const runtime.stackPoisonMin

3 uses

	runtime (current package)
		debug.go#L216: 	if gp.stackguard0 < stackPoisonMin {
		debug.go#L235: 	if gp.stackguard0 < stackPoisonMin {
		stack.go#L142: 	stackPoisonMin = uintptrMask & -4096