows the current execution context to invoke methods on other actors in the system
 
+// ResolveToKeyAddr returns the public key type of address (`BLS`/`SECP256K1`) of an account actor identified by `addr`.
 func ResolveToKeyAddr(state types.StateTree, cst cbor.IpldStore, addr address.Address) (address.Address, aerrors.ActorError) {
 	if addr.Protocol() == address.BLS || addr.Protocol() == address.SECP256K1 {
 		return addr, nil
@@ -73,11 +74,11 @@ func ResolveToKeyAddr(state types.StateTree, cst cbor.IpldStore, addr address.Ad
 
 	act, err := state.GetActor(addr)
 	if err != nil {
-		return address.Undef, aerrors.Newf(1, "failed to find actor: %s", addr)
+		return address.Undef, aerrors.Newf(byte(exitcode.SysErrActorNotFound), "failed to find actor: %s", addr)
 	}
 
 	if act.Code != builtin.AccountActorCodeID {
-		return address.Undef, aerrors.New(1, "address was not for an account actor")
+		return address.Undef, aerrors.Fatalf("address %s was not for an account actor", addr)
 	}
 
 	var aast account.State
@@ -190,30 +191,9 @@ type ApplyRet struct {
 
 func (vm *VM) send(ctx context.Context, msg *types.Message, parent *Runtime,
 	gasCharge int64) ([]byte, aerrors.ActorError, *Runtime) {
-
 	st := vm.cstate
-
-	fromActor, err := st.GetActor(msg.From)
-	if err != nil {
-		return nil, aerrors.Absorb(err, 1, "could not find source actor"), nil
-	}
-
 	gasUsed := gasCharge
 
-	toActor, err := st.GetActor(msg.To)
-	if err != nil {
-		if xerrors.Is(err, init_.ErrAddressNotFound) {
-			a, err := TryCreateAccountActor(st, msg.To)
-			if err != nil {
-				return nil, aerrors.Absorb(err, 1, "could not create account"), nil
-			}
-			toActor = a
-			gasUsed += PricelistByEpoch(vm.blockHeight).OnCreateActor()
-		} else {
-			return nil, aerrors.Escalate(err, "getting actor"), nil
-		}
-	}
-
 	origin := msg.From
 	on := msg.Nonce
 	var nac uint64 = 0
@@ -223,6 +203,7 @@ func (vm *VM) send(ctx context.Context, msg *types.Message, parent *Runtime,
 		on = parent.originNonce
 		nac = parent.numActorsCreated
 	}
+
 	rt := vm.makeRuntime(ctx, msg, origin, on, gasUsed, nac)
 	if parent != nil {
 		defer func() {
@@ -230,13 +211,27 @@ func (vm *VM) send(ctx context.Context, msg *types.Message, parent *Runtime,
 		}()
 	}
 
+	toActor, err := st.GetActor(msg.To)
+	if err != nil {
+		if xerrors.Is(err, init_.ErrAddressNotFound) {
+			a, err := TryCreateAccountActor(st, msg.To)
+			if err != nil {
+				return nil, aerrors.Absorb(err, 1, "could not create account"), rt
+			}
+			toActor = a
+			gasUsed += PricelistByEpoch(vm.blockHeight).OnCreateActor()
+		} else {
+			return nil, aerrors.Escalate(err, "getting actor"), rt
+		}
+	}
+
 	aerr := rt.chargeGasSafe(rt.Pricelist().OnMethodInvocation(msg.Value, msg.Method))
 	if aerr != nil {
 		return nil, aerr, rt
 	}
 
 	if types.BigCmp(msg.Value, types.NewInt(0)) != 0 {
-		if err := Transfer(fromActor, toActor, msg.Value); err != nil {
+		if err := vm.transfer(msg.From, msg.To, msg.Value); err != nil {
 			return nil, aerrors.Absorb(err, 1, "failed to transfer funds"), nil
 		}
 	}
@@ -335,11 +330,13 @@ func (vm *VM) ApplyMessage(ctx context.Context, msg *types.Message) (*ApplyRet,
 	}
 
 	gasHolder := &types.Actor{Balance: types.NewInt(0)}
-	if err := Transfer(fromActor, gasHolder, gascost); err != nil {
+	if err := vm.transferToGasHolder(msg.From, gasHolder, gascost); err != nil {
 		return nil, xerrors.Errorf("failed to withdraw gas funds: %w", err)
 	}
 
-	fromActor.Nonce++
+	if err := vm.incrementNonce(msg.From); err != nil {
+		return nil, err
+	}
 
 	if err := st.Snapshot(ctx); err != nil {
 		return nil, xerrors.Errorf("snapshot failed: %w", err)
@@ -347,8 +344,14 @@ func (vm *VM) ApplyMessage(ctx context.Context, msg *types.Message) (*ApplyRet,
 	defer st.ClearSnapshot()
 
 	ret, actorErr, rt := vm.send(ctx, msg, nil, msgGasCost)
+	if aerrors.IsFatal(actorErr) {
+		return nil, xerrors.Errorf("[from=%s,to=%s,n=%d,m=%d,h=%d] fatal error: %w", msg.From, msg.To, msg.Nonce, msg.Method, vm.blockHeight, actorErr)
+	}
 
