https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3489/fi-glk-dsi/igt@drv_hangman@error-state-basic.html

from dmesg:
<7>[   40.212306] [IGT] drv_hangman: executing
<7>[   40.227163] [drm:intel_power_well_enable [i915]] enabling DC off
<7>[   40.227200] [drm:gen9_set_dc_state [i915]] Setting DC state from 01 to 00
<1>[   40.231536] BUG: unable to handle kernel NULL pointer dereference at 000000005b1ebf75
<1>[   40.231562] IP: try_to_grab_pending+0x2/0x160
<6>[   40.231571] PGD 0 P4D 0 
<4>[   40.231581] Oops: 0000 [#1] PREEMPT SMP
<0>[   40.231593] Dumping ftrace buffer:
<0>[   40.231601] ---------------------------------
<0>[   40.231673] modprobe-285     3..s1 11119977us : execlists_submission_tasklet: rcs0 in[0]:  ctx=2.1, seqno=1
...
<0>[   40.244909]  python3-1373    1..s. 40300546us : execlists_submission_tasklet: rcs0 out[0]: ctx=2.1, seqno=b2
<0>[   40.244924] ---------------------------------
<4>[   40.244932] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep r8169 snd_hda_core mii snd_pcm mei_me mei prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
<4>[   40.245007] CPU: 3 PID: 1392 Comm: drv_hangman Not tainted 4.15.0-rc2-CI-CI_DRM_3489+ #1
<4>[   40.245019] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[   40.245035] task: 000000005020f725 task.stack: 00000000752e59fb
<4>[   40.245045] RIP: 0010:try_to_grab_pending+0x2/0x160
<4>[   40.245053] RSP: 0018:ffffc90001ed7ce0 EFLAGS: 00010286
<4>[   40.245063] RAX: ffff88016aacc2a8 RBX: ffff88016aacc2e0 RCX: 0000000000000064
<4>[   40.245073] RDX: ffffc90001ed7cf0 RSI: 0000000000000001 RDI: ffff88016e2d9028
<4>[   40.245084] RBP: ffff88016e2d9028 R08: ffff88016a3a5ae8 R09: 00000000558bb5d9
<4>[   40.245095] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000010
<4>[   40.245105] R13: ffff8801746ae7c8 R14: 0000000000000064 R15: ffff88016e2d8c78
<4>[   40.245116] FS:  00007f960587e8c0(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
<4>[   40.245128] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   40.245137] CR2: 0000000000000001 CR3: 00000001729c0000 CR4: 0000000000340ee0
<4>[   40.245147] Call Trace:
<4>[   40.245155]  mod_delayed_work_on+0x28/0x80
<4>[   40.245195]  unreserve_engine.isra.4+0x33/0x70 [i915]
<4>[   40.245235]  i915_gem_request_retire+0x102/0x600 [i915]
<4>[   40.245245]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[   40.245285]  i915_gem_retire_requests+0x170/0x1f0 [i915]
<4>[   40.245325]  i915_drop_caches_set+0x18a/0x190 [i915]
<4>[   40.245338]  simple_attr_write+0xab/0xc0
<4>[   40.245349]  full_proxy_write+0x4b/0x70
<4>[   40.245359]  __vfs_write+0x1e/0x130
<4>[   40.245367]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[   40.245375]  ? rcu_sync_lockdep_assert+0x25/0x50
<4>[   40.245384]  ? __sb_start_write+0xd5/0x1f0
<4>[   40.245391]  ? __sb_start_write+0xef/0x1f0
<4>[   40.245401]  vfs_write+0xc0/0x1b0
<4>[   40.245409]  SyS_write+0x40/0xa0
<4>[   40.245418]  entry_SYSCALL_64_fastpath+0x1c/0x89
<4>[   40.245426] RIP: 0033:0x7f9604067670
<4>[   40.245432] RSP: 002b:00007ffeadcf61d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
<4>[   40.245445] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9604067670
<4>[   40.245455] RDX: 0000000000000005 RSI: 00007ffeadcf61e0 RDI: 0000000000000005
<4>[   40.245466] RBP: 0000000000000005 R08: 000055bb534493a0 R09: 0000000000000000
<4>[   40.245476] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
<4>[   40.245487] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
<4>[   40.245501] Code: b8 01 00 00 00 5b 5d c3 89 44 24 04 48 89 f7 ff d5 8b 44 24 04 48 83 c4 08 5b 5d c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 41 55 <41> 6f 41 89 f4 7e 48 89 d5 4f 48 89 fb 4e 58 fa 48 5e 02 e8 56 
<1>[   40.245590] RIP: try_to_grab_pending+0x2/0x160 RSP: ffffc90001ed7ce0
<4>[   40.245600] CR2: 0000000000000001
<4>[   40.245607] ---[ end trace 0ed5e01c56a84132 ]---
<3>[   40.372500] BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:34
<3>[   40.372519] in_atomic(): 0, irqs_disabled(): 1, pid: 1392, name: drv_hangman
<4>[   40.372530] INFO: lockdep is turned off.
