Problem w/ ACPI in -CURRENT

[Nate Lawson]

>When booting FreeBSD normally or in single-user mode, these are the last
>messages displayed:
>----
>Timecounter "TSC" frequency 498470127 Hz quality 800
>Timecounters tick every 10.000 msec
>^^^ hangs after that
>----
>
>When booting FreeBSD with ACPI turned off or in "Safe Mode", the computer
>boots normally.

Enable options DDB.  When it hangs, press CTRL-ALT-ESC and then "tr" to
get a traceback.

While ACPI influences this problem, I am uncertain it is the root cause.

-Nate