[qemu.git] / tests / qemu-iotests / 039

#!/bin/bash
#
# Test qcow2 lazy refcounts
#
# Copyright (C) 2012 Red Hat, Inc.
# Copyright IBM, Corp. 2010
#
# Based on test 038.
#
# 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=stefanha@linux.vnet.ibm.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!

_cleanup()
{
	_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15

# get standard environment, filters and checks
. ./common.rc
. ./common.filter

_supported_fmt qcow2
_supported_proto generic
_supported_os Linux
_unsupported_qemu_io_options --nocache

size=128M

echo
echo "== Checking that image is clean on shutdown =="

IMGOPTS="compat=1.1,lazy_refcounts=on"
_make_test_img $size

$QEMU_IO -c "write -P 0x5a 0 512" $TEST_IMG | _filter_qemu_io

# The dirty bit must not be set
./qcow2.py $TEST_IMG dump-header | grep incompatible_features
_check_test_img

echo
echo "== Creating a dirty image file =="

IMGOPTS="compat=1.1,lazy_refcounts=on"
_make_test_img $size

old_ulimit=$(ulimit -c)
ulimit -c 0 # do not produce a core dump on abort(3)
$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" $TEST_IMG | _filter_qemu_io
ulimit -c "$old_ulimit"

# The dirty bit must be set
./qcow2.py $TEST_IMG dump-header | grep incompatible_features
_check_test_img

echo
echo "== Read-only access must still work =="

$QEMU_IO -r -c "read -P 0x5a 0 512" $TEST_IMG | _filter_qemu_io

# The dirty bit must be set
./qcow2.py $TEST_IMG dump-header | grep incompatible_features

echo
echo "== Repairing the image file must succeed =="

_check_test_img -r all

# The dirty bit must not be set
./qcow2.py $TEST_IMG dump-header | grep incompatible_features

echo
echo "== Data should still be accessible after repair =="

$QEMU_IO -c "read -P 0x5a 0 512" $TEST_IMG | _filter_qemu_io

echo
echo "== Opening a dirty image read/write should repair it =="

IMGOPTS="compat=1.1,lazy_refcounts=on"
_make_test_img $size

old_ulimit=$(ulimit -c)
ulimit -c 0 # do not produce a core dump on abort(3)
$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" $TEST_IMG | _filter_qemu_io
ulimit -c "$old_ulimit"

# The dirty bit must be set
./qcow2.py $TEST_IMG dump-header | grep incompatible_features

$QEMU_IO -c "write 0 512" $TEST_IMG | _filter_qemu_io

# The dirty bit must not be set
./qcow2.py $TEST_IMG dump-header | grep incompatible_features

echo
echo "== Creating an image file with lazy_refcounts=off =="

IMGOPTS="compat=1.1,lazy_refcounts=off"
_make_test_img $size

old_ulimit=$(ulimit -c)
ulimit -c 0 # do not produce a core dump on abort(3)
$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" $TEST_IMG | _filter_qemu_io
ulimit -c "$old_ulimit"

# The dirty bit must not be set since lazy_refcounts=off
./qcow2.py $TEST_IMG dump-header | grep incompatible_features
_check_test_img

# success, all done
echo "*** done"
rm -f $seq.full
status=0
Commit	Line	Data
dc68afe0 SH	1	#!/bin/bash
	2	#
	3	# Test qcow2 lazy refcounts
	4	#
	5	# Copyright (C) 2012 Red Hat, Inc.
	6	# Copyright IBM, Corp. 2010
	7	#
	8	# Based on test 038.
	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
	25	owner=stefanha@linux.vnet.ibm.com
	26
	27	seq=`basename $0`
	28	echo "QA output created by $seq"
	29
	30	here=`pwd`
	31	tmp=/tmp/$$
	32	status=1 # failure is the default!
	33
	34	_cleanup()
	35	{
	36	_cleanup_test_img
	37	}
	38	trap "_cleanup; exit \$status" 0 1 2 3 15
	39
	40	# get standard environment, filters and checks
	41	. ./common.rc
	42	. ./common.filter
	43
	44	_supported_fmt qcow2
	45	_supported_proto generic
	46	_supported_os Linux
166f3c7b	47	_unsupported_qemu_io_options --nocache
dc68afe0 SH	48
	49	size=128M
	50
	51	echo
	52	echo "== Checking that image is clean on shutdown =="
	53
	54	IMGOPTS="compat=1.1,lazy_refcounts=on"
	55	_make_test_img $size
	56
	57	$QEMU_IO -c "write -P 0x5a 0 512" $TEST_IMG \| _filter_qemu_io
	58
	59	# The dirty bit must not be set
	60	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	61	_check_test_img
	62
	63	echo
	64	echo "== Creating a dirty image file =="
	65
	66	IMGOPTS="compat=1.1,lazy_refcounts=on"
	67	_make_test_img $size
	68
	69	old_ulimit=$(ulimit -c)
	70	ulimit -c 0 # do not produce a core dump on abort(3)
	71	$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" $TEST_IMG \| _filter_qemu_io
	72	ulimit -c "$old_ulimit"
	73
	74	# The dirty bit must be set
	75	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	76	_check_test_img
	77
	78	echo
	79	echo "== Read-only access must still work =="
	80
	81	$QEMU_IO -r -c "read -P 0x5a 0 512" $TEST_IMG \| _filter_qemu_io
	82
	83	# The dirty bit must be set
	84	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	85
	86	echo
	87	echo "== Repairing the image file must succeed =="
	88
c6bb9ad1	89	_check_test_img -r all
dc68afe0 SH	90
	91	# The dirty bit must not be set
	92	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	93
	94	echo
	95	echo "== Data should still be accessible after repair =="
	96
	97	$QEMU_IO -c "read -P 0x5a 0 512" $TEST_IMG \| _filter_qemu_io
	98
	99	echo
	100	echo "== Opening a dirty image read/write should repair it =="
	101
	102	IMGOPTS="compat=1.1,lazy_refcounts=on"
	103	_make_test_img $size
	104
	105	old_ulimit=$(ulimit -c)
	106	ulimit -c 0 # do not produce a core dump on abort(3)
	107	$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" $TEST_IMG \| _filter_qemu_io
	108	ulimit -c "$old_ulimit"
	109
	110	# The dirty bit must be set
	111	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	112
	113	$QEMU_IO -c "write 0 512" $TEST_IMG \| _filter_qemu_io
	114
	115	# The dirty bit must not be set
	116	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	117
	118	echo
	119	echo "== Creating an image file with lazy_refcounts=off =="
	120
	121	IMGOPTS="compat=1.1,lazy_refcounts=off"
	122	_make_test_img $size
	123
	124	old_ulimit=$(ulimit -c)
	125	ulimit -c 0 # do not produce a core dump on abort(3)
	126	$QEMU_IO -c "write -P 0x5a 0 512" -c "abort" $TEST_IMG \| _filter_qemu_io
	127	ulimit -c "$old_ulimit"
	128
	129	# The dirty bit must not be set since lazy_refcounts=off
	130	./qcow2.py $TEST_IMG dump-header \| grep incompatible_features
	131	_check_test_img
	132
	133	# success, all done
	134	echo "*** done"
	135	rm -f $seq.full
	136	status=0
	137