when creating an image qemu-img enable us specifying the size of the image using -o size=xx options. But when we specify an invalid size such as a negtive size then different platform gives different result. parse_option_size() function in util/qemu-option.c will be called to parse the size, a cast was called in the function to cast the input (saved as a double in the function) size to an unsigned int64 value, when the input is a negtive value or exceeds the maximum of uint64, then the result is undefined. According to C99 6.3.1.4, the result of converting a floating point number to an integer that cannot represent the (integer part of) number is undefined. And sure enough the results are different on x86 and s390. C99 Language spec 6.3.1.4 Real floating and integers: the result of this assignment/cast is undefined if the float is not in the open interval (-1, U<type>_MAX+1). Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com> Signed-off-by: Bo Tu <tubo@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
213 lines
12 KiB
Plaintext
213 lines
12 KiB
Plaintext
QA output created by 049
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=== Check correct interpretation of suffixes for image size ===
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== 1. Traditional size parameter ==
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1024
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1024b
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1k
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1K
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1048576 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1G
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1073741824 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1T
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1099511627776 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1024.0
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1024.0b
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1.5k
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1536 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1.5K
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1536 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1.5M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1572864 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1.5G
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1610612736 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 1.5T
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1649267441664 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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== 2. Specifying size via -o ==
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qemu-img create -f qcow2 -o size=1024 TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1024b TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1k TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1K TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1M TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1048576 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1G TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1073741824 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1T TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1099511627776 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1024.0 TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1024.0b TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1.5k TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1536 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1.5K TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1536 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1.5M TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1572864 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1.5G TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1610612736 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o size=1.5T TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1649267441664 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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== 3. Invalid sizes ==
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- -1024
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qemu-img: Image size must be less than 8 EiB!
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qemu-img create -f qcow2 -o size=-1024 TEST_DIR/t.qcow2
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qemu-img: Parameter 'size' expects a non-negative number below 2^64
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qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2'
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- -1k
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qemu-img: Image size must be less than 8 EiB!
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qemu-img create -f qcow2 -o size=-1k TEST_DIR/t.qcow2
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qemu-img: Parameter 'size' expects a non-negative number below 2^64
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qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2'
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- 1kilobyte
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qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for
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qemu-img: kilobytes, megabytes, gigabytes, terabytes, petabytes and exabytes.
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qemu-img create -f qcow2 -o size=1kilobyte TEST_DIR/t.qcow2
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=1024 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 TEST_DIR/t.qcow2 -- foobar
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qemu-img: Invalid image size specified! You may use k, M, G, T, P or E suffixes for
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qemu-img: kilobytes, megabytes, gigabytes, terabytes, petabytes and exabytes.
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qemu-img create -f qcow2 -o size=foobar TEST_DIR/t.qcow2
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qemu-img: Parameter 'size' expects a size
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qemu-img: TEST_DIR/t.qcow2: Invalid options for file format 'qcow2'
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== Check correct interpretation of suffixes for cluster size ==
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qemu-img create -f qcow2 -o cluster_size=1024 TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1024 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=1024b TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1024 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=1k TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1024 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=1K TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1024 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=1M TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1048576 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=1024.0 TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1024 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=1024.0b TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=1024 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=0.5k TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=512 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=0.5K TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=512 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o cluster_size=0.5M TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=524288 lazy_refcounts=off refcount_bits=16
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== Check compat level option ==
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qemu-img create -f qcow2 -o compat=0.10 TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='0.10' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o compat=1.1 TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='1.1' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o compat=0.42 TEST_DIR/t.qcow2 64M
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qemu-img: TEST_DIR/t.qcow2: Invalid compatibility level: '0.42'
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='0.42' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o compat=foobar TEST_DIR/t.qcow2 64M
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qemu-img: TEST_DIR/t.qcow2: Invalid compatibility level: 'foobar'
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='foobar' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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== Check preallocation option ==
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qemu-img create -f qcow2 -o preallocation=off TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=65536 preallocation='off' lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o preallocation=metadata TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=65536 preallocation='metadata' lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o preallocation=1234 TEST_DIR/t.qcow2 64M
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qemu-img: TEST_DIR/t.qcow2: invalid parameter value: 1234
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=65536 preallocation='1234' lazy_refcounts=off refcount_bits=16
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== Check encryption option ==
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qemu-img create -f qcow2 -o encryption=off TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o encryption=on TEST_DIR/t.qcow2 64M
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qemu-img: Encrypted images are deprecated
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Support for them will be removed in a future release.
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You can use 'qemu-img convert' to convert your image to an unencrypted one.
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qemu-img: Encrypted images are deprecated
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Support for them will be removed in a future release.
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You can use 'qemu-img convert' to convert your image to an unencrypted one.
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 encryption=on cluster_size=65536 lazy_refcounts=off refcount_bits=16
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== Check lazy_refcounts option (only with v3) ==
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qemu-img create -f qcow2 -o compat=1.1,lazy_refcounts=off TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='1.1' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o compat=1.1,lazy_refcounts=on TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='1.1' encryption=off cluster_size=65536 lazy_refcounts=on refcount_bits=16
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qemu-img create -f qcow2 -o compat=0.10,lazy_refcounts=off TEST_DIR/t.qcow2 64M
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='0.10' encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
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qemu-img create -f qcow2 -o compat=0.10,lazy_refcounts=on TEST_DIR/t.qcow2 64M
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qemu-img: TEST_DIR/t.qcow2: Lazy refcounts only supported with compatibility level 1.1 and above (use compat=1.1 or greater)
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Formatting 'TEST_DIR/t.qcow2', fmt=qcow2 size=67108864 compat='0.10' encryption=off cluster_size=65536 lazy_refcounts=on refcount_bits=16
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*** done
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