1#!/bin/bash 2# 3# Test corner cases with unusual block geometries 4# 5# Copyright (C) 2016-2017 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 22owner=eblake@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27here=`pwd` 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40_supported_fmt qcow2 41_supported_proto file 42 43CLUSTER_SIZE=1M 44size=128M 45options=driver=blkdebug,image.driver=qcow2 46nested_opts=image.file.driver=file,image.file.filename=$TEST_IMG 47 48echo 49echo "== setting up files ==" 50 51TEST_IMG="$TEST_IMG.base" _make_test_img $size 52$QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io 53_make_test_img -b "$TEST_IMG.base" 54$QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io 55 56# Limited to 64k max-transfer 57echo 58echo "== constrained alignment and max-transfer ==" 59limits=align=4k,max-transfer=64k 60$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 61 -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io 62 63echo 64echo "== write zero with constrained max-transfer ==" 65limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE 66$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 67 -c "write -z 8003584 2093056" | _filter_qemu_io 68 69# non-power-of-2 write-zero/discard alignments 70echo 71echo "== non-power-of-2 write zeroes limits ==" 72 73limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 74$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 75 -c "write -z 32M 32M" | _filter_qemu_io 76 77echo 78echo "== non-power-of-2 discard limits ==" 79 80limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 81$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 82 -c "discard 80000001 30M" | _filter_qemu_io 83 84echo 85echo "== verify image content ==" 86 87function verify_io() 88{ 89 if ($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | 90 grep "compat: 0.10" > /dev/null); then 91 # For v2 images, discarded clusters are read from the backing file 92 discarded=11 93 else 94 # Discarded clusters are zeroed for v3 or later 95 discarded=0 96 fi 97 98 echo read -P 22 0 1000 99 echo read -P 33 1000 128k 100 echo read -P 22 132072 7871512 101 echo read -P 0 8003584 2093056 102 echo read -P 22 10096640 23457792 103 echo read -P 0 32M 32M 104 echo read -P 22 64M 13M 105 echo read -P $discarded 77M 29M 106 echo read -P 22 106M 22M 107} 108 109verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io 110$QEMU_IMG map --image-opts "$options,$nested_opts,align=4k" \ 111 | _filter_qemu_img_map 112 113_check_test_img 114 115# success, all done 116echo "*** done" 117status=0 118