VMS Help  —  RMU72  RMU_ERRORS, ABMBITERR
  inconsistency between spam page <num>  and  bit  <num>  in  area
  bitmap in larea <num> page <num>

  Explanation:  An ABM (Area Bit Map) page may have a bit set  for
  a  SPAM (Space Management) page that does not manage the logical
  area described by that ABM, or the ABM page should  have  a  bit
  set but does not.

  User Action:  Use RMU REPAIR to rebuild the ABM pages.
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