igt@gem_exec_schedule@pi-userfault-bsd - fail - Failed assertion: !"GPU hung"

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_409/fi-apl-guc/igt@gem_exec_schedule@pi-userfault-bsd.html

Starting subtest: pi-userfault-bsd
(gem_exec_schedule:1173) igt_aux-CRITICAL: Test assertion failure function sig_abort, file ../lib/igt_aux.c:502:
(gem_exec_schedule:1173) igt_aux-CRITICAL: Failed assertion: !"GPU hung"
Subtest pi-userfault-bsd failed.
**** DEBUG ****
(gem_exec_schedule:1173) DEBUG: Test requirement passed: ufd != -1
(gem_exec_schedule:1173) DEBUG: Test requirement passed: ioctl(ufd, UFFDIO_API, &api) == 0 && api.api == UFFD_API
(gem_exec_schedule:1173) DEBUG: submitting fault
(gem_exec_schedule:1173) igt_aux-CRITICAL: Test assertion failure function sig_abort, file ../lib/igt_aux.c:502:
(gem_exec_schedule:1173) igt_aux-CRITICAL: Failed assertion: !"GPU hung"
(gem_exec_schedule:1173) igt_core-INFO: Stack trace:
(gem_exec_schedule:1173) igt_core-INFO:   #0 ../lib/igt_core.c:1877 __igt_fail_assert()
(gem_exec_schedule:1173) igt_core-INFO:   #1 [sig_abort+0x3a]
(gem_exec_schedule:1173) igt_core-INFO:   #2 [killpg+0x40]
(gem_exec_schedule:1173) igt_core-INFO:   #3 ../sysdeps/unix/sysv/linux/poll.c:29 __poll()
(gem_exec_schedule:1173) igt_core-INFO:   #4 ../tests/i915/gem_exec_schedule.c:1765 __real_main2014()
(gem_exec_schedule:1173) igt_core-INFO:   #5 ../tests/i915/gem_exec_schedule.c:2014 main()
(gem_exec_schedule:1173) igt_core-INFO:   #6 ../csu/libc-start.c:344 __libc_start_main()
(gem_exec_schedule:1173) igt_core-INFO:   #7 [_start+0x2a]
****  END  ****