Can not free irq 0

[Parmenides]

2011/8/29 Mulyadi Santosa <mulyadi.santosa at gmail.com>:
> Hi :)
>
> On Sun, Aug 28, 2011 at 17:13, Parmenides <mobile.parmenides at gmail.com> wrote:
>> The irq 8 is really occupied by rtc and its initial flags is set as
>> IRQF_DISABLED.
>
> Ah, great you found it :) I could only guess it...

Thanks for your encouragement. Your guess is really my important guide. :-)

>
> I think it is somewhat make sense to use IRQF_DISABLED here, since
> this kind of irq should ask for exclusive line and none other should
> ever bug with it. That way RTC handling is handled as fast and as
> efficiently as possible.

So, it is an good idea to maintain kernel's logical integrity. I am
just do it for funning rather than productive purpose.