Comment 4 for bug 1845919

The same issue seems to be happening with memcg_move_charge_at_immigrat on hirsute/linux 5.11.

tag=memcg_max_usage_in_bytes stime=1626909193 dur=5 exit=exited stat=0 core

startup='Wed Jul 21 23:13:18 2021'
memcg_move_charge_at_immigrate_test 1 TINFO: timeout per run is 0h 5m 0s
[...]
memcg_move_charge_at_immigrate_test 3 TINFO: Test move file
memcg_move_charge_at_immigrate_test 3 TINFO: Running memcg_process --mmap-anon --shm --mmap-file -s 135168
memcg_move_charge_at_immigrate_test 3 TINFO: Warming up pid: 762538
memcg_move_charge_at_immigrate_test 3 TINFO: Process is still here after warm up: 762538
memcg_move_charge_at_immigrate_test 3 TBROK: timed out on memory.usage_in_bytes
memcg_move_charge_at_immigrate_test 3 TINFO: AppArmor enabled, this may affect test results
memcg_move_charge_at_immigrate_test 3 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
memcg_move_charge_at_immigrate_test 3 TINFO: loaded AppArmor profiles: none