svn commit: r199142 - projects/stress2/misc
Peter Holm
pho at FreeBSD.org
Tue Nov 10 16:47:49 UTC 2009
Author: pho
Date: Tue Nov 10 16:47:48 2009
New Revision: 199142
URL: http://svn.freebsd.org/changeset/base/199142
Log:
Regression test scenario for sendfile livelock.
Added:
projects/stress2/misc/sendfile.sh (contents, props changed)
Added: projects/stress2/misc/sendfile.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/stress2/misc/sendfile.sh Tue Nov 10 16:47:48 2009 (r199142)
@@ -0,0 +1,215 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+# Test scenario for sendfile livelock seen on 7.2-STABLE for non SMP
+
+# Scenario by kib@
+
+. ../default.cfg
+
+odir=`pwd`
+
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > sendfile.c
+cc -o sendfile -Wall sendfile.c -pthread
+rm -f sendfile.c
+[ -d "$RUNDIR" ] || mkdir -p $RUNDIR
+cd $RUNDIR
+
+in=/tmp/inputFile
+out=/tmp/outputFile
+
+for i in 1 2 3 4 8 16 1k 2k 3k 4k 5k 1m 2m 3m 4m 5m ; do
+ rm -f $in $out
+ dd if=/dev/random of=$in bs=$i count=1 2>&1 | \
+ egrep -v "records|transferred"
+ /tmp/sendfile $in $out 12345
+ cmp $in $out || ls -l $in $out
+ rm -f $in $out
+done
+rm -f /tmp/sendfile
+exit
+EOF
+#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 <sys/param.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+int port;
+char *inputFile;
+char *outputFile;
+int bufsize = 4096;
+
+static void
+reader(void) {
+ int tcpsock, msgsock;
+ int on;
+ socklen_t len;
+ struct sockaddr_in inetaddr, inetpeer;
+ int n, t, *buf, fd;
+
+ 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) {
+ int tcpsock, on;
+ struct sockaddr_in inetaddr;
+ struct hostent *hostent;
+ struct stat statb;
+ int i, r, fd;
+ off_t off = 0;
+#if 1
+ size_t size;
+#endif
+
+ 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__);
+
+#if 1 /* livelock trigger */
+ size = getpagesize() -4;
+ if (setsockopt(tcpsock,
+ SOL_SOCKET, SO_SNDBUF, (void *)&size, sizeof(size)) < 0)
+ err(1, "setsockopt(SO_SNDBUF), %s:%d", __FILE__, __LINE__);
+#endif
+
+ 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_RDONLY)) == -1)
+ err(1, "open(%s)", inputFile);
+
+ if (sendfile(fd, tcpsock, 0, statb.st_size, NULL, &off, 0) == -1)
+ err(1, "sendfile");
+
+ return;
+}
+
+int
+main(int argc, char **argv)
+{
+ pid_t pid;
+
+ if (argc != 4) {
+ fprintf(stderr, "Usage: %s <inputFile outputFile portNumber\n", argv[0]);
+ return (1);
+ }
+ 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);
+ } else
+ err(1, "fork(), %s:%d", __FILE__, __LINE__);
+
+ return (0);
+}
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