MFC rp.c rev 1.73
MFC rp.c rev 1.73

  Fix Rocketport so that it does not crash the system when a device pointer
  changes for example:

  (From Craig Leres):

  tip to a rocketport line
  run "/etc/rc.d/devfs restart"
  exit tip
  (wait for the system to reboot)

  Thanks to Robert Watson for poking me to fix this.

  PR:		kern/109152
  Approved by:	imp (mentor)
  Approved by:	re (kensmith)
  Reviewed by:	jhb
  Submitted by:	Craig Leres <leres@ee dot lbl dot gov>

Approved by:	imp (mentor, implicit)

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