82 lines
2.3 KiB
Bash
Executable File
82 lines
2.3 KiB
Bash
Executable File
#!/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.
|
|
#
|
|
|
|
# "panic: vm_map_protect: inaccessible wired map entry" seen:
|
|
# http://people.freebsd.org/~pho/stress/log/mmap11.txt
|
|
# Fixed in r266780.
|
|
|
|
# Test scenario by: Mark Johnston markj@
|
|
|
|
. ../default.cfg
|
|
|
|
dir=/tmp
|
|
odir=`pwd`
|
|
cd $dir
|
|
sed '1,/^EOF/d' < $odir/$0 > $dir/mmap12.c
|
|
mycc -o mmap12 -O2 -Wall -Wextra mmap12.c || exit 1
|
|
rm -f mmap12.c
|
|
cd $odir
|
|
|
|
/tmp/mmap12
|
|
|
|
rm -f /tmp/mmap12
|
|
exit
|
|
|
|
EOF
|
|
#include <sys/mman.h>
|
|
|
|
#include <err.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
void *addr;
|
|
size_t sz = 1;
|
|
|
|
/*
|
|
* This is the minimum amount of C code ot takes to panic the kernel.
|
|
* This is as submitted and thus not a complete and correct test program.
|
|
*/
|
|
addr = mmap(NULL, sz, PROT_READ, MAP_ANON, -1, 0);
|
|
if (addr == NULL)
|
|
err(1, "mmap");
|
|
|
|
if (mlock(addr, sz) != 0)
|
|
err(1, "mlock");
|
|
if (mprotect(addr, sz, PROT_NONE) != 0)
|
|
err(1, "mprotect 1");
|
|
if (mprotect(addr, sz, PROT_WRITE) != 0)
|
|
err(1, "mprotect 2");
|
|
if (munmap(addr, sz) != 0)
|
|
err(1, "munmap");
|
|
|
|
return (0);
|
|
}
|