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[Joseph Salisbury <1955529@xxxxxxxxxxxxxxxxxx>]

Seen on b/aws-5.4 for 5.4.0-1109

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https://bugs.launchpad.net/bugs/1955529

Title:
  cpuset_memory_pressure in ubuntu_ltp_controllers failed on B-oracle
  BM.Standard2.52 (root group's memory_pressure didn't have memory
  pressure rate.)

Status in ubuntu-kernel-tests:
  New

Bug description:
  Issue found on Oracle instance BM.Standard2.52 only with kernel
  4.15.0-1085.93

  This failure can be found in 4.15.0-1084.92 / 4.15.0-1083.91 as well,
  thus it's not a regression.

  Test failed with:
  cpuset_memory_pressure 11 TFAIL: root group's memory_pressure didn't have memory pressure rate.

  Test log:
  Checking for required user/group ids

  'nobody' user id and group found.
  'bin' user id and group found.
  'daemon' user id and group found.
  Users group found.
  Sys group found.
  Required users/groups exist.
  no big block device was specified on commandline.
  Tests which require a big block device are disabled.
  You can specify it with option -z
  INFO: Test start time: Tue Dec 21 15:07:18 UTC 2021
  COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 57071     -n 57071  -f /tmp/ltp-9znr7PBmp3/alltests -l /dev/null  -C /dev/null -T /dev/null
  LOG File: /dev/null
  FAILED COMMAND File: /dev/null
  TCONF COMMAND File: /dev/null
  Running tests.......
  cpuset_memory_pressure 1 TINFO: CPUs are numbered continuously starting at 0 (0-103)
  cpuset_memory_pressure 1 TINFO: Nodes are numbered continuously starting at 0 (0-1)
  cpuset_memory_pressure 1 TPASS: Cpuset memory pressure test succeeded.
  cpuset_memory_pressure 3 TPASS: Cpuset memory pressure test succeeded.
  cpuset_memory_pressure 5 TPASS: Cpuset memory pressure test succeeded.
  Killed
  cpuset_memory_pressure 7 TPASS: Cpuset memory pressure test succeeded.
  cpuset_memory_pressure 9 TFAIL: root group's memory_pressure didn't have memory pressure rate.
  Killed
  cpuset_memory_pressure 11 TFAIL: root group's memory_pressure didn't have memory pressure rate.
  INFO: ltp-pan reported some tests FAIL
  LTP Version: 20210927
  INFO: Test end time: Tue Dec 21 15:48:45 UTC 2021

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