4 # Copyright (c) 2016 EMC Corp.
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
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.
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
29 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
31 # Demonstate nullfs(5) inode leak.
38 mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
39 mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
41 mdconfig -a -t swap -s 2g -u $mdstart || exit 1
42 bsdlabel -w md$mdstart auto
44 newfs -n md${mdstart}$part > /dev/null
46 mount /dev/md${mdstart}$part $mntpoint
48 set `df -ik $mntpoint | tail -1 | awk '{print $4,$7}'`
49 export KBLOCKS=$(($1 / N))
50 export INODES=$(($2 / N))
62 for i in `jot $N 1`; do
63 eval mp$i=${mntpoint}$i
66 for i in `jot $N 1`; do
68 [ -d $mp ] || mkdir -p $mp
69 mount | grep $mp | grep -q nullfs && umount -f $mp
73 mount -t nullfs $msrc $mp
75 export RUNDIR=$mp/stressX
76 export CTRLDIR=$mp/stressX.control
77 mkdir $RUNDIR $CTRLDIR
78 chmod 777 $RUNDIR $CTRLDIR
79 su $testuser -c 'cd ..; ./testcases/run/run $TESTPROGS' > \
84 (cd ../testcases/swap; ./swap -t 10m -i 20 > /dev/null 2>&1) &
86 while pgrep -q run; do
87 find $mps -ls > /dev/null 2>&1
89 while pgrep -q swap; do
94 (cd $mntpoint; find . -delete)
95 sync; sleep 1; sync; sleep 1; sync
96 inodes=`df -i $mntpoint | tail -1 | awk '{print $6}'`
97 if [ $inodes -ne 4 ]; then
100 mount | sed -n "1p;/${mntpoint#/}/p"
102 df -ik | sed -n "1p;/${mntpoint#/}/p"
103 printf "\nfind ${mntpoint}* -ls\n"
104 find ${mntpoint}* -ls
106 for i in `jot $N 1`; do
109 mount | grep $mp | grep -q nullfs && umount $mp
113 df -ik | sed -n "1p;/${mntpoint#/}/p"
115 for i in `jot $N 1`; do
117 mount | grep $mp | grep -q nullfs && umount $mp
119 inodes=`df -i $mntpoint | tail -1 | awk '{print $6}'`
120 if [ $inodes -ne 1 ]; then
123 mount | sed -n "1p;/${mntpoint#/}/p"
125 df -ik | sed -n "1p;/${mntpoint#/}/p"
129 while mount | grep $mntpoint | grep -q /dev/md; do
130 umount $mntpoint || sleep 1
132 mdconfig -d -u $mdstart