1#!/bin/sh 2# 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org> 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# Another parallel mount(8) test scenario 30 31# Seen: 32# UID PID PPID C PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND 33# 0 37225 99871 1 32 0 13280 3116 sdstart D+ 0 0:00.04 mount /dev/md21 /mnt21 34# 0 37236 99550 9 68 0 13280 3112 sdstart D+ 0 0:00.04 mount /dev/md19 /mnt19 35 36# https://people.freebsd.org/~pho/stress/log/log0549.txt 37# Fixed by kib@ in 4b273a7fb9e6 38 39. ../default.cfg 40 41mounts=15 42 43../testcases/swap/swap -t 2m -i 20 & 44for i in `jot $mounts $mdstart`; do 45 mdconfig -a -s 50m -u $i 46 newfs -U /dev/md$i > /dev/null 47 mkdir -p $mntpoint$i 48 start=`date +%s` 49 while [ $((`date +%s` - start)) -lt 120 ]; do 50 mount /dev/md$i $mntpoint$i && cp /etc/passwd $mntpoint$i 51 while mount | grep -q " on $mntpoint$i "; do 52 umount $mntpoint$i > /dev/null 2>&1 53 done 54 done & 55 while [ $((`date +%s` - start)) -lt 120 ]; do 56 find $mntpoint$i -ls > /dev/null 2>&1 57 done & 58done 59wait 60 61for i in `jot $mounts $mdstart`; do 62 mdconfig -d -u $i 63 rmdir $mntpoint$i 64done 65exit $s 66