[Bug 99912] [IGT][CI] kms_setmode at basic test fails vblank accuracy (18.018us, 0.1%) worse than a scanline

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99912

--- Comment #46 from James Ausmus <james.ausmus at intel.com> ---
What was the conclusion on this one - if it's a bad test, why are we testing
it? :)

It looks like we're getting this on ICL as well -
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_154/fi-icl-u3/igt@kms_setmode@basic.html
- should we just ignore it?

Starting subtest: basic
(kms_setmode:1107) CRITICAL: Test assertion failure function check_timings,
file ../tests/kms_setmode.c:494:
(kms_setmode:1107) CRITICAL: Failed assertion: accuracy < line_time(kmode)
(kms_setmode:1107) CRITICAL: vblank accuracy (8.760us, 0.1%) worse than a
scanline (7.501us)
Subtest basic failed.
**** DEBUG ****
(kms_setmode:1107) INFO: Testing: basic 1 connector combinations
(kms_setmode:1107) igt_fb-DEBUG: igt_create_fb_with_bo_size(width=3840,
height=2160, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1107) igt_fb-DEBUG: igt_create_fb_with_bo_size(handle=1,
pitch=15360)
(kms_setmode:1107) ioctl_wrappers-DEBUG: Test requirement passed:
igt_has_fb_modifiers(fd)
(kms_setmode:1107) igt_fb-DEBUG: Test requirement passed:
cairo_surface_status(fb->cairo_surface) == CAIRO_STATUS_SUCCESS
(kms_setmode:1107) INFO:   Test id#1 CRTC count 1
(kms_setmode:1107) INFO:     CRTC[80] [Pipe A] Mode: 3840x2160 at 60Hz Connectors:
eDP-1[188]
(kms_setmode:1107) igt_fb-DEBUG: igt_create_fb_with_bo_size(width=3840,
height=2160, format=0x34325258, tiling=0x0, size=0)
(kms_setmode:1107) igt_fb-DEBUG: igt_create_fb_with_bo_size(handle=2,
pitch=15360)
(kms_setmode:1107) ioctl_wrappers-DEBUG: Test requirement passed:
igt_has_fb_modifiers(fd)
(kms_setmode:1107) igt_fb-DEBUG: Test requirement passed:
cairo_surface_status(fb->cairo_surface) == CAIRO_STATUS_SUCCESS
(kms_setmode:1107) igt_fb-DEBUG: Test requirement passed:
cairo_surface_status(fb->cairo_surface) == CAIRO_STATUS_SUCCESS
(kms_setmode:1107) INFO: Expected frametime: 16668us; measured 16667.7us +-
2.920us accuracy 0.05% [1.17 scanlines]
(kms_setmode:1107) CRITICAL: Test assertion failure function check_timings,
file ../tests/kms_setmode.c:494:
(kms_setmode:1107) CRITICAL: Failed assertion: accuracy < line_time(kmode)
(kms_setmode:1107) CRITICAL: vblank accuracy (8.760us, 0.1%) worse than a
scanline (7.501us)
(kms_setmode:1107) igt_core-INFO: Stack trace:
(kms_setmode:1107) igt_core-INFO:   #0 ../lib/igt_core.c:1467
__igt_fail_assert()
(kms_setmode:1107) igt_core-INFO:   #1 ../tests/kms_setmode.c:517
check_timings()
(kms_setmode:1107) igt_core-INFO:   #2 ../tests/kms_setmode.c:583
test_crtc_config()
(kms_setmode:1107) igt_core-INFO:   #3 ../tests/kms_setmode.c:600
test_one_combination()
(kms_setmode:1107) igt_core-INFO:   #4 ../tests/kms_setmode.c:784
test_combinations()
(kms_setmode:1107) igt_core-INFO:   #5 ../tests/kms_setmode.c:801 run_test()
(kms_setmode:1107) igt_core-INFO:   #6 ../tests/kms_setmode.c:865 main()
(kms_setmode:1107) igt_core-INFO:   #7 ../csu/libc-start.c:344
__libc_start_main()
(kms_setmode:1107) igt_core-INFO:   #8 [_start+0x2a]
****  END  ****
Subtest basic: FAIL (3.210s)

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20181207/d80b532a/attachment.html>