feat: chain: light-weight patch to fix calibrationnet (#11363)

* refactor: make GetEmbeddedBuiltinActorsBundle take network bundle name

* update calibnet actor bundle to v12.0.0-rc.2, but include v12.0.0-rc.1 as calibrationnet-buggy.car

* wip: calibnet unbork migration

* calibnet: add buggy miner actor CID to actorMeta

* fix incorrect buggy calibnet manifest

* make UpgradeWatermelonFixHeight a build param

* calibnet patch: check whether network is calibration from init actor state

* add sanity checks to the v12 calibnet patch upgrade

* address review
This commit is contained in:
Aayush Rajasekaran 2023-10-31 18:29:09 -04:00 committed by Aayush
parent c9d4f0eefe
commit ce0c1d834f
14 changed files with 248 additions and 34 deletions

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@ -42,6 +42,12 @@ func init() {
if err := loadManifests(NetworkBundle); err != nil { if err := loadManifests(NetworkBundle); err != nil {
panic(err) panic(err)
} }
// The following code cid existed temporarily on the calibnet testnet, as a "buggy" storage miner actor implementation.
// We include it in our builtin bundle, but intentionally omit from metadata.
if NetworkBundle == "calibrationnet" {
actors.AddActorMeta("storageminer", cid.MustParse("bafk2bzacecnh2ouohmonvebq7uughh4h3ppmg4cjsk74dzxlbbtlcij4xbzxq"), actorstypes.Version12)
}
} }
// UseNetworkBundle switches to a different network bundle, by name. // UseNetworkBundle switches to a different network bundle, by name.
@ -183,6 +189,12 @@ func readEmbeddedBuiltinActorsMetadata(bundle string) ([]*BuiltinActorsMetadata,
if err != nil { if err != nil {
return nil, xerrors.Errorf("error loading builtin actors bundle: %w", err) return nil, xerrors.Errorf("error loading builtin actors bundle: %w", err)
} }
// The following manifest cid existed temporarily on the calibnet testnet
// We include it in our builtin bundle, but intentionally omit from metadata
if root == cid.MustParse("bafy2bzacedrunxfqta5skb7q7x32lnp4efz2oq7fn226ffm7fu5iqs62jkmvs") {
continue
}
bundles = append(bundles, &BuiltinActorsMetadata{ bundles = append(bundles, &BuiltinActorsMetadata{
Network: name, Network: name,
Version: actorstypes.Version(version), Version: actorstypes.Version(version),
@ -232,7 +244,7 @@ func readBundleManifest(r io.Reader) (cid.Cid, map[string]cid.Cid, error) {
} }
// GetEmbeddedBuiltinActorsBundle returns the builtin-actors bundle for the given actors version. // GetEmbeddedBuiltinActorsBundle returns the builtin-actors bundle for the given actors version.
func GetEmbeddedBuiltinActorsBundle(version actorstypes.Version) ([]byte, bool) { func GetEmbeddedBuiltinActorsBundle(version actorstypes.Version, networkBundleName string) ([]byte, bool) {
fi, err := embeddedBuiltinActorReleases.Open(fmt.Sprintf("actors/v%d.tar.zst", version)) fi, err := embeddedBuiltinActorReleases.Open(fmt.Sprintf("actors/v%d.tar.zst", version))
if err != nil { if err != nil {
return nil, false return nil, false
@ -243,7 +255,7 @@ func GetEmbeddedBuiltinActorsBundle(version actorstypes.Version) ([]byte, bool)
defer uncompressed.Close() //nolint defer uncompressed.Close() //nolint
tarReader := tar.NewReader(uncompressed) tarReader := tar.NewReader(uncompressed)
targetFileName := fmt.Sprintf("builtin-actors-%s.car", NetworkBundle) targetFileName := fmt.Sprintf("builtin-actors-%s.car", networkBundleName)
for { for {
header, err := tarReader.Next() header, err := tarReader.Next()
switch err { switch err {

