I cannot get the first simple example working. int main() { while (1) { if (fork()) _exit(0); } return 0; }

I cannot get the first simple example working. int main() { while (1) { if (fork()) _exit(0); } return 0; } If I run `htop` immediately after typing `./a.out`, it shows a error, Could not create child process - exiting fork: Resource temporarily unavailable However, if I wait a second or more, I cannot find `a.out` in the process list.