xref: /freebsd/tools/test/stress2/misc/linger.sh (revision 608c97bff921c8936eb71f4b1a177625cfa60250)
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