Re: Questions about Watch Dog Timer under Linux.

[Mark Brown]

On Fri, Dec 11, 2009 at 04:27:55PM +0800, Cypher Wu wrote:

Please reply in-line to e-mails, it makes the conversation much easier
to follow.

> It seems WATCHDOG_NOWAYOUT is a software mechanism? If it is defined
> as 1 then the WDT can't be stopped if it has been started whether bye
> closing the device file or writing the magic character 'V'.

Yes, it's a kernel build time configurable option to select this
behaviour.  In effect all you'd be doing is making a driver which turns
it on all the time.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/