125a1b1f3SPeter Holm#!/bin/sh 225a1b1f3SPeter Holm 325a1b1f3SPeter Holm# 4*4d846d26SWarner Losh# SPDX-License-Identifier: BSD-2-Clause 525a1b1f3SPeter Holm# 625a1b1f3SPeter Holm# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org> 725a1b1f3SPeter Holm# 825a1b1f3SPeter Holm# Redistribution and use in source and binary forms, with or without 925a1b1f3SPeter Holm# modification, are permitted provided that the following conditions 1025a1b1f3SPeter Holm# are met: 1125a1b1f3SPeter Holm# 1. Redistributions of source code must retain the above copyright 1225a1b1f3SPeter Holm# notice, this list of conditions and the following disclaimer. 1325a1b1f3SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 1425a1b1f3SPeter Holm# notice, this list of conditions and the following disclaimer in the 1525a1b1f3SPeter Holm# documentation and/or other materials provided with the distribution. 1625a1b1f3SPeter Holm# 1725a1b1f3SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1825a1b1f3SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1925a1b1f3SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2025a1b1f3SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2125a1b1f3SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2225a1b1f3SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2325a1b1f3SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2425a1b1f3SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2525a1b1f3SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2625a1b1f3SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2725a1b1f3SPeter Holm# SUCH DAMAGE. 2825a1b1f3SPeter Holm# 2925a1b1f3SPeter Holm 3025a1b1f3SPeter Holm# Simple test to demonstrate EMLINK issue on a SU file system. 3125a1b1f3SPeter Holm 3225a1b1f3SPeter Holm# mkdir: /mnt10/a994: Too many links 3325a1b1f3SPeter Holm 3425a1b1f3SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 3525a1b1f3SPeter Holm. ../default.cfg 3625a1b1f3SPeter Holm 3725a1b1f3SPeter Holmecho "$newfs_flags" | grep -q U || exit 0 3825a1b1f3SPeter Holmlog=/tmp/nlink2.sh.log 3925a1b1f3SPeter Holmmd=$mdstart 4025a1b1f3SPeter Holmmp=/mnt$md 4125a1b1f3SPeter Holmmkdir -p $mp 4225a1b1f3SPeter Holmset -e 4325a1b1f3SPeter Holmmount | grep -q "on $mp " && umount -f $mp 4425a1b1f3SPeter Holmmdconfig -l | grep -q md$md && mdconfig -d -u $md 4525a1b1f3SPeter Holm 4625a1b1f3SPeter Holmmdconfig -a -t swap -s 1g -u $md 4725a1b1f3SPeter Holmnewfs $newfs_flags -n md$md > /dev/null 4825a1b1f3SPeter Holmmount /dev/md$md $mp 4925a1b1f3SPeter Holmset +e 5025a1b1f3SPeter Holm 5125a1b1f3SPeter Holmstart=`date +%s` 5225a1b1f3SPeter Holmfor i in `jot 1000`; do 5325a1b1f3SPeter Holm jot 1000 | xargs -P0 -I% mkdir $mp/a% || { s=1; break; } 5425a1b1f3SPeter Holm jot 1000 | xargs -P0 -I% rmdir $mp/a% 5525a1b1f3SPeter Holm t=$((`date +%s` - start)) 5625a1b1f3SPeter Holm if [ $t -ge 300 ]; then 5725a1b1f3SPeter Holm echo "Warn: Timed out in loop #$i after $t seconds" 5825a1b1f3SPeter Holm break 5925a1b1f3SPeter Holm fi 6025a1b1f3SPeter Holmdone 6125a1b1f3SPeter Holmif [ $s ]; then 6225a1b1f3SPeter Holm echo "Failed in loop #$i" 6325a1b1f3SPeter Holm df -i $mp 6425a1b1f3SPeter Holmfi 6525a1b1f3SPeter Holm 6625a1b1f3SPeter Holmumount $mp 6725a1b1f3SPeter Holmfsck_ffs -fy /dev/md$md > $log 2>&1 6825a1b1f3SPeter Holmgrep -Eq "WAS MODIFIED" $log && { s=$((s + 2)); cat $log; } 6925a1b1f3SPeter Holmmdconfig -d -u $md 7025a1b1f3SPeter Holmrm -f $log 7125a1b1f3SPeter Holmexit $s 72