linux-kernel - [lkp] [drm/i915] 43d59eda1f: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun

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Date:	Mon, 02 Nov 2015 16:07:12 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Matt Roper <matthew.d.roper@...el.com>
CC:	Daniel Vetter <daniel.vetter@...ll.ch>
Subject: [lkp] [drm/i915] 43d59eda1f:
 [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
 underrun

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 43d59eda1f69631c267e06ab6b94ed3c14f1f6d1 ("drm/i915: Eliminate usage of plane_wm_parameters from ILK-style WM code (v2)")


<5>[   21.603601] NFS: Registering the id_resolver key type
<5>[   21.610826] Key type id_resolver registered
<5>[   21.617134] Key type id_legacy registered
<3>[   42.831860] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
<5>[   43.548257] random: nonblocking pool is initialized
<3>[   57.488613] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO underrun


To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Ying Huang

View attachment "config-4.3.0-rc3-00348-g43d59ed" of type "text/plain" (141579 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (21264 bytes)

View attachment "job.yaml" of type "text/plain" (2862 bytes)

View attachment "reproduce" of type "text/plain" (133 bytes)