1#!/bin/sh 2 3# 4# Copyright (c) 2013 Peter Holm <pho@FreeBSD.org> 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 30 31# Regression test: exec returning EIO problem scenario for tmpfs 32 33. ../default.cfg 34 35here=`pwd` 36cd /tmp 37sed '1,/^EOF/d' < $here/$0 > tmpfs9.c 38mycc -o tmpfs9 -Wall -Wextra -O2 tmpfs9.c 39rm -f tmpfs9.c 40cd $here 41 42mount | grep $mntpoint | grep -q tmpfs && umount -f $mntpoint 43mount -t tmpfs tmpfs $mntpoint 44chmod 777 $mntpoint 45 46cp /usr/bin/true $mntpoint 47su $testuser -c "/tmp/tmpfs9 $mntpoint" & 48 49while kill -0 $! 2>/dev/null; do 50 ../testcases/swap/swap -t 2m -i 40 -h 51done 52wait 53 54while mount | grep $mntpoint | grep -q tmpfs; do 55 umount $mntpoint || sleep 1 56done 57rm -f /tmp/tmpfs9 58exit 59EOF 60#include <sys/types.h> 61#include <sys/stat.h> 62#include <sys/wait.h> 63#include <err.h> 64#include <errno.h> 65#include <stdio.h> 66#include <stdlib.h> 67#include <unistd.h> 68 69#define N 5000 70#define PARALLEL 10 71const char path[] = "./true"; 72 73void test(void) 74{ 75 pid_t p; 76 int i; 77 78 for (i = 0; i < N; i++) { 79 if ((p = fork()) == 0) 80 if (execl(path, path, (char *)0) == -1) 81 err(1, "exec(%s)", path); 82 if (p > 0) 83 wait(NULL); 84 } 85 _exit(0); 86} 87 88int 89main(int argc, char **argv) 90{ 91 int i, status; 92 93 if (argc != 2) 94 errx(1, "Usage: %s <path>", argv[0]); 95 if (chdir(argv[1]) == -1) 96 err(1, "chdir(%s)", argv[1]); 97 98 for (i = 0; i < PARALLEL; i++) { 99 if (fork() == 0) 100 test(); 101 } 102 103 for (i = 0; i < PARALLEL; i++) { 104 wait(&status); 105 if (status != 0) 106 return (1); 107 } 108 109 return (0); 110} 111