tests/qemu-iotests/177

   1 #!/usr/bin/env bash
   2 #
   3 # Test corner cases with unusual block geometries
   4 #
   5 # Copyright (C) 2016-2018 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=eblake@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 status=1        # failure is the default!
  28
  29 _cleanup()
  30 {
  31         _cleanup_test_img
  32 }
  33 trap "_cleanup; exit \$status" 0 1 2 3 15
  34
  35 # get standard environment, filters and checks
  36 . ./common.rc
  37 . ./common.filter
  38
  39 # This test is runnable under compat=0.10; see test 204 for additional
  40 # tests specific to compat=1.1.
  41
  42 _supported_fmt qcow2
  43 _supported_proto file
  44
  45 CLUSTER_SIZE=1M
  46 size=128M
  47 options=driver=blkdebug,image.driver=qcow2
  48
  49 echo
  50 echo "== setting up files =="
  51
  52 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  53 $QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io
  54 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT
  55 $QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io
  56
  57 # Limited to 64k max-transfer
  58 echo
  59 echo "== constrained alignment and max-transfer =="
  60 limits=align=4k,max-transfer=64k
  61 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  62          -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io
  63
  64 echo
  65 echo "== write zero with constrained max-transfer =="
  66 limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE
  67 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  68          -c "write -z 8003584 2093056" | _filter_qemu_io
  69
  70 # non-power-of-2 write-zero/discard alignments
  71 echo
  72 echo "== non-power-of-2 write zeroes limits =="
  73
  74 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
  75 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  76          -c "write -z 32M 32M" | _filter_qemu_io
  77
  78 echo
  79 echo "== non-power-of-2 discard limits =="
  80
  81 limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M
  82 $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \
  83          -c "discard 80000001 30M" | _filter_qemu_io
  84
  85 echo
  86 echo "== verify image content =="
  87
  88 verify_io()
  89 {
  90     if ($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" |
  91             grep "compat: 0.10" > /dev/null); then
  92         # In v2 images clusters are not discarded when there is a backing file
  93         # so the previous value is read
  94         discarded=22
  95     else
  96         # Discarded clusters are zeroed for v3 or later
  97         discarded=0
  98     fi
  99
 100     echo read -P 22 0 1000
 101     echo read -P 33 1000 128k
 102     echo read -P 22 132072 7871512
 103     echo read -P 0 8003584 2093056
 104     echo read -P 22 10096640 23457792
 105     echo read -P 0 32M 32M
 106     echo read -P 22 64M 13M
 107     echo read -P $discarded 77M 29M
 108     echo read -P 22 106M 22M
 109 }
 110
 111 verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io
 112
 113 _check_test_img
 114
 115 # success, all done
 116 echo "*** done"
 117 status=0