Re: [Xenomai-help] Adeos/Xenomai Arm Port

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Philippe Gerum wrote:
> On Mon, 2006-10-16 at 17:48 +0200, Schlägl Manfred jun. wrote:
>>3. in-kernel periodic task & in-kernel timer benchmark 
>>
>>-sh-3.00# ./latency -t 2 -T 10
>>== Sampling period: 100 us
>>== Test mode: in-kernel timer handler
>>== All results in microseconds
>>latency: failed to start in-kernel timer benchmark, code -25
> 
> 
> Eh? That's weird. The fact that the RTDM benchmark device could be
> opened, but that a wrong ioctl code seemed to flow to it might be the
> sign of the worm, somewhere in the Adeos syscall propagation path. Btw,
> are the RTDM-based benchmark drivers compiled statically into the
> kernel?

All benchmark drivers (timerbench, switchtest and irqbench) use the
/dev/rttest%d devices, the device index is passed to latency
and irqbench using the -D option whereas switchtest uses the ioctl error
to find the correct device. So this error might simply be the sign that
Manfred did not pass the -D option to latency.

-- 
                                                  Gilles Chanteperdrix