Files
apfstests/tests/xfs/083
T
Eryu Guan 69eb6281a9 fstests: _fail test by default when _scratch_mount fails
Previously _scratch_mount didn't check the mount status and most
tests continue to run even if the mount failed (unless test checks
for the mount status explicitly). This would result in running tests
on the underlying filesystem (usually rootfs) and implicit test
failures, and such failures can be annoying and are usually hard to
debug.

Now _fail test by default if _scratch_mount failed and introduce
_try_scratch_mount for tests that need to check mount results
themselves.

Suggested-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
2018-02-22 14:02:44 +08:00

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#! /bin/bash
# FS QA Test No. 083
#
# Create and populate an XFS filesystem, fuzz the metadata, then see how
# the kernel reacts, how xfs_repair fares in fixing the mess, and then
# try more kernel accesses to see if it really fixed things.
#
#-----------------------------------------------------------------------
# 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
. ./common/fuzzy
# real QA test starts here
_supported_fs xfs
_supported_os Linux
_require_scratch
#_require_xfs_crc # checksum not required, but you probably want it anyway...
#_require_xfs_mkfs_crc
_require_attrs
_require_populate_commands
scratch_repair() {
fsck_pass="$1"
FSCK_LOG="${tmp}-fuzz-${fsck_pass}.log"
echo "++ fsck pass ${fsck_pass}" > "${FSCK_LOG}"
_scratch_xfs_repair >> "${FSCK_LOG}" 2>&1
res=$?
if [ "${res}" -eq 0 ]; then
echo "++ allegedly fixed, reverify" >> "${FSCK_LOG}"
_scratch_xfs_repair -n >> "${FSCK_LOG}" 2>&1
res=$?
fi
echo "++ fsck returns ${res}" >> "${FSCK_LOG}"
if [ "${res}" -eq 0 ]; then
echo "++ fsck thinks we are done" >> "${FSCK_LOG}"
cat "${FSCK_LOG}"
return 0
elif [ "${res}" -eq 2 ]; then
# replay log?
echo "+++ replaying log" >> "${FSCK_LOG}"
_try_scratch_mount >> "${FSCK_LOG}" 2>&1
res=$?
echo "+++ mount returns ${res}" >> "${FSCK_LOG}"
if [ "${res}" -gt 0 ]; then
echo "+++ zeroing log" >> "${FSCK_LOG}"
_scratch_xfs_repair -L >> "${FSCK_LOG}" 2>&1
echo "+++ returns $?" >> "${FSCK_LOG}"
else
umount "${SCRATCH_MNT}" >> "${FSCK_LOG}" 2>&1
fi
elif [ "${fsck_pass}" -eq "${FSCK_PASSES}" ]; then
echo "++ fsck did not fix in ${FSCK_PASSES} passes." >> "${FSCK_LOG}"
cat "${FSCK_LOG}"
return 0
fi
cat "${FSCK_LOG}"
if [ "${fsck_pass}" -gt 1 ]; then
cmp -s "${tmp}-fuzz-$((fsck_pass - 1)).log" "${FSCK_LOG}"
if [ $? -eq 0 ]; then
echo "++ fsck makes no progress"
return 2
fi
fi
return 1
}
rm -f $seqres.full
# This test will corrupt fs intentionally, so there will be WARNINGs
# in dmesg as expected
_disable_dmesg_check
echo "See interesting results in $seqres.full" | sed -e "s,$RESULT_DIR,RESULT_DIR,g"
SRCDIR=`pwd`
test -z "${FUZZ_ARGS}" && FUZZ_ARGS="-3 -n 32"
test -z "${FSCK_PASSES}" && FSCK_PASSES=10
BLK_SZ=4096
echo "fuzzing xfs with FUZZ_ARGS=$FUZZ_ARGS and FSCK_PASSES=$FSCK_PASSES" > $seqres.full
echo "+ create scratch fs" >> $seqres.full
_scratch_mkfs_xfs >> $seqres.full 2>&1
echo "+ populate fs image" >> $seqres.full
_scratch_populate >> $seqres.full
echo "+ check fs" >> $seqres.full
_scratch_xfs_repair >> $seqres.full 2>&1 || _fail "should pass initial fsck"
echo "++ corrupt image" >> $seqres.full
xfs_db -x -c blockget -c "blocktrash ${FUZZ_ARGS}" "${SCRATCH_DEV}" >> $seqres.full 2>&1
echo "++ mount image" >> $seqres.full
_try_scratch_mount >> $seqres.full 2>&1
echo "+++ test scratch" >> $seqres.full
_scratch_fuzz_test >> $seqres.full 2>&1
echo "+++ modify scratch" >> $seqres.full
_scratch_fuzz_modify >> $seqres.full 2>&1
echo "++ umount" >> $seqres.full
umount "${SCRATCH_MNT}"
# repair in a loop...
for p in $(seq 1 "${FSCK_PASSES}"); do
scratch_repair "$p" >> $seqres.full 2>&1 && break
done
echo "+ fsck loop returns ${fsck_loop_ret}" >> $seqres.full
echo "++ check fs for round 2" >> $seqres.full
_scratch_xfs_repair >> $seqres.full 2>&1
ROUND2_LOG="${tmp}-round2-${fsck_pass}.log"
echo "++ mount image (2)" >> $ROUND2_LOG
_try_scratch_mount >> $ROUND2_LOG 2>&1
echo "++ chattr -R -i" >> $ROUND2_LOG
$CHATTR_PROG -R -f -i "${SCRATCH_MNT}/" > /dev/null 2>> $ROUND2_LOG
echo "+++ test scratch" >> $ROUND2_LOG
_scratch_fuzz_test >> $ROUND2_LOG 2>&1
echo "+++ modify scratch" >> $ROUND2_LOG
_scratch_fuzz_modify >> $ROUND2_LOG 2>&1
echo "++ umount" >> $ROUND2_LOG
umount "${SCRATCH_MNT}" >> $ROUND2_LOG 2>&1
cat "$ROUND2_LOG" >> $seqres.full
echo "++ check fs (2)" >> $seqres.full
_scratch_xfs_repair >> $seqres.full 2>&1
egrep -q '(did not fix|makes no progress)' $seqres.full && echo "xfs_repair failed" | tee -a $seqres.full
if [ "$(wc -l < "$ROUND2_LOG")" -ne 8 ]; then
echo "xfs_repair did not fix everything" | tee -a $seqres.full
fi
echo "finished fuzzing" | tee -a "$seqres.full"
status=0
exit