Missing '..' in directory inode 16.
Fix? yes
+Directory entry for '.' in ... (19) is big.
+Split? yes
+
Pass 3: Checking directory connectivity
'..' in /a (12) is <The NULL inode> (0), should be / (2).
Fix? yes
Pass 4: Checking reference counts
Pass 5: Checking group summary information
-Free blocks count wrong for group #0 (70, counted=71).
+Free blocks count wrong for group #0 (69, counted=70).
Fix? yes
-Free blocks count wrong (70, counted=71).
+Free blocks count wrong (69, counted=70).
Fix? yes
test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
-test_filesys: 18/32 files (0.0% non-contiguous), 29/100 blocks
+test_filesys: 19/32 files (0.0% non-contiguous), 30/100 blocks
Exit status is 1