Bug 107932

Summary: [CI][SHARDS] igt@kms_plane@pixel-format-pipe-a-planes - fail - Failed assertion: !mismatch
Product: DRI Reporter: Martin Peres <martin.peres>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: RESOLVED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: SNB i915 features: display/Other

Description Martin Peres 2018-09-14 12:26:24 UTC 
Bug https://bugs.freedesktop.org/show_bug.cgi?id=107161 has mostly been fixed, aside from the following issue on SNB:

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4602/shard-snb3/igt@kms_plane@pixel-format-pipe-a-planes.html

(kms_plane:2398) igt_debugfs-CRITICAL: Test assertion failure function igt_assert_crc_equal, file ../lib/igt_debugfs.c:371:
(kms_plane:2398) igt_debugfs-CRITICAL: Failed assertion: !mismatch
Subtest pixel-format-pipe-A-planes failed.
Comment 1 Matt Roper 2019-09-19 21:54:08 UTC 
Failures from this test stopped happening about 11 months, 2 weeks ago.  I believe this upstream patch is what fixed the issue:

commit 8e7a4424b996ab780b4cb4a4564f31e079e55711
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Thu Oct 4 15:15:27 2018 +0300

    drm/i915: Fix ILK-IVB sprite enable delays

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