 	{
+		if rt == nil {
+			return nil, xerrors.Errorf("send returned nil runtime, send error was: %s", actorErr)
+		}
 		actorErr2 := rt.chargeGasSafe(rt.Pricelist().OnChainReturnValue(len(ret)))
 		if actorErr == nil {
 			//TODO: Ambigous what to do in this case
@@ -356,9 +359,6 @@ func (vm *VM) ApplyMessage(ctx context.Context, msg *types.Message) (*ApplyRet,
 		}
 	}
 
-	if aerrors.IsFatal(actorErr) {
-		return nil, xerrors.Errorf("[from=%s,to=%s,n=%d,m=%d,h=%d] fatal error: %w", msg.From, msg.To, msg.Nonce, msg.Method, vm.blockHeight, actorErr)
-	}
 	if actorErr != nil {
 		log.Warnw("Send actor error", "from", msg.From, "to", msg.To, "nonce", msg.Nonce, "method", msg.Method, "height", vm.blockHeight, "error", fmt.Sprintf("%+v", actorErr))
 	}
@@ -379,18 +379,13 @@ func (vm *VM) ApplyMessage(ctx context.Context, msg *types.Message) (*ApplyRet,
 		}
 		// refund unused gas
 		refund := types.BigMul(types.NewInt(uint64(msg.GasLimit-gasUsed)), msg.GasPrice)
-		if err := Transfer(gasHolder, fromActor, refund); err != nil {
+		if err := vm.transferFromGasHolder(msg.From, gasHolder, refund); err != nil {
 			return nil, xerrors.Errorf("failed to refund gas")
 		}
 	}
 
-	rwAct, err := st.GetActor(builtin.RewardActorAddr)
-	if err != nil {
-		return nil, xerrors.Errorf("getting burnt funds actor failed: %w", err)
-	}
-
 	gasReward := types.BigMul(msg.GasPrice, types.NewInt(uint64(gasUsed)))
-	if err := Transfer(gasHolder, rwAct, gasReward); err != nil {
+	if err := vm.transferFromGasHolder(builtin.RewardActorAddr, gasHolder, gasReward); err != nil {
 		return nil, xerrors.Errorf("failed to give miner gas reward: %w", err)
 	}
 
@@ -578,7 +573,21 @@ func (vm *VM) Invoke(act *types.Actor, rt *Runtime, method abi.MethodNum, params
 	return ret, nil
 }
 
-func Transfer(from, to *types.Actor, amt types.BigInt) error {
+func (vm *VM) SetInvoker(i *invoker) {
+	vm.inv = i
+}
+
+func (vm *VM) incrementNonce(addr address.Address) error {
+	a, err := vm.cstate.GetActor(addr)
+	if err != nil {
+		return xerrors.Errorf("nonce increment of sender failed")
+	}
+
+	a.Nonce++
+	return nil
+}
+
+func (vm *VM) transfer(from, to address.Address, amt types.BigInt) error {
 	if from == to {
 		return nil
 	}
@@ -587,15 +596,55 @@ func Transfer(from, to *types.Actor, amt types.BigInt) error {
 		return xerrors.Errorf("attempted to transfer negative value")
 	}
 
-	if err := deductFunds(from, amt); err != nil {
+	f, err := vm.cstate.GetActor(from)
+	if err != nil {
+		return xerrors.Errorf("transfer failed when retrieving sender actor")
+	}
+
+	t, err := vm.cstate.GetActor(to)
+	if err != nil {
+		return xerrors.Errorf("transfer failed when retrieving receiver actor")
+	}
+
+	if err := deductFunds(f, amt); err != nil {
 		return err
 	}
-	depositFunds(to, amt)
+	depositFunds(t, amt)
 	return nil
 }
 
-func (vm *VM) SetInvoker(i *invoker) {
-	vm.inv = i
+func (vm *VM) transferToGasHolder(addr address.Address, gasHolder *types.Actor, amt types.BigInt) error {
+	if amt.LessThan(types.NewInt(0)) {
+		return xerrors.Errorf("attempted to transfer negative value to gas holder")
+	}
+
+	a, err := vm.cstate.GetActor(addr)
+	if err != nil {
+		return xerrors.Errorf("transfer to gas holder failed when retrieving sender actor")
+	}
+
+	if err := deductFunds(a, amt); err != nil {
+		return err
+	}
+	depositFunds(gasHolder, amt)
+	return nil
+}
+
+func (vm *VM) transferFromGasHolder(addr address.Address, gasHolder *types.Actor, amt types.BigInt) error {
+	if amt.LessThan(types.NewInt(0)) {
+		return xerrors.Errorf("attempted to transfer negative value from gas holder")
+	}
+
+	a, err := vm.cstate.GetActor(addr)
+	if err != nil {
+		return xerrors.Errorf("transfer from gas holder failed when retrieving receiver actor")
+	}
+
+	if err := deductFunds(gasHolder, amt); err != nil {
+		return err
+	}
+	depositFunds(a, amt)
+	return nil
 }
 
