memcontrol04 in ubuntu_ltp_controllers failed on J-azure (Low events in F)

[Po-Hsu Lin]

Issue found on I-azure 5.15.0-1002.3

Test failed with:
  memcontrol04.c:214: TFAIL: Expect: (F low events=419) == 0

  HINT: You _MAY_ be hit by known kernel failures:

  Low events in F: https://bugzilla.suse.com/show_bug.cgi?id=1196298

Test log:
INFO: Test start time: Fri Mar 25 10:03:44 UTC 2022
COMMAND: /opt/ltp/bin/ltp-pan -q -e -S -a 119719 -n 119719 -f /tmp/ltp-mFNzOrxoBY/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.......
tst_device.c:88: TINFO: Found free device 3 '/dev/loop3'
tst_supported_fs_types.c:88: TINFO: Kernel supports ext2
tst_supported_fs_types.c:50: TINFO: mkfs.ext2 does exist
tst_supported_fs_types.c:88: TINFO: Kernel supports ext3
tst_supported_fs_types.c:50: TINFO: mkfs.ext3 does exist
tst_supported_fs_types.c:88: TINFO: Kernel supports ext4
tst_supported_fs_types.c:50: TINFO: mkfs.ext4 does exist
tst_supported_fs_types.c:88: TINFO: Kernel supports xfs
tst_supported_fs_types.c:50: TINFO: mkfs.xfs does exist
tst_supported_fs_types.c:88: TINFO: Kernel supports btrfs
tst_supported_fs_types.c:50: TINFO: mkfs.btrfs does exist
tst_supported_fs_types.c:155: TINFO: Skipping vfat as requested by the test
tst_supported_fs_types.c:155: TINFO: Skipping exfat as requested by the test
tst_supported_fs_types.c:155: TINFO: Skipping tmpfs as requested by the test
tst_test.c:1528: TINFO: Testing on ext2
tst_test.c:996: TINFO: Formatting /dev/loop3 with ext2 opts='' extra opts=''
mke2fs 1.46.5 (30-Dec-2021)
tst_test.c:1456: TINFO: Timeout per run is 0h 05m 00s
memcontrol04.c:118: TINFO: Child 119783 in leaf_C: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119785 in leaf_D: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119786 in leaf_F: Allocating pagecache: 52428800
memcontrol04.c:99: TINFO: Child 119787 in trunk_G: Allocating anon: 155189248
memcontrol04.c:170: TPASS: Expect: (A/B memory.current=54177792) ~= 52428800
memcontrol04.c:176: TPASS: Expect: (A/B/C memory.current=30691328) ~= 34603008
memcontrol04.c:178: TPASS: Expect: (A/B/D memory.current=22523904) ~= 17825792
memcontrol04.c:180: TPASS: Expect: (A/B/E memory.current=0) ~= 0
memcontrol04.c:182: TINFO: A/B/F memory.current=950272
memcontrol04.c:99: TINFO: Child 119788 in trunk_G: Allocating anon: 174063616
memcontrol04.c:195: TINFO: A: low events=1645, oom events=0
memcontrol04.c:195: TINFO: B: low events=1645, oom events=0
memcontrol04.c:195: TINFO: G: low events=0, oom events=0
memcontrol04.c:208: TPASS: Expect: (C oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (C low events=413) > 0
memcontrol04.c:208: TPASS: Expect: (D oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (D low events=413) > 0
memcontrol04.c:208: TPASS: Expect: (E oom events=0) == 0
memcontrol04.c:214: TPASS: Expect: (E low events=0) == 0
memcontrol04.c:208: TPASS: Expect: (F oom events=0) == 0
memcontrol04.c:214: TFAIL: Expect: (F low events=410) == 0
tst_test.c:1528: TINFO: Testing on ext3
tst_test.c:996: TINFO: Formatting /dev/loop3 with ext3 opts='' extra opts=''
mke2fs 1.46.5 (30-Dec-2021)
tst_test.c:1456: TINFO: Timeout per run is 0h 05m 00s
memcontrol04.c:118: TINFO: Child 119798 in leaf_C: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119800 in leaf_D: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119801 in leaf_F: Allocating pagecache: 52428800
