QA output created by 267 === No block devices at all === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 Error: No block device can accept snapshots (qemu) info snapshots No available block device supports snapshots (qemu) loadvm snap0 Error: No block device supports snapshots (qemu) quit === -drive if=none === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -drive driver=file,file=TEST_DIR/t.IMGFMT,if=none QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 Error: Device 'none0' is writable but does not support snapshots (qemu) info snapshots No available block device supports snapshots (qemu) loadvm snap0 Error: Device 'none0' is writable but does not support snapshots (qemu) quit Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=none -device virtio-blk,drive=none0 QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit === -drive if=virtio === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -drive driver=file,file=TEST_DIR/t.IMGFMT,if=virtio QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 Error: Device 'virtio0' is writable but does not support snapshots (qemu) info snapshots No available block device supports snapshots (qemu) loadvm snap0 Error: Device 'virtio0' is writable but does not support snapshots (qemu) quit Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -drive driver=IMGFMT,file=TEST_DIR/t.IMGFMT,if=virtio QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit === Simple -blockdev === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 Error: Device '' is writable but does not support snapshots (qemu) info snapshots No available block device supports snapshots (qemu) loadvm snap0 Error: Device '' is writable but does not support snapshots (qemu) quit Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,node-name=fmt QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=raw,file=file,node-name=raw -blockdev driver=IMGFMT,file=raw,node-name=fmt QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit === -blockdev with a filter on top === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,node-name=fmt -blockdev driver=copy-on-read,file=fmt,node-name=filter QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit === -blockdev with a backing file === Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=134217728 Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-file,node-name=fmt QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt QEMU X.Y.Z monitor - type 'help' for more information (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit Internal snapshots on overlay: Snapshot list: ID TAG VM SIZE DATE VM CLOCK 1 snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 Internal snapshots on backing file: === -blockdev with NBD server on the backing file === Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base Testing: -blockdev driver=file,filename=TEST_DIR/t.IMGFMT.base,node-name=backing-file -blockdev driver=IMGFMT,file=backing-file,node-name=backing-fmt -blockdev driver=file,filename=TEST_DIR/t.IMGFMT,node-name=file -blockdev driver=IMGFMT,file=file,backing=backing-fmt,node-name=fmt QEMU X.Y.Z monitor - type 'help' for more information (qemu) nbd_server_start unix:TEST_DIR/nbd (qemu) nbd_server_add -w backing-fmt (qemu) savevm snap0 (qemu) info snapshots List of snapshots present on all disks: ID TAG VM SIZE DATE VM CLOCK -- snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 (qemu) loadvm snap0 (qemu) quit Internal snapshots on overlay: Snapshot list: ID TAG VM SIZE DATE VM CLOCK 1 snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 Internal snapshots on backing file: Snapshot list: ID TAG VM SIZE DATE VM CLOCK 1 snap0 SIZE yyyy-mm-dd hh:mm:ss 00:00:00.000 *** done