1#!/bin/sh 2 3# 4# Copyright (c) 2013 Peter Holm <pho@FreeBSD.org> 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# Disk full with one snapshot scenario 30# "panic: softdep_deallocate_dependencies: unrecovered I/O error" seen. 31 32# kern/162362: ufs with snapshot(s) panics when getting full 33 34[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35 36. ../default.cfg 37 38mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 39mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 40 41mdconfig -a -t swap -s 2g -u $mdstart || exit 1 42newfs $newfs_flags md$mdstart > /dev/null 43mount /dev/md$mdstart $mntpoint 44 45dd if=/dev/zero of=$mntpoint/big1 bs=1m count=512 status=none 46dd if=/dev/zero of=$mntpoint/big2 bs=1m count=512 status=none 47dd if=/dev/zero of=$mntpoint/big3 bs=1m count=512 status=none 48 49mksnap_ffs $mntpoint $mntpoint/.snap/snap 50 51for i in `jot 10`; do 52 dd if=/dev/zero of=$mntpoint/big.$i bs=1m count=512 status=none || 53 break 54done 55rm $mntpoint/big.* 56rm -f $mntpoint/.snap/snap 57 58while mount | grep "$mntpoint" | grep -q md$mdstart; do 59 umount $mntpoint || sleep 1 60done 61mdconfig -d -u $mdstart 62