1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2020 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# "panic: vm_page_assert_xbusied: page not exclusive busy" seen: 31# https://people.freebsd.org/~pho/stress/log/sendfile20.txt 32# Fixed by r359778 33 34. ../default.cfg 35 36[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 37[ -z "$nfs_export" ] && exit 0 38ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 || 39 exit 0 40 41odir=`pwd` 42cd /tmp 43sed '1,/^EOF/d' < $odir/$0 > sendfile20.c 44mycc -o sendfile20 -Wall sendfile20.c -pthread || exit 1 45rm -f sendfile20.c 46 47(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100) & 48sleep 5 49mount | grep "$mntpoint" | grep -q nfs && umount $mntpoint 50mount -t nfs -o tcp -o retrycnt=3 -o intr,soft -o rw $nfs_export $mntpoint 51 52cd $mntpoint 53parallel=2000 54for i in `jot $parallel`; do 55 size=`jot -r 1 1 $((1024 * 1024))` 56 dd if=/dev/zero of=input.$i bs=$size count=1 status=none 57done 58cd $odir 59while mount | grep "$mntpoint " | grep -q nfs; do 60 umount -f $mntpoint 61done 62sleep 1 63mount -t nfs -o tcp -o retrycnt=3 -o intr,soft -o rw $nfs_export $mntpoint 64spid=$! 65cd $mntpoint 66pids= 67for i in `jot $parallel`; do 68 /tmp/sendfile20 input.$i output.$i 1234$i & 69 pids="$pids $!" 70done 71sleep 30 72while pkill sendfile20; do :; done 73for p in $pids; do 74 wait $p 75done 76for i in `jot $parallel`; do 77# cmp input.$i output.$i || { echo FAIL; ls -l input$i output$i; } 78 rm -f input.$i output.$i 79done 80while pkill swap; do :; done 81wait $spid 82 83cd $odir 84umount $mntpoint 85while mount | grep "$mntpoint " | grep -q nfs; do 86 umount -f $mntpoint 87done 88rm -f /tmp/sendfile20 89exit 0 90EOF 91#include <err.h> 92#include <fcntl.h> 93#include <netdb.h> 94#include <netinet/in.h> 95#include <signal.h> 96#include <stdio.h> 97#include <stdlib.h> 98#include <string.h> 99#include <sys/param.h> 100#include <sys/socket.h> 101#include <sys/stat.h> 102#include <unistd.h> 103 104int port; 105char *inputFile; 106char *outputFile; 107int bufsize = 4096; 108 109static void 110reader(void) { 111 int tcpsock, msgsock; 112 int on; 113 socklen_t len; 114 struct sockaddr_in inetaddr, inetpeer; 115 int n, t, *buf, fd; 116 117 on = 1; 118 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 119 err(1, "socket(), %s:%d", __FILE__, __LINE__); 120 121 if (setsockopt(tcpsock, 122 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 123 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 124 125 inetaddr.sin_family = AF_INET; 126 inetaddr.sin_addr.s_addr = INADDR_ANY; 127 inetaddr.sin_port = htons(port); 128 inetaddr.sin_len = sizeof(inetaddr); 129 130 if (bind(tcpsock, 131 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) 132 err(1, "bind(), %s:%d", __FILE__, __LINE__); 133 134 if (listen(tcpsock, 5) < 0) 135 err(1, "listen(), %s:%d", __FILE__, __LINE__); 136 137 len = sizeof(inetpeer); 138 if ((msgsock = accept(tcpsock, 139 (struct sockaddr *)&inetpeer, &len)) < 0) 140 err(1, "accept(), %s:%d", __FILE__, __LINE__); 141 142 t = 0; 143 if ((buf = malloc(bufsize)) == NULL) 144 err(1, "malloc(%d), %s:%d", bufsize, __FILE__, __LINE__); 145 146 if ((fd = open(outputFile, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1) 147 err(1, "open(%s)", outputFile); 148 149 for (;;) { 150 if ((n = read(msgsock, buf, bufsize)) < 0) 151 err(1, "read(), %s:%d", __FILE__, __LINE__); 152 t += n; 153 if (n == 0) 154 break; 155 156 if ((write(fd, buf, n)) != n) 157 err(1, "write"); 158 } 159 close(msgsock); 160 close(fd); 161 return; 162} 163 164static void 165writer(void) { 166 int tcpsock, on; 167 struct sockaddr_in inetaddr; 168 struct hostent *hostent; 169 struct stat statb; 170 int i, r, fd; 171 off_t off = 0; 172#if 1 173 size_t size; 174#endif 175 176 on = 1; 177 for (i = 1; i < 5; i++) { 178 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 179 err(1, "socket(), %s:%d", __FILE__, __LINE__); 180 181 if (setsockopt(tcpsock, 182 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 183 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 184 185#if 1 /* livelock trigger */ 186 size = getpagesize() -4; 187 if (setsockopt(tcpsock, SOL_SOCKET, SO_SNDBUF, (void *)&size, 188 sizeof(size)) < 0) 189 err(1, "setsockopt(SO_SNDBUF), %s:%d", 190 __FILE__, __LINE__); 191#endif 192 193 hostent = gethostbyname ("localhost"); 194 memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, 195 sizeof (struct in_addr)); 196 197 inetaddr.sin_family = AF_INET; 198 inetaddr.sin_port = htons(port); 199 inetaddr.sin_len = sizeof(inetaddr); 200 201 r = connect(tcpsock, (struct sockaddr *) &inetaddr, 202 sizeof(inetaddr)); 203 if (r == 0) 204 break; 205 sleep(1); 206 close(tcpsock); 207 } 208 if (r < 0) 209 err(1, "connect(), %s:%d", __FILE__, __LINE__); 210 211 if (stat(inputFile, &statb) != 0) 212 err(1, "stat(%s)", inputFile); 213 214 if ((fd = open(inputFile, O_RDONLY)) == -1) 215 err(1, "open(%s)", inputFile); 216 217 if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, SF_NOCACHE) == -1) 218 err(1, "sendfile"); 219 220 return; 221} 222 223int 224main(int argc, char **argv) 225{ 226 pid_t pid; 227 228 if (argc != 4) { 229 fprintf(stderr, "Usage: %s <inputFile outputFile portNumber\n", 230 argv[0]); 231 return (1); 232 } 233 inputFile = argv[1]; 234 outputFile = argv[2]; 235 port = atoi(argv[3]); 236 237 if ((pid = fork()) == 0) { 238 writer(); 239 exit(EXIT_SUCCESS); 240 } else if (pid > 0) { 241 reader(); 242 kill(pid, SIGINT); 243 } else 244 err(1, "fork(), %s:%d", __FILE__, __LINE__); 245 246 return (0); 247} 248