| QA output created by 290 | 
 |  | 
 | ### Test 'qemu-io -c discard' on a QCOW2 image without a backing file | 
 |  | 
 | # Create an image with compat=0.10 without a backing file | 
 | Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 | 
 | # Fill all clusters with data and then discard them | 
 | wrote 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | discard 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Read the data from the discarded clusters | 
 | read 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Output of qemu-img map | 
 | Offset          Length          Mapped to       File | 
 | # Create an image with compat=1.1 without a backing file | 
 | Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 | 
 | # Fill all clusters with data and then discard them | 
 | wrote 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | discard 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Read the data from the discarded clusters | 
 | read 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Output of qemu-img map | 
 | Offset          Length          Mapped to       File | 
 |  | 
 | ### Test 'qemu-io -c discard' on a QCOW2 image with a backing file | 
 |  | 
 | # Create a backing image and fill it with data | 
 | Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=131072 | 
 | wrote 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Create an image with compat=0.10 and a backing file | 
 | Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT | 
 | # Fill all clusters with data and then discard them | 
 | wrote 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | discard 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Read the data from the discarded clusters | 
 | read 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Output of qemu-img map | 
 | Offset          Length          Mapped to       File | 
 | 0               0x20000         0x50000         TEST_DIR/t.qcow2 | 
 | # Create an image with compat=1.1 and a backing file | 
 | Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=131072 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT | 
 | # Fill all clusters with data and then discard them | 
 | wrote 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | discard 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Read the data from the discarded clusters | 
 | read 131072/131072 bytes at offset 0 | 
 | 128 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) | 
 | # Output of qemu-img map | 
 | Offset          Length          Mapped to       File | 
 | *** done |