69 lines
2.4 KiB
Bash
69 lines
2.4 KiB
Bash
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#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2020 Kirk McKusick <mckusick@mckusick.com>
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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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# 'panic: Lock (lockmgr) ufs not locked @ kern/kern_lock.c:1271' seen:
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# https://people.freebsd.org/~pho/stress/log/gnop8.txt
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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fsck=/sbin/fsck_ffs
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exp=/sbin/fsck_ffs.exp # Experimental version
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[ -f $exp ] && { echo "Using $exp"; fsck=$exp; }
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mdconfig -a -t swap -s 5g -u $mdstart || exit 1
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md=md$mdstart
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newfs -j /dev/$md || exit 1
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start=`date +%s`
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while [ $((`date +%s` - start)) -lt 120 ]; do
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gnop create /dev/$md || exit 1
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mount /dev/$md.nop /mnt || exit 1
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# start your favorite I/O test here
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cp -rp /[a-l]* /[n-z]* /mnt &
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# after some number of seconds
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sleep 1
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gnop destroy -f /dev/$md.nop
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kill $!
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# wait until forcible unmount, may be up to about 30 seconds,
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# but typically very quick if I/O is in progress
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while (a=`mount | egrep /mnt`) do sleep 1; done
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# first fsck will attempt journal recovery
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$fsck -d -y /dev/$md
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# second fsck will do traditional fsck to check for any errors
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# from journal recovery
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$fsck -d -y /dev/$md
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wait
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done
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mdconfig -d -u ${md#md}
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exit 0
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