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qemu-e2k/tests/qemu-iotests/051.pc.out
Kevin Wolf ac2ae233a0 block: Introduce bdrv_schedule_unref() 
bdrv_unref() is called by a lot of places that need to hold the graph
lock (it naturally happens in the context of operations that change the
graph). However, bdrv_unref() takes the graph writer lock internally, so
it can't actually be called while already holding a graph lock without
causing a deadlock.

bdrv_unref() also can't just become GRAPH_WRLOCK because it drains the
node before closing it, and draining requires that the graph is
unlocked.

The solution is to defer deleting the node until we don't hold the lock
any more and draining is possible again.

Note that keeping images open for longer than necessary can create
problems, too: You can't open an image again before it is really closed
(if image locking didn't prevent it, it would cause corruption).
Reopening an image immediately happens at least during bdrv_open() and
bdrv_co_create().

In order to solve this problem, make sure to run the deferred unref in
bdrv_graph_wrunlock(), i.e. the first possible place where we can drain
again. This is also why bdrv_schedule_unref() is marked GRAPH_WRLOCK.

The output of iotest 051 is updated because the additional polling
changes the order of HMP output, resulting in a new "(qemu)" prompt in
the test output that was previously on a separate line and filtered out.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20230911094620.45040-6-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-09-20 17:46:01 +02:00

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QA output created by 051
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
=== Unknown option ===
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
=== Unknown protocol option ===
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=: Block protocol 'file' doesn't support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=on
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=on: Block protocol 'file' doesn't support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=1234
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=1234: Block protocol 'file' doesn't support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=foo
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,file.unknown_opt=foo: Block protocol 'file' doesn't support the option 'unknown_opt'
=== Invalid format ===
Testing: -drive file=TEST_DIR/t.qcow2,format=foo
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=foo: Unknown driver 'foo'
Testing: -drive file=TEST_DIR/t.qcow2,driver=foo
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,driver=foo: Unknown driver 'foo'
Testing: -drive file=TEST_DIR/t.qcow2,driver=raw,format=qcow2
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,driver=raw,format=qcow2: Cannot specify both 'driver' and 'format'
Testing: -drive file=TEST_DIR/t.qcow2,driver=qcow2,format=qcow2
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,driver=qcow2,format=qcow2: Cannot specify both 'driver' and 'format'
=== Node names ===
Testing: -drive file=TEST_DIR/t.qcow2,node-name=x123456789012345678901234567890
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,node-name=x1234567890123456789012345678901
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,node-name=x1234567890123456789012345678901: Node name too long
Testing: -drive file=TEST_DIR/t.qcow2,node-name=All-Types.of_all0wed_chars
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,node-name=123foo
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,node-name=123foo: Invalid node-name: '123foo'
Testing: -drive file=TEST_DIR/t.qcow2,node-name=_foo
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,node-name=_foo: Invalid node-name: '_foo'
Testing: -drive file=TEST_DIR/t.qcow2,node-name=foo#12
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,node-name=foo#12: Invalid node-name: 'foo#12'
=== Device without drive ===
Testing: -device virtio-scsi -device scsi-hd
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: -device scsi-hd: drive property not set
=== Overriding backing file ===
Testing: -drive file=TEST_DIR/t.qcow2,driver=qcow2,backing.file.filename=TEST_DIR/t.qcow2.orig,if=none,id=drive0 -nodefaults
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2.orig"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2"}} (qcow2)
Removable device: not locked, tray closed
Cache mode: writeback
Backing file: TEST_DIR/t.qcow2.orig (chain depth: 1)
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,driver=raw,backing.file.filename=TEST_DIR/t.qcow2.orig
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,driver=raw,backing.file.filename=TEST_DIR/t.qcow2.orig: Driver doesn't support backing files
Testing: -drive file=TEST_DIR/t.qcow2,file.backing.driver=file,file.backing.filename=TEST_DIR/t.qcow2.orig
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,file.backing.driver=file,file.backing.filename=TEST_DIR/t.qcow2.orig: Driver doesn't support backing files
Testing: -drive file=TEST_DIR/t.qcow2,file.backing.driver=qcow2,file.backing.file.filename=TEST_DIR/t.qcow2.orig
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,file.backing.driver=qcow2,file.backing.file.filename=TEST_DIR/t.qcow2.orig: Driver doesn't support backing files
=== Enable and disable lazy refcounting on the command line, plus some invalid values ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=off
