18a272653SPeter Holm#!/bin/sh 28a272653SPeter Holm 38a272653SPeter Holm# 48a272653SPeter Holm# Copyright (c) 2011 Peter Holm <pho@FreeBSD.org> 58a272653SPeter Holm# All rights reserved. 68a272653SPeter Holm# 78a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 88a272653SPeter Holm# modification, are permitted provided that the following conditions 98a272653SPeter Holm# are met: 108a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 118a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 128a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 138a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 148a272653SPeter Holm# documentation and/or other materials provided with the distribution. 158a272653SPeter Holm# 168a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 178a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 188a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 198a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 208a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 218a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 228a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 238a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 248a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 258a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 268a272653SPeter Holm# SUCH DAMAGE. 278a272653SPeter Holm# 288a272653SPeter Holm 298a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 308a272653SPeter Holm 318a272653SPeter Holm# Demonstrate premature "out of inodes" problem with SU 328a272653SPeter Holm 338a272653SPeter Holm. ../default.cfg 348a272653SPeter Holm 358a272653SPeter Holmhere=`pwd` 368a272653SPeter Holmcd /tmp 378a272653SPeter Holmsed '1,/^EOF/d' < $here/$0 > linger.c 388a272653SPeter Holmmycc -o linger -Wall -O2 linger.c 398a272653SPeter Holmrm -f linger.c 408a272653SPeter Holmcd $here 418a272653SPeter Holm 428a272653SPeter Holmmount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 438a272653SPeter Holmmdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 448a272653SPeter Holmmdconfig -a -t swap -s 1g -u $mdstart 458a272653SPeter Holm[ $# -eq 1 ] && opt="$1" 468a272653SPeter Holm[ $# -eq 0 ] && opt=$newfs_flags # No argument == default flag 47*608c97bfSPeter Holmecho "newfs $opt md$mdstart" 48*608c97bfSPeter Holmnewfs $opt md$mdstart > /dev/null 49*608c97bfSPeter Holmmount /dev/md$mdstart $mntpoint 508a272653SPeter Holmchmod 777 $mntpoint 518a272653SPeter Holm 528a272653SPeter Holmif ! su $testuser -c "cd $mntpoint; /tmp/linger $size"; then 538a272653SPeter Holm min=2 548a272653SPeter Holm [ -r $mntpoint/.sujournal ] && min=3 558a272653SPeter Holm r=`df -hi $mntpoint | head -1` 568a272653SPeter Holm echo " $r" 578a272653SPeter Holm for i in `jot 10`; do 588a272653SPeter Holm r=`df -hi $mntpoint | tail -1` 598a272653SPeter Holm echo "`date '+%T'` $r" 608a272653SPeter Holm [ `echo $r | awk '{print $6}'` = $min ] && break 618a272653SPeter Holm sleep 10 628a272653SPeter Holm done 638a272653SPeter Holm ls -lR $mntpoint 648a272653SPeter Holmfi 658a272653SPeter Holm 668a272653SPeter Holmwhile mount | grep "$mntpoint " | grep -q /dev/md; do 678a272653SPeter Holm umount $mntpoint || sleep 1 688a272653SPeter Holmdone 698a272653SPeter Holmmdconfig -d -u $mdstart 708a272653SPeter Holmrm -f /tmp/linger 718a272653SPeter Holmexit 728a272653SPeter HolmEOF 738a272653SPeter Holm#include <sys/mount.h> 748a272653SPeter Holm#include <sys/param.h> 758a272653SPeter Holm#include <sys/stat.h> 