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@ -203,8 +203,8 @@ var EmbeddedBuiltinActorsMetadata []*BuiltinActorsMetadata = []*BuiltinActorsMet
}, { }, {
Network: "calibrationnet", Network: "calibrationnet",
Version: 12, Version: 12,
BundleGitTag: "v12.0.0-rc.1", BundleGitTag: "v12.0.0-rc.2",
ManifestCid: MustParseCid("bafy2bzacedrunxfqta5skb7q7x32lnp4efz2oq7fn226ffm7fu5iqs62jkmvs"), ManifestCid: MustParseCid("bafy2bzacebl4w5ptfvuw6746w7ev562idkbf5ppq72e6zub22435ws2rukzru"),
Actors: map[string]cid.Cid{ Actors: map[string]cid.Cid{
"account": MustParseCid("bafk2bzacechwwxdqvggkdylm37zldjsra2ivkdzwp7fee56bzxbzs544wv6u6"), "account": MustParseCid("bafk2bzacechwwxdqvggkdylm37zldjsra2ivkdzwp7fee56bzxbzs544wv6u6"),
"cron": MustParseCid("bafk2bzacec4gdxxkqwxqqodsv6ug5dmdbqdfqwyqfek3yhxc2wweh5psxaeq6"), "cron": MustParseCid("bafk2bzacec4gdxxkqwxqqodsv6ug5dmdbqdfqwyqfek3yhxc2wweh5psxaeq6"),
@ -218,7 +218,7 @@ var EmbeddedBuiltinActorsMetadata []*BuiltinActorsMetadata = []*BuiltinActorsMet
"placeholder": MustParseCid("bafk2bzacedfvut2myeleyq67fljcrw4kkmn5pb5dpyozovj7jpoez5irnc3ro"), "placeholder": MustParseCid("bafk2bzacedfvut2myeleyq67fljcrw4kkmn5pb5dpyozovj7jpoez5irnc3ro"),
"reward": MustParseCid("bafk2bzacedra77pcglf7vdca2itcaa4vd6xrxynxmgfgdjdxqxfwqyhtoxehy"), "reward": MustParseCid("bafk2bzacedra77pcglf7vdca2itcaa4vd6xrxynxmgfgdjdxqxfwqyhtoxehy"),
"storagemarket": MustParseCid("bafk2bzacea7g46y7xxu2zjq2h75x6mmx3utz2uxnlvnwi6tzpsvulna3bmiva"), "storagemarket": MustParseCid("bafk2bzacea7g46y7xxu2zjq2h75x6mmx3utz2uxnlvnwi6tzpsvulna3bmiva"),
"storageminer": MustParseCid("bafk2bzacecnh2ouohmonvebq7uughh4h3ppmg4cjsk74dzxlbbtlcij4xbzxq"), "storageminer": MustParseCid("bafk2bzaced7emkbbnrewv5uvrokxpf5tlm4jslu2jsv77ofw2yqdglg657uie"),
"storagepower": MustParseCid("bafk2bzacedd3ka44k7d46ckbinjhv3diyuu2epgbyvhqqyjkc64qlrg3wlgzi"), "storagepower": MustParseCid("bafk2bzacedd3ka44k7d46ckbinjhv3diyuu2epgbyvhqqyjkc64qlrg3wlgzi"),
"system": MustParseCid("bafk2bzacecioupndtcnyw6iq2hbrxag3aufvczlv5nobnfbkbywqzcyfaa376"), "system": MustParseCid("bafk2bzacecioupndtcnyw6iq2hbrxag3aufvczlv5nobnfbkbywqzcyfaa376"),
"verifiedregistry": MustParseCid("bafk2bzaceavldupmf7bimeeacs67z5xdfdlfca6p7sn6bev3mt5ggepfqvhqo"), "verifiedregistry": MustParseCid("bafk2bzaceavldupmf7bimeeacs67z5xdfdlfca6p7sn6bev3mt5ggepfqvhqo"),

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@ -67,6 +67,9 @@ var UpgradeThunderHeight = abi.ChainEpoch(-23)
var UpgradeWatermelonHeight = abi.ChainEpoch(200) var UpgradeWatermelonHeight = abi.ChainEpoch(200)
// This fix upgrade only ran on calibrationnet
const UpgradeWatermelonFixHeight = -100
var DrandSchedule = map[abi.ChainEpoch]DrandEnum{ var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
0: DrandMainnet, 0: DrandMainnet,
} }

