1908eaf68SStefan Hajnoczi#!/bin/bash 23778057dSKevin Wolf# 33778057dSKevin Wolf# Combined test to grow the refcount table and test snapshots. 43778057dSKevin Wolf# 53778057dSKevin Wolf# Copyright (C) 2009 Red Hat, Inc. 63778057dSKevin Wolf# 73778057dSKevin Wolf# This program is free software; you can redistribute it and/or modify 83778057dSKevin Wolf# it under the terms of the GNU General Public License as published by 93778057dSKevin Wolf# the Free Software Foundation; either version 2 of the License, or 103778057dSKevin Wolf# (at your option) any later version. 113778057dSKevin Wolf# 123778057dSKevin Wolf# This program is distributed in the hope that it will be useful, 133778057dSKevin Wolf# but WITHOUT ANY WARRANTY; without even the implied warranty of 143778057dSKevin Wolf# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 153778057dSKevin Wolf# GNU General Public License for more details. 163778057dSKevin Wolf# 173778057dSKevin Wolf# You should have received a copy of the GNU General Public License 18e8c212d6SChristoph Hellwig# along with this program. If not, see <http://www.gnu.org/licenses/>. 193778057dSKevin Wolf# 203778057dSKevin Wolf 213778057dSKevin Wolf# creator 223778057dSKevin Wolfowner=kwolf@redhat.com 233778057dSKevin Wolf 243778057dSKevin Wolfseq=`basename $0` 253778057dSKevin Wolfecho "QA output created by $seq" 263778057dSKevin Wolf 273778057dSKevin Wolfhere=`pwd` 283778057dSKevin Wolftmp=/tmp/$$ 293778057dSKevin Wolfstatus=1 # failure is the default! 303778057dSKevin Wolf 313778057dSKevin Wolf_cleanup() 323778057dSKevin Wolf{ 33e021915aSChristoph Hellwig _cleanup_test_img 343778057dSKevin Wolf true 353778057dSKevin Wolf} 363778057dSKevin Wolftrap "_cleanup; exit \$status" 0 1 2 3 15 373778057dSKevin Wolf 383778057dSKevin Wolf# get standard environment, filters and checks 393778057dSKevin Wolf. ./common.rc 403778057dSKevin Wolf. ./common.filter 413778057dSKevin Wolf 42e76a8e89SChristoph Hellwig# actually any format that supports snapshots 433778057dSKevin Wolf_supported_fmt qcow2 449cdfa1b3SMORITA Kazutaka_supported_proto generic 453778057dSKevin Wolf_supported_os Linux 46*5262caa7SMax Reitz# Internal snapshots are (currently) impossible with refcount_bits=1 47*5262caa7SMax Reitz_unsupported_imgopts 'refcount_bits=1[^0-9]' 483778057dSKevin Wolf 493778057dSKevin Wolfecho 503778057dSKevin Wolfecho "creating image" 513778057dSKevin Wolf 523778057dSKevin Wolf# With 1k clusters a refcount block contains 512 clusters 533778057dSKevin Wolf# This makes 512k of the image file covered by a refcount block 543778057dSKevin Wolf# A refcount table that spans one clusters has 128 refcount 553778057dSKevin Wolf# tables which makes up 64M in the image file. 563778057dSKevin Wolf# 573778057dSKevin Wolf# We use a 36M image, so initially we can be sure that only one cluster is used 583778057dSKevin Wolf# for the refcount table. On the other hand this is big enough to cause a 593778057dSKevin Wolf# refcount table growth when rewriting the image after creating one snapshot. 603778057dSKevin Wolfsize=36M 61bfe85248SKevin WolfCLUSTER_SIZE=1k 62bfe85248SKevin Wolf_make_test_img $size 633778057dSKevin Wolf 643778057dSKevin Wolf# Create two snapshots which fill the image with two different patterns 653778057dSKevin Wolfecho "creating first snapshot" 66fef9c191SJeff Cody$QEMU_IO -c "aio_write -P 123 0 $size" "$TEST_IMG" | _filter_qemu_io 67fef9c191SJeff Cody$QEMU_IMG snapshot -c snap1 "$TEST_IMG" 683778057dSKevin Wolfecho "creating second snapshot" 69fef9c191SJeff Cody$QEMU_IO -c "aio_write -P 165 0 $size" "$TEST_IMG" | _filter_qemu_io 70fef9c191SJeff Cody$QEMU_IMG snapshot -c snap2 "$TEST_IMG" 713778057dSKevin Wolf 723778057dSKevin Wolf# Now check the pattern 733778057dSKevin Wolfecho "checking first snapshot" 74fef9c191SJeff Cody$QEMU_IMG snapshot -a snap1 "$TEST_IMG" 75fef9c191SJeff Cody$QEMU_IO -c "aio_read -P 123 0 $size" "$TEST_IMG" | _filter_qemu_io 763778057dSKevin Wolfecho "checking second snapshot" 77fef9c191SJeff Cody$QEMU_IMG snapshot -a snap2 "$TEST_IMG" 78fef9c191SJeff Cody$QEMU_IO -c "aio_read -P 165 0 $size" "$TEST_IMG" | _filter_qemu_io 793778057dSKevin Wolf 803778057dSKevin Wolfecho 813778057dSKevin Wolfecho "checking image for errors" 823778057dSKevin Wolf_check_test_img 833778057dSKevin Wolf 843778057dSKevin Wolf# success, all done 853778057dSKevin Wolfecho "*** done" 863778057dSKevin Wolfrm -f $seq.full 873778057dSKevin Wolfstatus=0 88