System-Clock speeds up

malte.witt at sieb-meyer.de malte.witt at sieb-meyer.de
Mon Jul 19 11:30:16 CEST 2004


Hi,

I still experience problems with my system clock when running rtai_lxrt - 
scheduler. All other schedulers work fine.
I broke my problem down to following basic (and quite simple) example. I 
do following steps to load module:

1) insmod /usr/realtime/modules/rtai_lxrt.ko
2) insmod test_mod.ko

Whenever test_mod executes the "start_rt_timer" command, my real time 
clock starts running nuts. It almost runs three times as fast as it is 
supposed to ...
Thread-timing is also too fast !
When unloading test_mod everything is working fine again.,

my test_mod.c:

#include <linux/module.h>
#include <linux/config.h>

#include <rtai_sched.h>

int sl4_mm_init_module(void)
{
    rt_set_oneshot_mode();
    start_rt_timer(0);

    return 0;
}

void sl4_mm_cleanup_module(void)
{
    stop_rt_timer();
}

module_init(sl4_mm_init_module);
module_exit(sl4_mm_cleanup_module);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Malte Witt");
MODULE_DESCRIPTION("Test Driver");

Anyone out there who can help me? Anyone with similar problems?

Greetings,
Malte Witt
--
SIEB & MEYER AG
Sonder-CNC / Dipl. Ing. (FH) Malte Witt
Auf dem Schmaarkamp 21
21339 Lüneburg
Germany
Tel.: +49-4131-203 1618
Fax.: +49-4131-38562
E-mail: development(at)sieb-meyer.de
www.sieb-meyer.de





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