memcontrol04.c:99: TINFO: Child 119802 in trunk_G: Allocating anon: 155189248
memcontrol04.c:170: TPASS: Expect: (A/B memory.current=54173696) ~= 52428800
memcontrol04.c:176: TPASS: Expect: (A/B/C memory.current=30658560) ~= 34603008
memcontrol04.c:178: TPASS: Expect: (A/B/D memory.current=22560768) ~= 17825792
memcontrol04.c:180: TPASS: Expect: (A/B/E memory.current=0) ~= 0
memcontrol04.c:182: TINFO: A/B/F memory.current=942080
memcontrol04.c:99: TINFO: Child 119803 in trunk_G: Allocating anon: 174063616
memcontrol04.c:195: TINFO: A: low events=1617, oom events=0
memcontrol04.c:195: TINFO: B: low events=1617, oom events=0
memcontrol04.c:195: TINFO: G: low events=0, oom events=0
memcontrol04.c:208: TPASS: Expect: (C oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (C low events=406) > 0
memcontrol04.c:208: TPASS: Expect: (D oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (D low events=406) > 0
memcontrol04.c:208: TPASS: Expect: (E oom events=0) == 0
memcontrol04.c:214: TPASS: Expect: (E low events=0) == 0
memcontrol04.c:208: TPASS: Expect: (F oom events=0) == 0
memcontrol04.c:214: TFAIL: Expect: (F low events=403) == 0
tst_test.c:1528: TINFO: Testing on ext4
tst_test.c:996: TINFO: Formatting /dev/loop3 with ext4 opts='' extra opts=''
mke2fs 1.46.5 (30-Dec-2021)
tst_test.c:1456: TINFO: Timeout per run is 0h 05m 00s
memcontrol04.c:118: TINFO: Child 119814 in leaf_C: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119815 in leaf_D: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119816 in leaf_F: Allocating pagecache: 52428800
memcontrol04.c:99: TINFO: Child 119817 in trunk_G: Allocating anon: 155189248
memcontrol04.c:170: TPASS: Expect: (A/B memory.current=54079488) ~= 52428800
memcontrol04.c:176: TPASS: Expect: (A/B/C memory.current=30711808) ~= 34603008
memcontrol04.c:178: TPASS: Expect: (A/B/D memory.current=22614016) ~= 17825792
memcontrol04.c:180: TPASS: Expect: (A/B/E memory.current=0) ~= 0
memcontrol04.c:182: TINFO: A/B/F memory.current=741376
memcontrol04.c:99: TINFO: Child 119818 in trunk_G: Allocating anon: 174063616
memcontrol04.c:195: TINFO: A: low events=1613, oom events=0
memcontrol04.c:195: TINFO: B: low events=1613, oom events=0
memcontrol04.c:195: TINFO: G: low events=0, oom events=0
memcontrol04.c:208: TPASS: Expect: (C oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (C low events=405) > 0
memcontrol04.c:208: TPASS: Expect: (D oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (D low events=405) > 0
memcontrol04.c:208: TPASS: Expect: (E oom events=0) == 0
memcontrol04.c:214: TPASS: Expect: (E low events=0) == 0
memcontrol04.c:208: TPASS: Expect: (F oom events=0) == 0
memcontrol04.c:214: TFAIL: Expect: (F low events=402) == 0
tst_test.c:1528: TINFO: Testing on xfs
tst_test.c:996: TINFO: Formatting /dev/loop3 with xfs opts='' extra opts=''
tst_test.c:1456: TINFO: Timeout per run is 0h 05m 00s
memcontrol04.c:118: TINFO: Child 119834 in leaf_C: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119842 in leaf_D: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119843 in leaf_F: Allocating pagecache: 52428800
memcontrol04.c:99: TINFO: Child 119844 in trunk_G: Allocating anon: 155189248
