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89bab9b8-4ae0-4213-10be-08de8819a67c X-MS-Exchange-CrossTenant-AuthSource: PH0PR11MB5832.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Mar 2026 13:48:08.3144 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 4Gm7aeByxAodqVBo/rmMd8BetkTMQTlZ4PQLSmOotHZLE4lb/kp8FoiAVY2lAcXAvARqLpEASHcw9ZcXvXWRkQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA3PR11MB9400 X-OriginatorOrg: intel.com 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 | 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