At least on ZFS this was failing as 512 was less than or equal to 512. I suspect the reason is additional compression done by ZFS and however qemu-img gets the actual size.
Loosen the criteria to make sure after is not bigger than before and also dump the values in the report. Signed-off-by: Alex Bennée <alex.ben...@linaro.org> --- tests/qemu-iotests/214 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/qemu-iotests/214 b/tests/qemu-iotests/214 index 3500e0c47a2..6d1324cd157 100755 --- a/tests/qemu-iotests/214 +++ b/tests/qemu-iotests/214 @@ -125,9 +125,9 @@ $QEMU_IO -c "write -P 0xcc $offset $data_size" "json:{\ sizeB=$($QEMU_IMG info --output=json "$TEST_IMG" | sed -n '/"actual-size":/ s/[^0-9]//gp') -if [ $sizeA -le $sizeB ] +if [ $sizeA -lt $sizeB ] then - echo "Compression ERROR" + echo "Compression ERROR ($sizeA vs $sizeB)" fi $QEMU_IMG check --output=json "$TEST_IMG" | -- 2.20.1