QA output created by 223 === Create partially sparse image, then add dirty bitmaps === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=4194304 wrote 2097152/2097152 bytes at offset 1048576 2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) Testing: QMP_VERSION {"return": {}} {"return": {}} {"return": {}} {"return": {}} {"return": {}} {"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}} === Write part of the file under active bitmap === wrote 512/512 bytes at offset 512 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) wrote 2097152/2097152 bytes at offset 2097152 2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) === End dirty bitmaps, and start serving image over NBD === {"return": {}} {"return": {}} {"return": {}} {"error": {"class": "GenericError", "desc": "NBD server not running"}} {"return": {}} {"error": {"class": "GenericError", "desc": "NBD server already running"}} exports available: 0 {"return": {}} {"error": {"class": "GenericError", "desc": "Cannot find device=nosuch nor node_name=nosuch"}} {"error": {"class": "GenericError", "desc": "NBD server already has export named 'n'"}} {"error": {"class": "GenericError", "desc": "Enabled bitmap 'b2' incompatible with readonly export"}} {"error": {"class": "GenericError", "desc": "Bitmap 'b3' is not found"}} {"return": {}} exports available: 2 export: 'n' size: 4194304 flags: 0x4ef ( readonly flush fua trim zeroes df cache ) min block: 512 opt block: 4096 max block: 33554432 available meta contexts: 2 base:allocation qemu:dirty-bitmap:b export: 'n2' size: 4194304 flags: 0x4ed ( flush fua trim zeroes df cache ) min block: 512 opt block: 4096 max block: 33554432 available meta contexts: 2 base:allocation qemu:dirty-bitmap:b2 === Contrast normal status to large granularity dirty-bitmap === read 512/512 bytes at offset 512 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) read 524288/524288 bytes at offset 524288 512 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) read 1048576/1048576 bytes at offset 1048576 1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) read 2097152/2097152 bytes at offset 2097152 2 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) [{ "start": 0, "length": 4096, "depth": 0, "zero": false, "data": true}, { "start": 4096, "length": 1044480, "depth": 0, "zero": true, "data": false}, { "start": 1048576, "length": 3145728, "depth": 0, "zero": false, "data": true}] [{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false}, { "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true}, { "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] === Contrast to small granularity dirty-bitmap === [{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true}, { "start": 512, "length": 512, "depth": 0, "zero": false, "data": false}, { "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true}, { "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] === End qemu NBD server === {"return": {}} {"return": {}} {"error": {"class": "GenericError", "desc": "Export 'n2' is not found"}} {"return": {}} {"error": {"class": "GenericError", "desc": "NBD server not running"}} {"return": {}} {"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}} === Use qemu-nbd as server === [{ "start": 0, "length": 65536, "depth": 0, "zero": false, "data": false}, { "start": 65536, "length": 2031616, "depth": 0, "zero": false, "data": true}, { "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] [{ "start": 0, "length": 512, "depth": 0, "zero": false, "data": true}, { "start": 512, "length": 512, "depth": 0, "zero": false, "data": false}, { "start": 1024, "length": 2096128, "depth": 0, "zero": false, "data": true}, { "start": 2097152, "length": 2097152, "depth": 0, "zero": false, "data": false}] *** done