diff --git a/Makefile b/Makefile
index dfe4a65c7..dfef9f262 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ all: build
 
 unexport GOFLAGS
 
-GOVERSION:=$(shell go version | cut -d' ' -f 3 | sed 's/^go//' | awk -F. '{printf "%d%03d%03d", $$1, $$2, $$3}')
+GOVERSION:=$(shell $(GOCC) version | tr ' ' '\n' | grep go1 | sed 's/^go//' | awk -F. '{printf "%d%03d%03d", $$1, $$2, $$3}')
 ifeq ($(shell expr $(GOVERSION) \< 1016000), 1)
 $(warning Your Golang version is go$(shell expr $(GOVERSION) / 1000000).$(shell expr $(GOVERSION) % 1000000 / 1000).$(shell expr $(GOVERSION) % 1000))
 $(error Update Golang to version to at least 1.16.0)
diff --git a/api/api_storage.go b/api/api_storage.go
index 154abcea7..c39114929 100644
--- a/api/api_storage.go
+++ b/api/api_storage.go
@@ -166,6 +166,10 @@ type StorageMiner interface {
 	MarketPendingDeals(ctx context.Context) (PendingDealInfo, error)                                                             //perm:write
 	MarketPublishPendingDeals(ctx context.Context) error                                                                         //perm:admin
 
+	// RuntimeSubsystems returns the subsystems that are enabled
+	// in this instance.
+	RuntimeSubsystems(ctx context.Context) (MinerSubsystems, error) //perm:read
+
 	DealsImportData(ctx context.Context, dealPropCid cid.Cid, file string) error //perm:admin
 	DealsList(ctx context.Context) ([]MarketDeal, error)                         //perm:admin
 	DealsConsiderOnlineStorageDeals(context.Context) (bool, error)               //perm:admin
diff --git a/api/docgen/docgen.go b/api/docgen/docgen.go
index 39980023f..f9addc940 100644
--- a/api/docgen/docgen.go
+++ b/api/docgen/docgen.go
@@ -16,10 +16,10 @@ import (
 	"github.com/google/uuid"
 	"github.com/ipfs/go-cid"
 	"github.com/ipfs/go-filestore"
-	metrics "github.com/libp2p/go-libp2p-core/metrics"
+	"github.com/libp2p/go-libp2p-core/metrics"
 	"github.com/libp2p/go-libp2p-core/network"
 	"github.com/libp2p/go-libp2p-core/peer"
-	protocol "github.com/libp2p/go-libp2p-core/protocol"
+	"github.com/libp2p/go-libp2p-core/protocol"
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	"github.com/multiformats/go-multiaddr"
 
@@ -46,11 +46,12 @@ import (
 )
 
 var ExampleValues = map[reflect.Type]interface{}{
-	reflect.TypeOf(auth.Permission("")): auth.Permission("write"),
-	reflect.TypeOf(""):                  "string value",
-	reflect.TypeOf(uint64(42)):          uint64(42),
-	reflect.TypeOf(byte(7)):             byte(7),
-	reflect.TypeOf([]byte{}):            []byte("byte array"),
+	reflect.TypeOf(api.MinerSubsystem(0)): api.MinerSubsystem(1),
+	reflect.TypeOf(auth.Permission("")):   auth.Permission("write"),
+	reflect.TypeOf(""):                    "string value",
+	reflect.TypeOf(uint64(42)):            uint64(42),
+	reflect.TypeOf(byte(7)):               byte(7),
+	reflect.TypeOf([]byte{}):              []byte("byte array"),
 }
 
 func addExample(v interface{}) {
@@ -264,6 +265,12 @@ func init() {
 
 	addExample(api.CheckStatusCode(0))
 	addExample(map[string]interface{}{"abc": 123})
+	addExample(api.MinerSubsystems{
+		api.SubsystemMining,
+		api.SubsystemSealing,
+		api.SubsystemSectorStorage,
+		api.SubsystemMarkets,
+	})
 }
 
