[Bug 111373] New: [CI][BAT] igt at i915_selftest@live_(active|workaround|gt_timelines) - dmesg-warn - Unclaimed write to register 0xa168

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111373

            Bug ID: 111373
           Summary: [CI][BAT]
                    igt at i915_selftest@live_(active|workaround|gt_timelines
                    ) - dmesg-warn - Unclaimed write to register 0xa168
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: martin.peres at free.fr
        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/CI_DRM_6669/fi-bsw-cyan/igt@i915_selftest@live_gt_timelines.html

<7> [429.591534] [drm:i915_redisable_vga_power_on [i915]] Something enabled VGA
plane, disabling it
<4> [429.591817] ------------[ cut here ]------------
<4> [429.591890] Unclaimed write to register 0xa168
<4> [429.592090] WARNING: CPU: 2 PID: 413 at
drivers/gpu/drm/i915/intel_uncore.c:1077 __unclaimed_reg_debug+0x40/0x50 [i915]
<4> [429.592100] Modules linked in: i915(+) amdgpu gpu_sched ttm vgem
snd_hda_codec_hdmi coretemp crct10dif_pclmul crc32_pclmul btusb
ghash_clmulni_intel btrtl btbcm cdc_ether btintel usbnet bluetooth r8152 mii
ecdh_generic ecc snd_intel_nhlt lpc_ich snd_hda_codec snd_hwdep snd_hda_core
snd_pcm pinctrl_cherryview prime_numbers [last unloaded: i915]
<4> [429.592160] CPU: 2 PID: 413 Comm: kworker/2:3 Tainted: G     U           
5.3.0-rc3-CI-CI_DRM_6669+ #1
<4> [429.592167] Hardware name: GOOGLE Cyan/Cyan, BIOS MrChromebox 02/15/2018
<4> [429.592294] Workqueue: events __intel_wakeref_put_work [i915]
<4> [429.592422] RIP: 0010:__unclaimed_reg_debug+0x40/0x50 [i915]
<4> [429.592431] Code: 74 05 5b 5d 41 5c c3 45 84 e4 48 c7 c0 5a 74 7f a0 48 c7
c6 50 74 7f a0 48 0f 44 f0 89 ea 48 c7 c7 63 74 7f a0 e8 30 e1 a7 e0 <0f> 0b 83
2d 37 d8 25 00 01 5b 5d 41 5c c3 66 90 41 56 41 55 41 89
<4> [429.592438] RSP: 0018:ffffc9000048bd90 EFLAGS: 00010082
<4> [429.592446] RAX: 0000000000000000 RBX: 0000000000000000 RCX:
0000000000000003
<4> [429.592453] RDX: 0000000080000003 RSI: 0000000000000000 RDI:
00000000ffffffff
<4> [429.592459] RBP: 000000000000a168 R08: 0000000000000000 R09:
0000000000000001
<4> [429.592466] R10: ffffc9000048bd58 R11: 0000000008437e35 R12:
0000000000000000
<4> [429.592473] R13: ffff888063100d50 R14: 0000000000000002 R15:
0000000000000005
<4> [429.592480] FS:  0000000000000000(0000) GS:ffff888079900000(0000)
knlGS:0000000000000000
<4> [429.592487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [429.592494] CR2: 00007f9e797ae580 CR3: 0000000006210000 CR4:
00000000001006e0
<4> [429.592500] Call Trace:
<4> [429.592634]  fwtable_write32+0x21d/0x2f0 [i915]
<4> [429.592767]  gen6_disable_rps_interrupts+0x4d/0xa0 [i915]
<4> [429.592896]  gen6_rps_idle+0x15/0xe0 [i915]
<4> [429.593031]  __gt_park+0x83/0xe0 [i915]
<4> [429.593162]  ____intel_wakeref_put_last+0x1c/0x70 [i915]
<4> [429.593178]  process_one_work+0x245/0x610
<4> [429.593204]  worker_thread+0x37/0x380
<4> [429.593221]  ? process_one_work+0x610/0x610
<4> [429.593229]  kthread+0x119/0x130
<4> [429.593239]  ? kthread_park+0xa0/0xa0
<4> [429.593256]  ret_from_fork+0x3a/0x50
<4> [429.593291] irq event stamp: 149178
<4> [429.593300] hardirqs last  enabled at (149177): [<ffffffff819cece4>]
_raw_spin_unlock_irq+0x24/0x50
<4> [429.593309] hardirqs last disabled at (149178): [<ffffffff819ceb6a>]
_raw_spin_lock_irq+0xa/0x40
<4> [429.593317] softirqs last  enabled at (148858): [<ffffffff81c0033e>]
__do_softirq+0x33e/0x4ae
<4> [429.593326] softirqs last disabled at (148849): [<ffffffff810b80d9>]
irq_exit+0xa9/0xc0
<4> [429.593452] WARNING: CPU: 2 PID: 413 at
drivers/gpu/drm/i915/intel_uncore.c:1077 __unclaimed_reg_debug+0x40/0x50 [i915]
<4> [429.593459] ---[ end trace 4ba6515005f01bc6 ]---

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