1#!/usr/bin/env bash 2# group: rw auto quick 3# 4# Check that errors while closing the image, in particular writing back dirty 5# bitmaps, is correctly reported with a failing qemu-img exit code. 6# 7# Copyright (C) 2023 Red Hat, Inc. 8# 9# This program is free software; you can redistribute it and/or modify 10# it under the terms of the GNU General Public License as published by 11# the Free Software Foundation; either version 2 of the License, or 12# (at your option) any later version. 13# 14# This program is distributed in the hope that it will be useful, 15# but WITHOUT ANY WARRANTY; without even the implied warranty of 16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17# GNU General Public License for more details. 18# 19# You should have received a copy of the GNU General Public License 20# along with this program. If not, see <http://www.gnu.org/licenses/>. 21# 22 23# creator 24owner=kwolf@redhat.com 25 26seq="$(basename $0)" 27echo "QA output created by $seq" 28 29status=1 # failure is the default! 30 31_cleanup() 32{ 33 _cleanup_test_img 34} 35trap "_cleanup; exit \$status" 0 1 2 3 15 36 37# get standard environment, filters and checks 38cd .. 39. ./common.rc 40. ./common.filter 41 42_supported_fmt qcow2 43_supported_proto file 44_supported_os Linux 45 46size=1G 47 48# The error we are going to use is ENOSPC. Depending on how many bitmaps we 49# create in the backing file (and therefore increase the used up space), we get 50# failures in different places. With a low number, only merging the bitmap 51# fails, whereas with a higher number, already 'qemu-img commit' fails. 52for max_bitmap in 6 7; do 53 echo 54 echo "=== Test with $max_bitmap bitmaps ===" 55 56 TEST_IMG="$TEST_IMG.base" _make_test_img -q $size 57 for i in $(seq 1 $max_bitmap); do 58 $QEMU_IMG bitmap --add "$TEST_IMG.base" "stale-bitmap-$i" 59 done 60 61 # Simulate a block device of 128 MB by resizing the image file accordingly 62 # and then enforcing the size with the raw driver 63 $QEMU_IO -f raw -c "truncate 128M" "$TEST_IMG.base" 64 BASE_JSON='json:{ 65 "driver": "qcow2", 66 "file": { 67 "driver": "raw", 68 "size": 134217728, 69 "file": { 70 "driver": "file", 71 "filename":"'"$TEST_IMG.base"'" 72 } 73 } 74 }' 75 76 _make_test_img -q -b "$BASE_JSON" -F $IMGFMT 77 $QEMU_IMG bitmap --add "$TEST_IMG" "good-bitmap" 78 79 $QEMU_IO -c 'write 0 126m' "$TEST_IMG" | _filter_qemu_io 80 81 $QEMU_IMG commit -d "$TEST_IMG" 2>&1 | _filter_generated_node_ids 82 echo "qemu-img commit exit code: ${PIPESTATUS[0]}" 83 84 $QEMU_IMG bitmap --add "$BASE_JSON" "good-bitmap" 85 echo "qemu-img bitmap --add exit code: $?" 86 87 $QEMU_IMG bitmap --merge "good-bitmap" -b "$TEST_IMG" "$BASE_JSON" \ 88 "good-bitmap" 2>&1 | _filter_generated_node_ids 89 echo "qemu-img bitmap --merge exit code: ${PIPESTATUS[0]}" 90done 91 92# success, all done 93echo "*** done" 94rm -f $seq.full 95status=0 96 97