 func deductFunds(act *types.Actor, amt types.BigInt) error {

go.mod

@@ -10,9 +10,10 @@ require (
 	github.com/Gurpartap/async v0.0.0-20180927173644-4f7f499dd9ee
 	github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect
 	github.com/coreos/go-systemd/v22 v22.0.0
+	github.com/davidlazar/go-crypto v0.0.0-20190912175916-7055855a373f // indirect
 	github.com/docker/go-units v0.4.0
 	github.com/elastic/go-sysinfo v1.3.0
-	github.com/filecoin-project/chain-validation v0.0.6-0.20200320210432-2793319e9867
+	github.com/filecoin-project/chain-validation v0.0.6-0.20200324001434-7c1ecd76e3eb
 	github.com/filecoin-project/filecoin-ffi v0.0.0-20200304181354-4446ff8a1bb9
 	github.com/filecoin-project/go-address v0.0.2-0.20200218010043-eb9bb40ed5be
 	github.com/filecoin-project/go-amt-ipld/v2 v2.0.1-0.20200131012142-05d80eeccc5e
@@ -26,7 +27,7 @@ require (
 	github.com/filecoin-project/go-sectorbuilder v0.0.2-0.20200317221918-42574fc2aab9
 	github.com/filecoin-project/go-statemachine v0.0.0-20200226041606-2074af6d51d9
 	github.com/filecoin-project/go-statestore v0.1.0
-	github.com/filecoin-project/specs-actors v0.0.0-20200312030511-3f5510bf6130
+	github.com/filecoin-project/specs-actors v0.0.0-20200321055844-54fa2e8da1c2
 	github.com/filecoin-project/specs-storage v0.0.0-20200317133846-063ba163b217
 	github.com/gbrlsnchs/jwt/v3 v3.0.0-beta.1
 	github.com/go-ole/go-ole v1.2.4 // indirect
@@ -41,7 +42,7 @@ require (
 	github.com/ipfs/go-blockservice v0.1.3-0.20190908200855-f22eea50656c
 	github.com/ipfs/go-car v0.0.3-0.20200304012825-b6769248bfef
 	github.com/ipfs/go-cid v0.0.5
-	github.com/ipfs/go-datastore v0.4.2
+	github.com/ipfs/go-datastore v0.4.4
 	github.com/ipfs/go-ds-badger2 v0.0.0-20200211201106-609c9d2a39c7
 	github.com/ipfs/go-filestore v0.0.2
 	github.com/ipfs/go-fs-lock v0.0.1
@@ -62,16 +63,19 @@ require (
 	github.com/ipfs/go-path v0.0.7
 	github.com/ipfs/go-unixfs v0.2.2-0.20190827150610-868af2e9e5cb
 	github.com/ipld/go-ipld-prime v0.0.2-0.20191108012745-28a82f04c785
+	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
+	github.com/jbenet/go-temp-err-catcher v0.1.0 // indirect
 	github.com/lib/pq v1.2.0
-	github.com/libp2p/go-libp2p v0.5.2
+	github.com/libp2p/go-eventbus v0.1.0
+	github.com/libp2p/go-libp2p v0.6.0
 	github.com/libp2p/go-libp2p-circuit v0.1.4
 	github.com/libp2p/go-libp2p-connmgr v0.1.0
-	github.com/libp2p/go-libp2p-core v0.3.0
+	github.com/libp2p/go-libp2p-core v0.5.0
 	github.com/libp2p/go-libp2p-discovery v0.2.0
 	github.com/libp2p/go-libp2p-kad-dht v0.1.1
-	github.com/libp2p/go-libp2p-mplex v0.2.1
+	github.com/libp2p/go-libp2p-mplex v0.2.2
 	github.com/libp2p/go-libp2p-peer v0.2.0
-	github.com/libp2p/go-libp2p-peerstore v0.1.4
+	github.com/libp2p/go-libp2p-peerstore v0.2.0
 	github.com/libp2p/go-libp2p-pubsub v0.2.6
 	github.com/libp2p/go-libp2p-quic-transport v0.1.1
 	github.com/libp2p/go-libp2p-record v0.1.1
@@ -79,34 +83,39 @@ require (
 	github.com/libp2p/go-libp2p-secio v0.2.1
 	github.com/libp2p/go-libp2p-swarm v0.2.2
 	github.com/libp2p/go-libp2p-tls v0.1.0
-	github.com/libp2p/go-libp2p-yamux v0.2.1
+	github.com/libp2p/go-libp2p-yamux v0.2.5
 	github.com/libp2p/go-maddr-filter v0.0.5
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1
 	github.com/minio/sha256-simd v0.1.1
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/multiformats/go-base32 v0.0.3
-	github.com/multiformats/go-multiaddr v0.2.0
+	github.com/multiformats/go-multiaddr v0.2.1
 	github.com/multiformats/go-multiaddr-dns v0.2.0
-	github.com/multiformats/go-multiaddr-net v0.1.2
+	github.com/multiformats/go-multiaddr-net v0.1.3
 	github.com/multiformats/go-multihash v0.0.13
 	github.com/opentracing/opentracing-go v1.1.0
-	github.com/prometheus/common v0.4.0
+	github.com/prometheus/common v0.4.0 // indirect
 	github.com/stretchr/testify v1.4.0
 	github.com/whyrusleeping/bencher v0.0.0-20190829221104-bb6607aa8bba
-	github.com/whyrusleeping/cbor-gen v0.0.0-20200222160900-51052a1e8191
+	github.com/whyrusleeping/cbor-gen v0.0.0-20200321164527-9340289d0ca7
 	github.com/whyrusleeping/multiaddr-filter v0.0.0-20160516205228-e903e4adabd7
 	github.com/whyrusleeping/pubsub v0.0.0-20131020042734-02de8aa2db3d
-	go.opencensus.io v0.22.2
+	go.opencensus.io v0.22.3
 	go.uber.org/dig v1.8.0 // indirect
 	go.uber.org/fx v1.9.0
 	go.uber.org/goleak v1.0.0 // indirect
-	go.uber.org/multierr v1.4.0
-	go.uber.org/zap v1.13.0
-	golang.org/x/sys v0.0.0-20191210023423-ac6580df4449
+	go.uber.org/multierr v1.5.0
+	go.uber.org/zap v1.14.1
+	golang.org/x/crypto v0.0.0-20200317142112-1b76d66859c6 // indirect
+	golang.org/x/lint v0.0.0-20200302205851-738671d3881b // indirect
+	golang.org/x/net v0.0.0-20200301022130-244492dfa37a // indirect
+	golang.org/x/sys v0.0.0-20200317113312-5766fd39f98d
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
+	golang.org/x/tools v0.0.0-20200318150045-ba25ddc85566 // indirect
 	golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543
 	gopkg.in/urfave/cli.v2 v2.0.0-20180128182452-d3ae77c26ac8
 	gotest.tools v2.2.0+incompatible
+	honnef.co/go/tools v0.0.1-2020.1.3 // indirect
 	launchpad.net/gocheck v0.0.0-20140225173054-000000000087 // indirect
 )
 

