130 lines
3.1 KiB
Bash
Executable File
130 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
#
|
|
# Copyright (c) 2013 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.
|
|
#
|
|
|
|
# Test scenario inspired by alc@
|
|
# "panic: vm_page_dirty: page is invalid!" seen.
|
|
# Fixed in r255396.
|
|
|
|
. ../default.cfg
|
|
|
|
dir=/tmp
|
|
odir=`pwd`
|
|
cd $dir
|
|
sed '1,/^EOF/d' < $odir/$0 > $dir/mmap5.c
|
|
mycc -o mmap5 -Wall -Wextra mmap5.c || exit 1
|
|
rm -f mmap5.c
|
|
cd $odir
|
|
|
|
cp /tmp/mmap5 /tmp/mmap5.inputfile
|
|
(cd ../testcases/swap; ./swap -t 1m -i 2) &
|
|
cp /tmp/mmap5 /tmp/mmap5.inputfile
|
|
/tmp/mmap5 /tmp/mmap5.inputfile
|
|
while killall -9 swap; do
|
|
sleep .1
|
|
done > /dev/null 2>&1
|
|
wait
|
|
rm -f /tmp/mmap5 /tmp/mmap5.inputfile
|
|
exit
|
|
|
|
EOF
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/param.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
|
|
const char *file;
|
|
|
|
void
|
|
test2(void)
|
|
{
|
|
struct stat st;
|
|
char *p;
|
|
size_t len;
|
|
int error, fd;
|
|
|
|
if ((fd = open(file, O_RDWR)) == -1)
|
|
err(1, "open %s", file);
|
|
if ((error = fstat(fd, &st)) == -1)
|
|
err(1, "stat(%s)", file);
|
|
len = round_page(st.st_size);
|
|
if ((p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED)
|
|
err(1, "mmap");
|
|
p[arc4random() % len] = 1;
|
|
if (arc4random() % 100 < 50)
|
|
if ((error = mlock(p, len)) == -1)
|
|
err(1, "mlock");
|
|
p[arc4random() % len] = 1;
|
|
if (arc4random() % 100 < 50)
|
|
if ((error = msync(p, len, MS_SYNC | MS_INVALIDATE)) == -1)
|
|
if (errno != EBUSY)
|
|
err(1, "msync");
|
|
if (munmap(p, len) == -1)
|
|
err(1, "unmap()");
|
|
close(fd);
|
|
_exit(0);
|
|
|
|
}
|
|
|
|
void
|
|
test(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 3; i++)
|
|
if (fork() == 0)
|
|
test2();
|
|
for (i = 0; i < 3; i++)
|
|
wait(NULL);
|
|
|
|
_exit(0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
int i;
|
|
|
|
if (argc != 2)
|
|
errx(1, "Usage: %s <file>", argv[0]);
|
|
file = argv[1];
|
|
|
|
for (i = 0; i < 30000; i++) {
|
|
if (fork() == 0)
|
|
test();
|
|
wait(NULL);
|
|
}
|
|
|
|
return (0);
|
|
}
|