Re: ✗ CI.FULL: failure for drm/i915/dmc: Test Xe2LPD DMC v2.23

[Gustavo Sousa <gustavo.sousa@intel.com>]

Quoting Patchwork (2024-11-06 16:02:27-03:00)
>== Series Details ==
>
>Series: drm/i915/dmc: Test Xe2LPD DMC v2.23
>URL   : https://patchwork.freedesktop.org/series/140943/
>State : failure
>
>== Summary ==
>
>CI Bug Log - changes from xe-2167-0f5cd39d188cbedacf9e764749b65a328d33c8ea_full -> xe-pw-140943v1_full
>====================================================
>
>Summary
>-------
>
>  **FAILURE**
>
>  Serious unknown changes coming with xe-pw-140943v1_full absolutely need to be
>  verified manually.
>  
>  If you think the reported changes have nothing to do with the changes
>  introduced in xe-pw-140943v1_full, please notify your bug team (I915-ci-infra@lists.freedesktop.org) to allow them
>  to document this new failure mode, which will reduce false positives in CI.
>
>  
>
>Participating hosts (4 -> 4)
>------------------------------
>
>  No changes in participating hosts
>
>Possible new issues
>-------------------
>
>  Here are the unknown changes that may have been introduced in xe-pw-140943v1_full:
>
>### IGT changes ###
>
>#### Possible regressions ####
>
>  * igt@kms_color@ctm-signed@pipe-c-edp-1:
>    - shard-lnl:          [PASS][1] -> [DMESG-WARN][2]
>   [1]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-2167-0f5cd39d188cbedacf9e764749b65a328d33c8ea/shard-lnl-7/igt@kms_color@ctm-signed@pipe-c-edp-1.html
>   [2]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-pw-140943v1/shard-lnl-8/igt@kms_color@ctm-signed@pipe-c-edp-1.html

This does not seem related to the new DMC. Here are some other occurrences
that seem not to be captured by CI Bug log yet:

    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2167-0f5cd39d188cbedacf9e764749b65a328d33c8ea/shard-lnl-3/igt@kms_color@deep-color@pipe-a-edp-1-ctm.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2160-a4532bcf5eea0cfdb56fbdc3195a2d15d193727b/re-lnl-5/igt@kms_color@legacy-gamma@pipe-a-dp-1.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2159-0a6cc4357ae4d824f909468ca1deed28ae5ac96f/shard-lnl-3/igt@kms_color@deep-color@pipe-c-edp-1-ctm.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2152-9c4962db90300e1d8daca8ed54195bc31d0ee932/re-lnl-4/igt@kms_color@ctm-blue-to-red@pipe-a-edp-1.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2152-9c4962db90300e1d8daca8ed54195bc31d0ee932/re-lnl-4/igt@kms_color@ctm-blue-to-red.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@legacy-gamma@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@legacy-gamma@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-signed@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-signed@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-red-to-blue@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-red-to-blue@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-negative@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-max@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-max@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-0-75@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-0-50@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-0-50@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-0-25@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2147-c245557007af0a1c23da00c47732ae1dadda7dd3/re-lnl-4/igt@kms_color@ctm-0-25@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2144-fb992a15d9b3dc0ed1395b1a30a27f50fb8dba63/shard-lnl-3/igt@kms_color@ctm-negative@pipe-c-edp-1.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@legacy-gamma@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@legacy-gamma@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-signed@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-red-to-blue@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-red-to-blue@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-max@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-max@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-0-75@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-0-50@pipe-a-dp-5.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-0-50@pipe-a-dp-4.html
    https://intel-gfx-ci.01.org/tree/intel-xe/xe-2140-b97473387ce132222c9b71f7cf39c2cd814cbb6f/re-lnl-4/igt@kms_color@ctm-0-25@pipe-a-dp-5.html

>
>  * igt@kms_flip@plain-flip-ts-check-interruptible@d-hdmi-a3:
>    - shard-bmg:          [PASS][3] -> [INCOMPLETE][4]
>   [3]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-2167-0f5cd39d188cbedacf9e764749b65a328d33c8ea/shard-bmg-4/igt@kms_flip@plain-flip-ts-check-interruptible@d-hdmi-a3.html
>   [4]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-pw-140943v1/shard-bmg-8/igt@kms_flip@plain-flip-ts-check-interruptible@d-hdmi-a3.html
>
>  * igt@kms_pm_dc@dc5-retention-flops:
>    - shard-dg2-set2:     NOTRUN -> [SKIP][5]
>   [5]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-pw-140943v1/shard-dg2-434/igt@kms_pm_dc@dc5-retention-flops.html

Those two are unrelated, since the new DMC applies only to LNL.

>  * igt@xe_wedged@wedged-mode-toggle:
>    - shard-lnl:          [PASS][6] -> [ABORT][7]
>   [6]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-2167-0f5cd39d188cbedacf9e764749b65a328d33c8ea/shard-lnl-5/igt@xe_wedged@wedged-mode-toggle.html
>   [7]: https://intel-gfx-ci.01.org/tree/intel-xe/xe-pw-140943v1/shard-lnl-6/igt@xe_wedged@wedged-mode-toggle.html

Null pointer dereferencing happening in devcoredump path, not related to the new DMC.

--
Gustavo Sousa