One of my machines shows the following message at boot time:

Intel 82371AB Power Management Controller (PIIX4) (miscellaneous bridge, revision 0x01) at pci0 dev 7 function 3 not configured

I *assume* that that's the device that permits things like 'halt -p' to 
actually power down the machine.  Is there any support for it?  I'm 
currently running 1.6 on it; I may upgrade to -current.  I have 'apm' 
included in my configuration, to no avail.  I haven't yet tried using 
acpi.

		--Steve Bellovin, http://www.research.att.com/~smb (me)
		http://www.wilyhacker.com ("Firewalls" book)