[igt-dev] ✗ Fi.CI.IGT: failure for tests: Add a test for device hot unplug

[Chris Wilson]

Quoting Patchwork (2020-04-09 05:51:27)
> == Series Details ==
> 
> Series: tests: Add a test for device hot unplug
> URL   : https://patchwork.freedesktop.org/series/75692/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_8277_full -> IGTPW_4434_full
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with IGTPW_4434_full absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in IGTPW_4434_full, please notify your bug team to allow them
>   to document this new failure mode, which will reduce false positives in CI.
> 
>   External URL: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4434/index.html
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in IGTPW_4434_full:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * {igt at core_hotunplug@hotunplug-lateclose} (NEW):
>     - shard-tglb:         NOTRUN -> [INCOMPLETE][1]
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4434/shard-tglb8/igt@core_hotunplug@hotunplug-lateclose.html
>     - shard-apl:          NOTRUN -> [INCOMPLETE][2]
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4434/shard-apl3/igt@core_hotunplug@hotunplug-lateclose.html
>     - shard-iclb:         NOTRUN -> [INCOMPLETE][3]
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4434/shard-iclb7/igt@core_hotunplug@hotunplug-lateclose.html
>     - shard-kbl:          NOTRUN -> [INCOMPLETE][4]
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4434/shard-kbl6/igt@core_hotunplug@hotunplug-lateclose.html

An interesting problem. If pm_runtime_get() starts throwing an error
after being unbound but before we release, we are going to find
quite a few of these during shutdown (I expect).

This is not going to get fixed until we start being told about these
problems regularly, and I think we are into the long tail of problems to
fix,
Acked-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris