Bug 100998

Summary:	[BAT][BLK] igt@gem_busy@basic-hang-default hanged on CI
Product:	DRI	Reporter:	Jani Saarinen <jani.saarinen>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	CLOSED WORKSFORME	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	normal
Priority:	medium	CC:	intel-gfx-bugs
Version:	DRI git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:	G33	i915 features:	GEM/Other

Description Jani Saarinen 2017-05-11 07:19:13 UTC

On CI igt@gem_busy@basic-hang-default was incompleted.

https://intel-gfx-ci.01.org/CI/CI_DRM_2602/fi-blk-e6850/igt@gem_busy@basic-hang-default.html

Dmesg: https://intel-gfx-ci.01.org/CI/CI_DRM_2602/fi-blk-e6850/dmesg-during.log

HW: 
fi-elk-e7500	HP Compaq 8000	Eagle Lake Core2Duo E7500	GMA4500	DP (VGA)

Documenting and mark to CI as known.

Comment 1 Chris Wilson 2017-05-11 07:23:41 UTC

Notice the loss of dmesg, and lost information as to what took the machine out.

How about if we mount the fs with sync?

Comment 2 Martin Peres 2017-06-15 11:27:16 UTC

Good idea Chris! Tomi will try to remount the filesystem with sync before running IGT.

I will close this bug for now, it used to happen every day, but we got no new occurence since May 24th!

Comment 3 Chris Wilson 2017-06-15 11:59:31 UTC

commit 48f1fc3a301d50c27c07a0fe73cd3a75d4f59552
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Mon May 22 12:02:44 2017 +0300

    drm/i915/g33: Improve reset reliability
    
    We improved the reset reliablity on gen4 with
    stopping all engines before commencing reset, in
    commit 2c80353f3cd0 ("drm/i915/g4x: Improve gpu reset reliability")
    
    Evidence indicates that this same trick works with g33.

Comment 4 Ricardo 2017-06-27 14:16:31 UTC

Closing bug since there is no new failures

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