[microblaze-uclinux] System hangs when using GDB

[pcolodron@xxxxxxxx]

Hello everybody,

I am experiencing some problems when debugging multi-threaded user  
applications and I would like to know if you could help me.

I am working with a Xilinx Video Starter Kit (Spartan3A 3400 DSP) and  
Petalinux v0.30.

My uClinux system has network support (using ethernet lite, 10Mbps)  
and it seems that it works fine. I can ping from my PC to uClinux and  
vice versa with no packet loss. I can also do a telnet from the PC to  
uClinux and it works as well.

What I am trying to do is to debug the application 'thdm' using the tutorials:

http://developer.petalogix.com/wiki/UserGuide/Debugging/UserApplications
http://developer.petalogix.com/wiki/UserGuide/Debugging/MultiThreaded

When I click 'Run' in GDB, I can see the message 'Remote debugging  
from host 192.168.0.2' (my PC's IP) on the console. However, the  
debugger does not do anything. It seems that it is 'thinking' but it  
gets stuck there.

Moreover, the console does not work anymore. It does not receive my  
keystrokes so it does not do anything when I press Ctrl+C.

Do you have any hint about what could be happening? My ethernet  
connections seems to be OK so I guess it something related to the  
debugger. Could the error appear due to the optimization when  
compiling the applications?

Thank you very much for your help in advance.

Kind regards,

Pablo Colodron

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