mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
xfs: test allocation group metadata corruption checking and repair
Targeted fuzzing tests which destroy various pieces of filesystem or allocation group metadata; the tests look for (a) kernel detection of corruption, (b) xfs_repair repair of said corruption, and (c) post-repair fs usability. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Darrick J. Wong
committed by
Dave Chinner
Dave Chinner
parent
fc4dd61688
commit
d492bcd86b
Executable
+147
@@ -0,0 +1,147 @@
|
||||
#! /bin/bash
|
||||
# FS QA Test No. 089
|
||||
#
|
||||
# Create and populate an XFS filesystem, corrupt the bnobt, then see how
|
||||
# the kernel and xfs_repair 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 $tmp.*
|
||||
}
|
||||
|
||||
# get standard environment, filters and checks
|
||||
. ./common/rc
|
||||
. ./common/filter
|
||||
. ./common/attr
|
||||
. ./common/populate
|
||||
|
||||
# real QA test starts here
|
||||
_supported_fs xfs
|
||||
_supported_os Linux
|
||||
|
||||
_require_scratch
|
||||
test -n "${FORCE_FUZZ}" || _require_scratch_xfs_crc
|
||||
_require_attrs
|
||||
_require_xfs_db_blocktrash_z_command
|
||||
test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-n 8 -3"
|
||||
|
||||
rm -f $seqres.full
|
||||
TESTDIR="${SCRATCH_MNT}/scratchdir"
|
||||
TESTFILE="${TESTDIR}/testfile"
|
||||
|
||||
echo "+ create scratch fs"
|
||||
_scratch_mkfs_xfs > /dev/null
|
||||
|
||||
echo "+ mount fs image"
|
||||
_scratch_mount
|
||||
blksz="$(stat -f -c '%s' "${SCRATCH_MNT}")"
|
||||
|
||||
echo "+ make some files"
|
||||
mkdir -p "${TESTDIR}"
|
||||
for x in `seq 1 1024`; do
|
||||
touch "${SCRATCH_MNT}/junk.${x}"
|
||||
inode="$(stat -c '%i' "${SCRATCH_MNT}/junk.${x}")"
|
||||
if [ "$x" -gt 512 ] && [ "$((inode % 64))" -eq 0 ]; then
|
||||
mv "${SCRATCH_MNT}/junk.${x}" "${TESTFILE}.1"
|
||||
break
|
||||
fi
|
||||
done
|
||||
for x in `seq 2 64`; do
|
||||
touch "${TESTFILE}.${x}"
|
||||
done
|
||||
inode="$(stat -c '%i' "${TESTFILE}.1")"
|
||||
agcount="$(xfs_info "${SCRATCH_MNT}" | grep agcount= | sed -e 's/^.*agcount=\([0-9]*\),.*$/\1/g')"
|
||||
umount "${SCRATCH_MNT}"
|
||||
|
||||
echo "+ check fs"
|
||||
_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
|
||||
|
||||
echo "+ corrupt image"
|
||||
for ag in $(seq 1 $((agcount - 1))) 0; do
|
||||
$XFS_DB_PROG -x -c "agf ${ag}" -c "agf ${ag}" -c "addr bnoroot" -c "stack" -c "blocktrash -x 32 -y $((blksz * 8)) -z ${FUZZ_ARGS}" "${SCRATCH_DEV}" >> $seqres.full 2>&1
|
||||
done
|
||||
|
||||
# Try to append to files; this should fail
|
||||
echo "+ mount image"
|
||||
_scratch_mount
|
||||
|
||||
echo "+ modify files"
|
||||
for x in `seq 1 64`; do
|
||||
$XFS_IO_PROG -f -c "pwrite -S 0x62 0 ${blksz}" "${TESTFILE}.${x}" >> $seqres.full
|
||||
done
|
||||
umount "${SCRATCH_MNT}"
|
||||
|
||||
echo "+ repair fs"
|
||||
_scratch_xfs_repair >> $seqres.full 2>&1
|
||||
|
||||
echo "+ mount image"
|
||||
_scratch_mount
|
||||
|
||||
echo "+ chattr -R -i"
|
||||
chattr -R -f -i "${SCRATCH_MNT}/"
|
||||
|
||||
echo "+ check files"
|
||||
ls -la "${TESTDIR}" >> $seqres.full
|
||||
broken=0
|
||||
for x in `seq 1 64`; do
|
||||
test -s "${TESTFILE}.${x}" || broken=1
|
||||
done
|
||||
echo "broken: ${broken}"
|
||||
|
||||
# Try appending again, now that we've fixed the fs
|
||||
echo "+ modify files (2)"
|
||||
for x in `seq 1 64`; do
|
||||
$XFS_IO_PROG -f -c "pwrite -S 0x62 ${blksz} ${blksz}" "${TESTFILE}.${x}" >> $seqres.full
|
||||
done
|
||||
umount "${SCRATCH_MNT}"
|
||||
|
||||
echo "+ repair fs"
|
||||
_scratch_xfs_repair >> $seqres.full 2>&1
|
||||
|
||||
echo "+ mount image"
|
||||
_scratch_mount
|
||||
|
||||
echo "+ chattr -R -i"
|
||||
chattr -R -f -i "${SCRATCH_MNT}/"
|
||||
|
||||
echo "+ check files (2)"
|
||||
broken=0
|
||||
for x in `seq 1 64`; do
|
||||
test -s "${TESTFILE}.${x}" || broken=1
|
||||
done
|
||||
echo "broken: ${broken}"
|
||||
umount "${SCRATCH_MNT}"
|
||||
|
||||
echo "+ check fs (2)"
|
||||
_scratch_xfs_repair -n >> $seqres.full 2>&1 || _fail "xfs_repair should not fail"
|
||||
|
||||
status=0
|
||||
exit
|
||||
Reference in New Issue
Block a user