e2fsprogs/tests/f_extents/expect.1

Pass 1: Checking inodes, blocks, and sizes
Inode 12 is in extent format, but superblock is missing EXTENTS feature
Fix? yes

Inode 12 has an invalid extent
	(logical block 0, invalid physical block 21994527527949, len 17)
Clear? yes

Inode 12 extent tree (at level 1) could be shorter.  Fix? yes

Inode 12, i_blocks is 34, should be 0.  Fix? yes

Inode 13 missing EXTENT_FL, but is in extents format
Fix? yes

Inode 16 has a duplicate extent mapping
	(logical block 3, invalid physical block 4613, len 2)
Clear? yes

Inode 16, i_blocks is 16, should be 12.  Fix? yes

Inode 17 has an invalid extent
	(logical block 0, invalid physical block 22011707397135, len 15)
Clear? yes

Inode 17 extent tree (at level 1) could be shorter.  Fix? yes

Inode 17, i_blocks is 32, should be 0.  Fix? yes

Error while reading over extent tree in inode 18: Corrupt extent header
Clear inode? yes

Inode 18, i_blocks is 2, should be 0.  Fix? yes

Special (device/socket/fifo) file (inode 19) has extents
or inline-data flag set.  Clear? yes

Pass 1E: Optimizing extent trees
Pass 2: Checking directory structure
Entry 'fbad-flag' in / (2) has deleted/unused inode 18.  Clear? yes

Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
Block bitmap differences:  -1081 +4611 -(4613--4614) -(5121--5142)
Fix? yes

Free blocks count wrong for group #0 (7081, counted=7100).
Fix? yes

Free blocks count wrong (7081, counted=7100).
Fix? yes

Inode bitmap differences:  -18
Fix? yes

Free inodes count wrong for group #0 (237, counted=238).
Fix? yes

Free inodes count wrong (237, counted=238).
Fix? yes


test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
test_filesys: 18/256 files (5.6% non-contiguous), 1092/8192 blocks
Exit status is 1