void die_if_kernel()

in kernel/traps.c [212:273]
42 lines of code
10 McCabe index (conditional complexity)

void die_if_kernel(char *str, struct pt_regs *regs, long err)
{
	if (user_mode(regs)) {
		if (err == 0)
			return; /* STFU */

		parisc_printk_ratelimited(1, regs,
			KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
			current->comm, task_pid_nr(current), str, err, regs->iaoq[0]);

		return;
	}

	bust_spinlocks(1);

	oops_enter();

	/* Amuse the user in a SPARC fashion */
	if (err) printk(KERN_CRIT
			"      _______________________________ \n"
			"     < Your System ate a SPARC! Gah! >\n"
			"      ------------------------------- \n"
			"             \\   ^__^\n"
			"                 (__)\\       )\\/\\\n"
			"                  U  ||----w |\n"
			"                     ||     ||\n");
	
	/* unlock the pdc lock if necessary */
	pdc_emergency_unlock();

	/* maybe the kernel hasn't booted very far yet and hasn't been able 
	 * to initialize the serial or STI console. In that case we should 
	 * re-enable the pdc console, so that the user will be able to 
	 * identify the problem. */
	if (!console_drivers)
		pdc_console_restart();
	
	if (err)
		printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
			current->comm, task_pid_nr(current), str, err);

	/* Wot's wrong wif bein' racy? */
	if (current->thread.flags & PARISC_KERNEL_DEATH) {
		printk(KERN_CRIT "%s() recursion detected.\n", __func__);
		local_irq_enable();
		while (1);
	}
	current->thread.flags |= PARISC_KERNEL_DEATH;

	show_regs(regs);
	dump_stack();
	add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);

	if (in_interrupt())
		panic("Fatal exception in interrupt");

	if (panic_on_oops)
		panic("Fatal exception");

	oops_exit();
	make_task_dead(SIGSEGV);
}