[Bug 84361] [BYT/BSW] igt/kms_plane some subcases fail sporadically

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84361

ye.tian <yex.tian at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #11 from ye.tian <yex.tian at intel.com> ---
Tested it on the latest nightly kernel and igt.
This issue does not exists on BSW, but it still exists on BYT.

output:
-------------------
root at x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# for i in `seq 1
10`; do ./kms_plane --run-subtest plane-position-covered-pipe-B-plane-1 ; done
IGT-Version: 1.10-ge8457ed (x86_64) (Linux:
4.0.0-rc6_drm-intel-nightly_333cf6_20150403+ x86_64)
Testing connector eDP-1 using pipe B plane 1
Test assertion failure function igt_assert_crc_equal, file igt_debugfs.c:207:
Failed assertion: a->crc[i] == b->crc[i]
error: 0x1b6b6a != 0x289cb3
Stack trace:
  #0 [__igt_fail_assert+0xfc]
  #1 [igt_assert_crc_equal+0x82]
  #2 [test_plane_position.constprop.9+0x2dc]
  #3 [run_tests_for_pipe_plane.constprop.6+0x20c]
  #4 [__real_main407+0x55]
  #5 [main+0x21]
  #6 [__libc_start_main+0xf5]
  #7 [_start+0x29]
  #8 [<unknown>+0x29]
Subtest plane-position-covered-pipe-B-plane-1 failed.
**** DEBUG ****
Test requirement passed: !(pipe >= data->display.n_pipes)
Test requirement passed: !(plane >= data->display.pipes[pipe].n_planes)
Testing connector eDP-1 using pipe B plane 1
display: eDP-1: set_pipe(B)
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=1, pitch=7680)
display: B.0: plane_set_fb(44)
display: commit {
display:     eDP-1: Selecting pipe B
display:     eDP-1: SetCrtc pipe B, fb 44, panning (0, 0), mode 1920x1080
display: }
display: B.0: plane_set_fb(0)
display: commit {
display:     eDP-1: Selecting pipe B
display:     eDP-1: SetCrtc pipe B, disabling
display: }
CRC for a (0.00,1.00,0.00) fb: 001b6b6a 001f30f8 00454281 00454281 00203dd9
display: eDP-1: set_pipe(B)
igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=1, pitch=7680)
display: B.0: plane_set_fb(44)
igt_create_fb_with_bo_size(width=64, height=64, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=2, pitch=256)
display: B.1: plane_set_fb(46)
display: B.1: plane_set_position(100,100)
display: commit {
display:     eDP-1: Selecting pipe B
display:     eDP-1: SetCrtc pipe B, fb 44, panning (0, 0), mode 1920x1080
display:     eDP-1: SetPlane B.1, fb 46, position (100, 100)
display: }
Test assertion failure function igt_assert_crc_equal, file igt_debugfs.c:207:
Failed assertion: a->crc[i] == b->crc[i]
error: 0x1b6b6a != 0x289cb3
****  END  ****
Subtest plane-position-covered-pipe-B-plane-1: FAIL (3.566s)

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