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=: Parameter 'lazy-refcounts' expects 'on' or 'off'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=42
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=42: Parameter 'lazy-refcounts' expects 'on' or 'off'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=foo
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=foo: Parameter 'lazy-refcounts' expects 'on' or 'off'
=== With version 2 images enabling lazy refcounts must fail ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=on
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=on: Lazy refcounts require a qcow2 image with at least qemu 1.1 compatibility level
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=off
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
=== No medium ===
Testing: -drive if=floppy
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive if=ide,media=cdrom
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive if=ide
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: Device needs media, but drive is empty
Testing: -drive if=virtio
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: -drive if=virtio: Device needs media, but drive is empty
Testing: -drive if=none,id=disk -device ide-cd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive if=none,id=disk -device lsi53c895a -device scsi-cd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive if=none,id=disk -device ide-hd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: -device ide-hd,drive=disk: Device needs media, but drive is empty
Testing: -drive if=none,id=disk -device lsi53c895a -device scsi-hd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: -device scsi-hd,drive=disk: Device needs media, but drive is empty
=== Attach to node in non-default iothread ===
Testing: -drive file=TEST_DIR/t.qcow2,if=none,node-name=disk -object iothread,id=thread0 -device virtio-scsi,iothread=thread0,id=virtio-scsi0 -device scsi-hd,bus=virtio-scsi0.0,drive=disk,share-rw=on -device ide-hd,drive=disk,share-rw=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device ide-hd,drive=disk,share-rw=on: Cannot change iothread of active block backend
Testing: -drive file=TEST_DIR/t.qcow2,if=none,node-name=disk -object iothread,id=thread0 -device virtio-scsi,iothread=thread0,id=virtio-scsi0 -device scsi-hd,bus=virtio-scsi0.0,drive=disk,share-rw=on -device virtio-blk-pci,drive=disk,share-rw=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device virtio-blk-pci,drive=disk,share-rw=on: Cannot change iothread of active block backend
Testing: -drive file=TEST_DIR/t.qcow2,if=none,node-name=disk -object iothread,id=thread0 -device virtio-scsi,iothread=thread0,id=virtio-scsi0 -device scsi-hd,bus=virtio-scsi0.0,drive=disk,share-rw=on -device lsi53c895a,id=lsi0 -device scsi-hd,bus=lsi0.0,drive=disk,share-rw=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device scsi-hd,bus=lsi0.0,drive=disk,share-rw=on: HBA does not support iothreads
Testing: -drive file=TEST_DIR/t.qcow2,if=none,node-name=disk -object iothread,id=thread0 -device virtio-scsi,iothread=thread0,id=virtio-scsi0 -device scsi-hd,bus=virtio-scsi0.0,drive=disk,share-rw=on -device virtio-scsi,id=virtio-scsi1 -device scsi-hd,bus=virtio-scsi1.0,drive=disk,share-rw=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device scsi-hd,bus=virtio-scsi1.0,drive=disk,share-rw=on: Cannot change iothread of active block backend
Testing: -drive file=TEST_DIR/t.qcow2,if=none,node-name=disk -object iothread,id=thread0 -device virtio-scsi,iothread=thread0,id=virtio-scsi0 -device scsi-hd,bus=virtio-scsi0.0,drive=disk,share-rw=on -device virtio-blk-pci,drive=disk,iothread=thread0,share-rw=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device virtio-blk-pci,drive=disk,iothread=thread0,share-rw=on: Cannot change iothread of active block backend
Testing: -drive file=TEST_DIR/t.qcow2,if=none,node-name=disk -object iothread,id=thread0 -device virtio-scsi,iothread=thread0,id=virtio-scsi0 -device scsi-hd,bus=virtio-scsi0.0,drive=disk,share-rw=on -device virtio-scsi,id=virtio-scsi1,iothread=thread0 -device scsi-hd,bus=virtio-scsi1.0,drive=disk,share-rw=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
=== Read-only ===
Testing: -drive file=TEST_DIR/t.qcow2,if=floppy,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,if=ide,media=cdrom,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,if=ide,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: Block node is read-only
Testing: -drive file=TEST_DIR/t.qcow2,if=virtio,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-cd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-cd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-hd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
QEMU_PROG: -device ide-hd,drive=disk: Block node is read-only
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-hd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
=== Cache modes ===
Testing: -drive driver=null-co,read-zeroes=on,cache=none
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive driver=null-co,read-zeroes=on,cache=directsync
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive driver=null-co,read-zeroes=on,cache=writeback
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive driver=null-co,read-zeroes=on,cache=writethrough
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive driver=null-co,read-zeroes=on,cache=unsafe
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive driver=null-co,cache=invalid_value
QEMU_PROG: -drive driver=null-co,cache=invalid_value: invalid cache option
