[etherlab-users] Memory for kernel module

Dr.-Ing. Wilhelm Hagemeister hm at igh-essen.com
Fri Jan 14 09:18:10 CET 2011

Hello Jasper,

please tell a bit more about your model. Do you use large matrices as
parameter (This is usually the problem)?

Regards Wilhelm.

Am 13.01.2011 14:08, schrieb Westpfahl Jasper:
> Dear Etherlab-friends,
> I've got a problem with memory allocation and I hope, somebody can help me...
> Building a kernel modul with rtai stack size (in simulink configuration parameters / Etherlab C code generation options) works with values of 20000 and 200000. 
> When inserting the module with 20000, it works fine, meaning that I get a connection to the realtime-process, but the stack size is not big enough to operate the model properly.
> When inserting the module with 200000 (insmod tb_kmod.ko), I got the messsage
> insmod: error inserting 'tb_kmod.ko': -1 Cannot allocate memory
> Can anybody tell me, where and how to adjust the accepted Rtai stack size?
> /var/log/messages is attached.
> Thank You very much in advance!
> Jasper
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