$ : time sudo -E ./kms_flip --r 2x-vblank-vs-suspend
IGT-Version: 1.19-gf9e0154 (x86_64) (Linux: 4.13.0-drm-tip-ww37-commit-14ea1a9+ x86_64)
Using monotonic timestamps
Beginning 2x-vblank-vs-suspend on pipe A:B, connector eDP-1:DP-1
  1920x1080 60 1920 1936 1952 2104 1080 1083 1097 1116 0xa 0x48 141000
  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Sep 11 19:54:00 2017
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Sep 11 19:54:18 2017
(kms_flip:1491) CRITICAL: Test assertion failure function check_state, file kms_flip.c:508:
(kms_flip:1491) CRITICAL: Failed assertion: es->current_seq - es->last_seq <= 150
(kms_flip:1491) CRITICAL: unexpected vblank seq 12697, should be < 12626
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [check_state+0x331]
  #2 [<unknown>+0x331]
Subtest 2x-vblank-vs-suspend failed.
**** DEBUG ****
(kms_flip:1491) DEBUG: Test requirement passed: (flags & TEST_HANG) == 0 || !is_wedged(drm_fd)
(kms_flip:1491) DEBUG: Test requirement passed: modes
(kms_flip:1491) INFO: Beginning 2x-vblank-vs-suspend on pipe A:B, connector eDP-1:DP-1
(kms_flip:1491) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_flip:1491) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=2, pitch=7680)
(kms_flip:1491) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_flip:1491) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=3, pitch=7680)
(kms_flip:1491) igt-kms-INFO:   1920x1080 60 1920 1936 1952 2104 1080 1083 1097 1116 0xa 0x48 141000
(kms_flip:1491) igt-kms-INFO:   1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
(kms_flip:1491) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: (power_dir = open("/sys/power", O_RDONLY)) >= 0
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: get_supported_suspend_states(power_dir) & (1 << state)
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: test == SUSPEND_TEST_NONE || faccessat(power_dir, "pm_test", R_OK | W_OK, 0) == 0
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: ret == 0
(kms_flip:1491) DEBUG: name = vblank
last_ts = 0.000000
last_received_ts = 0.000000
last_seq = 0
current_ts = 213.014533
current_received_ts = 217.260701
current_seq = 12476
count = 0
seq_step = 10
(kms_flip:1491) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: (power_dir = open("/sys/power", O_RDONLY)) >= 0
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: get_supported_suspend_states(power_dir) & (1 << state)
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: test == SUSPEND_TEST_NONE || faccessat(power_dir, "pm_test", R_OK | W_OK, 0) == 0
(kms_flip:1491) igt-aux-DEBUG: Test requirement passed: ret == 0
(kms_flip:1491) DEBUG: name = vblank
last_ts = 213.014533
last_received_ts = 217.260701
last_seq = 12476
current_ts = 217.415260
current_received_ts = 221.105899
current_seq = 12697
count = 1
seq_step = 10
(kms_flip:1491) CRITICAL: Test assertion failure function check_state, file kms_flip.c:508:
(kms_flip:1491) CRITICAL: Failed assertion: es->current_seq - es->last_seq <= 150
(kms_flip:1491) CRITICAL: unexpected vblank seq 12697, should be < 12626
(kms_flip:1491) igt-core-INFO: Stack trace:
(kms_flip:1491) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(kms_flip:1491) igt-core-INFO:   #1 [check_state+0x331]
(kms_flip:1491) igt-core-INFO:   #2 [<unknown>+0x331]
****  END  ****
Subtest 2x-vblank-vs-suspend: FAIL (9.389s)