<4>[   40.372537] irq event stamp: 22458
<4>[   40.372550] hardirqs last  enabled at (22457): [<00000000cb83bac2>] _raw_spin_unlock_irq+0x24/0x50
<4>[   40.372564] hardirqs last disabled at (22458): [<000000004039b979>] error_entry+0x66/0xc0
<4>[   40.372627] softirqs last  enabled at (21440): [<000000008d4a7b14>] __i915_add_request+0x1e9/0x4a0 [i915]
<4>[   40.372672] softirqs last disabled at (21432): [<000000008d4a7b14>] __i915_add_request+0x1e9/0x4a0 [i915]
<4>[   40.372688] CPU: 3 PID: 1392 Comm: drv_hangman Tainted: G      D          4.15.0-rc2-CI-CI_DRM_3489+ #1
<4>[   40.372702] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[   40.372717] Call Trace:
<4>[   40.372730]  dump_stack+0x5f/0x86
<4>[   40.372739]  ___might_sleep+0x1d9/0x240
<4>[   40.372750]  exit_signals+0x1b/0x2a0
<4>[   40.372759]  do_exit+0x93/0xcc0
<4>[   40.372767]  ? vfs_write+0xc0/0x1b0
<4>[   40.372776]  ? SyS_write+0x40/0xa0
<4>[   40.372785]  rewind_stack_do_exit+0x17/0x20
<1>[   40.519496] BUG: unable to handle kernel paging request at 00000000c8abb234
<1>[   40.519518] IP: 0xfffffffefa990622
<6>[   40.519525] PGD 3e11067 P4D 3e11067 PUD 0 
<4>[   40.519537] Oops: 0010 [#2] PREEMPT SMP
<0>[   40.519546] Dumping ftrace buffer:
<0>[   40.519557]    (ftrace buffer empty)
<4>[   40.519563] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep r8169 snd_hda_core mii snd_pcm mei_me mei prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
<4>[   40.519632] CPU: 3 PID: 30 Comm: kworker/3:0 Tainted: G      D W        4.15.0-rc2-CI-CI_DRM_3489+ #1
<4>[   40.519645] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[   40.519665] Workqueue: events efivar_update_sysfs_entries
<4>[   40.519675] task: 00000000b251fd8e task.stack: 00000000b275c39c
<4>[   40.519684] RIP: 0010:0xfffffffefa990622
<4>[   40.519691] RSP: 0018:ffffc90000163b78 EFLAGS: 00010206
<4>[   40.519701] RAX: 00000000000020ff RBX: ffffc90000163c00 RCX: 0000000000000440
<4>[   40.519711] RDX: 00000000000000b2 RSI: 0000000000000000 RDI: 0000000000000000
<4>[   40.519722] RBP: fffffffefa891040 R08: 0000000000000440 R09: 00000000000000ff
<4>[   40.519732] R10: 0000000076e91018 R11: 0000000000000002 R12: fffffffefa89106c
<4>[   40.519742] R13: ffffc90000163da8 R14: 0000000000000000 R15: ffffc90000163db0
<4>[   40.519753] FS:  0000000000000000(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
<4>[   40.519766] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   40.519774] CR2: fffffffefa990622 CR3: 0000000003e10000 CR4: 0000000000340ee0
<4>[   40.519785] Call Trace:
<4>[   40.519794]  ? finish_task_switch+0x6a/0x210
<4>[   40.519806]  ? _raw_spin_unlock_irq+0x2f/0x50
<4>[   40.519819]  ? efi_call+0x58/0x90
<4>[   40.519826]  ? down_interruptible+0xe/0x50
<4>[   40.519838]  ? virt_efi_get_next_variable+0xdf/0x210
<4>[   40.519847]  ? efivar_update_sysfs_entry+0x2d/0x80
<4>[   40.519857]  ? efivar_init+0xfa/0x370
<4>[   40.519864]  ? efivar_init+0xfa/0x370
<4>[   40.519871]  ? efivar_release+0x10/0x10
<4>[   40.519882]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[   40.519891]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[   40.519900]  ? process_one_work+0x227/0x650
<4>[   40.519911]  ? worker_thread+0x48/0x3a0
<4>[   40.519922]  ? kthread+0x173/0x1b0
<4>[   40.519929]  ? process_one_work+0x650/0x650
<4>[   40.519936]  ? _kthread_create_on_node+0x30/0x30
<4>[   40.519946]  ? ret_from_fork+0x24/0x30
<4>[   40.519956] Code:  Bad RIP value.
