[Bug 101634] [IGT] [GLK/BSW/BDW/HSW] kms_cursor_legacy some subtest causes test assertion failure

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101634

--- Comment #10 from Elizabeth <elizabethx.de.la.torre.mena at intel.com> ---
Created attachment 134206
  --> https://bugs.freedesktop.org/attachment.cgi?id=134206&action=edit
2x-nonblocking_output

On GLK with IGT-Version: 1.19-g1c6e20d (x86_64) (Linux:
4.13.0-drm-tip-ww37-commit-694f07d+ x86_64), test
igt at kms_cursor_legacy@2x-nonblocking-modeset-vs-cursor-atomic is NO more
failing, while
igt at kms_cursor_legacy@2x-long-nonblocking-modeset-vs-cursor-atomic still fails
showing the assertion:

(kms_cursor_legacy:2209) CRITICAL: Test assertion failure function
two_screens_flip_vs_cursor, file kms_cursor_legacy.c:1040:
(kms_cursor_legacy:2209) CRITICAL: Failed assertion:
get_vblank(display->drm_fd, pipe, 0) == vblank_start
(kms_cursor_legacy:2209) CRITICAL: Last errno: 9, Bad file descriptor
(kms_cursor_legacy:2209) CRITICAL: error: 696355 != 696353
(kms_cursor_legacy:2209) igt-core-INFO: Stack trace:
(kms_cursor_legacy:2209) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(kms_cursor_legacy:2209) igt-core-INFO:   #1 [two_screens_flip_vs_cursor+0x6cd]
(kms_cursor_legacy:2209) igt-core-INFO:   #2 [<unknown>+0x6cd]

======================================
             Software
======================================
kernel version              : 4.13.0-drm-tip-ww37-commit-694f07d+
hostname                    : gfx-desktop
architecture                : x86_64
os version                  : Ubuntu 16.10
os codename                 : yakkety
kernel driver               : i915
bios revision               : 59.41
bios release date           : 08/03/2017
ksc                         : 1.41
hardware acceleration       : disabled
swap partition              : enabled on (/dev/sda3)

======================================
        Graphic drivers
======================================
grep: /opt/X11R7/var/log/Xorg.0.log: No such file or directory
libdrm                      : 2.4.83
cairo                       : 1.15.9
intel-gpu-tools (tag)       : intel-gpu-tools-1.19-284-g1c6e20d
intel-gpu-tools (commit)    : 1c6e20d

======================================
             Hardware
======================================
platform                   : Geminilake
motherboard model          : Geminilake
motherboard id             : GLKRVP1DDR4(05)
form factor                : Hand Held
manufacturer               : IntelCorp.
cpu family                 : Other
cpu family id              : 6
cpu information            : Genuine Intel(R) CPU @ 1.10GHz
gpu card                   : Intel Corporation Device 3185 (rev 03) (prog-if 00
[VGA controller])
memory ram                 : 3.7 GB
max memory ram             : 16 GB
cpu thread                 : 2
cpu core                   : 2
cpu model                  : 122
cpu stepping               : 1
socket                     : Other
hard drive                 : 74GiB (80GB)
current cd clock frequency : 316800 kHz
maximum cd clock frequency : 316800 kHz
displays connected         : eDP-1 DP-1 HDMI-A-2

======================================
             Firmware
======================================
dmc fw loaded             : yes
dmc version               : 1.4
guc fw loaded             : SUCCESS
guc version wanted        : 10.56
guc version found         : 10.56

======================================
             kernel parameters
======================================
quiet drm.debug=0xe i915.enable_guc_loading=2 i915.enable_guc_submission=2
intel_iommu=igfx_off

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