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I'm getting io-qcow2-244 test failure on mips*
due to output mismatch:
Take an internal snapshot:
-qemu-img: Could not create snapshot 'test': -95 (Operation not supported)
+qemu-img: Could not create snapshot 'test': -122 (Operation not supported)
No errors were found on the image.
This is because errno values might be different across
different architectures.
This error message in qemu-img.c is the only one which
prints errno directly, all the rest print strerror(errno)
only. Fix this error message and the expected output
of the 3 test cases too.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-ID: <20230811110946.2435067-1-mjt@tls.msk.ru>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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During 'qemu-img create ... 2>&1', if --quiet is not in force, we can
end up with buffered I/O in stdout that was produced before failure,
but which appears in output after failure. This is confusing; the fix
is to flush stdout prior to attempting anything that might produce an
error message. Several iotests demonstrate the resulting ordering
change now that the merged outputs now reflect chronology. (An even
better fix would be to avoid printf from within block.c altogether,
but that's much more invasive...)
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200706203954.341758-2-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Right now, _filter_img_create just filters out everything that looks
format-dependent, and applies some filename filters. That means that we
have to add another filter line every time some format gets a new
creation option. This can be avoided by instead discarding everything
and just keeping what we know is format-independent (format, size,
backing file, encryption information[1], preallocation) or just
interesting to have in the reference output (external data file path).
Furthermore, we probably want to sort these options. Format drivers are
not required to define them in any specific order, so the output is
effectively random (although this has never bothered us until now). We
need a specific order for our reference outputs, though. Unfortunately,
just using a plain "sort" would change a lot of existing reference
outputs, so we have to pre-filter the option keys to keep our existing
order (fmt, size, backing*, data, encryption info, preallocation).
Finally, this makes it difficult for _filter_img_create to automagically
work for QMP output. Thus, this patch adds a separate
_filter_img_create_for_qmp function that echos every line verbatim that
does not start with "Formatting", and pipes those "Formatting" lines to
_filter_img_create.
[1] Actually, the only thing that is really important is whether
encryption is enabled or not. A patch by Maxim thus removes all
other "encrypt.*" options from the output:
https://lists.nongnu.org/archive/html/qemu-block/2020-06/msg00339.html
But that patch needs to come later so we can get away with changing
as few reference outputs in this patch here as possible.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200625125548.870061-2-mreitz@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
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Looking at the qcow2 code that is riddled with error_report() calls,
this is really how it should have been from the start.
Along the way, turn the target_version/current_version comparisons at
the beginning of qcow2_downgrade() into assertions (the caller has to
make sure these conditions are met), and rephrase the error message on
using compat=1.1 to get refcount widths other than 16 bits.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180509210023.20283-3-mreitz@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
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Instead of manually creating the BlockdevCreateOptions object, use a
visitor to parse the given options into the QAPI object.
This involves translation from the old command line syntax to the syntax
mandated by the QAPI schema. Option names are still checked against
qcow2_create_opts, so only the old option names are allowed on the
command line, even if they are translated in qcow2_create().
In contrast, new option values are optionally recognised besides the old
values: 'compat' accepts 'v2'/'v3' as an alias for '0.10'/'1.1', and
'encrypt.format' accepts 'qcow' as an alias for 'aes' now.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
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Add tests for conversion between different refcount widths.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This will let us print options in a format that the user would actually
write it on the command line (foo=bar,baz=asd,etc=def), without
prepending a spurious comma at the beginning of the list, or quoting
values unnecessarily. This patch provides the following changes:
* write and id=, if the option has an id
* do not print separator before the first element
* do not quote string arguments
* properly escape commas (,) for QEMU
Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Add a test for errors specific to certain widths (i.e. snapshots with
refcount_bits=1).
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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