18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 44d846d26SWarner Losh# SPDX-License-Identifier: BSD-2-Clause 58a272653SPeter Holm# 68a272653SPeter Holm# Copyright (c) 2019 Dell EMC Isilon 78a272653SPeter Holm# 88a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 98a272653SPeter Holm# modification, are permitted provided that the following conditions 108a272653SPeter Holm# are met: 118a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 128a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 138a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 148a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 158a272653SPeter Holm# documentation and/or other materials provided with the distribution. 168a272653SPeter Holm# 178a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 188a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 198a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 208a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 218a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 228a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 238a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 248a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 258a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 268a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 278a272653SPeter Holm# SUCH DAMAGE. 288a272653SPeter Holm# 298a272653SPeter Holm 308a272653SPeter Holm# getrandom() non threaded test 318a272653SPeter Holm# Reset seen on i386 328a272653SPeter Holm 338a272653SPeter Holm. ../default.cfg 348a272653SPeter Holm[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 358a272653SPeter Holm[ `uname -m` = "i386" ] || exit 0 368a272653SPeter Holm 378a272653SPeter Holmdir=/tmp 388a272653SPeter Holmodir=`pwd` 398a272653SPeter Holmcd $dir 408a272653SPeter Holmsed '1,/^EOF/d' < $odir/$0 > $dir/getrandom.c 418a272653SPeter Holmmycc -o getrandom -Wall -Wextra -O0 -g getrandom.c || exit 1 428a272653SPeter Holmrm -f getrandom.c 438a272653SPeter Holmcd $odir 448a272653SPeter Holm 458a272653SPeter Holmset -e 468a272653SPeter Holmmount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint 478a272653SPeter Holm[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 488a272653SPeter Holmmdconfig -a -t swap -s 2g -u $mdstart 49608c97bfSPeter Holmnewfs $newfs_flags md$mdstart > /dev/null 50608c97bfSPeter Holmmount /dev/md$mdstart $mntpoint 518a272653SPeter Holmset +e 528a272653SPeter Holm 538a272653SPeter Holm(cd $odir/../testcases/swap; ./swap -t 5m -i 40 -l 100) & 548a272653SPeter Holmcd $mntpoint 558a272653SPeter Holmtimeout 5m limits -c 0 $dir/getrandom 568a272653SPeter Holms=0 578a272653SPeter Holmwhile pgrep -q swap; do pkill swap; done 588a272653SPeter Holmcd $odir 598a272653SPeter Holm 608a272653SPeter Holmfor i in `jot 6`; do 618a272653SPeter Holm mount | grep -q "on $mntpoint " || break 628a272653SPeter Holm umount $mntpoint && break || sleep 10 638a272653SPeter Holm [ $i -eq 6 ] && 648a272653SPeter Holm { echo FATAL; fstat -mf $mntpoint; exit 1; } 658a272653SPeter Holmdone 668a272653SPeter Holmmdconfig -d -u $mdstart 678a272653SPeter Holmrm -rf $dir/getrandom 688a272653SPeter Holmexit $s 698a272653SPeter Holm 708a272653SPeter HolmEOF 718a272653SPeter Holm#include <sys/param.h> 728a272653SPeter Holm#include <sys/mman.h> 738a272653SPeter Holm#include <sys/random.h> 748a272653SPeter Holm#include <sys/stat.h> 758a272653SPeter Holm#include <sys/wait.h> 768a272653SPeter Holm 778a272653SPeter Holm#include <machine/atomic.h> 788a272653SPeter Holm 798a272653SPeter Holm#include <err.h> 808a272653SPeter Holm#include <errno.h> 818a272653SPeter Holm#include <fcntl.h> 828a272653SPeter Holm#include <stdio.h> 838a272653SPeter Holm#include <stdlib.h> 848a272653SPeter Holm#include <time.h> 858a272653SPeter Holm#include <unistd.h> 868a272653SPeter Holm 878a272653SPeter Holmstatic volatile u_int *share; 888a272653SPeter Holm 898a272653SPeter Holm#define PARALLEL 50 908a272653SPeter Holm#define RUNTIME (5 * 60) 918a272653SPeter Holm#define SYNC 0 928a272653SPeter Holm 938a272653SPeter Holmstatic void 948a272653SPeter Holmtest(void) 958a272653SPeter Holm{ 968a272653SPeter Holm time_t start; 978a272653SPeter Holm 988a272653SPeter Holm atomic_add_int(&share[SYNC], 1); 998a272653SPeter Holm while (share[SYNC] != PARALLEL) 1008a272653SPeter Holm ; 1018a272653SPeter Holm 1028a272653SPeter Holm alarm(65); 1038a272653SPeter Holm start = time(NULL); 1048a272653SPeter Holm while ((time(NULL) - start) < 60) 1058a272653SPeter Holm getrandom((void *)arc4random(), arc4random(), arc4random() & 3); 1068a272653SPeter Holm 1078a272653SPeter Holm _exit(0); 1088a272653SPeter Holm} 1098a272653SPeter Holm 1108a272653SPeter Holmint 1118a272653SPeter Holmmain(void) 1128a272653SPeter Holm{ 1138a272653SPeter Holm pid_t pids[PARALLEL]; 1148a272653SPeter Holm size_t len; 1158a272653SPeter Holm time_t start; 1168a272653SPeter Holm int e, i, status; 1178a272653SPeter Holm 1188a272653SPeter Holm e = 0; 1198a272653SPeter Holm len = PAGE_SIZE; 1208a272653SPeter Holm if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, 1218a272653SPeter Holm MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) 1228a272653SPeter Holm err(1, "mmap"); 1238a272653SPeter Holm 1248a272653SPeter Holm start = time(NULL); 1258a272653SPeter Holm while ((time(NULL) - start) < RUNTIME) { 1268a272653SPeter Holm share[SYNC] = 0; 1278a272653SPeter Holm for (i = 0; i < PARALLEL; i++) { 1288a272653SPeter Holm if ((pids[i] = fork()) == 0) 1298a272653SPeter Holm test(); 1308a272653SPeter Holm if (pids[i] == -1) 1318a272653SPeter Holm err(1, "fork()"); 1328a272653SPeter Holm } 1338a272653SPeter Holm for (i = 0; i < PARALLEL; i++) { 1348a272653SPeter Holm if (waitpid(pids[i], &status, 0) == -1) 1358a272653SPeter Holm err(1, "waitpid(%d)", pids[i]); 1368a272653SPeter Holm e += status == 0 ? 0 : 1; 1378a272653SPeter Holm } 1388a272653SPeter Holm } 1398a272653SPeter Holm 1408a272653SPeter Holm return (e); 1418a272653SPeter Holm} 142