1#!/usr/bin/env bash 2# 3# qcow2 internal snapshots/VM state tests 4# 5# Copyright (C) 2011 Red Hat, Inc. 6# 7# This program is free software; you can redistribute it and/or modify 8# it under the terms of the GNU General Public License as published by 9# the Free Software Foundation; either version 2 of the License, or 10# (at your option) any later version. 11# 12# This program is distributed in the hope that it will be useful, 13# but WITHOUT ANY WARRANTY; without even the implied warranty of 14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15# GNU General Public License for more details. 16# 17# You should have received a copy of the GNU General Public License 18# along with this program. If not, see <http://www.gnu.org/licenses/>. 19# 20 21# creator 22owner=kwolf@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _rm_test_img "$TEST_IMG.snap" 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39. ./common.pattern 40 41# Any format supporting intenal snapshots 42_supported_fmt qcow2 43_supported_proto generic 44# Internal snapshots are (currently) impossible with refcount_bits=1, 45# and generally impossible with external data files 46_unsupported_imgopts 'refcount_bits=1[^0-9]' data_file 47 48offset_size=24 49offset_l1_size=36 50 51echo 52echo Test loading internal snapshots where the L1 table of the snapshot 53echo is smaller than the current L1 table. 54echo 55 56CLUSTER_SIZE=65536 57_make_test_img 64M 58$QEMU_IMG snapshot -c foo "$TEST_IMG" 59$QEMU_IO -c 'write -b 0 4k' "$TEST_IMG" | _filter_qemu_io 60$QEMU_IMG snapshot -a foo "$TEST_IMG" 61_check_test_img 62 63CLUSTER_SIZE=1024 64_make_test_img 16M 65$QEMU_IMG snapshot -c foo "$TEST_IMG" 66$QEMU_IO -c 'write -b 0 4M' "$TEST_IMG" | _filter_qemu_io 67$QEMU_IMG snapshot -a foo "$TEST_IMG" 68_check_test_img 69 70 71echo 72echo Try using a huge VM state 73echo 74 75CLUSTER_SIZE=65536 76_make_test_img 64M 77{ $QEMU_IO -c "write -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 78{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 79{ $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 80{ $QEMU_IO -c "read -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 81_check_test_img 82 83 84echo 85echo "qcow2_snapshot_load_tmp() should take the L1 size from the snapshot" 86echo 87 88CLUSTER_SIZE=512 89_make_test_img 64M 90{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 91poke_file "$TEST_IMG" "$offset_size" "\x00\x00\x00\x00\x00\x00\x02\x00" 92poke_file "$TEST_IMG" "$offset_l1_size" "\x00\x00\x00\x01" 93{ $QEMU_IMG convert -l foo $TEST_IMG $TEST_IMG.snap; } 2>&1 | _filter_qemu_io | _filter_testdir 94 95 96# success, all done 97echo "*** done" 98rm -f $seq.full 99status=0 100