<1>[   40.519968] RIP: 0xfffffffefa990622 RSP: ffffc90000163b78
<4>[   40.519976] CR2: fffffffefa990622
<4>[   40.519984] ---[ end trace 0ed5e01c56a84133 ]---
<3>[   40.520286] BUG: scheduling while atomic: kworker/3:0/30/0x00000003
<4>[   40.520300] INFO: lockdep is turned off.
<4>[   40.520309] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep r8169 snd_hda_core mii snd_pcm mei_me mei prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
<3>[   40.520390] Preemption disabled at:
<4>[   40.520393] [<00000000f0266c67>] virt_efi_get_next_variable+0x6a/0x210
<4>[   40.520410] CPU: 3 PID: 30 Comm: kworker/3:0 Tainted: G      D W        4.15.0-rc2-CI-CI_DRM_3489+ #1
<4>[   40.520424] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[   40.520440] Workqueue: events efivar_update_sysfs_entries
<4>[   40.520451] Call Trace:
<4>[   40.520460]  dump_stack+0x5f/0x86
<4>[   40.520469]  ? virt_efi_get_next_variable+0x6a/0x210
<4>[   40.520478]  __schedule_bug+0x7a/0xd0
<4>[   40.520487]  __schedule+0x849/0xaf0
<4>[   40.520495]  ? trace_hardirqs_on_thunk+0x1a/0x1c
<4>[   40.520505]  ? __down_interruptible+0x7e/0x110
<4>[   40.520513]  schedule+0x37/0x90
<4>[   40.520520]  schedule_timeout+0x216/0x520
<4>[   40.520533]  ? __down_interruptible+0x7e/0x110
<4>[   40.520541]  __down_interruptible+0x9d/0x110
<4>[   40.520552]  ? down_interruptible+0x3d/0x50
<4>[   40.520560]  down_interruptible+0x3d/0x50
<4>[   40.520568]  efivar_entry_set_safe+0x5f/0x1b0
<4>[   40.520580]  ? efi_pstore_write+0x100/0x140
<4>[   40.520587]  efi_pstore_write+0x100/0x140
<4>[   40.520598]  ? build_tree+0x1f3/0x460
<4>[   40.520613]  pstore_dump+0x196/0x330
<4>[   40.520628]  kmsg_dump+0xf5/0x1c0
<4>[   40.520636]  oops_end+0x3e/0x80
<4>[   40.520646]  no_context+0x165/0x430
<4>[   40.520655]  __do_page_fault+0x196/0x560
<4>[   40.520666]  page_fault+0x22/0x30
<4>[   40.520673] RIP: 0010:0xfffffffefa990622
<4>[   40.520680] RSP: 0018:ffffc90000163b78 EFLAGS: 00010206
<4>[   40.520690] RAX: 00000000000020ff RBX: ffffc90000163c00 RCX: 0000000000000440
<4>[   40.520701] RDX: 00000000000000b2 RSI: 0000000000000000 RDI: 0000000000000000
<4>[   40.520711] RBP: fffffffefa891040 R08: 0000000000000440 R09: 00000000000000ff
<4>[   40.520722] R10: 0000000076e91018 R11: 0000000000000002 R12: fffffffefa89106c
<4>[   40.520732] R13: ffffc90000163da8 R14: 0000000000000000 R15: ffffc90000163db0
<4>[   40.520748]  ? finish_task_switch+0x6a/0x210
<4>[   40.520759]  ? _raw_spin_unlock_irq+0x2f/0x50
<4>[   40.520771]  ? efi_call+0x58/0x90
<4>[   40.520778]  ? down_interruptible+0xe/0x50
<4>[   40.520789]  ? virt_efi_get_next_variable+0xdf/0x210
<4>[   40.520799]  ? efivar_update_sysfs_entry+0x2d/0x80
<4>[   40.520809]  ? efivar_init+0xfa/0x370
<4>[   40.520816]  ? efivar_init+0xfa/0x370
<4>[   40.520824]  ? efivar_release+0x10/0x10
<4>[   40.520834]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[   40.520843]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[   40.520852]  ? process_one_work+0x227/0x650
<4>[   40.520863]  ? worker_thread+0x48/0x3a0
<4>[   40.520872]  ? kthread+0x173/0x1b0
