| 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 |