1*25a1b1f3SPeter Holm#!/bin/sh 2*25a1b1f3SPeter Holm 3*25a1b1f3SPeter Holm# 4*25a1b1f3SPeter Holm# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5*25a1b1f3SPeter Holm# 6*25a1b1f3SPeter Holm# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org> 7*25a1b1f3SPeter Holm# 8*25a1b1f3SPeter Holm# Redistribution and use in source and binary forms, with or without 9*25a1b1f3SPeter Holm# modification, are permitted provided that the following conditions 10*25a1b1f3SPeter Holm# are met: 11*25a1b1f3SPeter Holm# 1. Redistributions of source code must retain the above copyright 12*25a1b1f3SPeter Holm# notice, this list of conditions and the following disclaimer. 13*25a1b1f3SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 14*25a1b1f3SPeter Holm# notice, this list of conditions and the following disclaimer in the 15*25a1b1f3SPeter Holm# documentation and/or other materials provided with the distribution. 16*25a1b1f3SPeter Holm# 17*25a1b1f3SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18*25a1b1f3SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*25a1b1f3SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*25a1b1f3SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21*25a1b1f3SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*25a1b1f3SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*25a1b1f3SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*25a1b1f3SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*25a1b1f3SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*25a1b1f3SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*25a1b1f3SPeter Holm# SUCH DAMAGE. 28*25a1b1f3SPeter Holm# 29*25a1b1f3SPeter Holm 30*25a1b1f3SPeter Holm# Simple test to demonstrate EMLINK issue on a SU file system. 31*25a1b1f3SPeter Holm 32*25a1b1f3SPeter Holm# mkdir: /mnt10/a994: Too many links 33*25a1b1f3SPeter Holm 34*25a1b1f3SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35*25a1b1f3SPeter Holm. ../default.cfg 36*25a1b1f3SPeter Holm 37*25a1b1f3SPeter Holmecho "$newfs_flags" | grep -q U || exit 0 38*25a1b1f3SPeter Holmlog=/tmp/nlink2.sh.log 39*25a1b1f3SPeter Holmmd=$mdstart 40*25a1b1f3SPeter Holmmp=/mnt$md 41*25a1b1f3SPeter Holmmkdir -p $mp 42*25a1b1f3SPeter Holmset -e 43*25a1b1f3SPeter Holmmount | grep -q "on $mp " && umount -f $mp 44*25a1b1f3SPeter Holmmdconfig -l | grep -q md$md && mdconfig -d -u $md 45*25a1b1f3SPeter Holm 46*25a1b1f3SPeter Holmmdconfig -a -t swap -s 1g -u $md 47*25a1b1f3SPeter Holmnewfs $newfs_flags -n md$md > /dev/null 48*25a1b1f3SPeter Holmmount /dev/md$md $mp 49*25a1b1f3SPeter Holmset +e 50*25a1b1f3SPeter Holm 51*25a1b1f3SPeter Holmstart=`date +%s` 52*25a1b1f3SPeter Holmfor i in `jot 1000`; do 53*25a1b1f3SPeter Holm jot 1000 | xargs -P0 -I% mkdir $mp/a% || { s=1; break; } 54*25a1b1f3SPeter Holm jot 1000 | xargs -P0 -I% rmdir $mp/a% 55*25a1b1f3SPeter Holm t=$((`date +%s` - start)) 56*25a1b1f3SPeter Holm if [ $t -ge 300 ]; then 57*25a1b1f3SPeter Holm echo "Warn: Timed out in loop #$i after $t seconds" 58*25a1b1f3SPeter Holm break 59*25a1b1f3SPeter Holm fi 60*25a1b1f3SPeter Holmdone 61*25a1b1f3SPeter Holmif [ $s ]; then 62*25a1b1f3SPeter Holm echo "Failed in loop #$i" 63*25a1b1f3SPeter Holm df -i $mp 64*25a1b1f3SPeter Holmfi 65*25a1b1f3SPeter Holm 66*25a1b1f3SPeter Holmumount $mp 67*25a1b1f3SPeter Holmfsck_ffs -fy /dev/md$md > $log 2>&1 68*25a1b1f3SPeter Holmgrep -Eq "WAS MODIFIED" $log && { s=$((s + 2)); cat $log; } 69*25a1b1f3SPeter Holmmdconfig -d -u $md 70*25a1b1f3SPeter Holmrm -f $log 71*25a1b1f3SPeter Holmexit $s 72