Bug 104491 - [BAT][GLK only] igt@kms_cursor_legacy@basic-flip-before-cursor-varying-size - *ERROR* CPU pipe A FIFO underrun
Summary: [BAT][GLK only] igt@kms_cursor_legacy@basic-flip-before-cursor-varying-size -...
Status: CLOSED WORKSFORME
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-01-04 13:45 UTC by Marta Löfstedt
Modified: 2018-02-09 07:15 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments

Description Marta Löfstedt 2018-01-04 13:45:34 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4113/shard-glkb4/igt@kms_cursor_legacy@basic-flip-before-cursor-varying-size.html

<7>[40087.920681] [IGT] kms_cursor_legacy: starting subtest basic-flip-before-cursor-varying-size
<7>[40087.920973] [drm:drm_mode_addfb2] [FB:98]
<7>[40087.933596] [drm:gen8_irq_handler [i915]] hotplug event received, stat 0x00000008, dig 0x1a001818, pins 0x00000010
<7>[40087.933639] [drm:intel_hpd_irq_handler [i915]] digital hpd port A - long
<7>[40087.933676] [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN 4 - cnt: 1
<7>[40087.933777] [drm:intel_dp_hpd_pulse [i915]] ignoring long hpd on eDP port A
<3>[40087.934420] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
<7>[40087.934968] [drm:intel_fbc_underrun_work_fn [i915]] Disabling FBC due to FIFO underrun.
Comment 1 Jani Nikula 2018-01-24 12:18:44 UTC
Is this reproducible when booting with nvme_core.default_ps_max_latency_us=0 module parameter?
Comment 2 Marta Löfstedt 2018-01-24 12:29:25 UTC
(In reply to Jani Nikula from comment #1)
> Is this reproducible when booting with nvme_core.default_ps_max_latency_us=0
> module parameter?

This has so far happened 1/121 runs, so I don't think changing to nvme_core.default_ps_max_latency_us=0 will give any noticable effect.
Comment 3 Marta Löfstedt 2018-02-09 07:15:32 UTC
Last seen IGT_4113: 2018-01-04 / 230 runs ago


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