Re: software reset

Jamie Lokier (jamie@shareable.org)
Wed, 30 Apr 2003 08:50:04 +0100

Andi Kleen wrote:
> The most reliable way is to force a triple fault; load zero into
> the IDT register and then trigger an exception. The linux kernel
> does that in fact for reboot and so far I haven't seen any machine failing
> to reset yet.

There are some 486s which don't boot on triple fault, nor on asking
the keyboard controller to pulse the reset line. Hence the 3rd option,
"reboot=bios".

-- Jamie
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/