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#!/bin/ksh -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright (c) 2007, Sun Microsystems Inc. All rights reserved.
# Copyright (c) 2013, 2016, Delphix. All rights reserved.
# Copyright (c) 2019, Kjeld Schouten-Lebbing. All rights reserved.
# Use is subject to license terms.
#
. $STF_SUITE/include/properties.shlib
. $STF_SUITE/include/libtest.shlib
#
# DESCRIPTION:
# With 'compression' or 'compress' set, changing filesystem blocksize cannot
# cause system panic
#
# STRATEGY:
# 1. Set 'compression' or "compress" to on
# 2. Set different blocksize with ZFS filesystem
# 3. Use 'mkfile' create single block and multi-block files
# 4. Verify the system continued work
#
verify_runnable "both"
function cleanup
{
rm -f $TESTDIR/*
}
log_assert "Changing blocksize doesn't cause system panic with compression settings"
log_onexit cleanup
fs=$TESTPOOL/$TESTFS
single_blk_file=$TESTDIR/singleblkfile.$$
multi_blk_file=$TESTDIR/multiblkfile.$$
typeset -i blksize=512
typeset -i fsize=0
typeset -i offset=0
for propname in "compression" "compress"
do
for value in "${compress_prop_vals[@]:1}"
do
log_must zfs set $propname=$value $fs
if [[ $value == "gzip-6" ]]; then
value="gzip"
fi
real_val=$(get_prop $propname $fs)
[[ $real_val != $value ]] && \
log_fail "Set property $propname=$value failed."
(( blksize = 512 ))
while (( blksize <= 131072 )); do
log_must zfs set recordsize=$blksize $fs
(( offset = $RANDOM ))
if (( offset > blksize )); then
(( offset = offset % blksize ))
fi
if (( (offset % 2) == 0 )); then
#keep offset as non-power-of-2
(( offset = offset + 1 ))
fi
(( fsize = offset ))
log_must mkfile $fsize $single_blk_file
(( fsize = blksize + offset ))
log_must mkfile $fsize $multi_blk_file
(( blksize = blksize * 2 ))
done
done
done
log_pass "The system works as expected while changing blocksize with compression settings"
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