pthreads rebooting uCLinux

I have a nios II 1.1 setup on the nios dev kit which seems to work well: JTAG console, telnet, ftp and http are OK and debugging applications works.

But when I try to create a pthread (I tried the ex1 sample) then the nios system reboots.

Am I missing something ?

(the ex1.c sample code is below)

Thanks,

Marc

# include <stddef.h># include <stdio.h># include <unistd.h># include "pthread.h"

void * process(void * arg)

{

int i;

fprintf(stderr, "Starting process %s\n", (char *) arg);

for (i = 0; i < 10000; i++) {

write(1, (char *) arg, 1);

}

return NULL;

}

int main(void)

{

int retcode;

pthread_t th_a, th_b;

void * retval;

retcode = pthread_create(&th_a, NULL, process, (void *) "a");

if (retcode != 0) fprintf(stderr, "create a failed %d\n", retcode);

else fprintf(stderr, "create a succeeded %d\n", retcode);

retcode = pthread_create(&th_b, NULL, process, (void *) "b");

if (retcode != 0) fprintf(stderr, "create b failed %d\n", retcode);

else fprintf(stderr, "create b succeeded %d\n", retcode);

retcode = pthread_join(th_a, &retval);

if (retcode != 0) fprintf(stderr, "join a failed %d\n", retcode);

else fprintf(stderr, "join a succeeded %d\n", retcode);

retcode = pthread_join(th_b, &retval);

if (retcode != 0) fprintf(stderr, "join b failed %d\n", retcode);

else fprintf(stderr, "join b succeeded %d\n", retcode);

return 0;

}