I just ran this on 4.4.0-34-generic from the dev ppa on an arm64 system
and it passed.  I am re-running this now to see if it reliably passes.

ubuntu@ubuntu:~$ sudo apt-cache policy canonical-certification-server 
  Installed: 0.28+201607151353~ubuntu16.04.1
  Candidate: 0.28+201607151353~ubuntu16.04.1
  Version table:
 *** 0.28+201607151353~ubuntu16.04.1 500
        500 http://ppa.launchpad.net/checkbox-dev/ppa/ubuntu xenial/main arm64 
        100 /var/lib/dpkg/status
ubuntu@ubuntu:~$ uname -a
Linux ubuntu 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:07:06 UTC 2016 
aarch64 aarch64 aarch64 GNU/Linux

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  stress-ng memory testing causes Arm64 system to hang

Status in linux package in Ubuntu:

Bug description:
  Running the certification memory test using stress-ng on an ARM64
  system with 64GB roughly of RAM (MAAS shows 63GB).

  The test runs several stress-ng memory related tests.  It appears that
  the system locks up when the bigheap test runs, every time so far (two
  of two runs have failed).

  I'm doing a third now to confirm that bigheap is where the lockup

  I've also run this exact same test on similar and smaller memory
  amounts on s390x and amd64 without problem.

  This is also being done to provide data for a similar bug discovered
  on Power (ppc64le).

  To test this on an arm64 system:

  Install Xenial
  $ add-apt-repository ppa:hardware-certification/public
  $ apt update
  $ apt install canonical-certification-server
  $ /usr/lib/plainbox-provider-checkbox/bin/memory_stress_ng

  the memory_stress_ng script is a wrapper for stress_ng that only calls
  certain memory tests.  See script for an idea of how it's executing
  the tests.

  This could be the same issue that we're seeing on power, or it could
  be a different issue for ARM that looks similar.  Here's the original
  Power bug:


  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-31-generic 4.4.0-31.50
  ProcVersionSignature: User Name 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic aarch64
   total 0
   crw-rw---- 1 root audio 116,  1 Aug  5 09:27 seq
   crw-rw---- 1 root audio 116, 33 Aug  5 09:27 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: arm64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  Date: Fri Aug  5 16:15:51 2016
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb: Error: command ['lsusb'] failed with exit code 1:
   PATH=(custom, no user)
  ProcKernelCmdLine: console=ttyS0,9600n8r ro
   linux-restricted-modules-4.4.0-31-generic N/A
   linux-backports-modules-4.4.0-31-generic  N/A
   linux-firmware                            1.157.2
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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