<4>[   40.520879]  ? process_one_work+0x650/0x650
<4>[   40.520887]  ? _kthread_create_on_node+0x30/0x30
<4>[   40.520896]  ? ret_from_fork+0x24/0x30
<4>[   40.520924] WARNING: CPU: 3 PID: 30 at kernel/rcu/tree_plugin.h:331 rcu_note_context_switch+0x69/0x6c0
<4>[   40.520941] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep r8169 snd_hda_core mii snd_pcm mei_me mei prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
<4>[   40.521025] CPU: 3 PID: 30 Comm: kworker/3:0 Tainted: G      D W        4.15.0-rc2-CI-CI_DRM_3489+ #1
<4>[   40.521039] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[   40.521056] Workqueue: events efivar_update_sysfs_entries
<4>[   40.521066] task: 00000000b251fd8e task.stack: 00000000b275c39c
<4>[   40.521076] RIP: 0010:rcu_note_context_switch+0x69/0x6c0
<4>[   40.521085] RSP: 0018:ffffc900001635a0 EFLAGS: 00010002
<4>[   40.521095] RAX: 0000000000000001 RBX: ffff88017aad2900 RCX: 0000000080000003
<4>[   40.521105] RDX: 0000000000000002 RSI: ffffffff81d11847 RDI: 0000000000000000
<4>[   40.521115] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
<4>[   40.521126] R10: 0000000000000000 R11: ffffffff8325100d R12: ffff88017aad2900
<4>[   40.521137] R13: ffff88017fd9b018 R14: ffffc90000163700 R15: 0000000000000000
<4>[   40.521148] FS:  0000000000000000(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
<4>[   40.521160] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[   40.521169] CR2: fffffffefa990622 CR3: 0000000003e10000 CR4: 0000000000340ee0
<4>[   40.521180] Call Trace:
<4>[   40.521188]  __schedule+0x98/0xaf0
<4>[   40.521195]  ? trace_hardirqs_on_thunk+0x1a/0x1c
<4>[   40.521206]  ? __down_interruptible+0x7e/0x110
<4>[   40.521215]  schedule+0x37/0x90
<4>[   40.521221]  schedule_timeout+0x216/0x520
<4>[   40.521234]  ? __down_interruptible+0x7e/0x110
<4>[   40.521243]  __down_interruptible+0x9d/0x110
<4>[   40.521253]  ? down_interruptible+0x3d/0x50
<4>[   40.521261]  down_interruptible+0x3d/0x50
<4>[   40.521271]  efivar_entry_set_safe+0x5f/0x1b0
<4>[   40.521281]  ? efi_pstore_write+0x100/0x140
<4>[   40.521289]  efi_pstore_write+0x100/0x140
<4>[   40.521297]  ? build_tree+0x1f3/0x460
<4>[   40.521310]  pstore_dump+0x196/0x330
<4>[   40.521323]  kmsg_dump+0xf5/0x1c0
<4>[   40.521331]  oops_end+0x3e/0x80
<4>[   40.521340]  no_context+0x165/0x430
<4>[   40.521348]  __do_page_fault+0x196/0x560
<4>[   40.521359]  page_fault+0x22/0x30
<4>[   40.521367] RIP: 0010:0xfffffffefa990622
<4>[   40.521373] RSP: 0018:ffffc90000163b78 EFLAGS: 00010206
<4>[   40.521384] RAX: 00000000000020ff RBX: ffffc90000163c00 RCX: 0000000000000440
<4>[   40.521394] RDX: 00000000000000b2 RSI: 0000000000000000 RDI: 0000000000000000
<4>[   40.521405] RBP: fffffffefa891040 R08: 0000000000000440 R09: 00000000000000ff
<4>[   40.521417] R10: 0000000076e91018 R11: 0000000000000002 R12: fffffffefa89106c
<4>[   40.521427] R13: ffffc90000163da8 R14: 0000000000000000 R15: ffffc90000163db0
<4>[   40.521444]  ? finish_task_switch+0x6a/0x210
<4>[   40.521454]  ? _raw_spin_unlock_irq+0x2f/0x50
<4>[   40.521466]  ? efi_call+0x58/0x90
<4>[   40.521473]  ? down_interruptible+0xe/0x50