go.sum

@@ -28,9 +28,7 @@ github.com/Stebalien/go-bitfield v0.0.1/go.mod h1:GNjFpasyUVkHMsfEOk8EFLJ9syQ6SI
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/akavel/rsrc v0.8.0 h1:zjWn7ukO9Kc5Q62DOJCcxGpXC18RawVtYAGdz2aLlfw=
 github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf h1:qet1QNfXsQxTZqLG4oE62mJzwPIB8+Tee4RNCL9ulrY=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/apache/thrift v0.12.0 h1:pODnxUFNcjP9UTLZGTdeh+j16A8lJbRvD3rOtrk/7bs=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
@@ -78,6 +76,9 @@ github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davidlazar/go-crypto v0.0.0-20170701192655-dcfb0a7ac018/go.mod h1:rQYf4tfk5sSwFsnDg3qYaBxSjsD9S8+59vW0dKUgme4=
+github.com/davidlazar/go-crypto v0.0.0-20190912175916-7055855a373f h1:BOaYiTvg8p9vBUXpklC22XSK/mifLF7lG9jtmYYi3Tc=
+github.com/davidlazar/go-crypto v0.0.0-20190912175916-7055855a373f/go.mod h1:rQYf4tfk5sSwFsnDg3qYaBxSjsD9S8+59vW0dKUgme4=
 github.com/dgraph-io/badger v1.5.5-0.20190226225317-8115aed38f8f/go.mod h1:VZxzAIRPHRVNRKRo6AXrX9BJegn6il06VMTZVJYCIjQ=
 github.com/dgraph-io/badger v1.6.0-rc1/go.mod h1:zwt7syl517jmP8s94KqSxTlM6IMsdhYy6psNgSztDR4=
 github.com/dgraph-io/badger v1.6.0 h1:DshxFxZWXUcO0xX476VJC07Xsr6ZCBVRHKZ93Oh7Evo=
@@ -102,9 +103,8 @@ github.com/elastic/go-windows v1.0.0 h1:qLURgZFkkrYyTTkvYpsZIgf83AUsdIHfvlJaqaZ7
 github.com/elastic/go-windows v1.0.0/go.mod h1:TsU0Nrp7/y3+VwE82FoZF8gC/XFg/Elz6CcloAxnPgU=
 github.com/fatih/color v1.8.0 h1:5bzFgL+oy7JITMTxUPJ00n7VxmYd/PdMp5mHFX40/RY=
 github.com/fatih/color v1.8.0/go.mod h1:3l45GVGkyrnYNl9HoIjnp2NnNWvh6hLAqD8yTfGjnw8=
-github.com/filecoin-project/chain-validation v0.0.6-0.20200320210432-2793319e9867 h1:6+9Khz+vidBfWG7xQ6a2uRpLnd3RhMVcOwJxu3XhvgI=
-github.com/filecoin-project/chain-validation v0.0.6-0.20200320210432-2793319e9867/go.mod h1:YTLxUr6gOZpkUaXzLe7OZ4s1dpfJGp2FY/J2/K5DJqc=
-github.com/filecoin-project/go-address v0.0.0-20200107215422-da8eea2842b5 h1:/MmWluswvDIbuPvBct4q6HeQgVm62O2DzWYTB38kt4A=
+github.com/filecoin-project/chain-validation v0.0.6-0.20200324001434-7c1ecd76e3eb h1:tynvU1AYRXYAzRrMX6VZGYgUg3+/lweulbAyeZqET/I=
+github.com/filecoin-project/chain-validation v0.0.6-0.20200324001434-7c1ecd76e3eb/go.mod h1:YTLxUr6gOZpkUaXzLe7OZ4s1dpfJGp2FY/J2/K5DJqc=
 github.com/filecoin-project/go-address v0.0.0-20200107215422-da8eea2842b5/go.mod h1:SAOwJoakQ8EPjwNIsiakIQKsoKdkcbx8U3IapgCg9R0=
 github.com/filecoin-project/go-address v0.0.2-0.20200218010043-eb9bb40ed5be h1:TooKBwR/g8jG0hZ3lqe9S5sy2vTUcLOZLlz3M5wGn2E=
 github.com/filecoin-project/go-address v0.0.2-0.20200218010043-eb9bb40ed5be/go.mod h1:SAOwJoakQ8EPjwNIsiakIQKsoKdkcbx8U3IapgCg9R0=
@@ -137,15 +137,14 @@ github.com/filecoin-project/specs-actors v0.0.0-20200210130641-2d1fbd8672cf/go.m
 github.com/filecoin-project/specs-actors v0.0.0-20200226200336-94c9b92b2775/go.mod h1:0HAWYrvajFHDgRaKbF0rl+IybVLZL5z4gQ8koCMPhoU=
 github.com/filecoin-project/specs-actors v0.0.0-20200302223606-0eaf97b10aaf/go.mod h1:0HAWYrvajFHDgRaKbF0rl+IybVLZL5z4gQ8koCMPhoU=
 github.com/filecoin-project/specs-actors v0.0.0-20200306000749-99e98e61e2a0/go.mod h1:0HAWYrvajFHDgRaKbF0rl+IybVLZL5z4gQ8koCMPhoU=
-github.com/filecoin-project/specs-actors v0.0.0-20200312030511-3f5510bf6130 h1:atiWEDtI/gzSm89fL+NyneLN3eHfBd1QPgOZyXPjA5M=
-github.com/filecoin-project/specs-actors v0.0.0-20200312030511-3f5510bf6130/go.mod h1:5WngRgTN5Eo4+0SjCBqLzEr2l6Mj45DrP2606gBhqI0=
+github.com/filecoin-project/specs-actors v0.0.0-20200321055844-54fa2e8da1c2 h1:6oyLnDQTUnqaVSy+GxiMsfS5EYZm6xtzXcylw29NtOk=
+github.com/filecoin-project/specs-actors v0.0.0-20200321055844-54fa2e8da1c2/go.mod h1:5WngRgTN5Eo4+0SjCBqLzEr2l6Mj45DrP2606gBhqI0=
 github.com/filecoin-project/specs-storage v0.0.0-20200317133846-063ba163b217 h1:doPA79fSLg5TnY2rJhXs5dIZHP3IoCcIiCLKFGfgrY8=
