static struct softirq_action softirq_vec[NR_SOFTIRQS] __cacheline_aligned_in_smp;

void new_thread(void *data)
 {
    printk("-----------------------------------------------\n");
    printk("I am new_thread, my pid is %d\n",current->pid);
    return;
 }

 static int __init
 main_func(void)
 {
    kernel_thread(new_thread,0,0);
    unsigned long i = 0;
    for(i; i<1000; i++)
             schedule();
    printk("------------------------------------------------\n");
    printk("I am main thread, my pid is %d", current->pid);
    return 0;
 }

insmod $name
 dmesg|tail

 ------------------------------------------------
 I am main thread, my pid is 5019
 ------------------------------------------------
 I am new_thread, my pid is 5020