svn commit: r360364 - user/pho/stress2/misc
Peter Holm
pho at FreeBSD.org
Mon Apr 27 05:23:44 UTC 2020
Author: pho
Date: Mon Apr 27 05:23:43 2020
New Revision: 360364
URL: https://svnweb.freebsd.org/changeset/base/360364
Log:
Added more sendfile(2) tests.
Added:
user/pho/stress2/misc/sendfile21.sh (contents, props changed)
user/pho/stress2/misc/sendfile22.sh (contents, props changed)
user/pho/stress2/misc/sendfile23.sh (contents, props changed)
Added: user/pho/stress2/misc/sendfile21.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/sendfile21.sh Mon Apr 27 05:23:43 2020 (r360364)
@@ -0,0 +1,245 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2020 Peter Holm <pho at FreeBSD.org>
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Konstantin Belousov <kib at FreeBSD.org> wrote:
+# 1. create a suffuciently large new file, e.g. of size 100 * PAGE_SIZE
+# 2. fill the file with some data, so no holes exist
+# 3. fsync it
+# 4. mmap the file
+# 5. for each odd-numbered page in the file, do msync(MS_INVALIDATE),
+# but keep even-numbered pages intact
+# 6. unmap the file
+# 7. sendfile the file to a receiver (similar to existing tests in stress2)
+# 8. compare received data with the content of file
+#
+# Without the fixes from r359767 and r359818, the kernel should panic or
+# supply incorrect data to the sendfile peer.
+
+# "Fatal trap 9: general protection fault while in kernel mode
+# (unp_dispose+0x99)" seen.
+# https://people.freebsd.org/~pho/stress/log/sendfile21.txt
+# Not seen on r359843
+
+. ../default.cfg
+[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/sendfile21.c
+mycc -o sendfile21 -Wall -Wextra -O0 -g sendfile21.c || exit 1
+rm -f sendfile21.c
+cd $odir
+
+set -e
+mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
+[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+newfs $newfs_flags -n md$mdstart > /dev/null
+mount /dev/md$mdstart $mntpoint
+set +e
+
+cd $mntpoint
+dd if=/dev/random of=input bs=4k count=100 status=none
+
+(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100 > /dev/null) &
+sleep 30
+n=1
+start=` date +%s`
+while [ $((` date +%s` - start)) -lt 180 ]; do
+ rm -f output
+# The umount is needed to trigger the short read error
+ umount $mntpoint 2>/dev/null # busy umount
+ $dir/sendfile21
+ s=$?
+ cmp -s input output || break
+ [ `stat -f '%z' input` -ne ` stat -f '%z' output` ] && break
+ n=$((n + 1))
+done
+while pgrep -q swap; do
+ pkill swap
+done
+cmp -s input output || { echo "Loop #$n"; ls -l; s=1; }
+wait
+[ -f sendfile21.core -a $s -eq 0 ] &&
+ { ls -l sendfile21.core; mv sendfile21.core $dir; s=1; }
+cd $odir
+
+for i in `jot 6`; do
+ mount | grep -q "on $mntpoint " || break
+ umount $mntpoint && break || sleep 10
+ [ $i -eq 6 ] &&
+ { echo FATAL; fstat -mf $mntpoint; exit 1; }
+done
+mdconfig -d -u $mdstart
+rm -rf $dir/sendfile21
+exit $s
+
+EOF
+#include <sys/param.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define DEBUG 1
+
+static void
+test(void)
+{
+ struct stat st;
+ off_t i, j, k, rd, written, pos;
+ pid_t pid;
+ int error, from, n, status, sv[2], to;
+ char buf[4086], *cp;
+ const char *from_name, *to_name;
+
+ from_name = "input";
+ to_name = "output";
+
+ if ((error = socketpair(AF_UNIX, SOCK_STREAM, 0, sv)) == -1)
+ err(1, "socketpair");
