1#!/bin/bash 2# 3# qcow2 error path testing 4# 5# Copyright (C) 2010 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` 28tmp=/tmp/$$ 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34 rm "$TEST_DIR/blkdebug.conf" 35} 36trap "_cleanup; exit \$status" 0 1 2 3 15 37 38# get standard environment, filters and checks 39. ./common.rc 40. ./common.filter 41. ./common.pattern 42 43# Currently only qcow2 supports rebasing 44_supported_fmt qcow2 45_supported_proto generic 46_supported_os Linux 47 48 49echo "Errors while writing 128 kB" 50echo 51 52CLUSTER_SIZE=1024 53 54BLKDBG_TEST_IMG="blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG" 55 56for event in \ 57 l1_update \ 58 \ 59 l2_load \ 60 l2_update \ 61 l2_alloc.write \ 62 \ 63 write_aio \ 64 \ 65 refblock_load \ 66 refblock_update_part \ 67 refblock_alloc \ 68 \ 69 cluster_alloc \ 70 71do 72 73for errno in 5 28; do 74for imm in off; do 75for once in on off; do 76for vmstate in "" "-b"; do 77 78cat > "$TEST_DIR/blkdebug.conf" <<EOF 79[inject-error] 80event = "$event" 81errno = "$errno" 82immediately = "$imm" 83once ="$once" 84EOF 85 86_make_test_img 1G 87 88echo 89echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate" 90 91# We want to catch a simple L2 update, not the allocation of the first L2 table 92if [ "$event" == "l2_update" ]; then 93 $QEMU_IO -c "write $vmstate 0 512" "$TEST_IMG" > /dev/null 2>&1 94fi 95 96$QEMU_IO -c "write $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io 97 98# l2_load is not called on allocation, so issue a second write 99# Reads are another path to trigger l2_load, so do a read, too 100if [ "$event" == "l2_load" ]; then 101 $QEMU_IO -c "write $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io 102 $QEMU_IO -c "read $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io 103fi 104 105_check_test_img 2>&1 | grep -v "refcount=1 reference=0" 106 107done 108done 109done 110done 111done 112 113 114echo 115echo === Refcout table growth tests === 116echo 117CLUSTER_SIZE=512 118 119 120for event in \ 121 refblock_alloc.hookup \ 122 refblock_alloc.write \ 123 refblock_alloc.write_blocks \ 124 refblock_alloc.write_table \ 125 refblock_alloc.switch_table \ 126 127do 128 129# This one takes a while, so let's test only one error code (ENOSPC should 130# never be generated by qemu, so it's probably a good choice) 131for errno in 28; do 132for imm in off; do 133for once in on off; do 134for vmstate in "" "-b"; do 135 136cat > "$TEST_DIR/blkdebug.conf" <<EOF 137[inject-error] 138event = "$event" 139errno = "$errno" 140immediately = "$imm" 141once = "$once" 142EOF 143 144_make_test_img 1G 145 146echo 147echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate" 148$QEMU_IO -c "write $vmstate 0 64M" "$BLKDBG_TEST_IMG" | _filter_qemu_io 149 150_check_test_img 2>&1 | grep -v "refcount=1 reference=0" 151 152done 153done 154done 155done 156done 157 158echo 159echo === L1 growth tests === 160echo 161CLUSTER_SIZE=1024 162 163 164for event in \ 165 l1_grow.alloc_table \ 166 l1_grow.write_table \ 167 l1_grow.activate_table \ 168 169do 170 171for errno in 5 28; do 172for imm in off; do 173for once in on off; do 174 175cat > "$TEST_DIR/blkdebug.conf" <<EOF 176[inject-error] 177event = "$event" 178errno = "$errno" 179immediately = "$imm" 180once = "$once" 181EOF 182 183_make_test_img 1G 184 185echo 186echo "Event: $event; errno: $errno; imm: $imm; once: $once" 187$QEMU_IO -c "write -b 0 64k" "$BLKDBG_TEST_IMG" | _filter_qemu_io 188 189_check_test_img 2>&1 | grep -v "refcount=1 reference=0" 190 191done 192done 193done 194done 195 196# success, all done 197echo "*** done" 198rm -f $seq.full 199status=0 200