[Bug 105553] New: [CI] igt at kms_busy@extended-modeset-hang-newfb-with-reset-render-[a|b] - dmesg-warn - Unclaimed read from register 0x1f0050 - WARNING: CPU: 3 PID: 260 at drivers/gpu/drm/i915/intel_uncore.c:1070 __unclaimed_reg_debug+0x3b/0x50 [i915]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105553

            Bug ID: 105553
           Summary: [CI]
                    igt at kms_busy@extended-modeset-hang-newfb-with-reset-re
                    nder-[a|b] - dmesg-warn - Unclaimed read from register
                    0x1f0050 - WARNING: CPU: 3 PID: 260 at
                    drivers/gpu/drm/i915/intel_uncore.c:1070
                    __unclaimed_reg_debug+0x3b/0x50 [i915]
           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/drmtip_1/fi-byt-j1900/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-a.html
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_1/fi-byt-n2820/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-a.html
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_1/fi-byt-n2820/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b.html
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_1/fi-byt-j1900/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b.html

[  587.040736] i915 0000:00:02.0: Resetting chip after gpu hang
[  587.049374] ------------[ cut here ]------------
[  587.049438] Unclaimed read from register 0x1f0050
[  587.049562] WARNING: CPU: 3 PID: 260 at
drivers/gpu/drm/i915/intel_uncore.c:1070 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  587.049570] Modules linked in: snd_hda_intel i915 vgem snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic intel_powerclamp coretemp
snd_hda_codec crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hwdep
snd_hda_core r8169 mii snd_pcm lpc_ich prime_numbers i2c_hid [last unloaded:
i915]
[  587.049688] CPU: 3 PID: 260 Comm: kworker/3:3 Tainted: G     U          
4.16.0-rc5-g613eb885b69e-drmtip_1+ #1
[  587.049694] Hardware name: GIGABYTE GB-BXBT-1900/MZBAYAB-00, BIOS F6
02/17/2015
[  587.049770] Workqueue: events_long i915_hangcheck_elapsed [i915]
[  587.049847] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[  587.049853] RSP: 0018:ffffaa914048b9e0 EFLAGS: 00010086
[  587.049863] RAX: 0000000000000025 RBX: 0000000000000000 RCX:
0000000000000002
[  587.049870] RDX: 0000000080000002 RSI: ffffffff90076536 RDI:
00000000ffffffff
[  587.049877] RBP: 00000000001f0050 R08: 0000000000000000 R09:
0000000000000001
[  587.049882] R10: ffffaa914048b978 R11: 0000000000000001 R12:
0000000000000001
[  587.049891] R13: ffffa2e99e040cd8 R14: 00000000ffffffff R15:
0000000000000206
[  587.049897] FS:  0000000000000000(0000) GS:ffffa2e9bfd80000(0000)
knlGS:0000000000000000
[  587.049902] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  587.049907] CR2: 00007fd6620ff158 CR3: 000000012d734000 CR4:
00000000001006e0
[  587.049912] Call Trace:
[  587.049990]  fwtable_read32+0x214/0x290 [i915]
[  587.050063]  vlv_wm_get_hw_state+0x3a/0x970 [i915]
[  587.050145]  intel_modeset_setup_hw_state+0xe59/0xf70 [i915]
[  587.050233]  __intel_display_resume+0x19/0xc0 [i915]
[  587.050311]  intel_finish_reset+0x100/0x170 [i915]
[  587.050383]  i915_reset_device+0x1dd/0x230 [i915]
[  587.050457]  ? __intel_get_crtc_scanline+0x1f0/0x1f0 [i915]
[  587.050476]  ? work_on_cpu_safe+0x50/0x50
[  587.050554]  i915_handle_error+0x2d3/0x430 [i915]
[  587.050588]  ? scnprintf+0x3a/0x70
[  587.050671]  hangcheck_declare_hang+0xc0/0xd0 [i915]
[  587.050747]  ? fwtable_read32+0x21e/0x290 [i915]
[  587.050832]  i915_hangcheck_elapsed+0x2ee/0x310 [i915]
[  587.050856]  process_one_work+0x215/0x620
[  587.050882]  worker_thread+0x48/0x3a0
[  587.050900]  kthread+0xfb/0x130
[  587.050906]  ? process_one_work+0x620/0x620
[  587.050913]  ? _kthread_create_on_node+0x30/0x30
[  587.050926]  ret_from_fork+0x3a/0x50
[  587.050954] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 d5 3b 73 c0 48
c7 c6 cb 3b 73 c0 48 0f 44 f0 89 ea 48 c7 c7 de 3b 73 c0 e8 25 bb a1 ce <0f> 0b
83 2d 6c 33 18 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
[  587.051337] WARNING: CPU: 3 PID: 260 at
drivers/gpu/drm/i915/intel_uncore.c:1070 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  587.051342] ---[ end trace d07e938faabc14cb ]---

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