What does "HugePagesRsvd" mean shown in /proc/meminfo output?

Solution Verified - Updated -

Issue

  • What does "HugePagesRsvd" mean shown in /proc/meminfo output?
  • From the /proc/meminfo output below what does the value under HugePagesRsvd mean? :
HugePagesTotal: 49200
HugePagesFree: 30897
HugePagesRsvd: 30850
HugePagesSurp: 0

Environment

  • Red Hat Enterprise Linux 5.7 and above
  • Red Hat Enterprise Linux 6

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