 func GetAPIType(name, pkg string) (i interface{}, t reflect.Type, permStruct []reflect.Type) {
diff --git a/api/miner_subsystems.go b/api/miner_subsystems.go
new file mode 100644
index 000000000..a77de7e3c
--- /dev/null
+++ b/api/miner_subsystems.go
@@ -0,0 +1,79 @@
+package api
+
+import (
+	"encoding/json"
+)
+
+// MinerSubsystem represents a miner subsystem. Int and string values are not
+// guaranteed to be stable over time  is not
+// guaranteed to be stable over time.
+type MinerSubsystem int
+
+const (
+	// SubsystemUnknown is a placeholder for the zero value. It should never
+	// be used.
+	SubsystemUnknown MinerSubsystem = iota
+	// SubsystemMarkets signifies the storage and retrieval
+	// deal-making subsystem.
+	SubsystemMarkets
+	// SubsystemMining signifies the mining subsystem.
+	SubsystemMining
+	// SubsystemSealing signifies the sealing subsystem.
+	SubsystemSealing
+	// SubsystemSectorStorage signifies the sector storage subsystem.
+	SubsystemSectorStorage
+)
+
+var MinerSubsystemToString = map[MinerSubsystem]string{
+	SubsystemUnknown:       "Unknown",
+	SubsystemMarkets:       "Markets",
+	SubsystemMining:        "Mining",
+	SubsystemSealing:       "Sealing",
+	SubsystemSectorStorage: "SectorStorage",
+}
+
+var MinerSubsystemToID = map[string]MinerSubsystem{
+	"Unknown":       SubsystemUnknown,
+	"Markets":       SubsystemMarkets,
+	"Mining":        SubsystemMining,
+	"Sealing":       SubsystemSealing,
+	"SectorStorage": SubsystemSectorStorage,
+}
+
+func (ms MinerSubsystem) MarshalJSON() ([]byte, error) {
+	return json.Marshal(MinerSubsystemToString[ms])
+}
+
+func (ms *MinerSubsystem) UnmarshalJSON(b []byte) error {
+	var j string
+	err := json.Unmarshal(b, &j)
+	if err != nil {
+		return err
+	}
+	s, ok := MinerSubsystemToID[j]
+	if !ok {
+		*ms = SubsystemUnknown
+	} else {
+		*ms = s
+	}
+	return nil
+}
+
+type MinerSubsystems []MinerSubsystem
+
+func (ms MinerSubsystems) Has(entry MinerSubsystem) bool {
+	for _, v := range ms {
+		if v == entry {
+			return true
+		}
+	}
+	return false
+}
+
+func (ms MinerSubsystem) String() string {
+	s, ok := MinerSubsystemToString[ms]
+	if !ok {
+		return MinerSubsystemToString[SubsystemUnknown]
+	}
+	return s
+}
diff --git a/api/proxy_gen.go b/api/proxy_gen.go
index 7d96425ff..a4feb7be1 100644
--- a/api/proxy_gen.go
+++ b/api/proxy_gen.go
@@ -699,6 +699,8 @@ type StorageMinerStruct struct {
 
 		ReturnUnsealPiece func(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error `perm:"admin"`
 
+		RuntimeSubsystems func(p0 context.Context) (MinerSubsystems, error) `perm:"read"`
+
 		SealingAbort func(p0 context.Context, p1 storiface.CallID) error `perm:"admin"`
 
 		SealingSchedDiag func(p0 context.Context, p1 bool) (interface{}, error) `perm:"admin"`
@@ -4095,6 +4097,17 @@ func (s *StorageMinerStub) ReturnUnsealPiece(p0 context.Context, p1 storiface.Ca
 	return ErrNotSupported
 }
 
+func (s *StorageMinerStruct) RuntimeSubsystems(p0 context.Context) (MinerSubsystems, error) {
+	if s.Internal.RuntimeSubsystems == nil {
+		return *new(MinerSubsystems), ErrNotSupported
+	}
+	return s.Internal.RuntimeSubsystems(p0)
+}
+
+func (s *StorageMinerStub) RuntimeSubsystems(p0 context.Context) (MinerSubsystems, error) {
+	return *new(MinerSubsystems), ErrNotSupported
+}
+
 func (s *StorageMinerStruct) SealingAbort(p0 context.Context, p1 storiface.CallID) error {
 	if s.Internal.SealingAbort == nil {
 		return ErrNotSupported
diff --git a/build/openrpc/full.json.gz b/build/openrpc/full.json.gz
index 4708ec159..db41fb2d3 100644
Binary files a/build/openrpc/full.json.gz and b/build/openrpc/full.json.gz differ
diff --git a/build/openrpc/miner.json.gz b/build/openrpc/miner.json.gz
index 58a76714d..57a56d94f 100644
Binary files a/build/openrpc/miner.json.gz and b/build/openrpc/miner.json.gz differ
diff --git a/build/openrpc/worker.json.gz b/build/openrpc/worker.json.gz
index fbf25f4ea..07740e5e2 100644
Binary files a/build/openrpc/worker.json.gz and b/build/openrpc/worker.json.gz differ
diff --git a/chain/state/statetree.go b/chain/state/statetree.go
index 8705aeff8..8140cd4db 100644
--- a/chain/state/statetree.go
+++ b/chain/state/statetree.go
@@ -273,7 +273,7 @@ func LoadStateTree(cst cbor.IpldStore, c cid.Cid) (*StateTree, error) {
 	}
 	if err != nil {
 		log.Errorf("failed to load state tree: %s", err)
-		return nil, xerrors.Errorf("failed to load state tree: %w", err)
+		return nil, xerrors.Errorf("failed to load state tree %s: %w", c, err)
 	}
 
