f51af04cce
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20200924152717.287415-32-kwolf@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
125 lines
5.1 KiB
Plaintext
125 lines
5.1 KiB
Plaintext
wrote 4096/4096 bytes at offset 0
|
|
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
|
|
|
=== Launch VM ===
|
|
{"execute": "nbd-server-start", "arguments": {"addr": {"data": {"path": "SOCK_DIR/PID-socket"}, "type": "unix"}}}
|
|
{"return": {}}
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": []}
|
|
|
|
=== Create a read-only NBD export ===
|
|
{"execute": "block-export-add", "arguments": {"id": "export0", "node-name": "fmt", "type": "nbd"}}
|
|
{"return": {}}
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": [{"id": "export0", "node-name": "fmt", "shutting-down": false, "type": "nbd"}]}
|
|
exports available: 1
|
|
export: 'fmt'
|
|
size: 67108864
|
|
flags: 0x58f ( readonly flush fua df multi cache )
|
|
min block: XXX
|
|
opt block: XXX
|
|
max block: XXX
|
|
available meta contexts: 1
|
|
base:allocation
|
|
|
|
|
|
=== Try a few invalid things ===
|
|
{"execute": "block-export-add", "arguments": {"id": "#invalid", "node-name": "fmt", "type": "nbd"}}
|
|
{"error": {"class": "GenericError", "desc": "Invalid block export id"}}
|
|
{"execute": "block-export-add", "arguments": {"id": "export0", "node-name": "fmt", "type": "nbd"}}
|
|
{"error": {"class": "GenericError", "desc": "Block export id 'export0' is already in use"}}
|
|
{"execute": "block-export-add", "arguments": {"id": "export1", "node-name": "ro", "type": "nbd", "writable": true}}
|
|
{"error": {"class": "GenericError", "desc": "Cannot export read-only node as writable"}}
|
|
{"execute": "block-export-del", "arguments": {"id": "export1"}}
|
|
{"error": {"class": "GenericError", "desc": "Export 'export1' is not found"}}
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": [{"id": "export0", "node-name": "fmt", "shutting-down": false, "type": "nbd"}]}
|
|
|
|
=== Move export to an iothread ===
|
|
{"execute": "device_add", "arguments": {"drive": "fmt", "driver": "scsi-hd", "id": "sda"}}
|
|
{"return": {}}
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": [{"id": "export0", "node-name": "fmt", "shutting-down": false, "type": "nbd"}]}
|
|
exports available: 1
|
|
export: 'fmt'
|
|
size: 67108864
|
|
flags: 0x58f ( readonly flush fua df multi cache )
|
|
min block: XXX
|
|
opt block: XXX
|
|
max block: XXX
|
|
available meta contexts: 1
|
|
base:allocation
|
|
|
|
|
|
=== Add a writable export ===
|
|
{"execute": "block-export-add", "arguments": {"description": "This is the writable second export", "id": "export1", "name": "export1", "node-name": "fmt", "type": "nbd", "writable": true, "writethrough": true}}
|
|
{"error": {"class": "GenericError", "desc": "Conflicts with use by sda as 'root', which does not allow 'write' on fmt"}}
|
|
{"execute": "device_del", "arguments": {"id": "sda"}}
|
|
{"return": {}}
|
|
{"data": {"device": "sda", "path": "/machine/peripheral/sda"}, "event": "DEVICE_DELETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
|
|
{"execute": "device_add", "arguments": {"drive": "fmt", "driver": "scsi-hd", "id": "sda", "share-rw": true}}
|
|
{"return": {}}
|
|
{"execute": "block-export-add", "arguments": {"description": "This is the writable second export", "id": "export1", "name": "export1", "node-name": "fmt", "type": "nbd", "writable": true, "writethrough": true}}
|
|
{"return": {}}
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": [{"id": "export1", "node-name": "fmt", "shutting-down": false, "type": "nbd"}, {"id": "export0", "node-name": "fmt", "shutting-down": false, "type": "nbd"}]}
|
|
exports available: 2
|
|
export: 'fmt'
|
|
size: 67108864
|
|
flags: 0x58f ( readonly flush fua df multi cache )
|
|
min block: XXX
|
|
opt block: XXX
|
|
max block: XXX
|
|
available meta contexts: 1
|
|
base:allocation
|
|
export: 'export1'
|
|
description: This is the writable second export
|
|
size: 67108864
|
|
flags: 0xced ( flush fua trim zeroes df cache fast-zero )
|
|
min block: XXX
|
|
opt block: XXX
|
|
max block: XXX
|
|
available meta contexts: 1
|
|
base:allocation
|
|
|
|
|
|
=== Connect qemu-io to export1, try removing exports ===
|
|
read 4096/4096 bytes at offset 0
|
|
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
|
|
|
wrote 4096/4096 bytes at offset 4096
|
|
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
|
|
|
{"execute": "block-export-del", "arguments": {"id": "export1"}}
|
|
{"error": {"class": "GenericError", "desc": "export 'export1' still in use"}}
|
|
{"execute": "block-export-del", "arguments": {"id": "export0"}}
|
|
{"return": {}}
|
|
[{"data": {"id": "export0"}, "event": "BLOCK_EXPORT_DELETED", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}]
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": [{"id": "export1", "node-name": "fmt", "shutting-down": false, "type": "nbd"}]}
|
|
exports available: 1
|
|
export: 'export1'
|
|
description: This is the writable second export
|
|
size: 67108864
|
|
flags: 0xced ( flush fua trim zeroes df cache fast-zero )
|
|
min block: XXX
|
|
opt block: XXX
|
|
max block: XXX
|
|
available meta contexts: 1
|
|
base:allocation
|
|
|
|
|
|
=== Connect qemu-io again, try force removing ===
|
|
{"execute": "block-export-del", "arguments": {"id": "export1"}}
|
|
{"error": {"class": "GenericError", "desc": "export 'export1' still in use"}}
|
|
{"execute": "block-export-del", "arguments": {"id": "export1", "mode": "hard"}}
|
|
{"return": {}}
|
|
read failed: Input/output error
|
|
|
|
{"execute": "query-block-exports", "arguments": {}}
|
|
{"return": []}
|
|
exports available: 0
|
|
|
|
|
|
=== Shut down QEMU ===
|