 github.com/filecoin-project/specs-storage v0.0.0-20200317133846-063ba163b217/go.mod h1:dUmzHS7izOD6HW3/JpzFrjxnptxbsHXBlO8puK2UzBk=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gbrlsnchs/jwt/v3 v3.0.0-beta.1 h1:EzDjxMg43q1tA2c0MV3tNbaontnHLplHyFF6M5KiVP0=
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@@ -246,18 +245,19 @@ github.com/ipfs/go-datastore v0.0.5/go.mod h1:d4KVXhMt913cLBEI/PXAy6ko+W7e9AhyAK
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@@ -279,7 +279,6 @@ github.com/ipfs/go-ipfs-chunker v0.0.1/go.mod h1:tWewYK0we3+rMbOh7pPFGDyypCtvGcB
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@@ -344,15 +343,17 @@ github.com/ipsn/go-secp256k1 v0.0.0-20180726113642-9d62b9f0bc52 h1:QG4CGBqCeuBo6
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@@ -371,7 +372,6 @@ github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvW
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@@ -405,8 +405,8 @@ github.com/libp2p/go-libp2p v0.1.0/go.mod h1:6D/2OBauqLUoqcADOJpn9WbKqvaM07tDw68
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@@ -432,8 +432,11 @@ github.com/libp2p/go-libp2p-core v0.0.9/go.mod h1:0d9xmaYAVY5qmbp/fcgxHT3ZJsLjYe
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@@ -458,8 +461,9 @@ github.com/libp2p/go-libp2p-loggables v0.1.0/go.mod h1:EyumB2Y6PrYjr55Q3/tiJ/o3x
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@@ -477,8 +481,10 @@ github.com/libp2p/go-libp2p-peerstore v0.0.6/go.mod h1:RabLyPVJLuNQ+GFyoEkfi8H4T
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@@ -510,7 +516,6 @@ github.com/libp2p/go-libp2p-testing v0.0.1/go.mod h1:gvchhf3FQOtBdr+eFUABet5a4MB
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@@ -519,21 +524,25 @@ github.com/libp2p/go-libp2p-tls v0.1.0/go.mod h1:VZdoSWQDeNpIIAFJFv+6uqTqpnIIDHc
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@@ -566,12 +575,13 @@ github.com/libp2p/go-ws-transport v0.2.0 h1:MJCw2OrPA9+76YNRvdo1wMnSOxb9Bivj6sVF
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@@ -615,8 +625,9 @@ github.com/multiformats/go-multiaddr v0.0.2/go.mod h1:xKVEak1K9cS1VdmPZW3LSIb6lg
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@@ -627,10 +638,10 @@ github.com/multiformats/go-multiaddr-fmt v0.1.0 h1:WLEFClPycPkp4fnIzoFoV9FVd49/e
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@@ -656,21 +667,21 @@ github.com/nkovacs/streamquote v0.0.0-20170412213628-49af9bddb229/go.mod h1:0aYX
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@@ -712,7 +723,6 @@ github.com/shirou/gopsutil v2.18.12+incompatible h1:1eaJvGomDnH74/5cF4CTmTbLHAri
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@@ -765,8 +775,8 @@ github.com/whyrusleeping/cbor-gen v0.0.0-20191212224538-d370462a7e8a/go.mod h1:x
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@@ -786,15 +796,18 @@ github.com/whyrusleeping/timecache v0.0.0-20160911033111-cfcb2f1abfee h1:lYbXeSv
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 go.uber.org/dig v1.8.0 h1:1rR6hnL/bu1EVcjnRDN5kx1vbIjEJDTGhSQ2B3ddpcI=
 go.uber.org/dig v1.8.0/go.mod h1:X34SnWGr8Fyla9zQNO2GSO2D+TIuqB14OS8JhYocIyw=
 go.uber.org/fx v1.9.0 h1:7OAz8ucp35AU8eydejpYG7QrbE8rLKzGhHbZlJi5LYY=
@@ -802,14 +815,14 @@ go.uber.org/fx v1.9.0/go.mod h1:mFdUyAUuJ3w4jAckiKSKbldsxy1ojpAMJ+dVZg5Y0Aw=
 go.uber.org/goleak v1.0.0 h1:qsup4IcBdlmsnGfqyLl4Ntn3C2XCCuKAE7DwHpScyUo=
 go.uber.org/goleak v1.0.0/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
-go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
-go.uber.org/multierr v1.4.0 h1:f3WCSC2KzAcBXGATIxAB1E2XuCpNU255wNKZ505qi3E=
 go.uber.org/multierr v1.4.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
+go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A=
+go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee h1:0mgffUl7nfd+FpvXMVz4IDEaUSmT1ysygQC7qYo7sG4=
 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
