linux/tools/verification/models/wip.dot

digraph state_automaton {
	{node [shape = circle] "non_preemptive"};
	{node [shape = plaintext, style=invis, label=""] "__init_preemptive"};
	{node [shape = doublecircle] "preemptive"};
	{node [shape = circle] "preemptive"};
	"__init_preemptive" -> "preemptive";
	"non_preemptive" [label = "non_preemptive"];
	"non_preemptive" -> "non_preemptive" [ label = "sched_waking" ];
	"non_preemptive" -> "preemptive" [ label = "preempt_enable" ];
	"preemptive" [label = "preemptive"];
	"preemptive" -> "non_preemptive" [ label = "preempt_disable" ];
	{ rank = min ;
		"__init_preemptive";
		"preemptive";
	}
}