igt@gem_render_copy_redux@interruptible - fail - Failed assertion: val == color

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7651/shard-hsw5/igt@gem_render_copy_redux@interruptible.html

Starting subtest: interruptible
(gem_render_copy_redux:1243) CRITICAL: Test assertion failure function scratch_buf_check, file ../tests/i915/gem_render_copy_redux.c:132:
(gem_render_copy_redux:1243) CRITICAL: Failed assertion: val == color
(gem_render_copy_redux:1243) CRITICAL: Expected 0xffff00ff, found 0xfff0ff00 at (502,502)
Subtest interruptible failed.
**** DEBUG ****
(gem_render_copy_redux:1243) CRITICAL: Test assertion failure function scratch_buf_check, file ../tests/i915/gem_render_copy_redux.c:132:
(gem_render_copy_redux:1243) CRITICAL: Failed assertion: val == color
(gem_render_copy_redux:1243) CRITICAL: Expected 0xffff00ff, found 0xfff0ff00 at (502,502)
(gem_render_copy_redux:1243) igt_core-INFO: Stack trace:
(gem_render_copy_redux:1243) igt_core-INFO:   #0 ../lib/igt_core.c:1877 __igt_fail_assert()
(gem_render_copy_redux:1243) igt_core-INFO:   #1 [scratch_buf_check.isra.0+0x78]
(gem_render_copy_redux:1243) igt_core-INFO:   #2 ../tests/i915/gem_render_copy_redux.c:152 copy()
(gem_render_copy_redux:1243) igt_core-INFO:   #3 ../tests/i915/gem_render_copy_redux.c:223 __real_main205()
(gem_render_copy_redux:1243) igt_core-INFO:   #4 ../tests/i915/gem_render_copy_redux.c:205 main()
(gem_render_copy_redux:1243) igt_core-INFO:   #5 ../csu/libc-start.c:344 __libc_start_main()
(gem_render_copy_redux:1243) igt_core-INFO:   #6 [_start+0x2a]
****  END  ****
Subtest interruptible: FAIL (6.613s)
gem_render_copy_redux: ../lib/igt_core.c:1935: igt_exit: Assertion `waitpid(-1, &tmp, WNOHANG) == -1 && errno == ECHILD' failed.
Received signal SIGABRT.
Stack trace: 
 #0 [fatal_sig_handler+0xd6]
 #1 [killpg+0x40]
 #2 [gsignal+0xc7]
 #3 [abort+0x141]
 #4 [uselocale+0x33a]
 #5 [__assert_fail+0x42]
 #6 [igt_exit+0x19e]
 #7 [main+0x2c]
 #8 [__libc_start_main+0xe7]
 #9 [_start+0x2a]