1#!/bin/sh 2 3# 4# Copyright (c) 2016 EMC Corp. 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 29# Demonstrate VM leakage. Not seen on FreeBSD HEAD. 30 31. ../default.cfg 32 33here=`pwd` 34cd /tmp 35sed '1,/^EOF/d' < $here/$0 > thr3.c 36mycc -o thr3 -Wall -Wextra -O0 thr3.c -lpthread || exit 1 37rm -f thr3.c 38 39./thr3 & 40pid=$! 41 42log=/tmp/$0.$$ 43trap "rm -f $log" EXIT INT 44r=`ps -Ovsz -p $pid | head -1` 45echo " $r" > $log 46export max=0 47export n=0 48while true; do 49 sleep 30 50 vsz=`ps -Ovsz -p $pid | tail -1 | awk '{print $2}'` 51 [ -z "$vsz" -o "$vsz" = VSZ ] && break 52 if [ $vsz -gt $max ]; then 53 max=$vsz 54 r=`ps -Ovsz -p $pid | tail -1` 55 echo "`date '+%T'` $r" 56 n=$((n + 1)) 57 fi 58done >> $log 2>&1 59[ $n -gt 1 ] && cat $log 60wait 61rm -f thr3 62[ $n -gt 1 ] && exit 1 || exit 0 63EOF 64#include <sys/types.h> 65#include <sys/time.h> 66 67#include <err.h> 68#include <fcntl.h> 69#include <pthread.h> 70#include <stdio.h> 71#include <stdlib.h> 72#include <unistd.h> 73 74#define NTHREADS 256 75#define RUNTIME (3 * 60) 76 77static void * 78thr_routine(void *arg __unused) 79{ 80 getuid(); 81 return (NULL); 82} 83 84int 85main(void) 86{ 87 pthread_t threads[NTHREADS]; 88 time_t start; 89 int i, r; 90 91 start = time(NULL); 92 while (time(NULL) - start < RUNTIME) { 93 for (i = 0; i < NTHREADS; i++) 94 if ((r = pthread_create(&threads[i], NULL, 95 thr_routine, NULL)) != 0) 96 errc(1, r, "pthread_create()"); 97 98 for (i = 0; i < NTHREADS; i++) 99 if ((r = pthread_join(threads[i], NULL)) != 0) 100 errc(1, r, "pthread_join(%d)", i); 101 } 102 103 return (0); 104} 105