Unable to allocate as many hugepages as requested

Solution Verified - Updated -

Issue

  • Why is the number of HugePages not changed after changing value in /etc/sysctl.conf?

  • Attempting to allocate hugepages with sysctl vm.nr_hugepages= results in no change to vm.nr_hugepages or the hugepages shown /proc/meminfo.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5

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