Bug 107815 - [CI][SHARDS] igt@kms_* - fail - Failed assertion: !mismatch
Summary: [CI][SHARDS] igt@kms_* - fail - Failed assertion: !mismatch
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: high normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-03 15:23 UTC by Martin Peres
Modified: 2019-09-03 23:54 UTC (History)
2 users (show)

See Also:
i915 platform: BYT, SKL
i915 features: display/Other


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Description Martin Peres 2018-09-03 15:23:52 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_100/fi-byt-clapper/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-legacy.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_97/fi-byt-clapper/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-legacy.html
	
(kms_cursor_legacy:2493) igt_debugfs-CRITICAL: Test assertion failure function igt_assert_crc_equal, file ../lib/igt_debugfs.c:371:
(kms_cursor_legacy:2493) igt_debugfs-CRITICAL: Failed assertion: !mismatch
(kms_cursor_legacy:2493) igt_debugfs-CRITICAL: Last errno: 25, Inappropriate ioctl for device
Subtest flip-vs-cursor-busy-crc-legacy failed.


https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_99/fi-byt-clapper/igt@kms_atomic_transition@1x-modeset-transitions-nonblocking.html

(kms_atomic_transition:1343) igt_debugfs-CRITICAL: Test assertion failure function igt_assert_crc_equal, file ../lib/igt_debugfs.c:371:
(kms_atomic_transition:1343) igt_debugfs-CRITICAL: Failed assertion: !mismatch
(kms_atomic_transition:1343) igt_debugfs-CRITICAL: Last errno: 25, Inappropriate ioctl for device
Subtest 1x-modeset-transitions-nonblocking failed.(km
Comment 1 Martin Peres 2018-10-16 15:10:02 UTC
Also seen on SKL: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4984/shard-skl6/igt@kms_atomic_transition@1x-modeset-transitions.html

Starting subtest: 1x-modeset-transitions
(kms_atomic_transition:1239) igt_debugfs-CRITICAL: Test assertion failure function igt_assert_crc_equal, file ../lib/igt_debugfs.c:392:
(kms_atomic_transition:1239) igt_debugfs-CRITICAL: Failed assertion: !mismatch
(kms_atomic_transition:1239) igt_debugfs-CRITICAL: Last errno: 25, Inappropriate ioctl for device
Subtest 1x-modeset-transitions failed.
Comment 2 CI Bug Log 2019-04-10 13:32:34 UTC
A CI Bug Log filter associated to this bug has been updated:

{- BYT SKL: all tests - fail - Failed assertion: !mismatch, Last errno: 25, Inappropriate ioctl for device -}
{+ BYT SKL: all tests - fail - Failed assertion: !mismatch +}

 No new failures caught with the new filter
Comment 3 Matt Roper 2019-09-03 23:54:53 UTC
We should probably update the CIbuglog filter for this defect; there are some seemingly legitimate CRC mismatches here, but they're lost in the noise due to a huge number of hits for kms_plane_alpha_blend on gen9.  Due to a hardware defect in plane blending, those blending tests are expected to fail on all gen9 platforms.

It might be worth adding some kind of debugfs node that indicates whether plane blending is broken; kms_plane_alpha_blend could use that as a hint on whether to skip those tests or not.


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