xref: /freebsd/tools/test/stress2/misc/nfs16.sh (revision 3c4ba5f55438f7afd4f4b0b56f88f2bb505fd6a6) 
1#!/bin/sh
2
3#
4# Copyright (c) 2016 EMC Corp.
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26# SUCH DAMAGE.
27#
28
29# Variation of nfs15.sh, using lockd(8).
30# "panic: Failed to register NFS lock locally - error=11" seen:
31# https://people.freebsd.org/~pho/stress/log/kostik897.txt
32
33[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
34
35. ../default.cfg
36
37[ -z "$nfs_export" ] && exit 0
38ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 ||
39    exit 0
40
41here=`pwd`
42cd /tmp
43sed '1,/^EOF/d' < $here/$0 > nfs16.c
44mycc -o nfs16 -Wall -Wextra -O2 -g nfs16.c -lpthread || exit 1
45rm -f nfs16.c
46cd $here
47
48mount | grep "on $mntpoint " | grep nfs > /dev/null && umount $mntpoint
49
50mount -t nfs -o tcp -o retrycnt=3 -o soft -o rw \
51    $nfs_export $mntpoint
52sleep 2
53wd=$mntpoint/nfs16.dir
54rm -rf $wd
55mkdir $wd
56
57(cd $wd; /tmp/nfs16)
58rm -rf $wd
59
60while mount | grep "on $mntpoint " | grep -q nfs; do
61	umount $mntpoint || sleep 1
62done
63
64rm -f /tmp/nfs16
65exit 0
66EOF
67#include <sys/stat.h>
68#include <sys/param.h>
69#include <sys/mman.h>
70#include <sys/wait.h>
71
72#include <machine/atomic.h>
73
74#include <err.h>
75#include <errno.h>
76#include <fcntl.h>
77#include <pthread.h>
78#include <signal.h>
79#include <stdio.h>
80#include <stdlib.h>
81#include <string.h>
82#include <unistd.h>
83
84#define PARALLEL 4
85#define RUNTIME 300
86#define SYNC 0
87
88volatile u_int *share;
89
90static void *
91t1(void *data __unused)
92{
93	atomic_add_int(&share[SYNC], 1);
94	usleep(arc4random() % 8000);
95	raise(SIGABRT);
96
97	return (NULL);
98}
99
100static void *
101t2(void *data __unused)
102{
103	int fd, i, r;
104	char file[80];
105
106	for (i = 0; i < 100; i++) {
107		atomic_add_int(&share[SYNC], 1);
108		snprintf(file, sizeof(file), "file.%06d", i);
109		if ((fd = open(file, O_WRONLY | O_CREAT | O_APPEND, DEFFILEMODE)) == -1)
110			err(1, "open(%s)", file);
111		do {
112			r = lockf(fd, F_LOCK, 0);
113		} while (r == -1 && errno == EDEADLK);
114		if (r == -1)
115			err(1, "lockf(%s, F_LOCK)", file);
116		write(fd, "x", 1);
117		usleep(arc4random() % 1000);
118		if (lseek(fd, 0, SEEK_SET) == -1)
119			err(1, "lseek");
120		if (lockf(fd, F_ULOCK, 0) == -1)
121			err(1, "lockf(%s, F_ULOCK)", file);
122		close(fd);
123	}
124
125	return (NULL);
126}
127
128int
129test(void)
130{
131	pthread_t tid[3];
132	int i, rc;
133
134	for (i = 0; i < 10; i++) {
135		if ((rc = pthread_create(&tid[0], NULL, t2, NULL)) == -1)
136			errc(1, rc, "pthread_create");
137		if ((rc = pthread_create(&tid[1], NULL, t2, NULL)) == -1)
138			errc(1, rc, "pthread_create");
139		if ((rc = pthread_create(&tid[2], NULL, t1, NULL)) == -1)
140			errc(1, rc, "pthread_create");
141
142		if ((rc = pthread_join(tid[0], NULL)) == -1)
143			errc(1, rc, "pthread_join");
144		if ((rc = pthread_join(tid[1], NULL)) == -1)
145			errc(1, rc, "pthread_join");
146		if ((rc = pthread_join(tid[2], NULL)) == -1)
147			errc(1, rc, "pthread_join");
148	}
149
150	_exit(0);
151}
152
153int
154main(void)
155{
156	pid_t pids[PARALLEL];
157	size_t len;
158	time_t start;
159        int i, status;
160
161	len = PAGE_SIZE;
162	if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE,
163	    MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED)
164		err(1, "mmap");
165
166	start = time(NULL);
167	while (time(NULL) - start < RUNTIME) {
168		for (i = 0; i < PARALLEL; i++) {
169			if ((pids[i] = fork()) == 0)
170				test();
171		}
172
173		for(;;) {
174			if (share[SYNC] > 0)
175				atomic_add_int(&share[SYNC], -1);
176			for (i = 0; i < PARALLEL; i++)
177				kill(pids[i], SIGSTOP);
178			usleep(1000);
179			for (i = 0; i < PARALLEL; i++)
180				kill(pids[i], SIGCONT);
181			usleep(100 + arc4random() % 400);
182			if (share[SYNC] == 0) { /* If all procs are done */
183				usleep(500);
184				if (share[SYNC] == 0)
185					break;
186			}
187		}
188
189		for (i = 0; i < PARALLEL; i++) {
190			if (waitpid(pids[i], &status, 0) != pids[i])
191				err(1, "waitpid");
192		}
193	}
194
195	return (0);
196}
197