[Bug 104548] New: [BAT] igt at gem_exec_suspend@basic-s3 - dmesg-warn - Unclaimed write to register 0x66a00

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104548

            Bug ID: 104548
           Summary: [BAT] igt at gem_exec_suspend@basic-s3 - dmesg-warn -
                    Unclaimed write to register 0x66a00
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marta.lofstedt at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4124/fi-skl-6700k2/igt@gem_exec_suspend@basic-s3.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3608/fi-skl-6700k2/igt@gem_exec_suspend@basic-s3.html

[  188.178792] Unclaimed write to register 0x66a00
[  188.178820] WARNING: CPU: 5 PID: 149 at
drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  188.178821] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp
crct10dif_pclmul crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec
snd_hwdep snd_hda_core e1000e mei_me snd_pcm mei ptp pps_core prime_numbers
[  188.178842] CPU: 5 PID: 149 Comm: kworker/u16:2 Tainted: G     U          
4.15.0-rc7-CI-CI_DRM_3608+ #1
[  188.178843] Hardware name: System manufacturer System Product Name/Z170 PRO
GAMING, BIOS 0802 09/02/2015
[  188.178846] Workqueue: events_unbound async_run_entry_fn
[  188.178863] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[  188.178865] RSP: 0018:ffffc90000bb79c8 EFLAGS: 00010096
[  188.178867] RAX: 0000000000000023 RBX: 0000000000000000 RCX:
0000000000000002
[  188.178868] RDX: 0000000000000000 RSI: ffffffff82107929 RDI:
ffffffff820b8e2e
[  188.178869] RBP: 0000000000066a00 R08: 0000000000000000 R09:
0000000000000001
[  188.178870] R10: ffffc90000bb7960 R11: 0000000000000001 R12:
0000000000000000
[  188.178871] R13: 0000000000000000 R14: 0000000000000202 R15:
ffff8804383c0008
[  188.178872] FS:  0000000000000000(0000) GS:ffff880455d40000(0000)
knlGS:0000000000000000
[  188.178873] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.178874] CR2: 00007fb25780cfa0 CR3: 0000000005210006 CR4:
00000000003606e0
[  188.178875] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[  188.178876] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[  188.178877] Call Trace:
[  188.178895]  fwtable_write32+0x27f/0x290 [i915]
[  188.178914]  _intel_hdcp_disable+0x6c/0x130 [i915]
[  188.178934]  intel_hdcp_disable+0x35/0x60 [i915]
[  188.178952]  intel_disable_ddi+0x17/0xf0 [i915]
[  188.178970]  intel_encoders_disable.isra.60+0x7a/0x80 [i915]
[  188.178989]  haswell_crtc_disable+0x43/0x130 [i915]
[  188.179008]  intel_atomic_commit_tail+0x1bb/0xce0 [i915]
[  188.179029]  intel_atomic_commit+0x25f/0x320 [i915]
[  188.179035]  drm_atomic_helper_disable_all+0x167/0x1a0
[  188.179039]  drm_atomic_helper_suspend+0x3c/0xb0
[  188.179060]  intel_display_suspend+0xd/0x50 [i915]
[  188.179072]  i915_drm_suspend+0x79/0x160 [i915]
[  188.179075]  ? pci_pm_freeze+0xd0/0xd0
[  188.179076]  pci_pm_suspend+0x74/0x140
[  188.179079]  dpm_run_callback+0x5f/0x310
[  188.179082]  __device_suspend+0xf3/0x5a0
[  188.179086]  ? dpm_watchdog_set+0x60/0x60
[  188.179091]  async_suspend+0x15/0x90
[  188.179094]  async_run_entry_fn+0x2e/0x160
[  188.179097]  process_one_work+0x215/0x640
[  188.179102]  worker_thread+0x48/0x3a0
[  188.179107]  kthread+0xfb/0x130
[  188.179109]  ? process_one_work+0x640/0x640
[  188.179110]  ? _kthread_create_on_node+0x30/0x30
[  188.179114]  ret_from_fork+0x24/0x30
[  188.179121] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 85 75 2c a0 48
c7 c6 7b 75 2c a0 48 0f 44 f0 89 ea 48 c7 c7 8e 75 2c a0 e8 b5 4c e7 e0 <0f> ff
83 2d 4c bc 16 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00

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