[Bug 104172] [BAT] igt at kms_pipe_crc_basic@suspend-read-crc-pipe-a - dmesg-warn - Unclaimed read from register 0x71240 -WARNING: CPU: 7 PID: 3246 at drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]

Mon Dec 11 07:41:53 UTC 2017

https://bugs.freedesktop.org/show_bug.cgi?id=104172

--- Comment #2 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4054/fi-kbl-r/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-b.html


[  493.244744] Suspending console(s) (use no_console_suspend to debug)
[  509.318824] ------------[ cut here ]------------
[  509.318838] Unclaimed read from register 0x71240
[  509.318869] WARNING: CPU: 5 PID: 3236 at
drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  509.318870] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic asix usbnet mii i915 x86_pkg_temp_thermal snd_hda_intel
intel_powerclamp snd_hda_codec coretemp e1000e crct10dif_pclmul crc32_pclmul
snd_hwdep snd_hda_core ghash_clmulni_intel snd_pcm ptp pps_core mei_me mei
prime_numbers pinctrl_sunrisepoint pinctrl_intel
[  509.318902] CPU: 5 PID: 3236 Comm: kworker/u16:18 Tainted: G     U          
4.15.0-rc2-CI-CI_DRM_3495+ #1
[  509.318904] Hardware name: Intel Corporation Kabylake Client
platform/Kabylake R DDR4 RVP, BIOS KBLSE2R1.R00.X078.P02.1703030515 03/03/2017
[  509.318907] Workqueue: events_unbound async_run_entry_fn
[  509.318909] task: 00000000ba5bfcc9 task.stack: 0000000030374e5b
[  509.318927] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[  509.318929] RSP: 0018:ffffc9000045fb10 EFLAGS: 00010086
[  509.318931] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000002
[  509.318933] RDX: 0000000000000000 RSI: ffffffff81d057c9 RDI:
ffffffff81cb6b16
[  509.318934] RBP: 0000000000071240 R08: 0000000000000000 R09:
0000000000000001
[  509.318935] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000001
[  509.318936] R13: ffff8802a8470ca8 R14: 0000000000000000 R15:
0000000000000206
[  509.318938] FS:  0000000000000000(0000) GS:ffff8802bed40000(0000)
knlGS:0000000000000000
[  509.318939] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  509.318940] CR2: 000000000172d068 CR3: 0000000003e10004 CR4:
00000000003606e0
[  509.318941] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  509.318943] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[  509.318944] Call Trace:
[  509.318964]  fwtable_read32+0x214/0x290 [i915]
[  509.318981]  skl_pipe_wm_get_hw_state+0xc9/0x1e0 [i915]
[  509.319000]  skl_wm_get_hw_state+0x4d/0xd0 [i915]
[  509.319022]  intel_modeset_setup_hw_state+0xee8/0xf80 [i915]
[  509.319029]  ? pci_pm_suspend_late+0x30/0x30
[  509.319048]  __intel_display_resume+0x19/0xc0 [i915]
[  509.319069]  intel_display_resume+0xbc/0xf0 [i915]
[  509.319072]  ? __mutex_unlock_slowpath+0x38/0x270
[  509.319092]  i915_pm_restore+0xc4/0x140 [i915]
[  509.319095]  dpm_run_callback+0x5f/0x310
[  509.319099]  device_resume+0xa3/0x1b0
[  509.319103]  ? dpm_watchdog_set+0x60/0x60
[  509.319109]  async_resume+0x14/0x40
[  509.319111]  async_run_entry_fn+0x2e/0x160
[  509.319115]  process_one_work+0x227/0x650
[  509.319122]  worker_thread+0x48/0x3a0
[  509.319127]  kthread+0x173/0x1b0
[  509.319129]  ? process_one_work+0x650/0x650
[  509.319131]  ? _kthread_create_on_node+0x30/0x30
[  509.319134]  ret_from_fork+0x24/0x30
[  509.319143] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 88 91 2d a0 48
c7 c6 7e 91 2d a0 48 0f 44 f0 89 ea 48 c7 c7 91 91 2d a0 e8 85 d3 e5 e0 <0f> ff
83 2d cc 77 16 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
[  509.319210] ---[ end trace 505b718db1bac3a6 ]---
[  509.550616] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[  509.617677] done.
[  509.934552] atkbd serio0: Failed to enable keyboard on isa0060/serio0

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