-go.uber.org/zap v1.13.0 h1:nR6NoDBgAf67s68NhaXbsojM+2gxp3S1hWkHDl27pVU=
-go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
+go.uber.org/zap v1.14.1 h1:nYDKopTbvAPq/NrUVZwT15y2lpROBiLLyoRTbXOYWOo=
+go.uber.org/zap v1.14.1/go.mod h1:Mb2vm2krFEG5DV0W9qcHBYFtp/Wku1cvYaqPsS/WYfc=
 go4.org v0.0.0-20190218023631-ce4c26f7be8e h1:m9LfARr2VIOW0vsV19kEKp/sWQvZnGobA8JHui/XJoY=
 go4.org v0.0.0-20190218023631-ce4c26f7be8e/go.mod h1:MkTOUMDaeVYJUOUsaDXIhWPZYa1yOyC1qaOBpL57BhE=
 golang.org/x/crypto v0.0.0-20170930174604-9419663f5a44/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -827,17 +840,22 @@ golang.org/x/crypto v0.0.0-20190611184440-5c40567a22f8/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190618222545-ea8f1a30c443/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413 h1:ULYEB3JvPRE/IfO+9uO7vKV/xzVTO7XPAwm8xbf4w2g=
 golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200317142112-1b76d66859c6 h1:TjszyFsQsyZNHwdVdZ5m7bjmreu0znc2kRYsEml9/Ww=
+golang.org/x/crypto v0.0.0-20200317142112-1b76d66859c6/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k=
+golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
+golang.org/x/mod v0.2.0 h1:KU7oHjnv3XNWfa5COkzUifxZmxp1TyI7ImMXqFxLwvQ=
+golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -854,16 +872,19 @@ golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190611141213-3f473d35a33a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 h1:Ao/3l156eZf2AW5wK8a7/smtodRU+gha3+BeqJ69lRk=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a h1:GuSPYbZzB5/dcLNCwLQLsg3obCJtX9IJhpXkvY7kzk0=
+golang.org/x/net v0.0.0-20200301022130-244492dfa37a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e h1:vcxGaoTs7kV8m5Np9uUNQin4BrLOthgV7252N8V+FwY=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180202135801-37707fdb30a5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -886,10 +907,13 @@ golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190922100055-0a153f010e69/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191025021431-6c3a3bfe00ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191210023423-ac6580df4449 h1:gSbV7h1NRL2G1xTg/owz62CST1oJBmxy4QpMMregXVQ=
+golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191210023423-ac6580df4449/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200317113312-5766fd39f98d h1:62ap6LNOjDU6uGmKXHJbSfciMoV+FeI1sRXx/pLDL44=
+golang.org/x/sys v0.0.0-20200317113312-5766fd39f98d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -910,8 +934,12 @@ golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191030062658-86caa796c7ab/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20191216173652-a0e659d51361 h1:RIIXAeV6GvDBuADKumTODatUqANFZ+5BPMnzsy4hulY=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191216173652-a0e659d51361/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200318150045-ba25ddc85566 h1:OXjomkWHhzUx4+HldlJ2TsMxJdWgEo5CTtspD1wdhdk=
+golang.org/x/tools v0.0.0-20200318150045-ba25ddc85566/go.mod h1:Sl4aGygMT6LrqrWclx+PTx3U+LnKx/seiNR+3G19Ar8=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -929,7 +957,6 @@ google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRn
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -954,8 +981,9 @@ gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
 gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+honnef.co/go/tools v0.0.1-2020.1.3 h1:sXmLre5bzIR6ypkjXCDI3jHPssRhc8KD/Ome589sc3U=
+honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 howett.net/plist v0.0.0-20181124034731-591f970eefbb h1:jhnBjNi9UFpfpl8YZhA9CrOqpnJdvzuiHsl/dnxl11M=
 howett.net/plist v0.0.0-20181124034731-591f970eefbb/go.mod h1:vMygbs4qMhSZSc4lCUl2OEE+rDiIIJAIdR4m7MiMcm0=
 launchpad.net/gocheck v0.0.0-20140225173054-000000000087 h1:Izowp2XBH6Ya6rv+hqbceQyw/gSGoXfH/UPoTGduL54=

