Thanks Gilles, I don't know why the debian kernel for the Sitara have SMP enabled. It sounds like a good idea to turn it off then...
Best regards Terje -----Original Message----- From: Gilles Chanteperdrix [mailto:[email protected]] Sent: 1. desember 2014 08:35 To: Terje Frøysa Cc: [email protected] Subject: Re: [Xenomai] WARNING: at arch/arm/kernel/ipipe.c:157 ipipe_set_irq_affinity+0x47/0x70() On Mon, Dec 01, 2014 at 05:54:36AM +0000, Terje Frøysa wrote: > Dear Forum, > > Occasionally I get the warning listed below on my Beaglebone Black > console. I am running Debian 3.8.13-bone67 with Xenomai 2.6.4 > > I am running four RTDM modules handling interrupts from GPIO pins. > > As far as I have found, this kind of warnings can be associated with > inappropriate calls from user space. But I cannot find such calls in > my code. The irq is requested by a RTDM kernel module when issuing a > device open call from user space. Yes, there are several such issues in Xenomai 2.x. Note however that the Beaglebone is uniprocessor, whereas ipip_set_irq_affinity is called when CONFIG_SMP was enabled. Enabling CONFIG_SMP for an uniprocessor is not recommended with Xenomai 2.x, as it gives slightly worst performances. -- Gilles. _______________________________________________ Xenomai mailing list [email protected] http://www.xenomai.org/mailman/listinfo/xenomai
