1*8a272653SPeter Holm#!/bin/sh 2*8a272653SPeter Holm 3*8a272653SPeter Holm# 4*8a272653SPeter Holm# Copyright (c) 2012 Peter Holm <pho@FreeBSD.org> 5*8a272653SPeter Holm# All rights reserved. 6*8a272653SPeter Holm# 7*8a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 8*8a272653SPeter Holm# modification, are permitted provided that the following conditions 9*8a272653SPeter Holm# are met: 10*8a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 11*8a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 12*8a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 13*8a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 14*8a272653SPeter Holm# documentation and/or other materials provided with the distribution. 15*8a272653SPeter Holm# 16*8a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17*8a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*8a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*8a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20*8a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*8a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*8a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*8a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*8a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*8a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*8a272653SPeter Holm# SUCH DAMAGE. 27*8a272653SPeter Holm# 28*8a272653SPeter Holm 29*8a272653SPeter Holm# Demonstrate vnode leak 30*8a272653SPeter Holm 31*8a272653SPeter Holm# Test scenario by Petr Salinger <Petr Salinger seznam cz> 32*8a272653SPeter Holm 33*8a272653SPeter Holm. ../default.cfg 34*8a272653SPeter Holm 35*8a272653SPeter Holmkldstat -v | grep -q pty || { kldload pty || exit 0; } 36*8a272653SPeter Holmhere=`pwd` 37*8a272653SPeter Holmcd /tmp 38*8a272653SPeter Holmsed '1,/^EOF/d' < $here/$0 > vnodes.c 39*8a272653SPeter Holmmycc -o vnodes -Wall -Wextra -O2 vnodes.c || exit 1 40*8a272653SPeter Holmrm -f vnodes.c 41*8a272653SPeter Holm 42*8a272653SPeter Holms=0 43*8a272653SPeter Holmold=`sysctl -n vfs.numvnodes` 44*8a272653SPeter Holm/tmp/vnodes 45*8a272653SPeter Holmnew=`sysctl -n vfs.numvnodes` 46*8a272653SPeter Holm[ $((new - old)) -gt 100 ] && { s=1; echo "FAIL vnode leak"; } 47*8a272653SPeter Holm 48*8a272653SPeter Holmrm -f /tmp/vnodes 49*8a272653SPeter Holmexit $s 50*8a272653SPeter HolmEOF 51*8a272653SPeter Holm#include <sys/types.h> 52*8a272653SPeter Holm#include <sys/wait.h> 53*8a272653SPeter Holm#include <err.h> 54*8a272653SPeter Holm#include <errno.h> 55*8a272653SPeter Holm#include <fcntl.h> 56*8a272653SPeter Holm#include <stdio.h> 57*8a272653SPeter Holm#include <stdlib.h> 58*8a272653SPeter Holm#include <unistd.h> 59*8a272653SPeter Holm 60*8a272653SPeter Holmchar dname[]= "/dev/ptyrX"; 61*8a272653SPeter Holm 62*8a272653SPeter Holmvoid leak(void) 63*8a272653SPeter Holm{ 64*8a272653SPeter Holm int i, fd; 65*8a272653SPeter Holm 66*8a272653SPeter Holm if (fork() == 0) { 67*8a272653SPeter Holm for (i = '0'; i < '9'; i ++) { 68*8a272653SPeter Holm dname[9] = i; 69*8a272653SPeter Holm fd = open(dname, O_RDWR); 70*8a272653SPeter Holm if (fd == -1) 71*8a272653SPeter Holm if (errno != EBUSY && errno != ENXIO) 72*8a272653SPeter Holm err(1, "open(%s)", dname); 73*8a272653SPeter Holm } 74*8a272653SPeter Holm _exit(0); 75*8a272653SPeter Holm } 76*8a272653SPeter Holm wait(NULL); 77*8a272653SPeter Holm} 78*8a272653SPeter Holm 79*8a272653SPeter Holmint main(void) 80*8a272653SPeter Holm{ 81*8a272653SPeter Holm int i; 82*8a272653SPeter Holm 83*8a272653SPeter Holm for (i = 0 ;i < 100000; i++) { 84*8a272653SPeter Holm leak(); 85*8a272653SPeter Holm } 86*8a272653SPeter Holm return (0); 87*8a272653SPeter Holm} 88