Bug 110870

Summary:	[CI][SHARDS] igt@kms_mmap_write_crc@main - fail - Failed assertion: !mismatch
Product:	DRI	Reporter:	Martin Peres <martin.peres>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	RESOLVED WORKSFORME	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	normal
Priority:	high	CC:	intel-gfx-bugs
Version:	XOrg git
Hardware:	Other
OS:	All
Whiteboard:	ReadyForDev
i915 platform:	SKL	i915 features:	display/Other, GEM/Other

Description Martin Peres 2019-06-10 08:27:27 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6211/shard-skl8/igt@kms_mmap_write_crc@main.html

Starting subtest: main
(kms_mmap_write_crc:2939) igt_debugfs-CRITICAL: Test assertion failure function igt_assert_crc_equal, file ../lib/igt_debugfs.c:419:
(kms_mmap_write_crc:2939) igt_debugfs-CRITICAL: Failed assertion: !mismatch

Comment 1 Martin Peres 2019-06-10 08:28:35 UTC

Adding GEM here since there were changes recently with regards to local memory which could explain the mismatch!

Comment 2 CI Bug Log 2019-06-10 08:30:38 UTC

The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* SKL: igt@kms_mmap_write_crc@main - fail - Failed assertion: !mismatch
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_13186/shard-skl1/igt@kms_mmap_write_crc@main.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4392/shard-skl3/igt@kms_mmap_write_crc@main.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6200/shard-skl2/igt@kms_mmap_write_crc@main.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6202/shard-skl6/igt@kms_mmap_write_crc@main.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_13185/shard-skl6/igt@kms_mmap_write_crc@main.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6211/shard-skl8/igt@kms_mmap_write_crc@main.html

Comment 3 Francesco Balestrieri 2019-07-30 04:35:24 UTC

Matt, do you see anything in the local memory code that could have affected this?

Martin, is there something specific you suspect in the lmem code?

BTW the logs at https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6211/shard-skl8/igt@kms_mmap_write_crc@main.html are no longer accessible (404)

Comment 4 Lakshmi 2019-07-30 08:29:15 UTC

(In reply to Francesco Balestrieri from comment #3)
> Matt, do you see anything in the local memory code that could have affected
> this?
> 
> Martin, is there something specific you suspect in the lmem code?
> 
> BTW the logs at
> https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6211/shard-skl8/
> igt@kms_mmap_write_crc@main.html are no longer accessible (404)

Reproduction rate of this failure is once in 5.75 runs. Last seen on CI_DRM_6223_full and current run is CI_DRM_6576.

Closing this issue as WORKSFORME.

Comment 5 CI Bug Log 2019-07-30 08:29:22 UTC

The CI Bug Log issue associated to this bug has been archived.

New failures matching the above filters will not be associated to this bug anymore.

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