Re: Detecting ichlpcib watchdog "NO_REBOOT" state

[Thor Lancelot Simon <tls%panix.com@localhost>]

On Fri, Jun 03, 2011 at 11:20:12AM -0400, Sergey Katsev wrote:
> Hi all,
> 
> Question about the ichlpcib watchdog:  is there any way to detect from 
> user-space that the driver found "TCO timer reboot disabled by hardware"?  
> (other than looking through the dmesg output?)
> 
> If I'm understanding correctly, this message is triggered by the driver 
> detecting and not being able to reset the NO_REBOOT flag on the chip, and 
> means that the watchdog is in NMI-only mode, and will not actually reboot the 
> system.
> 
> I'd like to be able to detect this state and use a different watchdog instead 
> in this situation.

I would suggest modifying the driver so that it does not attach in this case 
(since it is
not generally useful when configured this way).

(Please send patches)

Thor