[Bug 96226] [IGT] [BXT-P/KBL/BSW/SKL/HSW] some kms_flip subtests causes [i915]] *ERROR* CPU pipe B/C FIFO underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96226

Hector Velazquez <hector.franciscox.velazquez.suriano at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      i915 platform|                            |CNL

--- Comment #33 from Hector Velazquez <hector.franciscox.velazquez.suriano at intel.com> ---
This tests are failing with a dmesg warn on CNL QA...

kms_flip@*
check attached file to see the test list (kms_flip_tests)

====================================================
output sample
====================================================

[  923.510627] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  923.694409] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  923.777483] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  923.828059] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  923.844759] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  923.911140] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.145032] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.162210] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.278705] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.345516] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.362686] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.379553] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.513060] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.529760] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.579880] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.596590] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.630004] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.696846] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.713548] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.730258] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.746954] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.763670] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  924.947010] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  925.064399] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun
[  925.081177] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe C FIFO underrun



This is my configuration:

======================================
             Software
======================================
kernel version              : 4.15.0-rc4-drm-tip-ww51-commit-cd7e144+
hostname                    : gfx-desktop
architecture                : x86_64
os version                  : Ubuntu 17.04
os codename                 : zesty
kernel driver               : i915
bios revision               : 114.4
bios release date           : 11/30/2017
ksc                         : 1.33
hardware acceleration       : enabled
swap partition              : enabled on (/dev/nvme0n1p2)

======================================
        Graphic drivers
======================================
mesa                        : 17.4.0-devel (git-8d00e63ca8
modesetting                 : enabled
modesetting compiled for    : 1.19.99.1 X.Org Video Driver
libdrm                      : 2.4.89
cairo                       : 1.15.11
intel-gpu-tools (tag)       : intel-gpu-tools-1.20-232-gc0be3310
intel-gpu-tools (commit)    : c0be3310

======================================
             Hardware
======================================
motherboard model          : CannonLakeClientPlatform
motherboard id             : CannonLakeYLPDDR4RVP
form factor                : Laptop
manufacturer               : IntelCorporation
cpu family                 : Other
cpu family id              : 6
cpu information            : Genuine Intel(R) CPU 0000 @ 1.00GHz
gpu card                   : Intel Corporation Device 5a49 (rev 03) (prog-if 00
[VGA controller])
memory ram                 : 7.61 GB
max memory ram             : 8 GB
display resolution         : 4480x1440
cpu thread                 : 4
cpu core                   : 2
cpu model                  : 102
cpu stepping               : 2
socket                     : Other
current cd clock frequency : 336000 kHz
maximum cd clock frequency : 528000 kHz
displays connected         : eDP-1 HDMI-A-1

======================================
             Firmware
======================================
dmc fw loaded             : yes
dmc version               : 1.6
guc fw loaded             : fetch NONE, load NONE
guc version wanted        : wanted 0.0, found 0.0
guc version found         : wanted 0.0, found 0.0

======================================
             kernel parameters
======================================
quiet splash drm.debug=0xe i915.alpha_support=1 resume=/dev/nvme0n1p2

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