On 23.10.19 04:01, Eric Blake wrote:
> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> 
> Add test, which starts backup to nbd target and restarts nbd server
> during backup.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> Message-Id: <20191009084158.15614-4-vsementsov@virtuozzo.com>
> Reviewed-by: Eric Blake <eblake@redhat.com>
> Signed-off-by: Eric Blake <eblake@redhat.com>
> ---
>  tests/qemu-iotests/264        | 95 +++++++++++++++++++++++++++++++++++
>  tests/qemu-iotests/264.out    | 13 +++++
>  tests/qemu-iotests/group      |  1 +
>  tests/qemu-iotests/iotests.py | 11 ++++
>  4 files changed, 120 insertions(+)
>  create mode 100755 tests/qemu-iotests/264
>  create mode 100644 tests/qemu-iotests/264.out

I suppose this test should limit the supported image formats.  For me,
it fails for at least LUKS, cloop, and vpc.  (Due to different reasons
for each format.)

Max