1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2023 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# "panic: ffs_copyonwrite: bad copy block" seen: 31# Hunt for fsck_ffs's INTERNAL ERROR message 32 33# https://people.freebsd.org/~pho/stress/log/log0426.txt 34 35. ../default.cfg 36 37[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 38 39cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1 40 41set -e 42prog=$(basename "$0" .sh) 43u1=$mdstart 44u2=$((mdstart + 1)) 45mp1=${mntpoint}$u1 46mp2=${mntpoint}$u2 47mkdir -p $mp1 $mp2 48log=$mp1/$prog.sh.log 49diskimage=$mp1/$prog.sh.diskimage 50backup=/tmp/$prog.sh.diskimage.`date +%Y%m%dT%H%M%S`.gz 51cleans=0 52reruns=0 53 54mount | grep "on $mp1 " | grep -q /dev/md && umount -f $mp1 55[ -c /dev/md$u1 ] && mdconfig -d -u $u1 56mdconfig -a -t swap -s 1g -u $u1 57newfs $newfs_flags -n /dev/md$u1 > /dev/null 58mount /dev/md$u1 $mp1 59 60newfs_flags='-j' 61[ $# -eq 1 ] && newfs_flags="$1" # or use script argument 62max=$((2 * 1024 * 1024)) 63[ "$newfs_flags" = "-j" ] && max=$((20 * 1024 * 1024)) # Make room for the journal file 64 65[ -c /dev/md$u2 ] && mdconfig -d -u $u2 66dd if=/dev/zero of=$diskimage bs=$max count=1 status=none 67mdconfig -a -t vnode -f $diskimage -u $u2 68backups=`newfs -N $newfs_flags md$u2 | grep -A1 "super-block backups" | \ 69 tail -1 | sed 's/,//g'` 70echo "newfs $newfs_flags md$u2" 71newfs $newfs_flags md$u2 > /dev/null 72set +e 73 74chk() { 75 local i 76 77 clean=0 78 rerun=0 79 fsck_ffs -fy $1 > $log 2>&1 80 r=$? 81 grep "GOT TO reply" $log && exit 1 82 if grep -qiE "super-?block.*failed" $log; then 83 for b in $backups; do 84 echo "fsck_ffs -b $b -fy $1" 85 fsck_ffs -b $b -fy $1 > $log 2>&1 86 r=$? 87 grep "GOT TO reply" $log && exit 1 88 grep -qiE "super-?block.*failed" $log || 89 break 90 echo "Checking next SB" 91 done 92 usedasb=1 93 else 94 usedasb=0 95 fi 96 LANG=C egrep -q "[A-Z][A-Z]" $log && clean=0 97 grep -Eq "IS CLEAN|MARKED CLEAN" $log && clean=1 98 grep -q RERUN $log && rerun=1 99 [ $r -ne 0 -a $clean -eq 1 ] && echo "Exit code $r w/ clean == 1" 100} 101 102cd $mp1 103clean=0 104errors=0 105s=0 106sno=0 107start=`date +%s` 108while [ $((`date +%s` - start)) -lt 300 ]; do 109 mount /dev/md$u2 $mp2 || break 110 if ! ls -lR $mp2 > /dev/null; then 111 s=102 112 echo "ls failed"; grep "core dumped" /var/log/messages | tail -1 113 break 114 fi 115 mkdir -p $mp2/d/d/d/d/d 116 cp /etc/group $mp2/d/d/d/d/d/f 117 for i in `jot 20`; do 118 cp -r $mp2/d $i 119 done 120 121 rm -f $mp2/.snap/$sno 122 mksnap_ffs $mp2 $mp2/.snap/$sno & 123 sno=$(((sno + 1) % 10)) 124 125 sleep 1 126 rm -rf $mp/? 127 wait 128 while mount | grep -q "on $mp2 "; do umount $mp2; done 129 echo * | grep -q core && break 130 mdconfig -d -u $u2 131 132 # Introduce 5 random single bit errors to the file system image 133 /tmp/flip -n 5 $diskimage 134 135 if [ `stat -f%z $diskimage` -gt $max ]; then 136 ls -lh $diskimage 137 truncate -s $max $diskimage 138 else 139 gzip < $diskimage > $backup 140 fi 141 fsync $backup 142 sync; sleep 1 143 144 [ $newfs_flags = "-j" ] && 145 fsck -fy $diskimage > $log 2>&1 # process the journal file 146 for i in `jot 5`; do 147 [ $i -gt 2 ] && echo "fsck run #$i" 148 chk $diskimage 149 [ $rerun -eq 1 ] && { reruns=$((reruns + 1)); continue; } 150 grep -q "MODIFIED" $log && continue # For now, do not trust CLEAN 151 [ $clean -eq 1 ] && { cleans=$((cleans + 1)); break; } 152 if [ -f fsck_ffs.core ]; then 153 s=1 154 break 2 155 fi 156 done 157 [ $clean -ne 1 ] && { s=99; break; } # broken image? 158 mdconfig -a -t vnode -f $diskimage -u $u2 159done 160for i in `jot 5`; do 161 mount | grep -q "on $mp2 " || break 162 umount $mp2 && break 163 sleep 2 164done 165mdconfig -l | grep -q $u2 && mdconfig -d -u $u2 166 167[ $s -eq 0 ] && rm -f $backup || echo "Preserved $backup due to status code $s" 168cd /tmp 169for i in `jot 5`; do 170 umount $mp1 && break 171 sleep 2 172done 173mdconfig -d -u $u1 174rm -f /tmp/flip 175exit $s 176