 	s := &StateTree{
diff --git a/chain/stmgr/stmgr.go b/chain/stmgr/stmgr.go
index b76dd0faf..1748c341e 100644
--- a/chain/stmgr/stmgr.go
+++ b/chain/stmgr/stmgr.go
@@ -221,7 +221,7 @@ func (sm *StateManager) ResolveToKeyAddress(ctx context.Context, addr address.Ad
 	// First try to resolve the actor in the parent state, so we don't have to compute anything.
 	tree, err := state.LoadStateTree(cst, ts.ParentState())
 	if err != nil {
-		return address.Undef, xerrors.Errorf("failed to load parent state tree: %w", err)
+		return address.Undef, xerrors.Errorf("failed to load parent state tree at tipset %s: %w", ts.Parents(), err)
 	}
 
 	resolved, err := vm.ResolveToKeyAddr(tree, cst, addr)
@@ -232,12 +232,12 @@ func (sm *StateManager) ResolveToKeyAddress(ctx context.Context, addr address.Ad
 	// If that fails, compute the tip-set and try again.
 	st, _, err := sm.TipSetState(ctx, ts)
 	if err != nil {
-		return address.Undef, xerrors.Errorf("resolve address failed to get tipset state: %w", err)
+		return address.Undef, xerrors.Errorf("resolve address failed to get tipset %s state: %w", ts, err)
 	}
 
 	tree, err = state.LoadStateTree(cst, st)
 	if err != nil {
-		return address.Undef, xerrors.Errorf("failed to load state tree")
+		return address.Undef, xerrors.Errorf("failed to load state tree at tipset %s: %w", ts, err)
 	}
 
 	return vm.ResolveToKeyAddr(tree, cst, addr)
diff --git a/chain/store/messages.go b/chain/store/messages.go
index 50cf0e6a2..9f5160559 100644
--- a/chain/store/messages.go
+++ b/chain/store/messages.go
@@ -110,7 +110,7 @@ func (cs *ChainStore) BlockMsgsForTipset(ts *types.TipSet) ([]BlockMessages, err
 	cst := cbor.NewCborStore(cs.stateBlockstore)
 	st, err := state.LoadStateTree(cst, ts.Blocks()[0].ParentStateRoot)
 	if err != nil {
-		return nil, xerrors.Errorf("failed to load state tree")
+		return nil, xerrors.Errorf("failed to load state tree at tipset %s: %w", ts, err)
 	}
 
 	selectMsg := func(m *types.Message) (bool, error) {
diff --git a/cmd/lotus-miner/info.go b/cmd/lotus-miner/info.go
index 3941ce563..878361dac 100644
--- a/cmd/lotus-miner/info.go
+++ b/cmd/lotus-miner/info.go
@@ -21,6 +21,7 @@ import (
 	"github.com/filecoin-project/go-fil-markets/storagemarket"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
+	"github.com/filecoin-project/lotus/api/v0api"
 	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
 
 	"github.com/filecoin-project/lotus/api"
@@ -55,7 +56,7 @@ func infoCmdAct(cctx *cli.Context) error {
 	}
 	defer closer()
 
-	api, acloser, err := lcli.GetFullNodeAPI(cctx)
+	fullapi, acloser, err := lcli.GetFullNodeAPI(cctx)
 	if err != nil {
 		return err
 	}
@@ -63,9 +64,16 @@ func infoCmdAct(cctx *cli.Context) error {
 
 	ctx := lcli.ReqContext(cctx)
 
+	subsystems, err := nodeApi.RuntimeSubsystems(ctx)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("Enabled subsystems:", subsystems)
+
 	fmt.Print("Chain: ")
 
-	head, err := api.ChainHead(ctx)
+	head, err := fullapi.ChainHead(ctx)
 	if err != nil {
 		return err
 	}
@@ -95,24 +103,42 @@ func infoCmdAct(cctx *cli.Context) error {
 
 	fmt.Println()
 
+	if subsystems.Has(api.SubsystemSectorStorage) {
+		err := handleMiningInfo(ctx, cctx, fullapi, nodeApi)
+		if err != nil {
+			return err
+		}
+	}
+
+	if subsystems.Has(api.SubsystemMarkets) {
+		err := handleMarketsInfo(ctx, nodeApi)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func handleMiningInfo(ctx context.Context, cctx *cli.Context, fullapi v0api.FullNode, nodeApi api.StorageMiner) error {
 	maddr, err := getActorAddress(ctx, cctx)
 	if err != nil {
 		return err
 	}
 
-	mact, err := api.StateGetActor(ctx, maddr, types.EmptyTSK)
+	mact, err := fullapi.StateGetActor(ctx, maddr, types.EmptyTSK)
 	if err != nil {
 		return err
 	}
 
-	tbs := blockstore.NewTieredBstore(blockstore.NewAPIBlockstore(api), blockstore.NewMemory())
+	tbs := blockstore.NewTieredBstore(blockstore.NewAPIBlockstore(fullapi), blockstore.NewMemory())
 	mas, err := miner.Load(adt.WrapStore(ctx, cbor.NewCborStore(tbs)), mact)
 	if err != nil {
 		return err
 	}
 
