1QA output created by 215 2 3=== Copy-on-read === 4 5Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=4294967296 6wrote 1024/1024 bytes at offset 3221225472 71 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 8Formatting 'TEST_DIR/t.wrap.IMGFMT', fmt=IMGFMT size=4294967296 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT 9wrote 65536/65536 bytes at offset 1048576 1064 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 11read 131072/131072 bytes at offset 1048576 12128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 13read 0/0 bytes at offset 0 140 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 15read 2147483136/2147483136 bytes at offset 1024 162 GiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 17read 1024/1024 bytes at offset 3221226496 181 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) 19can't open device TEST_DIR/t.wrap.qcow2: Block node is read-only 202 GiB (0x80010000) bytes allocated at offset 0 bytes (0x0) 211023.938 MiB (0x3fff0000) bytes not allocated at offset 2 GiB (0x80010000) 2264 KiB (0x10000) bytes allocated at offset 3 GiB (0xc0000000) 231023.938 MiB (0x3fff0000) bytes not allocated at offset 3 GiB (0xc0010000) 24No errors were found on the image. 25Images are identical. 26*** done 27