207 lines
4.9 KiB
Bash
207 lines
4.9 KiB
Bash
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#!/bin/sh
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#
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# Copyright (c) 2013 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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# Page fault seen
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# http://people.freebsd.org/~pho/stress/log/kostik654.txt
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# Fixed by r259521.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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odir=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $odir/$0 > fifo2.c
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rm -f /tmp/fifo2
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mycc -o fifo2 -Wall -Wextra -O2 -g fifo2.c -lpthread || exit 1
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rm -f fifo2.c
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mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 1g -u $mdstart || exit 1
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bsdlabel -w md$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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chmod 777 $mntpoint
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mkfifo $mntpoint/f
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chmod 777 $mntpoint/f
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sleeptime=12
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st=`date '+%s'`
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while [ $((`date '+%s'` - st)) -lt $((10 * sleeptime)) ]; do
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(cd $mntpoint; /tmp/fifo2) &
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start=`date '+%s'`
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while [ $((`date '+%s'` - start)) -lt $sleeptime ]; do
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pgrep -q fifo2 || break
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sleep .5
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done
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while pkill -9 fifo2; do :; done
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wait
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done
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for i in `jot 10`; do
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mount | grep -q md${mdstart}$part && \
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umount $mntpoint > /dev/null 2>&1 &&
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mdconfig -d -u $mdstart && break
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sleep 10
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done
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s=0
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mount | grep -q md${mdstart}$part &&
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{ echo "umount $mntpoint failed"; s=1; }
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rm -f /tmp/fifo2
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exit $s
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EOF
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#include <sys/types.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <sys/syscall.h>
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#include <sys/wait.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 <libutil.h>
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#include <pthread.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdint.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 N (128 * 1024 / (int)sizeof(u_int32_t))
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u_int32_t r[N];
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static void
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hand(int i __unused) { /* handler */
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_exit(1);
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}
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static unsigned long
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makearg(void)
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{
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unsigned int i;
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unsigned long val;
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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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calls(void *arg __unused)
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{
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unsigned long arg1, arg2, arg3, arg4, arg5, arg6, arg7;
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int i, num;
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for (i = 0;; i++) {
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arg1 = (unsigned long)(void *)"f";
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arg2 = makearg();
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arg3 = makearg();
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arg4 = makearg();
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arg5 = makearg();
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arg6 = makearg();
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arg7 = makearg();
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#if 0
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fprintf(stderr, "%2d : syscall(%3d, %lx, %lx, %lx, %lx, %lx, %lx, %lx)\n",
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i, SYS_open, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
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usleep(100000);
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#endif
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alarm(1);
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syscall(SYS_open, arg1, arg2, arg3, arg4, arg5, arg6, arg7);
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num = 0;
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}
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return (0);
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}
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int
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main(void)
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{
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struct passwd *pw;
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struct rlimit limit;
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pthread_t cp[50];
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time_t start;
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int e, j;
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if ((pw = getpwnam("nobody")) == NULL)
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err(1, "no such user: nobody");
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if (setgroups(1, &pw->pw_gid) ||
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setegid(pw->pw_gid) || setgid(pw->pw_gid) ||
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seteuid(pw->pw_uid) || setuid(pw->pw_uid))
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err(1, "Can't drop privileges to \"nobody\"");
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endpwent();
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limit.rlim_cur = limit.rlim_max = 1000;
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if (setrlimit(RLIMIT_NPTS, &limit) < 0)
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err(1, "setrlimit");
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signal(SIGALRM, hand);
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signal(SIGILL, hand);
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signal(SIGFPE, hand);
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signal(SIGSEGV, hand);
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signal(SIGBUS, hand);
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signal(SIGURG, hand);
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signal(SIGSYS, hand);
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signal(SIGTRAP, hand);
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start = time(NULL);
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while ((time(NULL) - start) < 120) {
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if (fork() == 0) {
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for (j = 0; j < 1; j++)
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if ((e = pthread_create(&cp[j], NULL, calls, NULL)) != 0)
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errc(1, e,"pthread_create");
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for (j = 0; j < 1; j++)
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pthread_join(cp[j], NULL);
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_exit(0);
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}
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wait(NULL);
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}
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return (0);
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}
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