Hello, Imre

I will queue shards for you.
Regards
Mateusz

-----Original Message-----
From: I915-ci-infra <[email protected]> On Behalf Of 
Imre Deak
Sent: Friday, October 17, 2025 11:31 AM
To: [email protected]
Cc: [email protected]
Subject: Re: ✗ i915.CI.BAT: failure for drm/i915/dp: Fix panel replay in DSC 
mode (rev2)

Hi CI team,

the failure is unrelated to the changes, see below for details, could you 
please forward the patchset to testing on shards as well?

On Wed, Oct 15, 2025 at 08:24:57PM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: drm/i915/dp: Fix panel replay in DSC mode (rev2)
> URL   : https://patchwork.freedesktop.org/series/155587/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_17368 -> Patchwork_155587v2 
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_155587v2 absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_155587v2, please notify your bug team 
> ([email protected]) 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/Patchwork_155587v2/index.html
> 
> Participating hosts (40 -> 38)
> ------------------------------
> 
>   Missing    (2): fi-snb-2520m bat-adls-6 
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in 
> Patchwork_155587v2:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt@gem_sync@basic-each:
>     - fi-kbl-guc:         [PASS][1] -> [INCOMPLETE][2]
>    [1]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17368/fi-kbl-guc/igt@[email protected]
>    [2]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/fi-kbl-guc
> /igt@[email protected]

There doesn't seem to be any display connected to fi-kbl-guc, so the display 
specific changes in the patchset are unrelated to the failure.

It took me a while to determine that no display is connected. Is an empty 
"i915_display_info0" linked on the CI result page supposed to indicat this 
always? Could you indicate in a more obvious way that "No display connected" on 
the results page?

The failure imo, is either due to a network connection issue (no WARNs, errors 
in the log, dmesg ending with a flood of 0 bytes read) or some GFX device DC6 
-> DC0 transition or some GFX GEM related issue, see more below. There are no 
pstore or other post-mortem logs available, so it's impossible to know the root 
cause for sure. Putting much more effort into making such logs available 
everywhere would be really appreciated.

The fact that the connection is lost while the system is active, so not around 
system suspend/resume (where network device failures were typical in the past) 
makes the likelihood of a network device failure lower.

I see the GFX device being in DC6 when the connection is lost, so it's possible 
the machine hangs when GFX is trying to exit to DC0.

A recent similar connection lost failure during a GEM/GT test on the same 
fi-kbl-guc machine is:
https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_154881v1/fi-kbl-guc/igt@i915_selftest@[email protected]

> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_155587v2 that come from known 
> issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@dmabuf@all-tests:
>     - bat-apl-1:          [PASS][3] -> [ABORT][4] ([i915#12904]) +1 other 
> test abort
>    [3]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17368/bat-apl-1/igt@[email protected]
>    [4]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/bat-apl-1/
> igt@[email protected]
> 
>   * igt@i915_selftest@live@late_gt_pm:
>     - fi-cfl-8109u:       [PASS][5] -> [DMESG-WARN][6] ([i915#13735]) +80 
> other tests dmesg-warn
>    [5]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17368/fi-cfl-8109u/igt@i915_selftest@live@late_gt_pm.html
>    [6]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/fi-cfl-810
> 9u/igt@i915_selftest@live@late_gt_pm.html
> 
>   * igt@i915_selftest@live@workarounds:
>     - bat-dg2-9:          [PASS][7] -> [DMESG-FAIL][8] ([i915#12061]) +1 
> other test dmesg-fail
>    [7]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17368/bat-dg2-9/igt@i915_selftest@[email protected]
>    [8]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/bat-dg2-9/igt@i915_selftest@[email protected]
>     - bat-arls-6:         [PASS][9] -> [DMESG-FAIL][10] ([i915#12061]) +1 
> other test dmesg-fail
>    [9]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17368/bat-arls-6/igt@i915_selftest@[email protected]
>    [10]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/bat-arls-6
> /igt@i915_selftest@[email protected]
> 
>   * igt@kms_pipe_crc_basic@read-crc:
>     - fi-cfl-8109u:       [PASS][11] -> [DMESG-WARN][12] ([i915#13735] / 
> [i915#13890]) +49 other tests dmesg-warn
>    [11]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_17368/fi-cfl-8109u/igt@[email protected]
>    [12]: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/fi-cfl-810
> 9u/igt@[email protected]
> 
>   
>   [i915#12061]: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12061
>   [i915#12904]: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/12904
>   [i915#13735]: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13735
>   [i915#13890]: 
> https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13890
> 
> 
> Build changes
> -------------
> 
>   * Linux: CI_DRM_17368 -> Patchwork_155587v2
> 
>   CI-20190529: 20190529
>   CI_DRM_17368: 69ca30df000b382e7657f300148be505083377f2 @ 
> git://anongit.freedesktop.org/gfx-ci/linux
>   IGT_8585: 8585
>   Patchwork_155587v2: 69ca30df000b382e7657f300148be505083377f2 @ 
> git://anongit.freedesktop.org/gfx-ci/linux
> 
> == Logs ==
> 
> For more details see: 
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_155587v2/index.html
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