http://gfx-ci.fi.intel.com/tree/drm-tip/CI_DRM_6864/fi-tgl-u/boot.html

<7>[   11.970731] [drm:intel_alloc_initial_plane_obj.isra.123 [i915]] initial plane fb obj 0000000074bc2b2e
<4>[   11.971445] ------------[ cut here ]------------
<4>[   11.971449] WARN_ON_ONCE(!crtc_clock || max_dotclk < crtc_clock)
<4>[   11.971515] WARNING: CPU: 6 PID: 331 at drivers/gpu/drm/i915/display/intel_display.c:14556 skl_max_scale+0xa4/0xb0 [i915]
<4>[   11.971517] Modules linked in: i915(+) mei_hdcp x86_pkg_temp_thermal coretemp ax88179_178a(+) usbnet mii crct10dif_pclmul crc32_pclmul ghash_clmulni_intel mei_me mei prime_numbers
<4>[   11.971531] CPU: 6 PID: 331 Comm: systemd-udevd Not tainted 5.3.0-rc8-CI-CI_DRM_6864+ #1
<4>[   11.971533] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.R00.2321.A01.1908052106 08/05/2019
<4>[   11.971575] RIP: 0010:skl_max_scale+0xa4/0xb0 [i915]
<4>[   11.971576] Code: e5 5c 19 00 00 b8 00 00 01 00 75 de 48 c7 c6 f0 7e 29 a0 48 c7 c7 db 91 2b a0 89 44 24 04 c6 05 c5 5c 19 00 01 e8 2c b3 ef e0 <0f> 0b 8b 44 24 04 eb b8 0f 1f 40 00 41 54 55 49 89 f4 53 48 8b 2f
<4>[   11.971578] RSP: 0018:ffffc9000047f718 EFLAGS: 00010286
<4>[   11.971579] RAX: 0000000000000000 RBX: 0000000000054600 RCX: 0000000000000006
<4>[   11.971581] RDX: 00000000000016a3 RSI: ffff888495638918 RDI: ffffffff82136b39
<4>[   11.971582] RBP: 000000000005835d R08: ffff888495638918 R09: 0000000000000000
<4>[   11.971583] R10: 000000003b9aca00 R11: 0000000000000000 R12: 0000000000000000
<4>[   11.971584] R13: ffff88848dc567e8 R14: ffff88848d030000 R15: ffffffffa025cc60
<4>[   11.971586] FS:  00007f1cc817c680(0000) GS:ffff8884a0700000(0000) knlGS:0000000000000000
<4>[   11.971587] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   11.971589] CR2: 00007fb4c4682ab0 CR3: 000000049563c003 CR4: 0000000000760ee0
<4>[   11.971590] PKRU: 55555554
<4>[   11.971591] Call Trace:
<4>[   11.971640]  skl_plane_check+0x111/0x3b0 [i915]
<4>[   11.971684]  ? intel_crtc_duplicate_state+0x1b/0x80 [i915]
<4>[   11.971687]  ? stack_trace_save+0x46/0x70
<4>[   11.971731]  intel_plane_atomic_check_with_state+0x9b/0x1f0 [i915]
<4>[   11.971737]  drm_atomic_helper_check_planes+0xed/0x220
<4>[   11.971782]  intel_atomic_check+0x873/0x1520 [i915]
<4>[   11.971824]  ? intel_crtc_duplicate_state+0x1b/0x80 [i915]
<4>[   11.971834]  ? mark_held_locks+0x49/0x70
<4>[   11.971840]  ? __slab_alloc.isra.28.constprop.33+0x4d/0x70
<4>[   11.971845]  drm_atomic_check_only+0x56a/0x830
<4>[   11.971850]  drm_atomic_commit+0xe/0x50
<4>[   11.971947]  intel_initial_commit+0xae/0x130 [i915]
<4>[   11.972006]  intel_modeset_init+0xa2a/0x1aa0 [i915]
<4>[   11.972047]  i915_driver_probe+0xb6f/0x15e0 [i915]
<4>[   11.972054]  ? printk+0x4d/0x69
