qemu/tests/qemu-iotests/204
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   1#!/usr/bin/env bash
   2# group: rw 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 $seq"
  27
  28status=1        # failure is the default!
  29
  30_cleanup()
  31{
  32        _cleanup_test_img
  33}
  34trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36# get standard environment, filters and checks
  37. ./common.rc
  38. ./common.filter
  39
  40_supported_fmt qcow2
  41_supported_proto file fuse
  42# This test assumes that discard leaves zero clusters; see test 177 for
  43# other tests that also work in older images
  44_unsupported_imgopts 'compat=0.10'
  45
  46CLUSTER_SIZE=1M
  47size=128M
  48options=driver=blkdebug,image.driver=qcow2
  49nested_opts=image.file.driver=file,image.file.filename=$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" -F $IMGFMT
  57$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
  97verify_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