248 lines
6.2 KiB
Bash
Executable File
248 lines
6.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2020 Peter Holm <pho@FreeBSD.org>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# "panic: vm_page_assert_xbusied: page not exclusive busy" seen:
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# https://people.freebsd.org/~pho/stress/log/sendfile20.txt
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# Fixed by r359778
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. ../default.cfg
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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[ -z "$nfs_export" ] && exit 0
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ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 ||
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exit 0
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odir=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $odir/$0 > sendfile20.c
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mycc -o sendfile20 -Wall sendfile20.c -pthread || exit 1
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rm -f sendfile20.c
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(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100) &
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sleep 5
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mount | grep "$mntpoint" | grep -q nfs && umount $mntpoint
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mount -t nfs -o tcp -o retrycnt=3 -o intr,soft -o rw $nfs_export $mntpoint
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cd $mntpoint
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parallel=2000
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for i in `jot $parallel`; do
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size=`jot -r 1 1 $((1024 * 1024))`
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dd if=/dev/zero of=input.$i bs=$size count=1 status=none
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done
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cd $odir
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while mount | grep "$mntpoint " | grep -q nfs; do
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umount -f $mntpoint
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done
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sleep 1
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mount -t nfs -o tcp -o retrycnt=3 -o intr,soft -o rw $nfs_export $mntpoint
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spid=$!
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cd $mntpoint
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pids=
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for i in `jot $parallel`; do
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/tmp/sendfile20 input.$i output.$i 1234$i &
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pids="$pids $!"
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done
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sleep 30
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while pkill sendfile20; do :; done
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for p in $pids; do
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wait $p
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done
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for i in `jot $parallel`; do
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# cmp input.$i output.$i || { echo FAIL; ls -l input$i output$i; }
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rm -f input.$i output.$i
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done
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while pkill swap; do :; done
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wait $spid
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cd $odir
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umount $mntpoint
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while mount | grep "$mntpoint " | grep -q nfs; do
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umount -f $mntpoint
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done
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rm -f /tmp/sendfile20
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exit 0
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EOF
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#include <err.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <unistd.h>
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int port;
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char *inputFile;
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char *outputFile;
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int bufsize = 4096;
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static void
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reader(void) {
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int tcpsock, msgsock;
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int on;
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socklen_t len;
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struct sockaddr_in inetaddr, inetpeer;
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int n, t, *buf, fd;
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on = 1;
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if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
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err(1, "socket(), %s:%d", __FILE__, __LINE__);
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if (setsockopt(tcpsock,
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SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
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err(1, "setsockopt(), %s:%d", __FILE__, __LINE__);
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inetaddr.sin_family = AF_INET;
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inetaddr.sin_addr.s_addr = INADDR_ANY;
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inetaddr.sin_port = htons(port);
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inetaddr.sin_len = sizeof(inetaddr);
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if (bind(tcpsock,
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(struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0)
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err(1, "bind(), %s:%d", __FILE__, __LINE__);
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if (listen(tcpsock, 5) < 0)
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err(1, "listen(), %s:%d", __FILE__, __LINE__);
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len = sizeof(inetpeer);
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if ((msgsock = accept(tcpsock,
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(struct sockaddr *)&inetpeer, &len)) < 0)
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err(1, "accept(), %s:%d", __FILE__, __LINE__);
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t = 0;
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if ((buf = malloc(bufsize)) == NULL)
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err(1, "malloc(%d), %s:%d", bufsize, __FILE__, __LINE__);
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if ((fd = open(outputFile, O_RDWR | O_CREAT | O_TRUNC, 0640)) == -1)
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err(1, "open(%s)", outputFile);
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for (;;) {
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if ((n = read(msgsock, buf, bufsize)) < 0)
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err(1, "read(), %s:%d", __FILE__, __LINE__);
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t += n;
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if (n == 0)
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break;
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if ((write(fd, buf, n)) != n)
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err(1, "write");
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}
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close(msgsock);
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close(fd);
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return;
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}
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static void
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writer(void) {
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int tcpsock, on;
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struct sockaddr_in inetaddr;
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struct hostent *hostent;
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struct stat statb;
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int i, r, fd;
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off_t off = 0;
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#if 1
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size_t size;
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#endif
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on = 1;
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for (i = 1; i < 5; i++) {
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if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0)
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err(1, "socket(), %s:%d", __FILE__, __LINE__);
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if (setsockopt(tcpsock,
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SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
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err(1, "setsockopt(), %s:%d", __FILE__, __LINE__);
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#if 1 /* livelock trigger */
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size = getpagesize() -4;
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if (setsockopt(tcpsock, SOL_SOCKET, SO_SNDBUF, (void *)&size,
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sizeof(size)) < 0)
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err(1, "setsockopt(SO_SNDBUF), %s:%d",
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__FILE__, __LINE__);
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#endif
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hostent = gethostbyname ("localhost");
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memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr,
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sizeof (struct in_addr));
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inetaddr.sin_family = AF_INET;
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inetaddr.sin_port = htons(port);
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inetaddr.sin_len = sizeof(inetaddr);
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r = connect(tcpsock, (struct sockaddr *) &inetaddr,
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sizeof(inetaddr));
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if (r == 0)
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break;
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sleep(1);
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close(tcpsock);
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}
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if (r < 0)
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err(1, "connect(), %s:%d", __FILE__, __LINE__);
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if (stat(inputFile, &statb) != 0)
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err(1, "stat(%s)", inputFile);
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if ((fd = open(inputFile, O_RDONLY)) == -1)
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err(1, "open(%s)", inputFile);
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if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, SF_NOCACHE) == -1)
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err(1, "sendfile");
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return;
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}
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int
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main(int argc, char **argv)
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{
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pid_t pid;
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if (argc != 4) {
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fprintf(stderr, "Usage: %s <inputFile outputFile portNumber\n",
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argv[0]);
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return (1);
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}
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inputFile = argv[1];
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outputFile = argv[2];
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port = atoi(argv[3]);
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if ((pid = fork()) == 0) {
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writer();
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exit(EXIT_SUCCESS);
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} else if (pid > 0) {
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reader();
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kill(pid, SIGINT);
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} else
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err(1, "fork(), %s:%d", __FILE__, __LINE__);
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return (0);
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}
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