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@ -57,6 +57,9 @@ const UpgradeThunderHeight = -23
const UpgradeWatermelonHeight = 400 const UpgradeWatermelonHeight = 400
// This fix upgrade only ran on calibrationnet
const UpgradeWatermelonFixHeight = -100
var SupportedProofTypes = []abi.RegisteredSealProof{ var SupportedProofTypes = []abi.RegisteredSealProof{
abi.RegisteredSealProof_StackedDrg512MiBV1, abi.RegisteredSealProof_StackedDrg512MiBV1,
abi.RegisteredSealProof_StackedDrg32GiBV1, abi.RegisteredSealProof_StackedDrg32GiBV1,

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@ -79,9 +79,11 @@ const UpgradeLightningHeight = 489094
// 2023-04-21T16:00:00Z // 2023-04-21T16:00:00Z
const UpgradeThunderHeight = UpgradeLightningHeight + 3120 const UpgradeThunderHeight = UpgradeLightningHeight + 3120
// 2023-10-19T13:00:00Z // 2023-11-07T13:00:00Z
const UpgradeWatermelonHeight = 1013134 const UpgradeWatermelonHeight = 1013134
const UpgradeWatermelonFixHeight = 1070494
var SupportedProofTypes = []abi.RegisteredSealProof{ var SupportedProofTypes = []abi.RegisteredSealProof{
abi.RegisteredSealProof_StackedDrg32GiBV1, abi.RegisteredSealProof_StackedDrg32GiBV1,
abi.RegisteredSealProof_StackedDrg64GiBV1, abi.RegisteredSealProof_StackedDrg64GiBV1,

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@ -56,6 +56,9 @@ var UpgradeThunderHeight = abi.ChainEpoch(-23)
const UpgradeWatermelonHeight = 50 const UpgradeWatermelonHeight = 50
// This fix upgrade only ran on calibrationnet
const UpgradeWatermelonFixHeight = -1
var DrandSchedule = map[abi.ChainEpoch]DrandEnum{ var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
0: DrandMainnet, 0: DrandMainnet,
} }

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@ -98,6 +98,9 @@ const UpgradeThunderHeight = UpgradeLightningHeight + 2880*21
// ??????? // ???????
var UpgradeWatermelonHeight = abi.ChainEpoch(9999999999) var UpgradeWatermelonHeight = abi.ChainEpoch(9999999999)
// This fix upgrade only ran on calibrationnet
const UpgradeWatermelonFixHeight = -1
var SupportedProofTypes = []abi.RegisteredSealProof{ var SupportedProofTypes = []abi.RegisteredSealProof{
abi.RegisteredSealProof_StackedDrg32GiBV1, abi.RegisteredSealProof_StackedDrg32GiBV1,
abi.RegisteredSealProof_StackedDrg64GiBV1, abi.RegisteredSealProof_StackedDrg64GiBV1,

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@ -110,6 +110,7 @@ var (
UpgradeLightningHeight abi.ChainEpoch = -21 UpgradeLightningHeight abi.ChainEpoch = -21
UpgradeThunderHeight abi.ChainEpoch = -22 UpgradeThunderHeight abi.ChainEpoch = -22
UpgradeWatermelonHeight abi.ChainEpoch = -23 UpgradeWatermelonHeight abi.ChainEpoch = -23
UpgradeWatermelonFixHeight abi.ChainEpoch = -24
DrandSchedule = map[abi.ChainEpoch]DrandEnum{ DrandSchedule = map[abi.ChainEpoch]DrandEnum{
0: DrandMainnet, 0: DrandMainnet,

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@ -23,6 +23,7 @@ import (
"github.com/filecoin-project/lotus/chain/actors" "github.com/filecoin-project/lotus/chain/actors"
) )
var InitActorAddr = builtin.InitActorAddr
var SystemActorAddr = builtin.SystemActorAddr var SystemActorAddr = builtin.SystemActorAddr
var BurntFundsActorAddr = builtin.BurntFundsActorAddr var BurntFundsActorAddr = builtin.BurntFundsActorAddr
var CronActorAddr = builtin.CronActorAddr var CronActorAddr = builtin.CronActorAddr

