nanosleep()

[root <agn@city.dk>]

Hi all

I have a problem with the funktion nanosleep.
I am making a RT-linux kernel module and use teh funktion nanosleep, to
sleep for about 1e5 to 5e5 nanoSec.

Sometimes it goes wrong. I recive a "segmentation fault" in my userspace
app. There is a rtl fifo between user/kernel space.
with sometimes i meen : I can write a number between 1 to 5000 times
before it goes wrong.
loged message in kernel (a small bit of it):

May 16 13:07:36 xterm39 kernel: TEST :handler_rs0
May 16 13:07:36 xterm39 kernel: TEST :recived 2 4 2 4
May 16 13:07:36 xterm39 kernel: TEST :writing rest
May 16 13:07:36 xterm39 kernel: TEST :reciving
May 16 13:07:36 xterm39 kernel: TEST :have devided
May 16 13:07:36 xterm39 kernel: divide error: 0000
May 16 13:07:36 xterm39 kernel: CPU:    0

this is some of the code :
        /* delay before first char */
       delay = (long) one_char * wait[0];
       time_delay.tv_sec = 0; /* delay/one_sec; */
       time_delay.tv_nsec = delay; /* % one_sec; */
       MSG("have devided\n");
       nanosleep(&time_delay,&time_delay);
       MSG("have devided 2 \n");          <- I newer recive this
************, well mest of the times, but not after the devide error.

I have included this header files
#include <linux/errno.h>
#include <rtl.h>
#include <time.h>
#include <rtl_time.h>
#include <rtl_sched.h>
#include <rtl_fifo.h>
#include <pthread.h>

Could any please tell me what is wrong .