1#!/bin/sh 2 3# 4# Copyright (c) 2014 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# "panic: pmap_unwire: pte 0x672d405 is missing PG_W" seen. 30# http://people.freebsd.org/~pho/stress/log/mmap20.txt 31 32# Test scenario by: Mark Johnston markj@ 33 34# Fixed by r272036 35 36. ../default.cfg 37 38dir=/tmp 39odir=`pwd` 40cd $dir 41sed '1,/^EOF/d' < $odir/$0 > $dir/mmap20.c 42mycc -o mmap20 -O2 -Wall -Wextra mmap20.c || exit 1 43rm -f mmap20.c 44cd $odir 45 46/tmp/mmap20 47s=$? 48 49rm -f /tmp/mmap20 50exit $s 51 52EOF 53#include <sys/types.h> 54#include <sys/mman.h> 55 56#include <err.h> 57#include <stdlib.h> 58 59int 60main(void) 61{ 62 char *ptr; 63 size_t sz; 64 65 sz = 4096; 66 ptr = mmap(NULL, sz, PROT_READ, MAP_ANON, -1, 0); 67 if (ptr == NULL) 68 err(1, "mmap"); 69 70 if (mlock(ptr, sz) != 0) 71 err(1, "mlock"); 72 73 if (mprotect(ptr, sz, PROT_EXEC) != 0) 74 err(1, "mprotect"); 75 76 if (madvise(ptr, sz, MADV_WILLNEED) != 0) 77 err(1, "madvise"); 78 79 if (munlock(ptr, sz) != 0) 80 err(1, "munlock"); 81 82 return (0); 83} 84