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diff --git a/tools/test/stress2/misc/posix_fadvise2.sh b/tools/test/stress2/misc/posix_fadvise2.sh
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+#!/bin/sh
+
+#
+# Copyright (c) 2015 EMC Corp.
+# 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.
+#
+
+# Looping thread seen:
+# https://people.freebsd.org/~pho/stress/log/kostik850.txt
+# Fixed by r292326.
+
+. ../default.cfg
+[ -f /usr/libexec/sendmail/sendmail ] || exit 0
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > posix_fadvise2.c
+mycc -o posix_fadvise2 -Wall -Wextra -O2 posix_fadvise2.c || exit 1
+rm -f posix_fadvise2.c
+
+/tmp/posix_fadvise2
+
+rm -f /tmp/posix_fadvise2 /tmp/posix_fadvise2
+exit
+EOF
+#include <sys/param.h>
+
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+char *file[2] = {
+ "/usr/libexec/sendmail/sendmail",
+ "/tmp/posix_fadvise2"};
+
+int
+main(void)
+{
+ int fd, i, r;
+
+ for (i = 0; i < 2; i++) {
+ fprintf(stderr, "Testing with %s.\n", file[i]);
+ if ((fd = open(file[i], O_RDONLY)) == -1)
+ err(1, "open(%s)", file[i]);
+
+/* Arguments from syscall4.sh test as seen in kostik850.txt */
+ if ((r = posix_fadvise(fd, 0x1e9cda7a9ada8319,
+ 0x1e9d1deee0401abd, POSIX_FADV_DONTNEED)) != 0)
+ errc(1, r, "posix_fadvise(%s)", file[i]);
+
+ close(fd);
+ }
+
+ return(0);
+}