diff --git a/extern/sector-storage/ffiwrapper/sealer_test.go b/extern/sector-storage/ffiwrapper/sealer_test.go
index 5d96f187f..25a37e470 100644
--- a/extern/sector-storage/ffiwrapper/sealer_test.go
+++ b/extern/sector-storage/ffiwrapper/sealer_test.go
@@ -31,6 +31,7 @@ import (
 	"github.com/filecoin-project/specs-storage/storage"
 
 	ffi "github.com/filecoin-project/filecoin-ffi"
+	"github.com/filecoin-project/filecoin-ffi/generated"
 
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper/basicfs"
@@ -38,7 +39,34 @@ import (
 	"github.com/filecoin-project/lotus/extern/storage-sealing/lib/nullreader"
 )
 
+var rustLogger = func() *bytes.Buffer {
+	os.Setenv("RUST_LOG", "info")
+
+	var bb bytes.Buffer
+	r, w, err := os.Pipe()
+	if err != nil {
+		panic(err)
+	}
+
+	go func() {
+		_, _ = io.Copy(&bb, r)
+		runtime.KeepAlive(w)
+	}()
+
+	resp := generated.FilInitLogFd(int32(w.Fd()))
+	resp.Deref()
+
+	defer generated.FilDestroyInitLogFdResponse(resp)
+
+	if resp.StatusCode != generated.FCPResponseStatusFCPNoError {
+		panic(generated.RawString(resp.ErrorMsg).Copy())
+	}
+
+	return &bb
+}()
+
 func init() {
+	rustLogger.Reset()
 	logging.SetLogLevel("*", "DEBUG") //nolint: errcheck
 }
 
@@ -853,3 +881,59 @@ func TestAddPiece512MPadded(t *testing.T) {
 
 	require.Equal(t, "baga6ea4seaqonenxyku4o7hr5xkzbqsceipf6xgli3on54beqbk6k246sbooobq", c.PieceCID.String())
 }
+
+func TestMulticoreSDR(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping test in short mode")
+	}
+
+	getGrothParamFileAndVerifyingKeys(sectorSize)
+
+	dir, err := ioutil.TempDir("", "sbtest")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	miner := abi.ActorID(123)
+
+	sp := &basicfs.Provider{
+		Root: dir,
+	}
+	sb, err := New(sp)
+	if err != nil {
+		t.Fatalf("%+v", err)
+	}
+
+	cleanup := func() {
+		if t.Failed() {
+			fmt.Printf("not removing %s\n", dir)
+			return
+		}
+		if err := os.RemoveAll(dir); err != nil {
+			t.Error(err)
+		}
+	}
+	defer cleanup()
+
+	si := storage.SectorRef{
+		ID:        abi.SectorID{Miner: miner, Number: 1},
+		ProofType: sealProofType,
+	}
+
+	s := seal{ref: si}
+
+	// check multicore
+	_ = os.Setenv("FIL_PROOFS_USE_MULTICORE_SDR", "1")
+	rustLogger.Reset()
+	s.precommit(t, sb, si, func() {})
+
+	ok := false
+	for _, s := range strings.Split(rustLogger.String(), "\n") {
+		if strings.Contains(s, "create_label::multi") {
+			ok = true
+			break
+		}
+	}
+
+	require.True(t, ok)
+}