[Bug 105493] New: [IGT] kms_cursor_crc subtest cursor-256x256-rapid-movement has a dmesg warn *ERROR* CPU pipe A FIFO underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105493

            Bug ID: 105493
           Summary: [IGT] kms_cursor_crc subtest
                    cursor-256x256-rapid-movement has a dmesg warn *ERROR*
                    CPU pipe A FIFO underrun
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: hector.franciscox.velazquez.suriano at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 138079
  --> https://bugs.freedesktop.org/attachment.cgi?id=138079&action=edit
dmesg -w -H

This test has dmesg-warn on CNL QA

Test List

igt at kms_cursor_crc@cursor-256x256-rapid-movement

======================================
        output
======================================
- - -
======================================
        dmesg-warn sample
======================================
. . .
[  +0.000069] [drm:audio_config_hdmi_pixel_clock [i915]] Configuring HDMI audio
for pixel clock 25200 (0x00010000)
[  +0.000066] [drm:hsw_audio_config_update [i915]] using automatic N
[  +0.014382] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe
A FIFO underrun
[  +0.002288] [drm:verify_connector_state.isra.115 [i915]]
[CONNECTOR:101:eDP-1]
[  +0.000072] [drm:intel_atomic_commit_tail [i915]] [CRTC:51:pipe A]
[  +0.000076] [drm:verify_single_dpll_state.isra.116 [i915]] DPLL 0
[  +0.000084] [drm:verify_connector_state.isra.115 [i915]]
[CONNECTOR:115:HDMI-A-1]
[  +0.000065] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe
B FIFO underrun
[  +0.000050] [drm:intel_atomic_commit_tail [i915]] [CRTC:75:pipe B]
[  +0.000068] [drm:verify_single_dpll_state.isra.116 [i915]] DPLL 1
[  +0.000037] [drm:drm_atomic_state_default_clear] Clearing atomic state
000000007be4b269
. . .
======================================
        Graphic stack
======================================

======================================
             Software
======================================
kernel version              : 4.16.0-rc5-drm-tip-ww11-commit-874b86a+
os version                  : Ubuntu 17.10 artful x86_64
kernel driver               : i915
hardware acceleration       : disabled
swap partition              : enabled on (/dev/nvme0n1p2)
======================================
        Graphic drivers
======================================
modesetting                 : enabled
modesetting compiled for    : 1.19.5 X.Org Video Driver
libdrm                      : 2.4.91
intel-gpu-tools (tag)       : intel-gpu-tools-1.21-208-g89b915f5
intel-gpu-tools (commit)    : 89b915f5
======================================
             Hardware
======================================
motherboard id             : CannonLakeYLPDDR4RVP
cpu information            : Genuine Intel(R) CPU 0000 @ 1.10GHz
gpu card                   : Intel Corporation Device 5a41 (rev 04) (prog-if 00
[VGA controller])
memory ram                 : 7.63 GB
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               : 1.7
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 drm.debug=0x1e intel_iommu=igfx_off auto panic=1 nmi_watchdog=panic
fsck.repair=yes i915.error_capture=yes i915.alpha_support=1
resume=/dev/nvme0n1p2 fastboot

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