memcg_limit_in_bytes from controllers in ubuntu_ltp failed on bionic ppc64el

[Kelsey Steele]

memcg_limit_in_bytes from controllers in ubuntu_ltp failed on bionic 4.15.0-141.145 ppc64el host entei and baltar.

this is not a regression as it previously failed on bionic 4.15.0-139.143 on these same hosts.

03/26 01:01:04 DEBUG| utils:0153| [stdout] startup='Fri Mar 26 00:11:16 2021'
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 1 TINFO: timeout per run is 0h 5m 0s
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 1 TINFO: set /dev/memcg/memory.use_hierarchy to 0 failed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 1 TINFO: Setting shmmax
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 1 TINFO: Test mmap(locked) + alloc_mem > limit_in_bytes
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 1 TINFO: Running memcg_process --mmap-lock1 -s 131072
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 1 TPASS: process 21863 is killed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 2 TINFO: Running memcg_process --mmap-lock2 -s 131072
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 2 TPASS: Failed to lock memory
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 3 TINFO: Test swapoff + alloc_mem > limit_in_bytes
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 3 TINFO: Running memcg_process --mmap-anon -s 131072
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 3 TPASS: process 21898 is killed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 4 TINFO: Running memcg_process --mmap-file -s 131072
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 4 TPASS: process 21918 is killed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 5 TINFO: Running memcg_process --shm -k 18 -s 131072
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 5 TPASS: process 21937 is killed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 6 TINFO: Test limit_in_bytes == 0
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 6 TINFO: Running memcg_process --mmap-anon -s 65536
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 6 TPASS: process 21954 is killed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 7 TINFO: Running memcg_process --mmap-file -s 65536
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 7 TPASS: process 21970 is killed
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 8 TINFO: Running memcg_process --shm -k 21 -s 65536
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_process: shmat() failed: Cannot allocate memory
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 8 TFAIL: process 21987 is killed by error
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 9 TINFO: Test limit_in_bytes will be aligned to PAGESIZE
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 9 TPASS: input=65535, limit_in_bytes=0
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 10 TPASS: input=65537, limit_in_bytes=65536
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 11 TPASS: input=1, limit_in_bytes=0
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 12 TINFO: Test invalid memory.limit_in_bytes
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 12 TPASS: echo -1 > memory.limit_in_bytes passed as expected
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 13 TPASS: echo 1.0 > memory.limit_in_bytes failed as expected
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 14 TPASS: echo 1xx > memory.limit_in_bytes failed as expected
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 15 TPASS: echo xx > memory.limit_in_bytes failed as expected
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 16 TINFO: AppArmor enabled, this may affect test results
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 16 TINFO: it can be disabled with TST_DISABLE_APPARMOR=1 (requires super/root)
03/26 01:01:04 DEBUG| utils:0153| [stdout] memcg_limit_in_bytes 16 TINFO: loaded AppArmor profiles: none
03/26 01:01:04 DEBUG| utils:0153| [stdout]
03/26 01:01:04 DEBUG| utils:0153| [stdout] Summary:
03/26 01:01:04 DEBUG| utils:0153| [stdout] passed 14
03/26 01:01:04 DEBUG| utils:0153| [stdout] failed 1
03/26 01:01:04 DEBUG| utils:0153| [stdout] skipped 0
03/26 01:01:04 DEBUG| utils:0153| [stdout] warnings 0
03/26 01:01:04 DEBUG| utils:0153| [stdout] tag=memcg_limit_in_bytes stime=1616717476 dur=3 exit=exited stat=1 core=no cu=14 cs=94