[Bug 108800] [CI][BAT] igt at pm_rpm@(module-reload|basic-rte) - fail - Failed assertion: setup_environment()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108800

--- Comment #8 from Vanshidhar Konda <vanshidhar.r.konda at intel.com> ---
CI reported a few failures on BSW/BYT systems after taking the patch to IGT
from Chris.

This shows that there is 1 reference remaining even after disabling all the
screens. Also, like you pointed out earlier, there is a reference from the
audio driver that is not present in successful runs.

Wakeref x1 taken at:
   intel_display_power_get+0x18/0x50 [i915]
   i915_audio_component_get_power+0x11/0x20 [i915]
   snd_hdac_display_power+0x6a/0x100 [snd_hda_core]
   hda_codec_runtime_resume+0x52/0x60 [snd_hda_codec]
   pm_runtime_force_resume+0x6a/0xd0
   dpm_run_callback+0x64/0x280
   device_resume+0xb3/0x1e0
   async_resume+0x14/0x40

But, why would this reference be taken only in the failure cases that happens
only in some of the runs?

Links to a few failures after the patch to IGT from Chris:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5718/fi-byt-squawks/igt@i915_pm_rpm@basic-rte.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5718/fi-byt-j1900/igt@i915_pm_rpm@basic-rte.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5718/fi-bsw-cyan/igt@i915_pm_rpm@basic-rte.html

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