>> my system freezes completely when I call
>>
>> /usr/local/rtnet/sbin/rtifconfig rteth0 up
> 
> That starts up the related NIC, specifically enables it's IRQ. Sure you
> are not running into some conflict?

What conflict might that be?

> What does "known to function" precisely mean? What has changed?

Almost nothing. Usually my linux boots from usb. Now since I am growing 
to a "production" machine, I have let the machine boot the identical 
distribution from hard drive.

Now one could think that it is access to the hard drive that causes the 
problem. But that cannot be the case because it is still a "live" 
distribution which is running completely in RAM. The harddrive does the 
job the CDROM or the USB usually plays in a live linux case. Its only 
there to allow loading to RAM. The harddrive is mounted in the same 
place (roughly) where the USB is usually mounted but it is "dead" 
storage and AFAICS does not do anything anymore.

So, essentially nothing has changed. But then again clearly something 
has. But I cannot figure out what could have changed that should affect 
this.

When I plug in the USB and boot from that everything works again. I can 
repeat the trick a hundred times. Works when booting from USB  freezes 
when I booted from harddrive.

Hence the thought that some setting/loading etc is not called when I 
boot from HD which is called when i boot from USB and which causes this 
behaviour.


> 
>> Is there something I am forgetting to do/configure/start before trying 
>> to bring up rtnet?
> 
> Nothing you could forget should bring the box down this way. Even IRQ
> conflicts /should/ be detected these days (BTW: what versions are you
> using?). 
xen 2.3.1 and rtnet 0.9.9



No clue so far, you will likely have to play with some
> variables (NIC hardware if available, Xenomai version if you changed it,
> etc.) and/or try to capture any potential oops via a serial console.
Its not the NIC (see above) no xenomai version changed. How do I set 
things up to give a potential oops via the serial console?

Stupifying.....:(


Roland



> 
> Jan
> 

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