| #!/usr/bin/env bash |
| # |
| # 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 |
| _supported_os Linux |
| |
| # This test needs clusters with at least a refcount of 2 so that |
| # OFLAG_COPIED is not set. refcount_bits=1 is therefore unsupported. |
| _unsupported_imgopts 'refcount_bits=1[^0-9]' |
| |
| 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 |