<4>[   40.521485]  ? virt_efi_get_next_variable+0xdf/0x210
<4>[   40.521494]  ? efivar_update_sysfs_entry+0x2d/0x80
<4>[   40.521504]  ? efivar_init+0xfa/0x370
<4>[   40.521512]  ? efivar_init+0xfa/0x370
<4>[   40.521519]  ? efivar_release+0x10/0x10
<4>[   40.521531]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[   40.521540]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[   40.521549]  ? process_one_work+0x227/0x650
<4>[   40.521559]  ? worker_thread+0x48/0x3a0
<4>[   40.521568]  ? kthread+0x173/0x1b0
<4>[   40.521577]  ? process_one_work+0x650/0x650
<4>[   40.521585]  ? _kthread_create_on_node+0x30/0x30
<4>[   40.521594]  ? ret_from_fork+0x24/0x30
<4>[   40.521605] Code: 00 00 85 ff 74 0e 8b b3 c4 08 00 00 85 f6 0f 84 ed 01 00 00 40 84 ed 8b 83 b8 03 00 00 0f 85 02 01 00 00 85 c0 0f 8e 02 01 00 00 <0f> ff 80 bb bc 03 00 00 00 0f 84 20 02 00 00 e8 73 c0 ff ff e8 
<4>[   40.521697] ---[ end trace 0ed5e01c56a84134 ]---
<3>[  105.551646] INFO: rcu_preempt detected stalls on CPUs/tasks:
<3>[  105.551740] 	Tasks blocked on level-0 rcu_node (CPUs 0-3): P30
<3>[  105.551776] 	(detected by 2, t=65002 jiffies, g=3726, c=3725, q=6722)
<6>[  105.551817] kworker/3:0     S    0    30      2 0x80000000
<6>[  105.551864] Workqueue: events efivar_update_sysfs_entries
<4>[  105.551895] Call Trace:
<4>[  105.551928]  ? __schedule+0x3c3/0xaf0
<4>[  105.551953]  ? trace_hardirqs_on_thunk+0x1a/0x1c
<4>[  105.551987]  ? __down_interruptible+0x7e/0x110
<4>[  105.552013]  schedule+0x37/0x90
<4>[  105.552036]  schedule_timeout+0x216/0x520
<4>[  105.552074]  ? __down_interruptible+0x7e/0x110
<4>[  105.552100]  __down_interruptible+0x9d/0x110
<4>[  105.552135]  ? down_interruptible+0x3d/0x50
<4>[  105.552161]  down_interruptible+0x3d/0x50
<4>[  105.552189]  efivar_entry_set_safe+0x5f/0x1b0
<4>[  105.552224]  ? efi_pstore_write+0x100/0x140
<4>[  105.552249]  efi_pstore_write+0x100/0x140
<4>[  105.552276]  ? build_tree+0x1f3/0x460
<4>[  105.552320]  pstore_dump+0x196/0x330
<4>[  105.552361]  kmsg_dump+0xf5/0x1c0
<4>[  105.552389]  oops_end+0x3e/0x80
<4>[  105.552414]  no_context+0x165/0x430
<4>[  105.552444]  __do_page_fault+0x196/0x560
<4>[  105.552476]  page_fault+0x22/0x30
<4>[  105.552499] RIP: 0010:0xfffffffefa990622
<4>[  105.552521] RSP: 0018:ffffc90000163b78 EFLAGS: 00010206
<4>[  105.552552] RAX: 00000000000020ff RBX: ffffc90000163c00 RCX: 0000000000000440
<4>[  105.552586] RDX: 00000000000000b2 RSI: 0000000000000000 RDI: 0000000000000000
<4>[  105.552620] RBP: fffffffefa891040 R08: 0000000000000440 R09: 00000000000000ff
<4>[  105.552654] R10: 0000000076e91018 R11: 0000000000000002 R12: fffffffefa89106c
<4>[  105.552687] R13: ffffc90000163da8 R14: 0000000000000000 R15: ffffc90000163db0
<4>[  105.552741]  ? finish_task_switch+0x6a/0x210
<4>[  105.552774]  ? _raw_spin_unlock_irq+0x2f/0x50
<4>[  105.552812]  ? efi_call+0x58/0x90
<4>[  105.552835]  ? down_interruptible+0xe/0x50
<4>[  105.552871]  ? virt_efi_get_next_variable+0xdf/0x210
<4>[  105.552901]  ? efivar_update_sysfs_entry+0x2d/0x80
<4>[  105.552933]  ? efivar_init+0xfa/0x370
<4>[  105.552956]  ? efivar_init+0xfa/0x370
