tests/qemu-iotests/029

   1 #!/usr/bin/env bash
   2 #
   3 # qcow2 internal snapshots/VM state tests
   4 #
   5 # Copyright (C) 2011 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 $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31     _rm_test_img "$TEST_IMG.snap"
  32     _cleanup_test_img
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39 . ./common.pattern
  40
  41 # Any format supporting intenal snapshots
  42 _supported_fmt qcow2
  43 _supported_proto generic
  44 # Internal snapshots are (currently) impossible with refcount_bits=1,
  45 # and generally impossible with external data files
  46 _unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
  47
  48 offset_size=24
  49 offset_l1_size=36
  50
  51 echo
  52 echo Test loading internal snapshots where the L1 table of the snapshot
  53 echo is smaller than the current L1 table.
  54 echo
  55
  56 CLUSTER_SIZE=65536
  57 _make_test_img 64M
  58 $QEMU_IMG snapshot -c foo "$TEST_IMG"
  59 $QEMU_IO -c 'write -b 0 4k' "$TEST_IMG" | _filter_qemu_io
  60 $QEMU_IMG snapshot -a foo "$TEST_IMG"
  61 _check_test_img
  62
  63 CLUSTER_SIZE=1024
  64 _make_test_img 16M
  65 $QEMU_IMG snapshot -c foo "$TEST_IMG"
  66 $QEMU_IO -c 'write -b 0 4M' "$TEST_IMG" | _filter_qemu_io
  67 $QEMU_IMG snapshot -a foo "$TEST_IMG"
  68 _check_test_img
  69
  70
  71 echo
  72 echo Try using a huge VM state
  73 echo
  74
  75 CLUSTER_SIZE=65536
  76 _make_test_img 64M
  77 { $QEMU_IO -c "write -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
  78 { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
  79 { $QEMU_IMG snapshot -a foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
  80 { $QEMU_IO -c "read -b -P 0x11 1T 4k" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
  81 _check_test_img
  82
  83
  84 echo
  85 echo "qcow2_snapshot_load_tmp() should take the L1 size from the snapshot"
  86 echo
  87
  88 CLUSTER_SIZE=512
  89 _make_test_img 64M
  90 { $QEMU_IMG snapshot -c foo $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
  91 poke_file "$TEST_IMG" "$offset_size" "\x00\x00\x00\x00\x00\x00\x02\x00"
  92 poke_file "$TEST_IMG" "$offset_l1_size" "\x00\x00\x00\x01"
  93 { $QEMU_IMG convert -l foo $TEST_IMG $TEST_IMG.snap; } 2>&1 | _filter_qemu_io | _filter_testdir
  94
  95
  96 # success, all done
  97 echo "*** done"
  98 rm -f $seq.full
  99 status=0