Warner Losh
4d846d260e
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
189 lines
4.5 KiB
Bash
Executable File
189 lines
4.5 KiB
Bash
Executable File
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2019 Dell EMC Isilon
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# fcntl(2) fuzz
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# "umount: unmount of /mnt failed: Device busy" seen:
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# https://people.freebsd.org/~pho/stress/log/fcntl2.txt
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. ../default.cfg
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[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
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dir=/tmp
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odir=`pwd`
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/fcntl2.c
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mycc -o fcntl2 -Wall -Wextra -O0 -g fcntl2.c || exit 1
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rm -f fcntl2.c
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cd $odir
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set -e
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mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
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[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -u $mdstart
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newfs $newfs_flags md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint
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set +e
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(cd $odir/../testcases/swap; ./swap -t 3m -i 20) &
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cd $mntpoint
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limits -n 10000 $dir/fcntl2
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s=$?
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[ -f fcntl2.core -a $s -eq 0 ] &&
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{ ls -l fcntl2.core; mv fcntl2.core $dir; s=1; }
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cd $odir
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while pkill swap; do :; done
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for i in `jot 6`; do
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mount | grep -q "on $mntpoint " || break
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umount $mntpoint && break || sleep 10
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[ $i -eq 6 ] &&
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{ echo FATAL; fstat -mf $mntpoint; exit 1; }
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done
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mdconfig -d -u $mdstart
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rm -rf $dir/fcntl2
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exit $s
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EOF
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#include <sys/param.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <machine/atomic.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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static volatile u_int *share;
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#define PARALLEL 64
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#define RUNTIME (3 * 60)
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#define SYNC 0
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#define N (128 * 1024 / (int)sizeof(u_int32_t))
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static u_int32_t r[N];
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static unsigned long
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makearg(void)
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{
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unsigned long val;
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unsigned int i;
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val = arc4random();
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i = arc4random() % 100;
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if (i < 20)
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val = val & 0xff;
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if (i >= 20 && i < 40)
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val = val & 0xffff;
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if (i >= 40 && i < 60)
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val = (unsigned long)(r) | (val & 0xffff);
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#if defined(__LP64__)
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if (i >= 60) {
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val = (val << 32) | arc4random();
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if (i > 80)
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val = val & 0x00007fffffffffffUL;
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}
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#endif
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return (val);
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}
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static void
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test(void)
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{
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time_t start;
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unsigned long arg3;
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int cmd, fd, i, n, success;
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char file[80];
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atomic_add_int(&share[SYNC], 1);
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while (share[SYNC] != PARALLEL)
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;
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success = 0;
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snprintf(file, sizeof(file), "file.%d", getpid());
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if ((fd = open(file, O_RDWR | O_CREAT | O_TRUNC, DEFFILEMODE))
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== -1)
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err(1, "open(%s)", file);
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n = arc4random() % 100 + 1;
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for (i = 0; i < n; i++)
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if (write(fd, file, sizeof(file)) != sizeof(file))
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err(1, "write()");
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start = time(NULL);
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while (time(NULL) - start < 60) {
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cmd = arc4random() % 20;
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arg3 = makearg();
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alarm(20);
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if (fcntl(fd, cmd, arg3) != -1)
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success++;
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alarm(0);
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}
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close(fd);
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unlink(file);
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_exit(0);
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}
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int
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main(void)
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{
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pid_t pids[PARALLEL];
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size_t len;
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time_t start;
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int i, status;
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len = PAGE_SIZE;
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if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE,
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MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED)
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err(1, "mmap");
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start = time(NULL);
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while ((time(NULL) - start) < RUNTIME) {
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for (i = 0; i < N; i++)
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r[i] = arc4random();
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share[SYNC] = 0;
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for (i = 0; i < PARALLEL; i++) {
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if ((pids[i] = fork()) == 0)
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test();
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if (pids[i] == -1)
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err(1, "fork()");
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}
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for (i = 0; i < PARALLEL; i++) {
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if (waitpid(pids[i], &status, 0) == -1)
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err(1, "waitpid(%d)", pids[i]);
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}
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}
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return (0);
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}
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