Created attachment 114145 [details]
dmesg

==System Environment==
--------------------------
Regression: No, this issue always exist.


Non-working platforms: SNB

==kernel==
--------------------------
origin/drm-intel-nightly: c2f6e584b215dd0d7e5a8a02716a89e985366ec0(2015-03-08)

==Bug detailed description==
-----------------------------
[root@x-hnr9 tests]# ./kms_universal_plane --run-subtest cursor-fb-leak-pipe-B
IGT-Version: 1.9-g50158de (x86_64) (Linux: 4.0.0-rc2_drm-intel-nightly_c2f6e5_20150307+ x86_64)
Test assertion failure function cursor_leak_test_pipe, file kms_universal_plane.c:633:
Failed assertion: count1 == count2
error: 1 != 11
Subtest cursor-fb-leak-pipe-B failed.
Log Start
    LVDS-1: SetPlane B.2, fb 54, position (100, 100)
display: }
display: B.2: plane_set_fb(55)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 55, position (100, 100)
display: }
display: B.2: plane_set_fb(56)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 56, position (100, 100)
display: }
display: B.2: plane_set_fb(57)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 57, position (100, 100)
display: }
display: B.2: plane_set_fb(58)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 58, position (100, 100)
display: }
display: B.2: plane_set_fb(59)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 59, position (100, 100)
display: }
display: B.2: plane_set_fb(60)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 60, position (100, 100)
display: }
display: B.2: plane_set_fb(61)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 61, position (100, 100)
display: }
display: B.2: plane_set_fb(62)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 62, position (100, 100)
display: }
display: B.2: plane_set_fb(63)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetPlane B.2, fb 63, position (100, 100)
display: }
display: B.2: plane_set_fb(54)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 2 64x64
display: }
display: B.2: plane_set_fb(55)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 3 64x64
display: }
display: B.2: plane_set_fb(56)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 4 64x64
display: }
display: B.2: plane_set_fb(57)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 5 64x64
display: }
display: B.2: plane_set_fb(58)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 6 64x64
display: }
display: B.2: plane_set_fb(59)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 7 64x64
display: }
display: B.2: plane_set_fb(60)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 8 64x64
display: }
display: B.2: plane_set_fb(61)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 9 64x64
display: }
display: B.2: plane_set_fb(62)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 10 64x64
display: }
display: B.2: plane_set_fb(63)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCursor pipe B, fb 11 64x64
display: }
display: B.0: plane_set_fb(0)
display: B.2: plane_set_fb(0)
display: commit {
display:     LVDS-1: Selecting pipe B
display:     LVDS-1: SetCrtc pipe B, disabling
display:     LVDS-1: SetCursor pipe B, disabling
display: }
display: LVDS-1: set_pipe(any)
Test requirement passed: fp
Test assertion failure function cursor_leak_test_pipe, file kms_universal_plane.c:633:
Failed assertion: count1 == count2
error: 1 != 11
Log End
Subtest cursor-fb-leak-pipe-B: FAIL (1.665s)


==Reproduce steps==
---------------------------- 
1. ./kms_universal_plane --run-subtest cursor-fb-leak-pipe-B