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142 lines
3.5 KiB
Bash
Executable file
142 lines
3.5 KiB
Bash
Executable file
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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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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# getrandom() non threaded test
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# Reset seen on i386
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. ../default.cfg
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[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
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[ `uname -m` = "i386" ] || exit 0
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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/getrandom.c
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mycc -o getrandom -Wall -Wextra -O0 -g getrandom.c || exit 1
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rm -f getrandom.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 $mdstart
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bsdlabel -w md$mdstart auto
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newfs $newfs_flags md${mdstart}$part > /dev/null
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mount /dev/md${mdstart}$part $mntpoint
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set +e
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(cd $odir/../testcases/swap; ./swap -t 5m -i 40 -l 100) &
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cd $mntpoint
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timeout 5m limits -c 0 $dir/getrandom
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s=0
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while pgrep -q swap; do pkill swap; done
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cd $odir
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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/getrandom
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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/random.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 50
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#define RUNTIME (5 * 60)
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#define SYNC 0
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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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atomic_add_int(&share[SYNC], 1);
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while (share[SYNC] != PARALLEL)
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;
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alarm(65);
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start = time(NULL);
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while ((time(NULL) - start) < 60)
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getrandom((void *)arc4random(), arc4random(), arc4random() & 3);
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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 e, i, status;
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e = 0;
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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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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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e += status == 0 ? 0 : 1;
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}
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}
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return (e);
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}
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