What's "MSG"?
root ([EMAIL PROTECTED]) wrote:
> 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 .
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