FYI, we noticed the below changes on
git://anongit.freedesktop.org/drm-intel drm-intel-next-queued
commit 396e33ae204f52abebec9e578f44c749305500f4 ("drm/i915: Add two-stage ILK-style
watermark programming (v10)")
+--------------------------------------------------+------------+------------+
| | 2dfb0b816d | 396e33ae20 |
+--------------------------------------------------+------------+------------+
| boot_successes | 8 | 19 |
| boot_failures | 0 | 4 |
| drm:intel_set_cpu_fifo_underrun_reporting[i915]] | 0 | 4 |
| drm:intel_cpu_fifo_underrun_irq_handler[i915]] | 0 | 4 |
| drm:intel_set_pch_fifo_underrun_reporting[i915]] | 0 | 4 |
| drm:intel_pch_fifo_underrun_irq_handler[i915]] | 0 | 4 |
+--------------------------------------------------+------------+------------+
[ 36.077826] NFS: Registering the id_resolver key type
[ 36.078178] Key type id_resolver registered
[ 36.078444] Key type id_legacy registered
[ 60.884026] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo
underrun on pipe B
[ 60.884659] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
[ 60.885221] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch
fifo underrun on pch transcoder B
[ 60.885887] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B
FIFO underrun
[ 61.180651] random: nonblocking pool is initialized
[ 81.430503] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo
underrun on pipe C
[ 81.431193] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe C FIFO
underrun
[ 81.431782] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch
fifo underrun on pch transcoder C
[ 81.432474] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder 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,
Kernel Test Robot