Starting subtest: flip-vs-expired-vblank-interruptible
Starting dynamic subtest: A-DP3
(kms_flip:6622) CRITICAL: Test assertion failure function run_test_step, file ...
(kms_flip:6622) CRITICAL: Failed assertion: end - start < 500
(kms_flip:6622) CRITICAL: Last errno: 4, Interrupted system call
Dynamic subtest A-DP3 failed.
**** DEBUG ****
(kms_flip:6622) DEBUG: Vblank took 55us
(kms_flip:6622) DEBUG: name = flip
last_ts = 462.993225
last_received_ts = 462.992859
last_seq = 7552
current_ts = 463.009918
current_received_ts = 463.009521
current_seq = 7553
count = 251
seq_step = 1
...

Starting subtest: flip-vs-expired-vblank-interruptible
Starting dynamic subtest: A-HDMI-A1
Dynamic subtest A-HDMI-A1: SUCCESS (7.653s)
Starting dynamic subtest: B-HDMI-A1
Dynamic subtest B-HDMI-A1: SUCCESS (7.636s)
Starting dynamic subtest: C-HDMI-A1
Dynamic subtest C-HDMI-A1: SUCCESS (7.629s)
Starting dynamic subtest: D-HDMI-A1
(kms_flip:2477) CRITICAL: Test assertion failure function run_test_step, file ...
(kms_flip:2477) CRITICAL: Failed assertion: end - start < 500
(kms_flip:2477) CRITICAL: Last errno: 4, Interrupted system call
Dynamic subtest D-HDMI-A1 failed.
**** DEBUG ****
(kms_flip:2477) DEBUG: Vblank took 23us
(kms_flip:2477) DEBUG: name = flip
last_ts = 474.329895
last_received_ts = 474.329559
...