Yes, this does look like an OOM condition. Does this happen now that
linux-azure has moved to to the 4.15 kernel?

** Changed in: linux-azure (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1765302

Title:
  ubuntu_qrt_apparmor test will fail on Azure 4.13 Standard-A0

Status in QA Regression Testing:
  New
Status in ubuntu-kernel-tests:
  New
Status in linux-azure package in Ubuntu:
  Incomplete

Bug description:
  The test_regression_testsuite in ubuntu_qrt_apparmor test constantly
  fails on Azure 4.13 Standard-A0 node (passed on the other nodes).

  Run parser regression tests ... (Applying patch 
r3446-fix-sysctl-syscall-detection.patch) (Applying patch 
tests-readdir-lp1674245.patch) (Applying patch tests-max_path-lp1692543.patch) 
(Applying patch r3701-tests-pivot_root.patch) (Applying patch 
r3702-tests-query_label.patch) ok
  test_regression_testsuite (__main__.ApparmorTestsuites)
    preparing apparmor_2.10.95-0ubuntu2.9.dsc...  done
   ERROR        ubuntu_qrt_apparmor.test-apparmor.py    
ubuntu_qrt_apparmor.test-apparmor.py    timestamp=1524115809    localtime=Apr 
19 05:30:09       Test subprocess failed rc=9
   END ERROR    ubuntu_qrt_apparmor.test-apparmor.py    
ubuntu_qrt_apparmor.test-apparmor.py    timestamp=1524115826    localtime=Apr 
19 05:30:26
  Persistent state client._record_indent now set to 1
  Persistent state client.unexpected_reboot deleted
  END GOOD      ----    ----    timestamp=1524115851    localtime=Apr 19 
05:30:51

  Not sure if it's because of insufficient memory:
  $ free -m
                total        used        free      shared  buff/cache   
available
  Mem:            647         251          59           2         336         
225
  Swap:             0           0           0

  If you execute the "ubuntu-bug linux" command after this test, it will 
trigger an OOM event on it.
  Please find the dmesg output here: http://paste.ubuntu.com/p/dH7mf5Vnzs/

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.13.0-1012-azure 4.13.0-1012.15
  ProcVersionSignature: User Name 4.13.0-1012.15-username 4.13.13
  Uname: Linux 4.13.0-1012-azure x86_64
  ApportVersion: 2.20.1-0ubuntu2.16
  Architecture: amd64
  Date: Thu Apr 19 06:27:08 2018
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-azure
  UpgradeStatus: No upgrade log present (probably fresh install)

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