1*8a272653SPeter Holm#!/bin/sh 2*8a272653SPeter Holm 3*8a272653SPeter Holm# 4*8a272653SPeter Holm# Copyright (c) 2013 Peter Holm <pho@FreeBSD.org> 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# Deadlock seen: http://people.freebsd.org/~pho/stress/log/gjournal3.txt 30*8a272653SPeter Holm# Fixed in r244925 31*8a272653SPeter Holm 32*8a272653SPeter Holm# panic: Bio not on queue 33*8a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/gjournal3-2.txt 34*8a272653SPeter Holm 35*8a272653SPeter Holm# kib@ wrote: 36*8a272653SPeter Holm# gjournal is good for exposing the suspension problems. The frequency 37*8a272653SPeter Holm# of the suspensions called from the gjournal is not achievable by other 38*8a272653SPeter Holm# methods, so the tests allow to uncover the problems. More, the gjournal 39*8a272653SPeter Holm# only establishes the suspension, without snapshotting, which also 40*8a272653SPeter Holm# makes it easier to see the issues. 41*8a272653SPeter Holm 42*8a272653SPeter Holm# gjournal / ffs snapshot suspension deadlock: 43*8a272653SPeter Holm# https://people.freebsd.org/~pho/stress/log/gjournal3-4.txt 44*8a272653SPeter Holm# Originally reported as kern/164252. 45*8a272653SPeter Holm 46*8a272653SPeter Holm[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 47*8a272653SPeter Holm 48*8a272653SPeter Holm. ../default.cfg 49*8a272653SPeter Holm 50*8a272653SPeter Holm[ `swapinfo | wc -l` -eq 1 ] && exit 0 51*8a272653SPeter Holmsize="12g" 52*8a272653SPeter Holmjsize="8g" 53*8a272653SPeter Holm[ $((`sysctl -n hw.usermem` / 1024 / 1024 / 1024)) -le ${size%g} ] && exit 0 54*8a272653SPeter Holm[ `swapinfo -k | tail -1 | awk '{print int($4/1024/1024)}'` -lt \ 55*8a272653SPeter Holm ${size%g} ] && exit 0 56*8a272653SPeter Holmmount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 57*8a272653SPeter Holm[ -c /dev/mdmd$mdstart ] && mdconfig -d -u $mdstart 58*8a272653SPeter Holmmdconfig -a -t swap -s $size -u $mdstart || exit 1 59*8a272653SPeter Holm 60*8a272653SPeter Holmgjournal load 61*8a272653SPeter Holmgjournal label -s $jsize md$mdstart 62*8a272653SPeter Holmsleep .5 63*8a272653SPeter Holmnewfs -J /dev/md$mdstart.journal > /dev/null 64*8a272653SPeter Holmmount -o async /dev/md$mdstart.journal $mntpoint 65*8a272653SPeter Holmchmod 777 $mntpoint 66*8a272653SPeter Holm 67*8a272653SPeter Holmexport runRUNTIME=10m 68*8a272653SPeter Holmexport RUNDIR=$mntpoint/stressX 69*8a272653SPeter Holm 70*8a272653SPeter Holmsu $testuser -c 'cd ../testcases/rw 71*8a272653SPeter Holm ./rw -t 2m -i 10 -l 100 > /dev/null 2>&1' & 72*8a272653SPeter Holmwhile kill -0 $! 2>/dev/null; do 73*8a272653SPeter Holm mksnap_ffs $mntpoint $mntpoint/.snap/snap 74*8a272653SPeter Holm sleep .2 75*8a272653SPeter Holm rm -f $mntpoint/.snap/snap 76*8a272653SPeter Holmdone 77*8a272653SPeter Holmwait 78*8a272653SPeter Holm 79*8a272653SPeter Holmgjournal sync 80*8a272653SPeter Holmwhile mount | grep $mntpoint | grep -q /dev/md; do 81*8a272653SPeter Holm umount $mntpoint || sleep 1 82*8a272653SPeter Holmdone 83*8a272653SPeter Holmgjournal stop md$mdstart 84*8a272653SPeter Holmgjournal unload 85*8a272653SPeter Holmmdconfig -d -u $mdstart 86