defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(2))

	// Start signaller
	atomic.StoreInt32(&issue9400.Baton, 0)
	go func() {
		// Wait for RewindAndSetgid
		for atomic.LoadInt32(&issue9400.Baton) == 0 {
			runtime.Gosched()
		}
		// Broadcast SIGSETXID
		runtime.LockOSThread()
		C.setgid(0)
		// Indicate that signalling is done
		atomic.StoreInt32(&issue9400.Baton, 0)
	}()

	// Grow the stack and put down a test pattern

	alias("sync", "runtime_LoadAcquintptr", "internal/runtime/atomic", "LoadAcq64", p8...) // linknamed

	// Aliases for atomic store operations
	alias("internal/runtime/atomic", "Storeint32", "internal/runtime/atomic", "Store", all...)
	alias("internal/runtime/atomic", "Storeint64", "internal/runtime/atomic", "Store64", all...)

		{"LoadInt32", Func, 0},
		{"LoadInt64", Func, 0},
		{"LoadPointer", Func, 0},
		{"LoadUint32", Func, 0},
		{"LoadUint64", Func, 0},
		{"LoadUintptr", Func, 0},
		{"Pointer", Type, 19},
		{"StoreInt32", Func, 0},
		{"StoreInt64", Func, 0},
		{"StorePointer", Func, 0},
		{"StoreUint32", Func, 0},
		{"StoreUint64", Func, 0},
		{"StoreUintptr", Func, 0},
		{"SwapInt32", Func, 2},