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author | Peter Holm <pho@FreeBSD.org> | 2021-03-03 12:56:56 +0000 |
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committer | Peter Holm <pho@FreeBSD.org> | 2021-03-03 14:11:40 +0000 |
commit | 8a272653d9fbd9fc37691c9aad6a05089b4ecb4d (patch) | |
tree | 2463ed22a342700cb7ba2b05c3d5370f75090899 /tools/test/stress2/misc/symlink4.sh | |
parent | 3adf72a36b9b151eef57e3d83f71a3a9fbacb78d (diff) | |
download | src-8a272653d9fbd9fc37691c9aad6a05089b4ecb4d.tar.gz src-8a272653d9fbd9fc37691c9aad6a05089b4ecb4d.zip |
Diffstat (limited to 'tools/test/stress2/misc/symlink4.sh')
-rwxr-xr-x | tools/test/stress2/misc/symlink4.sh | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/tools/test/stress2/misc/symlink4.sh b/tools/test/stress2/misc/symlink4.sh new file mode 100755 index 000000000000..7184b2a1ed28 --- /dev/null +++ b/tools/test/stress2/misc/symlink4.sh @@ -0,0 +1,125 @@ +#!/bin/sh + +# +# Copyright (c) 2018 Dell EMC Isilon +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# + +# Testing with links longer than 120 characters, which is not stored in the +# inode but will be placed in its own data fragment. + +# "panic: softdep_deallocate_dependencies: dangling deps" seen with SU: +# https://people.freebsd.org/~pho/stress/log/symlink4.txt +# Fixed by r327821 + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/symlink4.c +mycc -o symlink4 -Wall -Wextra -O0 -g symlink4.c || exit 1 +rm -f symlink4.c +cd $odir + +set -e +mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +bsdlabel -w md$mdstart auto +newfs $newfs_flags md${mdstart}$part > /dev/null +mount /dev/md${mdstart}$part $mntpoint +set +e + +cd $mntpoint +i=`df -ik $mntpoint | tail -1 | awk '{printf "%d\n", ($7 - 500)/2}'` +/tmp/symlink4 $i +s=$? +[ -f symlink4.core -a $s -eq 0 ] && + { ls -l symlink4.core; mv symlink4.core /tmp; s=1; } +cd $odir + +for i in `jot 6`; do + mount | grep -q "on $mntpoint " || break + umount $mntpoint && break || sleep 10 +done +[ $i -eq 6 ] && exit 1 +mdconfig -d -u $mdstart +rm -rf $dir/symlink4 +exit $s + +EOF +#include <sys/types.h> +#include <sys/mount.h> +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/sysctl.h> + +#include <unistd.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +int +main(int argc, char **argv) +{ + int64_t size; + pid_t pid; + int i, j; + char file[128], link[256]; + + if (argc != 2) + errx(1, "Usage: %s <links>", argv[0]); + size = atol(argv[1]); + strcpy(link, "/mnt/not/there/"); + for (i = 15; i < 200; i++) + link[i] = '1'; + link[++i] = 0; + + pid = getpid(); + for (j = 0; j < size; j++) { + sprintf(file,"p%05d.%05d", pid, j); + if (symlink(link, file) == -1) { + if (errno != EINTR) { + warn("symlink(%s, %s)", link, file); + printf("break out at %d, errno %d\n", j, + errno); + break; + } + } + } + + for (i = --j; i >= 0; i--) { + sprintf(file,"p%05d.%05d", pid, i); + if (unlink(file) == -1) + err(3, "unlink(%s)", file); + + } + return (0); +} |