igt@gem_mmap_offset@clear - fail - CRITICAL: Test assertion failure function thread_clear CRITICAL: Failed assertion: x[i] == 0 CRITICAL: error: 0x4 != 0

log on intel-gfx-ci.01.org

Starting dynamic subtest: lmem0
Dynamic subtest lmem0: SUCCESS (22.003s)
Starting dynamic subtest: smem0
(gem_mmap_offset:1173) [thread:1183] CRITICAL: Test assertion failure function thread_clear, file ../tests/intel/gem_mmap_offset.c:766:
(gem_mmap_offset:1173) [thread:1183] CRITICAL: Failed assertion: x[i] == 0
(gem_mmap_offset:1173) [thread:1183] CRITICAL: error: 0x4 != 0
(gem_mmap_offset:1173) igt_thread-CRITICAL: Failure in a thread!
Dynamic subtest smem0 failed.
**** DEBUG ****
(gem_mmap_offset:1173) [thread:1183] CRITICAL: Test assertion failure function thread_clear, file ../tests/intel/gem_mmap_offset.c:766:
(gem_mmap_offset:1173) [thread:1183] CRITICAL: Failed assertion: x[i] == 0
(gem_mmap_offset:1173) [thread:1183] CRITICAL: error: 0x4 != 0
(gem_mmap_offset:1173) [thread:1183] igt_core-INFO: Stack trace:
(gem_mmap_offset:1173) [thread:1183] igt_core-INFO:   #0 ../lib/igt_core.c:2051 __igt_fail_assert()
(gem_mmap_offset:1173) [thread:1183] igt_core-INFO:   #1 ../tests/intel/gem_mmap_offset.c:781 thread_clear()
(gem_mmap_offset:1173) [thread:1183] igt_core-INFO:   #2 [pthread_condattr_setpshared+0x684]
(gem_mmap_offset:1173) [thread:1183] igt_core-INFO:   #3 [__clone+0x24c]
(gem_mmap_offset:1173) [thread:1186] INFO: Checked 1283504 / 5612679 pages
(gem_mmap_offset:1173) [thread:1185] INFO: Checked 1246752 / 5564973 pages```