On 2017-11-30 04:18, Fam Zheng wrote: > On Thu, 11/23 03:08, Max Reitz wrote: >> Signed-off-by: Max Reitz <mre...@redhat.com> >> --- >> tests/qemu-iotests/103 | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/tests/qemu-iotests/103 b/tests/qemu-iotests/103 >> index ecbd8ebd71..d0cfab8844 100755 >> --- a/tests/qemu-iotests/103 >> +++ b/tests/qemu-iotests/103 >> @@ -40,6 +40,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15 >> _supported_fmt qcow2 >> _supported_proto file nfs >> _supported_os Linux >> +# Internal snapshots are (currently) impossible with refcount_bits=1 >> +_unsupported_imgopts 'refcount_bits=1[^0-9]' > > What is the "[^0-9]" part for?
It's so you can specify refcount_bits=16, but not refcount_bits=1,compat=0.10 or just refcount_bits=1. Max
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