1#!/bin/sh 2 3# 4# Copyright (c) 2009 Peter Holm <pho@FreeBSD.org> 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28# $FreeBSD$ 29# 30 31# "panic: swap_reserved < decr" seen. Fixed in r195329 32 33. ../default.cfg 34 35[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 36 37odir=`pwd` 38cd /tmp 39sed '1,/^EOF/d' < $odir/$0 > mlockall.c 40cc -o mlockall -Wall mlockall.c 41rm -f mlockall.c 42 43for i in `jot 10`; do 44 /tmp/mlockall & 45 sleep 1 46 ps | grep /tmp/mlockall | grep -v grep | awk '{print $1}' | while read pid; do 47 kill -2 $pid 48 kill -9 $pid 49 done 50done 51 52rm -f /tmp/mlockall 53exit 54EOF 55#include <err.h> 56#include <stdlib.h> 57#include <sys/mman.h> 58#include <sys/types.h> 59#include <sys/wait.h> 60#include <unistd.h> 61 62void 63child(void) 64{ 65 if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1) 66 err(1, "mlockall(MCL_CURRENT | MCL_FUTURE)"); 67 fork(); 68 sleep(60); 69} 70 71int 72main(int argc, char **argv) 73{ 74 int status; 75 76 if (fork() == 0) 77 child(); 78 wait(&status); 79 80 return (0); 81} 82