tests/qemu-iotests/177

   1 #!/usr/bin/env bash
   2 # group: rw auto quick
   3 #
   4 # Test corner cases with unusual block geometries
   5 #
   6 # Copyright (C) 2016-2018 Red Hat, Inc.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22 # creator
  23 owner=eblake@redhat.com
  24
  25 seq=`basename $0`
  26 echo "QA output created by $seq"
  27
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32         _cleanup_test_img
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39
  40 # This test is runnable under compat=0.10; see test 204 for additional
  41 # tests specific to compat=1.1.
  42
  43 _supported_fmt qcow2
  44 _supported_proto file fuse
  45
  46 CLUSTER_SIZE=1M
  47 size=128M
  48 options=driver=blkdebug,image.driver=qcow2
  49
  50 echo
  51 echo "== setting up files =="
  52
  53 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  54 $QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io
  55 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
  56 $QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io
  57
  58 # Limited to 64k max-transfer
  59 echo
  60 echo "== constrained alignment and max-transfer =="
  61 limits=align=4k,max-transfer=64k
  62 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  63          -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io
  64
  65 echo
  66 echo "== write zero with constrained max-transfer =="
  67 limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE
  68 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  69          -c "write -z 8003584 2093056" | _filter_qemu_io
  70
  71 # non-power-of-2 write-zero/discard alignments
  72 echo
  73 echo "== non-power-of-2 write zeroes limits =="
  74
  75 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
  76 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  77          -c "write -z 32M 32M" | _filter_qemu_io
  78
  79 echo
  80 echo "== non-power-of-2 discard limits =="
  81
  82 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
  83 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  84          -c "discard 80000001 30M" | _filter_qemu_io
  85
  86 echo
  87 echo "== verify image content =="
  88
  89 verify_io()
  90 {
  91     if ($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" |
  92             grep "compat: 0.10" > /dev/null); then
  93         # In v2 images clusters are not discarded when there is a backing file
  94         # so the previous value is read
  95         discarded=22
  96     else
  97         # Discarded clusters are zeroed for v3 or later
  98         discarded=0
  99     fi
 100
 101     echo read -P 22 0 1000
 102     echo read -P 33 1000 128k
 103     echo read -P 22 132072 7871512
 104     echo read -P 0 8003584 2093056
 105     echo read -P 22 10096640 23457792
 106     echo read -P 0 32M 32M
 107     echo read -P 22 64M 13M
 108     echo read -P $discarded 77M 29M
 109     echo read -P 22 106M 22M
 110 }
 111
 112 verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io
 113
 114 _check_test_img
 115
 116 # success, all done
 117 echo "*** done"
 118 status=0