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 23owner=eblake@redhat.com 24 25seq=`basename $0` 26echo "QA output created by $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40# This test is runnable under compat=0.10; see test 204 for additional 41# tests specific to compat=1.1. 42 43_supported_fmt qcow2 44_supported_proto file fuse 45 46CLUSTER_SIZE=1M 47size=128M 48options=driver=blkdebug,image.driver=qcow2 49 50echo 51echo "== setting up files ==" 52 53TEST_IMG="$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 59echo 60echo "== constrained alignment and max-transfer ==" 61limits=align=4k,max-transfer=64k 62$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 63 -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io 64 65echo 66echo "== write zero with constrained max-transfer ==" 67limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE 68$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 69 -c "write -z 8003584 2093056" | _filter_qemu_io 70 71# non-power-of-2 write-zero/discard alignments 72echo 73echo "== non-power-of-2 write zeroes limits ==" 74 75limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 76$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 77 -c "write -z 32M 32M" | _filter_qemu_io 78 79echo 80echo "== non-power-of-2 discard limits ==" 81 82limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 83$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 84 -c "discard 80000001 30M" | _filter_qemu_io 85 86echo 87echo "== verify image content ==" 88 89verify_io() 90{ 91 if ($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 112verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io 113 114_check_test_img 115 116# success, all done 117echo "*** done" 118status=0 119