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4d846d260e
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
81 lines
2.8 KiB
Bash
Executable file
81 lines
2.8 KiB
Bash
Executable file
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Scenario: mount -t nullfs /mnt /mnt
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# Seen:
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# [root@mercat1 /home/pho]# ps -lUroot | grep -v grep | grep -E "find|umount"
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# 0 23496 3144 0 52 0 12856 2544 ufs D+ 0 0:00.00 find /mnt -type f -maxdepth 2 -ls
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# 0 23497 3126 6 52 0 12812 2512 mount dr D+ 0 0:00.00 umount /mnt
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# [root@mercat1 /home/pho]#
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# Test suggestion by Jason Harmening:
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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nullfs_srcdir=$mntpoint
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nullfs_dstdir=$mntpoint
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runtime=300
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set -e
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mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -u $mdstart || exit 1
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newfs $newfs_flags md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint
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chmod 777 $mntpoint
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set +e
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start=`date '+%s'`
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while [ `date '+%s'` -lt $((start + $runtime)) ]; do
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find $nullfs_dstdir -type f -maxdepth 2 -ls > \
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/dev/null 2>&1
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done &
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(cd ../testcases/swap; ./swap -t ${runtime}s -i 20) &
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start=`date '+%s'`
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while [ `date '+%s'` -lt $((start + $runtime)) ]; do
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mount_nullfs $nullfs_srcdir $nullfs_dstdir
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opt=$([ `jot -r 1 0 1` -eq 0 ] && echo "-f")
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while mount | grep nullfs | grep -q ${nullfs_dstdir}; do
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umount $opt $nullfs_dstdir
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done
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done > /dev/null 2>&1
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pkill swap
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wait
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n=0
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while mount | grep $mntpoint | grep -q /dev/md; do
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umount $mntpoint || sleep 1
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n=$((n + 1))
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[ $n -gt 30 ] && { echo FAIL; status=2; }
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done
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mdconfig -d -u $mdstart
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exit 0
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