QA output created by 325 Format filesystem Create files Check files d5a0ed0305c8df4180cb2bf975ecffe8 SCRATCH_MNT/file1 d5a0ed0305c8df4180cb2bf975ecffe8 SCRATCH_MNT/file2 CoW a few blocks Inject error FS should be shut down, touch will fail touch: cannot touch 'SCRATCH_MNT/badfs': Input/output error Remount to replay log FS should be online, touch should succeed Check files again 7629bd70d19d7291b448221ac44b26d9 SCRATCH_MNT/file2 Done