tests/qemu-iotests/026

   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
  22 owner=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 here=`pwd`
  28 tmp=/tmp/$$
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33         _cleanup_test_img
  34     rm "$TEST_DIR/blkdebug.conf"
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41 . ./common.pattern
  42
  43 # Currently only qcow2 supports rebasing
  44 _supported_fmt qcow2
  45 _supported_proto generic
  46 _supported_os Linux
  47
  48
  49 echo "Errors while writing 128 kB"
  50 echo
  51
  52 CLUSTER_SIZE=1024
  53
  54 BLKDBG_TEST_IMG="blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG"
  55
  56 for event in \
  57     l1_update \
  58     \
  59     l2_load \
  60     l2_update \
  61     l2_alloc.write \
  62     \
  63     write_aio \
  64     \
  65     refblock_load \
  66     refblock_update_part \
  67     refblock_alloc \
  68     \
  69     cluster_alloc \
  70
  71 do
  72
  73 for errno in 5 28; do
  74 for imm in off; do
  75 for once in on off; do
  76 for vmstate in "" "-b"; do
  77
  78 cat > "$TEST_DIR/blkdebug.conf" <<EOF
  79 [inject-error]
  80 event = "$event"
  81 errno = "$errno"
  82 immediately = "$imm"
  83 once ="$once"
  84 EOF
  85
  86 _make_test_img 1G
  87
  88 echo
  89 echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate"
  90
  91 # We want to catch a simple L2 update, not the allocation of the first L2 table
  92 if [ "$event" == "l2_update" ]; then
  93     $QEMU_IO -c "write $vmstate 0 512" "$TEST_IMG" > /dev/null 2>&1
  94 fi
  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
 100 if [ "$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
 103 fi
 104
 105 _check_test_img 2>&1 | grep -v "refcount=1 reference=0"
 106
 107 done
 108 done
 109 done
 110 done
 111 done
 112
 113
 114 echo
 115 echo === Refcout table growth tests ===
 116 echo
 117 CLUSTER_SIZE=512
 118
 119
 120 for 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
 127 do
 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)
 131 for errno in 28; do
 132 for imm in off; do
 133 for once in on off; do
 134 for vmstate in "" "-b"; do
 135
 136 cat > "$TEST_DIR/blkdebug.conf" <<EOF
 137 [inject-error]
 138 event = "$event"
 139 errno = "$errno"
 140 immediately = "$imm"
 141 once = "$once"
 142 EOF
 143
 144 _make_test_img 1G
 145
 146 echo
 147 echo "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
 152 done
 153 done
 154 done
 155 done
 156 done
 157
 158 echo
 159 echo === L1 growth tests ===
 160 echo
 161 CLUSTER_SIZE=1024
 162
 163
 164 for event in \
 165     l1_grow.alloc_table \
 166     l1_grow.write_table \
 167     l1_grow.activate_table \
 168
 169 do
 170
 171 for errno in 5 28; do
 172 for imm in off; do
 173 for once in on off; do
 174
 175 cat > "$TEST_DIR/blkdebug.conf" <<EOF
 176 [inject-error]
 177 event = "$event"
 178 errno = "$errno"
 179 immediately = "$imm"
 180 once = "$once"
 181 EOF
 182
 183 _make_test_img 1G
 184
 185 echo
 186 echo "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
 191 done
 192 done
 193 done
 194 done
 195
 196 # success, all done
 197 echo "*** done"
 198 rm -f $seq.full
 199 status=0