IGT-Version: 1.15-g572a770 (x86_64) (Linux: 4.8.0-rc4-nightly+ x86_64)
(gem_sync:25706) igt-core-DEBUG: Test requirement passed: !igt_run_in_simulation()
(gem_sync:25706) drmtest-DEBUG: Test requirement passed: !(fd<0)
Using Legacy submission , with semaphores
(gem_sync:25706) igt-core-DEBUG: Starting subtest: forked-render
(gem_sync:25706) ioctl-wrappers-DEBUG: Test requirement passed: gem_has_ring(fd, ring)
Completed 705536 cycles: 14.175 us
Completed 70656 cycles: 141.594 us
Completed 71680 cycles: 139.526 us
Completed 278528 cycles: 35.914 us
Completed 622592 cycles: 16.106 us
Completed 69632 cycles: 144.011 us
Completed 1488896 cycles: 6.730 us
Completed 75776 cycles: 132.256 us
(gem_sync:25706) CRITICAL: Test assertion failure function sync_ring, file gem_sync.c:153:
(gem_sync:25706) CRITICAL: Failed assertion: intel_detect_and_clear_missed_interrupts(fd) == 0
(gem_sync:25706) CRITICAL: error: 1 != 0
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [sync_ring+0x2ec]
  #2 [__real_main722+0x59e]
  #3 [main+0x29]
  #4 [__libc_start_main+0xf0]
  #5 [_start+0x29]
  #6 [<unknown>+0x29]
Subtest forked-render failed.
**** DEBUG ****
(gem_sync:25706) ioctl-wrappers-DEBUG: Test requirement passed: gem_has_ring(fd, ring)
(gem_sync:25706) CRITICAL: Test assertion failure function sync_ring, file gem_sync.c:153:
(gem_sync:25706) CRITICAL: Failed assertion: intel_detect_and_clear_missed_interrupts(fd) == 0
(gem_sync:25706) CRITICAL: error: 1 != 0
****  END  ****
Subtest forked-render: FAIL (10.031s)
(gem_sync:25706) igt-core-DEBUG: Exiting with status code 99