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[Po-Hsu Lin <1939035@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1942426 ***
    https://bugs.launchpad.net/bugs/1942426

** This bug has been marked a duplicate of bug 1942426
   memcg_subgroup_charge from controllers in ubuntu_ltp fails with "timed out on memory.usage_in_byte"

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https://bugs.launchpad.net/bugs/1939035

Title:
  memory.usage_in_bytes from
  ubuntu_ltp.controllers.memcg_subgroup_charge times out in Hirsute 5.11

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Hirsute:
  Won't Fix

Bug description:
  memory.usage_in_bytes from
  ubuntu_ltp.controllers.memcg_subgroup_charge times out when running
  with hirsute/linux 5.11.

  startup='Mon Jul 19 15:17:41 2021'
  memcg_subgroup_charge 1 TINFO: timeout per run is 0h 5m 0s
  memcg_subgroup_charge 1 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
  memcg_subgroup_charge 1 TINFO: Test that group and subgroup have no relationship
  memcg_subgroup_charge 1 TINFO: Running memcg_process --mmap-anon -s 270336
  memcg_subgroup_charge 1 TINFO: Warming up pid: 443417
  memcg_subgroup_charge 1 TINFO: Process is still here after warm up: 443417
  memcg_subgroup_charge 1 TBROK: timed out on memory.usage_in_bytes
  memcg_subgroup_charge 1 TINFO: AppArmor enabled, this may affect test results
  memcg_subgroup_charge 1 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
  memcg_subgroup_charge 1 TINFO: loaded AppArmor profiles: none
   
  Summary:
  passed   0
  failed   0
  broken   1
  skipped  0
  warnings 0
  tag=memcg_subgroup_charge stime=1626707861 dur=11 exit=exited stat=2 core=no cu=19 cs=12

  
  This is not a regression as it already failed on previous releases.

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