qemu/tests/qemu-iotests/308.out
Hanna Czenczek 27e0d8b508 iotests/308: Add test for 'write -zu'
Try writing zeroes to a FUSE export while allowing the area to be
unmapped; block/file-posix.c generally implements writing zeroes with
BDRV_REQ_MAY_UNMAP ('write -zu') by calling fallocate(PUNCH_HOLE).  This
used to lead to a blk_pdiscard() in the FUSE export, which may or may
not lead to the area being zeroed.  HEAD^ fixed this to use
blk_pwrite_zeroes() instead (again with BDRV_REQ_MAY_UNMAP), so verify
that running `qemu-io 'write -zu'` on a FUSE exports always results in
zeroes being written.

Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
Message-Id: <20230227104725.33511-3-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-03-10 15:14:46 +01:00

210 lines
6.9 KiB
Plaintext

QA output created by 308
=== Set up ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 67108864/67108864 bytes at offset 0
64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{'execute': 'qmp_capabilities'}
{"return": {}}
{'execute': 'blockdev-add',
'arguments': {
'driver': 'file',
'node-name': 'node-protocol',
'filename': 'TEST_DIR/t.IMGFMT'
} }
{"return": {}}
{'execute': 'blockdev-add',
'arguments': {
'driver': 'IMGFMT',
'node-name': 'node-format',
'file': 'node-protocol'
} }
{"return": {}}
=== Mountpoint not present ===
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-err',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
} }
{"error": {"class": "GenericError", "desc": "Failed to stat 'TEST_DIR/t.IMGFMT.fuse': No such file or directory"}}
=== Mountpoint is a directory ===
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-err',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
} }
{"error": {"class": "GenericError", "desc": "'TEST_DIR/t.IMGFMT.fuse' is not a regular file"}}
=== Mountpoint is a regular file ===
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-mp',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
} }
{"return": {}}
Images are identical.
Permissions pre-chmod: 400
chmod: changing permissions of 'TEST_DIR/t.IMGFMT.fuse': Read-only file system
Permissions post-+w: 400
Permissions post-+x: 500
=== Mount over existing file ===
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-img',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT'
} }
{"return": {}}
Images are identical.
=== Double export ===
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-err',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse'
} }
{"error": {"class": "GenericError", "desc": "There already is a FUSE export on 'TEST_DIR/t.IMGFMT.fuse'"}}
=== Remove export ===
virtual size: 64 MiB (67108864 bytes)
{'execute': 'block-export-del',
'arguments': {
'id': 'export-mp'
} }
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
virtual size: 0 B (0 bytes)
=== Writable export ===
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-mp',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true
} }
{"return": {}}
Writing to read-only export failed: OK
wrote 65536/65536 bytes at offset 1048576
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 1048576
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
=== Resizing exports ===
{'execute': 'block-export-del',
'arguments': {
'id': 'export-mp'
} }
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
{'execute': 'block-export-del',
'arguments': {
'id': 'export-img'
} }
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-img"}}
{'execute': 'blockdev-del',
'arguments': {
'node-name': 'node-format'
} }
{"return": {}}
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-mp',
'node-name': 'node-protocol',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true
} }
{"return": {}}
--- Try growing non-growable export ---
(OK: Lengths of export and original are the same)
dd: error writing 'TEST_DIR/t.IMGFMT.fuse': Input/output error
1+0 records in
0+0 records out
--- Resize export ---
(OK: Lengths of export and original are the same)
OK: Post-truncate image size is as expected
OK: Disk usage grew with fallocate
--- Try growing growable export ---
{'execute': 'block-export-del',
'arguments': {
'id': 'export-mp'
} }
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export-mp',
'node-name': 'node-protocol',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true, 'growable': true
} }
{"return": {}}
65536+0 records in
65536+0 records out
(OK: Lengths of export and original are the same)
OK: Post-grow image size is as expected
--- Shrink export ---
(OK: Lengths of export and original are the same)
OK: Post-truncate image size is as expected
=== Tear down ===
{'execute': 'quit'}
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export-mp"}}
=== Compare copy with original ===
Images are identical.
=== Writing zeroes while unmapping ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 67108864/67108864 bytes at offset 0
64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{'execute': 'qmp_capabilities'}
{"return": {}}
{'execute': 'blockdev-add',
'arguments': {
'driver': 'IMGFMT',
'node-name': 'node-format',
'file': {
'driver': 'file',
'filename': 'TEST_DIR/t.IMGFMT'
}
} }
{"return": {}}
{'execute': 'block-export-add',
'arguments': {
'type': 'fuse',
'id': 'export',
'node-name': 'node-format',
'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'writable': true
} }
{"return": {}}
wrote 67108864/67108864 bytes at offset 0
64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
read 67108864/67108864 bytes at offset 0
64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{'execute': 'quit'}
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_EXPORT_DELETED", "data": {"id": "export"}}
read 67108864/67108864 bytes at offset 0
64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
*** done