chunk-overcommit test in libhugetlbfs test suite will fail on Trusty ARM64

Steps:
1. Deploy an ARM64 system with Trusty
2. Install necessary packages
3. git clone --depth=1 -b next https://github.com/libhugetlbfs/libhugetlbfs.git
4. make BUILDTYPE=NATIVEONLY
5. execute the run_test.py in tests directory

Result:
* The chunk-overcommit test case will fail

chunk-overcommit (2M: 64): Starting testcase "chunk-overcommit", pid 17370
overcommit: 31935 hugepages available: chunk1=15968 chunk2=15968
Looks like we've overcommitted, testing...
FAIL Killed by signal "Bus error" due to overcommit

Error message could be found in syslog:
AutotestCrashHandler: Application chunk-overcommi, PID 2269 crashed
AutotestCrashHandler: Writing core files to ['/home/ubuntu/autotest/client/results/default/libhugetlbfs/debug/crash.chunk-overcommi.2269']
AutotestCrashHandler: Could not determine from which application core file /home/ubuntu/autotest/client/results/default/libhugetlbfs/debug/crash.chunk-overcommi.2269/core is from

Please find the attachement for the core file.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-141-generic 3.13.0-141.190
ProcVersionSignature: User Name 3.13.0-141.190-generic 3.13.11-ckt39
Uname: Linux 3.13.0-141-generic aarch64
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.14.1-0ubuntu3.27
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Wed Feb 7 04:14:16 2018
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:

ProcKernelCmdLine: console=ttyS0,9600n8r ro
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-141-generic N/A
 linux-backports-modules-3.13.0-141-generic N/A
 linux-firmware 1.127.24
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)