186d7f5d3SJohn Marino#!/bin/sh 286d7f5d3SJohn Marino 386d7f5d3SJohn Marino# 486d7f5d3SJohn Marino# Copyright (c) 2009 Peter Holm <pho@FreeBSD.org> 586d7f5d3SJohn Marino# All rights reserved. 686d7f5d3SJohn Marino# 786d7f5d3SJohn Marino# Redistribution and use in source and binary forms, with or without 886d7f5d3SJohn Marino# modification, are permitted provided that the following conditions 986d7f5d3SJohn Marino# are met: 1086d7f5d3SJohn Marino# 1. Redistributions of source code must retain the above copyright 1186d7f5d3SJohn Marino# notice, this list of conditions and the following disclaimer. 1286d7f5d3SJohn Marino# 2. Redistributions in binary form must reproduce the above copyright 1386d7f5d3SJohn Marino# notice, this list of conditions and the following disclaimer in the 1486d7f5d3SJohn Marino# documentation and/or other materials provided with the distribution. 1586d7f5d3SJohn Marino# 1686d7f5d3SJohn Marino# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1786d7f5d3SJohn Marino# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1886d7f5d3SJohn Marino# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1986d7f5d3SJohn Marino# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2086d7f5d3SJohn Marino# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2186d7f5d3SJohn Marino# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2286d7f5d3SJohn Marino# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2386d7f5d3SJohn Marino# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2486d7f5d3SJohn Marino# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2586d7f5d3SJohn Marino# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2686d7f5d3SJohn Marino# SUCH DAMAGE. 2786d7f5d3SJohn Marino# 2886d7f5d3SJohn Marino# $FreeBSD$ 2986d7f5d3SJohn Marino# 3086d7f5d3SJohn Marino 3186d7f5d3SJohn Marino# Deadlock seen when deleting the snapshots during an "ls" of the FS 3286d7f5d3SJohn Marino 3386d7f5d3SJohn Marino# Based on test scenario by John Kozubik <john at kozubik dot com> 3486d7f5d3SJohn Marino# kern/94769: [ufs] Multiple file deletions on multi-snapshotted filesystems 3586d7f5d3SJohn Marino# causes hang 3686d7f5d3SJohn Marino 3786d7f5d3SJohn Marino[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 3886d7f5d3SJohn Marino 3986d7f5d3SJohn Marino. ../default.cfg 4086d7f5d3SJohn Marino 4186d7f5d3SJohn Marinomount | grep -q /dev/md${mdstart}$part && umount -f /dev/md${mdstart}$part 4286d7f5d3SJohn Marinomdconfig -l | grep -q md${mdstart} && mdconfig -d -u $mdstart 4386d7f5d3SJohn Marino 4486d7f5d3SJohn Marino 4586d7f5d3SJohn Marinoparallel=20 4686d7f5d3SJohn Marinosize=25 # Gb 4786d7f5d3SJohn Marino[ `df -k $(dirname $diskimage) | tail -1 | awk '{print $4'}` -lt $((size * 1024 * 1024)) ] && \ 4886d7f5d3SJohn Marino echo "Not enough disk space." && exit 1 4986d7f5d3SJohn Marinotruncate -s ${size}G $diskimage 5086d7f5d3SJohn Marino 5186d7f5d3SJohn Marinomdconfig -a -t vnode -f $diskimage -u $mdstart 5286d7f5d3SJohn Marinobsdlabel -w md$mdstart auto 5386d7f5d3SJohn Marinonewfs -O2 -U md${mdstart}${part} > /dev/null 5486d7f5d3SJohn Marinomount /dev/md${mdstart}${part} $mntpoint 5586d7f5d3SJohn Marino 5686d7f5d3SJohn Marino 5786d7f5d3SJohn Marinocc -o /tmp/fstool -Wall ../tools/fstool.c 5886d7f5d3SJohn Marinofor i in `jot $parallel`; do 5986d7f5d3SJohn Marino (mkdir $mntpoint/test$i; cd $mntpoint/test$i; /tmp/fstool -l -f 50 -n 500 -s 8k) & 6086d7f5d3SJohn Marinodone 6186d7f5d3SJohn Marinofor i in `jot $parallel`; do 6286d7f5d3SJohn Marino wait 6386d7f5d3SJohn Marinodone 6486d7f5d3SJohn Marinorm -f /tmp/fstool 6586d7f5d3SJohn Marino 6686d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap1 6786d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap2 6886d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap3 6986d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap4 7086d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap5 7186d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap6 7286d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap7 7386d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap8 7486d7f5d3SJohn Marinomksnap_ffs $mntpoint $mntpoint/.snap/snap9 7586d7f5d3SJohn Marino 7686d7f5d3SJohn Marinofor i in `jot $parallel`; do 7786d7f5d3SJohn Marino rm -rf $mntpoint/test$i & 7886d7f5d3SJohn Marinodone 7986d7f5d3SJohn Marinofor i in `jot $parallel`; do 8086d7f5d3SJohn Marino wait 8186d7f5d3SJohn Marinodone 8286d7f5d3SJohn Marino 8386d7f5d3SJohn Marinorm -rf $mntpoint/.snap/snap? & 8486d7f5d3SJohn Marino 8586d7f5d3SJohn Marinofor i in `jot 10`; do 8686d7f5d3SJohn Marino ls -lsrt $mntpoint > /dev/null 2>&1 8786d7f5d3SJohn Marino sleep 2 8886d7f5d3SJohn Marinodone 8986d7f5d3SJohn Marinowait 9086d7f5d3SJohn Marino 9186d7f5d3SJohn Marinoumount /dev/md${mdstart}$part 9286d7f5d3SJohn Marino 9386d7f5d3SJohn Marinomount | grep -q /dev/md${mdstart}$part && umount -f /dev/md${mdstart}$part 9486d7f5d3SJohn Marinomdconfig -l | grep -q md${mdstart} && mdconfig -d -u $mdstart 9586d7f5d3SJohn Marinorm -f $diskimage 96