Loading Modules, Starting Threads

Hello,

I have got a problem with using an executable Binary in L4. I want several Threads to use it, but I dont know, if thats the right way:

I loaded the executable as an additional module in grub, after that the text- data- and bss-segment were relocated by kickstart into the desired memory areas.

If I start a thread now with the beginning of the textregion as IP, it works, but instead of the assigned Stack, the Bss-Region is used for that. Another Problem is, after the thread reaches the end of the executable, everything terminates, including the roottask, which isn't supposed to. 

Did I get something wrong about Loading Programs? How can I get Threads using their individual Stacks and not all the same bss-region?

Thanks,
Martin
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