77 lines
2.6 KiB
Bash
Executable File
77 lines
2.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2011 Peter Holm <pho@FreeBSD.org>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Deadlock scenario based on kern/154228, fixed in r217880.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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size="2g"
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[ `swapinfo | wc -l` -eq 1 ] && exit 0
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[ `swapinfo -k | tail -1 | awk '{print int($4/1024/1024)}'` -lt \
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${size%g} ] && exit 0
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m=$((mdstart + 1))
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mp2=${mntpoint}$m
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mount | grep $mp2 | grep -q /dev/md && umount -f $mp2
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mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
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[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
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[ -c /dev/md$m ] && mdconfig -d -u $m
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mkdir -p $mp2
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mdconfig -a -t swap -s $size -u $mdstart || exit 1
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gjournal load
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gjournal label -s 512m md$mdstart
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sleep .5
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newfs -J /dev/md$mdstart.journal > /dev/null
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mount -o async /dev/md$mdstart.journal $mntpoint
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here=`pwd`
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cd $mntpoint
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dd if=/dev/zero of=image bs=1m count=1k status=none
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mdconfig -a -t vnode -f image -u $m
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bsdlabel -w md$m auto
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newfs md${m}$part > /dev/null
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mount /dev/md${m}$part $mp2
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# dd will suspend in wdrain
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echo "Expect \"$mp2: write failed, filesystem is full\""
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dd if=/dev/zero of=$mp2/zero bs=1M > /dev/null 2>&1
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while mount | grep $mp2 | grep -q /dev/md; do
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umount $mp2 || sleep 1
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done
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mdconfig -d -u $m
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cd $here
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gjournal sync
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while mount | grep $mntpoint | grep -q /dev/md; do
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umount $mntpoint || sleep 1
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done
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gjournal stop md$mdstart
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gjournal unload
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mdconfig -d -u $mdstart
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