[Bug 79052] [PNV/IVB/BSW/HSW]igt/kms_flip subcases vblank-vs-suspend and vblank-vs-suspend-interruptible fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79052

--- Comment #12 from ye.tian <yex.tian at intel.com> ---
Test on the latest nightly kernel, it still fails.

output:
----------
root at x-hsw24:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest vblank-vs-suspend-interruptible
IGT-Version: 1.10-g007ff02 (x86_64) (Linux:
4.0.0-rc7_drm-intel-nightly_631c2f_20150411+ x86_64)
Using monotonic timestamps
Beginning vblank-vs-suspend-interruptible on crtc 20, connector 30
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x48 65000
.rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Apr 13 07:01:54 2015
.rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Apr 13 07:02:26 2015

vblank-vs-suspend-interruptible on crtc 20, connector 30: PASSED

Beginning vblank-vs-suspend-interruptible on crtc 24, connector 30
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x48 65000
.rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Apr 13 07:02:58 2015
.rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Apr 13 07:03:30 2015
Test assertion failure function check_state, file kms_flip.c:659:
Failed assertion: es->current_seq - es->last_seq <= 100
Last errno: 4, Interrupted system call
unexpected vblank seq 513, should be < 112
Stack trace:
  #0 [__igt_fail_assert+0xfc]
  #1 [check_state+0x20d]
  #2 [run_test_on_crtc_set.constprop.13+0xb0c]
  #3 [run_test+0x25a]
  #4 [main+0x433]
  #5 [__libc_start_main+0xf5]
  #6 [_start+0x29]
  #7 [<unknown>+0x29]
Subtest vblank-vs-suspend-interruptible failed.
**** DEBUG ****
Test requirement passed: (flags & TEST_HANG) == 0 || !is_hung(drm_fd)
Test requirement passed: modes
Beginning vblank-vs-suspend-interruptible on crtc 20, connector 30
igt_create_fb_with_bo_size(width=1024, height=768, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=2, pitch=4096)
igt_create_fb_with_bo_size(width=1024, height=768, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=3, pitch=4096)
igt_create_fb_with_bo_size(width=1024, height=768, format=0x34325258 [bpp=32],
tiling=0x100000000000001, size=0
igt_create_fb_with_bo_size(handle=4, pitch=4096)
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x48 65000
Test requirement passed: !igt_run_in_simulation()
Test requirement passed: !igt_run_in_simulation()
testing ts continuity: Current frame 36066, old frame 36024

vblank-vs-suspend-interruptible on crtc 20, connector 30: PASSED

Beginning vblank-vs-suspend-interruptible on crtc 24, connector 30
igt_create_fb_with_bo_size(width=1024, height=768, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=2, pitch=4096)
igt_create_fb_with_bo_size(width=1024, height=768, format=0x34325258 [bpp=32],
tiling=0x0, size=0
igt_create_fb_with_bo_size(handle=3, pitch=4096)
igt_create_fb_with_bo_size(width=1024, height=768, format=0x34325258 [bpp=32],
tiling=0x100000000000001, size=0
igt_create_fb_with_bo_size(handle=4, pitch=4096)
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x48 65000
Test requirement passed: !igt_run_in_simulation()
Test requirement passed: !igt_run_in_simulation()
Test assertion failure function check_state, file kms_flip.c:659:
Failed assertion: es->current_seq - es->last_seq <= 100
Last errno: 4, Interrupted system call
unexpected vblank seq 513, should be < 112
****  END  ****
Subtest vblank-vs-suspend-interruptible: FAIL (35.334s)

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