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# Variation of linger.sh, with emphasis on blocks. 328a272653SPeter Holm 338a272653SPeter Holm. ../default.cfg 348a272653SPeter Holm 358a272653SPeter Holmhere=`pwd` 368a272653SPeter Holmcd /tmp 378a272653SPeter Holmsed '1,/^EOF/d' < $here/$0 > linger2.c 388a272653SPeter Holmmycc -o linger2 -Wall -O2 linger2.c 398a272653SPeter Holmrm -f linger2.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 Holmnewfs $opt -n md$mdstart > /dev/null 48*608c97bfSPeter Holmmount /dev/md$mdstart $mntpoint 498a272653SPeter Holmchmod 777 $mntpoint 508a272653SPeter Holmset `df -i $mntpoint | tail -1 | awk '{print $3, $6}'` 518a272653SPeter Holm 528a272653SPeter Holmmin=24 538a272653SPeter Holm[ -r $mntpoint/.sujournal ] && { size=88; min=8232; } 548a272653SPeter Holmif ! su $testuser -c "cd $mntpoint; /tmp/linger2 $size 2>/dev/null"; then 558a272653SPeter Holm r=`df -i $mntpoint | head -1` 568a272653SPeter Holm echo " $r" 578a272653SPeter Holm for i in `jot 12`; do 588a272653SPeter Holm r=`df -ik $mntpoint | tail -1` 598a272653SPeter Holm [ "$r" != "$old" ] && echo "`date '+%T'` $r" 608a272653SPeter Holm old=$r 618a272653SPeter Holm [ `echo $r | awk '{print $3}'` -le $min ] && break 628a272653SPeter Holm sleep 10 638a272653SPeter Holm done 648a272653SPeter Holmfi 658a272653SPeter Holm 668a272653SPeter Holmwhile mount | grep "$mntpoint " | grep -q /dev/md; do 678a272653SPeter Holm umount $mntpoint || sleep 1 688a272653SPeter Holmdone 698a272653SPeter Holmmdconfig -d -u $mdstart 708a272653SPeter Holmrm -f /tmp/linger2 718a272653SPeter Holmexit 728a272653SPeter HolmEOF 738a272653SPeter Holm#include <err.h> 748a272653SPeter Holm#include <errno.h> 758a272653SPeter Holm#include <fcntl.h> 768a272653SPeter Holm#include <sched.h> 778a272653SPeter Holm#include <stdio.h> 788a272653SPeter Holm#include <stdlib.h> 798a272653SPeter Holm#include <string.h> 808a272653SPeter Holm#include <sys/param.h> 818a272653SPeter Holm#include <sys/stat.h> 828a272653SPeter Holm#include <sys/wait.h> 838a272653SPeter Holm#include <unistd.h> 848a272653SPeter Holm 858a272653SPeter Holm#define PARALLEL 10 868a272653SPeter Holmstatic int size = 89; 878a272653SPeter Holm 888a272653SPeter Holmint 898a272653SPeter Holmtest(void) 908a272653SPeter Holm{ 918a272653SPeter Holm int error = 0, fd, i, j; 928a272653SPeter Holm pid_t pid; 938a272653SPeter Holm char file[128]; 948a272653SPeter Holm char *buf; 958a272653SPeter Holm 968a272653SPeter Holm for (;;) { 978a272653SPeter Holm if (access("rendezvous", R_OK) == 0) 988a272653SPeter Holm break; 998a272653SPeter Holm sched_yield(); 1008a272653SPeter Holm } 1018a272653SPeter Holm pid = getpid(); 1028a272653SPeter Holm buf = malloc(1024 * 1024); 1038a272653SPeter Holm for (j = 0; j < size; j++) { 1048a272653SPeter Holm sprintf(file,"p%05d.%05d", pid, j); 1058a272653SPeter Holm if ((fd = creat(file, 0660)) == -1) { 1068a272653SPeter Holm if (errno != EINTR) { 1078a272653SPeter Holm warn("creat(%s). %s:%d", file, __FILE__, __LINE__); 1088a272653SPeter Holm unlink("continue"); 1098a272653SPeter Holm error = 1; 1108a272653SPeter Holm break; 1118a272653SPeter Holm } 1128a272653SPeter Holm } 1138a272653SPeter Holm if (write(fd, buf, 1024 * 1024) != 1024 * 1024) { 1148a272653SPeter Holm warn("write()"); 1158a272653SPeter Holm unlink("continue"); 1168a272653SPeter Holm error = 1; 1178a272653SPeter Holm break; 1188a272653SPeter Holm } 1198a272653SPeter Holm if (fd != -1 && close(fd) == -1) 1208a272653SPeter Holm err(2, "close(%d)", j); 1218a272653SPeter Holm 1228a272653SPeter Holm } 1238a272653SPeter Holm sleep(3); 1248a272653SPeter Holm 1258a272653SPeter Holm if (error == 0) 1268a272653SPeter Holm j--; 1278a272653SPeter Holm for (i = j; i >= 0; i--) { 1288a272653SPeter Holm sprintf(file,"p%05d.%05d", pid, i); 1298a272653SPeter Holm if (unlink(file) == -1) 1308a272653SPeter Holm warn("unlink(%s)", file); 1318a272653SPeter Holm 1328a272653SPeter Holm } 1338a272653SPeter Holm return (error); 1348a272653SPeter Holm} 1358a272653SPeter Holm 1368a272653SPeter Holmint 1378a272653SPeter Holmmain(int argc, char **argv) 1388a272653SPeter Holm{ 1398a272653SPeter Holm int error = 0, fd, i, j, status; 1408a272653SPeter Holm 1418a272653SPeter Holm if (argc == 2) 1428a272653SPeter Holm size = atoi(argv[1]); 1438a272653SPeter Holm 1448a272653SPeter Holm umask(0); 1458a272653SPeter Holm if ((fd = open("continue", O_CREAT, 0644)) == -1) 1468a272653SPeter Holm err(1, "open()"); 1478a272653SPeter Holm close(fd); 1488a272653SPeter Holm for (i = 0; i < 200; i++) { 1498a272653SPeter Holm for (j = 0; j < PARALLEL; j++) { 1508a272653SPeter Holm if (fork() == 0) 1518a272653SPeter Holm exit(test()); 1528a272653SPeter Holm } 1538a272653SPeter Holm 1548a272653SPeter Holm if ((fd = open("rendezvous", O_CREAT, 0644)) == -1) 1558a272653SPeter Holm err(1, "open()"); 1568a272653SPeter Holm close(fd); 1578a272653SPeter Holm 1588a272653SPeter Holm for (j = 0; j < PARALLEL; j++) { 1598a272653SPeter Holm wait(&status); 1608a272653SPeter Holm error += status; 1618a272653SPeter Holm } 1628a272653SPeter Holm 1638a272653SPeter Holm unlink("rendezvous"); 1648a272653SPeter Holm if (access("continue", R_OK) == -1) { 1658a272653SPeter Holm break; 1668a272653SPeter Holm } 1678a272653SPeter Holm } 1688a272653SPeter Holm unlink("continue"); 1698a272653SPeter Holm 1708a272653SPeter Holm return (error != 0); 1718a272653SPeter Holm} 172