Created attachment 122130 [details]
dmesg

Hardware
Platform: KABY LAKE-U 
CPU : Intel(R) Core(TM) @ 2.60GHz
MCP : KBL-U G0 2+2 (ou ULT-G0)
QDF : QYQ8
Chipset PCH: SPT-LP C1 
CRB : KABY LAKE U DDR3L RVP7 CRB FAB1
Software
BIOS : KBLSE2R1.R00.X015.B01.1511271314
ME FW : 11.5.0.1008
Ksc (EC FW): 1.20
Linux distribution: Ubuntu 15.10 64 bits
Kernel drm-intel-nightly 4.5.0-rc6_59c2aa9 from http://cgit.freedesktop.org/drm-intel/
  commit 59c2aa9790ada24e1c13cd582a91fea33dc75b00
  Author: Jani Nikula <jani.nikula@intel.com>
  Date:   Mon Feb 29 11:15:04 2016 +0200
  drm-intel-nightly: 2016y-02m-29d-09h-14m-18s UTC integration manifest
drm: libdrm-2.4.67-5 ea07de9 from git://anongit.freedesktop.org/mesa/drm
mesa: mesa-11.1.2 7bcd827 from git://anongit.freedesktop.org/mesa/mesa
cairo: 1.15.2 db8a7f1 from git://anongit.freedesktop.org/cairo
waffle: bb29b2a from git://github.com/waffle-gl/waffle
xorg-server-macros: util-macros-1.19.0-2 d7acec2 from git://git.freedesktop.org/git/xorg/util/macros
xserver: xorg-server-1.18.0-188 939ce0b from git://git.freedesktop.org/git/xorg/xserver
xf86-video-intel: 2.99.917-560 d167280 from git://anongit.freedesktop.org/xorg/driver/xf86-video-intel
libva: libva-1.6.1-37 1f026de from git://git.freedesktop.org/git/vaapi/libva
vaapi-intel-driver: 1.6.1-92 f6fe842 from git://anongit.freedesktop.org/vaapi/intel-driver
intel-gpu-tool: intel-gpu-tools-1.13 from http://anongit.freedesktop.org/git/xorg/app/intel-gpu-tools.git

Regression
----------
Yes, test was pass with: 
Kernel drm-intel-nightly 4.5.0-rc5_1a139ea from http://cgit.freedesktop.org/drm-intel/
 commit 1a139ead792d8e912aa13d413b9cf59811fde676
  Author: Jani Nikula <jani.nikula@intel.com>
  Date:   Mon Feb 22 10:48:46 2016 +0200
  drm-intel-nightly: 2016y-02m-22d-08h-48m-06s UTC integration manifest
drm: (HEAD, tag: libdrm-2.4.67, tag: 2.4.67)49efb55846c6ec96400061213b76ab867461c1a from git://git.freedesktop.org/git/mesa/drm
cairo: tag 1.15.2 db8a7f1 from http://cgit.freedesktop.org/cairo
intel-gpu-tools: f27d295 


Steps:
-----
1. Execute IGT test:
kms_frontbuffer_tracking --run-subtest psr-slowdraw

Actual result:
--------------
Test is fail, output:
IGT-Version: 1.13-NOT-GIT (x86_64) (Linux: 4.5.0-rc6-nightly+ x86_64)
Primary screen: eDP 3200x1800
Secondary screen: DP 1920x1080
FBC last action not supported
(kms_frontbuffer_tracking:20167) CRITICAL: Test assertion failure function enable_prim_screen_and_wait, file kms_frontbuffer_tracking.c:1685:
(kms_frontbuffer_tracking:20167) CRITICAL: Failed assertion: sink_crc_equal(&crc_.sink, &wanted_crc->sink)
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [enable_prim_screen_and_wait+0x397]
  #2 [prepare_subtest_screens+0x9]
  #3 [slow_draw_subtest+0x49]
  #4 [main+0x283c]
  #5 [__libc_start_main+0xf0]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Subtest psr-slowdraw failed.
**** DEBUG ****
(kms_frontbuffer_tracking:20167) DEBUG: Test requirement passed: psr.can_test
(kms_frontbuffer_tracking:20167) DEBUG: Test requirement passed: sink_crc.supported
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=3200, height=1800, format=0x34325258 [bpp=32], tiling=0x100000000000001, size=23040000)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=9, pitch=12800)
(kms_frontbuffer_tracking:20167) DEBUG: Blue CRC:   pipe:[caf54d69 00000000 00000000 00000000 00000000] sink:[e6ed94b1558b]
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=3200, height=1800, format=0x34325258 [bpp=32], tiling=0x100000000000001, size=23040000)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=9, pitch=12800)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=3200, height=1800, format=0x34325258 [bpp=32], tiling=0x100000000000001, size=23040000)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=10, pitch=12800)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=3200, height=1800, format=0x34325258 [bpp=32], tiling=0x100000000000001, size=23040000)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=11, pitch=12800)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=3200, height=1800, format=0x34325258 [bpp=32], tiling=0x100000000000001, size=23040000)
(kms_frontbuffer_tracking:20167) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=12, pitch=12800)
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) DEBUG: Rect 0 CRC: pipe:[085496e8 00000000 00000000 00000000 00000000] sink:[2f6cfc546be7]
(kms_frontbuffer_tracking:20167) DEBUG: Rect 1 CRC: pipe:[f0ce7e4f 00000000 00000000 00000000 00000000] sink:[be56b8ade975]
(kms_frontbuffer_tracking:20167) DEBUG: Rect 2 CRC: pipe:[eb887661 00000000 00000000 00000000 00000000] sink:[89f23cc83342]
(kms_frontbuffer_tracking:20167) DEBUG: Rect 3 CRC: pipe:[178fb566 00000000 00000000 00000000 00000000] sink:[ff2b8d4c7358]
(kms_frontbuffer_tracking:20167) igt-draw-DEBUG: Test requirement passed: intel_gen(intel_get_drm_devid(fd)) >= 5
(kms_frontbuffer_tracking:20167) DEBUG: Calculated CRC: pipe:[caf54d69 00000000 00000000 00000000 00000000] sink:[25d70000c3e3]
(kms_frontbuffer_tracking:20167) CRITICAL: Test assertion failure function enable_prim_screen_and_wait, file kms_frontbuffer_tracking.c:1685:
(kms_frontbuffer_tracking:20167) CRITICAL: Failed assertion: sink_crc_equal(&crc_.sink, &wanted_crc->sink)
****  END  ****
Subtest psr-slowdraw: FAIL (4,011s)

Expected result:
---------------
Test is Pass