tests/qemu-iotests/005

   1 #!/usr/bin/env bash
   2 #
   3 # Make sure qemu-img can create 5TB images
   4 #
   5 # Based on a testcase from Chris Wright,
   6 # https://bugzilla.redhat.com/show_bug.cgi?id=491943
   7 #
   8 # Copyright (C) 2009 Red Hat, Inc.
   9 #
  10 # This program is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # This program is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 #
  23
  24 # creator
  25 owner=hch@lst.de
  26
  27 seq=`basename $0`
  28 echo "QA output created by $seq"
  29
  30 status=1        # failure is the default!
  31
  32 _cleanup()
  33 {
  34         _cleanup_test_img
  35 }
  36 trap "_cleanup; exit \$status" 0 1 2 3 15
  37
  38 # get standard environment, filters and checks
  39 . ./common.rc
  40 . ./common.filter
  41
  42 _supported_fmt generic
  43 _supported_proto generic
  44 _supported_os Linux
  45 _unsupported_imgopts "subformat=twoGbMaxExtentFlat" \
  46                      "subformat=twoGbMaxExtentSparse" \
  47                      "subformat=streamOptimized"
  48
  49 # vpc is limited to 127GB, so we can't test it here
  50 if [ "$IMGFMT" = "vpc" ]; then
  51     _notrun "image format $IMGFMT does not support large image sizes"
  52 fi
  53
  54 # sheepdog image is limited to 4TB, so we can't test it here
  55 if [ "$IMGPROTO" = "sheepdog" ]; then
  56     _notrun "image protocol $IMGPROTO does not support large image sizes"
  57 fi
  58
  59 # Sanity check: For raw, we require a file system that permits the creation
  60 # of a HUGE (but very sparse) file. Check we can create it before continuing.
  61 if [ "$IMGFMT" = "raw" ]; then
  62     if ! truncate --size=5T "$TEST_IMG"; then
  63         _notrun "file system on $TEST_DIR does not support large enough files"
  64     fi
  65     rm "$TEST_IMG"
  66 fi
  67
  68 echo
  69 echo "creating large image"
  70 _make_test_img 5000G
  71
  72 echo
  73 echo "small read"
  74 $QEMU_IO -c "read 1024 4096" "$TEST_IMG" | _filter_qemu_io
  75
  76 echo
  77 echo "small write"
  78 $QEMU_IO -c "write 8192 4096" "$TEST_IMG" | _filter_qemu_io
  79
  80 # success, all done
  81 echo "*** done"
  82 rm -f $seq.full
  83 status=0