[linus:master] [cgroup] a72f73c4dd: kernel-selftests.cgroup.test_stress.sh.test_cgcore_destroy.fail

[linus:master] [cgroup] a72f73c4dd: kernel-selftests.cgroup.test_stress.sh.test_cgcore_destroy.fail

[kernel test robot]

Hello,

kernel test robot noticed "kernel-selftests.cgroup.test_stress.sh.test_cgcore_destroy.fail" on:

commit: a72f73c4dd9b209c53cf8b03b6e97fcefad4262c ("cgroup: Don't expose dead tasks in cgroup")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linus/master      a0c83177734ab98623795e1ba2cf4b72c23de5e7]
[test failed on linux-next/master 785f0eb2f85decbe7c1ef9ae922931f0194ffc2e]

in testcase: kernel-selftests
version: kernel-selftests-x86_64-8a30aeb0d1b4-1_20260319
with following parameters:

	group: cgroup



config: x86_64-rhel-9.4-kselftests
compiler: gcc-14
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-9980XE CPU @ 3.00GHz (Skylake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)


there is another test kernel-selftests.cgroup.test_core.test_cgcore_destroy also
failed on this commit but can pass on parent.

=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/group:
  lkp-skl-d08/kernel-selftests/debian-13-x86_64-20250902.cgz/x86_64-rhel-9.4-kselftests/gcc-14/cgroup

ca174c705db52db3 a72f73c4dd9b209c53cf8b03b6e
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :9           67%           6:6     kernel-selftests.cgroup.test_core.test_cgcore_destroy.fail
           :9           67%           6:6     kernel-selftests.cgroup.test_stress.sh.test_cgcore_destroy.fail


If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202603222104.2c81684e-lkp@intel.com


TAP version 13
1..13
# timeout set to 300
# selftests: cgroup: test_core
# TAP version 13
# 1..12
# ok 1 test_cgcore_internal_process_constraint
# ok 2 test_cgcore_top_down_constraint_enable
# ok 3 test_cgcore_top_down_constraint_disable
# ok 4 test_cgcore_no_internal_process_constraint_on_threads
# ok 5 test_cgcore_parent_becomes_threaded
# ok 6 test_cgcore_invalid_domain
# ok 7 test_cgcore_populated
# ok 8 test_cgcore_proc_migration
# ok 9 test_cgcore_thread_migration
# not ok 10 test_cgcore_destroy          <------------
# ok 11 test_cgcore_lesser_euid_open
# ok 12 test_cgcore_lesser_ns_open
# # Totals: pass:11 fail:1 xfail:0 xpass:0 skip:0 error:0
not ok 1 selftests: cgroup: test_core # exit=1

...

# timeout set to 300
# selftests: cgroup: test_stress.sh
# TAP version 13
# 1..12
# ok 1 test_cgcore_internal_process_constraint
# ok 2 test_cgcore_top_down_constraint_enable
# ok 3 test_cgcore_top_down_constraint_disable
# ok 4 test_cgcore_no_internal_process_constraint_on_threads
# ok 5 test_cgcore_parent_becomes_threaded
# ok 6 test_cgcore_invalid_domain
# ok 7 test_cgcore_populated
# ok 8 test_cgcore_proc_migration
# ok 9 test_cgcore_thread_migration
# not ok 10 test_cgcore_destroy       <------------
# ok 11 test_cgcore_lesser_euid_open
# ok 12 test_cgcore_lesser_ns_open
# # Totals: pass:11 fail:1 xfail:0 xpass:0 skip:0 error:0
not ok 11 selftests: cgroup: test_stress.sh # exit=1



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260322/202603222104.2c81684e-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki