forked from mirror/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
2.6 KiB
Bash
87 lines
2.6 KiB
Bash
#!/usr/bin/env bash
|
|
# group: rw snapshot
|
|
#
|
|
# Combined test to grow the refcount table and test snapshots.
|
|
#
|
|
# Copyright (C) 2009 Red Hat, Inc.
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
# creator
|
|
owner=kwolf@redhat.com
|
|
|
|
seq=`basename $0`
|
|
echo "QA output created by $seq"
|
|
|
|
status=1 # failure is the default!
|
|
|
|
_cleanup()
|
|
{
|
|
_cleanup_test_img
|
|
true
|
|
}
|
|
trap "_cleanup; exit \$status" 0 1 2 3 15
|
|
|
|
# get standard environment, filters and checks
|
|
. ./common.rc
|
|
. ./common.filter
|
|
|
|
# actually any format that supports snapshots
|
|
_supported_fmt qcow2
|
|
_supported_proto generic
|
|
# Internal snapshots are (currently) impossible with refcount_bits=1,
|
|
# and generally impossible with external data files
|
|
_unsupported_imgopts 'refcount_bits=1[^0-9]' data_file
|
|
|
|
echo
|
|
echo "creating image"
|
|
|
|
# With 1k clusters a refcount block contains 512 clusters
|
|
# This makes 512k of the image file covered by a refcount block
|
|
# A refcount table that spans one clusters has 128 refcount
|
|
# tables which makes up 64M in the image file.
|
|
#
|
|
# We use a 36M image, so initially we can be sure that only one cluster is used
|
|
# for the refcount table. On the other hand this is big enough to cause a
|
|
# refcount table growth when rewriting the image after creating one snapshot.
|
|
size=36M
|
|
CLUSTER_SIZE=1k
|
|
_make_test_img $size
|
|
|
|
# Create two snapshots which fill the image with two different patterns
|
|
echo "creating first snapshot"
|
|
$QEMU_IO -c "aio_write -P 123 0 $size" "$TEST_IMG" | _filter_qemu_io
|
|
$QEMU_IMG snapshot -c snap1 "$TEST_IMG"
|
|
echo "creating second snapshot"
|
|
$QEMU_IO -c "aio_write -P 165 0 $size" "$TEST_IMG" | _filter_qemu_io
|
|
$QEMU_IMG snapshot -c snap2 "$TEST_IMG"
|
|
|
|
# Now check the pattern
|
|
echo "checking first snapshot"
|
|
$QEMU_IMG snapshot -a snap1 "$TEST_IMG"
|
|
$QEMU_IO -c "aio_read -P 123 0 $size" "$TEST_IMG" | _filter_qemu_io
|
|
echo "checking second snapshot"
|
|
$QEMU_IMG snapshot -a snap2 "$TEST_IMG"
|
|
$QEMU_IO -c "aio_read -P 165 0 $size" "$TEST_IMG" | _filter_qemu_io
|
|
|
|
echo
|
|
echo "checking image for errors"
|
|
_check_test_img
|
|
|
|
# success, all done
|
|
echo "*** done"
|
|
rm -f $seq.full
|
|
status=0
|