Re: [Xenomai-help] Floating Point Exceptions in RT-Tasks

[Philippe Gerum <rpm@xenomai.org>]

Philippe Gerum wrote:
> thomas.debes@domain.hid wrote:
>> Thanks for testing it - that is exactly what I would like to see. Obviously it's a kernel/I-Pipe related thing which prevents me from getting the exception. Unfortunately updating to kernel 2.6 is not an option for now.
>>
> 
> I'm afraid this is not I-pipe related, this would have been too easy. The test
> snippet works fine here as well on a lite5200 + ipipe-2.4.25-1.2-02, ELDK-4.1
> environment.
> 
> Now we should suspect something going on with your target environment; which
> libc are you based on?
>

Works fine with ELDK-3.1.1 rootfs as well.

> 
>> Thomas
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Wolfgang Grandegger [mailto:wg@domain.hid
>> Gesendet: Mittwoch, 18. Februar 2009 19:59
>> An: Debes, Thomas RAEK3 MRA
>> Cc: xenomai@xenomai.org; Gilles Chanteperdrix
>> Betreff: Re: [Xenomai-help] Floating Point Exceptions in RT-Tasks
>>
>> Wolfgang Grandegger wrote:
>>> thomas.debes@domain.hid wrote:
>>>> Unfortunately I don't have a newer kernel, I will talk to Wolfgang Grandegger, maybe he can do a short test with my formerly attached sample application.
>>> I will try it out on my TQM5200 board later today or tomorrow.
>> With I-Pipe v2.4-03, Xenomai v2.5-devel (SVN revision 4519) and Linux
>> 2.6.26 on my TQM85200 I get:
>>
>>   -bash-3.2# ./fpu-exception-test
>>   Floating point exception
>>
>>   -bash-3.2# dmesg|tail
>>   ...
>>   Xenomai: Switching trivial to secondary mode after
>>   exception #1792 from user-space at 0x10001840 (pid 1127)
>>
>> Is that the expected behavior?
>>
>> Wolfgang.
>>
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> 
> 


-- 
Philippe.