Bug 99743

Summary:	[SNB][BAT] igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a hangs on CI on SNB-2600
Product:	DRI	Reporter:	Jani Saarinen <jani.saarinen>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	CLOSED INVALID	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	minor
Priority:	low	CC:	intel-gfx-bugs
Version:	DRI git
Hardware:	Other
OS:	All
See Also:	https://bugs.freedesktop.org/show_bug.cgi?id=99837
Whiteboard:
i915 platform:	SNB	i915 features:

Description Jani Saarinen 2017-02-09 19:39:46 UTC

See error: 
https://intel-gfx-ci.01.org/CI/CI_DRM_2156/fi-snb-2600/igt@kms_pipe_crc_basic@suspend-read-crc-pipe-a.html

and dmesg:
https://intel-gfx-ci.01.org/CI/CI_DRM_2156/fi-snb-2600/dmesg-during.log

Comment 1 Ricardo 2017-02-14 15:03:41 UTC

Raising importance based on BAT results

Comment 2 Ricardo 2017-02-14 15:13:56 UTC

Looking at the results from igt fast drm-tip 4.10.0-rc8 6f8a1e0 SNB the test passes in the QA side reported in today's FastFeedback

Comment 3 Ricardo 2017-02-14 15:28:12 UTC

lowering again... the test seems fail on a sequential runs

Comment 4 Marta Löfstedt 2017-03-03 07:52:17 UTC

last line in dmesg:
[  353.691361] [IGT] kms_pipe_crc_basic: starting subtest suspend-read-crc-pipe-A

I.e. this is one of the busg where we have lost contact with the DUT during suspend-resume and can't get any information on what that has happened.
We are working on a solution to use pstore to maybe get more information when this happens.

I set lower importance

Comment 5 Marta Löfstedt 2017-03-03 08:26:39 UTC

Move to staging?

Comment 6 Jani Saarinen 2017-03-27 11:19:34 UTC

One occurrence only and data missing to properly debug.
Will be re-opened when reoccurres.

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