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<body><span class="vcard"><a class="email" href="mailto:hector.franciscox.velazquez.suriano@intel.com" title="Hector Velazquez <hector.franciscox.velazquez.suriano@intel.com>"> <span class="fn">Hector Velazquez</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - [IGT] [BXT-P/KBL/BSW/SKL/HSW] some kms_flip subtests causes [i915]] *ERROR* CPU pipe B/C FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96226">bug 96226</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">i915 platform</td>
<td>
</td>
<td>CNL
</td>
</tr></table>
<p>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [IGT] [BXT-P/KBL/BSW/SKL/HSW] some kms_flip subtests causes [i915]] *ERROR* CPU pipe B/C FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96226#c33">Comment # 33</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [IGT] [BXT-P/KBL/BSW/SKL/HSW] some kms_flip subtests causes [i915]] *ERROR* CPU pipe B/C FIFO underrun"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96226">bug 96226</a>
from <span class="vcard"><a class="email" href="mailto:hector.franciscox.velazquez.suriano@intel.com" title="Hector Velazquez <hector.franciscox.velazquez.suriano@intel.com>"> <span class="fn">Hector Velazquez</span></a>
</span></b>
<pre>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</pre>
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