Teresa Noviello wrote:
> Hi! I have wrote an RTT program, it's a little bit different from that in
> /examples/xenomai/posix, using rtnet and RTAI, in user space (LXRT module).
> It works fine but when i try to extend the socket pool of the sockets, i
> have no error messages but after the call the program causes kernel panic!
> The structure of the program is:
>
> sock = rt_dev_socket(AF_INET, SOCK_DGRAM,0);
> if (sock<0){
> ...
> }
>
> ret = ret_dev_ioctl(sock, RTNET_RTIOC_EXTPOOL, &add_rtskbs);
>
> if(ret != add_rtskbs) {
> exit(1);
> } else {
> printf("Buffer pool extended\n");
> }
>
> //...
>
> //rt_task_init
>
> //etc
>
> You see that i create the socket before rt_task_init call, but all works
> fine without "rt_dev_ioct" call.
> What can i do?AFAIK, you are not allowed to use RTDM (i.e. LXRT) services in a user space task before invoking rt_task_init* under RTAI. Any reason for the current ordering? If not, try to flip it. Jan
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