igt@gem_tiled_swapping@non-threaded - fail - Failed assertion: data[j] == j

https://intel-gfx-ci.01.org/tree/drm-tip/IGTPW_4398/shard-hsw6/igt@gem_tiled_swapping@non-threaded.html

Starting subtest: non-threaded
(gem_tiled_swapping:1245) CRITICAL: Test assertion failure function check_bo, file ../tests/i915/gem_tiled_swapping.c:115:
(gem_tiled_swapping:1245) CRITICAL: Failed assertion: data[j] == j
(gem_tiled_swapping:1245) CRITICAL: mismatch at 97827: 95139
Subtest non-threaded failed.
**** DEBUG ****
(gem_tiled_swapping:1245) CRITICAL: Test assertion failure function check_bo, file ../tests/i915/gem_tiled_swapping.c:115:
(gem_tiled_swapping:1245) CRITICAL: Failed assertion: data[j] == j
(gem_tiled_swapping:1245) CRITICAL: mismatch at 97827: 95139
(gem_tiled_swapping:1245) igt_core-INFO: Stack trace:
(gem_tiled_swapping:1245) igt_core-INFO:   #0 ../lib/igt_core.c:1676 __igt_fail_assert()
(gem_tiled_swapping:1245) igt_core-INFO:   #1 [thread_run+0xdf]
(gem_tiled_swapping:1245) igt_core-INFO:   #2 ../tests/i915/gem_tiled_swapping.c:155 __real_main166()
(gem_tiled_swapping:1245) igt_core-INFO:   #3 ../tests/i915/gem_tiled_swapping.c:166 main()
(gem_tiled_swapping:1245) igt_core-INFO:   #4 ../csu/libc-start.c:344 __libc_start_main()
(gem_tiled_swapping:1245) igt_core-INFO:   #5 [_start+0x2a]
****  END  ****
Subtest non-threaded: FAIL (1.095s)