1*8a272653SPeter Holm#!/bin/sh 2*8a272653SPeter Holm 3*8a272653SPeter Holm# 4*8a272653SPeter Holm# Copyright (c) 2015 EMC Corp. 5*8a272653SPeter Holm# All rights reserved. 6*8a272653SPeter Holm# 7*8a272653SPeter Holm# Redistribution and use in source and binary forms, with or without 8*8a272653SPeter Holm# modification, are permitted provided that the following conditions 9*8a272653SPeter Holm# are met: 10*8a272653SPeter Holm# 1. Redistributions of source code must retain the above copyright 11*8a272653SPeter Holm# notice, this list of conditions and the following disclaimer. 12*8a272653SPeter Holm# 2. Redistributions in binary form must reproduce the above copyright 13*8a272653SPeter Holm# notice, this list of conditions and the following disclaimer in the 14*8a272653SPeter Holm# documentation and/or other materials provided with the distribution. 15*8a272653SPeter Holm# 16*8a272653SPeter Holm# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17*8a272653SPeter Holm# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*8a272653SPeter Holm# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*8a272653SPeter Holm# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20*8a272653SPeter Holm# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*8a272653SPeter Holm# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*8a272653SPeter Holm# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*8a272653SPeter Holm# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*8a272653SPeter Holm# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*8a272653SPeter Holm# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*8a272653SPeter Holm# SUCH DAMAGE. 27*8a272653SPeter Holm# 28*8a272653SPeter Holm 29*8a272653SPeter Holm# Out of swap seen with no swap disk: 30*8a272653SPeter Holm# dd 'if=/dev/zero' 'of=/var/tmp/diskimage.1' 'bs=1m' 'count=3427' 31*8a272653SPeter Holm# pid 598 (ntpd), uid 0, was killed: out of swap space 32*8a272653SPeter Holm# pid 656 (sendmail), uid 0, was killed: out of swap space 33*8a272653SPeter Holm# pid 659 (sendmail), uid 25, was killed: out of swap space 34*8a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/alan020.txt 35*8a272653SPeter Holm 36*8a272653SPeter Holm# Deadlock seen: 37*8a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/kostik845.txt 38*8a272653SPeter Holm# Fixed by r290920. 39*8a272653SPeter Holm 40*8a272653SPeter Holm. ../default.cfg 41*8a272653SPeter Holm 42*8a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 43*8a272653SPeter Holm[ `sysctl -n hw.physmem` -gt $(( 8 * 1024 * 1024 * 1024)) ] && exit 0 44*8a272653SPeter Holm[ `swapinfo | wc -l` -eq 1 ] || { swapoff -a; off=1; } 45*8a272653SPeter Holmsize=$((`sysctl -n hw.physmem` / 1024 / 1024)) 46*8a272653SPeter Holmneed=$((size * 2)) 47*8a272653SPeter Holmd1=$diskimage.1 48*8a272653SPeter Holmd2=$diskimage.2 49*8a272653SPeter Holmrm -f $d1 $d2 || exit 1 50*8a272653SPeter Holm[ `df -k $(dirname $diskimage) | tail -1 | awk '{print int($4 / 1024)}'` \ 51*8a272653SPeter Holm -lt $need ] && 52*8a272653SPeter Holm printf "Need %d MB on %s.\n" $need `dirname $diskimage` && exit 0 53*8a272653SPeter Holmtrap "rm -f $d1 $d2" EXIT INT 54*8a272653SPeter Holmdd if=/dev/zero of=$d1 bs=1m count=$size status=none 55*8a272653SPeter Holmcp $d1 $d2 56*8a272653SPeter Holm[ $off ] && swapon -a 57