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@ -23,6 +23,7 @@ import (
smoothingtypes "github.com/filecoin-project/go-state-types/builtin/v8/util/smoothing" smoothingtypes "github.com/filecoin-project/go-state-types/builtin/v8/util/smoothing"
) )
var InitActorAddr = builtin.InitActorAddr
var SystemActorAddr = builtin.SystemActorAddr var SystemActorAddr = builtin.SystemActorAddr
var BurntFundsActorAddr = builtin.BurntFundsActorAddr var BurntFundsActorAddr = builtin.BurntFundsActorAddr
var CronActorAddr = builtin.CronActorAddr var CronActorAddr = builtin.CronActorAddr

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@ -51,6 +51,12 @@ func RegisterManifest(av actorstypes.Version, manifestCid cid.Cid, entries map[s
} }
} }
func AddActorMeta(name string, codeId cid.Cid, av actorstypes.Version) {
manifestMx.Lock()
defer manifestMx.Unlock()
actorMeta[codeId] = actorEntry{name: name, version: av}
}
// GetManifest gets a loaded manifest. // GetManifest gets a loaded manifest.
func GetManifest(av actorstypes.Version) (cid.Cid, bool) { func GetManifest(av actorstypes.Version) (cid.Cid, bool) {
manifestMx.RLock() manifestMx.RLock()

