Date: Sun, 27 Apr 2014 08:22:44 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r265007 - user/pho/stress2/misc Message-ID: <201404270822.s3R8Miw5027281@svn.freebsd.org>
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Author: pho Date: Sun Apr 27 08:22:44 2014 New Revision: 265007 URL: http://svnweb.freebsd.org/changeset/base/265007 Log: Added a regression test for r265002. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/mmap8.sh (contents, props changed) Added: user/pho/stress2/misc/mmap8.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/mmap8.sh Sun Apr 27 08:22:44 2014 (r265007) @@ -0,0 +1,84 @@ +#!/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. +# +# $FreeBSD$ +# + +# "panic: vm_fault_copy_wired: page missing" seen: +# http://people.freebsd.org/~pho/stress/log/mmap8.txt +# Fixed in r265002. + +# Test scenario by: Mark Johnston markj@ + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/mmap8.c +cc -o mmap8 -Wall -Wextra mmap8.c || exit 1 +cc -o mmap8p -Wall -Wextra mmap8.c -pthread || exit 1 +rm -f mmap8.c +cd $odir + +/tmp/mmap8p +/tmp/mmap8 + +rm -f /tmp/mmap8 /tmp/mmap8p +exit + +EOF +#include <sys/types.h> +#include <sys/mman.h> + +#include <err.h> +#include <string.h> +#include <unistd.h> + +int +main(void) +{ + size_t sz = 1; + char *addr; + + addr = mmap(NULL, sz, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0); + if (addr == NULL) + err(1, "mmap"); + memset(addr, 0, sz); + + if (fork() != 0) { + if (mprotect(addr, sz, PROT_READ)) + err(1, "mprotect"); + if (mlock(addr, sz)) + err(1, "mlock"); + if (mprotect(addr, sz, PROT_WRITE | PROT_READ)) + err(1, "mprotect"); + if (munmap(addr, sz)) + err(1, "munmap"); + } else + sleep(1); + + return (0); +}
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