node/hello/cbor_gen.go

@@ -133,7 +133,7 @@ func (t *HelloMessage) UnmarshalCBOR(r io.Reader) error {
 	{
 
 		if err := t.HeaviestTipSetWeight.UnmarshalCBOR(br); err != nil {
-			return err
+			return xerrors.Errorf("unmarshaling t.HeaviestTipSetWeight: %w", err)
 		}
 
 	}

node/hello/hello.go

@@ -2,9 +2,10 @@ package hello
 
 import (
 	"context"
-	"github.com/filecoin-project/specs-actors/actors/abi"
 	"time"
 
+	"github.com/filecoin-project/specs-actors/actors/abi"
+
 	"github.com/filecoin-project/specs-actors/actors/abi/big"
 	"github.com/ipfs/go-cid"
 	logging "github.com/ipfs/go-log/v2"

node/impl/full/chain.go

@@ -20,11 +20,11 @@ import (
 	offline "github.com/ipfs/go-ipfs-exchange-offline"
 	cbor "github.com/ipfs/go-ipld-cbor"
 	ipld "github.com/ipfs/go-ipld-format"
+	logging "github.com/ipfs/go-log"
 	"github.com/ipfs/go-merkledag"
 	"github.com/ipfs/go-path"
 	"github.com/ipfs/go-path/resolver"
 	mh "github.com/multiformats/go-multihash"
-	"github.com/prometheus/common/log"
 	"go.uber.org/fx"
 	"golang.org/x/xerrors"
 
@@ -35,6 +35,8 @@ import (
 	"github.com/filecoin-project/lotus/chain/types"
 )
 
+var log = logging.Logger("fullnode")
+
 type ChainAPI struct {
 	fx.In
 
@@ -424,7 +426,7 @@ func (a *ChainAPI) ChainExport(ctx context.Context, tsk types.TipSetKey) (<-chan
 		for {
 			buf := make([]byte, 4096)
 			n, err := r.Read(buf)
-			if err != nil {
+			if err != nil && err != io.EOF {
 				log.Errorf("chain export pipe read failed: %s", err)
 				return
 			}
@@ -433,6 +435,9 @@ func (a *ChainAPI) ChainExport(ctx context.Context, tsk types.TipSetKey) (<-chan
 			case <-ctx.Done():
 				log.Warnf("export writer failed: %s", ctx.Err())
 			}
+			if err == io.EOF {
+				return
+			}
 		}
 	}()
 

node/impl/full/state.go

@@ -10,7 +10,6 @@ import (
 	"github.com/ipfs/go-hamt-ipld"
 	cbor "github.com/ipfs/go-ipld-cbor"
 	"github.com/libp2p/go-libp2p-core/peer"
-	"github.com/prometheus/common/log"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	"go.uber.org/fx"
 	"golang.org/x/xerrors"

node/impl/full/sync.go

@@ -8,7 +8,6 @@ import (
 	"github.com/filecoin-project/lotus/chain"
 	"github.com/filecoin-project/lotus/chain/types"
 	cid "github.com/ipfs/go-cid"
-	"github.com/prometheus/common/log"
 
