  Cause(s) of interrupt stack activity? 
 The Question is:
 
Oh wizzard, in a world where OpenVMS is the Ultimate high end Operating System,
 why does my turbolaser's primary CPU become 100% consumed with interrupt stack
 time when processing I/O on Fibre Channel (KGPSA) connected disk drives?
 
 The Answer is:
 
  Well, because something is causing the interrupt stack activity.
 
  Please contact the Compaq Customer Support Center, as rather more
  detail on the environment and the activity will be required.
 