 	// Sector size
-	mi, err := api.StateMinerInfo(ctx, maddr, types.EmptyTSK)
+	mi, err := fullapi.StateMinerInfo(ctx, maddr, types.EmptyTSK)
 	if err != nil {
 		return err
 	}
@@ -120,7 +146,7 @@ func infoCmdAct(cctx *cli.Context) error {
 	ssize := types.SizeStr(types.NewInt(uint64(mi.SectorSize)))
 	fmt.Printf("Miner: %s (%s sectors)\n", color.BlueString("%s", maddr), ssize)
 
-	pow, err := api.StateMinerPower(ctx, maddr, types.EmptyTSK)
+	pow, err := fullapi.StateMinerPower(ctx, maddr, types.EmptyTSK)
 	if err != nil {
 		return err
 	}
@@ -142,7 +168,7 @@ func infoCmdAct(cctx *cli.Context) error {
 			pow.TotalPower.RawBytePower,
 		),
 	)
-	secCounts, err := api.StateMinerSectorCount(ctx, maddr, types.EmptyTSK)
+	secCounts, err := fullapi.StateMinerSectorCount(ctx, maddr, types.EmptyTSK)
 	if err != nil {
 		return err
 	}
@@ -219,6 +245,75 @@ func infoCmdAct(cctx *cli.Context) error {
 
 	fmt.Println()
 
+	spendable := big.Zero()
+
+	// NOTE: there's no need to unlock anything here. Funds only
+	// vest on deadline boundaries, and they're unlocked by cron.
+	lockedFunds, err := mas.LockedFunds()
+	if err != nil {
+		return xerrors.Errorf("getting locked funds: %w", err)
+	}
+	availBalance, err := mas.AvailableBalance(mact.Balance)
+	if err != nil {
+		return xerrors.Errorf("getting available balance: %w", err)
+	}
+	spendable = big.Add(spendable, availBalance)
+
+	fmt.Printf("Miner Balance:    %s\n", color.YellowString("%s", types.FIL(mact.Balance).Short()))
+	fmt.Printf("      PreCommit:  %s\n", types.FIL(lockedFunds.PreCommitDeposits).Short())
+	fmt.Printf("      Pledge:     %s\n", types.FIL(lockedFunds.InitialPledgeRequirement).Short())
+	fmt.Printf("      Vesting:    %s\n", types.FIL(lockedFunds.VestingFunds).Short())
+	colorTokenAmount("      Available:  %s\n", availBalance)
+
+	mb, err := fullapi.StateMarketBalance(ctx, maddr, types.EmptyTSK)
+	if err != nil {
+		return xerrors.Errorf("getting market balance: %w", err)
+	}
+	spendable = big.Add(spendable, big.Sub(mb.Escrow, mb.Locked))
+
+	fmt.Printf("Market Balance:   %s\n", types.FIL(mb.Escrow).Short())
+	fmt.Printf("       Locked:    %s\n", types.FIL(mb.Locked).Short())
+	colorTokenAmount("       Available: %s\n", big.Sub(mb.Escrow, mb.Locked))
+
+	wb, err := fullapi.WalletBalance(ctx, mi.Worker)
+	if err != nil {
+		return xerrors.Errorf("getting worker balance: %w", err)
+	}
+	spendable = big.Add(spendable, wb)
+	color.Cyan("Worker Balance:   %s", types.FIL(wb).Short())
+	if len(mi.ControlAddresses) > 0 {
+		cbsum := big.Zero()
+		for _, ca := range mi.ControlAddresses {
+			b, err := fullapi.WalletBalance(ctx, ca)
+			if err != nil {
+				return xerrors.Errorf("getting control address balance: %w", err)
+			}
+			cbsum = big.Add(cbsum, b)
+		}
+		spendable = big.Add(spendable, cbsum)
+
+		fmt.Printf("       Control:   %s\n", types.FIL(cbsum).Short())
+	}
+	colorTokenAmount("Total Spendable:  %s\n", spendable)
+
+	fmt.Println()
+
+	if !cctx.Bool("hide-sectors-info") {
+		fmt.Println("Sectors:")
+		err = sectorsInfo(ctx, nodeApi)
+		if err != nil {
+			return err
+		}
+	}
+
+	// TODO: grab actr state / info
+	//  * Sealed sectors (count / bytes)
+	//  * Power
+
+	return nil
+}
+
+func handleMarketsInfo(ctx context.Context, nodeApi api.StorageMiner) error {
 	deals, err := nodeApi.MarketListIncompleteDeals(ctx)
 	if err != nil {
 		return err
@@ -309,70 +404,6 @@ func infoCmdAct(cctx *cli.Context) error {
 
 	fmt.Println()
 
