How about setting low to the warning level, and high to the shutdown level? That way you should be able to handle all 3 states w/o timers. "below" being normal, "within" where it notifies and steps down CPU and "above" where it does shutdown.
2012/6/19 Robert Connolly <robertconnolly1...@gmail.com> > I want to initiate a shutdown if the temperature gets too high. I have been > using sensorsd(8), but sensorsd(8) only reacts once to the "high" (or low) > event, leaving it up to the program/script to run timers to keep checking > if the temperature gets worse. For my satisfaction, the timers would have > to keep running until the system cooled down below the "high" temperature, > so that sensorsd(8) will pick up the monitoring from there. > > When the temperature gets to a warning level, I would like sensorsd(8) to > notify logged in users (me), mail root, step down the CPU with apm -L, and > then let the kernel do a shutdown, with acpitz(4), if the temperature > continues to rise to critical. This would be easier and more simple for me > than using sensorsd(8) alone (no timers). > > I checked this out a little bit today. Some laptop manufacturers release > Windows programs to control these temperature settings. I don't know if the > setting is permanent/saved in BIOS, but if it is then I could run it from a > Windows Livecd to reset the critical temperature. Another idea was > installing Coreboot (free-bios), but I doubt my mainboard is supported, and > it could brick my system. Or, configure the OpenBSD kernel to ignore the > BIOS setting, and use my hard coded temperature instead. Or, use > sensorsd(8) and a script. > > On Mon, Jun 18, 2012 at 9:35 AM, Mike Larkin <mlar...@azathoth.net> wrote: > > > On Mon, Jun 18, 2012 at 06:35:58AM -0700, Robert Connolly wrote: > > > Hello. > > > > > > During boot I see: > > > acpitz0 at acpi0: critical temperature is 200 degC > > > > > > The acpitz(4) man page mentions that the system will power down if this > > > critical temperature is reached. I assume this temperature is retrieved > > > from BIOS, but I do not have an option in BIOS setup for it. > > > > > > Can I hard code this temperature in sys/dev/acpi/acpitz.c to a saner > > > number? If so, it looks like I need to define sc->sc_crt, or possibly > > _CRT. > > > > > > Or is there another way to do this? > > > > > > Thanks > > > > > > > Why do you want to do this? > > > > -ml
