C123 crashing (?)

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Patrick McHardy kaber at trash.net
Mon Mar 15 13:11:27 UTC 2010


Harald Welte wrote:
> On Fri, Mar 12, 2010 at 12:06:07PM +0100, Patrick McHardy wrote:
> 
>> Yeah, its the one you sent me. I'll try a different one tommorrow.
> 
> any progress / result with that?  

Yes, I've tried using a different phone and it works fine.

> Holger and I have discussed your problems yesterday, but we really don't
> have an idea at this point.  
> 
> Some (relatively stupid) ideas to debug it:
> 
> 1) does hello_world.bin work for you at all?

Yes.

> 2) what happens if you change the timing, i.e. add a couple of delays
>    to see if the reboot happens after a certain fixed wallclock time or
>    really depends on the code that is executed

I've tried disabling the tpu_end_scenario() call, which avoids the
crash. My understanding is that the new settings are not activated
without this, so I guess a good spot would be to add some delays
directly after the tpu_end_scenario() call to see if the crash happens
within the interrupt handlers?

> 3) what about using layer1.bin and the layer23 program on an ARFCN
>    that is produced by OpenBSC + nanoBTS?  This is the most frequently
>    used setup by Dieter, Holger and myself so far.  This way we can
>    exclude the possibility that something received from the real
>    operator GSM network in your location causes the problem

I'll give that a try.

Thanks!




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