Try #6193:

.github/workflows/systest.yml

@@ -5,7 +5,7 @@ on:
     inputs:
       test_name:
         description: "Test to run"
-        default: "."
+        default: "TestCheckpoint"
       log_level:
         description: "Log level"
         default: "debug"

cmd/bootstrapper/server.go

@@ -134,8 +134,40 @@ func (s *Server) Start(ctx context.Context, errCh chan error, params *NetworkPar
 		// start generating fallback data
 		s.eg.Go(
 			func() error {
-				s.genDataLoop(ctx, errCh, last, params.updateActiveSetTime, s.GenFallbackActiveSet)
-				return nil
+				var (
+					errs    = 0
+					maxErrs = 10
+					timer   *time.Timer
+					timeC   <-chan time.Time
+					backoff = 10 * time.Second
+				)
+				for epoch := last; ; epoch++ {
+					wait := time.Until(params.updateActiveSetTime(epoch))
+					select {
+					case <-timeC:
+						if err := s.GenFallbackActiveSet(ctx, epoch); err != nil {
+							errs++
+							timer.Reset(backoff)
+							continue
+						}
+						errs = 0
+						if !timer.Stop() {
+							<-timer.C
+						}
+						timeC = nil
+					case <-time.After(wait):
+						if err := s.GenFallbackActiveSet(ctx, epoch); err != nil {
+							timer = time.NewTimer(backoff)
+							timeC = timer.C
+							if errs >= maxErrs {
+								errCh <- err
+								return err
+							}
+						}
+					case <-ctx.Done():
+						return ctx.Err()
+					}
+				}
 			})
 		s.eg.Go(
 			func() error {

systest/tests/checkpoint_test.go

@@ -32,6 +32,21 @@ func reuseCluster(tctx *testcontext.Context, restoreLayer uint32) (*cluster.Clus
 	)
 }
 
+func TestCheckpoint1(t *testing.T) {
+	// t.Parallel()
+	TestCheckpoint(t)
+}
+
+func TestCheckpoint2(t *testing.T) {
+	// t.Parallel()
+	TestCheckpoint(t)
+}
+
+func TestCheckpoint3(t *testing.T) {
+	// t.Parallel()
+	TestCheckpoint(t)
+}
+
 func TestCheckpoint(t *testing.T) {
 	// TODO(mafa): add new test with multi-smeshing nodes
 	t.Parallel()

systest/tests/distributed_post_verification_test.go

@@ -39,6 +39,7 @@ import (
 )
 
 func TestPostMalfeasanceProof(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 	testDir := t.TempDir()
 

systest/tests/equivocation_test.go

@@ -17,6 +17,7 @@ import (
 )
 
 func TestEquivocation(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 	const bootnodes = 2
 	cctx := testcontext.New(t)

systest/tests/fallback_test.go

@@ -19,6 +19,7 @@ import (
 )
 
 func TestFallback(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 
 	tctx := testcontext.New(t)

systest/tests/nodes_test.go

@@ -22,6 +22,7 @@ func init() {
 }
 
 func TestAddNodes(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 
 	const (
@@ -125,6 +126,7 @@ func TestAddNodes(t *testing.T) {
 }
 
 func TestFailedNodes(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 
 	tctx := testcontext.New(t)

systest/tests/partition_test.go

@@ -176,6 +176,7 @@ func testPartition(t *testing.T, tctx *testcontext.Context, cl *cluster.Cluster,
 }
 
 func TestPartition_30_70(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 
 	tctx := testcontext.New(t)
@@ -190,6 +191,7 @@ func TestPartition_30_70(t *testing.T) {
 }
 
 func TestPartition_50_50(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 
 	tctx := testcontext.New(t)

systest/tests/poets_test.go

@@ -26,6 +26,7 @@ var layersToCheck = parameters.Int(
 )
 
 func TestPoetsFailures(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 	tctx := testcontext.New(t)
 	tctx.Log.Debug("TestPoetsFailures start")
@@ -123,6 +124,7 @@ func testPoetDies(t *testing.T, tctx *testcontext.Context, cl *cluster.Cluster)
 }
 
 func TestNodesUsingDifferentPoets(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 	tctx := testcontext.New(t)
 	if tctx.PoetSize < 2 {
@@ -213,6 +215,7 @@ func TestNodesUsingDifferentPoets(t *testing.T) {
 // TODO: When PoW support is removed, convert this test to verify only the cert path.
 // https://github.com/spacemeshos/go-spacemesh/issues/5212
 func TestRegisteringInPoetWithPowAndCert(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 	tctx := testcontext.New(t)
 	tctx.PoetSize = 2

systest/tests/smeshing_test.go

@@ -29,6 +29,7 @@ import (
 )
 
 func TestSmeshing(t *testing.T) {
+	t.Skip()
 	// TODO(mafa): add new test with multi-smeshing nodes
 	t.Parallel()
 

systest/tests/timeskew_test.go

@@ -14,6 +14,7 @@ import (
 )
 
 func TestShortTimeskew(t *testing.T) {
+	t.Skip()
 	t.Parallel()
 
 	tctx := testcontext.New(t)