[Xenomai-help] Re: high latency every 8 seconds

[Jan Kiszka <jan.kiszka@domain.hid>]

[-- Attachment #1: Type: text/plain, Size: 1656 bytes --]

Theo Veenker wrote:
> Jan Kiszka wrote:
>> Theo Veenker wrote:
>>> Hi all,
>>>
>>> I'm installing xenomai 2.2.5 (kernel 2.6.17.14) on a number of
>>
>> When starting new, pick something new, i.e. 2.3 right now. Only if you
>> have good reasons, staying at older versions is recommended.
> 
> I would love to, but I couldn't get my software running with 2.3.
> I had to convert (a month ago) my software from RTLinux to Xenomai
> having only a few days for it. I have a kernel module and an app
> that talks to it. I use the posix skin. But with 2.3 apparently
> I had to load posixio and something (forgot) manually, but I just
> couldn't get these loaded. Since time was running out I decided
> to stay with 2.2.5 for the time being (unfortunately).

I do understand. But once your time constraints relaxed a bit, please
don't forget to post remaining issues here. Maybe they reveal some real bug.

> 
>>
>>> systems (MSI 945P, Intel P4 3Ghz). My kernel runs fine on several
>>> other/older systems, but on the new systems there is something going
>>> on every 8 seconds. See output of latency test below. What could
>>> this be? Is this an SMI effect?
>>
>> Is CONFIG_XENO_HW_SMI_WORKAROUND selected? What does the kernel output
>> tell you about if it's working? Do you have an ICH7 chipset on your
>> board? Would be another reason to update Xenomai (2.3 takes care of it,
>> 2.2.x doesn't)... :)
>>
>> If this all doesn't help, have a look at this tool:
>>
>> http://www.xenomai.org/index.php/I-pipe:Tracer
>>
>> In any case, please give a feedback on the outcome.
> 
> Thanks. I will.
> 
> Theo
> 

Jan


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 250 bytes --]