<4>[   11.972096]  i915_pci_probe+0x43/0x1b0 [i915]
<4>[   11.972099]  ? _raw_spin_unlock_irqrestore+0x39/0x60
<4>[   11.972105]  pci_device_probe+0x9e/0x120
<4>[   11.972110]  really_probe+0xea/0x3d0
<4>[   11.972115]  driver_probe_device+0x10b/0x120
<4>[   11.972119]  device_driver_attach+0x4a/0x50
<4>[   11.972124]  __driver_attach+0x97/0x130
<4>[   11.972128]  ? device_driver_attach+0x50/0x50
<4>[   11.972130]  bus_for_each_dev+0x74/0xc0
<4>[   11.972134]  bus_add_driver+0x13f/0x210
<4>[   11.972136]  ? 0xffffffffa03cb000
<4>[   11.972138]  driver_register+0x56/0xe0
<4>[   11.972140]  ? 0xffffffffa03cb000
<4>[   11.972143]  do_one_initcall+0x58/0x300
<4>[   11.972145]  ? do_init_module+0x1d/0x1f6
<4>[   11.972148]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[   11.972150]  ? kmem_cache_alloc_trace+0x2d1/0x300
<4>[   11.972154]  do_init_module+0x56/0x1f6
<4>[   11.972157]  load_module+0x25bd/0x2a40
<4>[   11.972176]  ? __se_sys_finit_module+0xd3/0xf0
<4>[   11.972179]  __se_sys_finit_module+0xd3/0xf0
<4>[   11.972188]  do_syscall_64+0x55/0x1c0
<4>[   11.972191]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[   11.972192] RIP: 0033:0x7f1cc7c9d839
<4>[   11.972195] 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>[   11.972196] RSP: 002b:00007ffcd1b0c158 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4>[   11.972198] RAX: ffffffffffffffda RBX: 000055fde9e23950 RCX: 00007f1cc7c9d839
<4>[   11.972199] RDX: 0000000000000000 RSI: 00007f1cc797c145 RDI: 000000000000000f
<4>[   11.972200] RBP: 00007f1cc797c145 R08: 0000000000000000 R09: 00007ffcd1b0c270
<4>[   11.972202] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000000
<4>[   11.972203] R13: 000055fde9e16400 R14: 0000000000020000 R15: 000055fde9e23950
<4>[   11.972210] irq event stamp: 570894
<4>[   11.972214] hardirqs last  enabled at (570893): [<ffffffff8112d24c>] vprintk_emit+0xcc/0x340
<4>[   11.972216] hardirqs last disabled at (570894): [<ffffffff81001a8a>] trace_hardirqs_off_thunk+0x1a/0x20
<4>[   11.972220] softirqs last  enabled at (570746): [<ffffffff81c0033e>] __do_softirq+0x33e/0x4ae
<4>[   11.972223] softirqs last disabled at (570739): [<ffffffff810b8279>] irq_exit+0xa9/0xc0
<4>[   11.972270] WARNING: CPU: 6 PID: 331 at drivers/gpu/drm/i915/display/intel_display.c:14556 skl_max_scale+0xa4/0xb0 [i915]
<4>[   11.972272] ---[ end trace 5a4cbb9daad0de4c ]---

http://gfx-ci.fi.intel.com/tree/drm-tip/CI_DRM_6864/fi-tgl-u/igt%40runner%40aborted.html

Aborting.
Previous test: nothing
Next test: core_auth (basic-auth)

Kernel badly tainted (0x200) (check dmesg for details):
	(0x200) TAINT_WARN: WARN_ON has happened.

This is an escape from CI because it looks exactly like https://bugs.freedesktop.org/show_bug.cgi?id=111428.