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qemu-patch-raspberry4/tests/qemu-iotests/206.out
Alberto Garcia 2118771ddf qcow2: Allow preallocation and backing files if extended_l2 is set 
Traditional qcow2 images don't allow preallocation if a backing file
is set. This is because once a cluster is allocated there is no way to
tell that its data should be read from the backing file.

Extended L2 entries have individual allocation bits for each
subcluster, and therefore it is perfectly possible to have an
allocated cluster with all its subclusters unallocated.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <6d5b0f38e7dc5f2f31d8cab1cb92044e9909aece.1594396418.git.berto@igalia.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-08-25 09:20:04 +02:00

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=== Successful image creation (defaults) ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "size": 0}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-add", "arguments": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "node-name": "imgfile"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "imgfile", "size": 134217728}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
image: TEST_IMG
file format: IMGFMT
virtual size: 128 MiB (134217728 bytes)
cluster_size: 65536
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: false
refcount bits: 16
corrupt: false
extended l2: false
=== Successful image creation (inline blockdev-add, explicit defaults) ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "nocow": false, "preallocation": "off", "size": 0}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 65536, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "lazy-refcounts": false, "preallocation": "off", "refcount-bits": 16, "size": 67108864, "version": "v3"}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
image: TEST_IMG
file format: IMGFMT
virtual size: 64 MiB (67108864 bytes)
cluster_size: 65536
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: false
refcount bits: 16
corrupt: false
extended l2: false
=== Successful image creation (v3 non-default options) ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "nocow": true, "preallocation": "falloc", "size": 0}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 2097152, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "lazy-refcounts": true, "preallocation": "metadata", "refcount-bits": 1, "size": 33554432, "version": "v3"}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
image: TEST_IMG
file format: IMGFMT
virtual size: 32 MiB (33554432 bytes)
cluster_size: 2097152
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: true
refcount bits: 1
corrupt: false
extended l2: false
=== Successful image creation (v2 non-default options) ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2", "size": 0}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"backing-file": "TEST_DIR/PID-t.qcow2.base", "backing-fmt": "qcow2", "cluster-size": 512, "driver": "qcow2", "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "size": 33554432, "version": "v2"}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
image: TEST_IMG
file format: IMGFMT
virtual size: 32 MiB (33554432 bytes)
cluster_size: 512
backing file: TEST_IMG.base
backing file format: IMGFMT
Format specific information:
compat: 0.10
compression type: zlib
refcount bits: 16
=== Successful image creation (encrypted) ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "encrypt": {"cipher-alg": "twofish-128", "cipher-mode": "ctr", "format": "luks", "hash-alg": "sha1", "iter-time": 10, "ivgen-alg": "plain64", "ivgen-hash-alg": "md5", "key-secret": "keysec0"}, "file": {"driver": "file", "filename": "TEST_DIR/PID-t.qcow2"}, "size": 33554432}}}
{"return": {}}
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
image: TEST_IMG
file format: IMGFMT
virtual size: 32 MiB (33554432 bytes)
encrypted: yes
cluster_size: 65536
Format specific information:
compat: 1.1
compression type: zlib
lazy refcounts: false
refcount bits: 16
encrypt:
ivgen alg: plain64
hash alg: sha1
cipher alg: twofish-128
uuid: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
format: luks
cipher mode: ctr
slots:
[0]:
active: true
iters: XXX
key offset: 4096
stripes: 4000
[1]:
active: false
key offset: 69632
[2]:
active: false
key offset: 135168
[3]:
active: false
key offset: 200704
[4]:
active: false
key offset: 266240
[5]:
active: false
key offset: 331776
[6]:
active: false
key offset: 397312
[7]:
active: false
key offset: 462848
payload offset: 528384
master key iters: XXX
corrupt: false
extended l2: false
=== Invalid BlockdevRef ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "this doesn't exist", "size": 33554432}}}
{"return": {}}
Job failed: Cannot find device=this doesn't exist nor node_name=this doesn't exist
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
=== Invalid sizes ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 1234}}}
{"return": {}}
Job failed: Image size must be a multiple of 512 bytes
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 18446744073709551104}}}
{"return": {}}
Job failed: Could not resize image: Image size cannot be negative
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 9223372036854775808}}}
{"return": {}}
Job failed: Could not resize image: Image size cannot be negative
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 9223372036854775296}}}
{"return": {}}
Job failed: Could not resize image: Failed to grow the L1 table: File too large
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
=== Invalid version ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "size": 67108864, "version": "v1"}}}
{"error": {"class": "GenericError", "desc": "Invalid parameter 'v1'"}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "lazy-refcounts": true, "size": 67108864, "version": "v2"}}}
{"return": {}}
Job failed: Lazy refcounts only supported with compatibility level 1.1 and above (use version=v3 or greater)
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 8, "size": 67108864, "version": "v2"}}}
{"return": {}}
Job failed: Different refcount widths than 16 bits require compatibility level 1.1 or above (use version=v3 or greater)
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
=== Invalid backing file options ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"backing-file": "/dev/null", "driver": "qcow2", "file": "node0", "preallocation": "full", "size": 67108864}}}
{"return": {}}
Job failed: Backing file and preallocation can only be used at the same time if extended_l2 is on
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"backing-fmt": "qcow2", "driver": "qcow2", "file": "node0", "size": 67108864}}}
{"return": {}}
Job failed: Backing format cannot be used without backing file
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
=== Invalid cluster size ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 1234, "driver": "qcow2", "file": "node0", "size": 67108864}}}
{"return": {}}
Job failed: Cluster size must be a power of two between 512 and 2048k
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 128, "driver": "qcow2", "file": "node0", "size": 67108864}}}
{"return": {}}
Job failed: Cluster size must be a power of two between 512 and 2048k
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 4194304, "driver": "qcow2", "file": "node0", "size": 67108864}}}
{"return": {}}
Job failed: Cluster size must be a power of two between 512 and 2048k
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 0, "driver": "qcow2", "file": "node0", "size": 67108864}}}
{"return": {}}
Job failed: Cluster size must be a power of two between 512 and 2048k
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"cluster-size": 512, "driver": "qcow2", "file": "node0", "size": 281474976710656}}}
{"return": {}}
Job failed: Could not resize image: Failed to grow the L1 table: File too large
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
=== Invalid refcount width ===
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 128, "size": 67108864}}}
{"return": {}}
Job failed: Refcount width must be a power of two and may not exceed 64 bits
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 0, "size": 67108864}}}
{"return": {}}
Job failed: Refcount width must be a power of two and may not exceed 64 bits
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
{"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "qcow2", "file": "node0", "refcount-bits": 7, "size": 67108864}}}
{"return": {}}
Job failed: Refcount width must be a power of two and may not exceed 64 bits
{"execute": "job-dismiss", "arguments": {"id": "job0"}}
{"return": {}}
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