| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2016 Oracle, Inc. All Rights Reserved. |
| # |
| # FS QA Test No. 235 |
| # |
| # Create and populate an XFS filesystem, corrupt the rmap btree, |
| # then see how the kernel and xfs_repair deal with it. |
| # |
| 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 xfs |
| _require_xfs_scratch_rmapbt |
| test -n ${FORCE_FUZZ} || _require_scratch_xfs_crc |
| |
| rm -f $seqres.full |
| |
| echo "+ create scratch fs" |
| _scratch_mkfs_xfs > /dev/null |
| |
| echo "+ mount fs image" |
| _scratch_mount |
| blksz=$(stat -f -c '%s' ${SCRATCH_MNT}) |
| agcount=$(_xfs_mount_agcount $SCRATCH_MNT) |
| |
| echo "+ make some files" |
| _pwrite_byte 0x62 0 $((blksz * 64)) ${SCRATCH_MNT}/file0 >> $seqres.full |
| _pwrite_byte 0x61 0 $((blksz * 64)) ${SCRATCH_MNT}/file1 >> $seqres.full |
| cp -p ${SCRATCH_MNT}/file0 ${SCRATCH_MNT}/file2 |
| cp -p ${SCRATCH_MNT}/file1 ${SCRATCH_MNT}/file3 |
| umount ${SCRATCH_MNT} |
| |
| echo "+ check fs" |
| _scratch_xfs_repair -n >> $seqres.full 2>&1 || \ |
| _fail "xfs_repair should not fail" |
| |
| echo "+ corrupt image" |
| seq 0 $((agcount - 1)) | while read ag; do |
| _scratch_xfs_db -x -c "agf ${ag}" -c "agf ${ag}" -c "addr rmaproot" \ |
| -c "stack" -c "blocktrash -x 4096 -y 4096 -z -n 8 -3" \ |
| >> $seqres.full 2>&1 |
| done |
| |
| echo "+ mount image && copy more" |
| if _try_scratch_mount >> $seqres.full 2>&1; then |
| |
| $XFS_IO_PROG -f -c "pwrite -S 0x63 0 $((blksz * 64))" -c "fsync" ${SCRATCH_MNT}/file4 >> $seqres.full 2>&1 |
| test -s ${SCRATCH_MNT}/file4 && _fail "should not be able to copy with busted rmap btree" |
| umount ${SCRATCH_MNT} |
| fi |
| |
| echo "+ repair fs" |
| _disable_dmesg_check |
| _repair_scratch_fs >> "$seqres.full" 2>&1 |
| _scratch_xfs_repair >> $seqres.full 2>&1 |
| |
| echo "+ mount image (2)" |
| _scratch_mount |
| |
| echo "+ chattr -R -i" |
| $CHATTR_PROG -R -f -i ${SCRATCH_MNT}/ |
| |
| echo "+ copy more (2)" |
| cp -p ${SCRATCH_MNT}/file1 ${SCRATCH_MNT}/file5 || \ |
| _fail "modified rmap tree" |
| umount ${SCRATCH_MNT} |
| |
| echo "+ check fs (2)" |
| _scratch_xfs_repair -n >> $seqres.full 2>&1 || \ |
| _fail "xfs_repair should not fail" |
| |
| status=0 |
| exit |