Messages in this thread | | | Date | Fri, 11 Dec 2009 10:21:59 +0000 | From | Mark Brown <> | Subject | Re: Questions about Watch Dog Timer under Linux. |
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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.
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