1#!/bin/sh 2 3# 4# Copyright (c) 2016 EMC Corp. 5# All rights reserved. 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# Variation of nullfs.sh 30 31# "panic: LK_RETRY set with incompatible flags (0x202400) or 32# an error occurred (11)" seen. 33# https://people.freebsd.org/~pho/stress/log/matt001.txt 34 35[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 36 37. ../default.cfg 38 39mounts=15 # Number of parallel scripts 40: ${nullfs_srcdir:=/tmp} 41: ${nullfs_dstdir:=$mntpoint} 42CONT=/tmp/nullfs17.continue 43 44if [ $# -eq 0 ]; then 45 for i in `jot $mounts`; do 46 [ ! -d ${nullfs_dstdir}$i ] && mkdir ${nullfs_dstdir}$i 47 mount | grep -q " ${nullfs_dstdir}$i " && 48 umount ${nullfs_dstdir}$i 49 done 50 51 # start the parallel tests 52 for i in `jot $mounts`; do 53 ./$0 $i & 54 ./$0 find $i & 55 done 56 wait 57 58 for i in `jot $mounts`; do 59 umount ${nullfs_dstdir}$i > /dev/null 2>&1 60 done 61 exit 0 62else 63 if [ $1 = find ]; then 64 while [ -f $CONT ]; do 65 find ${nullfs_dstdir}$2 -type f -maxdepth 2 -ls > \ 66 /dev/null 2>&1 67 done 68 else 69 # The test: Parallel mount and unmounts 70 touch $CONT 71 start=`date '+%s'` 72 while [ `date '+%s'` -lt $((start + 300)) ]; do 73 m=$1 74 mount_nullfs $nullfs_srcdir ${nullfs_dstdir}$m > \ 75 /dev/null 2>&1 76 opt=`[ $(( m % 2 )) -eq 0 ] && echo -f` 77 while mount | grep -q ${nullfs_dstdir}$m; do 78 umount $opt ${nullfs_dstdir}$m > \ 79 /dev/null 2>&1 80 done 81 done 82 rm -f $CONT 83 fi 84fi 85