Hi Phong, On 2018-05-02 03:13, Pham, Phong wrote: > Hi, > > I am suspecting that in kernel/ipipe/timer.c:select_root_only_timer() > > When t->irq == per_cpu(ipipe_percpu.hrtimer_irq, icpu), a condition to test > the timer rating against current timer rating before installing the timer is > missing. That is t->rating > percpu_timer->rating (combined with same irq #) > before the condition becomes true.
Conceptually, I-pipe timers should have highest rating. Can you explain in more details why it should be there? Also note that your own code looks suspicious: percpu_timer is a per-cpu variable but is not accesses as such. Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
