#!/bin/sh
#
# Copyright (c) 2014 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.
#
# Copy of mmap10.sh with msync() added.
# "panic: vm_map_protect: inaccessible wired map entry" seen:
# http://people.freebsd.org/~pho/stress/log/mmap11.txt
# No problems seen after r271681.
# http://people.freebsd.org/~pho/stress/log/kostik730.txt, Fixed in r273784
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
here=`pwd`
cd /tmp
sed '1,/^EOF/d' < $here/$0 > mmap11.c
mycc -o mmap11 -Wall -Wextra -O2 -g mmap11.c -lpthread || exit 1
rm -f mmap11.c
daemon sh -c "(cd $here/../testcases/swap; ./swap -t 2m -i 20 -k)"
sleep `jot -r 1 0 9`
for i in `jot 2`; do
/tmp/mmap11 &
done
sleep 300
while pgrep -q mmap11; do
pkill -9 mmap11
sleep 2
done
wait
killall -q swap
rm -f /tmp/mmap11 /tmp/mmap11.core
exit 0
EOF
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <pthread_np.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define LOOPS 2
#define MMSIZE (192 * 1024 * 1024)
#define N (128 * 1024 / (int)sizeof(u_int32_t))
#define PARALLEL 50
void *p;
u_int32_t r[N];
unsigned long
makearg(void)
{
unsigned long val;
unsigned int i;
val = arc4random();
i = arc4random() % 100;
if (i < 20)
val = val & 0xff;
if (i >= 20 && i < 40)
val = val & 0xffff;
if (i >= 40 && i < 60)
val = (unsigned long)(r) | (val & 0xffff);
#if defined(__LP64__)
if (i >= 60) {
val = (val << 32) | arc4random();
if (i > 80)
val = val & 0x00007fffffffffffUL;
}
#endif
return(val);
}
void *
makeptr(void)
{
unsigned long val;
if (p != MAP_FAILED && p != NULL)
val = (unsigned long)p + arc4random();
else
val = makearg();
val = trunc_page(val);
return ((void *)val);
}
void *
tmmap(void *arg __unused)
{
size_t len;
int i, j, fd;
pthread_set_name_np(pthread_self(), __func__);
len = MMSIZE;
for (i = 0, j = 0; i < 100; i++) {
if ((fd = open("/dev/zero", O_RDWR)) == -1)
err(1,"open()");
if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_PRIVATE,
fd, 0)) != MAP_FAILED) {
usleep(100);
munmap(p, len);
j++;
}
if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON,
-1, 0)) != MAP_FAILED) {
usleep(100);
munmap(p, len);
j++;
}
close(fd);
}
if (j == 0)
fprintf(stderr, "FAIL: all mmap(2) calls failed.\n");
return (NULL);
}
void *
tmlock(void *arg __unused)
{
size_t len;
int i, n;
pthread_set_name_np(pthread_self(), __func__);
n = 0;
for (i = 0; i < 200; i++) {
len = trunc_page(makearg());
if (mlock(makeptr(), len) == 0)
n++;
len = trunc_page(makearg());
if (arc4random() % 100 < 50)
if (munlock(makeptr(), len) == 0)
n++;
}
if (n < 10)
fprintf(stderr, "Note: tmlock() only succeeded %d times.\n",
n);
return (NULL);
}
void *
tmprotect(void *arg __unused)
{
size_t len;
void *addr;
int i, n, prot;
pthread_set_name_np(pthread_self(), __func__);
n = 0;
for (i = 0; i < 200; i++) {
addr = makeptr();
len = trunc_page(makearg());
prot = makearg();
if (mprotect(addr, len, prot) == 0)
n++;
usleep(1000);
}
if (n < 10)
fprintf(stderr, "Note: tmprotect() only succeeded %d times.\n",
n);
return (NULL);
}
void *
tmlockall(void *arg __unused)
{
int flags, i, n;
pthread_set_name_np(pthread_self(), __func__);
n = 0;
for (i = 0; i < 200; i++) {
flags = makearg();
if (mlockall(flags) == 0)
n++;
usleep(100);
munlockall();
usleep(1000);
}
if (n < 10)
fprintf(stderr, "Note: tmlockall() only succeeded %d times.\n",
n);
return (NULL);
}
void *
tmsync(void *arg __unused)
{
size_t len;
void *addr;
int flags, i, n;
pthread_set_name_np(pthread_self(), __func__);
n = 0;
for (i = 0; i < 200; i++) {
addr = makeptr();
len = trunc_page(makearg());
flags = makearg();
if (msync(addr, len, flags) == 0)
n++;
usleep(2000);
}
if (n < 10)
fprintf(stderr, "Note: tmsync() only succeeded %d times.\n",
n);
return (NULL);
}
void
test(void)
{
pthread_t tid[5];
int i, rc;
if ((rc = pthread_create(&tid[0], NULL, tmmap, NULL)) != 0)
errc(1, rc, "tmmap()");
if ((rc = pthread_create(&tid[1], NULL, tmlock, NULL)) != 0)
errc(1, rc, "tmlock()");
if ((rc = pthread_create(&tid[2], NULL, tmprotect, NULL)) != 0)
errc(1, rc, "tmprotect()");
if ((rc = pthread_create(&tid[3], NULL, tmlockall, NULL)) != 0)
errc(1, rc, "tmlockall()");
if ((rc = pthread_create(&tid[4], NULL, tmsync, NULL)) != 0)
errc(1, rc, "tmlockall()");
for (i = 0; i < 100; i++) {
if (fork() == 0) {
usleep(10000);
_exit(0);
}
wait(NULL);
}
for (i = 0; i < 5; i++)
if ((rc = pthread_join(tid[i], NULL)) != 0)
errc(1, rc, "pthread_join(%d)", i);
_exit(0);
}
int
main(void)
{
int i, j;
for (i = 0; i < N; i++)
r[i] = arc4random();
for (i = 0; i < LOOPS; i++) {
for (j = 0; j < PARALLEL; j++) {
if (fork() == 0)
test();
}
for (j = 0; j < PARALLEL; j++)
wait(NULL);
}
return (0);
}
