Hi, I''ve received another bug report related to ztest. It failed with the following message: ztest: attach (/tmp/ztest.12a, /tmp/ztest.12b, 1) returned 0, expected 16 (16 == EBUSY) There was another problem in that function which I''ve reported before - it returned ENOTSUPP instead of the expected EBUSY - which I think it isn''t fixed yet. I don''t believe this is a serious problem, just following up the bug report ;)