1#!/usr/bin/env 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 $seq" 26 27status=1 # failure is the default! 28 29_cleanup() 30{ 31 _cleanup_test_img 32} 33trap "_cleanup; exit \$status" 0 1 2 3 15 34 35# get standard environment, filters and checks 36. ./common.rc 37. ./common.filter 38 39# This test is runnable under compat=0.10; see test 204 for additional 40# tests specific to compat=1.1. 41 42_supported_fmt qcow2 43_supported_proto file fuse 44 45CLUSTER_SIZE=1M 46size=128M 47options=driver=blkdebug,image.driver=qcow2 48 49echo 50echo "== setting up files ==" 51 52TEST_IMG="$TEST_IMG.base" _make_test_img $size 53$QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io 54_make_test_img -b "$TEST_IMG.base" -F $IMGFMT 55$QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io 56 57# Limited to 64k max-transfer 58echo 59echo "== constrained alignment and max-transfer ==" 60limits=align=4k,max-transfer=64k 61$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 62 -c "write -P 33 1000 128k" -c "read -P 33 1000 128k" | _filter_qemu_io 63 64echo 65echo "== write zero with constrained max-transfer ==" 66limits=align=512,max-transfer=64k,opt-write-zero=$CLUSTER_SIZE 67$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 68 -c "write -z 8003584 2093056" | _filter_qemu_io 69 70# non-power-of-2 write-zero/discard alignments 71echo 72echo "== non-power-of-2 write zeroes limits ==" 73 74limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 75$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 76 -c "write -z 32M 32M" | _filter_qemu_io 77 78echo 79echo "== non-power-of-2 discard limits ==" 80 81limits=align=512,opt-write-zero=15M,max-write-zero=15M,opt-discard=15M,max-discard=15M 82$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ 83 -c "discard 80000001 30M" | _filter_qemu_io 84 85echo 86echo "== verify image content ==" 87 88verify_io() 89{ 90 if ($QEMU_IMG info -f "$IMGFMT" "$TEST_IMG" | 91 grep "compat: 0.10" > /dev/null); then 92 # In v2 images clusters are not discarded when there is a backing file 93 # so the previous value is read 94 discarded=22 95 else 96 # Discarded clusters are zeroed for v3 or later 97 discarded=0 98 fi 99 100 echo read -P 22 0 1000 101 echo read -P 33 1000 128k 102 echo read -P 22 132072 7871512 103 echo read -P 0 8003584 2093056 104 echo read -P 22 10096640 23457792 105 echo read -P 0 32M 32M 106 echo read -P 22 64M 13M 107 echo read -P $discarded 77M 29M 108 echo read -P 22 106M 22M 109} 110 111verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io 112 113_check_test_img 114 115# success, all done 116echo "*** done" 117status=0 118