igt@i915_selftest@live@gt_lrc - incomplete - Unclaimed write to register 0x44200, WARNING: CPU: \d PID: \d+ at drivers/gpu/drm/i915/intel_uncore.c:\d+ __unclaimed_reg_debug
<4> [364.335185] i915 0000:00:02.0: Unclaimed write to register 0x44200
<4> [364.335397] WARNING: CPU: 1 PID: 923 at drivers/gpu/drm/i915/intel_uncore.c:1166 __unclaimed_reg_debug+0x69/0x80 [i915]
<4> [364.335403] Modules linked in: i915(+) vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic btusb btrtl btbcm coretemp btintel crct10dif_pclmul crc32_pclmul ghash_clmulni_intel bluetooth snd_intel_dspcfg ecdh_generic ecc r8169 snd_hda_codec realtek snd_hwdep snd_hda_core snd_pcm lpc_ich pinctrl_cherryview prime_numbers [last unloaded: i915]
<4> [364.335450] CPU: 1 PID: 923 Comm: dmesg Tainted: G U 5.6.0-rc5-CI-CI_DRM_8116+ #1
<4> [364.335456] Hardware name: /NUC5CPYB, BIOS PYBSWCEL.86A.0058.2016.1102.1842 11/02/2016
<4> [364.335583] RIP: 0010:__unclaimed_reg_debug+0x69/0x80 [i915]
<4> [364.335591] Code: 48 8b 78 18 48 8b 5f 50 48 85 db 74 2d e8 3f bb 42 e1 45 89 e8 48 89 e9 48 89 da 48 89 c6 48 c7 c7 48 9d 48 a0 e8 37 6f e0 e0 <0f> 0b 83 2d 0e 42 2d 00 01 5b 5d 41 5c 41 5d c3 48 8b 1f eb ce 66
<4> [364.335597] RSP: 0018:ffffc900000b8e90 EFLAGS: 00010082
<4> [364.335604] RAX: 0000000000000000 RBX: ffff88817a0e59f0 RCX: 0000000000010004
<4> [364.335610] RDX: 0000000000010004 RSI: 0000000000000000 RDI: 00000000ffffffff
<4> [364.335616] RBP: ffffffffa04d022a R08: 0000000000000000 R09: 0000000000000001
<4> [364.335622] R10: 00000000b33196ee R11: 000000008af19370 R12: 0000000000000000
<4> [364.335627] R13: 0000000000044200 R14: 0000000000000092 R15: ffff888178942800
<4> [364.335634] FS: 00007feff5f74240(0000) GS:ffff88817bd00000(0000) knlGS:0000000000000000
<4> [364.335640] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [364.335646] CR2: 00005566a631aea8 CR3: 000000015e472000 CR4: 00000000001006e0
<4> [364.335652] Call Trace:
<4> [364.335660] <IRQ>
<4> [364.335793] fwtable_write32+0x114/0x1d0 [i915]
<4> [364.335924] cherryview_irq_handler+0x17f/0x200 [i915]
<4> [364.335946] __handle_irq_event_percpu+0x41/0x2c0
<4> [364.335965] handle_irq_event_percpu+0x2b/0x70
<4> [364.335977] handle_irq_event+0x2f/0x50
<4> [364.335988] handle_edge_irq+0x99/0x1b0
<4> [364.336000] do_IRQ+0x7e/0x160
<4> [364.336011] common_interrupt+0xf/0xf
<4> [364.336019] </IRQ>
<4> [364.336027] RIP: 0010:preempt_schedule_irq+0x2a/0x60
<4> [364.336034] Code: 65 8b 05 d1 45 5e 7e a9 ff ff ff 7f 75 43 9c 58 f6 c4 02 75 3c bf 01 00 00 00 e8 31 41 6b ff e8 ec fd 76 ff fb bf 01 00 00 00 <e8> 31 f3 ff ff fa e8 db fe 76 ff bf 01 00 00 00 e8 91 33 6b ff 65
<4> [364.336040] RSP: 0018:ffffc90000987b30 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffda
<4> [364.336048] RAX: ffff888157360040 RBX: 0000000000000000 RCX: 0000000000000006
<4> [364.336054] RDX: 00000000000011f8 RSI: ffff888157360920 RDI: 0000000000000001
<4> [364.336059] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
