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iotests: Improve and rename test 291 to qemu-img-bitmap

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Enhance the test to demonstrate existing less-than-stellar behavior of
qemu-img with a qcow2 image containing an inconsistent bitmap: we
don't diagnose the problem until after copying the entire image (a
potentially long time), and when we do diagnose the failure, we still
end up leaving an empty bitmap in the destination.  This mess will be
cleaned up in the next patch.

While at it, rename the test now that we support useful iotest names,
and fix a missing newline in the error message thus exposed.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210709153951.2801666-2-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
This commit is contained in:
Eric Blake 2021-07-09 10:39:49 -05:00
parent e77c8b8b8e
commit 94075c28ee
3 changed files with 69 additions and 3 deletions
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2
block/dirty-bitmap.c
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@ -193,7 +193,7 @@ int bdrv_dirty_bitmap_check(const BdrvDirtyBitmap *bitmap, uint32_t flags,
error_setg(errp, "Bitmap '%s' is inconsistent and cannot be used",
bitmap->name);
error_append_hint(errp, "Try block-dirty-bitmap-remove to delete"
" this bitmap from disk");
" this bitmap from disk\n");
return -1;
}