Hi Geert, I see the following stackinit unit test failures on m68k when running the q800 emulation. # test_char_array_zero: ASSERTION FAILED at lib/stackinit_kunit.c:333 Expected stackinit_range_contains(fill_start, fill_size, target_start, target_size) to be true, but is false stack fill missed target!? (fill 16 wide, target offset by -12) # test_char_array_none: ASSERTION FAILED at lib/stackinit_kunit.c:343 Expected stackinit_range_contains(fill_start, fill_size, target_start, target_size) to be true, but is false stack fill missed target!? (fill 16 wide, target offset by -12) Do you happen to know if this a problem with the test, with m68k, or maybe with the configuration ? My configuration is based on mac_defconfig with various test options enabled. I use gcc 11.4 to build the image. I tried with qemu v8.1 and v8.2. Thanks, Guenter