-	spendable := big.Zero()
-
-	// NOTE: there's no need to unlock anything here. Funds only
-	// vest on deadline boundaries, and they're unlocked by cron.
-	lockedFunds, err := mas.LockedFunds()
-	if err != nil {
-		return xerrors.Errorf("getting locked funds: %w", err)
-	}
-	availBalance, err := mas.AvailableBalance(mact.Balance)
-	if err != nil {
-		return xerrors.Errorf("getting available balance: %w", err)
-	}
-	spendable = big.Add(spendable, availBalance)
-
-	fmt.Printf("Miner Balance:    %s\n", color.YellowString("%s", types.FIL(mact.Balance).Short()))
-	fmt.Printf("      PreCommit:  %s\n", types.FIL(lockedFunds.PreCommitDeposits).Short())
-	fmt.Printf("      Pledge:     %s\n", types.FIL(lockedFunds.InitialPledgeRequirement).Short())
-	fmt.Printf("      Vesting:    %s\n", types.FIL(lockedFunds.VestingFunds).Short())
-	colorTokenAmount("      Available:  %s\n", availBalance)
-
-	mb, err := api.StateMarketBalance(ctx, maddr, types.EmptyTSK)
-	if err != nil {
-		return xerrors.Errorf("getting market balance: %w", err)
-	}
-	spendable = big.Add(spendable, big.Sub(mb.Escrow, mb.Locked))
-
-	fmt.Printf("Market Balance:   %s\n", types.FIL(mb.Escrow).Short())
-	fmt.Printf("       Locked:    %s\n", types.FIL(mb.Locked).Short())
-	colorTokenAmount("       Available: %s\n", big.Sub(mb.Escrow, mb.Locked))
-
-	wb, err := api.WalletBalance(ctx, mi.Worker)
-	if err != nil {
-		return xerrors.Errorf("getting worker balance: %w", err)
-	}
-	spendable = big.Add(spendable, wb)
-	color.Cyan("Worker Balance:   %s", types.FIL(wb).Short())
-	if len(mi.ControlAddresses) > 0 {
-		cbsum := big.Zero()
-		for _, ca := range mi.ControlAddresses {
-			b, err := api.WalletBalance(ctx, ca)
-			if err != nil {
-				return xerrors.Errorf("getting control address balance: %w", err)
-			}
-			cbsum = big.Add(cbsum, b)
-		}
-		spendable = big.Add(spendable, cbsum)
-
-		fmt.Printf("       Control:   %s\n", types.FIL(cbsum).Short())
-	}
-	colorTokenAmount("Total Spendable:  %s\n", spendable)
-
-	fmt.Println()
-
-	if !cctx.Bool("hide-sectors-info") {
-		fmt.Println("Sectors:")
-		err = sectorsInfo(ctx, nodeApi)
-		if err != nil {
-			return err
-		}
-	}
-
-	// TODO: grab actr state / info
-	//  * Sealed sectors (count / bytes)
-	//  * Power
 	return nil
 }
 
diff --git a/documentation/en/api-v0-methods-miner.md b/documentation/en/api-v0-methods-miner.md
index e8598ff0c..3b6d5ac51 100644
--- a/documentation/en/api-v0-methods-miner.md
+++ b/documentation/en/api-v0-methods-miner.md
@@ -94,6 +94,8 @@
   * [ReturnSealPreCommit1](#ReturnSealPreCommit1)
   * [ReturnSealPreCommit2](#ReturnSealPreCommit2)
   * [ReturnUnsealPiece](#ReturnUnsealPiece)
+* [Runtime](#Runtime)
+  * [RuntimeSubsystems](#RuntimeSubsystems)
 * [Sealing](#Sealing)
   * [SealingAbort](#SealingAbort)
   * [SealingSchedDiag](#SealingSchedDiag)
@@ -1522,6 +1524,28 @@ Inputs:
 
 Response: `{}`
 
+## Runtime
+
+
+### RuntimeSubsystems
+RuntimeSubsystems returns the subsystems that are enabled
+in this instance.
+
+
+Perms: read
+
+Inputs: `null`
+
+Response:
+```json
+[
+  "Mining",
+  "Sealing",
+  "SectorStorage",
+  "Markets"
+]
+```
+
 ## Sealing
 
 
diff --git a/extern/storage-sealing/checks.go b/extern/storage-sealing/checks.go
index 5ba23026d..115eedea5 100644
--- a/extern/storage-sealing/checks.go
+++ b/extern/storage-sealing/checks.go
@@ -93,27 +93,29 @@ func checkPrecommit(ctx context.Context, maddr address.Address, si SectorInfo, t
 		return &ErrBadCommD{xerrors.Errorf("on chain CommD differs from sector: %s != %s", commD, si.CommD)}
 	}
 
-	ticketEarliest := height - policy.MaxPreCommitRandomnessLookback
-
-	if si.TicketEpoch < ticketEarliest {
-		return &ErrExpiredTicket{xerrors.Errorf("ticket expired: seal height: %d, head: %d", si.TicketEpoch+policy.SealRandomnessLookback, height)}
-	}
-
 	pci, err := api.StateSectorPreCommitInfo(ctx, maddr, si.SectorNumber, tok)
 	if err != nil {
 		if err == ErrSectorAllocated {
+			//committed P2 message  but commit C2 message too late, pci should be null in this case
 			return &ErrSectorNumberAllocated{err}
 		}
 		return &ErrApi{xerrors.Errorf("getting precommit info: %w", err)}
 	}
 
 	if pci != nil {
+		// committed P2 message
 		if pci.Info.SealRandEpoch != si.TicketEpoch {
 			return &ErrBadTicket{xerrors.Errorf("bad ticket epoch: %d != %d", pci.Info.SealRandEpoch, si.TicketEpoch)}
 		}
 		return &ErrPrecommitOnChain{xerrors.Errorf("precommit already on chain")}
 	}
 
