From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neri Marschik Content-Type: text/plain; charset="UTF-8" Date: Wed, 18 Jan 2012 13:33:09 +0100 Message-ID: <1326889989.3822.8.camel@domain.hid> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [Xenomai-core] __xnpod_schedule not getting called List-Id: Xenomai life and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai@xenomai.org Hi there Xenomai community, I am implementing a new scheduler for some project and came up with a question. Maybe it's a beginners question based on a misunderstanding. If I don't have a periodic task my "pick" function is not getting called. I put some prints into the code to see what happens: VirtualBox kernel: [ 1052.038250] __xnpod_schedule VirtualBox kernel: [ 1052.038252] xnsched_pick_next VirtualBox kernel: [ 1052.038253] __xnsched_anytime_exception_pick() VirtualBox kernel: [ 1052.038255] __xnsched_anytime_main_pick() VirtualBox kernel: [ 1052.038257] __xnsched_idle_pick() VirtualBox kernel: [ 1052.038690] __xnpod_schedule This is normal behavior which repeats forever as long as there is some periodic task running. If I stop this periodic task my non-periodic tasks which should be run only once are never run because the pick() function is not called again. I noticed that __xnpod_schedule doesn't get called because of this: if (testbits(sched->status, XNKCOUT|XNINIRQ|XNSWLOCK|XNRESCHED) != XNRESCHED) return; in: pod.h static inline void xnpod_schedule(void) I'd appreciate if anyone has an idea about that. Btw. running version 2.5.5.2 Best regards