Unclaimed access detected before write to register 0x44404, WARNING: CPU: 5 PID: 84 at drivers/gpu/drm/i915/intel_uncore.c:1525 __unclaimed_previous_reg_debug
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11467/bat-dg2-9/igt@runner@aborted.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11467/bat-dg2-9/boot0.txt
<4>[ 5.839561] i915 0000:03:00.0: Unclaimed access detected before write to register 0x44404
<4>[ 5.839575] WARNING: CPU: 5 PID: 84 at drivers/gpu/drm/i915/intel_uncore.c:1525 __unclaimed_previous_reg_debug+0x64/0x80 [i915]
<4>[ 5.839696] Modules linked in: i915 mei_hdcp snd_hda_codec_realtek(+) snd_hda_codec_generic ledtrig_audio ttm drm_buddy drm_dp_helper snd_hda_intel drm_kms_helper x86_pkg_temp_thermal syscopyarea sysfillrect snd_intel_dspcfg coretemp snd_hda_codec crct10dif_pclmul smsc75xx sysimgblt usbnet crc32_pclmul snd_hwdep fb_sys_fops mii prime_numbers ghash_clmulni_intel snd_hda_core e1000e ptp mei_me snd_pcm i2c_i801 i2c_smbus mei pps_core intel_lpss_pci
<4>[ 5.839753] CPU: 5 PID: 84 Comm: kworker/u12:4 Tainted: G W 5.18.0-rc1-CI-CI_DRM_11467+ #1
<4>[ 5.839756] Hardware name: Intel Corporation CoffeeLake Client Platform/CoffeeLake S UDIMM RVP, BIOS CNLSFWR1.R00.X220.B00.2103302221 03/30/2021
<4>[ 5.839758] Workqueue: events_unbound async_run_entry_fn
<4>[ 5.839764] RIP: 0010:__unclaimed_previous_reg_debug+0x64/0x80 [i915]
<4>[ 5.839880] Code: 08 4c 8b 6f 50 4d 85 ed 75 03 4c 8b 2f e8 e4 58 31 e1 41 89 e8 4c 89 e1 4c 89 ea 48 89 c6 48 c7 c7 18 1a 68 a0 e8 cd 01 69 e1 <0f> 0b 48 8b 43 08 83 a8 74 0d 00 00 01 eb a4 0f 1f 00 66 2e 0f 1f
<4>[ 5.839883] RSP: 0018:ffffc90000aab718 EFLAGS: 00010086
<4>[ 5.839886] RAX: 0000000000000000 RBX: ffff888115938ef0 RCX: 0000000000000006
<4>[ 5.839889] RDX: 0000000080000006 RSI: ffffffff82315cfd RDI: 00000000ffffffff
<4>[ 5.839891] RBP: 0000000000044404 R08: ffff888106126078 R09: 00000000fffffffe
<4>[ 5.839893] R10: 000000006a25055f R11: 000000002d6d98ad R12: ffffffffa06d61f7
<4>[ 5.839894] R13: ffff888102d63b60 R14: 0000000000000006 R15: 0000000000000870
<4>[ 5.839896] FS: 0000000000000000(0000) GS:ffff88846d880000(0000) knlGS:0000000000000000
<4>[ 5.839899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[ 5.839901] CR2: 00005567966ad000 CR3: 0000000006612005 CR4: 00000000003706e0
<4>[ 5.839903] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>[ 5.839904] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
<4>[ 5.839906] Call Trace:
<4>[ 5.839908] <TASK>
<4>[ 5.839914] fwtable_write32+0x1c8/0x2f0 [i915]
<4>[ 5.840033] bdw_update_pipe_irq+0x79/0x130 [i915]
<4>[ 5.840152] bdw_enable_vblank+0x55/0x80 [i915]
<4>[ 5.840268] drm_vblank_enable+0xd6/0x180
<4>[ 5.840276] drm_vblank_get+0x8d/0xd0
<4>[ 5.840284] intel_pipe_update_start+0x15c/0x480 [i915]
<4>[ 5.840447] ? finish_swait+0x80/0x80
<4>[ 5.840460] intel_update_crtc+0xb9/0x370 [i915]
<4>[ 5.840624] skl_commit_modeset_enables+0x444/0x4f0 [i915]
<4>[ 5.840790] intel_atomic_commit_tail+0x6a6/0x1800 [i915]
<4>[ 5.840959] ? intel_lpss_pci_driver_exit+0x108/0xf08 [intel_lpss_pci]
<4>[ 5.840974] intel_atomic_commit+0x363/0x3e0 [i915]
<4>[ 5.841133] drm_atomic_commit+0x8c/0xc0
<4>[ 5.841136] ? drm_plane_get_damage_clips.cold.5+0x1c/0x1c
<4>[ 5.841147] drm_client_modeset_commit_atomic+0x22b/0x270
<4>[ 5.841176] drm_client_modeset_commit_locked+0x52/0x180
<4>[ 5.841184] drm_client_modeset_commit+0x1c/0x40
<4>[ 5.841188] __drm_fb_helper_restore_fbdev_mode_unlocked+0x88/0xb0 [drm_kms_helper]
<4>[ 5.841203] drm_fb_helper_set_par+0x34/0x40 [drm_kms_helper]
<4>[ 5.841212] intel_fbdev_set_par+0x11/0x40 [i915]
<4>[ 5.841370] ? con_is_visible+0x22/0x30
<4>[ 5.841375] fbcon_init+0x286/0x510
<4>[ 5.841386] visual_init+0xc6/0x130
<4>[ 5.841391] do_bind_con_driver+0x1e5/0x2d0
<4>[ 5.841405] do_take_over_console+0x10e/0x180
<4>[ 5.841414] do_fbcon_takeover+0x53/0xb0
<4>[ 5.841417] register_framebuffer+0x22d/0x310
<4>[ 5.841432] __drm_fb_helper_initial_config_and_unlock+0x37a/0x570 [drm_kms_helper]
<4>[ 5.841455] intel_fbdev_initial_config+0xf/0x20 [i915]
<4>[ 5.841612] async_run_entry_fn+0x28/0x130
<4>[ 5.841619] process_one_work+0x272/0x5c0
<4>[ 5.841635] worker_thread+0x37/0x370
<4>[ 5.841643] ? process_one_work+0x5c0/0x5c0
<4>[ 5.841646] kthread+0xed/0x120
<4>[ 5.841649] ? kthread_complete_and_exit+0x20/0x20
<4>[ 5.841658] ret_from_fork+0x1f/0x30
<4>[ 5.841681] </TASK>
<4>[ 5.841683] irq event stamp: 21826
<4>[ 5.841684] hardirqs last enabled at (21825): [<ffffffff81b15030>] _raw_spin_unlock_irqrestore+0x50/0x60
<4>[ 5.841688] hardirqs last disabled at (21826): [<ffffffff81b14df7>] _raw_spin_lock_irqsave+0x47/0x50
<4>[ 5.841691] softirqs last enabled at (18956): [<ffffffff81e0032d>] __do_softirq+0x32d/0x493
<4>[ 5.841694] softirqs last disabled at (18951): [<ffffffff810b83f6>] irq_exit_rcu+0xa6/0xe0
<4>[ 5.841697] ---[ end trace 0000000000000000 ]---