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[Jürg Häfliger <1747828@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1747828

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

Status in ubuntu-kernel-tests:
  Triaged
Status in linux package in Ubuntu:
  Triaged

Bug description:
  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)

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