t.Skip("unsupported on Android")
	}
	if _, err := os.Stat("/etc/alpine-release"); err == nil {
		t.Skip("setgid is broken with musl libc - go.dev/issue/39857")
	}
	testSetgid(t)
}

func TestSetgidStress(t *testing.T) {
	if runtime.GOOS == "android" {
		t.Skip("unsupported on Android")
	}
	if _, err := os.Stat("/etc/alpine-release"); err == nil {
		t.Skip("setgid is broken with musl libc - go.dev/issue/39857")
	}

		// Since this test does need root to work, we need to skip it.
		t.Skip("skipping root only test on a non-root builder")
	}
	if runtime.GOOS == "linux" {
		if _, err := os.Stat("/etc/alpine-release"); err == nil {
			t.Skip("skipping failing test on alpine - go.dev/issue/19938")
		}
	}

	// Launch some threads in C.
	const cts = 5
	C.trial(cts)
	defer C.cleanup()

	vs := []struct {
		call           string