Issue encountered in cgroup_core02 and cgroup during controllers testing

[Jiaweiiiiii]

(1) cgroup_core02
mnt_dir:/mnt/tmp/ltp-ybN32ZSnlG/cgroup_unified
cgroup_root_scan: const_ctrl:205008
cgroup_root_scan: buf:cpuset
cgroup_root_scan: const_ctrl:204988
cgroup_root_scan: buf:cpuset
cgroup_root_scan: const_ctrl:205028
cgroup_root_scan: buf:cpuset
cgroup_root_scan: const_ctrl:204968
cgroup_root_scan: buf:cpuset
cgroup_root_scan: const_ctrl:205068
cgroup_root_scan: buf:cpuset
cgroup_root_scan: ctrl_field:94, root->ctrl_field:0
cgroup_core02.c:82: TFAIL: test_lesser_ns_open failed, ret:1
(2) cgroup
cmdline="cgroup_regression_test.sh"
cgroup_regression_test 1 TINFO: timeout per run is 8h 20m 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 TCONF: CONFIG_SCHED_DEBUG is not enabled
cgroup_regression_test 4 TCONF: CONFIG_LOCKDEP is not enabled
mkdir: cannot create directory 'cgroup/0': File exists
cgroup_regression_test 5 TPASS: no kernel bug was found
cgroup_regression_test 6 TPASS: no kernel bug was found
tst_cgroup.c:686: TINFO: Mounted V2 CGroups on /mnt/tmp/ltp-ybN32ZSnlG/cgroup_unified
tst_cgroup.c:744: TINFO: Mounted V1 pids CGroup on /mnt/tmp/ltp-ybN32ZSnlG/cgroup_pids
tst_cgroup.c:570: TBROK: Available V2 controllers are changing between scans?
cgroup_regression_test 7 TBROK: 'tst_cgctl require' exited

I cannot solve these problems and kindly request any guidance or insights that could assist me in resolving these errors.
Any assistance or suggestions would be highly appreciated.

[Jiaweiiiiii]

tst_cgroup.c:744: TINFO: Mounted V1 pids CGroup on /mnt/tmp/ltp-QFYmer743Z/cgroup_pids
tst_cgroup.c:570: TBROK: Available V2 controllers are changing between scans?
pids 1 TBROK: 'tst_cgctl require' exited

This TBROK often appears during testing.