1#!/bin/sh 2 3# 4# Copyright (c) 2013 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# Out of VM seen due to missing close of kqueue handle. 30# Fixed in 256849 31 32. ../default.cfg 33 34[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35ulimit -k 5000 || { echo FAIL; exit 1; } 36 37odir=`pwd` 38 39cd /tmp 40sed '1,/^EOF/d' < $odir/$0 > kevent8.c 41mycc -o kevent8 -Wall -Wextra -O2 -g kevent8.c -lpthread || exit 1 42rm -f kevent8.c 43cd $odir 44 45mount | grep "on $mntpoint " | grep -q md$mdstart && umount -f $mntpoint 46mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart 47 48mdconfig -a -t swap -s 2g -u $mdstart 49newfs $newfs_flags md$mdstart > /dev/null 50mount /dev/md$mdstart $mntpoint 51chmod 777 $mntpoint 52 53su $testuser -c "(cd $mntpoint; /tmp/kevent8)" & 54for i in `jot 99`; do 55 sleep 1 56 kill -0 $! 2>/dev/null || break 57done 58umount -f $mntpoint 59pkill kevent8 60wait 61 62while mount | grep -q $mntpoint; do 63 umount $mntpoint || sleep 1 64done 65mdconfig -d -u $mdstart 66rm -f /tmp/kevent8 67 68exit 69EOF 70#include <sys/types.h> 71#include <sys/event.h> 72#include <sys/mman.h> 73#include <sys/wait.h> 74 75#include <err.h> 76#include <errno.h> 77#include <fcntl.h> 78#include <pthread.h> 79#include <sched.h> 80#include <signal.h> 81#include <stdio.h> 82#include <stdlib.h> 83#include <string.h> 84#include <unistd.h> 85 86#define PARALLEL 64 87 88static int fd; 89static char path[80]; 90 91static void * 92spin(void *arg __unused) 93{ 94 int i; 95 setproctitle("spin"); 96 97 for (i= 0;; i++) { 98 snprintf(path, sizeof(path), "file.%06d.%d", getpid(), i); 99 if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == 100 -1) 101 err(1, "creat()"); 102 close(fd); 103 fd = 0; 104 unlink(path); 105 } 106 return (NULL); 107} 108 109static void * 110test(void *arg __unused) 111{ 112 int kq; 113 int i, n; 114 struct kevent ev; 115 struct timespec ts; 116 117 for (i = 0; i < 500000; i++) { 118 if ((kq = kqueue()) < 0) 119 if (errno != ENOMEM) 120 err(1, "kqueue()"); 121 122 n = 0; 123 memset(&ev, 0, sizeof(ev)); 124 EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, 125 NOTE_DELETE|NOTE_RENAME|NOTE_EXTEND, 0, 0); 126 n++; 127 128 if (kevent(kq, &ev, n, NULL, 0, NULL) < 0) 129 continue; /* Note: missing close(kq)! */ 130 131 memset(&ev, 0, sizeof(ev)); 132 ts.tv_sec = 0; 133 ts.tv_nsec = 1000000; 134 if ((n = kevent(kq, NULL, 0, &ev, 1, &ts)) == -1) 135 err(1, "kevent()"); 136 137 close(kq); 138 } 139 return (NULL); 140} 141 142int 143main(void) 144{ 145 pthread_t cp[PARALLEL], sp; 146 int e, i; 147 148 if ((e = pthread_create(&sp, NULL, spin, NULL)) != 0) 149 errc(1, e, "pthread_create"); 150 151 for (i = 0; i < PARALLEL; i++) { 152 if ((e = pthread_create(&cp[i], NULL, test, NULL)) != 0) 153 errc(1, e, "pthread_create"); 154 } 155 156 for (i = 0; i < PARALLEL; i++) 157 pthread_join(cp[i], NULL); 158 159 close(fd); 160 161 return (0); 162} 163