All machines: kobject: kobject_add_internal failed for kunit with -EEXIST, don't try to register things with the same name in the same directory.
<6> [113.178909] [IGT] drm_mm: executing
<6> [113.181577] [IGT] drm_mm: starting subtest drm_mm
<6> [113.191034] KTAP version 1
<6> [113.191038] 1..1
<6> [113.191399] KTAP version 1
<6> [113.191406] # Subtest: drm_mm
<6> [113.191410] # module: drm_mm_test
<6> [113.191412] 1..6
<6> [113.191414] ok 1 drm_test_mm_init # SKIP
<6> [113.191416] ok 2 drm_test_mm_debug # SKIP
<6> [113.191418] ok 3 drm_test_mm_align32 # SKIP
<6> [113.191420] ok 4 drm_test_mm_align64 # SKIP
<6> [113.191421] ok 5 drm_test_mm_lowest # SKIP
<6> [113.191422] ok 6 drm_test_mm_highest # SKIP
<6> [113.191424] # drm_mm: pass:0 fail:0 skip:6 total:6
<6> [113.191426] # Totals: pass:0 fail:0 skip:6 total:6
<6> [113.191427] ok 1 drm_mm # SKIP
<6> [113.317939] [IGT] drm_mm: starting dynamic subtest drm_test_mm_init
<4> [113.325854] sysfs: cannot create duplicate filename '/devices/kunit'
<4> [113.325859] CPU: 11 PID: 1094 Comm: drm_mm Tainted: G N 6.8.0-rc3-drmtip_1504-g8a42fafc7835+ #1
<4> [113.325862] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-M LP5 RVP, BIOS RPLPFWI1.R00.4035.A00.2301200723 01/20/2023
<4> [113.325864] Call Trace:
<4> [113.325865] <TASK>
<4> [113.325867] dump_stack_lvl+0x92/0xb0
<4> [113.325873] sysfs_warn_dup+0x56/0x70
<4> [113.325878] sysfs_create_dir_ns+0xb9/0xd0
<4> [113.325881] kobject_add_internal+0xb7/0x280
<4> [113.325884] kobject_add+0x7e/0xf0
<4> [113.325888] ? get_device_parent.isra.0+0x1f/0x1d0
<4> [113.325893] device_add+0x100/0x7e0
<4> [113.325895] ? lockdep_init_map_type+0x4b/0x260
<4> [113.325902] __root_device_register+0x66/0xf0
<4> [113.325904] ? __pfx_kunit_init+0x10/0x10 [kunit]
<4> [113.325912] kunit_bus_init+0x1b/0x60 [kunit]
<4> [113.325919] ? rcu_is_watching+0x11/0x50
<4> [113.325922] kunit_init+0x1f/0xff0 [kunit]
<4> [113.325928] do_one_initcall+0x57/0x270
<4> [113.325931] ? kmalloc_trace+0x222/0x260
<4> [113.325934] ? do_init_module+0x1e/0x210
<4> [113.325939] do_init_module+0x5f/0x210
<4> [113.325941] load_module+0x1d1a/0x1f80
<4> [113.325951] ? init_module_from_file+0x86/0xd0
<4> [113.325953] init_module_from_file+0x86/0xd0
<4> [113.325959] idempotent_init_module+0x17c/0x230
<4> [113.325966] __x64_sys_finit_module+0x56/0xb0
<4> [113.325968] do_syscall_64+0x6f/0x140
<4> [113.325972] entry_SYSCALL_64_after_hwframe+0x6e/0x76
<4> [113.325976] RIP: 0033:0x7f60099e973d
<4> [113.325978] 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> [113.325980] RSP: 002b:00007f6006fff8b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4> [113.325983] RAX: ffffffffffffffda RBX: 000056035cabe470 RCX: 00007f60099e973d
<4> [113.325984] RDX: 0000000000000000 RSI: 00007f60093f8ded RDI: 0000000000000007
<4> [113.325986] RBP: 0000000000000000 R08: 0000000000000000 R09: 000056035cac0470
<4> [113.325987] R10: 0000000000000007 R11: 0000000000000246 R12: 00007f60093f8ded
<4> [113.325988] R13: 0000000000000000 R14: 000056035cabe610 R15: 000056035cabe470
<4> [113.325994] </TASK>
<3> [113.326000] kobject: kobject_add_internal failed for kunit with -EEXIST, don't try to register things with the same name in the same directory.
<6> [113.328770] KTAP version 1
<6> [113.328773] 1..1
<6> [113.329235] KTAP version 1
<6> [113.329248] # Subtest: drm_mm
<6> [113.329251] # module: drm_mm_test
<6> [113.329253] 1..6
<6> [113.330318] ok 1 drm_test_mm_init
<7> [113.330445] drm_test_mm_debug 0x0000000000000000-0x0000000000000200: 512: free
<7> [113.330453] drm_test_mm_debug 0x0000000000000200-0x0000000000000600: 1024: used
<7> [113.330456] drm_test_mm_debug 0x0000000000000600-0x0000000000000a00: 1024: free
<7> [113.330459] drm_test_mm_debug 0x0000000000000a00-0x0000000000000e00: 1024: used
<7> [113.330461] drm_test_mm_debug 0x0000000000000e00-0x0000000000001000: 512: free
<7> [113.330464] drm_test_mm_debug total: 4096, used 2048 free 2048
<6> [113.330629] ok 2 drm_test_mm_debug
<6> [113.331005] ok 3 drm_test_mm_align32
<6> [113.331221] [IGT] drm_mm: finished subtest drm_test_mm_init, SUCCESS
Edited by Tejasree Illipilli