125 lines
3.0 KiB
Bash
Executable File
125 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2016 EMC Corp.
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# All rights reserved.
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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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# Variation of truncate3.sh.
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# No problems seen.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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mount | grep -q "$mntpoint" && umount $mntpoint
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mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 400m -u $mdstart
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bsdlabel -w md$mdstart auto
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if [ `jot -r 1 0 1` -eq 0 ]; then
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newfs $newfs_flags md${mdstart}$part > /dev/null
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else
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newfs md${mdstart}$part > /dev/null
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fi
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mount /dev/md${mdstart}$part $mntpoint
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export RUNDIR=$mntpoint/stressX
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > truncate7.c
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mycc -o truncate7 -Wall -O2 truncate7.c
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rm -f truncate7.c
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[ -d $RUNDIR ] || mkdir -p $RUNDIR
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cd $RUNDIR
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/tmp/truncate7
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cd $here
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rm -f /tmp/truncate7
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sync;sync;sync
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while mount | grep -q $mntpoint; do
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sync;sync;sync
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sleep 1
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umount $mntpoint
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done
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checkfs /dev/md${mdstart}$part; s=$?
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mdconfig -d -u $mdstart
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exit $s
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EOF
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#include <fcntl.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#define SIZ 512
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char buf[SIZ];
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void
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test(void)
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{
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int fd[10], i, j;
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char name[128];
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off_t len;
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for (j = 0; j < 10; j++) {
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sprintf(name, "%05d.%05d", getpid(), j);
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fd[j] = open(name, O_WRONLY | O_CREAT | O_APPEND, 0666);
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if (fd[j] == -1)
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err(1, "open(%s)", name);
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unlink(name);
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}
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for (i = 0; i < 100; i++) {
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for (j = 0; j < 10; j++) {
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if (write(fd[j], buf, 2) != 2)
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err(1, "write");
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len = arc4random() % (1024 * 1024);
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if (ftruncate(fd[j], len) == -1)
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err(1, "ftruncate");
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}
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}
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exit(0);
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}
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int
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main(int argc, char **argv)
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{
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int i, status;
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for (i = 0; i < 20; i++) {
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if (fork() == 0)
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test();
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}
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for (i = 0; i < 20; i++)
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wait(&status);
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return (0);
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}
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