768a272653SPeter Holm#include <sys/wait.h> 778a272653SPeter Holm 788a272653SPeter Holm#include <err.h> 798a272653SPeter Holm#include <errno.h> 808a272653SPeter Holm#include <fcntl.h> 818a272653SPeter Holm#include <sched.h> 828a272653SPeter Holm#include <stdio.h> 838a272653SPeter Holm#include <stdlib.h> 848a272653SPeter Holm#include <time.h> 858a272653SPeter Holm#include <unistd.h> 868a272653SPeter Holm 878a272653SPeter Holm#define PARALLEL 10 888a272653SPeter Holm#define TIMEOUT 1200 898a272653SPeter Holmstatic int size = 6552; /* 10 free inodes */ 908a272653SPeter Holm 918a272653SPeter Holmstatic int 928a272653SPeter Holmtest(void) 938a272653SPeter Holm{ 948a272653SPeter Holm int fd, i, j; 958a272653SPeter Holm pid_t pid; 968a272653SPeter Holm char file[128]; 978a272653SPeter Holm 988a272653SPeter Holm for (;;) { 998a272653SPeter Holm if (access("rendezvous", R_OK) == 0) 1008a272653SPeter Holm break; 1018a272653SPeter Holm sched_yield(); 1028a272653SPeter Holm } 1038a272653SPeter Holm pid = getpid(); 1048a272653SPeter Holm for (j = 0; j < size; j++) { 1058a272653SPeter Holm sprintf(file,"p%05d.%05d", pid, j); 1068a272653SPeter Holm if ((fd = creat(file, 0660)) == -1) { 1078a272653SPeter Holm if (errno != EINTR) { 1088a272653SPeter Holm warn("creat(%s). %s:%d", file, __FILE__, __LINE__); 1098a272653SPeter Holm unlink("continue"); 1108a272653SPeter Holm break; 1118a272653SPeter Holm } 1128a272653SPeter Holm } 1138a272653SPeter Holm if (fd != -1 && close(fd) == -1) 1148a272653SPeter Holm err(2, "close(%d)", j); 1158a272653SPeter Holm 1168a272653SPeter Holm } 1178a272653SPeter Holm sleep(3); 1188a272653SPeter Holm 1198a272653SPeter Holm for (i = --j; i >= 0; i--) { 1208a272653SPeter Holm sprintf(file,"p%05d.%05d", pid, i); 1218a272653SPeter Holm if (unlink(file) == -1) 1228a272653SPeter Holm warn("unlink(%s)", file); 1238a272653SPeter Holm 1248a272653SPeter Holm } 1258a272653SPeter Holm return (0); 1268a272653SPeter Holm} 1278a272653SPeter Holm 1288a272653SPeter Holmint 1298a272653SPeter Holmmain(void) 1308a272653SPeter Holm{ 1318a272653SPeter Holm time_t start; 1328a272653SPeter Holm int error = 0, fd, i, j, status; 1338a272653SPeter Holm 1348a272653SPeter Holm umask(0); 1358a272653SPeter Holm if ((fd = open("continue", O_CREAT, 0644)) == -1) 1368a272653SPeter Holm err(1, "open()"); 1378a272653SPeter Holm close(fd); 1388a272653SPeter Holm start = time(NULL); 1398a272653SPeter Holm for (i = 0; i < 100; i++) { 1408a272653SPeter Holm for (j = 0; j < PARALLEL; j++) { 1418a272653SPeter Holm if (fork() == 0) { 1428a272653SPeter Holm test(); 1438a272653SPeter Holm exit(0); 1448a272653SPeter Holm } 1458a272653SPeter Holm } 1468a272653SPeter Holm 1478a272653SPeter Holm if ((fd = open("rendezvous", O_CREAT, 0644)) == -1) 1488a272653SPeter Holm err(1, "open()"); 1498a272653SPeter Holm close(fd); 1508a272653SPeter Holm 1518a272653SPeter Holm for (j = 0; j < PARALLEL; j++) { 1528a272653SPeter Holm wait(&status); 1538a272653SPeter Holm error += status; 1548a272653SPeter Holm } 1558a272653SPeter Holm 1568a272653SPeter Holm unlink("rendezvous"); 1578a272653SPeter Holm if (access("continue", R_OK) == -1) 1588a272653SPeter Holm break; 1598a272653SPeter Holm if (time(NULL) - start > TIMEOUT) { 1608a272653SPeter Holm fprintf(stderr, "FAIL Timeout\n"); 1618a272653SPeter Holm break; 1628a272653SPeter Holm } 1638a272653SPeter Holm } 1648a272653SPeter Holm unlink("continue"); 1658a272653SPeter Holm 1668a272653SPeter Holm return (error != 0); 1678a272653SPeter Holm} 168