xref: /openbmc/qemu/tests/qemu-iotests/217 (revision 0e324626)
1#!/usr/bin/env bash
2# group: rw auto quick
3#
4# I/O errors when working with internal qcow2 snapshots, and repairing
5# the result
6#
7# Copyright (C) 2018 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
22seq=$(basename $0)
23echo "QA output created by $seq"
24
25status=1	# failure is the default!
26
27_cleanup()
28{
29    _cleanup_test_img
30    rm -f "$TEST_DIR/blkdebug.conf"
31}
32trap "_cleanup; exit \$status" 0 1 2 3 15
33
34# get standard environment, filters and checks
35. ./common.rc
36. ./common.filter
37
38# This test is specific to qcow2
39_supported_fmt qcow2
40_supported_proto file fuse
41
42# This test needs clusters with at least a refcount of 2 so that
43# OFLAG_COPIED is not set.  refcount_bits=1 is therefore unsupported.
44# (As are external data files.)
45_unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
46
47echo
48echo '=== Simulating an I/O error during snapshot deletion ==='
49echo
50
51_make_test_img 64M
52$QEMU_IO -c 'write 0 64k' "$TEST_IMG" | _filter_qemu_io
53
54# Create the snapshot
55$QEMU_IMG snapshot -c foo "$TEST_IMG"
56
57# Verify the snapshot is there
58echo
59_img_info | grep 'Snapshot list'
60echo '(Snapshot filtered)'
61echo
62
63# Try to delete the snapshot (with an error happening when freeing the
64# then leaked clusters)
65cat > "$TEST_DIR/blkdebug.conf" <<EOF
66[inject-error]
67event = "cluster_free"
68errno = "5"
69EOF
70$QEMU_IMG snapshot -d foo "blkdebug:$TEST_DIR/blkdebug.conf:$TEST_IMG"
71
72# Verify the snapshot is gone
73echo
74_img_info | grep 'Snapshot list'
75
76# Should only show leaks
77echo '--- Checking test image ---'
78_check_test_img
79
80echo
81
82# As there are only leaks, this should be able to fully repair the
83# image
84echo '--- Repairing test image ---'
85_check_test_img -r leaks
86
87
88# success, all done
89echo '*** done'
90rm -f $seq.full
91status=0
92