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 $mdstart 49bsdlabel -w md$mdstart auto 50newfs $newfs_flags md${mdstart}$part > /dev/null 51mount /dev/md${mdstart}$part $mntpoint 52chmod 777 $mntpoint 53 54su $testuser -c "(cd $mntpoint; /tmp/kevent8)" & 55for i in `jot 99`; do 56 sleep 1 57 kill -0 $! 2>/dev/null || break 58done 59umount -f $mntpoint 60pkill kevent8 61wait 62 63while mount | grep -q $mntpoint; do 64 umount $mntpoint || sleep 1 65done 66mdconfig -d -u $mdstart 67rm -f /tmp/kevent8 68 69exit 70EOF 71#include <sys/types.h> 72#include <sys/event.h> 73#include <sys/mman.h> 74#include <sys/wait.h> 75 76#include <err.h> 77#include <errno.h> 78#include <fcntl.h> 79#include <pthread.h> 80#include <sched.h> 81#include <signal.h> 82#include <stdio.h> 83#include <stdlib.h> 84#include <string.h> 85#include <unistd.h> 86 87#define PARALLEL 64 88 89static int fd; 90static char path[80]; 91 92static void * 93spin(void *arg __unused) 94{ 95 int i; 96 setproctitle("spin"); 97 98 for (i= 0;; i++) { 99 snprintf(path, sizeof(path), "file.%06d.%d", getpid(), i); 100 if ((fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622)) == 101 -1) 102 err(1, "creat()"); 103 close(fd); 104 fd = 0; 105 unlink(path); 106 } 107 return (NULL); 108} 109 110static void * 111test(void *arg __unused) 112{ 113 int kq; 114 int i, n; 115 struct kevent ev; 116 struct timespec ts; 117 118 for (i = 0; i < 500000; i++) { 119 if ((kq = kqueue()) < 0) 120 if (errno != ENOMEM) 121 err(1, "kqueue()"); 122 123 n = 0; 124 memset(&ev, 0, sizeof(ev)); 125 EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, 126 NOTE_DELETE|NOTE_RENAME|NOTE_EXTEND, 0, 0); 127 n++; 128 129 if (kevent(kq, &ev, n, NULL, 0, NULL) < 0) 130 continue; /* Note: missing close(kq)! */ 131 132 memset(&ev, 0, sizeof(ev)); 133 ts.tv_sec = 0; 134 ts.tv_nsec = 1000000; 135 if ((n = kevent(kq, NULL, 0, &ev, 1, &ts)) == -1) 136 err(1, "kevent()"); 137 138 close(kq); 139 } 140 return (NULL); 141} 142 143int 144main(void) 145{ 146 pthread_t cp[PARALLEL], sp; 147 int e, i; 148 149 if ((e = pthread_create(&sp, NULL, spin, NULL)) != 0) 150 errc(1, e, "pthread_create"); 151 152 for (i = 0; i < PARALLEL; i++) { 153 if ((e = pthread_create(&cp[i], NULL, test, NULL)) != 0) 154 errc(1, e, "pthread_create"); 155 } 156 157 for (i = 0; i < PARALLEL; i++) 158 pthread_join(cp[i], NULL); 159 160 close(fd); 161 162 return (0); 163} 164