Gilles Chanteperdrix wrote:
> Abhijit Majumdar wrote:
>> Hi Philippe
>>
>> I have attached a standalone test program which crashes my system. It
>> uses poxis skin to create a simple task which sleeps for 10 micro sec
>> and wakes up and continues to do so until the user kills the process.
>>
>> Interesting things note --
>>
>> 1. If I uncomment the printf statement at the beginning of the
>> while loop the program does not crash any more.
>> 2. OR if I use rt_task_sleep instead of clock_nanosleep it does
>> not crash.
>>
>> I am using xenomai 2.5.2 and the arm platform has kernel 2.6.28.
>
> That is a not vague. In any case, 10us on an ARM is much too short. As I
> think I already told someone at pivotal systems, ARM latencies are
> larger than 50 us, and most of the time larger than 100us. So, asking
> for a 10us sleep is preposterous.
>
> However, if you want your report to be useful:
> - please try the latest version (that would be Xenomai 2.5.3)
> - send us the full log of the serial console, not the part you think is
> relevant (the error comes here while xnpod_schedule is trying to print a
> message, the interesting part is not the failure of add_preempt_count,
> but probably more the error message which xnpod_schedule wants to print).
> - sens us your kernel configuration.
And include the version of the I-pipe patch you are using.
>
--
Gilles.
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