1#!/bin/sh 2 3# 4# Copyright (c) 2011 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# Truncate scenario for suj. 32# "panic: worklist_insert: 0xc8bc5b00 freework(0x8009) already on list" 33# seen. 34 35. ../default.cfg 36 37here=`pwd` 38cd /tmp 39sed '1,/^EOF/d' < $here/$0 > suj17.c 40mycc -o suj17 -Wall -Wextra -O2 suj17.c 41rm -f suj17.c 42cd $here 43 44mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 45mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 46 47mdconfig -a -t swap -s 2g -u $mdstart || exit 1 48[ $# -eq 1 ] && opt="$1" 49[ $# -eq 0 ] && opt="-j" 50echo "newfs $opt md$mdstart" 51newfs $opt md$mdstart > /dev/null 52mount /dev/md$mdstart $mntpoint 53chmod 777 $mntpoint 54 55su $testuser -c "cd $mntpoint; /tmp/suj17" 56s=$? 57 58while mount | grep $mntpoint | grep -q /dev/md; do 59 umount $mntpoint || sleep 1 60done 61checkfs /dev/md$mdstart || s=$? 62mdconfig -d -u $mdstart 63rm -f /tmp/suj17 64exit $s 65EOF 66#include <fcntl.h> 67#include <err.h> 68#include <sched.h> 69#include <stdio.h> 70#include <stdlib.h> 71#include <unistd.h> 72#include <sys/wait.h> 73 74#define SIZ (1024 * 1024 - 1) 75char buf[SIZ]; 76 77void 78test() 79{ 80 int fd, i; 81 char name[128]; 82 off_t len = 104857600LL; /* 100 Mb */ 83 off_t pos; 84 85 sprintf(name, "%06d", getpid()); 86 if ((fd = open(name, O_WRONLY | O_CREAT, 0666)) == -1) 87 err(1, "open(%s)", name); 88 for (i = 0; i < 100; i++) { 89 if (write(fd, buf, sizeof(buf)) != sizeof(buf)) 90 err(1, "write"); 91 } 92 93 for (;;) { 94 if (access("rendezvous", R_OK) == 0) 95 break; 96 sched_yield(); 97 } 98 99 srand48(getpid()); 100 for (i = 0; i < 50000; i++) { 101 pos = lrand48() % (len - sizeof(buf)); 102 if (ftruncate(fd, pos) == -1) 103 err(1, "ftruncate"); 104 pos = lrand48() % (len - sizeof(buf)); 105 if (lseek(fd, pos, SEEK_SET) == -1) 106 err(1, "lseek"); 107 if (write(fd, buf, sizeof(buf)) != sizeof(buf)) 108 err(1, "write"); 109 } 110 close(fd); 111 unlink(name); 112 _exit(0); 113} 114 115int 116main() 117{ 118 int fd, i, j, status; 119 120 for (i = 0; i < 1; i++) { 121 for (j = 0; j < 6; j++) { 122 if (fork() == 0) 123 test(); 124 } 125 if ((fd = open("rendezvous", O_CREAT, 0644)) == -1) 126 err(1, "open()"); 127 close(fd); 128 129 for (j = 0; j < 6; j++) 130 wait(&status); 131 unlink("rendezvous"); 132 } 133 134 return (0); 135} 136