Testing: -drive file=TEST_DIR/t.qcow2,cache=writeback,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,if=none,id=drive0 -nodefaults
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2.base"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2"}} (qcow2)
Removable device: not locked, tray closed
Cache mode: writeback
Backing file: TEST_DIR/t.qcow2.base (chain depth: 1)
(qemu) info block file
file: TEST_DIR/t.qcow2 (file)
Cache mode: writeback
(qemu) info block backing
backing: TEST_DIR/t.qcow2.base (qcow2, read-only)
Cache mode: writeback, ignore flushes
(qemu) info block backing-file
backing-file: TEST_DIR/t.qcow2.base (file, read-only)
Cache mode: writeback, ignore flushes
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,cache=writethrough,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,if=none,id=drive0 -nodefaults
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2.base"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2"}} (qcow2)
Removable device: not locked, tray closed
Cache mode: writethrough
Backing file: TEST_DIR/t.qcow2.base (chain depth: 1)
(qemu) info block file
file: TEST_DIR/t.qcow2 (file)
Cache mode: writeback
(qemu) info block backing
backing: TEST_DIR/t.qcow2.base (qcow2, read-only)
Cache mode: writeback, ignore flushes
(qemu) info block backing-file
backing-file: TEST_DIR/t.qcow2.base (file, read-only)
Cache mode: writeback, ignore flushes
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,cache=unsafe,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,if=none,id=drive0 -nodefaults
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2.base"}}, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2"}} (qcow2)
Removable device: not locked, tray closed
Cache mode: writeback, ignore flushes
Backing file: TEST_DIR/t.qcow2.base (chain depth: 1)
(qemu) info block file
file: TEST_DIR/t.qcow2 (file)
Cache mode: writeback, ignore flushes
(qemu) info block backing
backing: TEST_DIR/t.qcow2.base (qcow2, read-only)
Cache mode: writeback, ignore flushes
(qemu) info block backing-file
backing-file: TEST_DIR/t.qcow2.base (file, read-only)
Cache mode: writeback, ignore flushes
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,cache=invalid_value,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,if=none,id=drive0 -nodefaults
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,cache=invalid_value,backing.file.filename=TEST_DIR/t.qcow2.base,backing.cache.no-flush=on,backing.node-name=backing,backing.file.node-name=backing-file,file.node-name=file,if=none,id=drive0: invalid cache option
=== Specifying the protocol layer ===
Testing: -drive file=TEST_DIR/t.qcow2,file.driver=file
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
=== Leaving out required options ===
Testing: -drive driver=file
QEMU_PROG: -drive driver=file: The 'file' block driver requires a file name
Testing: -drive driver=file,filename=
QEMU_PROG: -drive driver=file,filename=: The 'file' block driver requires a file name
Testing: -drive driver=nbd
QEMU_PROG: -drive driver=nbd: NBD server address missing
Testing: -drive driver=raw
QEMU_PROG: -drive driver=raw: A block device must be specified for "file"
Testing: -drive file.driver=file
QEMU_PROG: -drive file.driver=file: The 'file' block driver requires a file name
Testing: -drive file.driver=nbd
QEMU_PROG: -drive file.driver=nbd: NBD server address missing
Testing: -drive file.driver=raw
QEMU_PROG: -drive file.driver=raw: A block device must be specified for "file"
Testing: -drive foo=bar
QEMU_PROG: -drive foo=bar: Must specify either driver or file
=== Specifying both an option and its legacy alias ===
Testing: -drive file=TEST_DIR/t.qcow2,iops=1234,throttling.iops-total=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops=1234,throttling.iops-total=5678: 'throttling.iops-total' and its alias 'iops' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,iops_rd=1234,throttling.iops-read=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops_rd=1234,throttling.iops-read=5678: 'throttling.iops-read' and its alias 'iops_rd' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,iops_wr=1234,throttling.iops-write=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops_wr=1234,throttling.iops-write=5678: 'throttling.iops-write' and its alias 'iops_wr' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,bps=1234,throttling.bps-total=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps=1234,throttling.bps-total=5678: 'throttling.bps-total' and its alias 'bps' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,bps_rd=1234,throttling.bps-read=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_rd=1234,throttling.bps-read=5678: 'throttling.bps-read' and its alias 'bps_rd' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,bps_wr=1234,throttling.bps-write=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_wr=1234,throttling.bps-write=5678: 'throttling.bps-write' and its alias 'bps_wr' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,iops_max=1234,throttling.iops-total-max=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops_max=1234,throttling.iops-total-max=5678: 'throttling.iops-total-max' and its alias 'iops_max' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,iops_rd_max=1234,throttling.iops-read-max=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops_rd_max=1234,throttling.iops-read-max=5678: 'throttling.iops-read-max' and its alias 'iops_rd_max' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,iops_wr_max=1234,throttling.iops-write-max=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops_wr_max=1234,throttling.iops-write-max=5678: 