Also seen on cfl-u: https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_38/fi-cfl-u/igt@kms_plane_scaling@pipe-a-scaler-with-clipping-clamping.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_54/fi-cnl-psr/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-spr-indfb-fullscreen.html

[  227.738733] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[  227.801928] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks

Also seen on GLK:

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4270/shard-glk7/igt@kms_cursor_legacy@cursora-vs-flipa-toggle.html

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_4270/shard-glk7/igt@kms_vblank@pipe-a-wait-forked-busy-hang.html

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_109/fi-cnl-u/igt@kms_plane_scaling@pipe-c-scaler-with-clipping-clamping.html

[  409.093075] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun

A CI Bug Log filter associated to this bug has been updated:

{- GLK CFL WHL CNL: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun -}
{+ KBL GLK CFL WHL CNL: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun +}

New failures caught by the filter:

* https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5456/shard-kbl5/igt@kms_rotation_crc@multiplane-rotation-cropping-bottom.html

A CI Bug Log filter associated to this bug has been updated:

{- KBL GLK CFL WHL CNL: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun -}
{+ KBL GLK CFL WHL CNL CML: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_271/fi-cml-u2/igt@kms_rotation_crc@multiplane-rotation-cropping-bottom.html

A CI Bug Log filter associated to this bug has been updated:

{- KBL GLK CFL WHL CNL: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun -}
{+ KBL GLK CFL WHL CNL CML: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_271/fi-cml-u2/igt@kms_rotation_crc@multiplane-rotation-cropping-bottom.html

A CI Bug Log filter associated to this bug has been updated:

{- KBL GLK CFL WHL CNL: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun -}
{+ KBL GLK CFL WHL CNL CML: all tests - dmesg-warn / dmesg-fail - *ERROR* CPU pipe [ABC] FIFO underrun +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_271/fi-cml-u2/igt@kms_rotation_crc@multiplane-rotation-cropping-bottom.html

This dmesg pattern has been occurring for ages and does not appear to be localized to a specific test. Bug # 111201 suggests a possible work around and since the priority was set to medium I'm marking this one similarly.

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/intel/issues/95.