Date: Thu, 31 Jul 2008 20:57:44 -0700 (PDT) From: Won De Erick <won.derick@yahoo.com> To: freebsd-hardware@freebsd.org Subject: How to reset the OS Watchdog timer in IBM x343? Message-ID: <30555.48676.qm@web45811.mail.sp1.yahoo.com>
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Hello,
I have been searching the internet as to how to enable the OS watchdog timer mechanism in IBM x343.
I tried setting the watchdog timer at the BIOS utility, and what I wanted to know is how to reset the timer so as not to reboot the system during normal operation. The box is run by FreeBSD 6.2,
and I can't just use the IBM director and/or the IBM director client as
basically, it won't run on the said OS. Adding out-band management card
will also not help as basically the box doesn't support such.
I've
learned that the built-in service processor can be accessed using the
SMbus driver, but said driver is only for Windows/Linux. However, there
should be a way how to access/control the watchdog timer either by using a BIOS interrupt call or a service. I need to send a heartbeat to the watchdog to continuously reset the timer.
Thanks and best regards,
Won
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