[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 07:41:38 UTC 2017

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

--- Comment #1 from Marta Löfstedt <marta.lofstedt at intel.com> ---
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3494/fi-kbl-r/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-c.html

[  481.292281] Suspending console(s) (use no_console_suspend to debug)
[  497.284461] ------------[ cut here ]------------
[  497.284475] Unclaimed read from register 0x71240
[  497.284507] WARNING: CPU: 3 PID: 3202 at
drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  497.284509] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic asix usbnet mii i915 x86_pkg_temp_thermal
intel_powerclamp coretemp snd_hda_intel e1000e crct10dif_pclmul snd_hda_codec
crc32_pclmul snd_hwdep ghash_clmulni_intel snd_hda_core snd_pcm ptp pps_core
mei_me mei prime_numbers pinctrl_sunrisepoint pinctrl_intel
[  497.284541] CPU: 3 PID: 3202 Comm: kworker/u16:66 Tainted: G     U          
4.15.0-rc2-CI-CI_DRM_3494+ #1
[  497.284543] Hardware name: Intel Corporation Kabylake Client
platform/Kabylake R DDR4 RVP, BIOS KBLSE2R1.R00.X078.P02.1703030515 03/03/2017
[  497.284545] Workqueue: events_unbound async_run_entry_fn
[  497.284548] task: 00000000b17ee485 task.stack: 00000000a69e7c1f
[  497.284567] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[  497.284568] RSP: 0018:ffffc90000ac7b10 EFLAGS: 00010086
[  497.284570] RAX: 0000000000000024 RBX: 0000000000000000 RCX:
0000000000000002
[  497.284572] RDX: 0000000000000000 RSI: ffffffff81d057c9 RDI:
ffffffff81cb6b16
[  497.284573] RBP: 0000000000071240 R08: 0000000000000000 R09:
0000000000000001
[  497.284574] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000001
[  497.284575] R13: ffff8802a0c40ca8 R14: 0000000000000000 R15:
0000000000000206
[  497.284577] FS:  0000000000000000(0000) GS:ffff8802becc0000(0000)
knlGS:0000000000000000
[  497.284578] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  497.284579] CR2: 000055bd95f0ad80 CR3: 0000000003e10004 CR4:
00000000003606e0
[  497.284581] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  497.284582] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[  497.284583] Call Trace:
[  497.284603]  fwtable_read32+0x214/0x290 [i915]
[  497.284620]  skl_pipe_wm_get_hw_state+0xc9/0x1e0 [i915]
[  497.284639]  skl_wm_get_hw_state+0x4d/0xd0 [i915]
[  497.284661]  intel_modeset_setup_hw_state+0xee8/0xf80 [i915]
[  497.284668]  ? pci_pm_suspend_late+0x30/0x30
[  497.284688]  __intel_display_resume+0x19/0xc0 [i915]
[  497.284708]  intel_display_resume+0xbc/0xf0 [i915]
[  497.284712]  ? __mutex_unlock_slowpath+0x38/0x270
[  497.284731]  i915_pm_restore+0xc4/0x140 [i915]
[  497.284735]  dpm_run_callback+0x5f/0x310
[  497.284739]  device_resume+0xa3/0x1b0
[  497.284743]  ? dpm_watchdog_set+0x60/0x60
[  497.284749]  async_resume+0x14/0x40
[  497.284751]  async_run_entry_fn+0x2e/0x160
[  497.284755]  process_one_work+0x227/0x650
[  497.284762]  worker_thread+0x48/0x3a0
[  497.284767]  kthread+0x173/0x1b0
[  497.284769]  ? process_one_work+0x650/0x650
[  497.284771]  ? _kthread_create_on_node+0x30/0x30
[  497.284774]  ret_from_fork+0x24/0x30
[  497.284783] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 88 91 2f a0 48
c7 c6 7e 91 2f a0 48 0f 44 f0 89 ea 48 c7 c7 91 91 2f a0 e8 85 d3 e3 e0 <0f> ff
83 2d cc 77 16 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
[  497.284850] ---[ end trace b58b1c00140dfed2 ]---
[  497.516464] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[  497.892287] atkbd serio0: Failed to enable keyboard on isa0060/serio0

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