From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
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 16:30:57 +0100 [thread overview]
Message-ID: <20141201153057.GJ23220@hermes> (raw)
In-Reply-To: <20141201151951.GG24110@csclub.uwaterloo.ca>
On Mon, Dec 01, 2014 at 10:19:51AM -0500, Lennart Sorensen wrote:
> On Mon, Dec 01, 2014 at 05:54:36AM +0000, Terje Frøysa wrote:
> > 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.
>
> I just changed the code to not give the warning. The omap-gpio driver
> doesn't support setting affinity, and the linux irq driver has no issue
> with that, so perhaps xenomai/ipipe has no reason to have a problem with
> it either.
On the other hand, this is just a warning, it does not prevent the
system from working, and this warning warns us about a real problem:
we can not set the irq affinity of this driver.
--
Gilles.
next prev parent reply other threads:[~2014-12-01 15:30 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
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 [this message]
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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