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"go.uber.org/fx"

node/modules/graphsync.go

@@ -15,8 +15,8 @@ import (
 )
 
 // GraphsyncStorer creates a storer that stores data in the client blockstore
-func GraphsyncStorer(clientBs dtypes.ClientBlockstore) dtypes.GraphsyncStorer {
-	return dtypes.GraphsyncStorer(storeutil.StorerForBlockstore(clientBs))
+func GraphsyncStorer(chainBs dtypes.ChainBlockstore) dtypes.GraphsyncStorer {
+	return dtypes.GraphsyncStorer(storeutil.StorerForBlockstore(chainBs))
 }
 
 // GraphsyncLoader creates a loader that reads from both the chain blockstore and the client blockstore

node/modules/services.go

@@ -3,11 +3,13 @@ package modules
 import (
 	"context"
 
+	eventbus "github.com/libp2p/go-eventbus"
+	event "github.com/libp2p/go-libp2p-core/event"
 	"github.com/libp2p/go-libp2p-core/host"
-	inet "github.com/libp2p/go-libp2p-core/network"
 	peer "github.com/libp2p/go-libp2p-peer"
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"go.uber.org/fx"
+	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket/discovery"
@@ -23,20 +25,26 @@ import (
 	"github.com/filecoin-project/lotus/node/modules/helpers"
 )
 
-func RunHello(mctx helpers.MetricsCtx, lc fx.Lifecycle, h host.Host, svc *hello.Service) {
+func RunHello(mctx helpers.MetricsCtx, lc fx.Lifecycle, h host.Host, svc *hello.Service) error {
 	h.SetStreamHandler(hello.ProtocolID, svc.HandleStream)
 
-	bundle := inet.NotifyBundle{
-		ConnectedF: func(_ inet.Network, c inet.Conn) {
+	sub, err := h.EventBus().Subscribe(new(event.EvtPeerIdentificationCompleted), eventbus.BufSize(1024))
+	if err != nil {
+		return xerrors.Errorf("failed to subscribe to event bus: %w", err)
+	}
+
+	go func() {
+		for evt := range sub.Out() {
+			pic := evt.(event.EvtPeerIdentificationCompleted)
 			go func() {
-				if err := svc.SayHello(helpers.LifecycleCtx(mctx, lc), c.RemotePeer()); err != nil {
+				if err := svc.SayHello(helpers.LifecycleCtx(mctx, lc), pic.Peer); err != nil {
 					log.Warnw("failed to say hello", "error", err)
 					return
 				}
 			}()
-		},
-	}
-	h.Network().Notify(&bundle)
+		}
+	}()
+	return nil
 }
 
 func RunPeerMgr(mctx helpers.MetricsCtx, lc fx.Lifecycle, pmgr *peermgr.PeerMgr) {

paychmgr/cbor_gen.go

@@ -110,7 +110,7 @@ func (t *VoucherInfo) UnmarshalCBOR(r io.Reader) error {
 				} else {
 					t.Voucher = new(paych.SignedVoucher)
 					if err := t.Voucher.UnmarshalCBOR(br); err != nil {
-						return err
+						return xerrors.Errorf("unmarshaling t.Voucher pointer: %w", err)
 					}
 				}
 
@@ -294,7 +294,7 @@ func (t *ChannelInfo) UnmarshalCBOR(r io.Reader) error {
 			{
 
 				if err := t.Channel.UnmarshalCBOR(br); err != nil {
-					return err
+					return xerrors.Errorf("unmarshaling t.Channel: %w", err)
 				}
 
 			}
@@ -304,7 +304,7 @@ func (t *ChannelInfo) UnmarshalCBOR(r io.Reader) error {
 			{
 
 				if err := t.Control.UnmarshalCBOR(br); err != nil {
-					return err
+					return xerrors.Errorf("unmarshaling t.Control: %w", err)
 				}
 
 			}
@@ -314,7 +314,7 @@ func (t *ChannelInfo) UnmarshalCBOR(r io.Reader) error {
 			{
 
 				if err := t.Target.UnmarshalCBOR(br); err != nil {
-					return err
+					return xerrors.Errorf("unmarshaling t.Target: %w", err)
 				}
 
 			}

storage/sealing/cbor_gen.go

@@ -694,7 +694,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) error {
 			{
 
 				if err := t.Ticket.UnmarshalCBOR(br); err != nil {
-					return err
+					return xerrors.Errorf("unmarshaling t.Ticket: %w", err)
 				}
 
 			}
@@ -729,7 +729,7 @@ func (t *SectorInfo) UnmarshalCBOR(r io.Reader) error {
 			{
 
 				if err := t.Seed.UnmarshalCBOR(br); err != nil {
-					return err
+					return xerrors.Errorf("unmarshaling t.Seed: %w", err)
 				}
 
 			}