real    0m38.403s
user    0m0.050s
sys     0m0.306s

$ : time sudo -E ./kms_flip --r 2x-vblank-vs-suspend-interruptible
IGT-Version: 1.19-gf9e0154 (x86_64) (Linux: 4.13.0-drm-tip-ww37-commit-14ea1a9+ x86_64)
Using monotonic timestamps
Beginning 2x-vblank-vs-suspend-interruptible on pipe A:B, connector eDP-1:DP-1
  1920x1080 60 1920 1936 1952 2104 1080 1083 1097 1116 0xa 0x48 141000
  1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Sep 11 19:56:18 2017
.rtcwake: assuming RTC uses UTC ...
rtcwake: wakeup from "mem" using /dev/rtc0 at Mon Sep 11 19:56:36 2017
(kms_flip:1569) CRITICAL: Test assertion failure function check_state, file kms_flip.c:508:
(kms_flip:1569) CRITICAL: Failed assertion: es->current_seq - es->last_seq <= 150
(kms_flip:1569) CRITICAL: Last errno: 4, Interrupted system call
(kms_flip:1569) CRITICAL: unexpected vblank seq 19067, should be < 19059
Stack trace:
  #0 [__igt_fail_assert+0x101]
  #1 [check_state+0x331]
  #2 [<unknown>+0x331]
Subtest 2x-vblank-vs-suspend-interruptible failed.
**** DEBUG ****
(kms_flip:1569) DEBUG: Test requirement passed: (flags & TEST_HANG) == 0 || !is_wedged(drm_fd)
(kms_flip:1569) DEBUG: Test requirement passed: modes
(kms_flip:1569) INFO: Beginning 2x-vblank-vs-suspend-interruptible on pipe A:B, connector eDP-1:DP-1
(kms_flip:1569) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_flip:1569) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=2, pitch=7680)
(kms_flip:1569) igt-fb-DEBUG: igt_create_fb_with_bo_size(width=1920, height=1080, format=0x34325258, tiling=0x0, size=0)
(kms_flip:1569) igt-fb-DEBUG: igt_create_fb_with_bo_size(handle=3, pitch=7680)
(kms_flip:1569) igt-kms-INFO:   1920x1080 60 1920 1936 1952 2104 1080 1083 1097 1116 0xa 0x48 141000
(kms_flip:1569) igt-kms-INFO:   1920x1080 60 1920 2008 2052 2200 1080 1084 1089 1125 0x5 0x48 148500
(kms_flip:1569) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: (power_dir = open("/sys/power", O_RDONLY)) >= 0
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: get_supported_suspend_states(power_dir) & (1 << state)
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: test == SUSPEND_TEST_NONE || faccessat(power_dir, "pm_test", R_OK | W_OK, 0) == 0
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: ret == 0
(kms_flip:1569) DEBUG: name = vblank
last_ts = 0.000000
last_received_ts = 0.000000
last_seq = 0
current_ts = 323.223185
current_received_ts = 326.397943
current_seq = 18909
count = 0
seq_step = 10
(kms_flip:1569) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: (power_dir = open("/sys/power", O_RDONLY)) >= 0
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: get_supported_suspend_states(power_dir) & (1 << state)
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: test == SUSPEND_TEST_NONE || faccessat(power_dir, "pm_test", R_OK | W_OK, 0) == 0
(kms_flip:1569) igt-aux-DEBUG: Test requirement passed: ret == 0
(kms_flip:1569) DEBUG: name = vblank
last_ts = 323.223185
last_received_ts = 326.397943
last_seq = 18909
current_ts = 326.553204
current_received_ts = 329.858648
current_seq = 19067
count = 1
seq_step = 10
(kms_flip:1569) CRITICAL: Test assertion failure function check_state, file kms_flip.c:508:
(kms_flip:1569) CRITICAL: Failed assertion: es->current_seq - es->last_seq <= 150
(kms_flip:1569) CRITICAL: Last errno: 4, Interrupted system call
(kms_flip:1569) CRITICAL: unexpected vblank seq 19067, should be < 19059
(kms_flip:1569) igt-core-INFO: Stack trace:
(kms_flip:1569) igt-core-INFO:   #0 [__igt_fail_assert+0x101]
(kms_flip:1569) igt-core-INFO:   #1 [check_state+0x331]
(kms_flip:1569) igt-core-INFO:   #2 [<unknown>+0x331]
****  END  ****
Subtest 2x-vblank-vs-suspend-interruptible: FAIL (7.917s)

real    0m38.160s
user    0m0.055s
sys     0m0.297s