Nate Lawson d1b16e1864 Add a new sysctl, hw.acpi.handle_reboot. If set, acpi will attempt to
perform the reboot action via the reset register instead of our legacy
method.  Default is 0 (use legacy).  This is needed because some systems
hang on reboot even though they claim to support the reset register.

MFC after:	2 days
2006-07-29 21:46:16 +00:00
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