1#!/bin/bash 2# 3# Test qcow2 reopen 4# 5# Copyright (C) 2015 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 $seq" 26 27here="$PWD" 28status=1 # failure is the default! 29 30_cleanup() 31{ 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.qemu 40 41_supported_fmt qcow2 42_supported_proto file 43_supported_os Linux 44# We are going to use lazy-refcounts 45_unsupported_imgopts 'compat=0.10' 46 47 48_make_test_img 64M 49 50echo === Try setting valid values for all options === 51echo 52 53# Try all options and then check that all of the basic I/O operations still 54# work on this image. 55$QEMU_IO \ 56 -c "reopen -o lazy-refcounts=on,pass-discard-request=on" \ 57 -c "reopen -o lazy-refcounts=off,pass-discard-request=off" \ 58 -c "reopen -o pass-discard-snapshot=on,pass-discard-other=on" \ 59 -c "reopen -o pass-discard-snapshot=off,pass-discard-other=off" \ 60 -c "reopen -o overlap-check=all" \ 61 -c "reopen -o overlap-check=none" \ 62 -c "reopen -o overlap-check=cached" \ 63 -c "reopen -o overlap-check=constant" \ 64 -c "reopen -o overlap-check.template=all" \ 65 -c "reopen -o overlap-check.template=none" \ 66 -c "reopen -o overlap-check.template=cached" \ 67 -c "reopen -o overlap-check.template=constant" \ 68 -c "reopen -o overlap-check.main-header=on" \ 69 -c "reopen -o overlap-check.main-header=off" \ 70 -c "reopen -o overlap-check.active-l1=on" \ 71 -c "reopen -o overlap-check.active-l1=off" \ 72 -c "reopen -o overlap-check.active-l2=on" \ 73 -c "reopen -o overlap-check.active-l2=off" \ 74 -c "reopen -o overlap-check.refcount-table=on" \ 75 -c "reopen -o overlap-check.refcount-table=off" \ 76 -c "reopen -o overlap-check.refcount-block=on" \ 77 -c "reopen -o overlap-check.refcount-block=off" \ 78 -c "reopen -o overlap-check.snapshot-table=on" \ 79 -c "reopen -o overlap-check.snapshot-table=off" \ 80 -c "reopen -o overlap-check.inactive-l1=on" \ 81 -c "reopen -o overlap-check.inactive-l1=off" \ 82 -c "reopen -o overlap-check.inactive-l2=on" \ 83 -c "reopen -o overlap-check.inactive-l2=off" \ 84 -c "reopen -o cache-size=1M" \ 85 -c "reopen -o l2-cache-size=512k" \ 86 -c "reopen -o l2-cache-entry-size=512" \ 87 -c "reopen -o l2-cache-entry-size=4k" \ 88 -c "reopen -o l2-cache-entry-size=64k" \ 89 -c "reopen -o refcount-cache-size=128k" \ 90 -c "reopen -o cache-clean-interval=5" \ 91 -c "reopen -o cache-clean-interval=0" \ 92 -c "reopen -o cache-clean-interval=10" \ 93 \ 94 -c "write -P 55 0 32M" \ 95 -c "read -P 55 0 32M" \ 96 -c "discard 0 32M" \ 97 -c "write -z 0 32M" \ 98 -c "read -P 0 0 32M" \ 99 \ 100 "$TEST_IMG" | _filter_qemu_io 101 102 103echo 104echo === Try setting some invalid values === 105echo 106 107$QEMU_IO \ 108 -c "reopen -o lazy-refcounts=42" \ 109 -c "reopen -o cache-size=1M,l2-cache-size=64k,refcount-cache-size=64k" \ 110 -c "reopen -o cache-size=1M,l2-cache-size=2M" \ 111 -c "reopen -o cache-size=1M,refcount-cache-size=2M" \ 112 -c "reopen -o l2-cache-entry-size=33k" \ 113 -c "reopen -o l2-cache-entry-size=128k" \ 114 -c "reopen -o refcount-cache-size=256T" \ 115 -c "reopen -o overlap-check=constant,overlap-check.template=all" \ 116 -c "reopen -o overlap-check=blubb" \ 117 -c "reopen -o overlap-check.template=blubb" \ 118 -c "reopen -o cache-clean-interval=-1" \ 119 "$TEST_IMG" | _filter_qemu_io 120 121IMGOPTS="cluster_size=256k" _make_test_img 32P 122$QEMU_IO \ 123 -c "reopen -o l2-cache-entry-size=512,l2-cache-size=1T" \ 124 "$TEST_IMG" | _filter_qemu_io 125 126_make_test_img 64M 127 128echo 129echo === Test transaction semantics === 130echo 131 132# Whether lazy-refcounts was actually enabled can easily be tested: Check if 133# the dirty bit is set after a crash 134$QEMU_IO \ 135 -c "reopen -o lazy-refcounts=on,overlap-check=blubb" \ 136 -c "write -P 0x5a 0 512" \ 137 -c "sigraise $(kill -l KILL)" \ 138 "$TEST_IMG" 2>&1 | _filter_qemu_io 139 140# The dirty bit must not be set 141$PYTHON qcow2.py "$TEST_IMG" dump-header | grep incompatible_features 142 143# Similarly we can test whether corruption detection has been enabled: 144# Create L1/L2, overwrite first entry in refcount block, allocate something. 145# Disabling the checks should fail, so the corruption must be detected. 146_make_test_img 64M 147$QEMU_IO -c "write 0 64k" "$TEST_IMG" | _filter_qemu_io 148poke_file "$TEST_IMG" "$((0x20000))" "\x00\x00" 149$QEMU_IO \ 150 -c "reopen -o overlap-check=none,lazy-refcounts=42" \ 151 -c "write 64k 64k" \ 152 "$TEST_IMG" 2>&1 | _filter_qemu_io 153 154# success, all done 155echo '*** done' 156rm -f $seq.full 157status=0 158