if s.UnprotectedDebugSocket != nil {
		go func() {
			defer utilruntime.HandleCrash()
			klog.Error(s.UnprotectedDebugSocket.Run(stopCh))
		}()
	}

	// spawn a new goroutine for closing the MuxAndDiscoveryComplete signal
	// registration happens during construction of the generic api server
	// the last server in the chain aggregates signals from the previous instances
	go func() {

	cmd.Env = append(cmd.Env, "GO_WANT_HELPER_PROCESS=1")
	cmd.Env = append(cmd.Env, "TMP="+newtmp)
	cmd.Env = append(cmd.Env, "TEMP="+newtmp)
	output, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("Failed to spawn child process: %v %q", err, string(output))
	}
	if want, have := newtmp, string(output); have != want {
		t.Fatalf("unexpected child process output %q, want %q", have, want)
	}
}

// (This test hung on a gomote with -count=100 after only a few iterations.)
func TestConcurrentExec(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())

	// This test will spawn nHangs subprocesses that hang reading from stdin,
	// and nExits subprocesses that exit immediately.
	//
	// When issue #61080 was present, a long-lived "hang" subprocess would