linux-kernel - Re: Kunit drm_test_check_plane_state: EXPECTATION FAILED at drivers/gpu/drm/tests/drm_plane_helper

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Date:   Tue, 5 Dec 2023 09:37:05 +0100
From:   Maxime Ripard <mripard@...nel.org>
To:     Naresh Kamboju <naresh.kamboju@...aro.org>
Cc:     kunit-dev@...glegroups.com, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, lkft-triage@...ts.linaro.org,
        regressions@...ts.linux.dev, davidgow@...gle.com,
        dan.carpenter@...aro.org, maarten.lankhorst@...ux.intel.com,
        tzimmermann@...e.de, airlied@...il.com, daniel@...ll.ch,
        Linux Kernel Functional Testing <lkft@...aro.org>
Subject: Re: Kunit drm_test_check_plane_state: EXPECTATION FAILED at
 drivers/gpu/drm/tests/drm_plane_helper_test.c:123

Hi Naresh,

Thanks for the report

On Mon, Dec 04, 2023 at 11:05:36PM +0530, Naresh Kamboju wrote:
> The Kunit drm_plane_helper failed on all devices running Linux next-20231204
> 
> ## Test Regressions (compared to next-20231201)
> * qemu-armv7, kunit and
> * x86, kunit
>   - drm_test_check_invalid_plane_state_downscaling_invalid
>   - drm_test_check_invalid_plane_state_drm_plane_helper
>   - drm_test_check_invalid_plane_state_drm_test_check_invalid_plane_state
>   - drm_test_check_invalid_plane_state_positioning_invalid
>   - drm_test_check_invalid_plane_state_upscaling_invalid
>   - drm_test_check_plane_state_clipping_rotate_reflect
>   - drm_test_check_plane_state_clipping_simple
>   - drm_test_check_plane_state_downscaling
>   - drm_test_check_plane_state_drm_test_check_plane_state
>   - drm_test_check_plane_state_positioning_simple
>   - drm_test_check_plane_state_rounding1
>   - drm_test_check_plane_state_rounding2
>   - drm_test_check_plane_state_rounding3
>   - drm_test_check_plane_state_rounding4
>   - drm_test_check_plane_state_upscaling

I found the source of failure to be f1e75da5364e ("drm/atomic: Loosen FB
atomic checks").

Fortunately for us, it's already been reverted yesterday for some
unrelated reason, so it should be fixed in next-20231205 onward.

Maxime

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