1#!/usr/bin/env bash 2# group: rw auto quick 3# 4# qcow2 internal snapshots/VM state tests 5# 6# Copyright (C) 2011 Red Hat, Inc. 7# 8# This program is free software; you can redistribute it and/or modify 9# it under the terms of the GNU General Public License as published by 10# the Free Software Foundation; either version 2 of the License, or 11# (at your option) any later version. 12# 13# This program is distributed in the hope that it will be useful, 14# but WITHOUT ANY WARRANTY; without even the implied warranty of 15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16# GNU General Public License for more details. 17# 18# You should have received a copy of the GNU General Public License 19# along with this program. If not, see <http://www.gnu.org/licenses/>. 20# 21 22# creator 23owner=kwolf@redhat.com 24 25seq=`basename $0` 26echo "QA output created by $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _rm_test_img "$TEST_IMG.snap" 33 _cleanup_test_img 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38. ./common.rc 39. ./common.filter 40. ./common.pattern 41 42# Any format supporting intenal snapshots 43_supported_fmt qcow2 44_supported_proto generic 45# Internal snapshots are (currently) impossible with refcount_bits=1, 46# and generally impossible with external data files 47_unsupported_imgopts 'refcount_bits=1[^0-9]' data_file 48 49offset_size=24 50offset_l1_size=36 51 52echo 53echo Test loading internal snapshots where the L1 table of the snapshot 54echo is smaller than the current L1 table. 55echo 56 57CLUSTER_SIZE=65536 58_make_test_img 64M 59$QEMU_IMG snapshot -c foo "$TEST_IMG" 60$QEMU_IO -c 'write -b 0 4k' "$TEST_IMG" | _filter_qemu_io 61$QEMU_IMG snapshot -a foo "$TEST_IMG" 62_check_test_img 63 64CLUSTER_SIZE=1024 65_make_test_img 16M 66$QEMU_IMG snapshot -c foo "$TEST_IMG" 67$QEMU_IO -c 'write -b 0 4M' "$TEST_IMG" | _filter_qemu_io 68$QEMU_IMG snapshot -a foo "$TEST_IMG" 69_check_test_img 70 71 72echo 73echo Try using a huge VM state 74echo 75 76CLUSTER_SIZE=65536 77_make_test_img 64M 78{ $QEMU_IO -c "write -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 79{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 80{ $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 81{ $QEMU_IO -c "read -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 82_check_test_img 83 84 85echo 86echo "qcow2_snapshot_load_tmp() should take the L1 size from the snapshot" 87echo 88 89CLUSTER_SIZE=512 90_make_test_img 64M 91{ $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir 92poke_file "$TEST_IMG" "$offset_size" "\x00\x00\x00\x00\x00\x00\x02\x00" 93poke_file "$TEST_IMG" "$offset_l1_size" "\x00\x00\x00\x01" 94{ $QEMU_IMG convert -l foo $TEST_IMG $TEST_IMG.snap; } 2>&1 | _filter_qemu_io | _filter_testdir 95 96 97# success, all done 98echo "*** done" 99rm -f $seq.full 100status=0 101