John Baldwin 8d9888d37a Don't wait forever for CPUs to stop or restart. Instead, give up after a
timeout.  If DIAGNOSTIC is turned on, then display a message to the console
with a map of which CPUs failed to stop or restart.  This gives an SMP box
at least a fighting chance of getting into DDB if one of the other CPUs has
interrupts disabled.
2000-11-28 23:52:36 +00:00
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