[Xenomai-help] Re: Re: Re: Re: Re: A fairly small rtnet/Xenomai

["M. Koehrer" <mathias_koehrer@domain.hid>]

Hi Philippe,

here are some of the results: 
> Please check the following assertions on your setup:
> 
> - does enabling the debug option for the Xenomai nucleus cause Xenomai
> warnings to appear (messages about forced switches of the crashtest task
> to secondary mode), even over 2.6.17 with the very same test code?
Yes, on 2.6.17 I get the line
Xenomai: Switching crashtest to secondary mode after exception #14 from user-space at 0xb7ff2c7c (pid 1616)
On 2.6.19.1, the system freezes, i.e. I cannot see any message.

> 
> - does enabling CONFIG_DEBUG_SPINLOCK and CONFIG_DEBUG_SPINLOCK_SLEEP in
> the kernel hacking section cause Linux warnings to appear while the test
> code runs over 2.6.19, before the box crashes?
I am about to recompile the kernel, this takes a while...

> - does the bug still occurs after the call to the system() routine has
> been replaced by the following frag?
> 
>     if (vfork() == 0)
>             execlp("/bin/ls", "ls", "-l", NULL);
>     else
>             wait(NULL);
> 
I have replaced the system() call by your code fragement. And yes, this works!
No freeze!

Regards

Mathias

-- 
Mathias Koehrer
mathias_koehrer@domain.hid


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