igt@i915_selftest@mock_sanitycheck - dmesg-warn - WARNING: CPU: 1 PID: 2807 at drivers/gpu/drm/drm_mode_config.c:487 drm_mode_config_cleanup
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7971/re-tgl-u2/igt@i915_selftest@mock_sanitycheck.html#dmesg-warnings246
<4> [893.144459] WARNING: CPU: 1 PID: 2807 at drivers/gpu/drm/drm_mode_config.c:487 drm_mode_config_cleanup+0x283/0x2d0
<4> [893.144466] Modules linked in: vgem snd_hda_codec_hdmi mei_hdcp i915(-) x86_pkg_temp_thermal coretemp crct10dif_pclmul crc32_pclmul snd_intel_dspcfg snd_hda_codec ghash_clmulni_intel snd_hwdep snd_hda_core e1000e snd_pcm ptp pps_core mei_me mei intel_lpss_pci prime_numbers cdc_ether usbnet mii [last unloaded: snd_hda_intel]
<4> [893.144496] CPU: 1 PID: 2807 Comm: i915_selftest Tainted: G U 5.6.0-rc2-CI-CI_DRM_7971+ #1
<4> [893.144503] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.R00.2457.A16.1912270059 12/27/2019
<4> [893.144513] RIP: 0010:drm_mode_config_cleanup+0x283/0x2d0
<4> [893.144518] Code: 35 00 48 8b 45 00 48 39 c5 75 62 48 8b 44 24 30 65 48 33 04 25 28 00 00 00 75 56 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 89 e6 48 89 ef 48 c7 c3 91 df 34 82 e8 e9 89 ff ff eb 0c
<4> [893.144531] RSP: 0018:ffffc90000537d78 EFLAGS: 00010283
<4> [893.144536] RAX: ffff88847dd58818 RBX: ffff88847b090750 RCX: 0000000000000000
<4> [893.144542] RDX: ffff88847b0906f8 RSI: 0000000000000000 RDI: ffffffff82649d60
<4> [893.144547] RBP: ffff88847b090000 R08: 0000000000000000 R09: 0000000000000001
<4> [893.144553] R10: 0000000000000000 R11: ffffffff82641260 R12: ffff88847b090758
<4> [893.144558] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffa04eb2b0
<4> [893.144564] FS: 00007efce0706e40(0000) GS:ffff88849fe80000(0000) knlGS:0000000000000000
<4> [893.144570] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [893.144575] CR2: 000055d350c49400 CR3: 000000049484a003 CR4: 0000000000760ee0
<4> [893.144581] PKRU: 55555554
<4> [893.144584] Call Trace:
<4> [893.144625] ? intel_atomic_global_obj_cleanup+0x6d/0x90 [i915]
<4> [893.144667] intel_modeset_driver_remove_noirq+0xa0/0x110 [i915]
<4> [893.144696] i915_driver_remove+0xca/0x110 [i915]
<4> [893.144724] i915_pci_remove+0x19/0x40 [i915]
<4> [893.144730] pci_device_remove+0x36/0xb0
<4> [893.144736] device_release_driver_internal+0xe0/0x1c0
<4> [893.144742] driver_detach+0x42/0x80
<4> [893.144746] bus_remove_driver+0x56/0xd0
<4> [893.144751] pci_unregister_driver+0x25/0xa0
<4> [893.144793] i915_exit+0x1b/0x21 [i915]
<4> [893.144799] __x64_sys_delete_module+0x115/0x1e0
<4> [893.144805] ? trace_hardirqs_off_thunk+0x1a/0x1c
<4> [893.144810] do_syscall_64+0x4f/0x220
<4> [893.144816] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [893.144821] RIP: 0033:0x7efcdffb51b7
<4> [893.144825] Code: 73 01 c3 48 8b 0d d1 8c 2c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 8c 2c 00 f7 d8 64 89 01 48
<4> [893.144839] RSP: 002b:00007ffe23040a38 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
<4> [893.144846] RAX: ffffffffffffffda RBX: 00007ffe23040b20 RCX: 00007efcdffb51b7
<4> [893.144851] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000561bc474de48
<4> [893.144857] RBP: 0000561bc474dde0 R08: 00007ffe2303fa34 R09: 00007ffe23040a60
<4> [893.144863] R10: 00007ffe2303fa34 R11: 0000000000000206 R12: 0000000000000000
<4> [893.144869] R13: 00007ffe23041190 R14: 0000000000000000 R15: 0000000000000000
<4> [893.144877] irq event stamp: 0
<4> [893.144881] hardirqs last enabled at (0): [<0000000000000000>] 0x0
<4> [893.144887] hardirqs last disabled at (0): [<ffffffff810af550>] copy_process+0x500/0x1d90
<4> [893.144895] softirqs last enabled at (0): [<ffffffff810af550>] copy_process+0x500/0x1d90
<4> [893.144902] softirqs last disabled at (0): [<0000000000000000>] 0x0
<4> [893.144914] ---[ end trace bf13bb3dcb0ad0db ]---
````