root@IVB103:/opt/X11R7/src/intel-gpu-tools/tests# ./vgem_basic --r unload
IGT-Version: 1.16-g1a76d88 (x86_64) (Linux: 4.8.0-rc8-gcov+ x86_64)
(vgem_basic:19233) CRITICAL: Test assertion failure function test_unload, file vgem_basic.c:332:
(vgem_basic:19233) CRITICAL: Failed assertion: module_unload() != 0
(vgem_basic:19233) CRITICAL: A dmabuf should keep the module alive
Stack trace:
  #0 [__igt_fail_assert+0xf1]
  #1 [__real_main374+0xf51]
  #2 [main+0x29]
  #3 [__libc_start_main+0xf0]
  #4 [_start+0x29]
  #5 [<unknown>+0x29]
Subtest unload failed.
**** DEBUG ****
(vgem_basic:19233) DEBUG: Test requirement passed: module_unload() == 0
(vgem_basic:19233) CRITICAL: Test assertion failure function test_unload, file vgem_basic.c:332:
(vgem_basic:19233) CRITICAL: Failed assertion: module_unload() != 0
(vgem_basic:19233) CRITICAL: A dmabuf should keep the module alive
****  END  ****
Subtest unload: FAIL (0.153s)