Re: [Qemu-devel] [PATCH] iotests: 122 needs at least two refcount bits now

[Eric Blake <eblake@redhat.com>]

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On 04/06/2018 10:17 AM, Max Reitz wrote:
> The new test case for compressed clusters (added in commit
> abd3622cc03cf41ed542126a540385f30a4c0175) requires two refcount bits to
> succeed, so we need to skip the test when refcount_bits=1 was requested.

We already questioned whether the changes to 122 were appropriate, given
that it didn't even use qemu-img convert.  Should we instead split this
into two tests (keeping 122 as it was before, and making the new
compressed refcount munging tests be separate), where only the new test
needs this filter?

> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  tests/qemu-iotests/122 | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tests/qemu-iotests/122 b/tests/qemu-iotests/122
> index 6cf4fcb866..95e7c51e72 100755
> --- a/tests/qemu-iotests/122
> +++ b/tests/qemu-iotests/122
> @@ -42,6 +42,10 @@ _supported_fmt qcow2
>  _supported_proto file
>  _supported_os Linux
>  
> +# Repairing the compressed image requires qemu-img check to store a
> +# refcount up to 3, which requires at least two refcount bits.
> +_unsupported_imgopts 'refcount_bits=1[^0-9]'
> +

This makes sense, but I'm withholding R-b until we decide if splitting
the tests is wiser.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org


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