+
+ if ((from = open(from_name, O_RDONLY)) == -1)
+ err(1, "open read %s", from_name);
+
+ if ((error = fstat(from, &st)) == -1)
+ err(1, "stat %s", from_name);
+
+ pid = fork();
+ if (pid == -1)
+ err(1, "fork");
+ else if (pid != 0) {
+ setproctitle("parent");
+ close(sv[1]);
+
+ if ((cp = mmap(NULL, st.st_size, PROT_READ,
+ MAP_PRIVATE, from, 0)) == MAP_FAILED)
+ err(1, "mmap");
+ if (fsync(from) == -1)
+ err(1, "fsync()");
+
+ for (i = 0; i < st.st_size; i += PAGE_SIZE)
+ k = cp[i]; /* touch all pages */
+
+ for (i = 0, j = 0; i < st.st_size; i += PAGE_SIZE, j++) {
+ if (j % 2 == 1) {
+ if (msync(cp + i, PAGE_SIZE, MS_INVALIDATE)
+ == -1)
+ err(1, "msync(), j = %d", (int)j);
+ }
+ }
+ if (munmap(cp, st.st_size) == -1)
+ err(1, "munmap()");
+
+ pos = 0;
+ for (;;) {
+ error = sendfile(from, sv[0], pos, st.st_size - pos,
+ NULL, &written, 0);
+ if (error == -1)
+ err(1, "sendfile");
+ if (written != st.st_size)
+ fprintf(stderr, "sendfile sent %d bytes\n",
+ (int)written);
+ pos += written;
+ if (pos == st.st_size)
+ break;
+ }
+ close(sv[0]);
+ if (pos != st.st_size)
+ fprintf(stderr, "%d written, expected %d\n",
+ (int) pos, (int)st.st_size);
+ if (waitpid(pid, &status, 0) != pid)
+ err(1, "waitpid(%d)", pid);
+ _exit(WEXITSTATUS(status));
+ } else {
+ setproctitle("child");
+ close(from);
+ close(sv[0]);
+
+ if ((to = open(to_name, O_RDWR | O_CREAT, DEFFILEMODE)) ==
+ -1)
+ err(1, "open write %s", to_name);
+
+ rd = 0;
+ for (;;) {
+ n = read(sv[1], buf, sizeof(buf));
+ if (n == -1)
+ err(1, "read");
+ else if (n == 0)
+ break;
+ rd += n;
+ if (write(to, buf, n) != n)
+ err(1, "write()");
+ }
+ close(to);
+ close(sv[1]);
+ if (rd != st.st_size)
+ fprintf(stderr, "Short read %d, expected %d\n",
+ (int)rd, (int)st.st_size);
+ _exit(0);
+ }
+ _exit(0);
+}
+
+int
+main(void)
+{
+ pid_t pid;
+ int e, status;
+
+ e = 0;
+ if ((pid = fork()) == 0)
+ test();
+ if (pid == -1)
+ err(1, "fork()");
+ if (waitpid(pid, &status, 0) == -1)
+ err(1, "waitpid(%d)", pid);
+ if (status != 0) {
+ if (WIFSIGNALED(status))
+ fprintf(stderr,
+ "pid %d exit signal %d\n",
+ pid, WTERMSIG(status));
+ }
+ e += status == 0 ? 0 : 1;
+
+ return (e);
+}
Added: user/pho/stress2/misc/sendfile22.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/sendfile22.sh Mon Apr 27 05:23:43 2020 (r360364)
@@ -0,0 +1,287 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2020 Peter Holm <pho at FreeBSD.org>
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Variation of sendfile21.sh: without the use of socketpair().
+# No problems seen.
+
+. ../default.cfg
+[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/sendfile22.c
+mycc -o sendfile22 -Wall -Wextra -O0 -g sendfile22.c || exit 1
+rm -f sendfile22.c
+cd $odir
+
+set -e
+mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
+[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+newfs_flags=""
+newfs $newfs_flags -n md$mdstart > /dev/null
+mount /dev/md$mdstart $mntpoint
+set +e
+
+cd $mntpoint
+dd if=/dev/random of=input bs=4k count=100 status=none
+
+(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100 > /dev/null) &
+sleep 30
+n=1
+start=` date +%s`
+while [ $((` date +%s` - start)) -lt 180 ]; do
+ rm -f output
+ umount $mntpoint 2>/dev/null # busy umount
+ $dir/sendfile22
+ s=$?
