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[Po-Hsu Lin <1983659@xxxxxxxxxxxxxxxxxx>]

For memcg_control please refer to bug 2028776

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https://bugs.launchpad.net/bugs/1983659

Title:
  cgroup / memcg_control from ubuntu_ltp_controllers failed on F (TBROK:
  'tst_cgctl require' exited)

Status in ubuntu-kernel-tests:
  New

Bug description:
  With LTP update (bug 1982995) to commit ac1a3e40c5 "controllers:
  update cgroup_regression_test to use newer cgroup lib"

  cgroup test:
  INFO: Test start time: Wed Aug  3 13:52:37 UTC 2022
  COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 56575     -n 56575  -f /tmp/ltp-cPjidZlr9W/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.......
  cgroup_regression_test 1 TINFO: timeout per run is 0h 5m 0s
  cgroup_regression_test 1 TPASS: no kernel bug was found
  cgroup_regression_test 2 TPASS: notify_on_release is inherited
  cgroup_regression_test 3 TPASS: no kernel bug was found
  cgroup_regression_test 4 TCONF: CONFIG_LOCKDEP is not enabled
  cgroup_regression_test 5 TINFO: The '/tmp/ltp-cPjidZlr9W/LTP_cgroup_regression_test.vvkEkXC0vR/cgroup' is not mounted, skipping umount
  cgroup_regression_test 5 TPASS: no kernel bug was found
  cgroup_regression_test 6 TCONF: CONFIG_CGROUP_NS is NOT supported in Kernels >= 3.0
  tst_cgroup.c:819: TBROK: 'rdma' controller is unknown to LTP
  cgroup_regression_test 7 TBROK: 'tst_cgctl require' exited
  cgroup_regression_test 7 TINFO: AppArmor enabled, this may affect test results
  cgroup_regression_test 7 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
  cgroup_regression_test 7 TINFO: loaded AppArmor profiles: none

  Summary:
  passed   4
  failed   0
  broken   1
  skipped  2
  warnings 0
  INFO: ltp-pan reported some tests FAIL
  LTP Version: 20220527
  INFO: Test end time: Wed Aug  3 13:53:38 UTC 2022

  memcg_control:
  INFO: Test start time: Wed Aug  3 14:25:17 UTC 2022
  COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 104816     -n 104816  -f /tmp/ltp-3EW278bbe8/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.......
  memcg_control_test 1 TINFO: timeout per run is 0h 5m 0s
  memcg_control_test 1 TINFO: Test starts with cgroup version 1
  memcg_control_test 1 TINFO: Test #1: Checking if the memory usage limit imposed by the topmost group is enforced
  tst_rod: Failed to open '/sys/fs/cgroup/memory/ltp/test-104860/memory.memsw.limit_in_bytes' for writing: Permission denied
  memcg_control_test 1 TBROK: echo 4096 > /sys/fs/cgroup/memory/ltp/test-104860/memory.memsw.limit_in_bytes failed
  memcg_control_test 1 TINFO: AppArmor enabled, this may affect test results
  memcg_control_test 1 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
  memcg_control_test 1 TINFO: loaded AppArmor profiles: none

  Summary:
  passed   0
  failed   0
  broken   1
  skipped  0
  warnings 0
  INFO: ltp-pan reported some tests FAIL
  LTP Version: 20220527
  INFO: Test end time: Wed Aug  3 14:25:17 UTC 2022

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