drm-ci: rk3288-veyron-jaq: kms_flip at flip-vs-absolute-wf_vblank flake

[Vignesh Raman]

Hi Maintainers,

There are some flake test reported for rockchip driver testing in drm-ci.

# Board Name: rk3288-veyron-jaq
# Failure Rate: 40
# IGT Version: 2.1-g26ddb59c1
# Linux Version: 6.16.0-rc2
kms_flip at flip-vs-absolute-wf_vblank

command: cd "/igt/libexec/igt-gpu-tools" && 
"/igt/libexec/igt-gpu-tools/kms_flip" "--run-subtest" 
"flip-vs-absolute-wf_vblank"
pid: 602
exit status: exit status: 98
stdout:
-------
IGT-Version: 2.1-g26ddb59c1 (arm) (Linux: 6.16.0-rc2-g0594d0b01a7c armv7l)
Using IGT_SRANDOM=1751854095 for randomisation
Opened device: /dev/dri/card1
Using monotonic timestamps
Starting subtest: flip-vs-absolute-wf_vblank
Starting dynamic subtest: A-eDP1
   1366x768: 58 74250 1366 1502 1532 1592 768 776 788 800 0x48 0xa
Expected frametime: 17153us; measured 17157.9us +- 49.751us accuracy 0.87%
Stack trace:
Dynamic subtest A-eDP1: FAIL (0.732s)
Starting dynamic subtest: B-eDP1
   1366x768: 58 74250 1366 1502 1532 1592 768 776 788 800 0x48 0xa
Expected frametime: 17153us; measured 17155.1us +- 28.001us accuracy 0.49%
Event flip: expected 879, counted 880, passrate = 100.00%, encoder type 2
Event vblank: expected 879, counted 880, passrate = 100.00%, encoder type 2
Dynamic subtest B-eDP1: SUCCESS (15.797s)
Subtest flip-vs-absolute-wf_vblank: FAIL (16.557s)
stderr:
-------
(kms_flip:602) CRITICAL: Test assertion failure function calibrate_ts, 
file ../tests/kms_flip.c:1455:
(kms_flip:602) CRITICAL: Failed assertion: 3 * stddev / mean < 0.005
Dynamic subtest A-eDP1 failed.
**** DEBUG ****
(kms_flip:602) igt_fb-DEBUG: igt_create_fb_with_bo_size(width=1366, 
height=768, format=XR24(0x34325258), modifier=0x0, size=0)
(kms_flip:602) igt_fb-DEBUG: igt_create_fb_with_bo_size(handle=1, 
pitch=5504)
(kms_flip:602) ioctl_wrappers-DEBUG: Test requirement passed: 
igt_has_fb_modifiers(fd)
(kms_flip:602) igt_fb-DEBUG: igt_create_fb_with_bo_size(width=1366, 
height=768, format=XR24(0x34325258), modifier=0x0, size=0)
(kms_flip:602) igt_fb-DEBUG: igt_create_fb_with_bo_size(handle=2, 
pitch=5504)
(kms_flip:602) ioctl_wrappers-DEBUG: Test requirement passed: 
igt_has_fb_modifiers(fd)
(kms_flip:602) igt_fb-DEBUG: Test requirement passed: 
cairo_surface_status(fb->cairo_surface) == CAIRO_STATUS_SUCCESS
(kms_flip:602) igt_fb-DEBUG: Test requirement passed: 
cairo_surface_status(fb->cairo_surface) == CAIRO_STATUS_SUCCESS
(kms_flip:602) igt_kms-INFO:   1366x768: 58 74250 1366 1502 1532 1592 
768 776 788 800 0x48 0xa
(kms_flip:602) DEBUG: No stale events found
(kms_flip:602) INFO: Expected frametime: 17153us; measured 17157.9us +- 
49.751us accuracy 0.87%
(kms_flip:602) CRITICAL: Test assertion failure function calibrate_ts, 
file ../tests/kms_flip.c:1455:
(kms_flip:602) CRITICAL: Failed assertion: 3 * stddev / mean < 0.005
(kms_flip:602) igt_core-INFO: Stack trace:
****  END  ****

Pipeline: https://gitlab.freedesktop.org/vigneshraman/msm/-/jobs/79872339

Please could you have a look at these test results and let us know if 
you need more information. Thank you.

Regards,
Vignesh