4 # Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
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
31 # Testing problem with premature disk full problem with symlinks
33 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
38 dede $D 1m 1024 || exit 1
44 sed '1,/^EOF/d' < $odir/$0 > symlink.c
45 cc -o symlink -Wall symlink.c
49 mount | grep "$mntpoint" | grep md${mdstart} > /dev/null && umount $mntpoint
50 mdconfig -l | grep md${mdstart} > /dev/null && mdconfig -d -u ${mdstart}
52 mdconfig -a -t vnode -f $D -u ${mdstart}
58 i=`df -ik $mntpoint | tail -1 | awk '{printf "%d\n", ($7 - 500)/2}'`
59 [ $i -gt 20000 ] && i=20000
68 df -ik $mntpoint | tail -1
69 # sleep 30 # With this enabled, soft update also works
75 echo "newfs $i /dev/md${mdstart}"
76 newfs $i /dev/md${mdstart} > /dev/null 2>&1
77 mount /dev/md${mdstart} ${mntpoint}
83 mdconfig -d -u $mdstart
86 #include <sys/types.h>
87 #include <sys/sysctl.h>
93 #include <sys/param.h>
94 #include <sys/mount.h>
99 main(int argc, char **argv)
106 size = atol(argv[1]);
108 // printf("Creating %jd symlinks...\n", size); fflush(stdout);
110 for (j = 0; j < size; j++) {
111 sprintf(file,"p%05d.%05d", pid, j);
112 if (symlink("/mnt/not/there", file) == -1) {
113 if (errno != EINTR) {
114 warn("symlink(%s)", file);
115 printf("break out at %d, errno %d\n", j, errno);
121 // printf("Deleting %jd files...\n", size); fflush(stdout);
122 for (i = --j; i >= 0; i--) {
123 sprintf(file,"p%05d.%05d", pid, i);
124 if (unlink(file) == -1)
125 err(3, "unlink(%s)", file);