| #!/usr/bin/env bash | |
| # group: rw auto quick | |
| # | |
| # I/O errors when working with internal qcow2 snapshots, and repairing | |
| # the result | |
| # | |
| # Copyright (C) 2018 Red Hat, Inc. | |
| # | |
| # This program is free software; you can redistribute it and/or modify | |
| # it under the terms of the GNU General Public License as published by | |
| # the Free Software Foundation; either version 2 of the License, or | |
| # (at your option) any later version. | |
| # | |
| # This program is distributed in the hope that it will be useful, | |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| # GNU General Public License for more details. | |
| # | |
| # You should have received a copy of the GNU General Public License | |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| seq=$(basename $0) | |
| echo "QA output created by $seq" | |
| status=1 # failure is the default! | |
| _cleanup() | |
| { | |
| _cleanup_test_img | |
| rm -f "$TEST_DIR/blkdebug.conf" | |
| } | |
| trap "_cleanup; exit \$status" 0 1 2 3 15 | |
| # get standard environment, filters and checks | |
| . ./common.rc | |
| . ./common.filter | |
| # This test is specific to qcow2 | |
| _supported_fmt qcow2 | |
| _supported_proto file fuse | |
| # This test needs clusters with at least a refcount of 2 so that | |
| # OFLAG_COPIED is not set. refcount_bits=1 is therefore unsupported. | |
| # (As are external data files.) | |
| _unsupported_imgopts 'refcount_bits=1[^0-9]' data_file | |
| echo | |
| echo '=== Simulating an I/O error during snapshot deletion ===' | |
| echo | |
| _make_test_img 64M | |
| $QEMU_IO -c 'write 0 64k' "$TEST_IMG" | _filter_qemu_io | |
| # Create the snapshot | |
| $QEMU_IMG snapshot -c foo "$TEST_IMG" | |
| # Verify the snapshot is there | |
| echo | |
| _img_info | grep 'Snapshot list' | |
| echo '(Snapshot filtered)' | |
| echo | |
| # Try to delete the snapshot (with an error happening when freeing the | |
| # then leaked clusters) | |
| cat > "$TEST_DIR/blkdebug.conf" <<EOF | |
| [inject-error] | |
| event = "cluster_free" | |
| errno = "5" | |
| EOF | |
| $QEMU_IMG snapshot -d foo "blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG" | |
| # Verify the snapshot is gone | |
| echo | |
| _img_info | grep 'Snapshot list' | |
| # Should only show leaks | |
| echo '--- Checking test image ---' | |
| _check_test_img | |
| echo | |
| # As there are only leaks, this should be able to fully repair the | |
| # image | |
| echo '--- Repairing test image ---' | |
| _check_test_img -r leaks | |
| # success, all done | |
| echo '*** done' | |
| rm -f $seq.full | |
| status=0 |