Few tests - dmesg-warn/dmesg-fail - kobject: kobject_add_internal failed for kunit with -EEXIST, don't try to register things with the same name in the same directory.
<6> [59.039608] [IGT] drm_buddy: starting dynamic subtest drm_test_buddy_alloc_limit
<4> [59.044846] sysfs: cannot create duplicate filename '/devices/kunit'
<4> [59.044852] CPU: 1 PID: 1298 Comm: drm_buddy Tainted: G N 6.8.0-rc1-CI_DRM_14159-g7f85c565ce86+ #1
<4> [59.044858] Hardware name: Intel Corporation Meteor Lake Client Platform/MTL-P LP5x T3 RVP, BIOS MTLPFWI1.R00.3424.D84.2310311355 10/31/2023
<4> [59.044860] Call Trace:
<4> [59.044862] <TASK>
<4> [59.044865] dump_stack_lvl+0x92/0xb0
<4> [59.044874] sysfs_warn_dup+0x56/0x70
<4> [59.044880] sysfs_create_dir_ns+0xb9/0xd0
<4> [59.044884] kobject_add_internal+0xb7/0x280
<4> [59.044889] kobject_add+0x7e/0xf0
<4> [59.044894] ? get_device_parent.isra.0+0x1f/0x1d0
<4> [59.044902] device_add+0x100/0x7e0
<4> [59.044904] ? lockdep_init_map_type+0x4b/0x260
<4> [59.044913] __root_device_register+0x66/0xf0
<4> [59.044916] ? __pfx_kunit_init+0x10/0x10 [kunit]
<4> [59.044929] kunit_bus_init+0x1b/0x70 [kunit]
<4> [59.044941] ? rcu_is_watching+0x11/0x50
<4> [59.044946] kunit_init+0x1f/0xff0 [kunit]
<4> [59.044955] do_one_initcall+0x57/0x270
<4> [59.044960] ? kmalloc_trace+0x222/0x260
<4> [59.044965] ? do_init_module+0x1e/0x210
<4> [59.044971] do_init_module+0x5f/0x210
<4> [59.044974] load_module+0x1d1a/0x1f80
<4> [59.044989] ? init_module_from_file+0x86/0xd0
<4> [59.044992] init_module_from_file+0x86/0xd0
<4> [59.045000] idempotent_init_module+0x17c/0x230
<4> [59.045010] __x64_sys_finit_module+0x56/0xb0
<4> [59.045014] do_syscall_64+0x6f/0x140
<4> [59.045021] entry_SYSCALL_64_after_hwframe+0x6e/0x76
<4> [59.045026] RIP: 0033:0x7fc38f8b973d
<4> [59.045030] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 37 0d 00 f7 d8 64 89 01 48
<4> [59.045033] RSP: 002b:00007fc38cdff8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4> [59.045038] RAX: ffffffffffffffda RBX: 00005593aa48e870 RCX: 00007fc38f8b973d
<4> [59.045040] RDX: 0000000000000000 RSI: 00007fc38f2ceded RDI: 0000000000000007
<4> [59.045042] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005593aa490470
<4> [59.045044] R10: 0000000000000007 R11: 0000000000000246 R12: 00007fc38f2ceded
<4> [59.045046] R13: 0000000000000000 R14: 00005593aa48e590 R15: 00005593aa48e870
<4> [59.045054] </TASK>
<3> [59.045062] kobject: kobject_add_internal failed for kunit with -EEXIST, don't try to register things with the same name in the same directory.
<4> [59.058008] sysfs: cannot create duplicate filename '/bus/kunit'
<4> [59.058014] CPU: 1 PID: 1298 Comm: drm_buddy Tainted: G N 6.8.0-rc1-CI_DRM_14159-g7f85c565ce86+ #1
<4> [59.058022] Hardware name: Intel Corporation Meteor Lake Client Platform/MTL-P LP5x T3 RVP, BIOS MTLPFWI1.R00.3424.D84.2310311355 10/31/2023
<4> [59.058028] Call Trace:
<4> [59.058033] <TASK>
<4> [59.058038] dump_stack_lvl+0x92/0xb0
<4> [59.058049] sysfs_warn_dup+0x56/0x70
<4> [59.058059] sysfs_create_dir_ns+0xb9/0xd0
<4> [59.058070] kobject_add_internal+0xb7/0x280
<4> [59.058082] kset_register+0x28/0x80
<4> [59.058093] bus_register+0xb3/0x250
<4> [59.058101] ? __pfx_kunit_init+0x10/0x10 [kunit]
<4> [59.058127] kunit_bus_init+0x33/0x70 [kunit]
<4> [59.058154] ? rcu_is_watching+0x11/0x50
<4> [59.058161] kunit_init+0x1f/0xff0 [kunit]
<4> [59.058183] do_one_initcall+0x57/0x270
<4> [59.058191] ? kmalloc_trace+0x222/0x260
<4> [59.058199] ? do_init_module+0x1e/0x210
<4> [59.058212] do_init_module+0x5f/0x210
<4> [59.058221] load_module+0x1d1a/0x1f80
<4> [59.058253] ? init_module_from_file+0x86/0xd0
<4> [59.058260] init_module_from_file+0x86/0xd0
<4> [59.058282] idempotent_init_module+0x17c/0x230
<4> [59.058305] __x64_sys_finit_module+0x56/0xb0
<4> [59.058313] do_syscall_64+0x6f/0x140
<4> [59.058325] entry_SYSCALL_64_after_hwframe+0x6e/0x76
<4> [59.058333] RIP: 0033:0x7fc38f8b973d
<4> [59.058339] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 23 37 0d 00 f7 d8 64 89 01 48
<4> [59.058346] RSP: 002b:00007fc38cdff8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4> [59.058356] RAX: ffffffffffffffda RBX: 00005593aa48e870 RCX: 00007fc38f8b973d
<4> [59.058362] RDX: 0000000000000000 RSI: 00007fc38f2ceded RDI: 0000000000000007
<4> [59.058367] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005593aa490470
<4> [59.058372] R10: 0000000000000007 R11: 0000000000000246 R12: 00007fc38f2ceded
<4> [59.058377] R13: 0000000000000000 R14: 00005593aa48e590 R15: 00005593aa48e870
<4> [59.058398] </TASK>
<3> [59.058443] kobject: kobject_add_internal failed for kunit with -EEXIST, don't try to register things with the same name in the same directory.
<6> [59.077701] KTAP version 1
<6> [59.077705] 1..1
<6> [59.078487] KTAP version 1
<6> [59.078494] # Subtest: drm_buddy
<6> [59.078496] # module: drm_buddy_test
<6> [59.078498] 1..4
<6> [59.079321] ok 1 drm_test_buddy_alloc_limit
<6> [59.079973] ok 2 drm_test_buddy_alloc_optimistic
<6> [59.080479] [IGT] drm_buddy: finished subtest drm_test_buddy_alloc_limit, SUCCESS