[Bug 82602] [SNB/BYT/BSW Regression]igt/kms_cursor_crc/cursor-256-sliding causes "[drm:display_pipe_crc_irq_handler] *ERROR* spurious interrupt"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82602

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[SNB/BSW                    |[SNB/BYT/BSW
                   |Regression]igt/kms_cursor_c |Regression]igt/kms_cursor_c
                   |rc/cursor-256-sliding       |rc/cursor-256-sliding
                   |causes                      |causes
                   |"[drm:display_pipe_crc_irq_ |"[drm:display_pipe_crc_irq_
                   |handler] *ERROR* spurious   |handler] *ERROR* spurious
                   |interrupt"                  |interrupt"

--- Comment #3 from Guo Jinxian <jinxianx.guo at intel.com> ---
The failure is able to reproduce on latest
-nightly(3e5e5913a80f593aa8f67784220eac2658034c6c) on BYT, but the dmesg error
unable to reproduce.

root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_cursor_crc
--run-subtest cursor-256-onscreen
IGT-Version: 1.8-g5053446 (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_3e5e59_20140918+ x86_64)
Beginning cursor-256-onscreen on pipe A, connector eDP-1
....................Test assertion failure function do_single_test, file
kms_cursor_crc.c:123:
Failed assertion: igt_crc_equal(&crc, &ref_crc)
Subtest cursor-256-onscreen: FAIL (52.144s)
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm                
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#

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