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# Test multiple (parallel) core dumps and umount -f 30 31# "panic: vn_finished_write: neg cnt" seen. 32# http://people.freebsd.org/~pho/core4.sh 33# Fixed in r274501 34 35[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 36. ../default.cfg 37 38here=`pwd` 39cd /tmp 40sed '1,/^EOF/d' < $here/$0 > core4.c 41mycc -o core4 -Wall -Wextra -O0 -g core4.c || exit 1 42rm -f core4.c 43 44mount | grep -q "$mntpoint" && umount $mntpoint 45mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart 46 47mdconfig -a -t swap -s 2g -u $mdstart 48bsdlabel -w md$mdstart auto 49 50newfs $newfs_flags md${mdstart}$part > /dev/null 51for i in `jot 20`; do 52 mount /dev/md${mdstart}$part $mntpoint 53 chmod 777 $mntpoint 54 su $testuser -c "(cd $mntpoint; /tmp/core4)" & 55 su $testuser -c "(cd $mntpoint; /tmp/core4)" & 56 su $testuser -c "(cd $mntpoint; /tmp/core4)" & 57 sleep .5 58 sleep .`jot -r 1 1 9` 59 umount -f $mntpoint 60 wait 61done 2>/dev/null 62 63while mount | grep -q "on $mntpoint "; do 64 umount $mntpoint || sleep 1 65done 66mdconfig -d -u $mdstart 67rm -f /tmp/core4 68exit 0 69EOF 70#include <sys/mman.h> 71#include <sys/param.h> 72 73#include <err.h> 74#include <signal.h> 75#include <unistd.h> 76 77#define SIZ (1024L * 1024 * 1024) 78 79int 80main(void) 81{ 82 (void)mmap(NULL, SIZ, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0); 83 usleep(1000); 84 raise(SIGSEGV); 85 86 return (0); 87} 88