What's wrong in this simple posix example ?

[Matteo]

Hi
I'm working with posix thread and I'm trying to launch 2 thread with different 
priority but I have a lot of error of memory but I'm using a really simple 
example of one threads that uses a timed wait and onother one that is simple 
launched. 
The code is just below ;

#include <sched.h>
#include <bsp.h>
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>

  pthread_mutex_t mutex;
  pthread_cond_t cond;
  struct timespec timeout;
  struct sched_param param;
  pthread_attr_t attr;
  
void * print_hello(void * arg){
  printf("<child>: Hello World! task with max priority \n");
  clock_gettime( CLOCK_REALTIME, &timeout );
  timeout.tv_sec += 3;
  timeout.tv_nsec = 0;
  printf("The task is coming to enter in a timed wait\n");
  pthread_cond_timedwait(&cond, &mutex, &timeout);
  printf("The task is coming out from the timed wait \n");
  return NULL;
}

void * print_hello_a(void * arg){
  printf(" <child>: Hello World! Task with lowest priority ");
  return NULL;
}


void *POSIX_Init()
{
  pthread_t child1;
  pthread_t child2;
  pthread_attr_init(&attr);
  pthread_attr_setschedpolicy(&attr, SCHED_FIFO);
  pthread_mutex_init( &mutex, NULL );
  pthread_cond_init( &cond, NULL );

  printf("<main> Enter in the main \n");

  printf("Creating first task \n");
  param.sched_priority = sched_get_priority_max(SCHED_FIFO);
  pthread_attr_setschedparam(&attr, &param);
  if ( pthread_create( &child1, &attr, print_hello, NULL) || 
pthread_setschedparam(child1, SCHED_FIFO, &param) ) {
  printf("Thread cannot be created or you have not enough privileges to set 
priority!!!!\n");
  exit(1);
  }
  printf("First Task created \n");
  printf("Creating second task \n");
  param.sched_priority = sched_get_priority_max(SCHED_FIFO) - 1;
  pthread_attr_setschedparam(&attr, &param);
  if ( pthread_create( &child2, &attr, print_hello_a, NULL) || 
pthread_setschedparam(child2, SCHED_FIFO, &param) ) {
	printf("Thread cannot be created or you have not enough privileges to 
set priority!!!!\n");
	exit(1);
  }
  printf("Second task created \n");

printf("<main> Out of the main\n");
  pthread_join( child1, NULL );
  pthread_join( child2, NULL );

  exit(0);
}
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_TEST_NEEDS_TIMER_DRIVER
#define CONFIGURE_MAXIMUM_POSIX_THREADS              10
#define CONFIGURE_MAXIMUM_POSIX_CONDITION_VARIABLES  10
#define CONFIGURE_MAXIMUM_POSIX_MUTEXES              10
#define CONFIGURE_POSIX_INIT_THREAD_TABLE
#define CONFIGURE_INIT
#include <rtems/confdefs.h>


What's wrong?
I don't understand what could be the problem!
Someone can help me ?

Really thanks in advance

Matteo