+ cmp -s input output || break
+ [ `stat -f '%z' input` -ne ` stat -f '%z' output` ] && break
+ n=$((n + 1))
+done
+while pgrep -q swap; do
+ pkill swap
+done
+cmp -s input output || { echo "Loop #$n"; ls -l; s=1; }
+wait
+[ -f sendfile22.core -a $s -eq 0 ] &&
+ { ls -l sendfile22.core; mv sendfile22.core $dir; s=1; }
+cd $odir
+
+for i in `jot 6`; do
+ mount | grep -q "on $mntpoint " || break
+ umount $mntpoint && break || sleep 10
+ [ $i -eq 6 ] &&
+ { echo FATAL; fstat -mf $mntpoint; exit 1; }
+done
+mdconfig -d -u $mdstart
+rm -rf $dir/sendfile22
+exit $s
+
+EOF
+#include <sys/param.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+
+#include <netinet/in.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+
+static void
+test(void)
+{
+ struct stat st;
+ struct sockaddr_in inetaddr, inetpeer;
+ struct hostent *hostent;
+ socklen_t len;
+ off_t i, j, rd, written, pos;
+ pid_t pid;
+ int error, from, i1, msgsock, n, on, port, r, status, tcpsock, to;
+ char buf[4086], *cp;
+ const char *from_name, *to_name;
+
+ from_name = "input";
+ to_name = "output";
+ port = 12345;
+
+ if ((from = open(from_name, O_RDONLY)) == -1)
+ err(1, "open read %s", from_name);
+
+ if ((error = fstat(from, &st)) == -1)
+ err(1, "stat %s", from_name);
+
+ pid = fork();
+ if (pid == -1)
+ err(1, "fork");
+ else if (pid != 0) {
+ setproctitle("parent");
+
+ alarm(300);
+ on = 1;
+ for (i1 = 1; i1 < 5; i1++) {
+ 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__);
+
+ hostent = gethostbyname ("localhost");
+ bzero((char *) &inetaddr, sizeof(inetaddr));
+ 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 ((cp = mmap(NULL, st.st_size, PROT_READ,
+ MAP_PRIVATE, from, 0)) == MAP_FAILED)
+ err(1, "mmap");
+ if (fsync(from) == -1)
+ err(1, "fsync()");
+
+ for (i = 0, j = 0; i < st.st_size; i += PAGE_SIZE, j++) {
+ (void)cp[i];
+ if (j % 2 == 1) {
+ if (msync(cp + i, PAGE_SIZE, MS_INVALIDATE)
+ == -1)
+ err(1, "msync(), j = %d", (int)j);
+ }
+ }
+ if (munmap(cp, st.st_size) == -1)
+ err(1, "munmap()");
+
+ pos = 0;
+ for (;;) {
+ error = sendfile(from, tcpsock, pos, st.st_size -
+ pos, NULL, &written, 0);
+ if (error == -1)
+ err(1, "sendfile");
+ if (written != st.st_size)
+ fprintf(stderr, "sendfile sent %d bytes\n",
+ (int)written);
+ pos += written;
+ if (pos == st.st_size)
+ break;
+ }
+ if (pos != st.st_size)
+ fprintf(stderr, "%d written, expected %d\n",
+ (int)pos, (int)st.st_size);
+ close(tcpsock);
+ if (waitpid(pid, &status, 0) != pid)
+ err(1, "waitpid(%d)", pid);
+ } else {
+ setproctitle("child");
+ close(from);
+ alarm(300);
+ 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__);
+
+
+ if ((to = open(to_name, O_RDWR | O_CREAT, DEFFILEMODE)) ==
+ -1)
+ err(1, "open write %s", to_name);
+
+ rd = 0;
+ for (;;) {
+ n = read(msgsock, buf, sizeof(buf));
+ if (n == -1)
+ err(1, "read");
+ else if (n == 0)
+ break;
+ rd += n;
+ if (write(to, buf, n) != n)
+ err(1, "write()");
+ }
+ close(to);
+ if (rd != st.st_size)
+ fprintf(stderr, "Short read %d, expected %d\n",
+ (int)rd, (int)st.st_size);
+ _exit(0);
+ }
+
+ _exit(0);
+}
+
+int
+main(void)
+{
+ pid_t pid;
+ int e, status;
+
+ e = 0;
+ if ((pid = fork()) == 0)
+ test();
+ if (pid == -1)
+ err(1, "fork()");
+ if (waitpid(pid, &status, 0) == -1)
+ err(1, "waitpid(%d)", pid);
+ if (status != 0) {
+ if (WIFSIGNALED(status))
+ fprintf(stderr,
+ "pid %d exit signal %d\n",
+ pid, WTERMSIG(status));
+ }
+ e += status == 0 ? 0 : 1;
+
+ return (e);
+}
Added: user/pho/stress2/misc/sendfile23.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/sendfile23.sh Mon Apr 27 05:23:43 2020 (r360364)
@@ -0,0 +1,209 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2020 Peter Holm <pho at FreeBSD.org>
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# Variation of sendfile21.sh. Short read seen.
