1#!/bin/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 22owner=eblake@redhat.com 23 24seq=`basename $0` 25echo "QA output created by $seq" 26 27here=`pwd` 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40_supported_fmt qcow2 41_supported_proto file 42# This test assumes that discard leaves zero clusters; see test 177 for 43# other tests that also work in older images 44_unsupported_imgopts 'compat=0.10' 45 46CLUSTER_SIZE=1M 47size=128M 48options=driver=blkdebug,image.driver=qcow2 49nested_opts=image.file.driver=file,image.file.filename=$TEST_IMG 50 51echo 52echo "== setting up files ==" 53 54TEST_IMG="$TEST_IMG.base" _make_test_img $size 55$QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io 56_make_test_img -b "$TEST_IMG.base" 57$QEMU_IO -c "write -P 22 0 110M" "$TEST_IMG" | _filter_qemu_io 58 59# Limited to 64k max-transfer 60echo 61echo "== constrained alignment and max-transfer ==" 62limits=align=4k,max-transfer=64k 63$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 64 -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io 65 66echo 67echo "== write zero with constrained max-transfer ==" 68limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE 69$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 70 -c "write -z 8003584 2093056" | _filter_qemu_io 71 72# non-power-of-2 write-zero/discard alignments 73echo 74echo "== non-power-of-2 write zeroes limits ==" 75 76limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 77$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 78 -c "write -z 32M 32M" | _filter_qemu_io 79 80echo 81echo "== non-power-of-2 discard limits ==" 82 83limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 84$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 85 -c "discard 80000001 30M" | _filter_qemu_io 86 87echo 88echo "== block status smaller than alignment ==" 89limits=align=4k 90$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 91 -c "alloc 1 1" -c "alloc 0x6dffff0 1000" -c "alloc 127m 5P" \ 92 -c map | _filter_qemu_io 93 94echo 95echo "== verify image content ==" 96 97function verify_io() 98{ 99 echo read -P 22 0 1000 100 echo read -P 33 1000 128k 101 echo read -P 22 132072 7871512 102 echo read -P 0 8003584 2093056 103 echo read -P 22 10096640 23457792 104 echo read -P 0 32M 32M 105 echo read -P 22 64M 13M 106 echo read -P 0 77M 29M 107 echo read -P 22 106M 4M 108 echo read -P 11 110M 18M 109} 110 111verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io 112$QEMU_IMG map --image-opts "$options,$nested_opts,align=4k" \ 113 | _filter_qemu_img_map 114 115_check_test_img 116 117# success, all done 118echo "*** done" 119status=0 120