blob: 37ba2aaa7c85c533105949b151adee2c765f2ead [file] [log] [blame]
#! /bin/bash
# FS QA Test No. 010
#
# Create and populate an ext4 filesystem, corrupt an inode bitmap, then
# see how the kernel and e2fsck deal with it.
#
#-----------------------------------------------------------------------
# Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#-----------------------------------------------------------------------
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd /
#rm -f $tmp.*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/attr
# real QA test starts here
_supported_fs ext4
_supported_os Linux
_require_scratch
_require_dumpe2fs
test -n "${FORCE_FUZZ}" || _require_scratch_ext4_crc
_require_attrs
_require_command "$RESIZE2FS_PROG" resize2fs
rm -f $seqres.full
TESTDIR="${SCRATCH_MNT}/scratchdir"
TESTFILE="${TESTDIR}/testfile"
echo "+ create scratch fs"
_scratch_mkfs_ext4 > /dev/null 2>&1
$DUMPE2FS_PROG -g "${SCRATCH_DEV}" > /dev/null 2>&1 || _notrun "dumpe2fs -g not supported"
$RESIZE2FS_PROG -M "${SCRATCH_DEV}" >> $seqres.full 2>&1
nr_groups="$($DUMPE2FS_PROG -g "${SCRATCH_DEV}" 2> /dev/null | tail -n 1 | cut -d : -f 1)"
echo "+ mount fs image"
_scratch_mount
echo "+ make some files"
# abuse orlov allocator in the hopes that each bg ends up with some inodes
for i in `seq 1 $((nr_groups * 8))`; do
mkdir -p "${SCRATCH_MNT}/d_${i}"
done
umount "${SCRATCH_MNT}"
echo "+ check fs"
e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"
echo "+ corrupt image"
$DUMPE2FS_PROG -g "${SCRATCH_DEV}" 2>/dev/null | awk -F ':' '{if (int($6) > 0) {print $6}}' | while read blk; do
debugfs -w -n -R "zap_block ${blk}" "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "inode bitmap fuzz failed"
done
echo "+ mount image"
_scratch_mount
echo "+ modify files"
touch "${SCRATCH_MNT}/file0" > /dev/null 2>&1 && _fail "touch should fail"
umount "${SCRATCH_MNT}"
echo "+ repair fs"
e2fsck -fy "${SCRATCH_DEV}" >> $seqres.full 2>&1
echo "+ mount image (2)"
_scratch_mount
echo "+ modify files (2)"
touch "${SCRATCH_MNT}/file1"
umount "${SCRATCH_MNT}"
echo "+ check fs (2)"
e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"
status=0
exit