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@ -1,6 +1,7 @@
package filcns package filcns
import ( import (
"bytes"
"context" "context"
_ "embed" _ "embed"
"fmt" "fmt"
@ -19,7 +20,9 @@ import (
actorstypes "github.com/filecoin-project/go-state-types/actors" actorstypes "github.com/filecoin-project/go-state-types/actors"
"github.com/filecoin-project/go-state-types/big" "github.com/filecoin-project/go-state-types/big"
nv18 "github.com/filecoin-project/go-state-types/builtin/v10/migration" nv18 "github.com/filecoin-project/go-state-types/builtin/v10/migration"
init11 "github.com/filecoin-project/go-state-types/builtin/v11/init"
nv19 "github.com/filecoin-project/go-state-types/builtin/v11/migration" nv19 "github.com/filecoin-project/go-state-types/builtin/v11/migration"
system11 "github.com/filecoin-project/go-state-types/builtin/v11/system"
nv21 "github.com/filecoin-project/go-state-types/builtin/v12/migration" nv21 "github.com/filecoin-project/go-state-types/builtin/v12/migration"
nv17 "github.com/filecoin-project/go-state-types/builtin/v9/migration" nv17 "github.com/filecoin-project/go-state-types/builtin/v9/migration"
"github.com/filecoin-project/go-state-types/manifest" "github.com/filecoin-project/go-state-types/manifest"
@ -273,6 +276,10 @@ func DefaultUpgradeSchedule() stmgr.UpgradeSchedule {
StopWithin: 10, StopWithin: 10,
}}, }},
Expensive: true, Expensive: true,
}, {
Height: build.UpgradeWatermelonFixHeight,
Network: network.Version21,
Migration: upgradeActorsV12Fix,
}, },
} }
@ -1869,6 +1876,8 @@ func UpgradeActorsV12(ctx context.Context, sm *stmgr.StateManager, cache stmgr.M
return newRoot, nil return newRoot, nil
} }
var calibnetv12BuggyBundle = cid.MustParse("bafy2bzacedrunxfqta5skb7q7x32lnp4efz2oq7fn226ffm7fu5iqs62jkmvs")
func upgradeActorsV12Common( func upgradeActorsV12Common(
ctx context.Context, sm *stmgr.StateManager, cache stmgr.MigrationCache, ctx context.Context, sm *stmgr.StateManager, cache stmgr.MigrationCache,
root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet,
@ -1894,13 +1903,50 @@ func upgradeActorsV12Common(
) )
} }
manifest, ok := actors.GetManifest(actorstypes.Version12) // check whether or not this is a calibnet upgrade
// we do this because calibnet upgraded to a "wrong" actors bundle, which was then corrected
// we thus upgrade to calibrationnet-buggy in this upgrade
actorsIn, err := state.LoadStateTree(adtStore, root)
if err != nil {
return cid.Undef, xerrors.Errorf("loading state tree: %w", err)
}
initActor, err := actorsIn.GetActor(builtin.InitActorAddr)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to get system actor: %w", err)
}
var initState init11.State
if err := adtStore.Get(ctx, initActor.Head, &initState); err != nil {
return cid.Undef, xerrors.Errorf("failed to get system actor state: %w", err)
}
var manifestCid cid.Cid
if initState.NetworkName == "calibrationnet" {
embedded, ok := build.GetEmbeddedBuiltinActorsBundle(actorstypes.Version12, "calibrationnet-buggy")
if !ok {
return cid.Undef, xerrors.Errorf("didn't find buggy calibrationnet bundle")
}
var err error
manifestCid, err = bundle.LoadBundle(ctx, writeStore, bytes.NewReader(embedded))
if err != nil {
return cid.Undef, xerrors.Errorf("failed to load buggy calibnet bundle: %w", err)
}
if manifestCid != calibnetv12BuggyBundle {
return cid.Undef, xerrors.Errorf("didn't find expected buggy calibnet bundle manifest: %s != %s", manifestCid, calibnetv12BuggyBundle)
}
} else {
ok := false
manifestCid, ok = actors.GetManifest(actorstypes.Version12)
if !ok { if !ok {
return cid.Undef, xerrors.Errorf("no manifest CID for v12 upgrade") return cid.Undef, xerrors.Errorf("no manifest CID for v12 upgrade")
} }
}
// Perform the migration // Perform the migration
newHamtRoot, err := nv21.MigrateStateTree(ctx, adtStore, manifest, stateRoot.Actors, epoch, config, newHamtRoot, err := nv21.MigrateStateTree(ctx, adtStore, manifestCid, stateRoot.Actors, epoch, config,
migrationLogger{}, cache) migrationLogger{}, cache)
if err != nil { if err != nil {
return cid.Undef, xerrors.Errorf("upgrading to actors v12: %w", err) return cid.Undef, xerrors.Errorf("upgrading to actors v12: %w", err)
@ -1928,6 +1974,139 @@ func upgradeActorsV12Common(
return newRoot, nil return newRoot, nil
} }
//////////////////////
var calibnetv12BuggyMinerCID = cid.MustParse("bafk2bzacecnh2ouohmonvebq7uughh4h3ppmg4cjsk74dzxlbbtlcij4xbzxq")
func upgradeActorsV12Fix(ctx context.Context, sm *stmgr.StateManager, cache stmgr.MigrationCache, cb stmgr.ExecMonitor,
root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
stateStore := sm.ChainStore().StateBlockstore()
adtStore := store.ActorStore(ctx, stateStore)
// ensure that the manifest is loaded in the blockstore
if err := bundle.LoadBundles(ctx, stateStore, actorstypes.Version12); err != nil {
return cid.Undef, xerrors.Errorf("failed to load manifest bundle: %w", err)
}
// Load input state tree
actorsIn, err := state.LoadStateTree(adtStore, root)
