1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5# 6# Copyright (c) 2022 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# fsck_ffs(8) disk image fuzz test. SB focus. 31 32# panic: wrong length 4098 for sectorsize 512 33# FreeBSD 14.0-CURRENT #0 main-n255602-51adf913e8815: Fri May 13 07:55:32 CEST 2022 34# pho@mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO 35 36. ../default.cfg 37 38[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 39 40cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1 41 42set -e 43u1=$mdstart 44u2=$((mdstart + 1)) 45mp1=${mntpoint}$u1 46mp2=${mntpoint}$u2 47mkdir -p $mp1 $mp2 48log=$mp1/fsck8.sh.log 49diskimage=$mp1/fsck8.sh.diskimage 50backup=/tmp/fsck8.sh.diskimage.`date +%Y%m%dT%H%M%S`.gz 51asbs=0 52cleans=0 53reruns=0 54waccess=0 55 56max=$((10 * 1024 * 1024)) 57# UFS1 or UFS2 SU: 58[ `jot -r 1 0 1` -eq 0 ] && newfs_flags='-O 1' || newfs_flags='-O 2 -U' 59 60mount | grep "on $mp1 " | grep -q /dev/md && umount -f $mp1 61[ -c /dev/md$u1 ] && mdconfig -d -u $u1 62mdconfig -a -t swap -s 1g -u $u1 63newfs $newfs_flags -n /dev/md$u1 > /dev/null 64mount /dev/md$u1 $mp1 65 66[ -c /dev/md$u2 ] && mdconfig -d -u $u2 67dd if=/dev/zero of=$diskimage bs=$max count=1 status=none 68mdconfig -a -t vnode -f $diskimage -u $u2 69backups=`newfs -N $newfs_flags md$u2 | grep -A1 "super-block backups" | \ 70 tail -1 | sed 's/,//g'` 71newfs $newfs_flags -n md$u2 > /dev/null 72mount /dev/md$u2 $mp2 73[ -d /usr/include/sys ] && cp -r /usr/include/sys $mp2 74umount $mp2 75set +e 76 77chk() { 78 local i 79 80 clean=0 81 rerun=0 82 waccess=0 83 fsck_ffs -fy $1 > $log 2>&1 84 r=$? 85 if grep -qE "Cannot find file system superblock|Superblock check-hash failed" $log; then 86 for b in $backups; do 87 echo "Using alternate SB $b" 88 asbs=$((asbs + 1)) 89 fsck_ffs -b $b -fy $1 > $log 2>&1 90 r=$? 91 grep -qE "Cannot find file system superblock|Superblock check-hash failed" $log || 92 break 93 done 94 usedasb=1 95 else 96 usedasb=0 97 fi 98 LANG=C egrep -q "[A-Z][A-Z]" $log && clean=0 99 grep -Eq "IS CLEAN|MARKED CLEAN" $log && clean=1 100 # For now regard a "was modified" as a cause for a rerun, 101 # disregarding the "clean" claim. 102 grep -Eq "WAS MODIFIED" $log && rerun=1 103 grep -q RERUN $log && rerun=1 104 grep -q "NO WRITE ACCESS" $log && waccess=1 105 [ $r -ne 0 -a $clean -eq 1 ] && echo "Exit code $r w/ clean == 1" 106} 107 108cd $mp1 109clean=0 110s=0 111start=`date +%s` 112while [ $((`date +%s` - start)) -lt 300 ]; do 113 mount /dev/md$u2 $mp2 || { s=101; break; } 114 ls -lR $mp2 > /dev/null || { s=102; echo "ls failed"; break; } 115 touch $mp2/`jot -rc 8 a z | tr -d '\n'` 116 while mount | grep -q "on $mp2 "; do umount $mp2; done 117 echo * | grep -q core && break 118 sync 119 mdconfig -d -u $u2 120 # SBLOCK = 64k, SBLOCKSIZE = 8k 121 /tmp/flip -n 5 -s $(((64 + 8) * 1024)) $diskimage 122 123 sync 124 if [ `stat -f%z $diskimage` -gt $max ]; then 125 ls -lh $diskimage 126 truncate -s $max $diskimage 127 else 128 gzip < $diskimage > $backup 129 fi 130 fsync $backup 131 132 for i in `jot 5`; do 133 [ $i -gt 2 ] && echo "fsck run #$i" 134 chk $diskimage 135 [ $rerun -eq 1 ] && { reruns=$((reruns + 1)); continue; } 136 [ $clean -eq 1 ] && { cleans=$((cleans + 1)); break; } 137 [ -f fsck_ffs.core ] && 138 { cp $diskimage \ 139 /tmp/fsck_ffs.core.diskimage.`date +%Y%m%dT%H%M%S`; break 2; } 140 done 141 [ $clean -ne 1 ] && break 142 mdconfig -a -t vnode -f $diskimage -u $u2 143 [ $r -ne 0 -a $clean -eq 1 ] && 144 { echo "CLEAN && non zero exit code"; break; } 145 [ $clean -eq 1 ] && continue 146 [ $usedasb -eq 1 ] && { echo "Alt. SB failed"; s=104; } 147 [ $waccess -eq 1 ] && { echo "No write access"; s=105; } 148 break 149done 150sleep 2 # Wait for /dev to catch up 151[ -c /dev/md$u2 ] && r1=1 || r1=0 152for i in `jot 5`; do 153 mount | grep -q "on $mp2 " || break 154 umount $mp2 && break 155 sleep 2 156done 157mdconfig -d -u $u2 2>/dev/null # XXX when mount fails 158 159echo "$cleans cleans, $reruns reruns, $asbs alternate SBs." 160if [ $clean -ne 1 ]; then 161 echo "FS still not clean. Last fsck_ffs exit code was $r." 162 echo ================= 163 cat $log 164 echo ================= 165 cp -v $log /tmp 166 [ $s -eq 0 ] && s=106 167fi 168echo * | grep -q core && { ls -l *.core; cp $log /tmp; exit 106; } || 169 rm -f $backup 170[ $s -eq 101 ] && rm -f $backup # mount error breakout 171cd /tmp 172for i in `jot 5`; do 173 umount $mp1 && break 174 sleep 2 175done 176mdconfig -d -u $u1 177rm -f /tmp/flip 178exit $s 179