1*8a272653SPeter Holm#!/bin/sh 2*8a272653SPeter Holm 3*8a272653SPeter Holm# 4*8a272653SPeter Holm# Copyright (c) 2013 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# "panic: kmem_malloc(4096): kmem_map too small" seen. 30*8a272653SPeter Holm 31*8a272653SPeter Holm. ../default.cfg 32*8a272653SPeter Holm[ $((`sysctl -n vm.kmem_size` / 1024 / 1024 / 1024)) -eq 0 ] && exit 0 33*8a272653SPeter Holm 34*8a272653SPeter Holmdir=/tmp 35*8a272653SPeter Holmodir=`pwd` 36*8a272653SPeter Holmcd $dir 37*8a272653SPeter Holmsed '1,/^EOF/d' < $odir/$0 > $dir/shm_open.c 38*8a272653SPeter Holmmycc -o shm_open -Wall -Wextra -O2 -g shm_open.c || exit 1 39*8a272653SPeter Holmrm -f shm_open.c 40*8a272653SPeter Holmcd $odir 41*8a272653SPeter Holm 42*8a272653SPeter Holmv1=`vmstat -m | awk '/shmfd/{gsub("K", ""); print $3}'` 43*8a272653SPeter Holmsu $testuser -c /tmp/shm_open 44*8a272653SPeter Holmv2=`vmstat -m | awk '/shmfd/{gsub("K", ""); print $3}'` 45*8a272653SPeter Holmv2=$((v2 - v1)) 46*8a272653SPeter Holm[ $v2 -gt 10 ] && { echo "shmfd leaked ${v2}K"; s=1; } || s=0 47*8a272653SPeter Holm 48*8a272653SPeter Holmrm -f /tmp/shm_open 49*8a272653SPeter Holmexit $s 50*8a272653SPeter Holm 51*8a272653SPeter HolmEOF 52*8a272653SPeter Holm#include <err.h> 53*8a272653SPeter Holm#include <fcntl.h> 54*8a272653SPeter Holm#include <stdio.h> 55*8a272653SPeter Holm#include <stdlib.h> 56*8a272653SPeter Holm#include <sys/mman.h> 57*8a272653SPeter Holm#include <unistd.h> 58*8a272653SPeter Holm 59*8a272653SPeter Holmint 60*8a272653SPeter Holmmain(void) 61*8a272653SPeter Holm{ 62*8a272653SPeter Holm pid_t pid; 63*8a272653SPeter Holm off_t len; 64*8a272653SPeter Holm int fd, i; 65*8a272653SPeter Holm char name[80]; 66*8a272653SPeter Holm 67*8a272653SPeter Holm len = 1024 * 1024; 68*8a272653SPeter Holm pid = getpid(); 69*8a272653SPeter Holm for (i = 0; i < 500000; i++) { 70*8a272653SPeter Holm sprintf(name, "/testing.%06d.%06d", pid, i); 71*8a272653SPeter Holm 72*8a272653SPeter Holm if ((fd = shm_open(name, O_RDWR | O_CREAT, 0644)) == -1) 73*8a272653SPeter Holm err(1, "shm_open()"); 74*8a272653SPeter Holm if (ftruncate(fd, len) == -1) 75*8a272653SPeter Holm err(1, "ftruncate"); 76*8a272653SPeter Holm close(fd); 77*8a272653SPeter Holm } 78*8a272653SPeter Holm for (i = 0; i < 500000; i++) { 79*8a272653SPeter Holm sprintf(name, "/testing.%06d.%06d", pid, i); 80*8a272653SPeter Holm if (shm_unlink(name) == -1) 81*8a272653SPeter Holm err(1, "shm_unlink(%s)", name); 82*8a272653SPeter Holm } 83*8a272653SPeter Holm 84*8a272653SPeter Holm return(0); 85*8a272653SPeter Holm} 86