if err != nil {
return cid.Undef, xerrors.Errorf("loading state tree: %w", err)
}
// load old manifest data
systemActor, err := actorsIn.GetActor(builtin.SystemActorAddr)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to get system actor: %w", err)
}
var systemState system11.State
if err := adtStore.Get(ctx, systemActor.Head, &systemState); err != nil {
return cid.Undef, xerrors.Errorf("failed to get system actor state: %w", err)
}
var oldManifestData manifest.ManifestData
if err := adtStore.Get(ctx, systemState.BuiltinActors, &oldManifestData); err != nil {
return cid.Undef, xerrors.Errorf("failed to get old manifest data: %w", err)
}
newManifestCID, ok := actors.GetManifest(actorstypes.Version12)
if !ok {
return cid.Undef, xerrors.Errorf("no manifest CID for v12 upgrade")
}
// load new manifest
var newManifest manifest.Manifest
if err := adtStore.Get(ctx, newManifestCID, &newManifest); err != nil {
return cid.Undef, xerrors.Errorf("error reading actor manifest: %w", err)
}
if err := newManifest.Load(ctx, adtStore); err != nil {
return cid.Undef, xerrors.Errorf("error loading actor manifest: %w", err)
}
// build the CID mapping
codeMapping := make(map[cid.Cid]cid.Cid, len(oldManifestData.Entries))
for _, oldEntry := range oldManifestData.Entries {
newCID, ok := newManifest.Get(oldEntry.Name)
if !ok {
return cid.Undef, xerrors.Errorf("missing manifest entry for %s", oldEntry.Name)
}
// Note: we expect newCID to be the same as oldEntry.Code for all actors except the miner actor
codeMapping[oldEntry.Code] = newCID
}
// Create empty actorsOut
actorsOut, err := state.NewStateTree(adtStore, actorsIn.Version())
if err != nil {
return cid.Undef, xerrors.Errorf("failed to create new tree: %w", err)
}
// Perform the migration
err = actorsIn.ForEach(func(a address.Address, actor *types.Actor) error {
newCid, ok := codeMapping[actor.Code]
if !ok {
return xerrors.Errorf("didn't find mapping for %s", actor.Code)
}
return actorsOut.SetActor(a, &types.ActorV5{
Code: newCid,
Head: actor.Head,
Nonce: actor.Nonce,
Balance: actor.Balance,
Address: actor.Address,
})
})
if err != nil {
return cid.Undef, xerrors.Errorf("failed to perform migration: %w", err)
}
err = actorsIn.ForEach(func(a address.Address, inActor *types.Actor) error {
outActor, err := actorsOut.GetActor(a)
if err != nil {
return xerrors.Errorf("failed to get actor in outTree: %w", err)
}
if inActor.Nonce != outActor.Nonce {
return xerrors.Errorf("mismatched nonce for actor %s", a)
}
if !inActor.Balance.Equals(outActor.Balance) {
return xerrors.Errorf("mismatched balance for actor %s: %d != %d", a, inActor.Balance, outActor.Balance)
}
if inActor.Address != outActor.Address && inActor.Address.String() != outActor.Address.String() {
return xerrors.Errorf("mismatched address for actor %s: %s != %s", a, inActor.Address, outActor.Address)
}
if inActor.Head != outActor.Head {
return xerrors.Errorf("mismatched head for actor %s", a)
}
// This is the hard-coded "buggy" miner actor Code ID
if inActor.Code != calibnetv12BuggyMinerCID && inActor.Code != outActor.Code {
return xerrors.Errorf("unexpected change in code for actor %s", a)
}
return nil
})
if err != nil {
return cid.Undef, xerrors.Errorf("failed to sanity check migration: %w", err)
}
// Persist the result.
newRoot, err := actorsOut.Flush(ctx)
if err != nil {
return cid.Undef, xerrors.Errorf("failed to persist new state root: %w", err)
}
return newRoot, nil
}
////////////////////
// Example upgrade function if upgrade requires only code changes // Example upgrade function if upgrade requires only code changes
//func UpgradeActorsV9(ctx context.Context, sm *stmgr.StateManager, _ stmgr.MigrationCache, _ stmgr.ExecMonitor, root cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) (cid.Cid, error) { //func UpgradeActorsV9(ctx context.Context, sm *stmgr.StateManager, _ stmgr.MigrationCache, _ stmgr.ExecMonitor, root cid.Cid, _ abi.ChainEpoch, _ *types.TipSet) (cid.Cid, error) {
// buf := blockstore.NewTieredBstore(sm.ChainStore().StateBlockstore(), blockstore.NewMemorySync()) // buf := blockstore.NewTieredBstore(sm.ChainStore().StateBlockstore(), blockstore.NewMemorySync())

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@ -69,7 +69,7 @@ func LoadBundles(ctx context.Context, bs blockstore.Blockstore, versions ...acto
) )
if path, ok := build.BundleOverrides[av]; ok { if path, ok := build.BundleOverrides[av]; ok {
root, err = LoadBundleFromFile(ctx, bs, path) root, err = LoadBundleFromFile(ctx, bs, path)
} else if embedded, ok := build.GetEmbeddedBuiltinActorsBundle(av); ok { } else if embedded, ok := build.GetEmbeddedBuiltinActorsBundle(av, build.NetworkBundle); ok {
root, err = LoadBundle(ctx, bs, bytes.NewReader(embedded)) root, err = LoadBundle(ctx, bs, bytes.NewReader(embedded))
} else { } else {
err = xerrors.Errorf("bundle for actors version v%d not found", av) err = xerrors.Errorf("bundle for actors version v%d not found", av)