Hi Ted, I fully understood your words and I have been executing generic/231 test case again and again with linux-4.6.0-rc4, linux-4.6.0-rc5 and the latest source codes of ext4 git server. But, whenever I execute the test case, it is always passed. I think the difference of the test results is originated from the difference between your test environment and mine, however I cannot figure out that. Actually, I just used kvm-xftests because GCE site cannot be accessed in our company by security reasons. Could you suggest some directions for me? ��.n��������+%������w��{.n�����{�����ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f