Linux 2.6 8xx kernel booting vs watchdog

Marcelo Tosatti marcelo.tosatti at
Thu Jan 13 05:27:58 EST 2005

On Wed, Jan 12, 2005 at 02:41:18PM -0500, Povolotsky, Alexander wrote:
> Hi,
> I wonder if someone could help me with answering couple of my questions:
> How watchdog resetting is handled for PPC 
> in Linux 2.6 on the kernel level ?
> Does one need to add code for it or is it supported "off the shelf" ?

It is not supported off the shelf. 

We (Cyclades) have a timer to periodically touch the watchdog on boot, and afterwards
a watchdog driver which gets periodically written by a userspace daemon. 

I can send a patch if you wish.

> Is "early printk" supported for PPC on 2.6 ?
> If yes - how and where it could be enabled?

Not sure.

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