2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016 Oracle, Inc. All Rights Reserved.
7 # Create and populate an XFS filesystem, corrupt the rmap btree,
8 # then see how the kernel and xfs_repair deal with it.
11 seqres=$RESULT_DIR/$seq
12 echo "QA output created by $seq"
16 status=1 # failure is the default!
17 trap "_cleanup; exit \$status" 0 1 2 3 15
25 # get standard environment, filters and checks
30 # real QA test starts here
32 _require_xfs_scratch_rmapbt
33 test -n ${FORCE_FUZZ} || _require_scratch_xfs_crc
37 echo "+ create scratch fs"
38 _scratch_mkfs_xfs > /dev/null
40 echo "+ mount fs image"
42 blksz=$(stat -f -c '%s' ${SCRATCH_MNT})
43 agcount=$(_xfs_mount_agcount $SCRATCH_MNT)
45 echo "+ make some files"
46 _pwrite_byte 0x62 0 $((blksz * 64)) ${SCRATCH_MNT}/file0 >> $seqres.full
47 _pwrite_byte 0x61 0 $((blksz * 64)) ${SCRATCH_MNT}/file1 >> $seqres.full
48 cp -p ${SCRATCH_MNT}/file0 ${SCRATCH_MNT}/file2
49 cp -p ${SCRATCH_MNT}/file1 ${SCRATCH_MNT}/file3
53 _scratch_xfs_repair -n >> $seqres.full 2>&1 || \
54 _fail "xfs_repair should not fail"
56 echo "+ corrupt image"
57 seq 0 $((agcount - 1)) | while read ag; do
58 _scratch_xfs_db -x -c "agf ${ag}" -c "agf ${ag}" -c "addr rmaproot" \
59 -c "stack" -c "blocktrash -x 4096 -y 4096 -z -n 8 -3" \
63 echo "+ mount image && copy more"
64 if _try_scratch_mount >> $seqres.full 2>&1; then
66 $XFS_IO_PROG -f -c "pwrite -S 0x63 0 $((blksz * 64))" -c "fsync" ${SCRATCH_MNT}/file4 >> $seqres.full 2>&1
67 test -s ${SCRATCH_MNT}/file4 && _fail "should not be able to copy with busted rmap btree"
73 _repair_scratch_fs >> "$seqres.full" 2>&1
74 _scratch_xfs_repair >> $seqres.full 2>&1
76 echo "+ mount image (2)"
80 $CHATTR_PROG -R -f -i ${SCRATCH_MNT}/
82 echo "+ copy more (2)"
83 cp -p ${SCRATCH_MNT}/file1 ${SCRATCH_MNT}/file5 || \
84 _fail "modified rmap tree"
88 _scratch_xfs_repair -n >> $seqres.full 2>&1 || \
89 _fail "xfs_repair should not fail"