BOUNCE rtl@rtlinux.org: Approval required: Non-member submissionfrom [Uwe Damm <damm@irf.de>] (fwd)

[Der Herr Hofrat <der.herr@hofr.at>]

>From owner-rtl Fri May 18 05:59:10 2001
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From: Uwe Damm <damm@irf.de>
To: rtl@rtlinux.org
Subject: PThread crashing with period=100usec
Date: Fri, 18 May 2001 13:33:57 +0000
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Dear RTLinux User,

if I start a PThread with period equal to 100us my System hangs, while
shutting down XDM:
insmod hello.o
xdm stop  (or xdm start)
--> hangup or reboot

hello.c:
#include <rtl.h>
#include <time.h>
#include <pthread.h>
#include <sys/io.h>
#include <math.h>
 
#define THREAD_SPEED 100000
 
pthread_t thread;
 
void * start_routine(void *arg)
{
  int l_cnt=0;
 
  while (1) {
    pthread_wait_np ();
 
// just to say hello one time each second
    if(!(l_cnt%(1000000000/THREAD_SPEED)))
      rtl_printf("testmsg %d\n",l_cnt/(1000000000/THREAD_SPEED));
    l_cnt++;
  }// while(1)
  return 0;
}
 
int init_module(void) {
  rtl_printf("hello started\n");
  pthread_create (&thread, NULL, start_routine, 0);
  pthread_make_periodic_np (thread, gethrtime(), THREAD_SPEED);
  return 0;
}
 
void cleanup_module(void) {
  pthread_delete_np (thread);
  rtl_printf("hello stopped\n");
}

 
System is Athlon 550Mhz, RTLinux-3.0, Linux-2.2.18 (XFree 4.0.02, KDE2.1,
Suse7.0)

With Pentium 200, RTLinux-3.0, Linux-2.2.18 (XFree 3.3.6, KDE1.1.2  Suse6.4)
	everything is fine

Any idea, whats up???

caiuo uwe

Please answer directly, I am not in this list, cause our sysadmin was angry
with all these VIRUS-bullshit, sorry.