memcontrol04.c:170: TPASS: Expect: (A/B memory.current=54173696) ~= 52428800
memcontrol04.c:176: TPASS: Expect: (A/B/C memory.current=30654464) ~= 34603008
memcontrol04.c:178: TPASS: Expect: (A/B/D memory.current=22720512) ~= 17825792
memcontrol04.c:180: TPASS: Expect: (A/B/E memory.current=0) ~= 0
memcontrol04.c:182: TINFO: A/B/F memory.current=786432
memcontrol04.c:99: TINFO: Child 119845 in trunk_G: Allocating anon: 174063616
memcontrol04.c:195: TINFO: A: low events=1681, oom events=0
memcontrol04.c:195: TINFO: B: low events=1681, oom events=0
memcontrol04.c:195: TINFO: G: low events=0, oom events=0
memcontrol04.c:208: TPASS: Expect: (C oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (C low events=422) > 0
memcontrol04.c:208: TPASS: Expect: (D oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (D low events=422) > 0
memcontrol04.c:208: TPASS: Expect: (E oom events=0) == 0
memcontrol04.c:214: TPASS: Expect: (E low events=0) == 0
memcontrol04.c:208: TPASS: Expect: (F oom events=0) == 0
memcontrol04.c:214: TFAIL: Expect: (F low events=419) == 0
tst_test.c:1528: TINFO: Testing on btrfs
tst_test.c:996: TINFO: Formatting /dev/loop3 with btrfs opts='' extra opts=''
tst_test.c:1456: TINFO: Timeout per run is 0h 05m 00s
memcontrol04.c:118: TINFO: Child 119873 in leaf_C: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119875 in leaf_D: Allocating pagecache: 52428800
memcontrol04.c:118: TINFO: Child 119876 in leaf_F: Allocating pagecache: 52428800
memcontrol04.c:99: TINFO: Child 119877 in trunk_G: Allocating anon: 155189248
memcontrol04.c:170: TPASS: Expect: (A/B memory.current=54173696) ~= 52428800
memcontrol04.c:176: TPASS: Expect: (A/B/C memory.current=30654464) ~= 34603008
memcontrol04.c:178: TPASS: Expect: (A/B/D memory.current=22720512) ~= 17825792
memcontrol04.c:180: TPASS: Expect: (A/B/E memory.current=0) ~= 0
memcontrol04.c:182: TINFO: A/B/F memory.current=786432
memcontrol04.c:99: TINFO: Child 119878 in trunk_G: Allocating anon: 174063616
memcontrol04.c:195: TINFO: A: low events=1681, oom events=0
memcontrol04.c:195: TINFO: B: low events=1681, oom events=0
memcontrol04.c:195: TINFO: G: low events=0, oom events=0
memcontrol04.c:208: TPASS: Expect: (C oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (C low events=422) > 0
memcontrol04.c:208: TPASS: Expect: (D oom events=0) == 0
memcontrol04.c:211: TPASS: Expect: (D low events=422) > 0
memcontrol04.c:208: TPASS: Expect: (E oom events=0) == 0
memcontrol04.c:214: TPASS: Expect: (E low events=0) == 0
memcontrol04.c:208: TPASS: Expect: (F oom events=0) == 0
memcontrol04.c:214: TFAIL: Expect: (F low events=419) == 0

HINT: You _MAY_ be hit by known kernel failures:

Low events in F: https://bugzilla.suse.com/show_bug.cgi?id=1196298

Summary:
passed 55
failed 5
broken 0
skipped 0
warnings 0
INFO: ltp-pan reported some tests FAIL
LTP Version: 20220121
INFO: Test end time: Fri Mar 25 10:04:04 UTC 2022

This is a new test added recently:
https://github.com/linux-test-project/ltp/commit/f68379f901e174aff8466d03f59d6d178da305a5

And being tested in the tip-testing branch on our local fork (testing on Azure only, for evaluation purpose).

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1966417

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Po-Hsu Lin (cypressyew)]

Found with J-OEM 5.17.0-1004.4 with node wildcat