Date: Mon, 10 Jun 2019 07:12:46 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r348848 - user/pho/stress2/misc Message-ID: <201906100712.x5A7Ck9u029424@repo.freebsd.org>
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Author: pho Date: Mon Jun 10 07:12:46 2019 New Revision: 348848 URL: https://svnweb.freebsd.org/changeset/base/348848 Log: Added a regression test. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/mmap35.sh (contents, props changed) Added: user/pho/stress2/misc/mmap35.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/mmap35.sh Mon Jun 10 07:12:46 2019 (r348848) @@ -0,0 +1,114 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2019 Dell EMC Isilon +# +# 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. +# +# $FreeBSD$ +# + +# mmap(2) should fail with "Invalid argument" on i386 +# Fixed by r348843 + +. ../default.cfg +[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 +[ "`uname -p`" = "i386" ] || exit 0 + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/mmap35.c +mycc -o mmap35 -Wall -Wextra -O0 -g mmap35.c || exit 1 +cd $odir + +set -e +mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 4g -u $mdstart +newfs $newfs_flags -n md$mdstart > /dev/null +mount /dev/md$mdstart $mntpoint +set +e + +cd $mntpoint +echo "Expect: mmap35: mmap: Invalid argument" +$dir/mmap35 +s=$? +[ -f mmap35.core ] && + { ls -l mmap35.core; mv mmap35.core $dir; s=1; } +cd $odir + +for i in `jot 6`; do + mount | grep -q "on $mntpoint " || break + umount $mntpoint && break || sleep 10 + [ $i -eq 6 ] && + { echo FATAL; fstat -mf $mntpoint; exit 1; } +done +mdconfig -d -u $mdstart +rm -f $dir/mmap35 +[ $s -eq 0 ] && rm -f mmap35.c +exit $s + +EOF +#include <sys/param.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#define SIZ 0xfffff0fcULL + +int +main(void) +{ + off_t offset; + int fd; + char *c, file[80]; + + snprintf(file, sizeof(file), "file.%d", getpid()); + if ((fd = open(file, O_RDWR | O_CREAT, DEFFILEMODE)) == -1) + err(1, "open(%s)", file); + + offset = SIZ; + if (ftruncate(fd, offset) == -1) + err(1, "ftruncate(%jd)", offset); + write(fd, "b", 1); + + c = mmap(NULL, offset, PROT_READ | PROT_WRITE, MAP_SHARED, + fd, 0); + if (c == MAP_FAILED) + warn("mmap"); + else + c[offset / 2] = 1; + + unlink(file); + + return (0); +}
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