<4>[  105.552981]  ? efivar_release+0x10/0x10
<4>[  105.553015]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[  105.553043]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[  105.553073]  ? process_one_work+0x227/0x650
<4>[  105.553108]  ? worker_thread+0x48/0x3a0
<4>[  105.553137]  ? kthread+0x173/0x1b0
<4>[  105.553160]  ? process_one_work+0x650/0x650
<4>[  105.553183]  ? _kthread_create_on_node+0x30/0x30
<4>[  105.553213]  ? ret_from_fork+0x24/0x30
<6>[  105.553249] kworker/3:0     S    0    30      2 0x80000000
<6>[  105.553285] Workqueue: events efivar_update_sysfs_entries
<4>[  105.553315] Call Trace:
<4>[  105.553338]  ? __schedule+0x3c3/0xaf0
<4>[  105.553361]  ? trace_hardirqs_on_thunk+0x1a/0x1c
<4>[  105.553394]  ? __down_interruptible+0x7e/0x110
<4>[  105.553421]  schedule+0x37/0x90
<4>[  105.553443]  schedule_timeout+0x216/0x520
<4>[  105.553481]  ? __down_interruptible+0x7e/0x110
<4>[  105.553506]  __down_interruptible+0x9d/0x110
<4>[  105.553539]  ? down_interruptible+0x3d/0x50
<4>[  105.553564]  down_interruptible+0x3d/0x50
<4>[  105.553592]  efivar_entry_set_safe+0x5f/0x1b0
<4>[  105.553626]  ? efi_pstore_write+0x100/0x140
<4>[  105.553651]  efi_pstore_write+0x100/0x140
<4>[  105.553676]  ? build_tree+0x1f3/0x460
<4>[  105.553718]  pstore_dump+0x196/0x330
<4>[  105.553758]  kmsg_dump+0xf5/0x1c0
<4>[  105.553784]  oops_end+0x3e/0x80
<4>[  105.553808]  no_context+0x165/0x430
<4>[  105.553836]  __do_page_fault+0x196/0x560
<4>[  105.553868]  page_fault+0x22/0x30
<4>[  105.553888] RIP: 0010:0xfffffffefa990622
<4>[  105.553910] RSP: 0018:ffffc90000163b78 EFLAGS: 00010206
<4>[  105.553940] RAX: 00000000000020ff RBX: ffffc90000163c00 RCX: 0000000000000440
<4>[  105.553974] RDX: 00000000000000b2 RSI: 0000000000000000 RDI: 0000000000000000
<4>[  105.554008] RBP: fffffffefa891040 R08: 0000000000000440 R09: 00000000000000ff
<4>[  105.554041] R10: 0000000076e91018 R11: 0000000000000002 R12: fffffffefa89106c
<4>[  105.554075] R13: ffffc90000163da8 R14: 0000000000000000 R15: ffffc90000163db0
<4>[  105.554127]  ? finish_task_switch+0x6a/0x210
<4>[  105.554159]  ? _raw_spin_unlock_irq+0x2f/0x50
<4>[  105.554197]  ? efi_call+0x58/0x90
<4>[  105.554220]  ? down_interruptible+0xe/0x50
<4>[  105.554256]  ? virt_efi_get_next_variable+0xdf/0x210
<4>[  105.554285]  ? efivar_update_sysfs_entry+0x2d/0x80
<4>[  105.554317]  ? efivar_init+0xfa/0x370
<4>[  105.554340]  ? efivar_init+0xfa/0x370
<4>[  105.554364]  ? efivar_release+0x10/0x10
<4>[  105.554399]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[  105.554427]  ? efivar_update_sysfs_entries+0x1f/0x60
<4>[  105.554456]  ? process_one_work+0x227/0x650
<4>[  105.554490]  ? worker_thread+0x48/0x3a0
<4>[  105.554519]  ? kthread+0x173/0x1b0
<4>[  105.554542]  ? process_one_work+0x650/0x650
<4>[  105.554565]  ? _kthread_create_on_node+0x30/0x30
<4>[  105.554595]  ? ret_from_fork+0x24/0x30

run.log:
running: igt/drv_hangman/error-state-basic

[005/288] pass: 5 /                       
owatch: TIMEOUT!
owatch: timeout for /dev/watchdog0 set to 10 (requested 10)
FATAL: command execution failed