igt@i915_selftest@live@gt_heartbeat - incomplete - drm_WARN_ON(kref_read(&obj->state->ref) != 1)
<4> [364.298152] i915 0000:00:02.0: drm_WARN_ON(kref_read(&obj->state->ref) != 1)
<4> [364.298400] WARNING: CPU: 0 PID: 4574 at drivers/gpu/drm/i915/display/intel_global_state.c:58 intel_atomic_global_obj_cleanup+0xbb/0xd0 [i915]
<4> [364.298408] Modules linked in: i915(+) vgem snd_hda_codec_hdmi coretemp btusb crct10dif_pclmul crc32_pclmul btrtl btbcm btintel ghash_clmulni_intel asix bluetooth usbnet mii ecdh_generic ecc snd_intel_dspcfg snd_hda_codec snd_hwdep snd_hda_core snd_pcm pinctrl_cherryview lpc_ich prime_numbers [last unloaded: i915]
<4> [364.298457] CPU: 0 PID: 4574 Comm: i915_selftest Tainted: G U 5.9.0-rc6-CI-CI_DRM_9057+ #1
<4> [364.298464] Hardware name: GOOGLE Kefka/Kefka, BIOS MrChromebox 02/04/2018
<4> [364.298596] RIP: 0010:intel_atomic_global_obj_cleanup+0xbb/0xd0 [i915]
<4> [364.298605] Code: 57 50 48 85 d2 74 2b 48 89 14 24 e8 cf f5 4e e1 48 8b 14 24 48 c7 c1 c0 e3 30 a0 48 89 c6 48 c7 c7 92 67 33 a0 e8 e5 4f e9 e0 <0f> 0b 48 8b 7b 10 eb a5 48 8b 17 eb d0 0f 1f 84 00 00 00 00 00 44
<4> [364.298611] RSP: 0000:ffffc90000453a78 EFLAGS: 00010286
<4> [364.298619] RAX: 0000000000000000 RBX: ffff88817206ba18 RCX: 0000000000000001
<4> [364.298625] RDX: 0000000000000000 RSI: ffffffff8238cf56 RDI: ffffffff823331cf
<4> [364.298631] RBP: ffff88817206b028 R08: 0000000000000001 R09: 0000000000000001
<4> [364.298637] R10: 00000000f01bebe3 R11: 00000000ffbe3a73 R12: ffff88817206b028
<4> [364.298643] R13: dead000000000122 R14: dead000000000100 R15: ffff888172060000
<4> [364.298649] FS: 00007f7f2e763e40(0000) GS:ffff88817bc00000(0000) knlGS:0000000000000000
<4> [364.298655] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [364.298661] CR2: 0000558e8afb2f40 CR3: 000000015fcbc000 CR4: 00000000001006f0
<4> [364.298667] Call Trace:
<4> [364.298916] intel_modeset_driver_remove_noirq+0x98/0x110 [i915]
<4> [364.299040] i915_driver_remove+0xbf/0xf0 [i915]
<4> [364.299162] i915_pci_probe+0x163/0x1d0 [i915]
<4> [364.299186] pci_device_probe+0x9e/0x120
<4> [364.299204] really_probe+0xea/0x4a0
<4> [364.299218] driver_probe_device+0xd9/0x140
<4> [364.299230] device_driver_attach+0x4a/0x50
<4> [364.299241] __driver_attach+0x97/0x130
<4> [364.299252] ? device_driver_attach+0x50/0x50
<4> [364.299260] bus_for_each_dev+0x74/0xc0
<4> [364.299275] bus_add_driver+0x142/0x220
<4> [364.299288] driver_register+0x56/0xf0
<4> [364.299399] i915_init+0x6c/0x7c [i915]
<4> [364.299409] ? 0xffffffffa061f000
<4> [364.299418] do_one_initcall+0x58/0x2ff
<4> [364.309899] ? kmem_cache_alloc_trace+0x75b/0x7a0
<4> [364.309925] do_init_module+0x56/0x1ee
<4> [364.309937] load_module+0x234b/0x2ac0
<4> [364.309997] ? __do_sys_finit_module+0xe9/0x110
<4> [364.310005] __do_sys_finit_module+0xe9/0x110
<4> [364.310045] do_syscall_64+0x33/0x80
<4> [364.310054] entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4> [364.310063] RIP: 0033:0x7f7f2ddff839
<4> [364.310072] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 1f f6 2c 00 f7 d8 64 89 01 48
<4> [364.310078] RSP: 002b:00007ffc0718c478 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4> [364.310086] RAX: ffffffffffffffda RBX: 000056294cc68e80 RCX: 00007f7f2ddff839
<4> [364.310092] RDX: 0000000000000000 RSI: 000056294cc64b50 RDI: 0000000000000007
<4> [364.310098] RBP: 000056294cc64b50 R08: 0000000000000004 R09: 000056294cc66020
<4> [364.310104] R10: 00007ffc0718c5c0 R11: 0000000000000246 R12: 0000000000000000
<4> [364.310110] R13: 000056294cc617a0 R14: 0000000000000020 R15: 000000000000004b
<4> [364.310143] irq event stamp: 9234937
<4> [364.310153] hardirqs last enabled at (9234943): [<ffffffff81132e89>] console_unlock+0x4f9/0x590
<4> [364.310160] hardirqs last disabled at (9234948): [<ffffffff81132db1>] console_unlock+0x421/0x590
<4> [364.310168] softirqs last enabled at (9234748): [<ffffffff81e0038f>] __do_softirq+0x38f/0x4c3
<4> [364.310175] softirqs last disabled at (9234741): [<ffffffff81c00f52>] asm_call_on_stack+0x12/0x20
<4> [364.310181] ---[ end trace a55bd8c948381e97 ]---Edited by LAKSHMINARAYANA VUDUM