From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: "Terje Frøysa" <Terje.Froysa@sintef.no>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai] WARNING: at arch/arm/kernel/ipipe.c:157 ipipe_set_irq_affinity+0x47/0x70()
Date: Mon, 1 Dec 2014 08:34:33 +0100 [thread overview]
Message-ID: <20141201073433.GR2964@hermes> (raw)
In-Reply-To: <314E5ECDAA86314791309FA670550F89C9C4FD8A@SINTEFEXMBX05.sintef.no>
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.
next prev parent reply other threads:[~2014-12-01 7:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-01 5:54 [Xenomai] WARNING: at arch/arm/kernel/ipipe.c:157 ipipe_set_irq_affinity+0x47/0x70() Terje Frøysa
2014-12-01 7:34 ` Gilles Chanteperdrix [this message]
2014-12-01 8:26 ` Terje Frøysa
2014-12-01 8:50 ` Gilles Chanteperdrix
2014-12-01 11:06 ` Terje Frøysa
2014-12-01 11:16 ` Gilles Chanteperdrix
2014-12-01 11:35 ` Hidde Verstoep
2014-12-01 11:39 ` Terje Frøysa
2014-12-01 18:54 ` Gilles Chanteperdrix
2014-12-01 15:19 ` Lennart Sorensen
2014-12-01 15:30 ` Gilles Chanteperdrix
2014-12-01 23:35 ` Lennart Sorensen
2014-12-01 23:37 ` Gilles Chanteperdrix
2014-12-01 23:50 ` Lennart Sorensen
2014-12-01 23:55 ` Gilles Chanteperdrix
2014-12-01 23:57 ` Lennart Sorensen
2014-12-01 15:43 ` Terje Frøysa
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