+	//never commit P2 message before, check ticket expiration
+	ticketEarliest := height - policy.MaxPreCommitRandomnessLookback
+
+	if si.TicketEpoch < ticketEarliest {
+		return &ErrExpiredTicket{xerrors.Errorf("ticket expired: seal height: %d, head: %d", si.TicketEpoch+policy.SealRandomnessLookback, height)}
+	}
 	return nil
 }
 
diff --git a/go.mod b/go.mod
index b45284c8f..11d24b0f6 100644
--- a/go.mod
+++ b/go.mod
@@ -33,16 +33,16 @@ require (
 	github.com/filecoin-project/go-cbor-util v0.0.0-20191219014500-08c40a1e63a2
 	github.com/filecoin-project/go-commp-utils v0.1.1-0.20210427191551-70bf140d31c7
 	github.com/filecoin-project/go-crypto v0.0.0-20191218222705-effae4ea9f03
-	github.com/filecoin-project/go-data-transfer v1.7.0
+	github.com/filecoin-project/go-data-transfer v1.7.1
 	github.com/filecoin-project/go-fil-commcid v0.1.0
 	github.com/filecoin-project/go-fil-commp-hashhash v0.1.0
-	github.com/filecoin-project/go-fil-markets v1.6.0
+	github.com/filecoin-project/go-fil-markets v1.6.1
 	github.com/filecoin-project/go-jsonrpc v0.1.4-0.20210217175800-45ea43ac2bec
 	github.com/filecoin-project/go-multistore v0.0.3
 	github.com/filecoin-project/go-padreader v0.0.0-20210723183308-812a16dc01b1
 	github.com/filecoin-project/go-paramfetch v0.0.2-0.20210614165157-25a6c7769498
 	github.com/filecoin-project/go-state-types v0.1.1-0.20210722133031-ad9bfe54c124
-	github.com/filecoin-project/go-statemachine v0.0.0-20200925024713-05bd7c71fbfe
+	github.com/filecoin-project/go-statemachine v1.0.0
 	github.com/filecoin-project/go-statestore v0.1.1
 	github.com/filecoin-project/go-storedcounter v0.0.0-20200421200003-1c99c62e8a5b
 	github.com/filecoin-project/specs-actors v0.9.14
@@ -78,7 +78,7 @@ require (
 	github.com/ipfs/go-ds-pebble v0.0.2-0.20200921225637-ce220f8ac459
 	github.com/ipfs/go-filestore v1.0.0
 	github.com/ipfs/go-fs-lock v0.0.6
-	github.com/ipfs/go-graphsync v0.6.5
+	github.com/ipfs/go-graphsync v0.6.6
 	github.com/ipfs/go-ipfs-blockstore v1.0.3
 	github.com/ipfs/go-ipfs-chunker v0.0.5
 	github.com/ipfs/go-ipfs-ds-help v1.0.0
diff --git a/go.sum b/go.sum
index 88a31e57f..ca71b27d2 100644
--- a/go.sum
+++ b/go.sum
@@ -276,8 +276,9 @@ github.com/filecoin-project/go-commp-utils v0.1.1-0.20210427191551-70bf140d31c7/
 github.com/filecoin-project/go-crypto v0.0.0-20191218222705-effae4ea9f03 h1:2pMXdBnCiXjfCYx/hLqFxccPoqsSveQFxVLvNxy9bus=
 github.com/filecoin-project/go-crypto v0.0.0-20191218222705-effae4ea9f03/go.mod h1:+viYnvGtUTgJRdy6oaeF4MTFKAfatX071MPDPBL11EQ=
 github.com/filecoin-project/go-data-transfer v1.0.1/go.mod h1:UxvfUAY9v3ub0a21BSK9u3pB2aq30Y0KMsG+w9/ysyo=
-github.com/filecoin-project/go-data-transfer v1.7.0 h1:mFRn+UuTdPROmhplLSekzd4rAs9ug8ubtSY4nw9wYkU=
 github.com/filecoin-project/go-data-transfer v1.7.0/go.mod h1:GLRr5BmLEqsLwXfiRDG7uJvph22KGL2M4iOuF8EINaU=
+github.com/filecoin-project/go-data-transfer v1.7.1 h1:Co4bTenvCc3WnOhQWyXRt59FLZvxwH8UeF0ZCOc1ik0=
+github.com/filecoin-project/go-data-transfer v1.7.1/go.mod h1:GLRr5BmLEqsLwXfiRDG7uJvph22KGL2M4iOuF8EINaU=
 github.com/filecoin-project/go-ds-versioning v0.1.0 h1:y/X6UksYTsK8TLCI7rttCKEvl8btmWxyFMEeeWGUxIQ=
 github.com/filecoin-project/go-ds-versioning v0.1.0/go.mod h1:mp16rb4i2QPmxBnmanUx8i/XANp+PFCCJWiAb+VW4/s=
 github.com/filecoin-project/go-fil-commcid v0.0.0-20200716160307-8f644712406f/go.mod h1:Eaox7Hvus1JgPrL5+M3+h7aSPHc0cVqpSxA+TxIEpZQ=
@@ -287,8 +288,8 @@ github.com/filecoin-project/go-fil-commcid v0.1.0/go.mod h1:Eaox7Hvus1JgPrL5+M3+
 github.com/filecoin-project/go-fil-commp-hashhash v0.1.0 h1:imrrpZWEHRnNqqv0tN7LXep5bFEVOVmQWHJvl2mgsGo=
