Re: NetBSD-5 ichlpcib watchdog timer seems to be broken for some revisions of the ichlpcib chip set.

[buhrow%lothlorien.nfbcal.org@localhost (Brian Buhrow)]

        Hello.  Of the 4 examples I have working at the moment, I have two
conditions:

1.  wdogctl works fine.  It sets the timer, and the tickling function
works, either from user or kernel mode and, the machine only reboots if the
tickling function fails to be called.

2.  The tickling function appears not to work. The timer is set and reboots
after the appropriate amount of time of not being tickled. 

        In all the cases I've reported where I see behavior number 2, I see
behavior number 1, i.e. everything works fine, under NetBSD-4.  This seems
to be a NetBSD-5 phenomenon.

        The chip set which does work properly under NetBSD-5 reports as:
ichlpcib0 at pci0 dev 31 function 0
ichlpcib0: Intel 82801DB LPC Interface Bridge (rev. 0x02)

Hope this helps.
-Brian
On Jun 29,  2:14pm, Joerg Sonnenberger wrote:
} Subject: Re: NetBSD-5 ichlpcib watchdog timer seems to be broken for some 
} On Mon, Jun 29, 2009 at 12:57:53AM -0700, Brian Buhrow wrote:
} >     Hello.  I think so.  But if you mean that the timer is triggering
} > early, before it's tickled, that's possible.  I guess I could try testing
} > that theory by having the wdogctl program tickle  quicker than half the
} > time left on the timer.
} 
} I more suspect that the tickling itself doesn't work, so it is just
} always timing out. I'd like to know what of the different failure cases
} we have first :)
} 
} Joerg
>-- End of excerpt from Joerg Sonnenberger