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Date: Mon, 07 Mar 2011 12:50:27 +0100
From: Wolfgang Grandegger <wg@domain.hid>
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Subject: Re: [Xenomai-help] irqloop hangs on Beagleboard ARM
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai@xenomai.org

On 03/07/2011 09:29 AM, Gilles Chanteperdrix wrote:
> Eric Eric wrote:
>> Hi, I'm attempting to run irqloop/irqbench and irqloop just appears to
>> hang indefinitely.  Behavior is the same with -t0 and -t1.  I am able
>> to successfully run other tests such as latency and switchtest.  Below
>> is the output of strace ./irqloop -t1. xeno_irqbench is loaded, I have
>> a null modem cable connected to an x86 running irqbench and have
>> disabled the serial log output and serial tty on the beagle.
> 
> I am not sure, but I think irqloop currently only works on x86. You
> should try gpioirqbench instead.
> 
> http://www.denx.de/wiki/DULG/AN2008_03_Xenomai_gpioirqbench


Yes, irqbench requires a 16650-compatible serial or parallel interface
accessible via ioports, which is usually not available on embedded
systems. In contrast, gpioirqbench uses GPIO pins but getting it working
on the Beagle board is also not straight-forward. At least it does not
work out-of-the-box.

Wolfgang.