Description of problem:
Both regards hit the straight ENTER to the answers. Might we could repeat the answer for those.

What group should have access to the huge pages? (The group will be created, if need be):  <ENTER>
Traceback (most recent call last):
  File "/usr/bin/huge_page_setup_helper.py", line 139, in <module>
    if userGroupReq[0].isdigit() or userGroupReq[0] == "-":
IndexError: string index out of range

What user(s) should have access to the huge pages (space-delimited list, users created as needed)? <ENTER>

Saved original /etc/sysctl.conf as /etc/sysctl.conf.backup
Saved original /etc/security/limits.d/hugepages.conf as /etc/security/limits.d/hugepages.conf.backup

Final configuration:
 * Total System Memory......:    879 MB
 * Shared Mem Max Mapping...:    200 MB
 * System Huge Page Size....:      2 MB
 * Available Huge Pages.....:    100
 * Total size of Huge Pages.:    200 MB
 * Remaining System Memory..:    679 MB
 * Huge Page User Group.....:  huge (502)

In fact, /etc/security/limits.d/hugepages.conf did not change,
# cat /etc/security/limits.d/hugepages.conf
root		soft	memlock		2048
root		hard	memlock		2048
caiqian		soft	memlock		2048
caiqian		hard	memlock		2048

Version-Release number of selected component (if applicable):
libhugetlbfs-2.8-2.el6