1#!/usr/bin/env bash
2#
3# Make sure qemu-img can create 5TB images
4#
5# Based on a testcase from Chris Wright,
6# https://bugzilla.redhat.com/show_bug.cgi?id=491943
7#
8# Copyright (C) 2009 Red Hat, Inc.
9#
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 2 of the License, or
13# (at your option) any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program.  If not, see <http://www.gnu.org/licenses/>.
22#
23
24# creator
25owner=hch@lst.de
26
27seq=`basename $0`
28echo "QA output created by $seq"
29
30status=1	# failure is the default!
31
32_cleanup()
33{
34	_cleanup_test_img
35}
36trap "_cleanup; exit \$status" 0 1 2 3 15
37
38# get standard environment, filters and checks
39. ./common.rc
40. ./common.filter
41
42_supported_fmt generic
43_supported_proto generic
44_supported_os Linux
45_unsupported_imgopts "subformat=twoGbMaxExtentFlat" \
46                     "subformat=twoGbMaxExtentSparse" \
47                     "subformat=streamOptimized"
48
49# vpc is limited to 127GB, so we can't test it here
50if [ "$IMGFMT" = "vpc" ]; then
51    _notrun "image format $IMGFMT does not support large image sizes"
52fi
53
54# sheepdog image is limited to 4TB, so we can't test it here
55if [ "$IMGPROTO" = "sheepdog" ]; then
56    _notrun "image protocol $IMGPROTO does not support large image sizes"
57fi
58
59# Sanity check: For raw, we require a file system that permits the creation
60# of a HUGE (but very sparse) file. Check we can create it before continuing.
61if [ "$IMGFMT" = "raw" ]; then
62    if ! truncate --size=5T "$TEST_IMG"; then
63        _notrun "file system on $TEST_DIR does not support large enough files"
64    fi
65    rm "$TEST_IMG"
66fi
67
68echo
69echo "creating large image"
70_make_test_img 5000G
71
72echo
73echo "small read"
74$QEMU_IO -c "read 1024 4096" "$TEST_IMG" | _filter_qemu_io
75
76echo
77echo "small write"
78$QEMU_IO -c "write 8192 4096" "$TEST_IMG" | _filter_qemu_io
79
80# success, all done
81echo "*** done"
82rm -f $seq.full
83status=0
84