QA output created by 268
Format and mount
Create the original files
Compare files
1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-268/file1
1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-268/file2
CoW and unmount
fdatasync: Input/output error
Rewrite
Compare files
1886e67cf8783e89ce6ddc5bb09a3944  SCRATCH_MNT/test-268/file1
Check for damage
