Date: Tue, 3 Oct 2017 07:00:26 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r324230 - user/pho/stress2/misc Message-ID: <201710030700.v9370Q8D085778@repo.freebsd.org>
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Author: pho Date: Tue Oct 3 07:00:26 2017 New Revision: 324230 URL: https://svnweb.freebsd.org/changeset/base/324230 Log: Added a sendfile(2) test scenario. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/sendfile12.sh (contents, props changed) Added: user/pho/stress2/misc/sendfile12.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/sendfile12.sh Tue Oct 3 07:00:26 2017 (r324230) @@ -0,0 +1,243 @@ +#!/bin/sh + +# +# Copyright (c) 2017 Dell EMC Isilon +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ +# + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +# Test scenario suggestion by alc@ + +# sendfile(2) using SF_NOCACHE and a mmap'ed file with touched pages. +# "panic: vm_page_free_toq: freeing mapped page 0xc49e53bc" seen: +# https://people.freebsd.org/~pho/stress/log/sendfile12.txt + +. ../default.cfg + +odir=`pwd` +cd /tmp +sed '1,/^EOF/d' < $odir/$0 > sendfile12.c +mycc -o sendfile12 -Wall sendfile12.c -pthread || exit 1 +rm -f sendfile12.c + +set -e +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 1g -u $mdstart +newfs $newfs_flags /dev/md$mdstart > /dev/null + +mount /dev/md${mdstart} $mntpoint +chmod 777 $mntpoint +set +e + +cd $mntpoint +dd if=/dev/zero of=file bs=1m count=512 +(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -h -l 100) & +sleep 5 +/tmp/sendfile12 file output 12345; s=$? +cd $odir +while pkill swap; do + sleep 1 +done +wait + +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 +done +checkfs /dev/md${mdstart} || s=$? +mdconfig -d -u $mdstart +rm -f /tmp/sendfile12 +exit $s +EOF +#include <sys/param.h> +#include <sys/mman.h> +#include <sys/socket.h> +#include <sys/stat.h> + +#include <err.h> +#include <fcntl.h> +#include <netdb.h> +#include <netinet/in.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#define BUFSIZE 8192 + +static int port; +static char *inputFile; +static char *outputFile; + +static void +reader(void) { + struct sockaddr_in inetaddr, inetpeer; + socklen_t len; + int tcpsock, msgsock; + int *buf, fd, n, on, t; + + on = 1; + if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) + err(1, "socket(), %s:%d", __FILE__, __LINE__); + + if (setsockopt(tcpsock, + SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) + err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); + + inetaddr.sin_family = AF_INET; + inetaddr.sin_addr.s_addr = INADDR_ANY; + inetaddr.sin_port = htons(port); + inetaddr.sin_len = sizeof(inetaddr); + + if (bind(tcpsock, + (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) + err(1, "bind(), %s:%d", __FILE__, __LINE__); + + if (listen(tcpsock, 5) < 0) + err(1, "listen(), %s:%d", __FILE__, __LINE__); + + len = sizeof(inetpeer); + if ((msgsock = accept(tcpsock, + (struct sockaddr *)&inetpeer, &len)) < 0) + err(1, "accept(), %s:%d", __FILE__, __LINE__); + + t = 0; + if ((buf = malloc(BUFSIZE)) == NULL) + err(1, "malloc(%d), %s:%d", BUFSIZE, __FILE__, __LINE__); + + if ((fd = open(outputFile, O_RDWR | O_CREAT | O_TRUNC, 0640)) == + -1) + err(1, "open(%s)", outputFile); + + for (;;) { + if ((n = read(msgsock, buf, BUFSIZE)) < 0) + err(1, "read(), %s:%d", __FILE__, __LINE__); + t += n; + if (n == 0) break; + + if ((write(fd, buf, n)) != n) + err(1, "write"); + } + close(msgsock); + close(fd); + return; +} + +static void +writer(void) { + struct sockaddr_in inetaddr; + struct hostent *hostent; + struct stat statb; + off_t off = 0; + size_t size; + int i, fd, on, r, tcpsock; + char *cp; + + on = 1; + for (i = 1; i < 5; i++) { + if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) + err(1, "socket(), %s:%d", __FILE__, __LINE__); + + if (setsockopt(tcpsock, + SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) + err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); + + size = getpagesize() -4; + if (setsockopt(tcpsock, + SOL_SOCKET, SO_SNDBUF, (void *)&size, sizeof(size)) < 0) + err(1, "setsockopt(SO_SNDBUF), %s:%d", __FILE__, + __LINE__); + + hostent = gethostbyname ("localhost"); + memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, + sizeof (struct in_addr)); + + inetaddr.sin_family = AF_INET; + inetaddr.sin_addr.s_addr = INADDR_ANY; + inetaddr.sin_port = htons(port); + inetaddr.sin_len = sizeof(inetaddr); + + r = connect(tcpsock, (struct sockaddr *) &inetaddr, + sizeof(inetaddr)); + if (r == 0) + break; + sleep(1); + close(tcpsock); + } + if (r < 0) + err(1, "connect(), %s:%d", __FILE__, __LINE__); + + if (stat(inputFile, &statb) != 0) + err(1, "stat(%s)", inputFile); + + if ((fd = open(inputFile, O_RDWR)) == -1) + err(1, "open(%s)", inputFile); + + if ((cp = mmap(NULL, statb.st_size, PROT_READ | PROT_WRITE, + MAP_SHARED, fd, 0)) == MAP_FAILED) + err(1, "mmap"); + cp[0] = 1; + + if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, SF_NOCACHE) + == -1) + err(1, "sendfile"); + + return; +} + +int +main(int argc, char **argv) +{ + pid_t pid; + int e, s; + + if (argc != 4) { + fprintf(stderr, + "Usage: %s <inputFile outputFile portNumber\n", argv[0]); + return (1); + } + e = 0; + inputFile = argv[1]; + outputFile = argv[2]; + port = atoi(argv[3]); + + if ((pid = fork()) == 0) { + writer(); + exit(EXIT_SUCCESS); + + } else if (pid > 0) { + reader(); + kill(pid, SIGINT); + waitpid(pid, &s, 0); + if (s != 0) + e = 1; + } else + err(1, "fork(), %s:%d", __FILE__, __LINE__); + + return (e); +}
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