[Bug 98041] New: [BAT][SKL] CPU pipe X fifo underrun

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98041

            Bug ID: 98041
           Summary: [BAT][SKL] CPU pipe X fifo underrun
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: tvrtko.ursulin at linux.intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Usual errors like:

[  520.080543] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU
pipe B FIFO underrun

Happening sporadically in BAT under tests like:

kms_pipe_crc_basic at hang-read-crc-pipe-a
kms_pipe_crc_basic at suspend-read-crc-pipe-a
kms_pipe_crc_basic at nonblocking-crc-pipe-b
pm_rpm at basic-rte

First found build in the CI matrix is CI_DRM_1645.

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