> Watchdog resets are caused by taking a trap when traps are disabled.
> 
> This particular fault is a level 15 interrupt.  I think the only
> cause of level 15 interrupts are asynchronous memory errors.
> Since traps should only be disabled inside trap handlers, you
> are probably suffering from bad RAM.

A level 15 interrupt is also sent to all modules if one them resets,
whatever the reason.

With some luck, you might still get a stack trace of the reset CPU
by doing

	ok <n> switch-cpu
	ok ctrace

from the prom.

-pk