Bug 105340

Summary:	[CI] igt@kms_* - dmesg-warn - ERROR CPU pipe A FIFO underrun
Product:	DRI	Reporter:	Marta Löfstedt <marta.lofstedt>
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:	high	CC:	intel-gfx-bugs
Version:	DRI git
Hardware:	Other
OS:	All
Whiteboard:	ReadyForDev
i915 platform:	GLK	i915 features:	display/Other
Bug Depends on:
Bug Blocks:	105980

Description Marta Löfstedt 2018-03-05 06:30:13 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4321/shard-glkb3/igt@kms_vblank@pipe-a-ts-continuation-modeset-hang.html

<7>[  211.047130] [drm:intel_fbc_enable [i915]] Enabling FBC on pipe A
<3>[  211.047229] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
<7>[  211.047690] [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to FIFO underrun.

Comment 1 Marta Löfstedt 2018-03-06 06:59:26 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4328/shard-glkb3/igt@kms_flip@dpms-off-confusion.html

<3>[  273.362010] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

Comment 2 Marta Löfstedt 2018-03-26 12:49:23 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_7/fi-glk-1/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html

[  224.620253] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

Comment 3 Martin Peres 2018-04-20 14:19:33 UTC

Last seen on CI_DRM_3877 (1 month, 2 weeks / 377 runs ago). Closing!

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