+
+. ../default.cfg
+[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/sendfile23.c
+mycc -o sendfile23 -Wall -Wextra -O0 -g sendfile23.c || exit 1
+rm -f sendfile23.c
+cd $odir
+
+set -e
+mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
+[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+newfs $newfs_flags -n md$mdstart > /dev/null
+mount /dev/md$mdstart $mntpoint
+set +e
+
+cd $mntpoint
+dd if=/dev/random of=input bs=4k count=100 status=none
+
+(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100 > /dev/null) &
+sleep 30
+n=1
+start=` date +%s`
+while [ $((` date +%s` - start)) -lt 180 ]; do
+ rm -f output
+# The umount is needed to trigger the short read error
+ umount $mntpoint 2>/dev/null # busy umount
+ $dir/sendfile23
+ s=$?
+ cmp -s input output || break
+ [ `stat -f '%z' input` -ne ` stat -f '%z' output` ] && break
+ n=$((n + 1))
+done
+while pgrep -q swap; do
+ pkill swap
+done
+cmp -s input output || { echo "Loop #$n"; ls -l; s=1; }
+wait
+[ -f sendfile23.core -a $s -eq 0 ] &&
+ { ls -l sendfile23.core; mv sendfile23.core $dir; s=1; }
+cd $odir
+
+for i in `jot 6`; do
+ mount | grep -q "on $mntpoint " || break
+ umount $mntpoint && break || sleep 10
+ [ $i -eq 6 ] &&
+ { echo FATAL; fstat -mf $mntpoint; exit 1; }
+done
+mdconfig -d -u $mdstart
+rm -rf $dir/sendfile23
+exit $s
+
+EOF
+#include <sys/param.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define DEBUG 1
+
+static void
+test(void)
+{
+ struct stat st;
+ off_t rd, written, pos;
+ pid_t pid;
+ int error, from, n, status, sv[2], to;
+ char buf[4086];
+ const char *from_name, *to_name;
+
+ from_name = "input";
+ to_name = "output";
+
+ if ((error = socketpair(AF_UNIX, SOCK_STREAM, 0, sv)) == -1)
+ err(1, "socketpair");
+
+ if ((from = open(from_name, O_RDONLY)) == -1)
+ err(1, "open read %s", from_name);
+
+ if ((error = fstat(from, &st)) == -1)
+ err(1, "stat %s", from_name);
+
+ pid = fork();
+ if (pid == -1)
+ err(1, "fork");
+ else if (pid != 0) {
+ setproctitle("parent");
+ close(sv[1]);
+
+ pos = 0;
+ for (;;) {
+ error = sendfile(from, sv[0], pos, st.st_size - pos,
+ NULL, &written, 0);
+ if (error == -1)
+ err(1, "sendfile");
+ if (written != st.st_size)
+ fprintf(stderr, "sendfile sent %d bytes\n",
+ (int)written);
+ pos += written;
+ if (pos == st.st_size)
+ break;
+ }
+ close(sv[0]);
+ if (pos != st.st_size)
+ fprintf(stderr, "%d written, expected %d\n",
+ (int) pos, (int)st.st_size);
+ if (waitpid(pid, &status, 0) != pid)
+ err(1, "waitpid(%d)", pid);
+ _exit(WEXITSTATUS(status));
+ } else {
+ setproctitle("child");
+ close(from);
+ close(sv[0]);
+
+ if ((to = open(to_name, O_RDWR | O_CREAT, DEFFILEMODE)) ==
+ -1)
+ err(1, "open write %s", to_name);
+
+ rd = 0;
+ for (;;) {
+ n = read(sv[1], buf, sizeof(buf));
+ if (n == -1)
+ err(1, "read");
+ else if (n == 0)
+ break;
+ rd += n;
+ if (write(to, buf, n) != n)
+ err(1, "write()");
+ }
+ close(to);
+ close(sv[1]);
+ if (rd != st.st_size)
+ fprintf(stderr, "Short read %d, expected %d\n",
+ (int)rd, (int)st.st_size);
+ _exit(0);
+ }
+ _exit(0);
+}
+
+int
+main(void)
+{
+ pid_t pid;
+ int e, status;
+
+ e = 0;
+ if ((pid = fork()) == 0)
+ test();
+ if (pid == -1)
+ err(1, "fork()");
+ if (waitpid(pid, &status, 0) == -1)
+ err(1, "waitpid(%d)", pid);
+ if (status != 0) {
+ if (WIFSIGNALED(status))
+ fprintf(stderr,
+ "pid %d exit signal %d\n",
+ pid, WTERMSIG(status));
+ }
+ e += status == 0 ? 0 : 1;
+
+ return (e);
+}
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