iotests: Backup with different source/target size

[qemu.git] / tests / qemu-iotests / 068

diff --git a/tests/qemu-iotests/068 b/tests/qemu-iotests/068
index 22f5ca3ba662a0d8f7c97bcd871baed25bd793af..ccd1a9f1db79980b8987eacd250ae210873c465c 100755 (executable)
--- a/tests/qemu-iotests/068
+++ b/tests/qemu-iotests/068
@@ -36,11 +36,13 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 . ./common.rc
 . ./common.filter
 
-# This tests qocw2-specific low-level functionality
+# This tests qcow2-specific low-level functionality
 _supported_fmt qcow2
 _supported_proto generic
+# Internal snapshots are (currently) impossible with refcount_bits=1,
+# and generally impossible with external data files
+_unsupported_imgopts 'compat=0.10' 'refcount_bits=1[^0-9]' data_file
 
-IMGOPTS="compat=1.1"
 IMG_SIZE=128K
 
 case "$QEMU_DEFAULT_MACHINE" in