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95 lines
3.2 KiB
Bash
Executable file
95 lines
3.2 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2009 Peter Holm <pho@FreeBSD.org>
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# All rights reserved.
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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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# Deadlock seen when deleting the snapshots during an "ls" of the FS
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# Based on test scenario by John Kozubik <john at kozubik dot com>
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# kern/94769: [ufs] Multiple file deletions on multi-snapshotted filesystems
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# causes hang
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# panic: handle_workitem_remove: bad dir delta
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# https://people.freebsd.org/~pho/stress/log/log0121.txt
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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mount | grep -q /dev/md${mdstart}$part && umount -f /dev/md${mdstart}$part
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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parallel=20
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size=25 # Gb
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mx=$((`sysctl -n hw.physmem` / 1024 / 1024 / 1024 / 2))
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[ $size -gt $mx ] && size=$mx
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[ `df -k $(dirname $diskimage) | tail -1 | awk '{print $4}'` -lt \
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$((size * 1024 * 1024)) ] && \
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echo "Not enough disk space." && exit 1
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truncate -s ${size}G $diskimage
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mdconfig -a -t vnode -f $diskimage -u $mdstart
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bsdlabel -w md$mdstart auto
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newfs -O2 $newfs_flags md${mdstart}$part > /dev/null
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mount /dev/md${mdstart}$part $mntpoint
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mycc -o /tmp/fstool -Wall ../tools/fstool.c
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for i in `jot $parallel`; do
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(mkdir $mntpoint/test$i; cd $mntpoint/test$i; \
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timeout 10m /tmp/fstool -l -f 50 -n 500 -s 8k) &
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done
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wait
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rm -f /tmp/fstool
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mksnap_ffs $mntpoint $mntpoint/.snap/snap1
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mksnap_ffs $mntpoint $mntpoint/.snap/snap2
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mksnap_ffs $mntpoint $mntpoint/.snap/snap3
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mksnap_ffs $mntpoint $mntpoint/.snap/snap4
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mksnap_ffs $mntpoint $mntpoint/.snap/snap5
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mksnap_ffs $mntpoint $mntpoint/.snap/snap6
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mksnap_ffs $mntpoint $mntpoint/.snap/snap7
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mksnap_ffs $mntpoint $mntpoint/.snap/snap8
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mksnap_ffs $mntpoint $mntpoint/.snap/snap9
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for i in `jot $parallel`; do
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rm -rf $mntpoint/test$i &
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done
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wait
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rm -rf $mntpoint/.snap/snap? &
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for i in `jot 10`; do
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ls -lsrt $mntpoint > /dev/null 2>&1
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sleep 2
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done
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wait
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umount /dev/md${mdstart}$part
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mount | grep -q /dev/md${mdstart}$part && umount -f /dev/md${mdstart}$part
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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rm -f $diskimage
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