drm-ci: mt8173-elm-hana: kms_flip at busy-flip flake

[Vignesh Raman]

Hi Maintainers,

There is a flake test reported for the mediatek driver in drm-ci.

# Board Name: mt8173-elm-hana
# Failure Rate: 40
# IGT Version: 2.1-g26ddb59c1
# Linux Version: 6.16.0-rc2
kms_flip at busy-flip

02:13:29.480: DEBUG - Begin test kms_flip at busy-flip
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: Test assertion 
failure function __run_test_on_crtc_set, file ../tests/kms_flip.c:1666:
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: Failed 
assertion: do_page_flip(o, o->fb_ids[1], 1) == 0
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: Last errno: 
16, Device or resource busy
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: error: -16 != 0
02:13:29.480: ERROR - Igt error: Dynamic subtest A-eDP1 failed.
02:13:29.480: ERROR - Igt error: **** DEBUG ****
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_fb-DEBUG: 
igt_create_fb_with_bo_size(width=1366, height=768, 
format=XR24(0x34325258), modifier=0x0, size=0)
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_fb-DEBUG: 
igt_create_fb_with_bo_size(handle=1, pitch=5464)
02:13:29.480: ERROR - Igt error: (kms_flip:222) ioctl_wrappers-DEBUG: 
Test requirement passed: igt_has_fb_modifiers(fd)
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_fb-DEBUG: 
igt_create_fb_with_bo_size(width=1366, height=768, 
format=XR24(0x34325258), modifier=0x0, size=0)
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_fb-DEBUG: 
igt_create_fb_with_bo_size(handle=2, pitch=5464)
02:13:29.480: ERROR - Igt error: (kms_flip:222) ioctl_wrappers-DEBUG: 
Test requirement passed: igt_has_fb_modifiers(fd)
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_fb-DEBUG: Test 
requirement passed: cairo_surface_status(fb->cairo_surface) == 
CAIRO_STATUS_SUCCESS
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_fb-DEBUG: Test 
requirement passed: cairo_surface_status(fb->cairo_surface) == 
CAIRO_STATUS_SUCCESS
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_kms-INFO: 
1366x768: 60 76420 1366 1502 1532 1592 768 776 788 800 0x48 0xa
02:13:29.480: ERROR - Igt error: (kms_flip:222) DEBUG: No stale events found
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: Test assertion 
failure function __run_test_on_crtc_set, file ../tests/kms_flip.c:1666:
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: Failed 
assertion: do_page_flip(o, o->fb_ids[1], 1) == 0
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: Last errno: 
16, Device or resource busy
02:13:29.480: ERROR - Igt error: (kms_flip:222) CRITICAL: error: -16 != 0
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_core-INFO: Stack trace:
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #0 
../lib/igt_core.c:2075 __igt_fail_assert()
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #1 
../tests/kms_flip.c:1643 run_test_on_crtc_set.constprop.0()
02:13:29.480: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #2 
../tests/kms_flip.c:1856 run_test()
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #3 
../tests/kms_flip.c:2105 __igt_unique____real_main2028()
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #4 
../tests/kms_flip.c:2028 main()
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #5 
[__libc_init_first+0x80]
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #6 
[__libc_start_main+0x98]
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_core-INFO:   #7 
[_start+0x30]
02:13:29.481: ERROR - Igt error: ****  END  ****
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_kms-CRITICAL: Test 
assertion failure function kmstest_set_connector_dpms, file 
../lib/igt_kms.c:2247:
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_kms-CRITICAL: Failed 
assertion: found_it
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_kms-CRITICAL: Last 
errno: 9, Bad file descriptor
02:13:29.481: ERROR - Igt error: (kms_flip:222) igt_kms-CRITICAL: DPMS 
property not found on 34
02:13:29.481: ERROR - Test kms_flip at busy-flip: Fail: See 
"/results/igt.kms_flip at busy-flip.log"
02:13:29.481: DEBUG - End test kms_flip at busy-flip

Pipeline: https://gitlab.freedesktop.org/vigneshraman/msm/-/jobs/79872311

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

Regards,
Vignesh