[Bug 268393] system always reboots once from a powered off state

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268393

--- Comment #29 from John Grafton <john.grafton@runbox.com> ---
(In reply to Jonathan Vasquez from comment #28)
Yes, compile using the GENERIC kernel config, it includes the witness debugger.
 Then boot from the kernel as normal and see if the system still crashes.

There *may* be a race within the driver which only crashes given specific
parameters.  From the data you've already provided, it appears an interrupt
handler is called before memory is initialized for it.  Hopefully, locking the
initialization functions will give us a clue to what's going on in your system.

Intermittent bugs are the most annoying to debug because they can sometimes be
difficult to replicate.  We just have to keep poking at it to see if we can
find a solution.  :)

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