 github.com/filecoin-project/go-fil-commp-hashhash v0.1.0/go.mod h1:73S8WSEWh9vr0fDJVnKADhfIv/d6dCbAGaAGWbdJEI8=
 github.com/filecoin-project/go-fil-markets v1.0.5-0.20201113164554-c5eba40d5335/go.mod h1:AJySOJC00JRWEZzRG2KsfUnqEf5ITXxeX09BE9N4f9c=
-github.com/filecoin-project/go-fil-markets v1.6.0 h1:+1usyX7rXz6Ey6hbHd/Fhx616ZvGCI94rW7wneMcptU=
-github.com/filecoin-project/go-fil-markets v1.6.0/go.mod h1:ZuFDagROUV6GfvBU//KReTQDw+EZci4rH7jMYTD10vs=
+github.com/filecoin-project/go-fil-markets v1.6.1 h1:8xdFyWrELfOzwcGa229bLu/olD+1l4sEWFIsZR7oz5U=
+github.com/filecoin-project/go-fil-markets v1.6.1/go.mod h1:ZuFDagROUV6GfvBU//KReTQDw+EZci4rH7jMYTD10vs=
 github.com/filecoin-project/go-hamt-ipld v0.1.5 h1:uoXrKbCQZ49OHpsTCkrThPNelC4W3LPEk0OrS/ytIBM=
 github.com/filecoin-project/go-hamt-ipld v0.1.5/go.mod h1:6Is+ONR5Cd5R6XZoCse1CWaXZc0Hdb/JeX+EQCQzX24=
 github.com/filecoin-project/go-hamt-ipld/v2 v2.0.0 h1:b3UDemBYN2HNfk3KOXNuxgTTxlWi3xVvbQP0IT38fvM=
@@ -313,8 +314,9 @@ github.com/filecoin-project/go-state-types v0.1.0/go.mod h1:ezYnPf0bNkTsDibL/psS
 github.com/filecoin-project/go-state-types v0.1.1-0.20210506134452-99b279731c48/go.mod h1:ezYnPf0bNkTsDibL/psSz5dy4B5awOJ/E7P2Saeep8g=
 github.com/filecoin-project/go-state-types v0.1.1-0.20210722133031-ad9bfe54c124 h1:veGrNABg/9I7prngrowkhwbvW5d5JN55MNKmbsr5FqA=
 github.com/filecoin-project/go-state-types v0.1.1-0.20210722133031-ad9bfe54c124/go.mod h1:ezYnPf0bNkTsDibL/psSz5dy4B5awOJ/E7P2Saeep8g=
-github.com/filecoin-project/go-statemachine v0.0.0-20200925024713-05bd7c71fbfe h1:dF8u+LEWeIcTcfUcCf3WFVlc81Fr2JKg8zPzIbBDKDw=
 github.com/filecoin-project/go-statemachine v0.0.0-20200925024713-05bd7c71fbfe/go.mod h1:FGwQgZAt2Gh5mjlwJUlVB62JeYdo+if0xWxSEfBD9ig=
+github.com/filecoin-project/go-statemachine v1.0.0 h1:b8FpFewPSklyAIUqH0oHt4nvKf03bU7asop1bJpjAtQ=
+github.com/filecoin-project/go-statemachine v1.0.0/go.mod h1:FGwQgZAt2Gh5mjlwJUlVB62JeYdo+if0xWxSEfBD9ig=
 github.com/filecoin-project/go-statestore v0.1.0/go.mod h1:LFc9hD+fRxPqiHiaqUEZOinUJB4WARkRfNl10O7kTnI=
 github.com/filecoin-project/go-statestore v0.1.1 h1:ufMFq00VqnT2CAuDpcGnwLnCX1I/c3OROw/kXVNSTZk=
 github.com/filecoin-project/go-statestore v0.1.1/go.mod h1:LFc9hD+fRxPqiHiaqUEZOinUJB4WARkRfNl10O7kTnI=
@@ -640,8 +642,8 @@ github.com/ipfs/go-graphsync v0.1.0/go.mod h1:jMXfqIEDFukLPZHqDPp8tJMbHO9Rmeb9CE
 github.com/ipfs/go-graphsync v0.4.2/go.mod h1:/VmbZTUdUMTbNkgzAiCEucIIAU3BkLE2cZrDCVUhyi0=
 github.com/ipfs/go-graphsync v0.4.3/go.mod h1:mPOwDYv128gf8gxPFgXnz4fNrSYPsWyqisJ7ych+XDY=
 github.com/ipfs/go-graphsync v0.6.4/go.mod h1:5WyaeigpNdpiYQuW2vwpuecOoEfB4h747ZGEOKmAGTg=
-github.com/ipfs/go-graphsync v0.6.5 h1:YAJl6Yit23PQcaawzb1rPK9PSnbbq2jjMRPpRpJ0Y5U=
-github.com/ipfs/go-graphsync v0.6.5/go.mod h1:GdHT8JeuIZ0R4lSjFR16Oe4zPi5dXwKi9zR9ADVlcdk=
+github.com/ipfs/go-graphsync v0.6.6 h1:In7jjzvSXlrAUz4OjN41lxYf/dzkf1bVeVxLpwKMRo8=
+github.com/ipfs/go-graphsync v0.6.6/go.mod h1:GdHT8JeuIZ0R4lSjFR16Oe4zPi5dXwKi9zR9ADVlcdk=
 github.com/ipfs/go-hamt-ipld v0.1.1/go.mod h1:1EZCr2v0jlCnhpa+aZ0JZYp8Tt2w16+JJOAVz17YcDk=
 github.com/ipfs/go-ipfs-blockstore v0.0.1/go.mod h1:d3WClOmRQKFnJ0Jz/jj/zmksX0ma1gROTlovZKBmN08=
 github.com/ipfs/go-ipfs-blockstore v0.1.0/go.mod h1:5aD0AvHPi7mZc6Ci1WCAhiBQu2IsfTduLl+422H6Rqw=
diff --git a/node/builder_miner.go b/node/builder_miner.go
index 0c0f9d15a..3be055de7 100644
--- a/node/builder_miner.go
+++ b/node/builder_miner.go
@@ -72,6 +72,7 @@ func ConfigStorageMiner(c interface{}) Option {
 	return Options(
 		ConfigCommon(&cfg.Common, enableLibp2pNode),
 