<4> [364.336065] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
<4> [364.336071] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
<4> [364.336103] retint_kernel+0x1b/0x2b
<4> [364.336113] RIP: 0010:__slab_alloc.isra.89.constprop.94+0x4f/0x70
<4> [364.336119] Code: 89 f2 44 89 ee 48 8b 0c c5 c0 46 3a 82 4c 89 e7 48 01 d9 e8 53 f6 ff ff f7 c5 00 02 00 00 48 89 c3 74 13 e8 e3 95 f4 ff 55 9d <48> 89 d8 5b 5d 41 5c 41 5d 41 5e c3 55 9d e8 ce 96 f4 ff 48 89 d8
<4> [364.336125] RSP: 0018:ffffc90000987be8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffda
<4> [364.336132] RAX: ffff888157360040 RBX: ffff888158860dd0 RCX: 0000000000000006
<4> [364.336138] RDX: 00000000000011f8 RSI: ffff888157360920 RDI: ffffffff8237971d
<4> [364.336144] RBP: 0000000000000246 R08: ffff888157360920 R09: 0000000000000000
<4> [364.336150] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888178d226c0
<4> [364.336155] R13: 0000000000000d40 R14: ffffffff8139a5e0 R15: ffff888178d226c0
<4> [364.336165] ? jbd2__journal_start+0x80/0x280
<4> [364.336201] ? jbd2__journal_start+0x80/0x280
<4> [364.336208] kmem_cache_alloc+0x25f/0x2c0
<4> [364.336223] jbd2__journal_start+0x80/0x280
<4> [364.336238] ? ext4_dirty_inode+0x37/0x70
<4> [364.336247] __ext4_journal_start_sb+0x84/0x1b0
<4> [364.336264] ext4_dirty_inode+0x37/0x70
<4> [364.336274] __mark_inode_dirty+0x2fc/0x5d0
<4> [364.336290] generic_update_time+0x97/0xc0
<4> [364.336300] file_update_time+0xc2/0x110
<4> [364.336318] ext4_buffered_write_iter+0x4d/0x130
<4> [364.336332] ext4_file_write_iter+0x5a/0x7e0
<4> [364.336360] new_sync_write+0x116/0x1b0
<4> [364.336388] vfs_write+0xb9/0x1d0
<4> [364.336401] ksys_write+0x9f/0xe0
<4> [364.336418] do_syscall_64+0x4f/0x220
<4> [364.336428] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [364.336435] RIP: 0033:0x7feff5452154
<4> [364.336442] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 b1 07 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5
<4> [364.336448] RSP: 002b:00007ffd280760b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
<4> [364.336455] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007feff5452154
<4> [364.336461] RDX: 0000000000000001 RSI: 00007feff572e7e3 RDI: 0000000000000001
<4> [364.336467] RBP: 00007feff572e7e3 R08: 00007feff572e760 R09: 0000000000000000
<4> [364.336472] R10: 0000000000000005 R11: 0000000000000246 R12: 00007feff572e760
<4> [364.336478] R13: 0000000000000001 R14: 00007feff572a2a0 R15: 00007feff5729760
<4> [364.336510] irq event stamp: 58622858
<4> [364.336518] hardirqs last enabled at (58622857): [<ffffffff81a33914>] preempt_schedule_irq+0x24/0x60
<4> [364.336526] hardirqs last disabled at (58622858): [<ffffffff81001d50>] trace_hardirqs_off_thunk+0x1a/0x1c
<4> [364.336533] softirqs last enabled at (58622836): [<ffffffff81e00385>] __do_softirq+0x385/0x47f
<4> [364.336542] softirqs last disabled at (58622791): [<ffffffff810bab7a>] irq_exit+0xba/0xc0
````