systimer_init_periodic_nq
systimer_init_periodic_nq(&emergency_intr_timer[cpuid],
systimer_init_periodic_nq(&ill_timer, ithread_livelock_wakeup,
systimer_init_periodic_nq(&systimer_rand, rand_thread_wakeup, NULL, 25);
systimer_init_periodic_nq(&dn_clock, dummynet_clock, NULL, dn_hz);
systimer_init_periodic_nq(&dn_clock, dummynet_clock, NULL, dn_hz);
systimer_init_periodic_nq(&dn_clock, dummynet_clock, NULL, dn_hz);
systimer_init_periodic_nq(&comm->pollclock, func, comm, 1);
void systimer_init_periodic_nq(systimer_t, systimer_func_t, void *, int64_t);