Bug 103342

Summary: [CI] igt@kms_concurrent@pipe-[A|B|C]
Product: DRI Reporter: Marta Löfstedt <marta.lofstedt>
Component: DRM/IntelAssignee: Maarten Lankhorst <bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: critical    
Priority: highest CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: GLK i915 features: display/Other

Description Marta Löfstedt 2017-10-18 11:04:36 UTC 
CI_DRM_3255 GLK-shards igt@kms_concurrent@pipe-* fail:

(kms_concurrent:1472) igt-kms-CRITICAL: Test assertion failure function do_display_commit, file igt_kms.c:2681:
(kms_concurrent:1472) igt-kms-CRITICAL: Failed assertion: ret == 0
(kms_concurrent:1472) igt-kms-CRITICAL: Last errno: 22, Invalid argument
(kms_concurrent:1472) igt-kms-CRITICAL: error: -22 != 0
Subtest pipe-B failed.

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3255/shard-glkb1/igt@kms_concurrent@pipe-A.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3255/shard-glkb1/igt@kms_concurrent@pipe-B.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3255/shard-glkb5/igt@kms_concurrent@pipe-C.html
Comment 1 Martin Peres 2017-10-19 10:17:03 UTC 
Increasing the priority because it is only seen on GLK.
Comment 2 Maarten Lankhorst 2017-10-19 11:16:26 UTC 
Test failure, not a GLK failure. :)

std_1024_mode was allocated on the stack, which was overwritten by garbage. This only happened when no fallback modes were available. This is only the case on eDP, because it has a single mode only.

Fix:
https://patchwork.freedesktop.org/series/32287/
Comment 3 Jani Saarinen 2017-10-20 12:28:27 UTC 
author	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>	2017-10-19 11:05:26 committer	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>	2017-10-20 10:37:42 (GMT)
commit	65c7f9d6b47088d8e1e012721a93b294e60c42c7 (patch)

https://cgit.freedesktop.org/xorg/app/intel-gpu-tools/commit/?id=65c7f9d6b47088d8e1e012721a93b294e60c42c7
Comment 4 Marta Löfstedt 2017-10-23 09:33:54 UTC 
Fix integrated in CI_DRM_3270 the issue has not been reproduced

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