+		Override(new(api.MinerSubsystems), modules.ExtractEnabledMinerSubsystems(cfg.Subsystems)),
 		Override(new(stores.LocalStorage), From(new(repo.LockedRepo))),
 		Override(new(*stores.Local), modules.LocalStorage),
 		Override(new(*stores.Remote), modules.RemoteStorage),
diff --git a/node/impl/storminer.go b/node/impl/storminer.go
index 9db6a3775..0fbd12111 100644
--- a/node/impl/storminer.go
+++ b/node/impl/storminer.go
@@ -23,8 +23,8 @@ import (
 	"github.com/filecoin-project/go-address"
 	datatransfer "github.com/filecoin-project/go-data-transfer"
 	"github.com/filecoin-project/go-fil-markets/piecestore"
-	retrievalmarket "github.com/filecoin-project/go-fil-markets/retrievalmarket"
-	storagemarket "github.com/filecoin-project/go-fil-markets/storagemarket"
+	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
+	"github.com/filecoin-project/go-fil-markets/storagemarket"
 	"github.com/filecoin-project/go-state-types/abi"
 
 	sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
@@ -51,6 +51,8 @@ type StorageMinerAPI struct {
 	api.Common
 	api.Net
 
+	EnabledSubsystems api.MinerSubsystems
+
 	Full        api.FullNode
 	LocalStore  *stores.Local
 	RemoteStore *stores.Remote
@@ -703,4 +705,8 @@ func (sm *StorageMinerAPI) ComputeProof(ctx context.Context, ssi []builtin.Secto
 	return sm.Epp.ComputeProof(ctx, ssi, rand)
 }
 
+func (sm *StorageMinerAPI) RuntimeSubsystems(context.Context) (res api.MinerSubsystems, err error) {
+	return sm.EnabledSubsystems, nil
+}
+
 var _ api.StorageMiner = &StorageMinerAPI{}
diff --git a/node/modules/storageminer.go b/node/modules/storageminer.go
index 3a3914e0c..5497eab58 100644
--- a/node/modules/storageminer.go
+++ b/node/modules/storageminer.go
@@ -1007,3 +1007,19 @@ func mutateCfg(r repo.LockedRepo, mutator func(*config.StorageMiner)) error {
 
 	return multierr.Combine(typeErr, setConfigErr)
 }
+
+func ExtractEnabledMinerSubsystems(cfg config.MinerSubsystemConfig) (res api.MinerSubsystems) {
+	if cfg.EnableMining {
+		res = append(res, api.SubsystemMining)
+	}
+	if cfg.EnableSealing {
+		res = append(res, api.SubsystemSealing)
+	}
+	if cfg.EnableSectorStorage {
+		res = append(res, api.SubsystemSectorStorage)
+	}
+	if cfg.EnableMarkets {
+		res = append(res, api.SubsystemMarkets)
+	}
+	return res
+}