stress2: Added a regression test
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Peter Holm
parent
f32db40650
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4dcc6baddb
156
tools/test/stress2/misc/fsync3.sh
Executable file
156
tools/test/stress2/misc/fsync3.sh
Executable file
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#!/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) 2023 Peter Holm <pho@FreeBSD.org>
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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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# Regression test for D37997: ffs_syncvnode(): avoid a LoR for SU
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# https://people.freebsd.org/~pho/stress/log/log0402.txt
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# Fixed by 6e1eabadcb1d - main - ffs_syncvnode(): avoid a LoR for SU
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# Test scenario based on report by jkim
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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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prog=$(basename "$0" .sh)
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/$prog.c
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mycc -o $prog -Wall -Wextra -O0 -g $prog.c -lpthread || exit 1
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rm -f $prog.c
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cd $odir
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set -eu
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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 1g -u $mdstart
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newfs -U md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint
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set +e
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cd $odir
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../testcases/swap/swap -t 1m -i 20 -l 100 > /dev/null &
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sleep .5
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cd $mntpoint
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mkdir -p d1/d2/d3/d4/d5
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for i in `jot 8`; do
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$dir/$prog $i &
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done
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cd $odir
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wait
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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 $dir/$prog
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exit 0
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EOF
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <pthread_np.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define RUNTIME 60
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static time_t start;
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static volatile int fd, n;
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static char buf[4096];
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static void *
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t1(void *data __unused)
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{
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char *path = "d1/d2/d3/d4/d5";
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char d1[1024], d2[1024], file[1024];
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pthread_set_name_np(pthread_self(), __func__);
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snprintf(d1, sizeof(d1), "%s/dir.%d", path, getpid());
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snprintf(d2, sizeof(d2), "%s/new.%d", path, getpid());
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snprintf(file, sizeof(file), "%s/../file.%d", path, getpid());
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while (time(NULL) - start < RUNTIME) {
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if (mkdir(d1, 0740) == -1)
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err(1, "mkdir(%s)", d1);
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if (rename(d1, d2) == -1)
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err(1, "rename(%s, %s)", d1, d2);
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if ((fd = open(file, O_RDWR | O_CREAT | O_TRUNC, 0600)) == -1)
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err(1, "open%s()", file);
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if (write(fd, buf, sizeof(buf)) != sizeof(buf))
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err(1, "write()");
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close(fd);
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if (rename(d2, d1) == -1)
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err(1, "rename(%s, %s)", d2, d1);
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if (rmdir(d1) == -1)
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err(1, "rmdir(%s)", d1);
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}
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return (NULL);
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}
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static void *
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t2(void *data __unused)
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{
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pthread_set_name_np(pthread_self(), __func__);
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while (time(NULL) - start < RUNTIME) {
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fsync(fd);
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usleep(arc4random() % 500);
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}
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return (NULL);
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}
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int
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main(int argc __unused, char *argv[])
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{
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pthread_t tid[2];
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int r;
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n = atoi(argv[1]);
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start = time(NULL);
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if ((r = pthread_create(&tid[0], NULL, t1, NULL)) != 0)
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errc(1, r, "pthread_create");
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if ((r = pthread_create(&tid[1], NULL, t2, NULL)) != 0)
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errc(1, r, "pthread_create");
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if ((r = pthread_join(tid[0], NULL)) != 0)
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errc(1, r, "pthread_join");
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if ((r = pthread_join(tid[1], NULL)) != 0)
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errc(1, r, "pthread_join");
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return (0);
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}
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