'throttling.iops-write-max' and its alias 'iops_wr_max' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,bps_max=1234,throttling.bps-total-max=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_max=1234,throttling.bps-total-max=5678: 'throttling.bps-total-max' and its alias 'bps_max' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,bps_rd_max=1234,throttling.bps-read-max=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_rd_max=1234,throttling.bps-read-max=5678: 'throttling.bps-read-max' and its alias 'bps_rd_max' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,bps_wr_max=1234,throttling.bps-write-max=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_wr_max=1234,throttling.bps-write-max=5678: 'throttling.bps-write-max' and its alias 'bps_wr_max' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,iops_size=1234,throttling.iops-size=5678
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops_size=1234,throttling.iops-size=5678: 'throttling.iops-size' and its alias 'iops_size' can't be used at the same time
Testing: -drive file=TEST_DIR/t.qcow2,readonly=on,read-only=off
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,readonly=on,read-only=off: 'read-only' and its alias 'readonly' can't be used at the same time
=== Catching negative/large throttling values ===
Testing: -drive file=TEST_DIR/t.qcow2,iops=-1
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,iops=-1: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,bps=-2
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps=-2: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,bps_rd=-3
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_rd=-3: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,bps_rd_max=-3
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps_rd_max=-3: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,throttling.iops-total=-4
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,throttling.iops-total=-4: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,throttling.bps-total=-5
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,throttling.bps-total=-5: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,bps=0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,bps=1
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,bps=1000000000000000
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,bps=1000000000000001
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps=1000000000000001: bps/iops/max values must be within [0, 1000000000000000]
Testing: -drive file=TEST_DIR/t.qcow2,bps=9999999999999999
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,bps=9999999999999999: bps/iops/max values must be within [0, 1000000000000000]
=== Parsing protocol from file name ===
Testing: -hda foo:bar
QEMU_PROG: -hda foo:bar: Unknown protocol 'foo'
Testing: -drive file=foo:bar
QEMU_PROG: -drive file=foo:bar: Unknown protocol 'foo'
Testing: -drive file.filename=foo:bar
QEMU_PROG: -drive file.filename=foo:bar: Could not open 'foo:bar': No such file or directory
Testing: -hda file:TEST_DIR/t.qcow2
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file=file:TEST_DIR/t.qcow2
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) quit
Testing: -drive file.filename=file:TEST_DIR/t.qcow2
QEMU_PROG: -drive file.filename=file:TEST_DIR/t.qcow2: Could not open 'file:TEST_DIR/t.qcow2': No such file or directory
=== Snapshot mode ===
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=drive0 -snapshot
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,snapshot=on,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file.filename=TEST_DIR/t.qcow2,driver=qcow2,snapshot=on,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file.filename=TEST_DIR/t.qcow2,driver=qcow2,if=none,id=drive0 -snapshot
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file=file:TEST_DIR/t.qcow2,if=none,id=drive0 -snapshot
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file=file:TEST_DIR/t.qcow2,snapshot=on,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=drive0 -snapshot
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
Testing: -drive file=TEST_DIR/t.qcow2,snapshot=on,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Testing: -drive file=TEST_DIR/t.qcow2,snapshot=off,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x22 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) quit
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Testing: -drive file=TEST_DIR/t.qcow2,snapshot=on,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) qemu-io drive0 "write -P 0x33 0 4k"
wrote 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
(qemu) commit drive0
(qemu) quit
read 4096/4096 bytes at offset 0
4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
Testing: -drive driver=null-co,snapshot=on
QEMU_PROG: -drive driver=null-co,snapshot=on: Could not open temporary file SNAPSHOT_PATH: No such file or directory
Testing: -drive file=TEST_DIR/t.qcow2,snapshot=on,read-only=on,if=none,id=drive0
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) info block
drive0 (NODE_NAME): json:{"backing": {"driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/t.qcow2"}}, "driver": "qcow2", "file": {"driver": "file", "filename": SNAPSHOT_PATH}} (qcow2, read-only)
Removable device: not locked, tray closed
Cache mode: writeback, ignore flushes
Backing file: TEST_DIR/t.qcow2 (chain depth: 1)
(qemu) quit
*** done
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