Possible ACPI shutdown/power off issue

[Nate Lawson]

Steve wrote:
> I'm using 6.2-R on a Dell PowerEdge 400SC.
> 
> I recently enabled "Remote Wake Up" (Wake on LAN) in BIOS.  Sending a
> magic packet to the powered down PC will power it up and it boots
> normally.  However, now if I attempt a shutdown and power off using
> commands "halt -p" or "shutdown -p now" I get a reboot.  Disabling WOL
> reverts back to the expected behavior.
> 
> I've searched and found the sysctl knob "hw.acpi.disable_on_poweroff"
> as a possible solution, but sysctl gives me "unknown oid".
> 
> I'm guessing this issue is related to ACPI.  I'm puzzled why enabling
> WOL would have this impact.  Any ideas on how to fix or troubleshoot
> this?  Thank you.

sysctl -a shows:
hw.acpi.disable_on_reboot: 0
hw.acpi.handle_reboot: 0

The former is probably the one you want.  The latter tells it to use the
Reset Register to reboot the system.  That might help also.

-- 
Nate