On Mon, May 03, 2021 at 07:54:55PM -0000, Patchwork wrote:
> == Series Details ==
>
> Series: series starting with [v2,1/2] drm/i915: Don't include intel_de.h from
> intel_display_types.h (rev2)
> URL : https://patchwork.freedesktop.org/series/89698/
> State : failure
>
> == Summary ==
>
> CI Bug Log - changes from CI_DRM_10039 -> Patchwork_20053
> ====================================================
>
> Summary
> -------
>
> **FAILURE**
>
> Serious unknown changes coming with Patchwork_20053 absolutely need to be
> verified manually.
>
> If you think the reported changes have nothing to do with the changes
> introduced in Patchwork_20053, 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/Patchwork_20053/index.html
>
> Possible new issues
> -------------------
>
> Here are the unknown changes that may have been introduced in
> Patchwork_20053:
>
> ### IGT changes ###
>
> #### Possible regressions ####
>
> * igt@i915_selftest@live@blt:
> - fi-bdw-5557u: [PASS][1] -> [INCOMPLETE][2]
> [1]:
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_10039/fi-bdw-5557u/igt@i915_selftest@[email protected]
> [2]:
> https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_20053/fi-bdw-5557u/igt@i915_selftest@[email protected]
<4> [276.958769] WARNING: CPU: 0 PID: 358 at kernel/workqueue.c:1418
__queue_work+0x2d2/0x620
...
<4> [276.959009] queue_work_on+0x68/0x80
<4> [276.959016] node_free+0x43/0x60 [i915]
<4> [276.959140] pool_free_older_than+0x132/0x170 [i915]
<4> [276.959270] pool_free_work+0x12/0x40 [i915]
<4> [276.959395] process_one_work+0x270/0x5c0
<4> [276.959407] worker_thread+0x37/0x380
Which is
/* if draining, only works from the same workqueue are allowed */
if (unlikely(wq->flags & __WQ_DRAINING) &&
WARN_ON_ONCE(!is_chained_work(wq)))
return;
Based on a cursory glance the queue_work is probably coming from
i915_gem_free_object() -> queue_work(i915->wq, &i915->mm.free_work);
So looks like i915_gem_drain_workqueue() is broken.
Entirely unrelated to this patch series.
--
Ville Syrjälä
Intel
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