Re: ✗ Xe.CI.Full: failure for Maintenence of devcoredump <-> GuC-Err-Capture plumbing

[Teres Alexis, Alan Previn]

On Wed, 2025-01-29 at 12:54 +0000, Patchwork wrote:
> Patch Details
> Series: Maintenence of devcoredump <-> GuC-Err-Capture plumbing URL: https://patchwork.freedesktop.org/series/144050/
> State: failure Details: https://intel-gfx-ci.01.org/tree/intel-xe/xe-pw-144050v1/index.html 
> CI Bug Log - changes from xe-2566-20759526c04a7f776f477bee66300dae33b51872_full -> xe-pw-144050v1_fullSummaryFAILURE
> Serious unknown changes coming with xe-pw-144050v1_full absolutely need to be
>  verified manually.
> If you think the reported changes have nothing to do with the changes
>  introduced in xe-pw-144050v1_full, please notify your bug team (I915-ci-infra at 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 issuesHere are the unknown changes that may have been introduced in xe-pw-144050v1_full:
> IGT changesPossible regressions * igt at kms_flip_scaled_crc@flip-64bpp-xtile-to-32bpp-xtile-downscaling:shard-dg2-set2:
> NOTRUN -> INCOMPLETE +1 other test incomplete
>  * igt at kms_frontbuffer_tracking@fbc-shrfb-scaledprimary:shard-adlp: PASS -> DMESG-WARN +2 other tests dmesg-warn
>  * igt at kms_plane_lowres@tiling-4:shard-dg2-set2: PASS -> DMESG-WARN +4 other tests dmesg-warn
>  * igt at kms_pm_rpm@universal-planes:shard-lnl: PASS -> INCOMPLETE +1 other test incomplete
>  * igt at xe_exec_reset@gt-reset-stress:shard-lnl: PASS -> DMESG-WARN
>  * igt at xe_wedged@wedged-at-any-timeout:shard-bmg: PASS -> DMESG-WARN

alan: Went through the 5 possible-regressions above and i believe the first 3 are unrelated to this series.
However, the last 2 seems to be triggered because I added the following line when we were attempting a
xe_hw_engine_snapshot but neither a GuC-generated nor a manual dump was available. That said i am
not sure if this is an issue with surrounding code or if i should just change this code to a xe_gt_dbg
(instead of warn). I think the latter (or complete ommision) makes sense for the wedged case. Will
investigate on the former.

	xe_gt_warn(hwe->gt, "Can't retrieve any GuC-Err-Capture node");

> Known issuesHere are the changes found in xe-pw-144050v1_full that come from known issues:
> 
alan:snip