Re: [PATCH 7/10 v2] Generic Watchdog Timer Driver

From: Mark Lord
Date: Sun Jun 19 2011 - 13:29:18 EST

On 11-06-19 10:19 AM, Alan Cox wrote:
>>> Then you'd need an additional interface to specify which watchdog as soon
>>> as we support multiple watchdogs.
>> You can always have multiple ways of setting nowayout -- hardware requirements,
>> global module option, local module option, and a new ioctl command -- but
>> what is being used is then the logical OR of all of them.
> An ioctl for it would make a lot of sense as watchdogs are often compiled
> in so currently there isn't a good way to runtime set this.

I wouldn't mind a kernel parameter to enable a hardware watchdog timer at boot.
Currently, there's a window at startup where the watchdog is not enabled,
and the system could lock up and die in there without it being triggered.

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