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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
#
# FS QA Test No. 030
#
# exercise xfs_repair repairing broken filesystems
#
seqfull=$0
. ./common/preamble
_begin_fstest repair auto quick
# Override the default cleanup function.
_cleanup()
{
cd /
_scratch_unmount 2>/dev/null
rm -f $tmp.*
}
# Import common functions.
. ./common/filter
. ./common/repair
. ./common/quota
# nuke the superblock, AGI, AGF, AGFL; then try repair the damage
#
_check_ag()
{
for structure in 'sb 0' 'agf 0' 'agi 0' 'agfl 0'
do
echo "Corrupting $structure - setting bits to $1"
_check_repair $1 "$structure" | uniq |
sed -e '/^error following ag 0 unlinked list$/d' \
-e '/^bad agbno AGBNO for finobt/d' \
-e '/^bad agbno AGBNO for rmapbt/d' \
-e '/^bad agbno AGBNO for refcntbt/d' \
-e '/^agf has bad CRC/d' \
-e '/^agi has bad CRC/d' \
-e '/^bad inobt block count/d' \
-e '/^bad finobt block count/d' \
-e '/^Missing reverse-mapping record.*/d' \
-e '/^bad levels LEVELS for [a-z]* root.*/d' \
-e '/^unknown block state, ag AGNO, block.*/d'
done
}
# real QA test starts here
_supported_fs xfs
_require_scratch
_require_no_large_scratch_dev
DSIZE="-dsize=100m,agcount=6"
# first we need to ensure there are no bogus secondary
# superblocks between the primary and first secondary
# superblock (hanging around from earlier tests)...
#
_scratch_mkfs_xfs $DSIZE >/dev/null 2>&1
if [ $? -ne 0 ] # probably don't have a big enough scratch
then
_notrun "SCRATCH_DEV too small, results would be non-deterministic"
else
_qmount_option noquota
_scratch_mount
$here/src/feature -U $SCRATCH_DEV && \
_notrun "UQuota are enabled, test needs controlled sb recovery"
$here/src/feature -G $SCRATCH_DEV && \
_notrun "GQuota are enabled, test needs controlled sb recovery"
$here/src/feature -P $SCRATCH_DEV && \
_notrun "PQuota are enabled, test needs controlled sb recovery"
_scratch_unmount
fi
clear=""
eval `_scratch_xfs_db -r -c "sb 1" -c stack | perl -ne '
if (/byte offset (\d+), length (\d+)/) {
print "clear=", $1 / 512, "\n"; exit
}'`
[ -z "$clear" ] && echo "Cannot calculate length to clear"
$here/src/devzero -v -1 -n "$clear" $SCRATCH_DEV >/dev/null
# now kick off the real repair test...
#
_scratch_mkfs_xfs $DSIZE | _filter_mkfs 2>$tmp.mkfs
. $tmp.mkfs
_check_ag 0
_check_ag -1
# success, all done
status=0
exit
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