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 $seq"
  26
  27 here=`pwd`
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32         _cleanup_test_img
  33     rm "$TEST_DIR/blkdebug.conf"
  34 }
  35 trap "_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 # Currently only qcow2 supports rebasing
  43 _supported_fmt qcow2
  44 _supported_proto file
  45 _supported_os Linux
  46 _default_cache_mode "writethrough"
  47 _supported_cache_modes "writethrough" "none"
  48 # The refcount table tests expect a certain minimum width for refcount entries
  49 # (so that the refcount table actually needs to grow); that minimum is 16 bits,
  50 # being the default refcount entry width.
  51 # 32 and 64 bits do not work either, however, due to different leaked cluster
  52 # count on error.
  53 # Thus, the only remaining option is refcount_bits=16.
  54 _unsupported_imgopts 'refcount_bits=\([^1]\|.\([^6]\|$\)\)'
  55
  56 echo "Errors while writing 128 kB"
  57 echo
  58
  59 CLUSTER_SIZE=1024
  60
  61 BLKDBG_TEST_IMG="blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG"
  62
  63 for event in \
  64     l1_update \
  65     \
  66     l2_load \
  67     l2_update \
  68     l2_alloc_write \
  69     \
  70     write_aio \
  71     \
  72     refblock_load \
  73     refblock_update_part \
  74     refblock_alloc \
  75     \
  76     cluster_alloc \
  77
  78 do
  79
  80 for errno in 5 28; do
  81 for imm in off; do
  82 for once in on off; do
  83 for vmstate in "" "-b"; do
  84
  85 cat > "$TEST_DIR/blkdebug.conf" <<EOF
  86 [inject-error]
  87 event = "$event"
  88 errno = "$errno"
  89 immediately = "$imm"
  90 once ="$once"
  91 EOF
  92
  93 _make_test_img 1G
  94
  95 echo
  96 echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate"
  97
  98 # We want to catch a simple L2 update, not the allocation of the first L2 table
  99 if [ "$event" == "l2_update" ]; then
 100     $QEMU_IO -c "write $vmstate 0 512" "$TEST_IMG" > /dev/null 2>&1
 101 fi
 102
 103 $QEMU_IO -c "write $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io
 104
 105 # l2_load is not called on allocation, so issue a second write
 106 # Reads are another path to trigger l2_load, so do a read, too
 107 if [ "$event" == "l2_load" ]; then
 108     $QEMU_IO -c "write $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io
 109     $QEMU_IO -c "read $vmstate 0 128k " "$BLKDBG_TEST_IMG" | _filter_qemu_io
 110 fi
 111
 112 _check_test_img 2>&1 | grep -v "refcount=1 reference=0"
 113
 114 done
 115 done
 116 done
 117 done
 118 done
 119
 120
 121 echo
 122 echo === Refcout table growth tests ===
 123 echo
 124 CLUSTER_SIZE=512
 125
 126
 127 for event in \
 128     refblock_alloc_hookup \
 129     refblock_alloc_write \
 130     refblock_alloc_write_blocks \
 131     refblock_alloc_write_table \
 132     refblock_alloc_switch_table \
 133
 134 do
 135
 136 # This one takes a while, so let's test only one error code (ENOSPC should
 137 # never be generated by qemu, so it's probably a good choice)
 138 for errno in 28; do
 139 for imm in off; do
 140 for once in on off; do
 141 for vmstate in "" "-b"; do
 142
 143 cat > "$TEST_DIR/blkdebug.conf" <<EOF
 144 [inject-error]
 145 event = "$event"
 146 errno = "$errno"
 147 immediately = "$imm"
 148 once = "$once"
 149 EOF
 150
 151 _make_test_img 1G
 152
 153 echo
 154 echo "Event: $event; errno: $errno; imm: $imm; once: $once; write $vmstate"
 155 $QEMU_IO -c "write $vmstate 0 64M" "$BLKDBG_TEST_IMG" | _filter_qemu_io
 156
 157 _check_test_img 2>&1 | grep -v "refcount=1 reference=0"
 158
 159 done
 160 done
 161 done
 162 done
 163 done
 164
 165 echo
 166 echo === L1 growth tests ===
 167 echo
 168 CLUSTER_SIZE=1024
 169
 170
 171 for event in \
 172     l1_grow_alloc_table \
 173     l1_grow_write_table \
 174     l1_grow_activate_table \
 175
 176 do
 177
 178 for errno in 5 28; do
 179 for imm in off; do
 180 for once in on off; do
 181
 182 cat > "$TEST_DIR/blkdebug.conf" <<EOF
 183 [inject-error]
 184 event = "$event"
 185 errno = "$errno"
 186 immediately = "$imm"
 187 once = "$once"
 188 EOF
 189
 190 _make_test_img 1G
 191
 192 echo
 193 echo "Event: $event; errno: $errno; imm: $imm; once: $once"
 194 $QEMU_IO -c "write -b 0 64k" "$BLKDBG_TEST_IMG" | _filter_qemu_io
 195
 196 _check_test_img 2>&1 | grep -v "refcount=1 reference=0"
 197
 198 done
 199 done
 200 done
 201 done
 202
 203 # success, all done
 204 echo "*** done"
 205 rm -f $seq.full
 206 status=0