#!/bin/bash # # qcow2 internal snapshots/VM state tests # # Copyright (C) 2011 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/>. # # creator owner=kwolf@redhat.com seq=`basename $0` echo "QA output created by $seq" here=`pwd` status=1 # failure is the default! _cleanup() { rm -f $TEST_IMG.snap _cleanup_test_img } trap "_cleanup; exit \$status" 0 1 2 3 15 # get standard environment, filters and checks . ./common.rc . ./common.filter . ./common.pattern # Any format supporting intenal snapshots _supported_fmt qcow2 _supported_proto generic _supported_os Linux # Internal snapshots are (currently) impossible with refcount_bits=1 _unsupported_imgopts 'refcount_bits=1[^0-9]' offset_size=24 offset_l1_size=36 echo echo Test loading internal snapshots where the L1 table of the snapshot echo is smaller than the current L1 table. echo CLUSTER_SIZE=65536 _make_test_img 64M $QEMU_IMG snapshot -c foo "$TEST_IMG" $QEMU_IO -c 'write -b 0 4k' "$TEST_IMG" | _filter_qemu_io $QEMU_IMG snapshot -a foo "$TEST_IMG" _check_test_img CLUSTER_SIZE=1024 _make_test_img 16M $QEMU_IMG snapshot -c foo "$TEST_IMG" $QEMU_IO -c 'write -b 0 4M' "$TEST_IMG" | _filter_qemu_io $QEMU_IMG snapshot -a foo "$TEST_IMG" _check_test_img echo echo Try using a huge VM state echo CLUSTER_SIZE=65536 _make_test_img 64M { $QEMU_IO -c "write -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir { $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir { $QEMU_IO -c "read -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir _check_test_img echo echo "qcow2_snapshot_load_tmp() should take the L1 size from the snapshot" echo CLUSTER_SIZE=512 _make_test_img 64M { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir poke_file "$TEST_IMG" "$offset_size" "\x00\x00\x00\x00\x00\x00\x02\x00" poke_file "$TEST_IMG" "$offset_l1_size" "\x00\x00\x00\x01" { $QEMU_IMG convert -s foo $TEST_IMG $TEST_IMG.snap; } 2>&1 | _filter_qemu_io | _filter_testdir # success, all done echo "*** done" rm -f $seq.full status=0