e2fsprogs/tests/f_dupfsblks/expect.1

Filesystem did not have a UUID; generating one.

Pass 1: Checking inodes, blocks, and sizes
Inode 12 has illegal block(s).  Clear? yes

Block #1 (3) overlaps filesystem metadata in inode 12.  CLEARED.
Block #2 (4) overlaps filesystem metadata in inode 12.  CLEARED.
Block #3 (6) overlaps filesystem metadata in inode 12.  CLEARED.
Inode 12, i_size is 4096, should be 1024.  Fix? yes

Inode 12, i_blocks is 8, should be 2.  Fix? yes

Pass 2: Checking directory structure
Directory inode 12 has an unallocated block #1.  Allocate? yes

Directory inode 12 has an unallocated block #2.  Allocate? yes

Directory inode 12 has an unallocated block #3.  Allocate? yes

Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Fix summary information? yes

Free blocks count wrong for group 0 (77, counted=74).  FIXED
Free blocks count wrong (77, counted=74).  FIXED

test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
test_filesys: 12/32 files (8.3% non-contiguous), 26/100 blocks
Exit status is 1