Index: user/pho/stress2/misc/sem_wait.sh
===================================================================
--- user/pho/stress2/misc/sem_wait.sh	(revision 357723)
+++ user/pho/stress2/misc/sem_wait.sh	(revision 357724)
@@ -1,106 +1,111 @@
 #!/bin/sh
 
 #
 # SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 #
 # Copyright (c) 2019 Dell EMC Isilon
 #
 # 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.
 #
 # $FreeBSD$
 #
 
 # "panic: vm_page_free_prep: freeing mapped page 0x657936c" seen.
 # https://people.freebsd.org/~pho/stress/log/sem_wait.txt
 # Fixed by r350005
 
 . ../default.cfg
 
 cat > /tmp/sem_wait.c <<EOF
 #include <sys/param.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
 
 #include <err.h>
 #include <pthread.h>
 #include <semaphore.h>
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
 
 static sem_t *semaphore;
 
 static void *
 test(void) {
 
+	setproctitle("%s", __func__);
+	alarm(300);
 	for (;;) {
 		if (sem_wait(semaphore) == -1)
 			err(1, "sem_wait");
 		if (sem_post(semaphore) == -1)
 			err(1, "sem_post");
 	}
 }
 
 int
 main(void) {
 	pid_t pid;
 	size_t len;
 	time_t start;
 
+	setproctitle("%s", __func__);
+	alarm(300);
 	len = PAGE_SIZE;
 	if ((semaphore = mmap(NULL, len, PROT_READ | PROT_WRITE,
 	    MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED)
 		err(1, "mmap");
 
 	// initialize semaphore and set value to 1
 	if (sem_init(semaphore, 1, 1) == -1)
 		err(1, "sem_init");
 
 	if ((pid = fork()) == 0)
 		test();
 	if (pid == -1)
 		err(1, "fork()");
 
 	usleep(50);
 	alarm(300);
 	start = time(NULL);
 	while (time(NULL) - start < 60) {
 		if (sem_wait(semaphore) == -1)
 			err(1, "sem_wait");
 		if (sem_post(semaphore) == -1)
 			err(1, "sem_post");
 	}
 	kill(pid, SIGHUP);
 	if (waitpid(pid, NULL, 0) != pid)
 		err(1, "waitpid()");
 
 	return (0);
 }
 EOF
 mycc -o /tmp/sem_wait -Wall -Wextra -O2 /tmp/sem_wait.c || exit 1
-/tmp/sem_wait; s=$?
+timeout 6m /tmp/sem_wait; s=$?
+[ $s -eq 124 ] && echo "Timed out"
 rm -f /tmp/sem_wait /tmp/sem_wait.c
 exit $s