Re: Detecting ichlpcib watchdog "NO_REBOOT" state

[christos%astron.com@localhost (Christos Zoulas)]

In article <20110603160525.GA5171%panix.com@localhost>,
Thor Lancelot Simon  <tls%panix.com@localhost> wrote:
>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).

Or set a sysctl to indicate this.

christos