1QA output created by 305 2### Create the image 3Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 4### Fill the first refcount block and one data cluster from the second 5wrote 126976/126976 bytes at offset 0 6124 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 7### Discard two of the last data clusters, leave one in the middle 8discard 1024/1024 bytes at offset 123904 91 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 10discard 1024/1024 bytes at offset 125952 111 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 12### Corrupt the offset of the second refcount block 13### Try to allocate the discarded clusters again 14qcow2: Marking image as corrupt: Refblock offset 0x20600 unaligned (reftable index: 0x1); further corruption events will be suppressed 15write failed: Input/output error 16*** done 17