xref: /freebsd/tools/test/stress2/misc/mmap39.sh (revision 4d846d260e2b9a3d4d0a701462568268cbfe7a5b)
18a272653SPeter Holm#!/bin/sh
28a272653SPeter Holm
38a272653SPeter Holm#
4*4d846d26SWarner Losh# SPDX-License-Identifier: BSD-2-Clause
58a272653SPeter Holm#
68a272653SPeter Holm# Copyright (c) 2020 Peter Holm <pho@FreeBSD.org>
78a272653SPeter Holm#
88a272653SPeter Holm# Redistribution and use in source and binary forms, with or without
98a272653SPeter Holm# modification, are permitted provided that the following conditions
108a272653SPeter Holm# are met:
118a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright
128a272653SPeter Holm#    notice, this list of conditions and the following disclaimer.
138a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright
148a272653SPeter Holm#    notice, this list of conditions and the following disclaimer in the
158a272653SPeter Holm#    documentation and/or other materials provided with the distribution.
168a272653SPeter Holm#
178a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
188a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
198a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
208a272653SPeter Holm# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
218a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
228a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
238a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
248a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
258a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
268a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
278a272653SPeter Holm# SUCH DAMAGE.
288a272653SPeter Holm#
298a272653SPeter Holm
308a272653SPeter Holm# Attempt to reproduce
318a272653SPeter Holm# "panic: pmap_release: pmap 0xfffffe012fb61b08 resident count 1 != 0"
328a272653SPeter Holm# No problems seen.
338a272653SPeter Holm
348a272653SPeter Holm# Test scenario suggestion by kib@
358a272653SPeter Holm
368a272653SPeter Holm. ../default.cfg
378a272653SPeter Holm[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1
388a272653SPeter Holm[ `uname -p` != "amd64" ] && exit 0
398a272653SPeter Holm
408a272653SPeter Holmdir=/tmp
418a272653SPeter Holmodir=`pwd`
428a272653SPeter Holmcd $dir
438a272653SPeter Holmsed '1,/^EOF/d' < $odir/$0 > $dir/mmap39.c
448a272653SPeter Holmmycc -o mmap39 -Wall -Wextra -O0 -g mmap39.c -static || exit 1
458a272653SPeter Holmrm -f mmap39.c
468a272653SPeter Holmcd $odir
478a272653SPeter Holm
488a272653SPeter Holmset -e
498a272653SPeter Holmmount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
508a272653SPeter Holm[ -c /dev/md$mdstart ] &&  mdconfig -d -u $mdstart
518a272653SPeter Holmmdconfig -a -t swap -s 2g -u $mdstart
528a272653SPeter Holmnewfs $newfs_flags md$mdstart > /dev/null
538a272653SPeter Holmmount /dev/md$mdstart $mntpoint
548a272653SPeter Holmset +e
558a272653SPeter Holm
568a272653SPeter Holmfor i in `jot 128`; do
57a724ccf3SPeter Holm	proccontrol -m aslr -s disable $dir/mmap39 &
588a272653SPeter Holm	pids="$pids $!"
598a272653SPeter Holmdone
608a272653SPeter Holms=0
618a272653SPeter Holmfor pid in $pids; do
628a272653SPeter Holm	wait $pid
638a272653SPeter Holm	r=$?
648a272653SPeter Holm	[ $s -ne 0 ] && s=$r
658a272653SPeter Holmdone
668a272653SPeter Holm
678a272653SPeter Holm[ -f mmap39.core -a $s -eq 0 ] &&
688a272653SPeter Holm    { ls -l mmap39.core; mv mmap39.core $dir; s=1; }
698a272653SPeter Holmcd $odir
708a272653SPeter Holm
718a272653SPeter Holmfor i in `jot 6`; do
728a272653SPeter Holm	mount | grep -q "on $mntpoint " || break
738a272653SPeter Holm	umount $mntpoint && break || sleep 10
748a272653SPeter Holm	[ $i -eq 6 ] &&
758a272653SPeter Holm	    { echo FATAL; fstat -mf $mntpoint; exit 1; }
768a272653SPeter Holmdone
778a272653SPeter Holmmdconfig -d -u $mdstart
788a272653SPeter Holmrm -rf $dir/mmap39
798a272653SPeter Holmexit $s
808a272653SPeter Holm
818a272653SPeter HolmEOF
828a272653SPeter Holm#include <sys/param.h>
838a272653SPeter Holm#include <sys/mman.h>
848a272653SPeter Holm#include <sys/wait.h>
858a272653SPeter Holm
868a272653SPeter Holm#include <err.h>
878a272653SPeter Holm#include <stdio.h>
888a272653SPeter Holm#include <time.h>
898a272653SPeter Holm#include <unistd.h>
908a272653SPeter Holm
918a272653SPeter Holmvoid
928a272653SPeter Holmtest(void)
938a272653SPeter Holm{
948a272653SPeter Holm	size_t i, len;
958a272653SPeter Holm	void *p;
968a272653SPeter Holm
978a272653SPeter Holm	p = (void *)0x8000000000; /* 512G */
988a272653SPeter Holm	len = 0x200000;		  /*   2M */
998a272653SPeter Holm	if ((p = mmap(p, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0)) ==
1008a272653SPeter Holm	    MAP_FAILED)
1018a272653SPeter Holm		err(1, "mmap");
1028a272653SPeter Holm
1038a272653SPeter Holm	if (p != (void *)0x8000000000)
1048a272653SPeter Holm		errx(1, "mmap address fail");
1058a272653SPeter Holm
1068a272653SPeter Holm	for (i = 0; i < len; i += PAGE_SIZE)
1078a272653SPeter Holm		*(char *)(p + i) = 1;
1088a272653SPeter Holm
1098a272653SPeter Holm	if (munmap(p, len) == -1)
1108a272653SPeter Holm		err(1, "munmap()");
1118a272653SPeter Holm
1128a272653SPeter Holm	_exit(0);
1138a272653SPeter Holm}
1148a272653SPeter Holm
1158a272653SPeter Holmint
1168a272653SPeter Holmmain(void)
1178a272653SPeter Holm{
1188a272653SPeter Holm	time_t start;
1198a272653SPeter Holm	pid_t pid;
1208a272653SPeter Holm
1218a272653SPeter Holm	sleep(5);
1228a272653SPeter Holm	start = time(NULL);
1238a272653SPeter Holm	while (time(NULL) - start < 120) {
1248a272653SPeter Holm		if ((pid = fork()) == 0)
1258a272653SPeter Holm			test();
1268a272653SPeter Holm		if (waitpid(pid, NULL, 0) != pid)
1278a272653SPeter Holm			err(1, "waitpid");
1288a272653SPeter Holm	}
1298a272653SPeter Holm
1308a272653SPeter Holm	return (0);
1318a272653SPeter Holm}
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