From 1855536256eb0a5708b04b85f744de69559ea323 Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Mon, 27 Jul 2020 15:52:37 +0200 Subject: [PATCH] iotests/197: Fix for compat=0.10 Writing zeroes to a qcow2 v2 images without a backing file results in an unallocated cluster as of 61b3043965. 197 has a test for COR-ing a cluster on an image without a backing file, which means that the data will be zero, so now on a v2 image that cluster will just stay unallocated, and so the test fails. Just force compat=1.1 for that particular case to enforce the cluster to get allocated. Fixes: 61b3043965fe3552ee2684a97e7cc809ca7a71b3 Signed-off-by: Max Reitz Message-Id: <20200727135237.1096841-1-mreitz@redhat.com> Reviewed-by: Eric Blake --- tests/qemu-iotests/197 | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tests/qemu-iotests/197 b/tests/qemu-iotests/197 index 95f05b0e34..121959a09c 100755 --- a/tests/qemu-iotests/197 +++ b/tests/qemu-iotests/197 @@ -112,7 +112,9 @@ echo echo '=== Partial final cluster ===' echo -_make_test_img 1024 +# Force compat=1.1, because writing zeroes on a v2 image without a +# backing file would just result in an unallocated cluster +_make_test_img -o compat=1.1 1024 $QEMU_IO -f $IMGFMT -C -c 'read 0 1024' "$TEST_IMG" | _filter_qemu_io $QEMU_IO -f $IMGFMT -c map "$TEST_IMG" _check_test_img