[Bug 108070] [CI][BAT] igt at . - dmesg-warn - WARN_ON(intel_wait_for_register(dev_priv, regs->driver, (0x1 << ((pw_idx) * 2)), (0x1 << ((pw_idx) * 2)), 1))

Fri Oct 26 11:10:22 UTC 2018

https://bugs.freedesktop.org/show_bug.cgi?id=108070

--- Comment #13 from Martin Peres <martin.peres at free.fr> ---
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_133/fi-icl-u/igt@pm_backlight@fade_with_suspend.html

Starting subtest: fade_with_suspend
(pm_backlight:1047) CRITICAL: Test assertion failure function test_and_verify,
file ../tests/pm_backlight.c:114:
(pm_backlight:1047) CRITICAL: Failed assertion: result >= max(0, val -
tolerance) && result <= min(context->max, val + tolerance)
(pm_backlight:1047) CRITICAL: actual_brightness [0] did not match expected
brightness [96000 +- 4800]
Subtest fade_with_suspend failed.

<4> [49.813407] ------------[ cut here ]------------
<4> [49.813410] WARN_ON(intel_wait_for_register(dev_priv, regs->driver, (0x1 <<
((pw_idx) * 2)), (0x1 << ((pw_idx) * 2)), 1))
<4> [49.813457] WARNING: CPU: 4 PID: 65 at
drivers/gpu/drm/i915/intel_runtime_pm.c:306
hsw_wait_for_power_well_enable.isra.3+0x43/0x50 [i915]
<4> [49.813459] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_codec_generic i915 ax88179_178a usbnet mii x86_pkg_temp_thermal
coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel
snd_hda_codec e1000e snd_hwdep snd_hda_core snd_pcm prime_numbers
<4> [49.813502] CPU: 4 PID: 65 Comm: kworker/4:1 Tainted: G     U  W        
4.19.0-rc8-g166bc98d7b77-drmtip_133+ #1
<4> [49.813504] Hardware name: Intel Corporation Ice Lake Client
Platform/IceLake U DDR4 SODIMM PD RVP, BIOS ICLSFWR1.R00.2392.A04.1809260455
09/26/2018
<4> [49.813547] Workqueue: events i915_hpd_poll_init_work [i915]
<4> [49.813576] RIP: 0010:hsw_wait_for_power_well_enable.isra.3+0x43/0x50
[i915]
<4> [49.813578] Code: 8b 70 04 6a 00 01 c9 d3 e2 89 d1 e8 97 05 08 00 85 c0 5a
75 02 f3 c3 48 c7 c6 c8 4d 53 c0 48 c7 c7 f0 09 52 c0 e8 fd a3 cb fa <0f> 0b c3
66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 ba 01 00 00 00
<4> [49.813581] RSP: 0018:ffffb430002d3c10 EFLAGS: 00010286
<4> [49.813585] RAX: 0000000000000000 RBX: ffff8ee151d00000 RCX:
0000000000000001
<4> [49.813587] RDX: 0000000080000001 RSI: ffffffffbc0f79ca RDI:
00000000ffffffff
<4> [49.813589] RBP: 0000000000000001 R08: 00000000beed2c03 R09:
0000000000000000
<4> [49.813591] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff8ee1641a2bd8
<4> [49.813593] R13: 000000000000001f R14: 0000000000000001 R15:
0006c00000162000
<4> [49.813596] FS:  0000000000000000(0000) GS:ffff8ee16ff00000(0000)
knlGS:0000000000000000
<4> [49.813598] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [49.813601] CR2: 00007f8e9f563788 CR3: 00000001cc210005 CR4:
0000000000760ee0
<4> [49.813603] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
<4> [49.813605] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
<4> [49.813607] PKRU: 55555554
<4> [49.813609] Call Trace:
<4> [49.813637]  icl_combo_phy_aux_power_well_enable+0xc7/0x180 [i915]
<4> [49.813645]  ? _raw_spin_unlock_irqrestore+0x4c/0x60
<4> [49.813674]  intel_power_well_enable+0x35/0x40 [i915]
<4> [49.813701]  __intel_display_power_get_domain+0x69/0x80 [i915]
<4> [49.813732]  intel_display_power_get+0x2b/0x40 [i915]
<4> [49.813782]  intel_dp_detect+0x82/0x560 [i915]
<4> [49.813788]  ? drm_modeset_lock+0x70/0x110
<4> [49.813794]  drm_helper_probe_detect_ctx+0x67/0xd0
<4> [49.813807]  drm_helper_hpd_irq_event+0xa5/0x120
<4> [49.813852]  i915_hpd_poll_init_work+0xc6/0x100 [i915]
<4> [49.813860]  process_one_work+0x245/0x610
<4> [49.813870]  worker_thread+0x37/0x380
<4> [49.813876]  ? process_one_work+0x610/0x610
<4> [49.813879]  kthread+0x119/0x130
<4> [49.813883]  ? kthread_park+0x80/0x80
<4> [49.813889]  ret_from_fork+0x3a/0x50
<4> [49.813901] irq event stamp: 37650
<4> [49.813906] hardirqs last  enabled at (37649): [<ffffffffbb0fd8ee>]
vprintk_emit+0x2ee/0x310
<4> [49.813909] hardirqs last disabled at (37650): [<ffffffffbb001930>]
trace_hardirqs_off_thunk+0x1a/0x1c
<4> [49.813913] softirqs last  enabled at (37504): [<ffffffffbbc0031d>]
__do_softirq+0x31d/0x483
<4> [49.813916] softirqs last disabled at (37497): [<ffffffffbb090279>]
irq_exit+0xa9/0xc0
<4> [49.813944] WARNING: CPU: 4 PID: 65 at
drivers/gpu/drm/i915/intel_runtime_pm.c:306
hsw_wait_for_power_well_enable.isra.3+0x43/0x50 [i915]
<4> [49.813947] ---[ end trace 587c3a5eb5213a41 ]---

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