4 # qcow2 v3-exclusive error path testing
5 # (026 tests paths common to v2 and v3)
7 # Copyright (C) 2020 Red Hat, Inc.
9 # This program is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 2 of the License, or
12 # (at your option) any later version.
14 # This program is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program. If not, see <http://www.gnu.org/licenses/>.
24 echo "QA output created by $seq"
26 status=1 # failure is the default!
31 rm "$TEST_DIR/blkdebug.conf"
32 rm -f "$TEST_IMG.data_file"
34 trap "_cleanup; exit \$status" 0 1 2 3 15
36 # get standard environment, filters and checks
42 _supported_proto file fuse
43 # This is a v3-exclusive test;
44 # As for data_file, error paths often very much depend on whether
45 # there is an external data file or not; so we create one exactly when
47 _unsupported_imgopts 'compat=0.10' data_file
50 echo === Avoid freeing external data clusters on failure ===
53 cat > "$TEST_DIR/blkdebug.conf" <<EOF
60 # Test what happens when there is an error when writing to an external
61 # data file instead of when writing to a preallocated zero cluster
62 _make_test_img -o "data_file=$TEST_IMG.data_file" 64k
64 # Put blkdebug above the data-file, and a raw node on top of that so
65 # that blkdebug will see a write_aio event and emit an error. This
66 # will then trigger the alloc abort code, which we want to test here.
67 $QEMU_IO -c "write 0 64k" \
70 'file': { 'driver': 'file', 'filename': '$TEST_IMG' },
75 'config': '$TEST_DIR/blkdebug.conf',
78 'filename': '$TEST_IMG.data_file'